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-rw-r--r--cddl/contrib/opensolaris/cmd/zdb/zdb.c5749
1 files changed, 0 insertions, 5749 deletions
diff --git a/cddl/contrib/opensolaris/cmd/zdb/zdb.c b/cddl/contrib/opensolaris/cmd/zdb/zdb.c
deleted file mode 100644
index d51ddc68908c..000000000000
--- a/cddl/contrib/opensolaris/cmd/zdb/zdb.c
+++ /dev/null
@@ -1,5749 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2011, 2018 by Delphix. All rights reserved.
- * Copyright (c) 2014 Integros [integros.com]
- * Copyright 2017 Nexenta Systems, Inc.
- * Copyright (c) 2017, 2018 Lawrence Livermore National Security, LLC.
- * Copyright 2017 RackTop Systems.
- */
-
-#include <stdio.h>
-#include <unistd.h>
-#include <stdio_ext.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <sys/zfs_context.h>
-#include <sys/spa.h>
-#include <sys/spa_impl.h>
-#include <sys/dmu.h>
-#include <sys/zap.h>
-#include <sys/fs/zfs.h>
-#include <sys/zfs_znode.h>
-#include <sys/zfs_sa.h>
-#include <sys/sa.h>
-#include <sys/sa_impl.h>
-#include <sys/vdev.h>
-#include <sys/vdev_impl.h>
-#include <sys/metaslab_impl.h>
-#include <sys/dmu_objset.h>
-#include <sys/dsl_dir.h>
-#include <sys/dsl_dataset.h>
-#include <sys/dsl_pool.h>
-#include <sys/dbuf.h>
-#include <sys/zil.h>
-#include <sys/zil_impl.h>
-#include <sys/stat.h>
-#include <sys/resource.h>
-#include <sys/dmu_traverse.h>
-#include <sys/zio_checksum.h>
-#include <sys/zio_compress.h>
-#include <sys/zfs_fuid.h>
-#include <sys/arc.h>
-#include <sys/ddt.h>
-#include <sys/zfeature.h>
-#include <sys/abd.h>
-#include <sys/blkptr.h>
-#include <sys/dsl_scan.h>
-#include <zfs_comutil.h>
-#include <libcmdutils.h>
-#undef verify
-#include <libzfs.h>
-
-#include "zdb.h"
-
-#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
- zio_compress_table[(idx)].ci_name : "UNKNOWN")
-#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
- zio_checksum_table[(idx)].ci_name : "UNKNOWN")
-#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
- dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
- dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
-#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
- (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \
- DMU_OT_ZAP_OTHER : \
- (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \
- DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES)
-
-#ifndef lint
-extern int reference_tracking_enable;
-extern boolean_t zfs_recover;
-extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
-extern int zfs_vdev_async_read_max_active;
-extern boolean_t spa_load_verify_dryrun;
-extern int aok;
-#else
-int reference_tracking_enable;
-boolean_t zfs_recover;
-uint64_t zfs_arc_max, zfs_arc_meta_limit;
-int zfs_vdev_async_read_max_active;
-boolean_t spa_load_verify_dryrun;
-int aok;
-#endif
-
-static const char cmdname[] = "zdb";
-uint8_t dump_opt[256];
-
-typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
-
-static uint64_t *zopt_object = NULL;
-static unsigned zopt_objects = 0;
-static libzfs_handle_t *g_zfs;
-static uint64_t max_inflight = 1000;
-static int leaked_objects = 0;
-
-static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
-static void mos_obj_refd(uint64_t);
-
-/*
- * These libumem hooks provide a reasonable set of defaults for the allocator's
- * debugging facilities.
- */
-const char *
-_umem_debug_init()
-{
- return ("default,verbose"); /* $UMEM_DEBUG setting */
-}
-
-const char *
-_umem_logging_init(void)
-{
- return ("fail,contents"); /* $UMEM_LOGGING setting */
-}
-
-static void
-usage(void)
-{
- (void) fprintf(stderr,
- "Usage:\t%s [-AbcdDFGhikLMPsvX] [-e [-V] [-p <path> ...]] "
- "[-I <inflight I/Os>]\n"
- "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
- "\t\t[<poolname> [<object> ...]]\n"
- "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> "
- "[<object> ...]\n"
- "\t%s -C [-A] [-U <cache>]\n"
- "\t%s -l [-Aqu] <device>\n"
- "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
- "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
- "\t%s -O <dataset> <path>\n"
- "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
- "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
- "\t%s -E [-A] word0:word1:...:word15\n"
- "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
- "<poolname>\n\n",
- cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
- cmdname, cmdname);
-
- (void) fprintf(stderr, " Dataset name must include at least one "
- "separator character '/' or '@'\n");
- (void) fprintf(stderr, " If dataset name is specified, only that "
- "dataset is dumped\n");
- (void) fprintf(stderr, " If object numbers are specified, only "
- "those objects are dumped\n\n");
- (void) fprintf(stderr, " Options to control amount of output:\n");
- (void) fprintf(stderr, " -b block statistics\n");
- (void) fprintf(stderr, " -c checksum all metadata (twice for "
- "all data) blocks\n");
- (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
- (void) fprintf(stderr, " -d dataset(s)\n");
- (void) fprintf(stderr, " -D dedup statistics\n");
- (void) fprintf(stderr, " -E decode and display block from an "
- "embedded block pointer\n");
- (void) fprintf(stderr, " -h pool history\n");
- (void) fprintf(stderr, " -i intent logs\n");
- (void) fprintf(stderr, " -l read label contents\n");
- (void) fprintf(stderr, " -k examine the checkpointed state "
- "of the pool\n");
- (void) fprintf(stderr, " -L disable leak tracking (do not "
- "load spacemaps)\n");
- (void) fprintf(stderr, " -m metaslabs\n");
- (void) fprintf(stderr, " -M metaslab groups\n");
- (void) fprintf(stderr, " -O perform object lookups by path\n");
- (void) fprintf(stderr, " -R read and display block from a "
- "device\n");
- (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
- (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
- (void) fprintf(stderr, " -v verbose (applies to all "
- "others)\n\n");
- (void) fprintf(stderr, " Below options are intended for use "
- "with other options:\n");
- (void) fprintf(stderr, " -A ignore assertions (-A), enable "
- "panic recovery (-AA) or both (-AAA)\n");
- (void) fprintf(stderr, " -e pool is exported/destroyed/"
- "has altroot/not in a cachefile\n");
- (void) fprintf(stderr, " -F attempt automatic rewind within "
- "safe range of transaction groups\n");
- (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
- "exiting\n");
- (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
- "specify the maximum number of "
- "checksumming I/Os [default is 200]\n");
- (void) fprintf(stderr, " -o <variable>=<value> set global "
- "variable to an unsigned 32-bit integer value\n");
- (void) fprintf(stderr, " -p <path> -- use one or more with "
- "-e to specify path to vdev dir\n");
- (void) fprintf(stderr, " -P print numbers in parseable form\n");
- (void) fprintf(stderr, " -q don't print label contents\n");
- (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
- "searching for uberblocks\n");
- (void) fprintf(stderr, " -u uberblock\n");
- (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
- "cachefile\n");
- (void) fprintf(stderr, " -V do verbatim import\n");
- (void) fprintf(stderr, " -x <dumpdir> -- "
- "dump all read blocks into specified directory\n");
- (void) fprintf(stderr, " -X attempt extreme rewind (does not "
- "work with dataset)\n\n");
- (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
- "to make only that option verbose\n");
- (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
- exit(1);
-}
-
-static void
-dump_debug_buffer()
-{
- if (dump_opt['G']) {
- (void) printf("\n");
- zfs_dbgmsg_print("zdb");
- }
-}
-
-/*
- * Called for usage errors that are discovered after a call to spa_open(),
- * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
- */
-
-static void
-fatal(const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- (void) fprintf(stderr, "%s: ", cmdname);
- (void) vfprintf(stderr, fmt, ap);
- va_end(ap);
- (void) fprintf(stderr, "\n");
-
- dump_debug_buffer();
-
- exit(1);
-}
-
-/* ARGSUSED */
-static void
-dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
-{
- nvlist_t *nv;
- size_t nvsize = *(uint64_t *)data;
- char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
-
- VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
-
- VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
-
- umem_free(packed, nvsize);
-
- dump_nvlist(nv, 8);
-
- nvlist_free(nv);
-}
-
-/* ARGSUSED */
-static void
-dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
-{
- spa_history_phys_t *shp = data;
-
- if (shp == NULL)
- return;
-
- (void) printf("\t\tpool_create_len = %llu\n",
- (u_longlong_t)shp->sh_pool_create_len);
- (void) printf("\t\tphys_max_off = %llu\n",
- (u_longlong_t)shp->sh_phys_max_off);
- (void) printf("\t\tbof = %llu\n",
- (u_longlong_t)shp->sh_bof);
- (void) printf("\t\teof = %llu\n",
- (u_longlong_t)shp->sh_eof);
- (void) printf("\t\trecords_lost = %llu\n",
- (u_longlong_t)shp->sh_records_lost);
-}
-
-static void
-zdb_nicenum(uint64_t num, char *buf, size_t buflen)
-{
- if (dump_opt['P'])
- (void) snprintf(buf, buflen, "%llu", (longlong_t)num);
- else
- nicenum(num, buf, sizeof (buf));
-}
-
-static const char histo_stars[] = "****************************************";
-static const uint64_t histo_width = sizeof (histo_stars) - 1;
-
-static void
-dump_histogram(const uint64_t *histo, int size, int offset)
-{
- int i;
- int minidx = size - 1;
- int maxidx = 0;
- uint64_t max = 0;
-
- for (i = 0; i < size; i++) {
- if (histo[i] > max)
- max = histo[i];
- if (histo[i] > 0 && i > maxidx)
- maxidx = i;
- if (histo[i] > 0 && i < minidx)
- minidx = i;
- }
-
- if (max < histo_width)
- max = histo_width;
-
- for (i = minidx; i <= maxidx; i++) {
- (void) printf("\t\t\t%3u: %6llu %s\n",
- i + offset, (u_longlong_t)histo[i],
- &histo_stars[(max - histo[i]) * histo_width / max]);
- }
-}
-
-static void
-dump_zap_stats(objset_t *os, uint64_t object)
-{
- int error;
- zap_stats_t zs;
-
- error = zap_get_stats(os, object, &zs);
- if (error)
- return;
-
- if (zs.zs_ptrtbl_len == 0) {
- ASSERT(zs.zs_num_blocks == 1);
- (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
- (u_longlong_t)zs.zs_blocksize,
- (u_longlong_t)zs.zs_num_entries);
- return;
- }
-
- (void) printf("\tFat ZAP stats:\n");
-
- (void) printf("\t\tPointer table:\n");
- (void) printf("\t\t\t%llu elements\n",
- (u_longlong_t)zs.zs_ptrtbl_len);
- (void) printf("\t\t\tzt_blk: %llu\n",
- (u_longlong_t)zs.zs_ptrtbl_zt_blk);
- (void) printf("\t\t\tzt_numblks: %llu\n",
- (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
- (void) printf("\t\t\tzt_shift: %llu\n",
- (u_longlong_t)zs.zs_ptrtbl_zt_shift);
- (void) printf("\t\t\tzt_blks_copied: %llu\n",
- (u_longlong_t)zs.zs_ptrtbl_blks_copied);
- (void) printf("\t\t\tzt_nextblk: %llu\n",
- (u_longlong_t)zs.zs_ptrtbl_nextblk);
-
- (void) printf("\t\tZAP entries: %llu\n",
- (u_longlong_t)zs.zs_num_entries);
- (void) printf("\t\tLeaf blocks: %llu\n",
- (u_longlong_t)zs.zs_num_leafs);
- (void) printf("\t\tTotal blocks: %llu\n",
- (u_longlong_t)zs.zs_num_blocks);
- (void) printf("\t\tzap_block_type: 0x%llx\n",
- (u_longlong_t)zs.zs_block_type);
- (void) printf("\t\tzap_magic: 0x%llx\n",
- (u_longlong_t)zs.zs_magic);
- (void) printf("\t\tzap_salt: 0x%llx\n",
- (u_longlong_t)zs.zs_salt);
-
- (void) printf("\t\tLeafs with 2^n pointers:\n");
- dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
-
- (void) printf("\t\tBlocks with n*5 entries:\n");
- dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
-
- (void) printf("\t\tBlocks n/10 full:\n");
- dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
-
- (void) printf("\t\tEntries with n chunks:\n");
- dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
-
- (void) printf("\t\tBuckets with n entries:\n");
- dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
-}
-
-/*ARGSUSED*/
-static void
-dump_none(objset_t *os, uint64_t object, void *data, size_t size)
-{
-}
-
-/*ARGSUSED*/
-static void
-dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
-{
- (void) printf("\tUNKNOWN OBJECT TYPE\n");
-}
-
-/*ARGSUSED*/
-static void
-dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
-{
-}
-
-/*ARGSUSED*/
-static void
-dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
-{
-}
-
-/*ARGSUSED*/
-static void
-dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
-{
- zap_cursor_t zc;
- zap_attribute_t attr;
- void *prop;
- unsigned i;
-
- dump_zap_stats(os, object);
- (void) printf("\n");
-
- for (zap_cursor_init(&zc, os, object);
- zap_cursor_retrieve(&zc, &attr) == 0;
- zap_cursor_advance(&zc)) {
- (void) printf("\t\t%s = ", attr.za_name);
- if (attr.za_num_integers == 0) {
- (void) printf("\n");
- continue;
- }
- prop = umem_zalloc(attr.za_num_integers *
- attr.za_integer_length, UMEM_NOFAIL);
- (void) zap_lookup(os, object, attr.za_name,
- attr.za_integer_length, attr.za_num_integers, prop);
- if (attr.za_integer_length == 1) {
- (void) printf("%s", (char *)prop);
- } else {
- for (i = 0; i < attr.za_num_integers; i++) {
- switch (attr.za_integer_length) {
- case 2:
- (void) printf("%u ",
- ((uint16_t *)prop)[i]);
- break;
- case 4:
- (void) printf("%u ",
- ((uint32_t *)prop)[i]);
- break;
- case 8:
- (void) printf("%lld ",
- (u_longlong_t)((int64_t *)prop)[i]);
- break;
- }
- }
- }
- (void) printf("\n");
- umem_free(prop, attr.za_num_integers * attr.za_integer_length);
- }
- zap_cursor_fini(&zc);
-}
-
-static void
-dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
-{
- bpobj_phys_t *bpop = data;
- char bytes[32], comp[32], uncomp[32];
-
- /* make sure the output won't get truncated */
- CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
-
- if (bpop == NULL)
- return;
-
- zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes));
- zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp));
- zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp));
-
- (void) printf("\t\tnum_blkptrs = %llu\n",
- (u_longlong_t)bpop->bpo_num_blkptrs);
- (void) printf("\t\tbytes = %s\n", bytes);
- if (size >= BPOBJ_SIZE_V1) {
- (void) printf("\t\tcomp = %s\n", comp);
- (void) printf("\t\tuncomp = %s\n", uncomp);
- }
- if (size >= sizeof (*bpop)) {
- (void) printf("\t\tsubobjs = %llu\n",
- (u_longlong_t)bpop->bpo_subobjs);
- (void) printf("\t\tnum_subobjs = %llu\n",
- (u_longlong_t)bpop->bpo_num_subobjs);
- }
-
- if (dump_opt['d'] < 5)
- return;
-
- for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
- char blkbuf[BP_SPRINTF_LEN];
- blkptr_t bp;
-
- int err = dmu_read(os, object,
- i * sizeof (bp), sizeof (bp), &bp, 0);
- if (err != 0) {
- (void) printf("got error %u from dmu_read\n", err);
- break;
- }
- snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
- (void) printf("\t%s\n", blkbuf);
- }
-}
-
-/* ARGSUSED */
-static void
-dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
-{
- dmu_object_info_t doi;
-
- VERIFY0(dmu_object_info(os, object, &doi));
- uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
-
- int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
- if (err != 0) {
- (void) printf("got error %u from dmu_read\n", err);
- kmem_free(subobjs, doi.doi_max_offset);
- return;
- }
-
- int64_t last_nonzero = -1;
- for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
- if (subobjs[i] != 0)
- last_nonzero = i;
- }
-
- for (int64_t i = 0; i <= last_nonzero; i++) {
- (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
- }
- kmem_free(subobjs, doi.doi_max_offset);
-}
-
-/*ARGSUSED*/
-static void
-dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
-{
- dump_zap_stats(os, object);
- /* contents are printed elsewhere, properly decoded */
-}
-
-/*ARGSUSED*/
-static void
-dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
-{
- zap_cursor_t zc;
- zap_attribute_t attr;
-
- dump_zap_stats(os, object);
- (void) printf("\n");
-
- for (zap_cursor_init(&zc, os, object);
- zap_cursor_retrieve(&zc, &attr) == 0;
- zap_cursor_advance(&zc)) {
- (void) printf("\t\t%s = ", attr.za_name);
- if (attr.za_num_integers == 0) {
- (void) printf("\n");
- continue;
- }
- (void) printf(" %llx : [%d:%d:%d]\n",
- (u_longlong_t)attr.za_first_integer,
- (int)ATTR_LENGTH(attr.za_first_integer),
- (int)ATTR_BSWAP(attr.za_first_integer),
- (int)ATTR_NUM(attr.za_first_integer));
- }
- zap_cursor_fini(&zc);
-}
-
-/*ARGSUSED*/
-static void
-dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
-{
- zap_cursor_t zc;
- zap_attribute_t attr;
- uint16_t *layout_attrs;
- unsigned i;
-
- dump_zap_stats(os, object);
- (void) printf("\n");
-
- for (zap_cursor_init(&zc, os, object);
- zap_cursor_retrieve(&zc, &attr) == 0;
- zap_cursor_advance(&zc)) {
- (void) printf("\t\t%s = [", attr.za_name);
- if (attr.za_num_integers == 0) {
- (void) printf("\n");
- continue;
- }
-
- VERIFY(attr.za_integer_length == 2);
- layout_attrs = umem_zalloc(attr.za_num_integers *
- attr.za_integer_length, UMEM_NOFAIL);
-
- VERIFY(zap_lookup(os, object, attr.za_name,
- attr.za_integer_length,
- attr.za_num_integers, layout_attrs) == 0);
-
- for (i = 0; i != attr.za_num_integers; i++)
- (void) printf(" %d ", (int)layout_attrs[i]);
- (void) printf("]\n");
- umem_free(layout_attrs,
- attr.za_num_integers * attr.za_integer_length);
- }
- zap_cursor_fini(&zc);
-}
-
-/*ARGSUSED*/
-static void
-dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
-{
- zap_cursor_t zc;
- zap_attribute_t attr;
- const char *typenames[] = {
- /* 0 */ "not specified",
- /* 1 */ "FIFO",
- /* 2 */ "Character Device",
- /* 3 */ "3 (invalid)",
- /* 4 */ "Directory",
- /* 5 */ "5 (invalid)",
- /* 6 */ "Block Device",
- /* 7 */ "7 (invalid)",
- /* 8 */ "Regular File",
- /* 9 */ "9 (invalid)",
- /* 10 */ "Symbolic Link",
- /* 11 */ "11 (invalid)",
- /* 12 */ "Socket",
- /* 13 */ "Door",
- /* 14 */ "Event Port",
- /* 15 */ "15 (invalid)",
- };
-
- dump_zap_stats(os, object);
- (void) printf("\n");
-
- for (zap_cursor_init(&zc, os, object);
- zap_cursor_retrieve(&zc, &attr) == 0;
- zap_cursor_advance(&zc)) {
- (void) printf("\t\t%s = %lld (type: %s)\n",
- attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
- typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
- }
- zap_cursor_fini(&zc);
-}
-
-static int
-get_dtl_refcount(vdev_t *vd)
-{
- int refcount = 0;
-
- if (vd->vdev_ops->vdev_op_leaf) {
- space_map_t *sm = vd->vdev_dtl_sm;
-
- if (sm != NULL &&
- sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
- return (1);
- return (0);
- }
-
- for (unsigned c = 0; c < vd->vdev_children; c++)
- refcount += get_dtl_refcount(vd->vdev_child[c]);
- return (refcount);
-}
-
-static int
-get_metaslab_refcount(vdev_t *vd)
-{
- int refcount = 0;
-
- if (vd->vdev_top == vd) {
- for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
- space_map_t *sm = vd->vdev_ms[m]->ms_sm;
-
- if (sm != NULL &&
- sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
- refcount++;
- }
- }
- for (unsigned c = 0; c < vd->vdev_children; c++)
- refcount += get_metaslab_refcount(vd->vdev_child[c]);
-
- return (refcount);
-}
-
-static int
-get_obsolete_refcount(vdev_t *vd)
-{
- int refcount = 0;
-
- uint64_t obsolete_sm_obj = vdev_obsolete_sm_object(vd);
- if (vd->vdev_top == vd && obsolete_sm_obj != 0) {
- dmu_object_info_t doi;
- VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset,
- obsolete_sm_obj, &doi));
- if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
- refcount++;
- }
- } else {
- ASSERT3P(vd->vdev_obsolete_sm, ==, NULL);
- ASSERT3U(obsolete_sm_obj, ==, 0);
- }
- for (unsigned c = 0; c < vd->vdev_children; c++) {
- refcount += get_obsolete_refcount(vd->vdev_child[c]);
- }
-
- return (refcount);
-}
-
-static int
-get_prev_obsolete_spacemap_refcount(spa_t *spa)
-{
- uint64_t prev_obj =
- spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object;
- if (prev_obj != 0) {
- dmu_object_info_t doi;
- VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi));
- if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
- return (1);
- }
- }
- return (0);
-}
-
-static int
-get_checkpoint_refcount(vdev_t *vd)
-{
- int refcount = 0;
-
- if (vd->vdev_top == vd && vd->vdev_top_zap != 0 &&
- zap_contains(spa_meta_objset(vd->vdev_spa),
- vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0)
- refcount++;
-
- for (uint64_t c = 0; c < vd->vdev_children; c++)
- refcount += get_checkpoint_refcount(vd->vdev_child[c]);
-
- return (refcount);
-}
-
-static int
-verify_spacemap_refcounts(spa_t *spa)
-{
- uint64_t expected_refcount = 0;
- uint64_t actual_refcount;
-
- (void) feature_get_refcount(spa,
- &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
- &expected_refcount);
- actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
- actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
- actual_refcount += get_obsolete_refcount(spa->spa_root_vdev);
- actual_refcount += get_prev_obsolete_spacemap_refcount(spa);
- actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev);
-
- if (expected_refcount != actual_refcount) {
- (void) printf("space map refcount mismatch: expected %lld != "
- "actual %lld\n",
- (longlong_t)expected_refcount,
- (longlong_t)actual_refcount);
- return (2);
- }
- return (0);
-}
-
-static void
-dump_spacemap(objset_t *os, space_map_t *sm)
-{
- char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
- "INVALID", "INVALID", "INVALID", "INVALID" };
-
- if (sm == NULL)
- return;
-
- (void) printf("space map object %llu:\n",
- (longlong_t)sm->sm_object);
- (void) printf(" smp_length = 0x%llx\n",
- (longlong_t)sm->sm_phys->smp_length);
- (void) printf(" smp_alloc = 0x%llx\n",
- (longlong_t)sm->sm_phys->smp_alloc);
-
- if (dump_opt['d'] < 6 && dump_opt['m'] < 4)
- return;
-
- /*
- * Print out the freelist entries in both encoded and decoded form.
- */
- uint8_t mapshift = sm->sm_shift;
- int64_t alloc = 0;
- uint64_t word, entry_id = 0;
- for (uint64_t offset = 0; offset < space_map_length(sm);
- offset += sizeof (word)) {
-
- VERIFY0(dmu_read(os, space_map_object(sm), offset,
- sizeof (word), &word, DMU_READ_PREFETCH));
-
- if (sm_entry_is_debug(word)) {
- (void) printf("\t [%6llu] %s: txg %llu pass %llu\n",
- (u_longlong_t)entry_id,
- ddata[SM_DEBUG_ACTION_DECODE(word)],
- (u_longlong_t)SM_DEBUG_TXG_DECODE(word),
- (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(word));
- entry_id++;
- continue;
- }
-
- uint8_t words;
- char entry_type;
- uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID;
-
- if (sm_entry_is_single_word(word)) {
- entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ?
- 'A' : 'F';
- entry_off = (SM_OFFSET_DECODE(word) << mapshift) +
- sm->sm_start;
- entry_run = SM_RUN_DECODE(word) << mapshift;
- words = 1;
- } else {
- /* it is a two-word entry so we read another word */
- ASSERT(sm_entry_is_double_word(word));
-
- uint64_t extra_word;
- offset += sizeof (extra_word);
- VERIFY0(dmu_read(os, space_map_object(sm), offset,
- sizeof (extra_word), &extra_word,
- DMU_READ_PREFETCH));
-
- ASSERT3U(offset, <=, space_map_length(sm));
-
- entry_run = SM2_RUN_DECODE(word) << mapshift;
- entry_vdev = SM2_VDEV_DECODE(word);
- entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ?
- 'A' : 'F';
- entry_off = (SM2_OFFSET_DECODE(extra_word) <<
- mapshift) + sm->sm_start;
- words = 2;
- }
-
- (void) printf("\t [%6llu] %c range:"
- " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n",
- (u_longlong_t)entry_id,
- entry_type, (u_longlong_t)entry_off,
- (u_longlong_t)(entry_off + entry_run),
- (u_longlong_t)entry_run,
- (u_longlong_t)entry_vdev, words);
-
- if (entry_type == 'A')
- alloc += entry_run;
- else
- alloc -= entry_run;
- entry_id++;
- }
- if (alloc != space_map_allocated(sm)) {
- (void) printf("space_map_object alloc (%lld) INCONSISTENT "
- "with space map summary (%lld)\n",
- (longlong_t)space_map_allocated(sm), (longlong_t)alloc);
- }
-}
-
-static void
-dump_metaslab_stats(metaslab_t *msp)
-{
- char maxbuf[32];
- range_tree_t *rt = msp->ms_allocatable;
- avl_tree_t *t = &msp->ms_allocatable_by_size;
- int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
-
- /* max sure nicenum has enough space */
- CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ);
-
- zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf));
-
- (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
- "segments", avl_numnodes(t), "maxsize", maxbuf,
- "freepct", free_pct);
- (void) printf("\tIn-memory histogram:\n");
- dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
-}
-
-static void
-dump_metaslab(metaslab_t *msp)
-{
- vdev_t *vd = msp->ms_group->mg_vd;
- spa_t *spa = vd->vdev_spa;
- space_map_t *sm = msp->ms_sm;
- char freebuf[32];
-
- zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf,
- sizeof (freebuf));
-
- (void) printf(
- "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
- (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
- (u_longlong_t)space_map_object(sm), freebuf);
-
- if (dump_opt['m'] > 2 && !dump_opt['L']) {
- mutex_enter(&msp->ms_lock);
- VERIFY0(metaslab_load(msp));
- range_tree_stat_verify(msp->ms_allocatable);
- dump_metaslab_stats(msp);
- metaslab_unload(msp);
- mutex_exit(&msp->ms_lock);
- }
-
- if (dump_opt['m'] > 1 && sm != NULL &&
- spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
- /*
- * The space map histogram represents free space in chunks
- * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
- */
- (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
- (u_longlong_t)msp->ms_fragmentation);
- dump_histogram(sm->sm_phys->smp_histogram,
- SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
- }
-
- ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
- dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
-}
-
-static void
-print_vdev_metaslab_header(vdev_t *vd)
-{
- vdev_alloc_bias_t alloc_bias = vd->vdev_alloc_bias;
- const char *bias_str;
-
- bias_str = (alloc_bias == VDEV_BIAS_LOG || vd->vdev_islog) ?
- VDEV_ALLOC_BIAS_LOG :
- (alloc_bias == VDEV_BIAS_SPECIAL) ? VDEV_ALLOC_BIAS_SPECIAL :
- (alloc_bias == VDEV_BIAS_DEDUP) ? VDEV_ALLOC_BIAS_DEDUP :
- vd->vdev_islog ? "log" : "";
-
- (void) printf("\tvdev %10llu %s\n"
- "\t%-10s%5llu %-19s %-15s %-12s\n",
- (u_longlong_t)vd->vdev_id, bias_str,
- "metaslabs", (u_longlong_t)vd->vdev_ms_count,
- "offset", "spacemap", "free");
- (void) printf("\t%15s %19s %15s %12s\n",
- "---------------", "-------------------",
- "---------------", "------------");
-}
-
-static void
-dump_metaslab_groups(spa_t *spa)
-{
- vdev_t *rvd = spa->spa_root_vdev;
- metaslab_class_t *mc = spa_normal_class(spa);
- uint64_t fragmentation;
-
- metaslab_class_histogram_verify(mc);
-
- for (unsigned c = 0; c < rvd->vdev_children; c++) {
- vdev_t *tvd = rvd->vdev_child[c];
- metaslab_group_t *mg = tvd->vdev_mg;
-
- if (mg == NULL || mg->mg_class != mc)
- continue;
-
- metaslab_group_histogram_verify(mg);
- mg->mg_fragmentation = metaslab_group_fragmentation(mg);
-
- (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
- "fragmentation",
- (u_longlong_t)tvd->vdev_id,
- (u_longlong_t)tvd->vdev_ms_count);
- if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
- (void) printf("%3s\n", "-");
- } else {
- (void) printf("%3llu%%\n",
- (u_longlong_t)mg->mg_fragmentation);
- }
- dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
- }
-
- (void) printf("\tpool %s\tfragmentation", spa_name(spa));
- fragmentation = metaslab_class_fragmentation(mc);
- if (fragmentation == ZFS_FRAG_INVALID)
- (void) printf("\t%3s\n", "-");
- else
- (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
- dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
-}
-
-static void
-print_vdev_indirect(vdev_t *vd)
-{
- vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
- vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
- vdev_indirect_births_t *vib = vd->vdev_indirect_births;
-
- if (vim == NULL) {
- ASSERT3P(vib, ==, NULL);
- return;
- }
-
- ASSERT3U(vdev_indirect_mapping_object(vim), ==,
- vic->vic_mapping_object);
- ASSERT3U(vdev_indirect_births_object(vib), ==,
- vic->vic_births_object);
-
- (void) printf("indirect births obj %llu:\n",
- (longlong_t)vic->vic_births_object);
- (void) printf(" vib_count = %llu\n",
- (longlong_t)vdev_indirect_births_count(vib));
- for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) {
- vdev_indirect_birth_entry_phys_t *cur_vibe =
- &vib->vib_entries[i];
- (void) printf("\toffset %llx -> txg %llu\n",
- (longlong_t)cur_vibe->vibe_offset,
- (longlong_t)cur_vibe->vibe_phys_birth_txg);
- }
- (void) printf("\n");
-
- (void) printf("indirect mapping obj %llu:\n",
- (longlong_t)vic->vic_mapping_object);
- (void) printf(" vim_max_offset = 0x%llx\n",
- (longlong_t)vdev_indirect_mapping_max_offset(vim));
- (void) printf(" vim_bytes_mapped = 0x%llx\n",
- (longlong_t)vdev_indirect_mapping_bytes_mapped(vim));
- (void) printf(" vim_count = %llu\n",
- (longlong_t)vdev_indirect_mapping_num_entries(vim));
-
- if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3)
- return;
-
- uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim);
-
- for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
- vdev_indirect_mapping_entry_phys_t *vimep =
- &vim->vim_entries[i];
- (void) printf("\t<%llx:%llx:%llx> -> "
- "<%llx:%llx:%llx> (%x obsolete)\n",
- (longlong_t)vd->vdev_id,
- (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
- (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
- (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst),
- (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst),
- (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
- counts[i]);
- }
- (void) printf("\n");
-
- uint64_t obsolete_sm_object = vdev_obsolete_sm_object(vd);
- if (obsolete_sm_object != 0) {
- objset_t *mos = vd->vdev_spa->spa_meta_objset;
- (void) printf("obsolete space map object %llu:\n",
- (u_longlong_t)obsolete_sm_object);
- ASSERT(vd->vdev_obsolete_sm != NULL);
- ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==,
- obsolete_sm_object);
- dump_spacemap(mos, vd->vdev_obsolete_sm);
- (void) printf("\n");
- }
-}
-
-static void
-dump_metaslabs(spa_t *spa)
-{
- vdev_t *vd, *rvd = spa->spa_root_vdev;
- uint64_t m, c = 0, children = rvd->vdev_children;
-
- (void) printf("\nMetaslabs:\n");
-
- if (!dump_opt['d'] && zopt_objects > 0) {
- c = zopt_object[0];
-
- if (c >= children)
- (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
-
- if (zopt_objects > 1) {
- vd = rvd->vdev_child[c];
- print_vdev_metaslab_header(vd);
-
- for (m = 1; m < zopt_objects; m++) {
- if (zopt_object[m] < vd->vdev_ms_count)
- dump_metaslab(
- vd->vdev_ms[zopt_object[m]]);
- else
- (void) fprintf(stderr, "bad metaslab "
- "number %llu\n",
- (u_longlong_t)zopt_object[m]);
- }
- (void) printf("\n");
- return;
- }
- children = c + 1;
- }
- for (; c < children; c++) {
- vd = rvd->vdev_child[c];
- print_vdev_metaslab_header(vd);
-
- print_vdev_indirect(vd);
-
- for (m = 0; m < vd->vdev_ms_count; m++)
- dump_metaslab(vd->vdev_ms[m]);
- (void) printf("\n");
- }
-}
-
-static void
-dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
-{
- const ddt_phys_t *ddp = dde->dde_phys;
- const ddt_key_t *ddk = &dde->dde_key;
- const char *types[4] = { "ditto", "single", "double", "triple" };
- char blkbuf[BP_SPRINTF_LEN];
- blkptr_t blk;
-
- for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
- if (ddp->ddp_phys_birth == 0)
- continue;
- ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
- snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
- (void) printf("index %llx refcnt %llu %s %s\n",
- (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
- types[p], blkbuf);
- }
-}
-
-static void
-dump_dedup_ratio(const ddt_stat_t *dds)
-{
- double rL, rP, rD, D, dedup, compress, copies;
-
- if (dds->dds_blocks == 0)
- return;
-
- rL = (double)dds->dds_ref_lsize;
- rP = (double)dds->dds_ref_psize;
- rD = (double)dds->dds_ref_dsize;
- D = (double)dds->dds_dsize;
-
- dedup = rD / D;
- compress = rL / rP;
- copies = rD / rP;
-
- (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
- "dedup * compress / copies = %.2f\n\n",
- dedup, compress, copies, dedup * compress / copies);
-}
-
-static void
-dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
-{
- char name[DDT_NAMELEN];
- ddt_entry_t dde;
- uint64_t walk = 0;
- dmu_object_info_t doi;
- uint64_t count, dspace, mspace;
- int error;
-
- error = ddt_object_info(ddt, type, class, &doi);
-
- if (error == ENOENT)
- return;
- ASSERT(error == 0);
-
- error = ddt_object_count(ddt, type, class, &count);
- ASSERT(error == 0);
- if (count == 0)
- return;
-
- dspace = doi.doi_physical_blocks_512 << 9;
- mspace = doi.doi_fill_count * doi.doi_data_block_size;
-
- ddt_object_name(ddt, type, class, name);
-
- (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
- name,
- (u_longlong_t)count,
- (u_longlong_t)(dspace / count),
- (u_longlong_t)(mspace / count));
-
- if (dump_opt['D'] < 3)
- return;
-
- zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
-
- if (dump_opt['D'] < 4)
- return;
-
- if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
- return;
-
- (void) printf("%s contents:\n\n", name);
-
- while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
- dump_dde(ddt, &dde, walk);
-
- ASSERT3U(error, ==, ENOENT);
-
- (void) printf("\n");
-}
-
-static void
-dump_all_ddts(spa_t *spa)
-{
- ddt_histogram_t ddh_total;
- ddt_stat_t dds_total;
-
- bzero(&ddh_total, sizeof (ddh_total));
- bzero(&dds_total, sizeof (dds_total));
-
- for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
- ddt_t *ddt = spa->spa_ddt[c];
- for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
- for (enum ddt_class class = 0; class < DDT_CLASSES;
- class++) {
- dump_ddt(ddt, type, class);
- }
- }
- }
-
- ddt_get_dedup_stats(spa, &dds_total);
-
- if (dds_total.dds_blocks == 0) {
- (void) printf("All DDTs are empty\n");
- return;
- }
-
- (void) printf("\n");
-
- if (dump_opt['D'] > 1) {
- (void) printf("DDT histogram (aggregated over all DDTs):\n");
- ddt_get_dedup_histogram(spa, &ddh_total);
- zpool_dump_ddt(&dds_total, &ddh_total);
- }
-
- dump_dedup_ratio(&dds_total);
-}
-
-static void
-dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
-{
- char *prefix = arg;
-
- (void) printf("%s [%llu,%llu) length %llu\n",
- prefix,
- (u_longlong_t)start,
- (u_longlong_t)(start + size),
- (u_longlong_t)(size));
-}
-
-static void
-dump_dtl(vdev_t *vd, int indent)
-{
- spa_t *spa = vd->vdev_spa;
- boolean_t required;
- const char *name[DTL_TYPES] = { "missing", "partial", "scrub",
- "outage" };
- char prefix[256];
-
- spa_vdev_state_enter(spa, SCL_NONE);
- required = vdev_dtl_required(vd);
- (void) spa_vdev_state_exit(spa, NULL, 0);
-
- if (indent == 0)
- (void) printf("\nDirty time logs:\n\n");
-
- (void) printf("\t%*s%s [%s]\n", indent, "",
- vd->vdev_path ? vd->vdev_path :
- vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
- required ? "DTL-required" : "DTL-expendable");
-
- for (int t = 0; t < DTL_TYPES; t++) {
- range_tree_t *rt = vd->vdev_dtl[t];
- if (range_tree_space(rt) == 0)
- continue;
- (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
- indent + 2, "", name[t]);
- range_tree_walk(rt, dump_dtl_seg, prefix);
- if (dump_opt['d'] > 5 && vd->vdev_children == 0)
- dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
- }
-
- for (unsigned c = 0; c < vd->vdev_children; c++)
- dump_dtl(vd->vdev_child[c], indent + 4);
-}
-
-/* from spa_history.c: spa_history_create_obj() */
-#define HIS_BUF_LEN_DEF (128 << 10)
-#define HIS_BUF_LEN_MAX (1 << 30)
-
-static void
-dump_history(spa_t *spa)
-{
- nvlist_t **events = NULL;
- char *buf = NULL;
- uint64_t bufsize = HIS_BUF_LEN_DEF;
- uint64_t resid, len, off = 0;
- uint_t num = 0;
- int error;
- time_t tsec;
- struct tm t;
- char tbuf[30];
- char internalstr[MAXPATHLEN];
-
- if ((buf = malloc(bufsize)) == NULL)
- (void) fprintf(stderr, "Unable to read history: "
- "out of memory\n");
- do {
- len = bufsize;
-
- if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
- (void) fprintf(stderr, "Unable to read history: "
- "error %d\n", error);
- return;
- }
-
- if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
- break;
- off -= resid;
-
- /*
- * If the history block is too big, double the buffer
- * size and try again.
- */
- if (resid == len) {
- free(buf);
- buf = NULL;
-
- bufsize <<= 1;
- if ((bufsize >= HIS_BUF_LEN_MAX) ||
- ((buf = malloc(bufsize)) == NULL)) {
- (void) fprintf(stderr, "Unable to read history: "
- "out of memory\n");
- return;
- }
- }
- } while (len != 0);
- free(buf);
-
- (void) printf("\nHistory:\n");
- for (unsigned i = 0; i < num; i++) {
- uint64_t time, txg, ievent;
- char *cmd, *intstr;
- boolean_t printed = B_FALSE;
-
- if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
- &time) != 0)
- goto next;
- if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
- &cmd) != 0) {
- if (nvlist_lookup_uint64(events[i],
- ZPOOL_HIST_INT_EVENT, &ievent) != 0)
- goto next;
- verify(nvlist_lookup_uint64(events[i],
- ZPOOL_HIST_TXG, &txg) == 0);
- verify(nvlist_lookup_string(events[i],
- ZPOOL_HIST_INT_STR, &intstr) == 0);
- if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
- goto next;
-
- (void) snprintf(internalstr,
- sizeof (internalstr),
- "[internal %s txg:%ju] %s",
- zfs_history_event_names[ievent], (uintmax_t)txg,
- intstr);
- cmd = internalstr;
- }
- tsec = time;
- (void) localtime_r(&tsec, &t);
- (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
- (void) printf("%s %s\n", tbuf, cmd);
- printed = B_TRUE;
-
-next:
- if (dump_opt['h'] > 1) {
- if (!printed)
- (void) printf("unrecognized record:\n");
- dump_nvlist(events[i], 2);
- }
- }
-}
-
-/*ARGSUSED*/
-static void
-dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
-{
-}
-
-static uint64_t
-blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
- const zbookmark_phys_t *zb)
-{
- if (dnp == NULL) {
- ASSERT(zb->zb_level < 0);
- if (zb->zb_object == 0)
- return (zb->zb_blkid);
- return (zb->zb_blkid * BP_GET_LSIZE(bp));
- }
-
- ASSERT(zb->zb_level >= 0);
-
- return ((zb->zb_blkid <<
- (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
- dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
-}
-
-static void
-snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
-{
- const dva_t *dva = bp->blk_dva;
- int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
-
- if (dump_opt['b'] >= 6) {
- snprintf_blkptr(blkbuf, buflen, bp);
- return;
- }
-
- if (BP_IS_EMBEDDED(bp)) {
- (void) sprintf(blkbuf,
- "EMBEDDED et=%u %llxL/%llxP B=%llu",
- (int)BPE_GET_ETYPE(bp),
- (u_longlong_t)BPE_GET_LSIZE(bp),
- (u_longlong_t)BPE_GET_PSIZE(bp),
- (u_longlong_t)bp->blk_birth);
- return;
- }
-
- blkbuf[0] = '\0';
- for (int i = 0; i < ndvas; i++)
- (void) snprintf(blkbuf + strlen(blkbuf),
- buflen - strlen(blkbuf), "%llu:%llx:%llx ",
- (u_longlong_t)DVA_GET_VDEV(&dva[i]),
- (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
- (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
-
- if (BP_IS_HOLE(bp)) {
- (void) snprintf(blkbuf + strlen(blkbuf),
- buflen - strlen(blkbuf),
- "%llxL B=%llu",
- (u_longlong_t)BP_GET_LSIZE(bp),
- (u_longlong_t)bp->blk_birth);
- } else {
- (void) snprintf(blkbuf + strlen(blkbuf),
- buflen - strlen(blkbuf),
- "%llxL/%llxP F=%llu B=%llu/%llu",
- (u_longlong_t)BP_GET_LSIZE(bp),
- (u_longlong_t)BP_GET_PSIZE(bp),
- (u_longlong_t)BP_GET_FILL(bp),
- (u_longlong_t)bp->blk_birth,
- (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
- }
-}
-
-static void
-print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
- const dnode_phys_t *dnp)
-{
- char blkbuf[BP_SPRINTF_LEN];
- int l;
-
- if (!BP_IS_EMBEDDED(bp)) {
- ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
- ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
- }
-
- (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
-
- ASSERT(zb->zb_level >= 0);
-
- for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
- if (l == zb->zb_level) {
- (void) printf("L%llx", (u_longlong_t)zb->zb_level);
- } else {
- (void) printf(" ");
- }
- }
-
- snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
- (void) printf("%s\n", blkbuf);
-}
-
-static int
-visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
- blkptr_t *bp, const zbookmark_phys_t *zb)
-{
- int err = 0;
-
- if (bp->blk_birth == 0)
- return (0);
-
- print_indirect(bp, zb, dnp);
-
- if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
- arc_flags_t flags = ARC_FLAG_WAIT;
- int i;
- blkptr_t *cbp;
- int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
- arc_buf_t *buf;
- uint64_t fill = 0;
-
- err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
- ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
- if (err)
- return (err);
- ASSERT(buf->b_data);
-
- /* recursively visit blocks below this */
- cbp = buf->b_data;
- for (i = 0; i < epb; i++, cbp++) {
- zbookmark_phys_t czb;
-
- SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
- zb->zb_level - 1,
- zb->zb_blkid * epb + i);
- err = visit_indirect(spa, dnp, cbp, &czb);
- if (err)
- break;
- fill += BP_GET_FILL(cbp);
- }
- if (!err)
- ASSERT3U(fill, ==, BP_GET_FILL(bp));
- arc_buf_destroy(buf, &buf);
- }
-
- return (err);
-}
-
-/*ARGSUSED*/
-static void
-dump_indirect(dnode_t *dn)
-{
- dnode_phys_t *dnp = dn->dn_phys;
- int j;
- zbookmark_phys_t czb;
-
- (void) printf("Indirect blocks:\n");
-
- SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
- dn->dn_object, dnp->dn_nlevels - 1, 0);
- for (j = 0; j < dnp->dn_nblkptr; j++) {
- czb.zb_blkid = j;
- (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
- &dnp->dn_blkptr[j], &czb);
- }
-
- (void) printf("\n");
-}
-
-/*ARGSUSED*/
-static void
-dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
-{
- dsl_dir_phys_t *dd = data;
- time_t crtime;
- char nice[32];
-
- /* make sure nicenum has enough space */
- CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ);
-
- if (dd == NULL)
- return;
-
- ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
-
- crtime = dd->dd_creation_time;
- (void) printf("\t\tcreation_time = %s", ctime(&crtime));
- (void) printf("\t\thead_dataset_obj = %llu\n",
- (u_longlong_t)dd->dd_head_dataset_obj);
- (void) printf("\t\tparent_dir_obj = %llu\n",
- (u_longlong_t)dd->dd_parent_obj);
- (void) printf("\t\torigin_obj = %llu\n",
- (u_longlong_t)dd->dd_origin_obj);
- (void) printf("\t\tchild_dir_zapobj = %llu\n",
- (u_longlong_t)dd->dd_child_dir_zapobj);
- zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice));
- (void) printf("\t\tused_bytes = %s\n", nice);
- zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice));
- (void) printf("\t\tcompressed_bytes = %s\n", nice);
- zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice));
- (void) printf("\t\tuncompressed_bytes = %s\n", nice);
- zdb_nicenum(dd->dd_quota, nice, sizeof (nice));
- (void) printf("\t\tquota = %s\n", nice);
- zdb_nicenum(dd->dd_reserved, nice, sizeof (nice));
- (void) printf("\t\treserved = %s\n", nice);
- (void) printf("\t\tprops_zapobj = %llu\n",
- (u_longlong_t)dd->dd_props_zapobj);
- (void) printf("\t\tdeleg_zapobj = %llu\n",
- (u_longlong_t)dd->dd_deleg_zapobj);
- (void) printf("\t\tflags = %llx\n",
- (u_longlong_t)dd->dd_flags);
-
-#define DO(which) \
- zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \
- sizeof (nice)); \
- (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
- DO(HEAD);
- DO(SNAP);
- DO(CHILD);
- DO(CHILD_RSRV);
- DO(REFRSRV);
-#undef DO
- (void) printf("\t\tclones = %llu\n",
- (u_longlong_t)dd->dd_clones);
-}
-
-/*ARGSUSED*/
-static void
-dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
-{
- dsl_dataset_phys_t *ds = data;
- time_t crtime;
- char used[32], compressed[32], uncompressed[32], unique[32];
- char blkbuf[BP_SPRINTF_LEN];
-
- /* make sure nicenum has enough space */
- CTASSERT(sizeof (used) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ);
-
- if (ds == NULL)
- return;
-
- ASSERT(size == sizeof (*ds));
- crtime = ds->ds_creation_time;
- zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used));
- zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed));
- zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed,
- sizeof (uncompressed));
- zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique));
- snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
-
- (void) printf("\t\tdir_obj = %llu\n",
- (u_longlong_t)ds->ds_dir_obj);
- (void) printf("\t\tprev_snap_obj = %llu\n",
- (u_longlong_t)ds->ds_prev_snap_obj);
- (void) printf("\t\tprev_snap_txg = %llu\n",
- (u_longlong_t)ds->ds_prev_snap_txg);
- (void) printf("\t\tnext_snap_obj = %llu\n",
- (u_longlong_t)ds->ds_next_snap_obj);
- (void) printf("\t\tsnapnames_zapobj = %llu\n",
- (u_longlong_t)ds->ds_snapnames_zapobj);
- (void) printf("\t\tnum_children = %llu\n",
- (u_longlong_t)ds->ds_num_children);
- (void) printf("\t\tuserrefs_obj = %llu\n",
- (u_longlong_t)ds->ds_userrefs_obj);
- (void) printf("\t\tcreation_time = %s", ctime(&crtime));
- (void) printf("\t\tcreation_txg = %llu\n",
- (u_longlong_t)ds->ds_creation_txg);
- (void) printf("\t\tdeadlist_obj = %llu\n",
- (u_longlong_t)ds->ds_deadlist_obj);
- (void) printf("\t\tused_bytes = %s\n", used);
- (void) printf("\t\tcompressed_bytes = %s\n", compressed);
- (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
- (void) printf("\t\tunique = %s\n", unique);
- (void) printf("\t\tfsid_guid = %llu\n",
- (u_longlong_t)ds->ds_fsid_guid);
- (void) printf("\t\tguid = %llu\n",
- (u_longlong_t)ds->ds_guid);
- (void) printf("\t\tflags = %llx\n",
- (u_longlong_t)ds->ds_flags);
- (void) printf("\t\tnext_clones_obj = %llu\n",
- (u_longlong_t)ds->ds_next_clones_obj);
- (void) printf("\t\tprops_obj = %llu\n",
- (u_longlong_t)ds->ds_props_obj);
- (void) printf("\t\tbp = %s\n", blkbuf);
-}
-
-/* ARGSUSED */
-static int
-dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
-{
- char blkbuf[BP_SPRINTF_LEN];
-
- if (bp->blk_birth != 0) {
- snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
- (void) printf("\t%s\n", blkbuf);
- }
- return (0);
-}
-
-static void
-dump_bptree(objset_t *os, uint64_t obj, const char *name)
-{
- char bytes[32];
- bptree_phys_t *bt;
- dmu_buf_t *db;
-
- /* make sure nicenum has enough space */
- CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
-
- if (dump_opt['d'] < 3)
- return;
-
- VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
- bt = db->db_data;
- zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes));
- (void) printf("\n %s: %llu datasets, %s\n",
- name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
- dmu_buf_rele(db, FTAG);
-
- if (dump_opt['d'] < 5)
- return;
-
- (void) printf("\n");
-
- (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
-}
-
-/* ARGSUSED */
-static int
-dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
-{
- char blkbuf[BP_SPRINTF_LEN];
-
- ASSERT(bp->blk_birth != 0);
- snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
- (void) printf("\t%s\n", blkbuf);
- return (0);
-}
-
-static void
-dump_full_bpobj(bpobj_t *bpo, const char *name, int indent)
-{
- char bytes[32];
- char comp[32];
- char uncomp[32];
-
- /* make sure nicenum has enough space */
- CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
-
- if (dump_opt['d'] < 3)
- return;
-
- zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes));
- if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
- zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp));
- zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp));
- (void) printf(" %*s: object %llu, %llu local blkptrs, "
- "%llu subobjs in object %llu, %s (%s/%s comp)\n",
- indent * 8, name,
- (u_longlong_t)bpo->bpo_object,
- (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
- (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
- (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
- bytes, comp, uncomp);
-
- for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
- uint64_t subobj;
- bpobj_t subbpo;
- int error;
- VERIFY0(dmu_read(bpo->bpo_os,
- bpo->bpo_phys->bpo_subobjs,
- i * sizeof (subobj), sizeof (subobj), &subobj, 0));
- error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
- if (error != 0) {
- (void) printf("ERROR %u while trying to open "
- "subobj id %llu\n",
- error, (u_longlong_t)subobj);
- continue;
- }
- dump_full_bpobj(&subbpo, "subobj", indent + 1);
- bpobj_close(&subbpo);
- }
- } else {
- (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
- indent * 8, name,
- (u_longlong_t)bpo->bpo_object,
- (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
- bytes);
- }
-
- if (dump_opt['d'] < 5)
- return;
-
-
- if (indent == 0) {
- (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
- (void) printf("\n");
- }
-}
-
-static void
-bpobj_count_refd(bpobj_t *bpo)
-{
- mos_obj_refd(bpo->bpo_object);
-
- if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
- mos_obj_refd(bpo->bpo_phys->bpo_subobjs);
- for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
- uint64_t subobj;
- bpobj_t subbpo;
- int error;
- VERIFY0(dmu_read(bpo->bpo_os,
- bpo->bpo_phys->bpo_subobjs,
- i * sizeof (subobj), sizeof (subobj), &subobj, 0));
- error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
- if (error != 0) {
- (void) printf("ERROR %u while trying to open "
- "subobj id %llu\n",
- error, (u_longlong_t)subobj);
- continue;
- }
- bpobj_count_refd(&subbpo);
- bpobj_close(&subbpo);
- }
- }
-}
-
-static void
-dump_deadlist(dsl_deadlist_t *dl)
-{
- dsl_deadlist_entry_t *dle;
- uint64_t unused;
- char bytes[32];
- char comp[32];
- char uncomp[32];
- uint64_t empty_bpobj =
- dmu_objset_spa(dl->dl_os)->spa_dsl_pool->dp_empty_bpobj;
-
- /* force the tree to be loaded */
- dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
-
- if (dl->dl_oldfmt) {
- if (dl->dl_bpobj.bpo_object != empty_bpobj)
- bpobj_count_refd(&dl->dl_bpobj);
- } else {
- mos_obj_refd(dl->dl_object);
- for (dle = avl_first(&dl->dl_tree); dle;
- dle = AVL_NEXT(&dl->dl_tree, dle)) {
- if (dle->dle_bpobj.bpo_object != empty_bpobj)
- bpobj_count_refd(&dle->dle_bpobj);
- }
- }
-
- /* make sure nicenum has enough space */
- CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
-
- if (dump_opt['d'] < 3)
- return;
-
- if (dl->dl_oldfmt) {
- dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
- return;
- }
-
- zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes));
- zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp));
- zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp));
- (void) printf("\n Deadlist: %s (%s/%s comp)\n",
- bytes, comp, uncomp);
-
- if (dump_opt['d'] < 4)
- return;
-
- (void) printf("\n");
-
- for (dle = avl_first(&dl->dl_tree); dle;
- dle = AVL_NEXT(&dl->dl_tree, dle)) {
- if (dump_opt['d'] >= 5) {
- char buf[128];
- (void) snprintf(buf, sizeof (buf),
- "mintxg %llu -> obj %llu",
- (longlong_t)dle->dle_mintxg,
- (longlong_t)dle->dle_bpobj.bpo_object);
- dump_full_bpobj(&dle->dle_bpobj, buf, 0);
- } else {
- (void) printf("mintxg %llu -> obj %llu\n",
- (longlong_t)dle->dle_mintxg,
- (longlong_t)dle->dle_bpobj.bpo_object);
- }
- }
-}
-
-static avl_tree_t idx_tree;
-static avl_tree_t domain_tree;
-static boolean_t fuid_table_loaded;
-static objset_t *sa_os = NULL;
-static sa_attr_type_t *sa_attr_table = NULL;
-
-static int
-open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
-{
- int err;
- uint64_t sa_attrs = 0;
- uint64_t version = 0;
-
- VERIFY3P(sa_os, ==, NULL);
- err = dmu_objset_own(path, type, B_TRUE, tag, osp);
- if (err != 0) {
- (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
- strerror(err));
- return (err);
- }
-
- if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
- (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
- 8, 1, &version);
- if (version >= ZPL_VERSION_SA) {
- (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
- 8, 1, &sa_attrs);
- }
- err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
- &sa_attr_table);
- if (err != 0) {
- (void) fprintf(stderr, "sa_setup failed: %s\n",
- strerror(err));
- dmu_objset_disown(*osp, tag);
- *osp = NULL;
- }
- }
- sa_os = *osp;
-
- return (0);
-}
-
-static void
-close_objset(objset_t *os, void *tag)
-{
- VERIFY3P(os, ==, sa_os);
- if (os->os_sa != NULL)
- sa_tear_down(os);
- dmu_objset_disown(os, tag);
- sa_attr_table = NULL;
- sa_os = NULL;
-}
-
-static void
-fuid_table_destroy()
-{
- if (fuid_table_loaded) {
- zfs_fuid_table_destroy(&idx_tree, &domain_tree);
- fuid_table_loaded = B_FALSE;
- }
-}
-
-/*
- * print uid or gid information.
- * For normal POSIX id just the id is printed in decimal format.
- * For CIFS files with FUID the fuid is printed in hex followed by
- * the domain-rid string.
- */
-static void
-print_idstr(uint64_t id, const char *id_type)
-{
- if (FUID_INDEX(id)) {
- char *domain;
-
- domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
- (void) printf("\t%s %llx [%s-%d]\n", id_type,
- (u_longlong_t)id, domain, (int)FUID_RID(id));
- } else {
- (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
- }
-
-}
-
-static void
-dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
-{
- uint32_t uid_idx, gid_idx;
-
- uid_idx = FUID_INDEX(uid);
- gid_idx = FUID_INDEX(gid);
-
- /* Load domain table, if not already loaded */
- if (!fuid_table_loaded && (uid_idx || gid_idx)) {
- uint64_t fuid_obj;
-
- /* first find the fuid object. It lives in the master node */
- VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
- 8, 1, &fuid_obj) == 0);
- zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
- (void) zfs_fuid_table_load(os, fuid_obj,
- &idx_tree, &domain_tree);
- fuid_table_loaded = B_TRUE;
- }
-
- print_idstr(uid, "uid");
- print_idstr(gid, "gid");
-}
-
-/*ARGSUSED*/
-static void
-dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
-{
- char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
- sa_handle_t *hdl;
- uint64_t xattr, rdev, gen;
- uint64_t uid, gid, mode, fsize, parent, links;
- uint64_t pflags;
- uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
- time_t z_crtime, z_atime, z_mtime, z_ctime;
- sa_bulk_attr_t bulk[12];
- int idx = 0;
- int error;
-
- VERIFY3P(os, ==, sa_os);
- if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
- (void) printf("Failed to get handle for SA znode\n");
- return;
- }
-
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
- &links, 8);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
- &mode, 8);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
- NULL, &parent, 8);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
- &fsize, 8);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
- acctm, 16);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
- modtm, 16);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
- crtm, 16);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
- chgtm, 16);
- SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
- &pflags, 8);
-
- if (sa_bulk_lookup(hdl, bulk, idx)) {
- (void) sa_handle_destroy(hdl);
- return;
- }
-
- z_crtime = (time_t)crtm[0];
- z_atime = (time_t)acctm[0];
- z_mtime = (time_t)modtm[0];
- z_ctime = (time_t)chgtm[0];
-
- if (dump_opt['d'] > 4) {
- error = zfs_obj_to_path(os, object, path, sizeof (path));
- if (error == ESTALE) {
- (void) snprintf(path, sizeof (path), "on delete queue");
- } else if (error != 0) {
- leaked_objects++;
- (void) snprintf(path, sizeof (path),
- "path not found, possibly leaked");
- }
- (void) printf("\tpath %s\n", path);
- }
- dump_uidgid(os, uid, gid);
- (void) printf("\tatime %s", ctime(&z_atime));
- (void) printf("\tmtime %s", ctime(&z_mtime));
- (void) printf("\tctime %s", ctime(&z_ctime));
- (void) printf("\tcrtime %s", ctime(&z_crtime));
- (void) printf("\tgen %llu\n", (u_longlong_t)gen);
- (void) printf("\tmode %llo\n", (u_longlong_t)mode);
- (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
- (void) printf("\tparent %llu\n", (u_longlong_t)parent);
- (void) printf("\tlinks %llu\n", (u_longlong_t)links);
- (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
- if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
- sizeof (uint64_t)) == 0)
- (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
- if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
- sizeof (uint64_t)) == 0)
- (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
- sa_handle_destroy(hdl);
-}
-
-/*ARGSUSED*/
-static void
-dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
-{
-}
-
-/*ARGSUSED*/
-static void
-dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
-{
-}
-
-static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
- dump_none, /* unallocated */
- dump_zap, /* object directory */
- dump_uint64, /* object array */
- dump_none, /* packed nvlist */
- dump_packed_nvlist, /* packed nvlist size */
- dump_none, /* bpobj */
- dump_bpobj, /* bpobj header */
- dump_none, /* SPA space map header */
- dump_none, /* SPA space map */
- dump_none, /* ZIL intent log */
- dump_dnode, /* DMU dnode */
- dump_dmu_objset, /* DMU objset */
- dump_dsl_dir, /* DSL directory */
- dump_zap, /* DSL directory child map */
- dump_zap, /* DSL dataset snap map */
- dump_zap, /* DSL props */
- dump_dsl_dataset, /* DSL dataset */
- dump_znode, /* ZFS znode */
- dump_acl, /* ZFS V0 ACL */
- dump_uint8, /* ZFS plain file */
- dump_zpldir, /* ZFS directory */
- dump_zap, /* ZFS master node */
- dump_zap, /* ZFS delete queue */
- dump_uint8, /* zvol object */
- dump_zap, /* zvol prop */
- dump_uint8, /* other uint8[] */
- dump_uint64, /* other uint64[] */
- dump_zap, /* other ZAP */
- dump_zap, /* persistent error log */
- dump_uint8, /* SPA history */
- dump_history_offsets, /* SPA history offsets */
- dump_zap, /* Pool properties */
- dump_zap, /* DSL permissions */
- dump_acl, /* ZFS ACL */
- dump_uint8, /* ZFS SYSACL */
- dump_none, /* FUID nvlist */
- dump_packed_nvlist, /* FUID nvlist size */
- dump_zap, /* DSL dataset next clones */
- dump_zap, /* DSL scrub queue */
- dump_zap, /* ZFS user/group used */
- dump_zap, /* ZFS user/group quota */
- dump_zap, /* snapshot refcount tags */
- dump_ddt_zap, /* DDT ZAP object */
- dump_zap, /* DDT statistics */
- dump_znode, /* SA object */
- dump_zap, /* SA Master Node */
- dump_sa_attrs, /* SA attribute registration */
- dump_sa_layouts, /* SA attribute layouts */
- dump_zap, /* DSL scrub translations */
- dump_none, /* fake dedup BP */
- dump_zap, /* deadlist */
- dump_none, /* deadlist hdr */
- dump_zap, /* dsl clones */
- dump_bpobj_subobjs, /* bpobj subobjs */
- dump_unknown, /* Unknown type, must be last */
-};
-
-static void
-dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header,
- uint64_t *dnode_slots_used)
-{
- dmu_buf_t *db = NULL;
- dmu_object_info_t doi;
- dnode_t *dn;
- void *bonus = NULL;
- size_t bsize = 0;
- char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32];
- char bonus_size[32];
- char aux[50];
- int error;
-
- /* make sure nicenum has enough space */
- CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
-
- if (*print_header) {
- (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n",
- "Object", "lvl", "iblk", "dblk", "dsize", "dnsize",
- "lsize", "%full", "type");
- *print_header = 0;
- }
-
- if (object == 0) {
- dn = DMU_META_DNODE(os);
- } else {
- error = dmu_bonus_hold(os, object, FTAG, &db);
- if (error)
- fatal("dmu_bonus_hold(%llu) failed, errno %u",
- object, error);
- bonus = db->db_data;
- bsize = db->db_size;
- dn = DB_DNODE((dmu_buf_impl_t *)db);
- }
- dmu_object_info_from_dnode(dn, &doi);
-
- if (dnode_slots_used != NULL)
- *dnode_slots_used = doi.doi_dnodesize / DNODE_MIN_SIZE;
-
- zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
- zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
- zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
- zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
- zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
- zdb_nicenum(doi.doi_dnodesize, dnsize, sizeof (dnsize));
- (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
- doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
- doi.doi_max_offset);
-
- aux[0] = '\0';
-
- if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
- (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
- ZDB_CHECKSUM_NAME(doi.doi_checksum));
- }
-
- if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
- (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
- ZDB_COMPRESS_NAME(doi.doi_compress));
- }
-
- (void) printf("%10" PRIu64
- " %3u %5s %5s %5s %5s %5s %6s %s%s\n",
- object, doi.doi_indirection, iblk, dblk,
- asize, dnsize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
-
- if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
- (void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n",
- "", "", "", "", "", "", bonus_size, "bonus",
- ZDB_OT_NAME(doi.doi_bonus_type));
- }
-
- if (verbosity >= 4) {
- (void) printf("\tdnode flags: %s%s%s\n",
- (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
- "USED_BYTES " : "",
- (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
- "USERUSED_ACCOUNTED " : "",
- (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
- "SPILL_BLKPTR" : "");
- (void) printf("\tdnode maxblkid: %llu\n",
- (longlong_t)dn->dn_phys->dn_maxblkid);
-
- object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
- bonus, bsize);
- object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
- *print_header = 1;
- }
-
- if (verbosity >= 5)
- dump_indirect(dn);
-
- if (verbosity >= 5) {
- /*
- * Report the list of segments that comprise the object.
- */
- uint64_t start = 0;
- uint64_t end;
- uint64_t blkfill = 1;
- int minlvl = 1;
-
- if (dn->dn_type == DMU_OT_DNODE) {
- minlvl = 0;
- blkfill = DNODES_PER_BLOCK;
- }
-
- for (;;) {
- char segsize[32];
- /* make sure nicenum has enough space */
- CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ);
- error = dnode_next_offset(dn,
- 0, &start, minlvl, blkfill, 0);
- if (error)
- break;
- end = start;
- error = dnode_next_offset(dn,
- DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
- zdb_nicenum(end - start, segsize, sizeof (segsize));
- (void) printf("\t\tsegment [%016llx, %016llx)"
- " size %5s\n", (u_longlong_t)start,
- (u_longlong_t)end, segsize);
- if (error)
- break;
- start = end;
- }
- }
-
- if (db != NULL)
- dmu_buf_rele(db, FTAG);
-}
-
-static void
-count_dir_mos_objects(dsl_dir_t *dd)
-{
- mos_obj_refd(dd->dd_object);
- mos_obj_refd(dsl_dir_phys(dd)->dd_child_dir_zapobj);
- mos_obj_refd(dsl_dir_phys(dd)->dd_deleg_zapobj);
- mos_obj_refd(dsl_dir_phys(dd)->dd_props_zapobj);
- mos_obj_refd(dsl_dir_phys(dd)->dd_clones);
-}
-
-static void
-count_ds_mos_objects(dsl_dataset_t *ds)
-{
- mos_obj_refd(ds->ds_object);
- mos_obj_refd(dsl_dataset_phys(ds)->ds_next_clones_obj);
- mos_obj_refd(dsl_dataset_phys(ds)->ds_props_obj);
- mos_obj_refd(dsl_dataset_phys(ds)->ds_userrefs_obj);
- mos_obj_refd(dsl_dataset_phys(ds)->ds_snapnames_zapobj);
-
- if (!dsl_dataset_is_snapshot(ds)) {
- count_dir_mos_objects(ds->ds_dir);
- }
-}
-
-static const char *objset_types[DMU_OST_NUMTYPES] = {
- "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
-
-static void
-dump_dir(objset_t *os)
-{
- dmu_objset_stats_t dds;
- uint64_t object, object_count;
- uint64_t refdbytes, usedobjs, scratch;
- char numbuf[32];
- char blkbuf[BP_SPRINTF_LEN + 20];
- char osname[ZFS_MAX_DATASET_NAME_LEN];
- const char *type = "UNKNOWN";
- int verbosity = dump_opt['d'];
- int print_header = 1;
- unsigned i;
- int error;
- uint64_t total_slots_used = 0;
- uint64_t max_slot_used = 0;
- uint64_t dnode_slots;
-
- /* make sure nicenum has enough space */
- CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
-
- dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
- dmu_objset_fast_stat(os, &dds);
- dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
-
- if (dds.dds_type < DMU_OST_NUMTYPES)
- type = objset_types[dds.dds_type];
-
- if (dds.dds_type == DMU_OST_META) {
- dds.dds_creation_txg = TXG_INITIAL;
- usedobjs = BP_GET_FILL(os->os_rootbp);
- refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
- dd_used_bytes;
- } else {
- dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
- }
-
- ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
-
- zdb_nicenum(refdbytes, numbuf, sizeof (numbuf));
-
- if (verbosity >= 4) {
- (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
- (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
- sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
- } else {
- blkbuf[0] = '\0';
- }
-
- dmu_objset_name(os, osname);
-
- (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
- "%s, %llu objects%s%s\n",
- osname, type, (u_longlong_t)dmu_objset_id(os),
- (u_longlong_t)dds.dds_creation_txg,
- numbuf, (u_longlong_t)usedobjs, blkbuf,
- (dds.dds_inconsistent) ? " (inconsistent)" : "");
-
- if (zopt_objects != 0) {
- for (i = 0; i < zopt_objects; i++)
- dump_object(os, zopt_object[i], verbosity,
- &print_header, NULL);
- (void) printf("\n");
- return;
- }
-
- if (dump_opt['i'] != 0 || verbosity >= 2)
- dump_intent_log(dmu_objset_zil(os));
-
- if (dmu_objset_ds(os) != NULL) {
- dsl_dataset_t *ds = dmu_objset_ds(os);
- dump_deadlist(&ds->ds_deadlist);
-
- if (dsl_dataset_remap_deadlist_exists(ds)) {
- (void) printf("ds_remap_deadlist:\n");
- dump_deadlist(&ds->ds_remap_deadlist);
- }
- count_ds_mos_objects(ds);
- }
-
- if (verbosity < 2)
- return;
-
- if (BP_IS_HOLE(os->os_rootbp))
- return;
-
- dump_object(os, 0, verbosity, &print_header, NULL);
- object_count = 0;
- if (DMU_USERUSED_DNODE(os) != NULL &&
- DMU_USERUSED_DNODE(os)->dn_type != 0) {
- dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header,
- NULL);
- dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header,
- NULL);
- }
-
- object = 0;
- while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
- dump_object(os, object, verbosity, &print_header, &dnode_slots);
- object_count++;
- total_slots_used += dnode_slots;
- max_slot_used = object + dnode_slots - 1;
- }
-
- (void) printf("\n");
-
- (void) printf(" Dnode slots:\n");
- (void) printf("\tTotal used: %10llu\n",
- (u_longlong_t)total_slots_used);
- (void) printf("\tMax used: %10llu\n",
- (u_longlong_t)max_slot_used);
- (void) printf("\tPercent empty: %10lf\n",
- (double)(max_slot_used - total_slots_used)*100 /
- (double)max_slot_used);
-
- (void) printf("\n");
-
- if (error != ESRCH) {
- (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
- abort();
- }
-
- ASSERT3U(object_count, ==, usedobjs);
-
- if (leaked_objects != 0) {
- (void) printf("%d potentially leaked objects detected\n",
- leaked_objects);
- leaked_objects = 0;
- }
-}
-
-static void
-dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
-{
- time_t timestamp = ub->ub_timestamp;
-
- (void) printf("%s", header ? header : "");
- (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
- (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
- (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
- (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
- (void) printf("\ttimestamp = %llu UTC = %s",
- (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
-
- (void) printf("\tmmp_magic = %016llx\n",
- (u_longlong_t)ub->ub_mmp_magic);
- if (MMP_VALID(ub)) {
- (void) printf("\tmmp_delay = %0llu\n",
- (u_longlong_t)ub->ub_mmp_delay);
- if (MMP_SEQ_VALID(ub))
- (void) printf("\tmmp_seq = %u\n",
- (unsigned int) MMP_SEQ(ub));
- if (MMP_FAIL_INT_VALID(ub))
- (void) printf("\tmmp_fail = %u\n",
- (unsigned int) MMP_FAIL_INT(ub));
- if (MMP_INTERVAL_VALID(ub))
- (void) printf("\tmmp_write = %u\n",
- (unsigned int) MMP_INTERVAL(ub));
- /* After MMP_* to make summarize_uberblock_mmp cleaner */
- (void) printf("\tmmp_valid = %x\n",
- (unsigned int) ub->ub_mmp_config & 0xFF);
- }
-
- if (dump_opt['u'] >= 3) {
- char blkbuf[BP_SPRINTF_LEN];
- snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
- (void) printf("\trootbp = %s\n", blkbuf);
- }
- (void) printf("\tcheckpoint_txg = %llu\n",
- (u_longlong_t)ub->ub_checkpoint_txg);
- (void) printf("%s", footer ? footer : "");
-}
-
-static void
-dump_config(spa_t *spa)
-{
- dmu_buf_t *db;
- size_t nvsize = 0;
- int error = 0;
-
-
- error = dmu_bonus_hold(spa->spa_meta_objset,
- spa->spa_config_object, FTAG, &db);
-
- if (error == 0) {
- nvsize = *(uint64_t *)db->db_data;
- dmu_buf_rele(db, FTAG);
-
- (void) printf("\nMOS Configuration:\n");
- dump_packed_nvlist(spa->spa_meta_objset,
- spa->spa_config_object, (void *)&nvsize, 1);
- } else {
- (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
- (u_longlong_t)spa->spa_config_object, error);
- }
-}
-
-static void
-dump_cachefile(const char *cachefile)
-{
- int fd;
- struct stat64 statbuf;
- char *buf;
- nvlist_t *config;
-
- if ((fd = open64(cachefile, O_RDONLY)) < 0) {
- (void) fprintf(stderr, "cannot open '%s': %s\n", cachefile,
- strerror(errno));
- exit(1);
- }
-
- if (fstat64(fd, &statbuf) != 0) {
- (void) fprintf(stderr, "failed to stat '%s': %s\n", cachefile,
- strerror(errno));
- exit(1);
- }
-
- if ((buf = malloc(statbuf.st_size)) == NULL) {
- (void) fprintf(stderr, "failed to allocate %llu bytes\n",
- (u_longlong_t)statbuf.st_size);
- exit(1);
- }
-
- if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
- (void) fprintf(stderr, "failed to read %llu bytes\n",
- (u_longlong_t)statbuf.st_size);
- exit(1);
- }
-
- (void) close(fd);
-
- if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
- (void) fprintf(stderr, "failed to unpack nvlist\n");
- exit(1);
- }
-
- free(buf);
-
- dump_nvlist(config, 0);
-
- nvlist_free(config);
-}
-
-#define ZDB_MAX_UB_HEADER_SIZE 32
-
-static void
-dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
-{
- vdev_t vd;
- vdev_t *vdp = &vd;
- char header[ZDB_MAX_UB_HEADER_SIZE];
-
- vd.vdev_ashift = ashift;
- vdp->vdev_top = vdp;
-
- for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
- uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
- uberblock_t *ub = (void *)((char *)lbl + uoff);
-
- if (uberblock_verify(ub))
- continue;
-
- if ((dump_opt['u'] < 4) &&
- (ub->ub_mmp_magic == MMP_MAGIC) && ub->ub_mmp_delay &&
- (i >= VDEV_UBERBLOCK_COUNT(&vd) - MMP_BLOCKS_PER_LABEL))
- continue;
-
- (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
- "Uberblock[%d]\n", i);
- dump_uberblock(ub, header, "");
- }
-}
-
-static char curpath[PATH_MAX];
-
-/*
- * Iterate through the path components, recursively passing
- * current one's obj and remaining path until we find the obj
- * for the last one.
- */
-static int
-dump_path_impl(objset_t *os, uint64_t obj, char *name)
-{
- int err;
- int header = 1;
- uint64_t child_obj;
- char *s;
- dmu_buf_t *db;
- dmu_object_info_t doi;
-
- if ((s = strchr(name, '/')) != NULL)
- *s = '\0';
- err = zap_lookup(os, obj, name, 8, 1, &child_obj);
-
- (void) strlcat(curpath, name, sizeof (curpath));
-
- if (err != 0) {
- (void) fprintf(stderr, "failed to lookup %s: %s\n",
- curpath, strerror(err));
- return (err);
- }
-
- child_obj = ZFS_DIRENT_OBJ(child_obj);
- err = sa_buf_hold(os, child_obj, FTAG, &db);
- if (err != 0) {
- (void) fprintf(stderr,
- "failed to get SA dbuf for obj %llu: %s\n",
- (u_longlong_t)child_obj, strerror(err));
- return (EINVAL);
- }
- dmu_object_info_from_db(db, &doi);
- sa_buf_rele(db, FTAG);
-
- if (doi.doi_bonus_type != DMU_OT_SA &&
- doi.doi_bonus_type != DMU_OT_ZNODE) {
- (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
- doi.doi_bonus_type, (u_longlong_t)child_obj);
- return (EINVAL);
- }
-
- if (dump_opt['v'] > 6) {
- (void) printf("obj=%llu %s type=%d bonustype=%d\n",
- (u_longlong_t)child_obj, curpath, doi.doi_type,
- doi.doi_bonus_type);
- }
-
- (void) strlcat(curpath, "/", sizeof (curpath));
-
- switch (doi.doi_type) {
- case DMU_OT_DIRECTORY_CONTENTS:
- if (s != NULL && *(s + 1) != '\0')
- return (dump_path_impl(os, child_obj, s + 1));
- /*FALLTHROUGH*/
- case DMU_OT_PLAIN_FILE_CONTENTS:
- dump_object(os, child_obj, dump_opt['v'], &header, NULL);
- return (0);
- default:
- (void) fprintf(stderr, "object %llu has non-file/directory "
- "type %d\n", (u_longlong_t)obj, doi.doi_type);
- break;
- }
-
- return (EINVAL);
-}
-
-/*
- * Dump the blocks for the object specified by path inside the dataset.
- */
-static int
-dump_path(char *ds, char *path)
-{
- int err;
- objset_t *os;
- uint64_t root_obj;
-
- err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
- if (err != 0)
- return (err);
-
- err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
- if (err != 0) {
- (void) fprintf(stderr, "can't lookup root znode: %s\n",
- strerror(err));
- dmu_objset_disown(os, FTAG);
- return (EINVAL);
- }
-
- (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
-
- err = dump_path_impl(os, root_obj, path);
-
- close_objset(os, FTAG);
- return (err);
-}
-
-static int
-dump_label(const char *dev)
-{
- int fd;
- vdev_label_t label;
- char path[MAXPATHLEN];
- char *buf = label.vl_vdev_phys.vp_nvlist;
- size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
- struct stat64 statbuf;
- uint64_t psize, ashift;
- boolean_t label_found = B_FALSE;
-
- (void) strlcpy(path, dev, sizeof (path));
- if (dev[0] == '/') {
- if (strncmp(dev, ZFS_DISK_ROOTD,
- strlen(ZFS_DISK_ROOTD)) == 0) {
- (void) snprintf(path, sizeof (path), "%s%s",
- ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD));
- }
- } else if (stat64(path, &statbuf) != 0) {
- char *s;
-
- (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD,
- dev);
- if (((s = strrchr(dev, 's')) == NULL &&
- (s = strchr(dev, 'p')) == NULL) ||
- !isdigit(*(s + 1)))
- (void) strlcat(path, "s0", sizeof (path));
- }
-
- if ((fd = open64(path, O_RDONLY)) < 0) {
- (void) fprintf(stderr, "cannot open '%s': %s\n", path,
- strerror(errno));
- exit(1);
- }
-
- if (fstat64(fd, &statbuf) != 0) {
- (void) fprintf(stderr, "failed to stat '%s': %s\n", path,
- strerror(errno));
- (void) close(fd);
- exit(1);
- }
-
- if (S_ISBLK(statbuf.st_mode)) {
- (void) fprintf(stderr,
- "cannot use '%s': character device required\n", path);
- (void) close(fd);
- exit(1);
- }
-
- psize = statbuf.st_size;
- psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
-
- for (int l = 0; l < VDEV_LABELS; l++) {
- nvlist_t *config = NULL;
-
- if (!dump_opt['q']) {
- (void) printf("------------------------------------\n");
- (void) printf("LABEL %d\n", l);
- (void) printf("------------------------------------\n");
- }
-
- if (pread64(fd, &label, sizeof (label),
- vdev_label_offset(psize, l, 0)) != sizeof (label)) {
- if (!dump_opt['q'])
- (void) printf("failed to read label %d\n", l);
- continue;
- }
-
- if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
- if (!dump_opt['q'])
- (void) printf("failed to unpack label %d\n", l);
- ashift = SPA_MINBLOCKSHIFT;
- } else {
- nvlist_t *vdev_tree = NULL;
-
- if (!dump_opt['q'])
- dump_nvlist(config, 4);
- if ((nvlist_lookup_nvlist(config,
- ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
- (nvlist_lookup_uint64(vdev_tree,
- ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
- ashift = SPA_MINBLOCKSHIFT;
- nvlist_free(config);
- label_found = B_TRUE;
- }
- if (dump_opt['u'])
- dump_label_uberblocks(&label, ashift);
- }
-
- (void) close(fd);
-
- return (label_found ? 0 : 2);
-}
-
-static uint64_t dataset_feature_count[SPA_FEATURES];
-static uint64_t remap_deadlist_count = 0;
-
-/*ARGSUSED*/
-static int
-dump_one_dir(const char *dsname, void *arg)
-{
- int error;
- objset_t *os;
-
- error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
- if (error != 0)
- return (0);
-
- for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
- if (!dmu_objset_ds(os)->ds_feature_inuse[f])
- continue;
- ASSERT(spa_feature_table[f].fi_flags &
- ZFEATURE_FLAG_PER_DATASET);
- dataset_feature_count[f]++;
- }
-
- if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) {
- remap_deadlist_count++;
- }
-
- dump_dir(os);
- close_objset(os, FTAG);
- fuid_table_destroy();
- return (0);
-}
-
-/*
- * Block statistics.
- */
-#define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
-typedef struct zdb_blkstats {
- uint64_t zb_asize;
- uint64_t zb_lsize;
- uint64_t zb_psize;
- uint64_t zb_count;
- uint64_t zb_gangs;
- uint64_t zb_ditto_samevdev;
- uint64_t zb_ditto_same_ms;
- uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
-} zdb_blkstats_t;
-
-/*
- * Extended object types to report deferred frees and dedup auto-ditto blocks.
- */
-#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
-#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
-#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
-#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
-
-static const char *zdb_ot_extname[] = {
- "deferred free",
- "dedup ditto",
- "other",
- "Total",
-};
-
-#define ZB_TOTAL DN_MAX_LEVELS
-
-typedef struct zdb_cb {
- zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
- uint64_t zcb_removing_size;
- uint64_t zcb_checkpoint_size;
- uint64_t zcb_dedup_asize;
- uint64_t zcb_dedup_blocks;
- uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
- uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
- [BPE_PAYLOAD_SIZE];
- uint64_t zcb_start;
- hrtime_t zcb_lastprint;
- uint64_t zcb_totalasize;
- uint64_t zcb_errors[256];
- int zcb_readfails;
- int zcb_haderrors;
- spa_t *zcb_spa;
- uint32_t **zcb_vd_obsolete_counts;
-} zdb_cb_t;
-
-/* test if two DVA offsets from same vdev are within the same metaslab */
-static boolean_t
-same_metaslab(spa_t *spa, uint64_t vdev, uint64_t off1, uint64_t off2)
-{
- vdev_t *vd = vdev_lookup_top(spa, vdev);
- uint64_t ms_shift = vd->vdev_ms_shift;
-
- return ((off1 >> ms_shift) == (off2 >> ms_shift));
-}
-
-static void
-zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
- dmu_object_type_t type)
-{
- uint64_t refcnt = 0;
-
- ASSERT(type < ZDB_OT_TOTAL);
-
- if (zilog && zil_bp_tree_add(zilog, bp) != 0)
- return;
-
- spa_config_enter(zcb->zcb_spa, SCL_CONFIG, FTAG, RW_READER);
-
- for (int i = 0; i < 4; i++) {
- int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
- int t = (i & 1) ? type : ZDB_OT_TOTAL;
- int equal;
- zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
-
- zb->zb_asize += BP_GET_ASIZE(bp);
- zb->zb_lsize += BP_GET_LSIZE(bp);
- zb->zb_psize += BP_GET_PSIZE(bp);
- zb->zb_count++;
-
- /*
- * The histogram is only big enough to record blocks up to
- * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
- * "other", bucket.
- */
- unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
- idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
- zb->zb_psize_histogram[idx]++;
-
- zb->zb_gangs += BP_COUNT_GANG(bp);
-
- switch (BP_GET_NDVAS(bp)) {
- case 2:
- if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
- DVA_GET_VDEV(&bp->blk_dva[1])) {
- zb->zb_ditto_samevdev++;
-
- if (same_metaslab(zcb->zcb_spa,
- DVA_GET_VDEV(&bp->blk_dva[0]),
- DVA_GET_OFFSET(&bp->blk_dva[0]),
- DVA_GET_OFFSET(&bp->blk_dva[1])))
- zb->zb_ditto_same_ms++;
- }
- break;
- case 3:
- equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
- DVA_GET_VDEV(&bp->blk_dva[1])) +
- (DVA_GET_VDEV(&bp->blk_dva[0]) ==
- DVA_GET_VDEV(&bp->blk_dva[2])) +
- (DVA_GET_VDEV(&bp->blk_dva[1]) ==
- DVA_GET_VDEV(&bp->blk_dva[2]));
- if (equal != 0) {
- zb->zb_ditto_samevdev++;
-
- if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
- DVA_GET_VDEV(&bp->blk_dva[1]) &&
- same_metaslab(zcb->zcb_spa,
- DVA_GET_VDEV(&bp->blk_dva[0]),
- DVA_GET_OFFSET(&bp->blk_dva[0]),
- DVA_GET_OFFSET(&bp->blk_dva[1])))
- zb->zb_ditto_same_ms++;
- else if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
- DVA_GET_VDEV(&bp->blk_dva[2]) &&
- same_metaslab(zcb->zcb_spa,
- DVA_GET_VDEV(&bp->blk_dva[0]),
- DVA_GET_OFFSET(&bp->blk_dva[0]),
- DVA_GET_OFFSET(&bp->blk_dva[2])))
- zb->zb_ditto_same_ms++;
- else if (DVA_GET_VDEV(&bp->blk_dva[1]) ==
- DVA_GET_VDEV(&bp->blk_dva[2]) &&
- same_metaslab(zcb->zcb_spa,
- DVA_GET_VDEV(&bp->blk_dva[1]),
- DVA_GET_OFFSET(&bp->blk_dva[1]),
- DVA_GET_OFFSET(&bp->blk_dva[2])))
- zb->zb_ditto_same_ms++;
- }
- break;
- }
- }
-
- spa_config_exit(zcb->zcb_spa, SCL_CONFIG, FTAG);
-
- if (BP_IS_EMBEDDED(bp)) {
- zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
- zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
- [BPE_GET_PSIZE(bp)]++;
- return;
- }
-
- if (dump_opt['L'])
- return;
-
- if (BP_GET_DEDUP(bp)) {
- ddt_t *ddt;
- ddt_entry_t *dde;
-
- ddt = ddt_select(zcb->zcb_spa, bp);
- ddt_enter(ddt);
- dde = ddt_lookup(ddt, bp, B_FALSE);
-
- if (dde == NULL) {
- refcnt = 0;
- } else {
- ddt_phys_t *ddp = ddt_phys_select(dde, bp);
- ddt_phys_decref(ddp);
- refcnt = ddp->ddp_refcnt;
- if (ddt_phys_total_refcnt(dde) == 0)
- ddt_remove(ddt, dde);
- }
- ddt_exit(ddt);
- }
-
- VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
- refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa),
- bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
-}
-
-/* ARGSUSED */
-static void
-zdb_blkptr_done(zio_t *zio)
-{
- spa_t *spa = zio->io_spa;
- blkptr_t *bp = zio->io_bp;
- int ioerr = zio->io_error;
- zdb_cb_t *zcb = zio->io_private;
- zbookmark_phys_t *zb = &zio->io_bookmark;
-
- abd_free(zio->io_abd);
-
- mutex_enter(&spa->spa_scrub_lock);
- spa->spa_scrub_inflight--;
- spa->spa_load_verify_ios--;
- cv_broadcast(&spa->spa_scrub_io_cv);
-
- if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
- char blkbuf[BP_SPRINTF_LEN];
-
- zcb->zcb_haderrors = 1;
- zcb->zcb_errors[ioerr]++;
-
- if (dump_opt['b'] >= 2)
- snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
- else
- blkbuf[0] = '\0';
-
- (void) printf("zdb_blkptr_cb: "
- "Got error %d reading "
- "<%llu, %llu, %lld, %llx> %s -- skipping\n",
- ioerr,
- (u_longlong_t)zb->zb_objset,
- (u_longlong_t)zb->zb_object,
- (u_longlong_t)zb->zb_level,
- (u_longlong_t)zb->zb_blkid,
- blkbuf);
- }
- mutex_exit(&spa->spa_scrub_lock);
-}
-
-/* ARGSUSED */
-static int
-zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
- const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
-{
- zdb_cb_t *zcb = arg;
- dmu_object_type_t type;
- boolean_t is_metadata;
-
- if (bp == NULL)
- return (0);
-
- if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
- char blkbuf[BP_SPRINTF_LEN];
- snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
- (void) printf("objset %llu object %llu "
- "level %lld offset 0x%llx %s\n",
- (u_longlong_t)zb->zb_objset,
- (u_longlong_t)zb->zb_object,
- (longlong_t)zb->zb_level,
- (u_longlong_t)blkid2offset(dnp, bp, zb),
- blkbuf);
- }
-
- if (BP_IS_HOLE(bp))
- return (0);
-
- type = BP_GET_TYPE(bp);
-
- zdb_count_block(zcb, zilog, bp,
- (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
-
- is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
-
- if (!BP_IS_EMBEDDED(bp) &&
- (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
- size_t size = BP_GET_PSIZE(bp);
- abd_t *abd = abd_alloc(size, B_FALSE);
- int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
-
- /* If it's an intent log block, failure is expected. */
- if (zb->zb_level == ZB_ZIL_LEVEL)
- flags |= ZIO_FLAG_SPECULATIVE;
-
- mutex_enter(&spa->spa_scrub_lock);
- while (spa->spa_load_verify_ios > max_inflight)
- cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
- spa->spa_scrub_inflight++;
- spa->spa_load_verify_ios++;
- mutex_exit(&spa->spa_scrub_lock);
-
- zio_nowait(zio_read(NULL, spa, bp, abd, size,
- zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
- }
-
- zcb->zcb_readfails = 0;
-
- /* only call gethrtime() every 100 blocks */
- static int iters;
- if (++iters > 100)
- iters = 0;
- else
- return (0);
-
- if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
- uint64_t now = gethrtime();
- char buf[10];
- uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
- int kb_per_sec =
- 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
- int sec_remaining =
- (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
-
- /* make sure nicenum has enough space */
- CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ);
-
- zfs_nicenum(bytes, buf, sizeof (buf));
- (void) fprintf(stderr,
- "\r%5s completed (%4dMB/s) "
- "estimated time remaining: %uhr %02umin %02usec ",
- buf, kb_per_sec / 1024,
- sec_remaining / 60 / 60,
- sec_remaining / 60 % 60,
- sec_remaining % 60);
-
- zcb->zcb_lastprint = now;
- }
-
- return (0);
-}
-
-static void
-zdb_leak(void *arg, uint64_t start, uint64_t size)
-{
- vdev_t *vd = arg;
-
- (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
- (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
-}
-
-static metaslab_ops_t zdb_metaslab_ops = {
- NULL /* alloc */
-};
-
-static void
-zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
-{
- ddt_bookmark_t ddb;
- ddt_entry_t dde;
- int error;
-
- ASSERT(!dump_opt['L']);
-
- bzero(&ddb, sizeof (ddb));
- while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
- blkptr_t blk;
- ddt_phys_t *ddp = dde.dde_phys;
-
- if (ddb.ddb_class == DDT_CLASS_UNIQUE)
- return;
-
- ASSERT(ddt_phys_total_refcnt(&dde) > 1);
-
- for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
- if (ddp->ddp_phys_birth == 0)
- continue;
- ddt_bp_create(ddb.ddb_checksum,
- &dde.dde_key, ddp, &blk);
- if (p == DDT_PHYS_DITTO) {
- zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
- } else {
- zcb->zcb_dedup_asize +=
- BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
- zcb->zcb_dedup_blocks++;
- }
- }
- ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
- ddt_enter(ddt);
- VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
- ddt_exit(ddt);
- }
-
- ASSERT(error == ENOENT);
-}
-
-/* ARGSUSED */
-static void
-claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset,
- uint64_t size, void *arg)
-{
- /*
- * This callback was called through a remap from
- * a device being removed. Therefore, the vdev that
- * this callback is applied to is a concrete
- * vdev.
- */
- ASSERT(vdev_is_concrete(vd));
-
- VERIFY0(metaslab_claim_impl(vd, offset, size,
- spa_min_claim_txg(vd->vdev_spa)));
-}
-
-static void
-claim_segment_cb(void *arg, uint64_t offset, uint64_t size)
-{
- vdev_t *vd = arg;
-
- vdev_indirect_ops.vdev_op_remap(vd, offset, size,
- claim_segment_impl_cb, NULL);
-}
-
-/*
- * After accounting for all allocated blocks that are directly referenced,
- * we might have missed a reference to a block from a partially complete
- * (and thus unused) indirect mapping object. We perform a secondary pass
- * through the metaslabs we have already mapped and claim the destination
- * blocks.
- */
-static void
-zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb)
-{
- if (dump_opt['L'])
- return;
-
- if (spa->spa_vdev_removal == NULL)
- return;
-
- spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
-
- spa_vdev_removal_t *svr = spa->spa_vdev_removal;
- vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id);
- vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
-
- for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) {
- metaslab_t *msp = vd->vdev_ms[msi];
-
- if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim))
- break;
-
- ASSERT0(range_tree_space(svr->svr_allocd_segs));
-
- if (msp->ms_sm != NULL) {
- VERIFY0(space_map_load(msp->ms_sm,
- svr->svr_allocd_segs, SM_ALLOC));
-
- /*
- * Clear everything past what has been synced unless
- * it's past the spacemap, because we have not allocated
- * mappings for it yet.
- */
- uint64_t vim_max_offset =
- vdev_indirect_mapping_max_offset(vim);
- uint64_t sm_end = msp->ms_sm->sm_start +
- msp->ms_sm->sm_size;
- if (sm_end > vim_max_offset)
- range_tree_clear(svr->svr_allocd_segs,
- vim_max_offset, sm_end - vim_max_offset);
- }
-
- zcb->zcb_removing_size +=
- range_tree_space(svr->svr_allocd_segs);
- range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd);
- }
-
- spa_config_exit(spa, SCL_CONFIG, FTAG);
-}
-
-/* ARGSUSED */
-static int
-increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
-{
- zdb_cb_t *zcb = arg;
- spa_t *spa = zcb->zcb_spa;
- vdev_t *vd;
- const dva_t *dva = &bp->blk_dva[0];
-
- ASSERT(!dump_opt['L']);
- ASSERT3U(BP_GET_NDVAS(bp), ==, 1);
-
- spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
- vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva));
- ASSERT3P(vd, !=, NULL);
- spa_config_exit(spa, SCL_VDEV, FTAG);
-
- ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0);
- ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL);
-
- vdev_indirect_mapping_increment_obsolete_count(
- vd->vdev_indirect_mapping,
- DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva),
- zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
-
- return (0);
-}
-
-static uint32_t *
-zdb_load_obsolete_counts(vdev_t *vd)
-{
- vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
- spa_t *spa = vd->vdev_spa;
- spa_condensing_indirect_phys_t *scip =
- &spa->spa_condensing_indirect_phys;
- uint32_t *counts;
-
- EQUIV(vdev_obsolete_sm_object(vd) != 0, vd->vdev_obsolete_sm != NULL);
- counts = vdev_indirect_mapping_load_obsolete_counts(vim);
- if (vd->vdev_obsolete_sm != NULL) {
- vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
- vd->vdev_obsolete_sm);
- }
- if (scip->scip_vdev == vd->vdev_id &&
- scip->scip_prev_obsolete_sm_object != 0) {
- space_map_t *prev_obsolete_sm = NULL;
- VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset,
- scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0));
- vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
- prev_obsolete_sm);
- space_map_close(prev_obsolete_sm);
- }
- return (counts);
-}
-
-typedef struct checkpoint_sm_exclude_entry_arg {
- vdev_t *cseea_vd;
- uint64_t cseea_checkpoint_size;
-} checkpoint_sm_exclude_entry_arg_t;
-
-static int
-checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg)
-{
- checkpoint_sm_exclude_entry_arg_t *cseea = arg;
- vdev_t *vd = cseea->cseea_vd;
- metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift];
- uint64_t end = sme->sme_offset + sme->sme_run;
-
- ASSERT(sme->sme_type == SM_FREE);
-
- /*
- * Since the vdev_checkpoint_sm exists in the vdev level
- * and the ms_sm space maps exist in the metaslab level,
- * an entry in the checkpoint space map could theoretically
- * cross the boundaries of the metaslab that it belongs.
- *
- * In reality, because of the way that we populate and
- * manipulate the checkpoint's space maps currently,
- * there shouldn't be any entries that cross metaslabs.
- * Hence the assertion below.
- *
- * That said, there is no fundamental requirement that
- * the checkpoint's space map entries should not cross
- * metaslab boundaries. So if needed we could add code
- * that handles metaslab-crossing segments in the future.
- */
- VERIFY3U(sme->sme_offset, >=, ms->ms_start);
- VERIFY3U(end, <=, ms->ms_start + ms->ms_size);
-
- /*
- * By removing the entry from the allocated segments we
- * also verify that the entry is there to begin with.
- */
- mutex_enter(&ms->ms_lock);
- range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run);
- mutex_exit(&ms->ms_lock);
-
- cseea->cseea_checkpoint_size += sme->sme_run;
- return (0);
-}
-
-static void
-zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb)
-{
- spa_t *spa = vd->vdev_spa;
- space_map_t *checkpoint_sm = NULL;
- uint64_t checkpoint_sm_obj;
-
- /*
- * If there is no vdev_top_zap, we are in a pool whose
- * version predates the pool checkpoint feature.
- */
- if (vd->vdev_top_zap == 0)
- return;
-
- /*
- * If there is no reference of the vdev_checkpoint_sm in
- * the vdev_top_zap, then one of the following scenarios
- * is true:
- *
- * 1] There is no checkpoint
- * 2] There is a checkpoint, but no checkpointed blocks
- * have been freed yet
- * 3] The current vdev is indirect
- *
- * In these cases we return immediately.
- */
- if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap,
- VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
- return;
-
- VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap,
- VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1,
- &checkpoint_sm_obj));
-
- checkpoint_sm_exclude_entry_arg_t cseea;
- cseea.cseea_vd = vd;
- cseea.cseea_checkpoint_size = 0;
-
- VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa),
- checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift));
-
- VERIFY0(space_map_iterate(checkpoint_sm,
- space_map_length(checkpoint_sm),
- checkpoint_sm_exclude_entry_cb, &cseea));
- space_map_close(checkpoint_sm);
-
- zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size;
-}
-
-static void
-zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb)
-{
- ASSERT(!dump_opt['L']);
-
- vdev_t *rvd = spa->spa_root_vdev;
- for (uint64_t c = 0; c < rvd->vdev_children; c++) {
- ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id);
- zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb);
- }
-}
-
-static void
-load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype)
-{
- vdev_t *rvd = spa->spa_root_vdev;
- for (uint64_t i = 0; i < rvd->vdev_children; i++) {
- vdev_t *vd = rvd->vdev_child[i];
-
- ASSERT3U(i, ==, vd->vdev_id);
-
- if (vd->vdev_ops == &vdev_indirect_ops)
- continue;
-
- for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
- metaslab_t *msp = vd->vdev_ms[m];
-
- (void) fprintf(stderr,
- "\rloading concrete vdev %llu, "
- "metaslab %llu of %llu ...",
- (longlong_t)vd->vdev_id,
- (longlong_t)msp->ms_id,
- (longlong_t)vd->vdev_ms_count);
-
- mutex_enter(&msp->ms_lock);
- metaslab_unload(msp);
-
- /*
- * We don't want to spend the CPU manipulating the
- * size-ordered tree, so clear the range_tree ops.
- */
- msp->ms_allocatable->rt_ops = NULL;
-
- if (msp->ms_sm != NULL) {
- VERIFY0(space_map_load(msp->ms_sm,
- msp->ms_allocatable, maptype));
- }
- if (!msp->ms_loaded)
- msp->ms_loaded = B_TRUE;
- mutex_exit(&msp->ms_lock);
- }
- }
-}
-
-/*
- * vm_idxp is an in-out parameter which (for indirect vdevs) is the
- * index in vim_entries that has the first entry in this metaslab.
- * On return, it will be set to the first entry after this metaslab.
- */
-static void
-load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp,
- uint64_t *vim_idxp)
-{
- vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
-
- mutex_enter(&msp->ms_lock);
- metaslab_unload(msp);
-
- /*
- * We don't want to spend the CPU manipulating the
- * size-ordered tree, so clear the range_tree ops.
- */
- msp->ms_allocatable->rt_ops = NULL;
-
- for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim);
- (*vim_idxp)++) {
- vdev_indirect_mapping_entry_phys_t *vimep =
- &vim->vim_entries[*vim_idxp];
- uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
- uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst);
- ASSERT3U(ent_offset, >=, msp->ms_start);
- if (ent_offset >= msp->ms_start + msp->ms_size)
- break;
-
- /*
- * Mappings do not cross metaslab boundaries,
- * because we create them by walking the metaslabs.
- */
- ASSERT3U(ent_offset + ent_len, <=,
- msp->ms_start + msp->ms_size);
- range_tree_add(msp->ms_allocatable, ent_offset, ent_len);
- }
-
- if (!msp->ms_loaded)
- msp->ms_loaded = B_TRUE;
- mutex_exit(&msp->ms_lock);
-}
-
-static void
-zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb)
-{
- ASSERT(!dump_opt['L']);
-
- vdev_t *rvd = spa->spa_root_vdev;
- for (uint64_t c = 0; c < rvd->vdev_children; c++) {
- vdev_t *vd = rvd->vdev_child[c];
-
- ASSERT3U(c, ==, vd->vdev_id);
-
- if (vd->vdev_ops != &vdev_indirect_ops)
- continue;
-
- /*
- * Note: we don't check for mapping leaks on
- * removing vdevs because their ms_allocatable's
- * are used to look for leaks in allocated space.
- */
- zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd);
-
- /*
- * Normally, indirect vdevs don't have any
- * metaslabs. We want to set them up for
- * zio_claim().
- */
- VERIFY0(vdev_metaslab_init(vd, 0));
-
- vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
- uint64_t vim_idx = 0;
- for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
-
- (void) fprintf(stderr,
- "\rloading indirect vdev %llu, "
- "metaslab %llu of %llu ...",
- (longlong_t)vd->vdev_id,
- (longlong_t)vd->vdev_ms[m]->ms_id,
- (longlong_t)vd->vdev_ms_count);
-
- load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m],
- &vim_idx);
- }
- ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim));
- }
-}
-
-static void
-zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
-{
- zcb->zcb_spa = spa;
-
- if (dump_opt['L'])
- return;
-
- dsl_pool_t *dp = spa->spa_dsl_pool;
- vdev_t *rvd = spa->spa_root_vdev;
-
- /*
- * We are going to be changing the meaning of the metaslab's
- * ms_allocatable. Ensure that the allocator doesn't try to
- * use the tree.
- */
- spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
- spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
-
- zcb->zcb_vd_obsolete_counts =
- umem_zalloc(rvd->vdev_children * sizeof (uint32_t *),
- UMEM_NOFAIL);
-
- /*
- * For leak detection, we overload the ms_allocatable trees
- * to contain allocated segments instead of free segments.
- * As a result, we can't use the normal metaslab_load/unload
- * interfaces.
- */
- zdb_leak_init_prepare_indirect_vdevs(spa, zcb);
- load_concrete_ms_allocatable_trees(spa, SM_ALLOC);
-
- /*
- * On load_concrete_ms_allocatable_trees() we loaded all the
- * allocated entries from the ms_sm to the ms_allocatable for
- * each metaslab. If the pool has a checkpoint or is in the
- * middle of discarding a checkpoint, some of these blocks
- * may have been freed but their ms_sm may not have been
- * updated because they are referenced by the checkpoint. In
- * order to avoid false-positives during leak-detection, we
- * go through the vdev's checkpoint space map and exclude all
- * its entries from their relevant ms_allocatable.
- *
- * We also aggregate the space held by the checkpoint and add
- * it to zcb_checkpoint_size.
- *
- * Note that at this point we are also verifying that all the
- * entries on the checkpoint_sm are marked as allocated in
- * the ms_sm of their relevant metaslab.
- * [see comment in checkpoint_sm_exclude_entry_cb()]
- */
- zdb_leak_init_exclude_checkpoint(spa, zcb);
- ASSERT3U(zcb->zcb_checkpoint_size, ==, spa_get_checkpoint_space(spa));
-
- /* for cleaner progress output */
- (void) fprintf(stderr, "\n");
-
- if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
- ASSERT(spa_feature_is_enabled(spa,
- SPA_FEATURE_DEVICE_REMOVAL));
- (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj,
- increment_indirect_mapping_cb, zcb, NULL);
- }
-
- spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
- zdb_ddt_leak_init(spa, zcb);
- spa_config_exit(spa, SCL_CONFIG, FTAG);
-}
-
-static boolean_t
-zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb)
-{
- boolean_t leaks = B_FALSE;
- vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
- uint64_t total_leaked = 0;
-
- ASSERT(vim != NULL);
-
- for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
- vdev_indirect_mapping_entry_phys_t *vimep =
- &vim->vim_entries[i];
- uint64_t obsolete_bytes = 0;
- uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
- metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];
-
- /*
- * This is not very efficient but it's easy to
- * verify correctness.
- */
- for (uint64_t inner_offset = 0;
- inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst);
- inner_offset += 1 << vd->vdev_ashift) {
- if (range_tree_contains(msp->ms_allocatable,
- offset + inner_offset, 1 << vd->vdev_ashift)) {
- obsolete_bytes += 1 << vd->vdev_ashift;
- }
- }
-
- int64_t bytes_leaked = obsolete_bytes -
- zcb->zcb_vd_obsolete_counts[vd->vdev_id][i];
- ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=,
- zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]);
- if (bytes_leaked != 0 &&
- (vdev_obsolete_counts_are_precise(vd) ||
- dump_opt['d'] >= 5)) {
- (void) printf("obsolete indirect mapping count "
- "mismatch on %llu:%llx:%llx : %llx bytes leaked\n",
- (u_longlong_t)vd->vdev_id,
- (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
- (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
- (u_longlong_t)bytes_leaked);
- }
- total_leaked += ABS(bytes_leaked);
- }
-
- if (!vdev_obsolete_counts_are_precise(vd) && total_leaked > 0) {
- int pct_leaked = total_leaked * 100 /
- vdev_indirect_mapping_bytes_mapped(vim);
- (void) printf("cannot verify obsolete indirect mapping "
- "counts of vdev %llu because precise feature was not "
- "enabled when it was removed: %d%% (%llx bytes) of mapping"
- "unreferenced\n",
- (u_longlong_t)vd->vdev_id, pct_leaked,
- (u_longlong_t)total_leaked);
- } else if (total_leaked > 0) {
- (void) printf("obsolete indirect mapping count mismatch "
- "for vdev %llu -- %llx total bytes mismatched\n",
- (u_longlong_t)vd->vdev_id,
- (u_longlong_t)total_leaked);
- leaks |= B_TRUE;
- }
-
- vdev_indirect_mapping_free_obsolete_counts(vim,
- zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
- zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL;
-
- return (leaks);
-}
-
-static boolean_t
-zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb)
-{
- if (dump_opt['L'])
- return (B_FALSE);
-
- boolean_t leaks = B_FALSE;
-
- vdev_t *rvd = spa->spa_root_vdev;
- for (unsigned c = 0; c < rvd->vdev_children; c++) {
- vdev_t *vd = rvd->vdev_child[c];
-#if DEBUG
- metaslab_group_t *mg = vd->vdev_mg;
-#endif
-
- if (zcb->zcb_vd_obsolete_counts[c] != NULL) {
- leaks |= zdb_check_for_obsolete_leaks(vd, zcb);
- }
-
- for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
- metaslab_t *msp = vd->vdev_ms[m];
- ASSERT3P(mg, ==, msp->ms_group);
-
- /*
- * ms_allocatable has been overloaded
- * to contain allocated segments. Now that
- * we finished traversing all blocks, any
- * block that remains in the ms_allocatable
- * represents an allocated block that we
- * did not claim during the traversal.
- * Claimed blocks would have been removed
- * from the ms_allocatable. For indirect
- * vdevs, space remaining in the tree
- * represents parts of the mapping that are
- * not referenced, which is not a bug.
- */
- if (vd->vdev_ops == &vdev_indirect_ops) {
- range_tree_vacate(msp->ms_allocatable,
- NULL, NULL);
- } else {
- range_tree_vacate(msp->ms_allocatable,
- zdb_leak, vd);
- }
-
- if (msp->ms_loaded) {
- msp->ms_loaded = B_FALSE;
- }
- }
-
- }
-
- umem_free(zcb->zcb_vd_obsolete_counts,
- rvd->vdev_children * sizeof (uint32_t *));
- zcb->zcb_vd_obsolete_counts = NULL;
-
- return (leaks);
-}
-
-/* ARGSUSED */
-static int
-count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
-{
- zdb_cb_t *zcb = arg;
-
- if (dump_opt['b'] >= 5) {
- char blkbuf[BP_SPRINTF_LEN];
- snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
- (void) printf("[%s] %s\n",
- "deferred free", blkbuf);
- }
- zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
- return (0);
-}
-
-static int
-dump_block_stats(spa_t *spa)
-{
- zdb_cb_t zcb;
- zdb_blkstats_t *zb, *tzb;
- uint64_t norm_alloc, norm_space, total_alloc, total_found;
- int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
- boolean_t leaks = B_FALSE;
- int err;
-
- bzero(&zcb, sizeof (zcb));
- (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
- (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
- (dump_opt['c'] == 1) ? "metadata " : "",
- dump_opt['c'] ? "checksums " : "",
- (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
- !dump_opt['L'] ? "nothing leaked " : "");
-
- /*
- * When leak detection is enabled we load all space maps as SM_ALLOC
- * maps, then traverse the pool claiming each block we discover. If
- * the pool is perfectly consistent, the segment trees will be empty
- * when we're done. Anything left over is a leak; any block we can't
- * claim (because it's not part of any space map) is a double
- * allocation, reference to a freed block, or an unclaimed log block.
- *
- * When leak detection is disabled (-L option) we still traverse the
- * pool claiming each block we discover, but we skip opening any space
- * maps.
- */
- bzero(&zcb, sizeof (zdb_cb_t));
- zdb_leak_init(spa, &zcb);
-
- /*
- * If there's a deferred-free bplist, process that first.
- */
- (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
- count_block_cb, &zcb, NULL);
-
- if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
- (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
- count_block_cb, &zcb, NULL);
- }
-
- zdb_claim_removing(spa, &zcb);
-
- if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
- VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
- spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
- &zcb, NULL));
- }
-
- if (dump_opt['c'] > 1)
- flags |= TRAVERSE_PREFETCH_DATA;
-
- zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
- zcb.zcb_totalasize += metaslab_class_get_alloc(spa_special_class(spa));
- zcb.zcb_totalasize += metaslab_class_get_alloc(spa_dedup_class(spa));
- zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
- err = traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
-
- /*
- * If we've traversed the data blocks then we need to wait for those
- * I/Os to complete. We leverage "The Godfather" zio to wait on
- * all async I/Os to complete.
- */
- if (dump_opt['c']) {
- for (int i = 0; i < max_ncpus; i++) {
- (void) zio_wait(spa->spa_async_zio_root[i]);
- spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
- ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
- ZIO_FLAG_GODFATHER);
- }
- }
-
- /*
- * Done after zio_wait() since zcb_haderrors is modified in
- * zdb_blkptr_done()
- */
- zcb.zcb_haderrors |= err;
-
- if (zcb.zcb_haderrors) {
- (void) printf("\nError counts:\n\n");
- (void) printf("\t%5s %s\n", "errno", "count");
- for (int e = 0; e < 256; e++) {
- if (zcb.zcb_errors[e] != 0) {
- (void) printf("\t%5d %llu\n",
- e, (u_longlong_t)zcb.zcb_errors[e]);
- }
- }
- }
-
- /*
- * Report any leaked segments.
- */
- leaks |= zdb_leak_fini(spa, &zcb);
-
- tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
-
- norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
- norm_space = metaslab_class_get_space(spa_normal_class(spa));
-
- total_alloc = norm_alloc +
- metaslab_class_get_alloc(spa_log_class(spa)) +
- metaslab_class_get_alloc(spa_special_class(spa)) +
- metaslab_class_get_alloc(spa_dedup_class(spa));
- total_found = tzb->zb_asize - zcb.zcb_dedup_asize +
- zcb.zcb_removing_size + zcb.zcb_checkpoint_size;
-
- if (total_found == total_alloc && !dump_opt['L']) {
- (void) printf("\n\tNo leaks (block sum matches space"
- " maps exactly)\n");
- } else if (!dump_opt['L']) {
- (void) printf("block traversal size %llu != alloc %llu "
- "(%s %lld)\n",
- (u_longlong_t)total_found,
- (u_longlong_t)total_alloc,
- (dump_opt['L']) ? "unreachable" : "leaked",
- (longlong_t)(total_alloc - total_found));
- leaks = B_TRUE;
- }
-
- if (tzb->zb_count == 0)
- return (2);
-
- (void) printf("\n");
- (void) printf("\t%-16s %14llu\n", "bp count:",
- (u_longlong_t)tzb->zb_count);
- (void) printf("\t%-16s %14llu\n", "ganged count:",
- (longlong_t)tzb->zb_gangs);
- (void) printf("\t%-16s %14llu avg: %6llu\n", "bp logical:",
- (u_longlong_t)tzb->zb_lsize,
- (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
- (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n",
- "bp physical:", (u_longlong_t)tzb->zb_psize,
- (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
- (double)tzb->zb_lsize / tzb->zb_psize);
- (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n",
- "bp allocated:", (u_longlong_t)tzb->zb_asize,
- (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
- (double)tzb->zb_lsize / tzb->zb_asize);
- (void) printf("\t%-16s %14llu ref>1: %6llu deduplication: %6.2f\n",
- "bp deduped:", (u_longlong_t)zcb.zcb_dedup_asize,
- (u_longlong_t)zcb.zcb_dedup_blocks,
- (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
- (void) printf("\t%-16s %14llu used: %5.2f%%\n", "Normal class:",
- (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
-
- if (spa_special_class(spa)->mc_rotor != NULL) {
- uint64_t alloc = metaslab_class_get_alloc(
- spa_special_class(spa));
- uint64_t space = metaslab_class_get_space(
- spa_special_class(spa));
-
- (void) printf("\t%-16s %14llu used: %5.2f%%\n",
- "Special class", (u_longlong_t)alloc,
- 100.0 * alloc / space);
- }
-
- if (spa_dedup_class(spa)->mc_rotor != NULL) {
- uint64_t alloc = metaslab_class_get_alloc(
- spa_dedup_class(spa));
- uint64_t space = metaslab_class_get_space(
- spa_dedup_class(spa));
-
- (void) printf("\t%-16s %14llu used: %5.2f%%\n",
- "Dedup class", (u_longlong_t)alloc,
- 100.0 * alloc / space);
- }
-
- for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
- if (zcb.zcb_embedded_blocks[i] == 0)
- continue;
- (void) printf("\n");
- (void) printf("\tadditional, non-pointer bps of type %u: "
- "%10llu\n",
- i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
-
- if (dump_opt['b'] >= 3) {
- (void) printf("\t number of (compressed) bytes: "
- "number of bps\n");
- dump_histogram(zcb.zcb_embedded_histogram[i],
- sizeof (zcb.zcb_embedded_histogram[i]) /
- sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
- }
- }
-
- if (tzb->zb_ditto_samevdev != 0) {
- (void) printf("\tDittoed blocks on same vdev: %llu\n",
- (longlong_t)tzb->zb_ditto_samevdev);
- }
- if (tzb->zb_ditto_same_ms != 0) {
- (void) printf("\tDittoed blocks in same metaslab: %llu\n",
- (longlong_t)tzb->zb_ditto_same_ms);
- }
-
- for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) {
- vdev_t *vd = spa->spa_root_vdev->vdev_child[v];
- vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
-
- if (vim == NULL) {
- continue;
- }
-
- char mem[32];
- zdb_nicenum(vdev_indirect_mapping_num_entries(vim),
- mem, vdev_indirect_mapping_size(vim));
-
- (void) printf("\tindirect vdev id %llu has %llu segments "
- "(%s in memory)\n",
- (longlong_t)vd->vdev_id,
- (longlong_t)vdev_indirect_mapping_num_entries(vim), mem);
- }
-
- if (dump_opt['b'] >= 2) {
- int l, t, level;
- (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
- "\t avg\t comp\t%%Total\tType\n");
-
- for (t = 0; t <= ZDB_OT_TOTAL; t++) {
- char csize[32], lsize[32], psize[32], asize[32];
- char avg[32], gang[32];
- const char *typename;
-
- /* make sure nicenum has enough space */
- CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ);
- CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ);
-
- if (t < DMU_OT_NUMTYPES)
- typename = dmu_ot[t].ot_name;
- else
- typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
-
- if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
- (void) printf("%6s\t%5s\t%5s\t%5s"
- "\t%5s\t%5s\t%6s\t%s\n",
- "-",
- "-",
- "-",
- "-",
- "-",
- "-",
- "-",
- typename);
- continue;
- }
-
- for (l = ZB_TOTAL - 1; l >= -1; l--) {
- level = (l == -1 ? ZB_TOTAL : l);
- zb = &zcb.zcb_type[level][t];
-
- if (zb->zb_asize == 0)
- continue;
-
- if (dump_opt['b'] < 3 && level != ZB_TOTAL)
- continue;
-
- if (level == 0 && zb->zb_asize ==
- zcb.zcb_type[ZB_TOTAL][t].zb_asize)
- continue;
-
- zdb_nicenum(zb->zb_count, csize,
- sizeof (csize));
- zdb_nicenum(zb->zb_lsize, lsize,
- sizeof (lsize));
- zdb_nicenum(zb->zb_psize, psize,
- sizeof (psize));
- zdb_nicenum(zb->zb_asize, asize,
- sizeof (asize));
- zdb_nicenum(zb->zb_asize / zb->zb_count, avg,
- sizeof (avg));
- zdb_nicenum(zb->zb_gangs, gang, sizeof (gang));
-
- (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
- "\t%5.2f\t%6.2f\t",
- csize, lsize, psize, asize, avg,
- (double)zb->zb_lsize / zb->zb_psize,
- 100.0 * zb->zb_asize / tzb->zb_asize);
-
- if (level == ZB_TOTAL)
- (void) printf("%s\n", typename);
- else
- (void) printf(" L%d %s\n",
- level, typename);
-
- if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
- (void) printf("\t number of ganged "
- "blocks: %s\n", gang);
- }
-
- if (dump_opt['b'] >= 4) {
- (void) printf("psize "
- "(in 512-byte sectors): "
- "number of blocks\n");
- dump_histogram(zb->zb_psize_histogram,
- PSIZE_HISTO_SIZE, 0);
- }
- }
- }
- }
-
- (void) printf("\n");
-
- if (leaks)
- return (2);
-
- if (zcb.zcb_haderrors)
- return (3);
-
- return (0);
-}
-
-typedef struct zdb_ddt_entry {
- ddt_key_t zdde_key;
- uint64_t zdde_ref_blocks;
- uint64_t zdde_ref_lsize;
- uint64_t zdde_ref_psize;
- uint64_t zdde_ref_dsize;
- avl_node_t zdde_node;
-} zdb_ddt_entry_t;
-
-/* ARGSUSED */
-static int
-zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
- const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
-{
- avl_tree_t *t = arg;
- avl_index_t where;
- zdb_ddt_entry_t *zdde, zdde_search;
-
- if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
- return (0);
-
- if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
- (void) printf("traversing objset %llu, %llu objects, "
- "%lu blocks so far\n",
- (u_longlong_t)zb->zb_objset,
- (u_longlong_t)BP_GET_FILL(bp),
- avl_numnodes(t));
- }
-
- if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
- BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
- return (0);
-
- ddt_key_fill(&zdde_search.zdde_key, bp);
-
- zdde = avl_find(t, &zdde_search, &where);
-
- if (zdde == NULL) {
- zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
- zdde->zdde_key = zdde_search.zdde_key;
- avl_insert(t, zdde, where);
- }
-
- zdde->zdde_ref_blocks += 1;
- zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
- zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
- zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
-
- return (0);
-}
-
-static void
-dump_simulated_ddt(spa_t *spa)
-{
- avl_tree_t t;
- void *cookie = NULL;
- zdb_ddt_entry_t *zdde;
- ddt_histogram_t ddh_total;
- ddt_stat_t dds_total;
-
- bzero(&ddh_total, sizeof (ddh_total));
- bzero(&dds_total, sizeof (dds_total));
- avl_create(&t, ddt_entry_compare,
- sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
-
- spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
-
- (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
- zdb_ddt_add_cb, &t);
-
- spa_config_exit(spa, SCL_CONFIG, FTAG);
-
- while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
- ddt_stat_t dds;
- uint64_t refcnt = zdde->zdde_ref_blocks;
- ASSERT(refcnt != 0);
-
- dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
- dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
- dds.dds_psize = zdde->zdde_ref_psize / refcnt;
- dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
-
- dds.dds_ref_blocks = zdde->zdde_ref_blocks;
- dds.dds_ref_lsize = zdde->zdde_ref_lsize;
- dds.dds_ref_psize = zdde->zdde_ref_psize;
- dds.dds_ref_dsize = zdde->zdde_ref_dsize;
-
- ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
- &dds, 0);
-
- umem_free(zdde, sizeof (*zdde));
- }
-
- avl_destroy(&t);
-
- ddt_histogram_stat(&dds_total, &ddh_total);
-
- (void) printf("Simulated DDT histogram:\n");
-
- zpool_dump_ddt(&dds_total, &ddh_total);
-
- dump_dedup_ratio(&dds_total);
-}
-
-static int
-verify_device_removal_feature_counts(spa_t *spa)
-{
- uint64_t dr_feature_refcount = 0;
- uint64_t oc_feature_refcount = 0;
- uint64_t indirect_vdev_count = 0;
- uint64_t precise_vdev_count = 0;
- uint64_t obsolete_counts_object_count = 0;
- uint64_t obsolete_sm_count = 0;
- uint64_t obsolete_counts_count = 0;
- uint64_t scip_count = 0;
- uint64_t obsolete_bpobj_count = 0;
- int ret = 0;
-
- spa_condensing_indirect_phys_t *scip =
- &spa->spa_condensing_indirect_phys;
- if (scip->scip_next_mapping_object != 0) {
- vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev];
- ASSERT(scip->scip_prev_obsolete_sm_object != 0);
- ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops);
-
- (void) printf("Condensing indirect vdev %llu: new mapping "
- "object %llu, prev obsolete sm %llu\n",
- (u_longlong_t)scip->scip_vdev,
- (u_longlong_t)scip->scip_next_mapping_object,
- (u_longlong_t)scip->scip_prev_obsolete_sm_object);
- if (scip->scip_prev_obsolete_sm_object != 0) {
- space_map_t *prev_obsolete_sm = NULL;
- VERIFY0(space_map_open(&prev_obsolete_sm,
- spa->spa_meta_objset,
- scip->scip_prev_obsolete_sm_object,
- 0, vd->vdev_asize, 0));
- dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm);
- (void) printf("\n");
- space_map_close(prev_obsolete_sm);
- }
-
- scip_count += 2;
- }
-
- for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) {
- vdev_t *vd = spa->spa_root_vdev->vdev_child[i];
- vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
-
- if (vic->vic_mapping_object != 0) {
- ASSERT(vd->vdev_ops == &vdev_indirect_ops ||
- vd->vdev_removing);
- indirect_vdev_count++;
-
- if (vd->vdev_indirect_mapping->vim_havecounts) {
- obsolete_counts_count++;
- }
- }
- if (vdev_obsolete_counts_are_precise(vd)) {
- ASSERT(vic->vic_mapping_object != 0);
- precise_vdev_count++;
- }
- if (vdev_obsolete_sm_object(vd) != 0) {
- ASSERT(vic->vic_mapping_object != 0);
- obsolete_sm_count++;
- }
- }
-
- (void) feature_get_refcount(spa,
- &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL],
- &dr_feature_refcount);
- (void) feature_get_refcount(spa,
- &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS],
- &oc_feature_refcount);
-
- if (dr_feature_refcount != indirect_vdev_count) {
- ret = 1;
- (void) printf("Number of indirect vdevs (%llu) " \
- "does not match feature count (%llu)\n",
- (u_longlong_t)indirect_vdev_count,
- (u_longlong_t)dr_feature_refcount);
- } else {
- (void) printf("Verified device_removal feature refcount " \
- "of %llu is correct\n",
- (u_longlong_t)dr_feature_refcount);
- }
-
- if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT,
- DMU_POOL_OBSOLETE_BPOBJ) == 0) {
- obsolete_bpobj_count++;
- }
-
-
- obsolete_counts_object_count = precise_vdev_count;
- obsolete_counts_object_count += obsolete_sm_count;
- obsolete_counts_object_count += obsolete_counts_count;
- obsolete_counts_object_count += scip_count;
- obsolete_counts_object_count += obsolete_bpobj_count;
- obsolete_counts_object_count += remap_deadlist_count;
-
- if (oc_feature_refcount != obsolete_counts_object_count) {
- ret = 1;
- (void) printf("Number of obsolete counts objects (%llu) " \
- "does not match feature count (%llu)\n",
- (u_longlong_t)obsolete_counts_object_count,
- (u_longlong_t)oc_feature_refcount);
- (void) printf("pv:%llu os:%llu oc:%llu sc:%llu "
- "ob:%llu rd:%llu\n",
- (u_longlong_t)precise_vdev_count,
- (u_longlong_t)obsolete_sm_count,
- (u_longlong_t)obsolete_counts_count,
- (u_longlong_t)scip_count,
- (u_longlong_t)obsolete_bpobj_count,
- (u_longlong_t)remap_deadlist_count);
- } else {
- (void) printf("Verified indirect_refcount feature refcount " \
- "of %llu is correct\n",
- (u_longlong_t)oc_feature_refcount);
- }
- return (ret);
-}
-
-static void
-zdb_set_skip_mmp(char *target)
-{
- spa_t *spa;
-
- /*
- * Disable the activity check to allow examination of
- * active pools.
- */
- mutex_enter(&spa_namespace_lock);
- if ((spa = spa_lookup(target)) != NULL) {
- spa->spa_import_flags |= ZFS_IMPORT_SKIP_MMP;
- }
- mutex_exit(&spa_namespace_lock);
-}
-
-#define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE"
-/*
- * Import the checkpointed state of the pool specified by the target
- * parameter as readonly. The function also accepts a pool config
- * as an optional parameter, else it attempts to infer the config by
- * the name of the target pool.
- *
- * Note that the checkpointed state's pool name will be the name of
- * the original pool with the above suffix appened to it. In addition,
- * if the target is not a pool name (e.g. a path to a dataset) then
- * the new_path parameter is populated with the updated path to
- * reflect the fact that we are looking into the checkpointed state.
- *
- * The function returns a newly-allocated copy of the name of the
- * pool containing the checkpointed state. When this copy is no
- * longer needed it should be freed with free(3C). Same thing
- * applies to the new_path parameter if allocated.
- */
-static char *
-import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path)
-{
- int error = 0;
- char *poolname, *bogus_name;
-
- /* If the target is not a pool, the extract the pool name */
- char *path_start = strchr(target, '/');
- if (path_start != NULL) {
- size_t poolname_len = path_start - target;
- poolname = strndup(target, poolname_len);
- } else {
- poolname = target;
- }
-
- if (cfg == NULL) {
- zdb_set_skip_mmp(poolname);
- error = spa_get_stats(poolname, &cfg, NULL, 0);
- if (error != 0) {
- fatal("Tried to read config of pool \"%s\" but "
- "spa_get_stats() failed with error %d\n",
- poolname, error);
- }
- }
-
- (void) asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX);
- fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name);
-
- error = spa_import(bogus_name, cfg, NULL,
- ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT |
- ZFS_IMPORT_SKIP_MMP);
- if (error != 0) {
- fatal("Tried to import pool \"%s\" but spa_import() failed "
- "with error %d\n", bogus_name, error);
- }
-
- if (new_path != NULL && path_start != NULL)
- (void) asprintf(new_path, "%s%s", bogus_name, path_start);
-
- if (target != poolname)
- free(poolname);
-
- return (bogus_name);
-}
-
-typedef struct verify_checkpoint_sm_entry_cb_arg {
- vdev_t *vcsec_vd;
-
- /* the following fields are only used for printing progress */
- uint64_t vcsec_entryid;
- uint64_t vcsec_num_entries;
-} verify_checkpoint_sm_entry_cb_arg_t;
-
-#define ENTRIES_PER_PROGRESS_UPDATE 10000
-
-static int
-verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg)
-{
- verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg;
- vdev_t *vd = vcsec->vcsec_vd;
- metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift];
- uint64_t end = sme->sme_offset + sme->sme_run;
-
- ASSERT(sme->sme_type == SM_FREE);
-
- if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) {
- (void) fprintf(stderr,
- "\rverifying vdev %llu, space map entry %llu of %llu ...",
- (longlong_t)vd->vdev_id,
- (longlong_t)vcsec->vcsec_entryid,
- (longlong_t)vcsec->vcsec_num_entries);
- }
- vcsec->vcsec_entryid++;
-
- /*
- * See comment in checkpoint_sm_exclude_entry_cb()
- */
- VERIFY3U(sme->sme_offset, >=, ms->ms_start);
- VERIFY3U(end, <=, ms->ms_start + ms->ms_size);
-
- /*
- * The entries in the vdev_checkpoint_sm should be marked as
- * allocated in the checkpointed state of the pool, therefore
- * their respective ms_allocateable trees should not contain them.
- */
- mutex_enter(&ms->ms_lock);
- range_tree_verify_not_present(ms->ms_allocatable,
- sme->sme_offset, sme->sme_run);
- mutex_exit(&ms->ms_lock);
-
- return (0);
-}
-
-/*
- * Verify that all segments in the vdev_checkpoint_sm are allocated
- * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's
- * ms_allocatable).
- *
- * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of
- * each vdev in the current state of the pool to the metaslab space maps
- * (ms_sm) of the checkpointed state of the pool.
- *
- * Note that the function changes the state of the ms_allocatable
- * trees of the current spa_t. The entries of these ms_allocatable
- * trees are cleared out and then repopulated from with the free
- * entries of their respective ms_sm space maps.
- */
-static void
-verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current)
-{
- vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev;
- vdev_t *current_rvd = current->spa_root_vdev;
-
- load_concrete_ms_allocatable_trees(checkpoint, SM_FREE);
-
- for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) {
- vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c];
- vdev_t *current_vd = current_rvd->vdev_child[c];
-
- space_map_t *checkpoint_sm = NULL;
- uint64_t checkpoint_sm_obj;
-
- if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) {
- /*
- * Since we don't allow device removal in a pool
- * that has a checkpoint, we expect that all removed
- * vdevs were removed from the pool before the
- * checkpoint.
- */
- ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops);
- continue;
- }
-
- /*
- * If the checkpoint space map doesn't exist, then nothing
- * here is checkpointed so there's nothing to verify.
- */
- if (current_vd->vdev_top_zap == 0 ||
- zap_contains(spa_meta_objset(current),
- current_vd->vdev_top_zap,
- VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
- continue;
-
- VERIFY0(zap_lookup(spa_meta_objset(current),
- current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM,
- sizeof (uint64_t), 1, &checkpoint_sm_obj));
-
- VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current),
- checkpoint_sm_obj, 0, current_vd->vdev_asize,
- current_vd->vdev_ashift));
-
- verify_checkpoint_sm_entry_cb_arg_t vcsec;
- vcsec.vcsec_vd = ckpoint_vd;
- vcsec.vcsec_entryid = 0;
- vcsec.vcsec_num_entries =
- space_map_length(checkpoint_sm) / sizeof (uint64_t);
- VERIFY0(space_map_iterate(checkpoint_sm,
- space_map_length(checkpoint_sm),
- verify_checkpoint_sm_entry_cb, &vcsec));
- dump_spacemap(current->spa_meta_objset, checkpoint_sm);
- space_map_close(checkpoint_sm);
- }
-
- /*
- * If we've added vdevs since we took the checkpoint, ensure
- * that their checkpoint space maps are empty.
- */
- if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) {
- for (uint64_t c = ckpoint_rvd->vdev_children;
- c < current_rvd->vdev_children; c++) {
- vdev_t *current_vd = current_rvd->vdev_child[c];
- ASSERT3P(current_vd->vdev_checkpoint_sm, ==, NULL);
- }
- }
-
- /* for cleaner progress output */
- (void) fprintf(stderr, "\n");
-}
-
-/*
- * Verifies that all space that's allocated in the checkpoint is
- * still allocated in the current version, by checking that everything
- * in checkpoint's ms_allocatable (which is actually allocated, not
- * allocatable/free) is not present in current's ms_allocatable.
- *
- * Note that the function changes the state of the ms_allocatable
- * trees of both spas when called. The entries of all ms_allocatable
- * trees are cleared out and then repopulated from their respective
- * ms_sm space maps. In the checkpointed state we load the allocated
- * entries, and in the current state we load the free entries.
- */
-static void
-verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current)
-{
- vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev;
- vdev_t *current_rvd = current->spa_root_vdev;
-
- load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC);
- load_concrete_ms_allocatable_trees(current, SM_FREE);
-
- for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) {
- vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i];
- vdev_t *current_vd = current_rvd->vdev_child[i];
-
- if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) {
- /*
- * See comment in verify_checkpoint_vdev_spacemaps()
- */
- ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops);
- continue;
- }
-
- for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) {
- metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m];
- metaslab_t *current_msp = current_vd->vdev_ms[m];
-
- (void) fprintf(stderr,
- "\rverifying vdev %llu of %llu, "
- "metaslab %llu of %llu ...",
- (longlong_t)current_vd->vdev_id,
- (longlong_t)current_rvd->vdev_children,
- (longlong_t)current_vd->vdev_ms[m]->ms_id,
- (longlong_t)current_vd->vdev_ms_count);
-
- /*
- * We walk through the ms_allocatable trees that
- * are loaded with the allocated blocks from the
- * ms_sm spacemaps of the checkpoint. For each
- * one of these ranges we ensure that none of them
- * exists in the ms_allocatable trees of the
- * current state which are loaded with the ranges
- * that are currently free.
- *
- * This way we ensure that none of the blocks that
- * are part of the checkpoint were freed by mistake.
- */
- range_tree_walk(ckpoint_msp->ms_allocatable,
- (range_tree_func_t *)range_tree_verify_not_present,
- current_msp->ms_allocatable);
- }
- }
-
- /* for cleaner progress output */
- (void) fprintf(stderr, "\n");
-}
-
-static void
-verify_checkpoint_blocks(spa_t *spa)
-{
- ASSERT(!dump_opt['L']);
-
- spa_t *checkpoint_spa;
- char *checkpoint_pool;
- nvlist_t *config = NULL;
- int error = 0;
-
- /*
- * We import the checkpointed state of the pool (under a different
- * name) so we can do verification on it against the current state
- * of the pool.
- */
- checkpoint_pool = import_checkpointed_state(spa->spa_name, config,
- NULL);
- ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0);
-
- error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG);
- if (error != 0) {
- fatal("Tried to open pool \"%s\" but spa_open() failed with "
- "error %d\n", checkpoint_pool, error);
- }
-
- /*
- * Ensure that ranges in the checkpoint space maps of each vdev
- * are allocated according to the checkpointed state's metaslab
- * space maps.
- */
- verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa);
-
- /*
- * Ensure that allocated ranges in the checkpoint's metaslab
- * space maps remain allocated in the metaslab space maps of
- * the current state.
- */
- verify_checkpoint_ms_spacemaps(checkpoint_spa, spa);
-
- /*
- * Once we are done, we get rid of the checkpointed state.
- */
- spa_close(checkpoint_spa, FTAG);
- free(checkpoint_pool);
-}
-
-static void
-dump_leftover_checkpoint_blocks(spa_t *spa)
-{
- vdev_t *rvd = spa->spa_root_vdev;
-
- for (uint64_t i = 0; i < rvd->vdev_children; i++) {
- vdev_t *vd = rvd->vdev_child[i];
-
- space_map_t *checkpoint_sm = NULL;
- uint64_t checkpoint_sm_obj;
-
- if (vd->vdev_top_zap == 0)
- continue;
-
- if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap,
- VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
- continue;
-
- VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap,
- VDEV_TOP_ZAP_POOL_CHECKPOINT_SM,
- sizeof (uint64_t), 1, &checkpoint_sm_obj));
-
- VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa),
- checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift));
- dump_spacemap(spa->spa_meta_objset, checkpoint_sm);
- space_map_close(checkpoint_sm);
- }
-}
-
-static int
-verify_checkpoint(spa_t *spa)
-{
- uberblock_t checkpoint;
- int error;
-
- if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT))
- return (0);
-
- error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
- DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t),
- sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint);
-
- if (error == ENOENT && !dump_opt['L']) {
- /*
- * If the feature is active but the uberblock is missing
- * then we must be in the middle of discarding the
- * checkpoint.
- */
- (void) printf("\nPartially discarded checkpoint "
- "state found:\n");
- dump_leftover_checkpoint_blocks(spa);
- return (0);
- } else if (error != 0) {
- (void) printf("lookup error %d when looking for "
- "checkpointed uberblock in MOS\n", error);
- return (error);
- }
- dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n");
-
- if (checkpoint.ub_checkpoint_txg == 0) {
- (void) printf("\nub_checkpoint_txg not set in checkpointed "
- "uberblock\n");
- error = 3;
- }
-
- if (error == 0 && !dump_opt['L'])
- verify_checkpoint_blocks(spa);
-
- return (error);
-}
-
-/* ARGSUSED */
-static void
-mos_leaks_cb(void *arg, uint64_t start, uint64_t size)
-{
- for (uint64_t i = start; i < size; i++) {
- (void) printf("MOS object %llu referenced but not allocated\n",
- (u_longlong_t)i);
- }
-}
-
-static range_tree_t *mos_refd_objs;
-
-static void
-mos_obj_refd(uint64_t obj)
-{
- if (obj != 0 && mos_refd_objs != NULL)
- range_tree_add(mos_refd_objs, obj, 1);
-}
-
-static void
-mos_leak_vdev(vdev_t *vd)
-{
- mos_obj_refd(vd->vdev_dtl_object);
- mos_obj_refd(vd->vdev_ms_array);
- mos_obj_refd(vd->vdev_top_zap);
- mos_obj_refd(vd->vdev_indirect_config.vic_births_object);
- mos_obj_refd(vd->vdev_indirect_config.vic_mapping_object);
- mos_obj_refd(vd->vdev_leaf_zap);
- if (vd->vdev_checkpoint_sm != NULL)
- mos_obj_refd(vd->vdev_checkpoint_sm->sm_object);
- if (vd->vdev_indirect_mapping != NULL) {
- mos_obj_refd(vd->vdev_indirect_mapping->
- vim_phys->vimp_counts_object);
- }
- if (vd->vdev_obsolete_sm != NULL)
- mos_obj_refd(vd->vdev_obsolete_sm->sm_object);
-
- for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
- metaslab_t *ms = vd->vdev_ms[m];
- mos_obj_refd(space_map_object(ms->ms_sm));
- }
-
- for (uint64_t c = 0; c < vd->vdev_children; c++) {
- mos_leak_vdev(vd->vdev_child[c]);
- }
-}
-
-static int
-dump_mos_leaks(spa_t *spa)
-{
- int rv = 0;
- objset_t *mos = spa->spa_meta_objset;
- dsl_pool_t *dp = spa->spa_dsl_pool;
-
- /* Visit and mark all referenced objects in the MOS */
-
- mos_obj_refd(DMU_POOL_DIRECTORY_OBJECT);
- mos_obj_refd(spa->spa_pool_props_object);
- mos_obj_refd(spa->spa_config_object);
- mos_obj_refd(spa->spa_ddt_stat_object);
- mos_obj_refd(spa->spa_feat_desc_obj);
- mos_obj_refd(spa->spa_feat_enabled_txg_obj);
- mos_obj_refd(spa->spa_feat_for_read_obj);
- mos_obj_refd(spa->spa_feat_for_write_obj);
- mos_obj_refd(spa->spa_history);
- mos_obj_refd(spa->spa_errlog_last);
- mos_obj_refd(spa->spa_errlog_scrub);
- mos_obj_refd(spa->spa_all_vdev_zaps);
- mos_obj_refd(spa->spa_dsl_pool->dp_bptree_obj);
- mos_obj_refd(spa->spa_dsl_pool->dp_tmp_userrefs_obj);
- mos_obj_refd(spa->spa_dsl_pool->dp_scan->scn_phys.scn_queue_obj);
- bpobj_count_refd(&spa->spa_deferred_bpobj);
- mos_obj_refd(dp->dp_empty_bpobj);
- bpobj_count_refd(&dp->dp_obsolete_bpobj);
- bpobj_count_refd(&dp->dp_free_bpobj);
- mos_obj_refd(spa->spa_l2cache.sav_object);
- mos_obj_refd(spa->spa_spares.sav_object);
-
- mos_obj_refd(spa->spa_condensing_indirect_phys.
- scip_next_mapping_object);
- mos_obj_refd(spa->spa_condensing_indirect_phys.
- scip_prev_obsolete_sm_object);
- if (spa->spa_condensing_indirect_phys.scip_next_mapping_object != 0) {
- vdev_indirect_mapping_t *vim =
- vdev_indirect_mapping_open(mos,
- spa->spa_condensing_indirect_phys.scip_next_mapping_object);
- mos_obj_refd(vim->vim_phys->vimp_counts_object);
- vdev_indirect_mapping_close(vim);
- }
-
- if (dp->dp_origin_snap != NULL) {
- dsl_dataset_t *ds;
-
- dsl_pool_config_enter(dp, FTAG);
- VERIFY0(dsl_dataset_hold_obj(dp,
- dsl_dataset_phys(dp->dp_origin_snap)->ds_next_snap_obj,
- FTAG, &ds));
- count_ds_mos_objects(ds);
- dump_deadlist(&ds->ds_deadlist);
- dsl_dataset_rele(ds, FTAG);
- dsl_pool_config_exit(dp, FTAG);
-
- count_ds_mos_objects(dp->dp_origin_snap);
- dump_deadlist(&dp->dp_origin_snap->ds_deadlist);
- }
- count_dir_mos_objects(dp->dp_mos_dir);
- if (dp->dp_free_dir != NULL)
- count_dir_mos_objects(dp->dp_free_dir);
- if (dp->dp_leak_dir != NULL)
- count_dir_mos_objects(dp->dp_leak_dir);
-
- mos_leak_vdev(spa->spa_root_vdev);
-
- for (uint64_t class = 0; class < DDT_CLASSES; class++) {
- for (uint64_t type = 0; type < DDT_TYPES; type++) {
- for (uint64_t cksum = 0;
- cksum < ZIO_CHECKSUM_FUNCTIONS; cksum++) {
- ddt_t *ddt = spa->spa_ddt[cksum];
- mos_obj_refd(ddt->ddt_object[type][class]);
- }
- }
- }
-
- /*
- * Visit all allocated objects and make sure they are referenced.
- */
- uint64_t object = 0;
- while (dmu_object_next(mos, &object, B_FALSE, 0) == 0) {
- if (range_tree_contains(mos_refd_objs, object, 1)) {
- range_tree_remove(mos_refd_objs, object, 1);
- } else {
- dmu_object_info_t doi;
- const char *name;
- dmu_object_info(mos, object, &doi);
- if (doi.doi_type & DMU_OT_NEWTYPE) {
- dmu_object_byteswap_t bswap =
- DMU_OT_BYTESWAP(doi.doi_type);
- name = dmu_ot_byteswap[bswap].ob_name;
- } else {
- name = dmu_ot[doi.doi_type].ot_name;
- }
-
- (void) printf("MOS object %llu (%s) leaked\n",
- (u_longlong_t)object, name);
- rv = 2;
- }
- }
- (void) range_tree_walk(mos_refd_objs, mos_leaks_cb, NULL);
- if (!range_tree_is_empty(mos_refd_objs))
- rv = 2;
- range_tree_vacate(mos_refd_objs, NULL, NULL);
- range_tree_destroy(mos_refd_objs);
- return (rv);
-}
-
-static void
-dump_zpool(spa_t *spa)
-{
- dsl_pool_t *dp = spa_get_dsl(spa);
- int rc = 0;
-
- if (dump_opt['S']) {
- dump_simulated_ddt(spa);
- return;
- }
-
- if (!dump_opt['e'] && dump_opt['C'] > 1) {
- (void) printf("\nCached configuration:\n");
- dump_nvlist(spa->spa_config, 8);
- }
-
- if (dump_opt['C'])
- dump_config(spa);
-
- if (dump_opt['u'])
- dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
-
- if (dump_opt['D'])
- dump_all_ddts(spa);
-
- if (dump_opt['d'] > 2 || dump_opt['m'])
- dump_metaslabs(spa);
- if (dump_opt['M'])
- dump_metaslab_groups(spa);
-
- if (dump_opt['d'] || dump_opt['i']) {
- mos_refd_objs = range_tree_create(NULL, NULL);
- dump_dir(dp->dp_meta_objset);
-
- if (dump_opt['d'] >= 3) {
- dsl_pool_t *dp = spa->spa_dsl_pool;
- dump_full_bpobj(&spa->spa_deferred_bpobj,
- "Deferred frees", 0);
- if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
- dump_full_bpobj(&dp->dp_free_bpobj,
- "Pool snapshot frees", 0);
- }
- if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
- ASSERT(spa_feature_is_enabled(spa,
- SPA_FEATURE_DEVICE_REMOVAL));
- dump_full_bpobj(&dp->dp_obsolete_bpobj,
- "Pool obsolete blocks", 0);
- }
-
- if (spa_feature_is_active(spa,
- SPA_FEATURE_ASYNC_DESTROY)) {
- dump_bptree(spa->spa_meta_objset,
- dp->dp_bptree_obj,
- "Pool dataset frees");
- }
- dump_dtl(spa->spa_root_vdev, 0);
- }
- (void) dmu_objset_find(spa_name(spa), dump_one_dir,
- NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
-
- if (rc == 0 && !dump_opt['L'])
- rc = dump_mos_leaks(spa);
-
- for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
- uint64_t refcount;
-
- if (!(spa_feature_table[f].fi_flags &
- ZFEATURE_FLAG_PER_DATASET)) {
- ASSERT0(dataset_feature_count[f]);
- continue;
- }
- (void) feature_get_refcount(spa,
- &spa_feature_table[f], &refcount);
- if (dataset_feature_count[f] != refcount) {
- (void) printf("%s feature refcount mismatch: "
- "%lld datasets != %lld refcount\n",
- spa_feature_table[f].fi_uname,
- (longlong_t)dataset_feature_count[f],
- (longlong_t)refcount);
- rc = 2;
- } else {
- (void) printf("Verified %s feature refcount "
- "of %llu is correct\n",
- spa_feature_table[f].fi_uname,
- (longlong_t)refcount);
- }
- }
-
- if (rc == 0) {
- rc = verify_device_removal_feature_counts(spa);
- }
- }
-
- if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
- rc = dump_block_stats(spa);
-
- if (rc == 0)
- rc = verify_spacemap_refcounts(spa);
-
- if (dump_opt['s'])
- show_pool_stats(spa);
-
- if (dump_opt['h'])
- dump_history(spa);
-
- if (rc == 0)
- rc = verify_checkpoint(spa);
-
- if (rc != 0) {
- dump_debug_buffer();
- exit(rc);
- }
-}
-
-#define ZDB_FLAG_CHECKSUM 0x0001
-#define ZDB_FLAG_DECOMPRESS 0x0002
-#define ZDB_FLAG_BSWAP 0x0004
-#define ZDB_FLAG_GBH 0x0008
-#define ZDB_FLAG_INDIRECT 0x0010
-#define ZDB_FLAG_PHYS 0x0020
-#define ZDB_FLAG_RAW 0x0040
-#define ZDB_FLAG_PRINT_BLKPTR 0x0080
-
-static int flagbits[256];
-
-static void
-zdb_print_blkptr(blkptr_t *bp, int flags)
-{
- char blkbuf[BP_SPRINTF_LEN];
-
- if (flags & ZDB_FLAG_BSWAP)
- byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
-
- snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
- (void) printf("%s\n", blkbuf);
-}
-
-static void
-zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
-{
- int i;
-
- for (i = 0; i < nbps; i++)
- zdb_print_blkptr(&bp[i], flags);
-}
-
-static void
-zdb_dump_gbh(void *buf, int flags)
-{
- zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
-}
-
-static void
-zdb_dump_block_raw(void *buf, uint64_t size, int flags)
-{
- if (flags & ZDB_FLAG_BSWAP)
- byteswap_uint64_array(buf, size);
- (void) write(1, buf, size);
-}
-
-static void
-zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
-{
- uint64_t *d = (uint64_t *)buf;
- unsigned nwords = size / sizeof (uint64_t);
- int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
- unsigned i, j;
- const char *hdr;
- char *c;
-
-
- if (do_bswap)
- hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
- else
- hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
-
- (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
-
- for (i = 0; i < nwords; i += 2) {
- (void) printf("%06llx: %016llx %016llx ",
- (u_longlong_t)(i * sizeof (uint64_t)),
- (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
- (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
-
- c = (char *)&d[i];
- for (j = 0; j < 2 * sizeof (uint64_t); j++)
- (void) printf("%c", isprint(c[j]) ? c[j] : '.');
- (void) printf("\n");
- }
-}
-
-/*
- * There are two acceptable formats:
- * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
- * child[.child]* - For example: 0.1.1
- *
- * The second form can be used to specify arbitrary vdevs anywhere
- * in the heirarchy. For example, in a pool with a mirror of
- * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
- */
-static vdev_t *
-zdb_vdev_lookup(vdev_t *vdev, const char *path)
-{
- char *s, *p, *q;
- unsigned i;
-
- if (vdev == NULL)
- return (NULL);
-
- /* First, assume the x.x.x.x format */
- i = strtoul(path, &s, 10);
- if (s == path || (s && *s != '.' && *s != '\0'))
- goto name;
- if (i >= vdev->vdev_children)
- return (NULL);
-
- vdev = vdev->vdev_child[i];
- if (*s == '\0')
- return (vdev);
- return (zdb_vdev_lookup(vdev, s+1));
-
-name:
- for (i = 0; i < vdev->vdev_children; i++) {
- vdev_t *vc = vdev->vdev_child[i];
-
- if (vc->vdev_path == NULL) {
- vc = zdb_vdev_lookup(vc, path);
- if (vc == NULL)
- continue;
- else
- return (vc);
- }
-
- p = strrchr(vc->vdev_path, '/');
- p = p ? p + 1 : vc->vdev_path;
- q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
-
- if (strcmp(vc->vdev_path, path) == 0)
- return (vc);
- if (strcmp(p, path) == 0)
- return (vc);
- if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
- return (vc);
- }
-
- return (NULL);
-}
-
-/* ARGSUSED */
-static int
-random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused)
-{
- return (random_get_pseudo_bytes(buf, len));
-}
-
-/*
- * Read a block from a pool and print it out. The syntax of the
- * block descriptor is:
- *
- * pool:vdev_specifier:offset:size[:flags]
- *
- * pool - The name of the pool you wish to read from
- * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
- * offset - offset, in hex, in bytes
- * size - Amount of data to read, in hex, in bytes
- * flags - A string of characters specifying options
- * b: Decode a blkptr at given offset within block
- * *c: Calculate and display checksums
- * d: Decompress data before dumping
- * e: Byteswap data before dumping
- * g: Display data as a gang block header
- * i: Display as an indirect block
- * p: Do I/O to physical offset
- * r: Dump raw data to stdout
- *
- * * = not yet implemented
- */
-static void
-zdb_read_block(char *thing, spa_t *spa)
-{
- blkptr_t blk, *bp = &blk;
- dva_t *dva = bp->blk_dva;
- int flags = 0;
- uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
- zio_t *zio;
- vdev_t *vd;
- abd_t *pabd;
- void *lbuf, *buf;
- const char *s, *vdev;
- char *p, *dup, *flagstr;
- int i, error;
-
- dup = strdup(thing);
- s = strtok(dup, ":");
- vdev = s ? s : "";
- s = strtok(NULL, ":");
- offset = strtoull(s ? s : "", NULL, 16);
- s = strtok(NULL, ":");
- size = strtoull(s ? s : "", NULL, 16);
- s = strtok(NULL, ":");
- if (s)
- flagstr = strdup(s);
- else
- flagstr = strdup("");
-
- s = NULL;
- if (size == 0)
- s = "size must not be zero";
- if (!IS_P2ALIGNED(size, DEV_BSIZE))
- s = "size must be a multiple of sector size";
- if (!IS_P2ALIGNED(offset, DEV_BSIZE))
- s = "offset must be a multiple of sector size";
- if (s) {
- (void) printf("Invalid block specifier: %s - %s\n", thing, s);
- free(flagstr);
- free(dup);
- return;
- }
-
- for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
- for (i = 0; flagstr[i]; i++) {
- int bit = flagbits[(uchar_t)flagstr[i]];
-
- if (bit == 0) {
- (void) printf("***Invalid flag: %c\n",
- flagstr[i]);
- continue;
- }
- flags |= bit;
-
- /* If it's not something with an argument, keep going */
- if ((bit & (ZDB_FLAG_CHECKSUM |
- ZDB_FLAG_PRINT_BLKPTR)) == 0)
- continue;
-
- p = &flagstr[i + 1];
- if (bit == ZDB_FLAG_PRINT_BLKPTR)
- blkptr_offset = strtoull(p, &p, 16);
- if (*p != ':' && *p != '\0') {
- (void) printf("***Invalid flag arg: '%s'\n", s);
- free(flagstr);
- free(dup);
- return;
- }
- i += p - &flagstr[i + 1]; /* skip over the number */
- }
- }
- free(flagstr);
-
- vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
- if (vd == NULL) {
- (void) printf("***Invalid vdev: %s\n", vdev);
- free(dup);
- return;
- } else {
- if (vd->vdev_path)
- (void) fprintf(stderr, "Found vdev: %s\n",
- vd->vdev_path);
- else
- (void) fprintf(stderr, "Found vdev type: %s\n",
- vd->vdev_ops->vdev_op_type);
- }
-
- psize = size;
- lsize = size;
-
- pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE);
- lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
-
- BP_ZERO(bp);
-
- DVA_SET_VDEV(&dva[0], vd->vdev_id);
- DVA_SET_OFFSET(&dva[0], offset);
- DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
- DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
-
- BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
-
- BP_SET_LSIZE(bp, lsize);
- BP_SET_PSIZE(bp, psize);
- BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
- BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
- BP_SET_TYPE(bp, DMU_OT_NONE);
- BP_SET_LEVEL(bp, 0);
- BP_SET_DEDUP(bp, 0);
- BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
-
- spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
- zio = zio_root(spa, NULL, NULL, 0);
-
- if (vd == vd->vdev_top) {
- /*
- * Treat this as a normal block read.
- */
- zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
- ZIO_PRIORITY_SYNC_READ,
- ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
- } else {
- /*
- * Treat this as a vdev child I/O.
- */
- zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
- psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
- ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
- ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
- ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL,
- NULL, NULL));
- }
-
- error = zio_wait(zio);
- spa_config_exit(spa, SCL_STATE, FTAG);
-
- if (error) {
- (void) printf("Read of %s failed, error: %d\n", thing, error);
- goto out;
- }
-
- if (flags & ZDB_FLAG_DECOMPRESS) {
- /*
- * We don't know how the data was compressed, so just try
- * every decompress function at every inflated blocksize.
- */
- enum zio_compress c;
- void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
- void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
-
- abd_copy_to_buf(pbuf2, pabd, psize);
-
- VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize,
- random_get_pseudo_bytes_cb, NULL));
-
- VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
- SPA_MAXBLOCKSIZE - psize));
-
- for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
- lsize -= SPA_MINBLOCKSIZE) {
- for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
- if (zio_decompress_data(c, pabd,
- lbuf, psize, lsize) == 0 &&
- zio_decompress_data_buf(c, pbuf2,
- lbuf2, psize, lsize) == 0 &&
- bcmp(lbuf, lbuf2, lsize) == 0)
- break;
- }
- if (c != ZIO_COMPRESS_FUNCTIONS)
- break;
- lsize -= SPA_MINBLOCKSIZE;
- }
-
- umem_free(pbuf2, SPA_MAXBLOCKSIZE);
- umem_free(lbuf2, SPA_MAXBLOCKSIZE);
-
- if (lsize <= psize) {
- (void) printf("Decompress of %s failed\n", thing);
- goto out;
- }
- buf = lbuf;
- size = lsize;
- } else {
- buf = abd_to_buf(pabd);
- size = psize;
- }
-
- if (flags & ZDB_FLAG_PRINT_BLKPTR)
- zdb_print_blkptr((blkptr_t *)(void *)
- ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
- else if (flags & ZDB_FLAG_RAW)
- zdb_dump_block_raw(buf, size, flags);
- else if (flags & ZDB_FLAG_INDIRECT)
- zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
- flags);
- else if (flags & ZDB_FLAG_GBH)
- zdb_dump_gbh(buf, flags);
- else
- zdb_dump_block(thing, buf, size, flags);
-
-out:
- abd_free(pabd);
- umem_free(lbuf, SPA_MAXBLOCKSIZE);
- free(dup);
-}
-
-static void
-zdb_embedded_block(char *thing)
-{
- blkptr_t bp;
- unsigned long long *words = (void *)&bp;
- char *buf;
- int err;
-
- bzero(&bp, sizeof (bp));
- err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
- "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
- words + 0, words + 1, words + 2, words + 3,
- words + 4, words + 5, words + 6, words + 7,
- words + 8, words + 9, words + 10, words + 11,
- words + 12, words + 13, words + 14, words + 15);
- if (err != 16) {
- (void) fprintf(stderr, "invalid input format\n");
- exit(1);
- }
- ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
- buf = malloc(SPA_MAXBLOCKSIZE);
- if (buf == NULL) {
- (void) fprintf(stderr, "out of memory\n");
- exit(1);
- }
- err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
- if (err != 0) {
- (void) fprintf(stderr, "decode failed: %u\n", err);
- free(buf);
- exit(1);
- }
- zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
- free(buf);
-}
-
-int
-main(int argc, char **argv)
-{
- int c;
- struct rlimit rl = { 1024, 1024 };
- spa_t *spa = NULL;
- objset_t *os = NULL;
- int dump_all = 1;
- int verbose = 0;
- int error = 0;
- char **searchdirs = NULL;
- int nsearch = 0;
- char *target, *target_pool;
- nvlist_t *policy = NULL;
- uint64_t max_txg = UINT64_MAX;
- int flags = ZFS_IMPORT_MISSING_LOG;
- int rewind = ZPOOL_NEVER_REWIND;
- char *spa_config_path_env;
- boolean_t target_is_spa = B_TRUE;
- nvlist_t *cfg = NULL;
-
- (void) setrlimit(RLIMIT_NOFILE, &rl);
- (void) enable_extended_FILE_stdio(-1, -1);
-
- dprintf_setup(&argc, argv);
-
- /*
- * If there is an environment variable SPA_CONFIG_PATH it overrides
- * default spa_config_path setting. If -U flag is specified it will
- * override this environment variable settings once again.
- */
- spa_config_path_env = getenv("SPA_CONFIG_PATH");
- if (spa_config_path_env != NULL)
- spa_config_path = spa_config_path_env;
-
- while ((c = getopt(argc, argv,
- "AbcCdDeEFGhiI:klLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
- switch (c) {
- case 'b':
- case 'c':
- case 'C':
- case 'd':
- case 'D':
- case 'E':
- case 'G':
- case 'h':
- case 'i':
- case 'l':
- case 'm':
- case 'M':
- case 'O':
- case 'R':
- case 's':
- case 'S':
- case 'u':
- dump_opt[c]++;
- dump_all = 0;
- break;
- case 'A':
- case 'e':
- case 'F':
- case 'k':
- case 'L':
- case 'P':
- case 'q':
- case 'X':
- dump_opt[c]++;
- break;
- /* NB: Sort single match options below. */
- case 'I':
- max_inflight = strtoull(optarg, NULL, 0);
- if (max_inflight == 0) {
- (void) fprintf(stderr, "maximum number "
- "of inflight I/Os must be greater "
- "than 0\n");
- usage();
- }
- break;
- case 'o':
- error = set_global_var(optarg);
- if (error != 0)
- usage();
- break;
- case 'p':
- if (searchdirs == NULL) {
- searchdirs = umem_alloc(sizeof (char *),
- UMEM_NOFAIL);
- } else {
- char **tmp = umem_alloc((nsearch + 1) *
- sizeof (char *), UMEM_NOFAIL);
- bcopy(searchdirs, tmp, nsearch *
- sizeof (char *));
- umem_free(searchdirs,
- nsearch * sizeof (char *));
- searchdirs = tmp;
- }
- searchdirs[nsearch++] = optarg;
- break;
- case 't':
- max_txg = strtoull(optarg, NULL, 0);
- if (max_txg < TXG_INITIAL) {
- (void) fprintf(stderr, "incorrect txg "
- "specified: %s\n", optarg);
- usage();
- }
- break;
- case 'U':
- spa_config_path = optarg;
- if (spa_config_path[0] != '/') {
- (void) fprintf(stderr,
- "cachefile must be an absolute path "
- "(i.e. start with a slash)\n");
- usage();
- }
- break;
- case 'v':
- verbose++;
- break;
- case 'V':
- flags = ZFS_IMPORT_VERBATIM;
- break;
- case 'x':
- vn_dumpdir = optarg;
- break;
- default:
- usage();
- break;
- }
- }
-
- if (!dump_opt['e'] && searchdirs != NULL) {
- (void) fprintf(stderr, "-p option requires use of -e\n");
- usage();
- }
-
- /*
- * ZDB does not typically re-read blocks; therefore limit the ARC
- * to 256 MB, which can be used entirely for metadata.
- */
- zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
-
- /*
- * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
- * "zdb -b" uses traversal prefetch which uses async reads.
- * For good performance, let several of them be active at once.
- */
- zfs_vdev_async_read_max_active = 10;
-
- /*
- * Disable reference tracking for better performance.
- */
- reference_tracking_enable = B_FALSE;
-
- /*
- * Do not fail spa_load when spa_load_verify fails. This is needed
- * to load non-idle pools.
- */
- spa_load_verify_dryrun = B_TRUE;
-
- kernel_init(FREAD);
- g_zfs = libzfs_init();
- if (g_zfs == NULL)
- fatal("Fail to initialize zfs");
-
- if (dump_all)
- verbose = MAX(verbose, 1);
-
- for (c = 0; c < 256; c++) {
- if (dump_all && strchr("AeEFklLOPRSX", c) == NULL)
- dump_opt[c] = 1;
- if (dump_opt[c])
- dump_opt[c] += verbose;
- }
-
- aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
- zfs_recover = (dump_opt['A'] > 1);
-
- argc -= optind;
- argv += optind;
-
- if (argc < 2 && dump_opt['R'])
- usage();
-
- if (dump_opt['E']) {
- if (argc != 1)
- usage();
- zdb_embedded_block(argv[0]);
- return (0);
- }
-
- if (argc < 1) {
- if (!dump_opt['e'] && dump_opt['C']) {
- dump_cachefile(spa_config_path);
- return (0);
- }
- usage();
- }
-
- if (dump_opt['l'])
- return (dump_label(argv[0]));
-
- if (dump_opt['O']) {
- if (argc != 2)
- usage();
- dump_opt['v'] = verbose + 3;
- return (dump_path(argv[0], argv[1]));
- }
-
- if (dump_opt['X'] || dump_opt['F'])
- rewind = ZPOOL_DO_REWIND |
- (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
-
- if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
- nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 ||
- nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0)
- fatal("internal error: %s", strerror(ENOMEM));
-
- error = 0;
- target = argv[0];
-
- if (strpbrk(target, "/@") != NULL) {
- size_t targetlen;
-
- target_pool = strdup(target);
- *strpbrk(target_pool, "/@") = '\0';
-
- target_is_spa = B_FALSE;
- targetlen = strlen(target);
- if (targetlen && target[targetlen - 1] == '/')
- target[targetlen - 1] = '\0';
- } else {
- target_pool = target;
- }
-
- if (dump_opt['e']) {
- importargs_t args = { 0 };
-
- args.paths = nsearch;
- args.path = searchdirs;
- args.can_be_active = B_TRUE;
-
- error = zpool_tryimport(g_zfs, target_pool, &cfg, &args);
-
- if (error == 0) {
-
- if (nvlist_add_nvlist(cfg,
- ZPOOL_LOAD_POLICY, policy) != 0) {
- fatal("can't open '%s': %s",
- target, strerror(ENOMEM));
- }
-
- if (dump_opt['C'] > 1) {
- (void) printf("\nConfiguration for import:\n");
- dump_nvlist(cfg, 8);
- }
-
- /*
- * Disable the activity check to allow examination of
- * active pools.
- */
- error = spa_import(target_pool, cfg, NULL,
- flags | ZFS_IMPORT_SKIP_MMP);
- }
- }
-
- char *checkpoint_pool = NULL;
- char *checkpoint_target = NULL;
- if (dump_opt['k']) {
- checkpoint_pool = import_checkpointed_state(target, cfg,
- &checkpoint_target);
-
- if (checkpoint_target != NULL)
- target = checkpoint_target;
-
- }
-
- if (error == 0) {
- if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) {
- ASSERT(checkpoint_pool != NULL);
- ASSERT(checkpoint_target == NULL);
-
- error = spa_open(checkpoint_pool, &spa, FTAG);
- if (error != 0) {
- fatal("Tried to open pool \"%s\" but "
- "spa_open() failed with error %d\n",
- checkpoint_pool, error);
- }
-
- } else if (target_is_spa || dump_opt['R']) {
- zdb_set_skip_mmp(target);
- error = spa_open_rewind(target, &spa, FTAG, policy,
- NULL);
- if (error) {
- /*
- * If we're missing the log device then
- * try opening the pool after clearing the
- * log state.
- */
- mutex_enter(&spa_namespace_lock);
- if ((spa = spa_lookup(target)) != NULL &&
- spa->spa_log_state == SPA_LOG_MISSING) {
- spa->spa_log_state = SPA_LOG_CLEAR;
- error = 0;
- }
- mutex_exit(&spa_namespace_lock);
-
- if (!error) {
- error = spa_open_rewind(target, &spa,
- FTAG, policy, NULL);
- }
- }
- } else {
- zdb_set_skip_mmp(target);
- error = open_objset(target, DMU_OST_ANY, FTAG, &os);
- }
- }
- nvlist_free(policy);
-
- if (error)
- fatal("can't open '%s': %s", target, strerror(error));
-
- argv++;
- argc--;
- if (!dump_opt['R']) {
- if (argc > 0) {
- zopt_objects = argc;
- zopt_object = calloc(zopt_objects, sizeof (uint64_t));
- for (unsigned i = 0; i < zopt_objects; i++) {
- errno = 0;
- zopt_object[i] = strtoull(argv[i], NULL, 0);
- if (zopt_object[i] == 0 && errno != 0)
- fatal("bad number %s: %s",
- argv[i], strerror(errno));
- }
- }
- if (os != NULL) {
- dump_dir(os);
- } else if (zopt_objects > 0 && !dump_opt['m']) {
- dump_dir(spa->spa_meta_objset);
- } else {
- dump_zpool(spa);
- }
- } else {
- flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
- flagbits['c'] = ZDB_FLAG_CHECKSUM;
- flagbits['d'] = ZDB_FLAG_DECOMPRESS;
- flagbits['e'] = ZDB_FLAG_BSWAP;
- flagbits['g'] = ZDB_FLAG_GBH;
- flagbits['i'] = ZDB_FLAG_INDIRECT;
- flagbits['p'] = ZDB_FLAG_PHYS;
- flagbits['r'] = ZDB_FLAG_RAW;
-
- for (int i = 0; i < argc; i++)
- zdb_read_block(argv[i], spa);
- }
-
- if (dump_opt['k']) {
- free(checkpoint_pool);
- if (!target_is_spa)
- free(checkpoint_target);
- }
-
- if (os != NULL)
- close_objset(os, FTAG);
- else
- spa_close(spa, FTAG);
-
- fuid_table_destroy();
-
- dump_debug_buffer();
-
- libzfs_fini(g_zfs);
- kernel_fini();
-
- return (error);
-}