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path: root/sys/contrib/openzfs/module/zfs/zap_leaf.c
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Diffstat (limited to 'sys/contrib/openzfs/module/zfs/zap_leaf.c')
-rw-r--r--sys/contrib/openzfs/module/zfs/zap_leaf.c77
1 files changed, 34 insertions, 43 deletions
diff --git a/sys/contrib/openzfs/module/zfs/zap_leaf.c b/sys/contrib/openzfs/module/zfs/zap_leaf.c
index e6afb1c58c95..032aca92695e 100644
--- a/sys/contrib/openzfs/module/zfs/zap_leaf.c
+++ b/sys/contrib/openzfs/module/zfs/zap_leaf.c
@@ -41,7 +41,8 @@
#include <sys/zap_leaf.h>
#include <sys/arc.h>
-static uint16_t *zap_leaf_rehash_entry(zap_leaf_t *l, uint16_t entry);
+static uint16_t *zap_leaf_rehash_entry(zap_leaf_t *l, struct zap_leaf_entry *le,
+ uint16_t entry);
#define CHAIN_END 0xffff /* end of the chunk chain */
@@ -53,16 +54,6 @@ static uint16_t *zap_leaf_rehash_entry(zap_leaf_t *l, uint16_t entry);
#define LEAF_HASH_ENTPTR(l, h) (&zap_leaf_phys(l)->l_hash[LEAF_HASH(l, h)])
static void
-zap_memset(void *a, int c, size_t n)
-{
- char *cp = a;
- char *cpend = cp + n;
-
- while (cp < cpend)
- *cp++ = c;
-}
-
-static void
stv(int len, void *addr, uint64_t value)
{
switch (len) {
@@ -79,7 +70,7 @@ stv(int len, void *addr, uint64_t value)
*(uint64_t *)addr = value;
return;
default:
- cmn_err(CE_PANIC, "bad int len %d", len);
+ PANIC("bad int len %d", len);
}
}
@@ -96,13 +87,13 @@ ldv(int len, const void *addr)
case 8:
return (*(uint64_t *)addr);
default:
- cmn_err(CE_PANIC, "bad int len %d", len);
+ PANIC("bad int len %d", len);
}
return (0xFEEDFACEDEADBEEFULL);
}
void
-zap_leaf_byteswap(zap_leaf_phys_t *buf, int size)
+zap_leaf_byteswap(zap_leaf_phys_t *buf, size_t size)
{
zap_leaf_t l;
dmu_buf_t l_dbuf;
@@ -119,10 +110,10 @@ zap_leaf_byteswap(zap_leaf_phys_t *buf, int size)
buf->l_hdr.lh_prefix_len = BSWAP_16(buf->l_hdr.lh_prefix_len);
buf->l_hdr.lh_freelist = BSWAP_16(buf->l_hdr.lh_freelist);
- for (int i = 0; i < ZAP_LEAF_HASH_NUMENTRIES(&l); i++)
+ for (uint_t i = 0; i < ZAP_LEAF_HASH_NUMENTRIES(&l); i++)
buf->l_hash[i] = BSWAP_16(buf->l_hash[i]);
- for (int i = 0; i < ZAP_LEAF_NUMCHUNKS(&l); i++) {
+ for (uint_t i = 0; i < ZAP_LEAF_NUMCHUNKS(&l); i++) {
zap_leaf_chunk_t *lc = &ZAP_LEAF_CHUNK(&l, i);
struct zap_leaf_entry *le;
@@ -160,11 +151,11 @@ void
zap_leaf_init(zap_leaf_t *l, boolean_t sort)
{
l->l_bs = highbit64(l->l_dbuf->db_size) - 1;
- zap_memset(&zap_leaf_phys(l)->l_hdr, 0,
+ memset(&zap_leaf_phys(l)->l_hdr, 0,
sizeof (struct zap_leaf_header));
- zap_memset(zap_leaf_phys(l)->l_hash, CHAIN_END,
+ memset(zap_leaf_phys(l)->l_hash, CHAIN_END,
2*ZAP_LEAF_HASH_NUMENTRIES(l));
- for (int i = 0; i < ZAP_LEAF_NUMCHUNKS(l); i++) {
+ for (uint_t i = 0; i < ZAP_LEAF_NUMCHUNKS(l); i++) {
ZAP_LEAF_CHUNK(l, i).l_free.lf_type = ZAP_CHUNK_FREE;
ZAP_LEAF_CHUNK(l, i).l_free.lf_next = i+1;
}
@@ -185,7 +176,7 @@ zap_leaf_chunk_alloc(zap_leaf_t *l)
{
ASSERT(zap_leaf_phys(l)->l_hdr.lh_nfree > 0);
- int chunk = zap_leaf_phys(l)->l_hdr.lh_freelist;
+ uint_t chunk = zap_leaf_phys(l)->l_hdr.lh_freelist;
ASSERT3U(chunk, <, ZAP_LEAF_NUMCHUNKS(l));
ASSERT3U(ZAP_LEAF_CHUNK(l, chunk).l_free.lf_type, ==, ZAP_CHUNK_FREE);
@@ -223,28 +214,29 @@ zap_leaf_array_create(zap_leaf_t *l, const char *buf,
{
uint16_t chunk_head;
uint16_t *chunkp = &chunk_head;
- int byten = 0;
+ int byten = integer_size;
uint64_t value = 0;
int shift = (integer_size - 1) * 8;
int len = num_integers;
ASSERT3U(num_integers * integer_size, <=, ZAP_MAXVALUELEN);
+ if (len > 0)
+ value = ldv(integer_size, buf);
while (len > 0) {
uint16_t chunk = zap_leaf_chunk_alloc(l);
struct zap_leaf_array *la = &ZAP_LEAF_CHUNK(l, chunk).l_array;
la->la_type = ZAP_CHUNK_ARRAY;
for (int i = 0; i < ZAP_LEAF_ARRAY_BYTES; i++) {
- if (byten == 0)
- value = ldv(integer_size, buf);
la->la_array[i] = value >> shift;
value <<= 8;
- if (++byten == integer_size) {
- byten = 0;
- buf += integer_size;
+ if (--byten == 0) {
if (--len == 0)
break;
+ byten = integer_size;
+ buf += integer_size;
+ value = ldv(integer_size, buf);
}
}
@@ -264,7 +256,7 @@ zap_leaf_array_free(zap_leaf_t *l, uint16_t *chunkp)
*chunkp = CHAIN_END;
while (chunk != CHAIN_END) {
- int nextchunk = ZAP_LEAF_CHUNK(l, chunk).l_array.la_next;
+ uint_t nextchunk = ZAP_LEAF_CHUNK(l, chunk).l_array.la_next;
ASSERT3U(ZAP_LEAF_CHUNK(l, chunk).l_array.la_type, ==,
ZAP_CHUNK_ARRAY);
zap_leaf_chunk_free(l, chunk);
@@ -333,7 +325,7 @@ zap_leaf_array_read(zap_leaf_t *l, uint16_t chunk,
static boolean_t
zap_leaf_array_match(zap_leaf_t *l, zap_name_t *zn,
- int chunk, int array_numints)
+ uint_t chunk, int array_numints)
{
int bseen = 0;
@@ -562,7 +554,7 @@ zap_entry_create(zap_leaf_t *l, zap_name_t *zn, uint32_t cd,
uint64_t valuelen = integer_size * num_integers;
- int numchunks = 1 + ZAP_LEAF_ARRAY_NCHUNKS(zn->zn_key_orig_numints *
+ uint_t numchunks = 1 + ZAP_LEAF_ARRAY_NCHUNKS(zn->zn_key_orig_numints *
zn->zn_key_intlen) + ZAP_LEAF_ARRAY_NCHUNKS(valuelen);
if (numchunks > ZAP_LEAF_NUMCHUNKS(l))
return (SET_ERROR(E2BIG));
@@ -624,7 +616,7 @@ zap_entry_create(zap_leaf_t *l, zap_name_t *zn, uint32_t cd,
/* link it into the hash chain */
/* XXX if we did the search above, we could just use that */
- uint16_t *chunkp = zap_leaf_rehash_entry(l, chunk);
+ uint16_t *chunkp = zap_leaf_rehash_entry(l, le, chunk);
zap_leaf_phys(l)->l_hdr.lh_nentries++;
@@ -687,9 +679,8 @@ zap_entry_normalization_conflict(zap_entry_handle_t *zeh, zap_name_t *zn,
*/
static uint16_t *
-zap_leaf_rehash_entry(zap_leaf_t *l, uint16_t entry)
+zap_leaf_rehash_entry(zap_leaf_t *l, struct zap_leaf_entry *le, uint16_t entry)
{
- struct zap_leaf_entry *le = ZAP_LEAF_ENTRY(l, entry);
struct zap_leaf_entry *le2;
uint16_t *chunkp;
@@ -722,7 +713,7 @@ zap_leaf_transfer_array(zap_leaf_t *l, uint16_t chunk, zap_leaf_t *nl)
&ZAP_LEAF_CHUNK(nl, nchunk).l_array;
struct zap_leaf_array *la =
&ZAP_LEAF_CHUNK(l, chunk).l_array;
- int nextchunk = la->la_next;
+ uint_t nextchunk = la->la_next;
ASSERT3U(chunk, <, ZAP_LEAF_NUMCHUNKS(l));
ASSERT3U(nchunk, <, ZAP_LEAF_NUMCHUNKS(l));
@@ -739,7 +730,7 @@ zap_leaf_transfer_array(zap_leaf_t *l, uint16_t chunk, zap_leaf_t *nl)
}
static void
-zap_leaf_transfer_entry(zap_leaf_t *l, int entry, zap_leaf_t *nl)
+zap_leaf_transfer_entry(zap_leaf_t *l, uint_t entry, zap_leaf_t *nl)
{
struct zap_leaf_entry *le = ZAP_LEAF_ENTRY(l, entry);
ASSERT3U(le->le_type, ==, ZAP_CHUNK_ENTRY);
@@ -748,7 +739,7 @@ zap_leaf_transfer_entry(zap_leaf_t *l, int entry, zap_leaf_t *nl)
struct zap_leaf_entry *nle = ZAP_LEAF_ENTRY(nl, chunk);
*nle = *le; /* structure assignment */
- (void) zap_leaf_rehash_entry(nl, chunk);
+ (void) zap_leaf_rehash_entry(nl, nle, chunk);
nle->le_name_chunk = zap_leaf_transfer_array(l, le->le_name_chunk, nl);
nle->le_value_chunk =
@@ -766,7 +757,7 @@ zap_leaf_transfer_entry(zap_leaf_t *l, int entry, zap_leaf_t *nl)
void
zap_leaf_split(zap_leaf_t *l, zap_leaf_t *nl, boolean_t sort)
{
- int bit = 64 - 1 - zap_leaf_phys(l)->l_hdr.lh_prefix_len;
+ uint_t bit = 64 - 1 - zap_leaf_phys(l)->l_hdr.lh_prefix_len;
/* set new prefix and prefix_len */
zap_leaf_phys(l)->l_hdr.lh_prefix <<= 1;
@@ -777,7 +768,7 @@ zap_leaf_split(zap_leaf_t *l, zap_leaf_t *nl, boolean_t sort)
zap_leaf_phys(l)->l_hdr.lh_prefix_len;
/* break existing hash chains */
- zap_memset(zap_leaf_phys(l)->l_hash, CHAIN_END,
+ memset(zap_leaf_phys(l)->l_hash, CHAIN_END,
2*ZAP_LEAF_HASH_NUMENTRIES(l));
if (sort)
@@ -792,7 +783,7 @@ zap_leaf_split(zap_leaf_t *l, zap_leaf_t *nl, boolean_t sort)
* but this accesses memory more sequentially, and when we're
* called, the block is usually pretty full.
*/
- for (int i = 0; i < ZAP_LEAF_NUMCHUNKS(l); i++) {
+ for (uint_t i = 0; i < ZAP_LEAF_NUMCHUNKS(l); i++) {
struct zap_leaf_entry *le = ZAP_LEAF_ENTRY(l, i);
if (le->le_type != ZAP_CHUNK_ENTRY)
continue;
@@ -800,14 +791,14 @@ zap_leaf_split(zap_leaf_t *l, zap_leaf_t *nl, boolean_t sort)
if (le->le_hash & (1ULL << bit))
zap_leaf_transfer_entry(l, i, nl);
else
- (void) zap_leaf_rehash_entry(l, i);
+ (void) zap_leaf_rehash_entry(l, le, i);
}
}
void
zap_leaf_stats(zap_t *zap, zap_leaf_t *l, zap_stats_t *zs)
{
- int n = zap_f_phys(zap)->zap_ptrtbl.zt_shift -
+ uint_t n = zap_f_phys(zap)->zap_ptrtbl.zt_shift -
zap_leaf_phys(l)->l_hdr.lh_prefix_len;
n = MIN(n, ZAP_HISTOGRAM_SIZE-1);
zs->zs_leafs_with_2n_pointers[n]++;
@@ -823,9 +814,9 @@ zap_leaf_stats(zap_t *zap, zap_leaf_t *l, zap_stats_t *zs)
n = MIN(n, ZAP_HISTOGRAM_SIZE-1);
zs->zs_blocks_n_tenths_full[n]++;
- for (int i = 0; i < ZAP_LEAF_HASH_NUMENTRIES(l); i++) {
- int nentries = 0;
- int chunk = zap_leaf_phys(l)->l_hash[i];
+ for (uint_t i = 0; i < ZAP_LEAF_HASH_NUMENTRIES(l); i++) {
+ uint_t nentries = 0;
+ uint_t chunk = zap_leaf_phys(l)->l_hash[i];
while (chunk != CHAIN_END) {
struct zap_leaf_entry *le =
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 11:41:41 +0000