zfs: merge openzfs/zfs@aee26af27 (zfs-2.1-release) into stable/13

Notable upstream pull request merges:
  #12172 Use wmsum for arc, abd, dbuf and zfetch statistics
  #12227 Revert Consolidate arc_buf allocation checks
  #12273 zfs_metaslab_mem_limit should be 25 instead of 75
  #12266 Fix flag copying in resume case
  #12276 Update cache file when setting compatibility property

Obtained from:	OpenZFS
OpenZFS commit:	aee26af277c91abeb0e1cfe27cc48cc328fdb881

57 files changed, 1276 insertions, 470 deletions

diff --git a/sys/contrib/openzfs/.github/ISSUE_TEMPLATE/config.yml b/sys/contrib/openzfs/.github/ISSUE_TEMPLATE/config.yml
index 952414f66ace..ecaaa182103c 100644
--- a/sys/contrib/openzfs/.github/ISSUE_TEMPLATE/config.yml
+++ b/sys/contrib/openzfs/.github/ISSUE_TEMPLATE/config.yml
@@ -10,5 +10,5 @@ contact_links:
     url: https://lists.freebsd.org/mailman/listinfo/freebsd-fs
     about: Get community support for OpenZFS on FreeBSD
   - name: OpenZFS on IRC
-    url: https://kiwiirc.com/nextclient/irc.libera.chat/openzfs
+    url: https://web.libera.chat/#openzfs
     about: Use IRC to get community support for OpenZFS
diff --git a/sys/contrib/openzfs/cmd/ztest/ztest.c b/sys/contrib/openzfs/cmd/ztest/ztest.c
index 73694b0b352b..a580396ebd8a 100644
--- a/sys/contrib/openzfs/cmd/ztest/ztest.c
+++ b/sys/contrib/openzfs/cmd/ztest/ztest.c
@@ -6669,7 +6669,7 @@ ztest_initialize(ztest_ds_t *zd, uint64_t id)
 	char *path = strdup(rand_vd->vdev_path);
 	boolean_t active = rand_vd->vdev_initialize_thread != NULL;
 
-	zfs_dbgmsg("vd %px, guid %llu", rand_vd, guid);
+	zfs_dbgmsg("vd %px, guid %llu", rand_vd, (u_longlong_t)guid);
 	spa_config_exit(spa, SCL_VDEV, FTAG);
 
 	uint64_t cmd = ztest_random(POOL_INITIALIZE_FUNCS);
@@ -6741,7 +6741,7 @@ ztest_trim(ztest_ds_t *zd, uint64_t id)
 	char *path = strdup(rand_vd->vdev_path);
 	boolean_t active = rand_vd->vdev_trim_thread != NULL;
 
-	zfs_dbgmsg("vd %p, guid %llu", rand_vd, guid);
+	zfs_dbgmsg("vd %p, guid %llu", rand_vd, (u_longlong_t)guid);
 	spa_config_exit(spa, SCL_VDEV, FTAG);
 
 	uint64_t cmd = ztest_random(POOL_TRIM_FUNCS);
diff --git a/sys/contrib/openzfs/contrib/pam_zfs_key/pam_zfs_key.c b/sys/contrib/openzfs/contrib/pam_zfs_key/pam_zfs_key.c
index 4cafc37b9b47..0856c7534f0d 100644
--- a/sys/contrib/openzfs/contrib/pam_zfs_key/pam_zfs_key.c
+++ b/sys/contrib/openzfs/contrib/pam_zfs_key/pam_zfs_key.c
@@ -82,7 +82,11 @@ alloc_pw_size(size_t len)
 		return (NULL);
 	}
 	pw->len = len;
-	pw->value = malloc(len);
+	/*
+	 * The use of malloc() triggers a spurious gcc 11 -Wmaybe-uninitialized
+	 * warning in the mlock() function call below, so use calloc().
+	 */
+	pw->value = calloc(len, 1);
 	if (!pw->value) {
 		free(pw);
 		return (NULL);
@@ -99,7 +103,11 @@ alloc_pw_string(const char *source)
 		return (NULL);
 	}
 	pw->len = strlen(source) + 1;
-	pw->value = malloc(pw->len);
+	/*
+	 * The use of malloc() triggers a spurious gcc 11 -Wmaybe-uninitialized
+	 * warning in the mlock() function call below, so use calloc().
+	 */
+	pw->value = calloc(pw->len, 1);
 	if (!pw->value) {
 		free(pw);
 		return (NULL);
diff --git a/sys/contrib/openzfs/include/sys/abd_impl.h b/sys/contrib/openzfs/include/sys/abd_impl.h
index 435a8dc6d9ce..6bce08cfa343 100644
--- a/sys/contrib/openzfs/include/sys/abd_impl.h
+++ b/sys/contrib/openzfs/include/sys/abd_impl.h
@@ -27,6 +27,7 @@
 #define	_ABD_IMPL_H
 
 #include <sys/abd.h>
+#include <sys/wmsum.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -82,9 +83,8 @@ void abd_iter_unmap(struct abd_iter *);
 /*
  * Helper macros
  */
-#define	ABDSTAT(stat)		(abd_stats.stat.value.ui64)
 #define	ABDSTAT_INCR(stat, val) \
-	atomic_add_64(&abd_stats.stat.value.ui64, (val))
+	wmsum_add(&abd_sums.stat, (val))
 #define	ABDSTAT_BUMP(stat)	ABDSTAT_INCR(stat, 1)
 #define	ABDSTAT_BUMPDOWN(stat)	ABDSTAT_INCR(stat, -1)
 
diff --git a/sys/contrib/openzfs/include/sys/arc_impl.h b/sys/contrib/openzfs/include/sys/arc_impl.h
index c01da46e01e3..1f341ec94faf 100644
--- a/sys/contrib/openzfs/include/sys/arc_impl.h
+++ b/sys/contrib/openzfs/include/sys/arc_impl.h
@@ -33,6 +33,7 @@
 #include <sys/zio_crypt.h>
 #include <sys/zthr.h>
 #include <sys/aggsum.h>
+#include <sys/wmsum.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -563,7 +564,6 @@ typedef struct arc_stats {
 	kstat_named_t arcstat_c;
 	kstat_named_t arcstat_c_min;
 	kstat_named_t arcstat_c_max;
-	/* Not updated directly; only synced in arc_kstat_update. */
 	kstat_named_t arcstat_size;
 	/*
 	 * Number of compressed bytes stored in the arc_buf_hdr_t's b_pabd.
@@ -592,14 +592,12 @@ typedef struct arc_stats {
 	 * (allocated via arc_buf_hdr_t_full and arc_buf_hdr_t_l2only
 	 * caches), and arc_buf_t structures (allocated via arc_buf_t
 	 * cache).
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_hdr_size;
 	/*
 	 * Number of bytes consumed by ARC buffers of type equal to
 	 * ARC_BUFC_DATA. This is generally consumed by buffers backing
 	 * on disk user data (e.g. plain file contents).
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_data_size;
 	/*
@@ -607,22 +605,18 @@ typedef struct arc_stats {
 	 * ARC_BUFC_METADATA. This is generally consumed by buffers
 	 * backing on disk data that is used for internal ZFS
 	 * structures (e.g. ZAP, dnode, indirect blocks, etc).
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_metadata_size;
 	/*
 	 * Number of bytes consumed by dmu_buf_impl_t objects.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_dbuf_size;
 	/*
 	 * Number of bytes consumed by dnode_t objects.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_dnode_size;
 	/*
 	 * Number of bytes consumed by bonus buffers.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_bonus_size;
 #if defined(COMPAT_FREEBSD11)
@@ -637,7 +631,6 @@ typedef struct arc_stats {
 	 * arc_anon state. This includes *all* buffers in the arc_anon
 	 * state; e.g. data, metadata, evictable, and unevictable buffers
 	 * are all included in this value.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_anon_size;
 	/*
@@ -645,7 +638,6 @@ typedef struct arc_stats {
 	 * following criteria: backing buffers of type ARC_BUFC_DATA,
 	 * residing in the arc_anon state, and are eligible for eviction
 	 * (e.g. have no outstanding holds on the buffer).
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_anon_evictable_data;
 	/*
@@ -653,7 +645,6 @@ typedef struct arc_stats {
 	 * following criteria: backing buffers of type ARC_BUFC_METADATA,
 	 * residing in the arc_anon state, and are eligible for eviction
 	 * (e.g. have no outstanding holds on the buffer).
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_anon_evictable_metadata;
 	/*
@@ -661,7 +652,6 @@ typedef struct arc_stats {
 	 * arc_mru state. This includes *all* buffers in the arc_mru
 	 * state; e.g. data, metadata, evictable, and unevictable buffers
 	 * are all included in this value.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mru_size;
 	/*
@@ -669,7 +659,6 @@ typedef struct arc_stats {
 	 * following criteria: backing buffers of type ARC_BUFC_DATA,
 	 * residing in the arc_mru state, and are eligible for eviction
 	 * (e.g. have no outstanding holds on the buffer).
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mru_evictable_data;
 	/*
@@ -677,7 +666,6 @@ typedef struct arc_stats {
 	 * following criteria: backing buffers of type ARC_BUFC_METADATA,
 	 * residing in the arc_mru state, and are eligible for eviction
 	 * (e.g. have no outstanding holds on the buffer).
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mru_evictable_metadata;
 	/*
@@ -688,21 +676,18 @@ typedef struct arc_stats {
 	 * don't actually have ARC buffers linked off of these headers.
 	 * Thus, *if* the headers had associated ARC buffers, these
 	 * buffers *would have* consumed this number of bytes.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mru_ghost_size;
 	/*
 	 * Number of bytes that *would have been* consumed by ARC
 	 * buffers that are eligible for eviction, of type
 	 * ARC_BUFC_DATA, and linked off the arc_mru_ghost state.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mru_ghost_evictable_data;
 	/*
 	 * Number of bytes that *would have been* consumed by ARC
 	 * buffers that are eligible for eviction, of type
 	 * ARC_BUFC_METADATA, and linked off the arc_mru_ghost state.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mru_ghost_evictable_metadata;
 	/*
@@ -710,42 +695,36 @@ typedef struct arc_stats {
 	 * arc_mfu state. This includes *all* buffers in the arc_mfu
 	 * state; e.g. data, metadata, evictable, and unevictable buffers
 	 * are all included in this value.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mfu_size;
 	/*
 	 * Number of bytes consumed by ARC buffers that are eligible for
 	 * eviction, of type ARC_BUFC_DATA, and reside in the arc_mfu
 	 * state.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mfu_evictable_data;
 	/*
 	 * Number of bytes consumed by ARC buffers that are eligible for
 	 * eviction, of type ARC_BUFC_METADATA, and reside in the
 	 * arc_mfu state.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mfu_evictable_metadata;
 	/*
 	 * Total number of bytes that *would have been* consumed by ARC
 	 * buffers in the arc_mfu_ghost state. See the comment above
 	 * arcstat_mru_ghost_size for more details.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mfu_ghost_size;
 	/*
 	 * Number of bytes that *would have been* consumed by ARC
 	 * buffers that are eligible for eviction, of type
 	 * ARC_BUFC_DATA, and linked off the arc_mfu_ghost state.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mfu_ghost_evictable_data;
 	/*
 	 * Number of bytes that *would have been* consumed by ARC
 	 * buffers that are eligible for eviction, of type
 	 * ARC_BUFC_METADATA, and linked off the arc_mru_ghost state.
-	 * Not updated directly; only synced in arc_kstat_update.
 	 */
 	kstat_named_t arcstat_mfu_ghost_evictable_metadata;
 	kstat_named_t arcstat_l2_hits;
@@ -779,7 +758,6 @@ typedef struct arc_stats {
 	kstat_named_t arcstat_l2_io_error;
 	kstat_named_t arcstat_l2_lsize;
 	kstat_named_t arcstat_l2_psize;
-	/* Not updated directly; only synced in arc_kstat_update. */
 	kstat_named_t arcstat_l2_hdr_size;
 	/*
 	 * Number of L2ARC log blocks written. These are used for restoring the
@@ -860,7 +838,6 @@ typedef struct arc_stats {
 	kstat_named_t arcstat_tempreserve;
 	kstat_named_t arcstat_loaned_bytes;
 	kstat_named_t arcstat_prune;
-	/* Not updated directly; only synced in arc_kstat_update. */
 	kstat_named_t arcstat_meta_used;
 	kstat_named_t arcstat_meta_limit;
 	kstat_named_t arcstat_dnode_limit;
@@ -876,6 +853,96 @@ typedef struct arc_stats {
 	kstat_named_t arcstat_abd_chunk_waste_size;
 } arc_stats_t;
 
+typedef struct arc_sums {
+	wmsum_t arcstat_hits;
+	wmsum_t arcstat_misses;
+	wmsum_t arcstat_demand_data_hits;
+	wmsum_t arcstat_demand_data_misses;
+	wmsum_t arcstat_demand_metadata_hits;
+	wmsum_t arcstat_demand_metadata_misses;
+	wmsum_t arcstat_prefetch_data_hits;
+	wmsum_t arcstat_prefetch_data_misses;
+	wmsum_t arcstat_prefetch_metadata_hits;
+	wmsum_t arcstat_prefetch_metadata_misses;
+	wmsum_t arcstat_mru_hits;
+	wmsum_t arcstat_mru_ghost_hits;
+	wmsum_t arcstat_mfu_hits;
+	wmsum_t arcstat_mfu_ghost_hits;
+	wmsum_t arcstat_deleted;
+	wmsum_t arcstat_mutex_miss;
+	wmsum_t arcstat_access_skip;
+	wmsum_t arcstat_evict_skip;
+	wmsum_t arcstat_evict_not_enough;
+	wmsum_t arcstat_evict_l2_cached;
+	wmsum_t arcstat_evict_l2_eligible;
+	wmsum_t arcstat_evict_l2_eligible_mfu;
+	wmsum_t arcstat_evict_l2_eligible_mru;
+	wmsum_t arcstat_evict_l2_ineligible;
+	wmsum_t arcstat_evict_l2_skip;
+	wmsum_t arcstat_hash_collisions;
+	wmsum_t arcstat_hash_chains;
+	aggsum_t arcstat_size;
+	wmsum_t arcstat_compressed_size;
+	wmsum_t arcstat_uncompressed_size;
+	wmsum_t arcstat_overhead_size;
+	wmsum_t arcstat_hdr_size;
+	wmsum_t arcstat_data_size;
+	wmsum_t arcstat_metadata_size;
+	wmsum_t arcstat_dbuf_size;
+	aggsum_t arcstat_dnode_size;
+	wmsum_t arcstat_bonus_size;
+	wmsum_t arcstat_l2_hits;
+	wmsum_t arcstat_l2_misses;
+	wmsum_t arcstat_l2_prefetch_asize;
+	wmsum_t arcstat_l2_mru_asize;
+	wmsum_t arcstat_l2_mfu_asize;
+	wmsum_t arcstat_l2_bufc_data_asize;
+	wmsum_t arcstat_l2_bufc_metadata_asize;
+	wmsum_t arcstat_l2_feeds;
+	wmsum_t arcstat_l2_rw_clash;
+	wmsum_t arcstat_l2_read_bytes;
+	wmsum_t arcstat_l2_write_bytes;
+	wmsum_t arcstat_l2_writes_sent;
+	wmsum_t arcstat_l2_writes_done;
+	wmsum_t arcstat_l2_writes_error;
+	wmsum_t arcstat_l2_writes_lock_retry;
+	wmsum_t arcstat_l2_evict_lock_retry;
+	wmsum_t arcstat_l2_evict_reading;
+	wmsum_t arcstat_l2_evict_l1cached;
+	wmsum_t arcstat_l2_free_on_write;
+	wmsum_t arcstat_l2_abort_lowmem;
+	wmsum_t arcstat_l2_cksum_bad;
+	wmsum_t arcstat_l2_io_error;
+	wmsum_t arcstat_l2_lsize;
+	wmsum_t arcstat_l2_psize;
+	aggsum_t arcstat_l2_hdr_size;
+	wmsum_t arcstat_l2_log_blk_writes;
+	wmsum_t arcstat_l2_log_blk_asize;
+	wmsum_t arcstat_l2_log_blk_count;
+	wmsum_t arcstat_l2_rebuild_success;
+	wmsum_t arcstat_l2_rebuild_abort_unsupported;
+	wmsum_t arcstat_l2_rebuild_abort_io_errors;
+	wmsum_t arcstat_l2_rebuild_abort_dh_errors;
+	wmsum_t arcstat_l2_rebuild_abort_cksum_lb_errors;
+	wmsum_t arcstat_l2_rebuild_abort_lowmem;
+	wmsum_t arcstat_l2_rebuild_size;
+	wmsum_t arcstat_l2_rebuild_asize;
+	wmsum_t arcstat_l2_rebuild_bufs;
+	wmsum_t arcstat_l2_rebuild_bufs_precached;
+	wmsum_t arcstat_l2_rebuild_log_blks;
+	wmsum_t arcstat_memory_throttle_count;
+	wmsum_t arcstat_memory_direct_count;
+	wmsum_t arcstat_memory_indirect_count;
+	wmsum_t arcstat_prune;
+	aggsum_t arcstat_meta_used;
+	wmsum_t arcstat_async_upgrade_sync;
+	wmsum_t arcstat_demand_hit_predictive_prefetch;
+	wmsum_t arcstat_demand_hit_prescient_prefetch;
+	wmsum_t arcstat_raw_size;
+	wmsum_t arcstat_cached_only_in_progress;
+	wmsum_t arcstat_abd_chunk_waste_size;
+} arc_sums_t;
+
 typedef struct arc_evict_waiter {
 	list_node_t aew_node;
 	kcondvar_t aew_cv;
@@ -885,7 +952,7 @@ typedef struct arc_evict_waiter {
 #define	ARCSTAT(stat)	(arc_stats.stat.value.ui64)
 
 #define	ARCSTAT_INCR(stat, val) \
-	atomic_add_64(&arc_stats.stat.value.ui64, (val))
+	wmsum_add(&arc_sums.stat, (val))
 
 #define	ARCSTAT_BUMP(stat)	ARCSTAT_INCR(stat, 1)
 #define	ARCSTAT_BUMPDOWN(stat)	ARCSTAT_INCR(stat, -1)
@@ -899,6 +966,7 @@ typedef struct arc_evict_waiter {
 
 extern taskq_t *arc_prune_taskq;
 extern arc_stats_t arc_stats;
+extern arc_sums_t arc_sums;
 extern hrtime_t arc_growtime;
 extern boolean_t arc_warm;
 extern int arc_grow_retry;
@@ -906,7 +974,6 @@ extern int arc_no_grow_shift;
 extern int arc_shrink_shift;
 extern kmutex_t arc_prune_mtx;
 extern list_t arc_prune_list;
-extern aggsum_t arc_size;
 extern arc_state_t	*arc_mfu;
 extern arc_state_t	*arc_mru;
 extern uint_t zfs_arc_pc_percent;
diff --git a/sys/contrib/openzfs/include/sys/crypto/api.h b/sys/contrib/openzfs/include/sys/crypto/api.h
index 7c3c465513de..8aecfeaff0f4 100644
--- a/sys/contrib/openzfs/include/sys/crypto/api.h
+++ b/sys/contrib/openzfs/include/sys/crypto/api.h
@@ -58,7 +58,7 @@ typedef struct {
  */
 
 #define	CRYPTO_MECH_INVALID	((uint64_t)-1)
-extern crypto_mech_type_t crypto_mech2id(crypto_mech_name_t name);
+extern crypto_mech_type_t crypto_mech2id(char *name);
 
 /*
  * Create and destroy context templates.
diff --git a/sys/contrib/openzfs/include/sys/dnode.h b/sys/contrib/openzfs/include/sys/dnode.h
index 3208b60f0e7b..de6492bb7618 100644
--- a/sys/contrib/openzfs/include/sys/dnode.h
+++ b/sys/contrib/openzfs/include/sys/dnode.h
@@ -171,7 +171,7 @@ enum dnode_dirtycontext {
  * example, reading 32 dnodes from a 16k dnode block and all of the spill
  * blocks could issue 33 separate reads. Now suppose those dnodes have size
  * 1024 and therefore don't need spill blocks. Then the worst case number
- * of blocks read is reduced to from 33 to two--one per dnode block.
+ * of blocks read is reduced from 33 to two--one per dnode block.
  *
  * ZFS-on-Linux systems that make heavy use of extended attributes benefit
  * from this feature. In particular, ZFS-on-Linux supports the xattr=sa
@@ -232,8 +232,8 @@ typedef struct dnode_phys {
 	 * Both dn_pad2 and dn_pad3 are protected by the block's MAC. This
 	 * allows us to protect any fields that might be added here in the
 	 * future. In either case, developers will want to check
-	 * zio_crypt_init_uios_dnode() to ensure the new field is being
-	 * protected properly.
+	 * zio_crypt_init_uios_dnode() and zio_crypt_do_dnode_hmac_updates()
+	 * to ensure the new field is being protected and updated properly.
 	 */
 	uint64_t dn_pad3[4];
 
diff --git a/sys/contrib/openzfs/include/sys/zfs_debug.h b/sys/contrib/openzfs/include/sys/zfs_debug.h
index 8b9629fb5e25..7b103510dd07 100644
--- a/sys/contrib/openzfs/include/sys/zfs_debug.h
+++ b/sys/contrib/openzfs/include/sys/zfs_debug.h
@@ -61,7 +61,7 @@ extern int zfs_dbgmsg_enable;
 extern void __set_error(const char *file, const char *func, int line, int err);
 extern void __zfs_dbgmsg(char *buf);
 extern void __dprintf(boolean_t dprint, const char *file, const char *func,
-    int line, const char *fmt, ...);
+    int line, const char *fmt, ...)  __attribute__((format(printf, 5, 6)));
 
 /*
  * Some general principles for using zfs_dbgmsg():
diff --git a/sys/contrib/openzfs/lib/libzfs/libzfs_sendrecv.c b/sys/contrib/openzfs/lib/libzfs/libzfs_sendrecv.c
index 410c34888ab1..5e7d06465d35 100644
--- a/sys/contrib/openzfs/lib/libzfs/libzfs_sendrecv.c
+++ b/sys/contrib/openzfs/lib/libzfs/libzfs_sendrecv.c
@@ -1743,6 +1743,10 @@ zfs_send_resume_impl(libzfs_handle_t *hdl, sendflags_t *flags, int outfd,
 			tmpflags.compress = B_TRUE;
 		if (lzc_flags & LZC_SEND_FLAG_EMBED_DATA)
 			tmpflags.embed_data = B_TRUE;
+		if (lzc_flags & LZC_SEND_FLAG_RAW)
+			tmpflags.raw = B_TRUE;
+		if (lzc_flags & LZC_SEND_FLAG_SAVED)
+			tmpflags.saved = B_TRUE;
 		error = estimate_size(zhp, fromname, outfd, &tmpflags,
 		    resumeobj, resumeoff, bytes, redact_book, errbuf);
 	}
diff --git a/sys/contrib/openzfs/lib/libzpool/kernel.c b/sys/contrib/openzfs/lib/libzpool/kernel.c
index cc8e534e7eb5..09812decefcf 100644
--- a/sys/contrib/openzfs/lib/libzpool/kernel.c
+++ b/sys/contrib/openzfs/lib/libzpool/kernel.c
@@ -796,7 +796,7 @@ kernel_init(int mode)
 
 	physmem = sysconf(_SC_PHYS_PAGES);
 
-	dprintf("physmem = %llu pages (%.2f GB)\n", physmem,
+	dprintf("physmem = %llu pages (%.2f GB)\n", (u_longlong_t)physmem,
 	    (double)physmem * sysconf(_SC_PAGE_SIZE) / (1ULL << 30));
 
 	(void) snprintf(hw_serial, sizeof (hw_serial), "%ld",
diff --git a/sys/contrib/openzfs/module/os/freebsd/zfs/abd_os.c b/sys/contrib/openzfs/module/os/freebsd/zfs/abd_os.c
index cb37fb362f8c..15d3dcef50e7 100644
--- a/sys/contrib/openzfs/module/os/freebsd/zfs/abd_os.c
+++ b/sys/contrib/openzfs/module/os/freebsd/zfs/abd_os.c
@@ -69,6 +69,15 @@ static abd_stats_t abd_stats = {
 	{ "linear_data_size",			KSTAT_DATA_UINT64 },
 };
 
+struct {
+	wmsum_t abdstat_struct_size;
+	wmsum_t abdstat_scatter_cnt;
+	wmsum_t abdstat_scatter_data_size;
+	wmsum_t abdstat_scatter_chunk_waste;
+	wmsum_t abdstat_linear_cnt;
+	wmsum_t abdstat_linear_data_size;
+} abd_sums;
+
 /*
  * The size of the chunks ABD allocates. Because the sizes allocated from the
  * kmem_cache can't change, this tunable can only be modified at boot. Changing
@@ -272,16 +281,46 @@ abd_free_zero_scatter(void)
 	kmem_free(abd_zero_buf, zfs_abd_chunk_size);
 }
 
+static int
+abd_kstats_update(kstat_t *ksp, int rw)
+{
+	abd_stats_t *as = ksp->ks_data;
+
+	if (rw == KSTAT_WRITE)
+		return (EACCES);
+	as->abdstat_struct_size.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_struct_size);
+	as->abdstat_scatter_cnt.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_scatter_cnt);
+	as->abdstat_scatter_data_size.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_scatter_data_size);
+	as->abdstat_scatter_chunk_waste.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_scatter_chunk_waste);
+	as->abdstat_linear_cnt.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_linear_cnt);
+	as->abdstat_linear_data_size.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_linear_data_size);
+	return (0);
+}
+
 void
 abd_init(void)
 {
 	abd_chunk_cache = kmem_cache_create("abd_chunk", zfs_abd_chunk_size, 0,
 	    NULL, NULL, NULL, NULL, 0, KMC_NODEBUG);
 
+	wmsum_init(&abd_sums.abdstat_struct_size, 0);
+	wmsum_init(&abd_sums.abdstat_scatter_cnt, 0);
+	wmsum_init(&abd_sums.abdstat_scatter_data_size, 0);
+	wmsum_init(&abd_sums.abdstat_scatter_chunk_waste, 0);
+	wmsum_init(&abd_sums.abdstat_linear_cnt, 0);
+	wmsum_init(&abd_sums.abdstat_linear_data_size, 0);
+
 	abd_ksp = kstat_create("zfs", 0, "abdstats", "misc", KSTAT_TYPE_NAMED,
 	    sizeof (abd_stats) / sizeof (kstat_named_t), KSTAT_FLAG_VIRTUAL);
 	if (abd_ksp != NULL) {
 		abd_ksp->ks_data = &abd_stats;
+		abd_ksp->ks_update = abd_kstats_update;
 		kstat_install(abd_ksp);
 	}
 
@@ -298,6 +337,13 @@ abd_fini(void)
 		abd_ksp = NULL;
 	}
 
+	wmsum_fini(&abd_sums.abdstat_struct_size);
+	wmsum_fini(&abd_sums.abdstat_scatter_cnt);
+	wmsum_fini(&abd_sums.abdstat_scatter_data_size);
+	wmsum_fini(&abd_sums.abdstat_scatter_chunk_waste);
+	wmsum_fini(&abd_sums.abdstat_linear_cnt);
+	wmsum_fini(&abd_sums.abdstat_linear_data_size);
+
 	kmem_cache_destroy(abd_chunk_cache);
 	abd_chunk_cache = NULL;
 }
diff --git a/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_debug.c b/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_debug.c
index 7239db80851c..dad342b06fc1 100644
--- a/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_debug.c
+++ b/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_debug.c
@@ -181,7 +181,7 @@ __set_error(const char *file, const char *func, int line, int err)
 	 * $ echo 512 >/sys/module/zfs/parameters/zfs_flags
 	 */
 	if (zfs_flags & ZFS_DEBUG_SET_ERROR)
-		__dprintf(B_FALSE, file, func, line, "error %lu", err);
+		__dprintf(B_FALSE, file, func, line, "error %lu", (ulong_t)err);
 }
 
 #ifdef _KERNEL
diff --git a/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vfsops.c b/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vfsops.c
index 516d7dd81d18..b05105e0bb22 100644
--- a/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vfsops.c
+++ b/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vfsops.c
@@ -1066,7 +1066,7 @@ zfsvfs_setup(zfsvfs_t *zfsvfs, boolean_t mounting)
 				    &zfsvfs->z_kstat, zs.zs_num_entries);
 				dprintf_ds(zfsvfs->z_os->os_dsl_dataset,
 				    "num_entries in unlinked set: %llu",
-				    zs.zs_num_entries);
+				    (u_longlong_t)zs.zs_num_entries);
 			}
 
 			zfs_unlinked_drain(zfsvfs);
@@ -1880,7 +1880,9 @@ zfs_fhtovp(vfs_t *vfsp, fid_t *fidp, int flags, vnode_t **vpp)
 
 	gen_mask = -1ULL >> (64 - 8 * i);
 
-	dprintf("getting %llu [%u mask %llx]\n", object, fid_gen, gen_mask);
+	dprintf("getting %llu [%llu mask %llx]\n", (u_longlong_t)object,
+	    (u_longlong_t)fid_gen,
+	    (u_longlong_t)gen_mask);
 	if ((err = zfs_zget(zfsvfs, object, &zp))) {
 		ZFS_EXIT(zfsvfs);
 		return (err);
@@ -1891,7 +1893,8 @@ zfs_fhtovp(vfs_t *vfsp, fid_t *fidp, int flags, vnode_t **vpp)
 	if (zp_gen == 0)
 		zp_gen = 1;
 	if (zp->z_unlinked || zp_gen != fid_gen) {
-		dprintf("znode gen (%u) != fid gen (%u)\n", zp_gen, fid_gen);
+		dprintf("znode gen (%llu) != fid gen (%llu)\n",
+		    (u_longlong_t)zp_gen, (u_longlong_t)fid_gen);
 		vrele(ZTOV(zp));
 		ZFS_EXIT(zfsvfs);
 		return (SET_ERROR(EINVAL));
diff --git a/sys/contrib/openzfs/module/os/linux/zfs/abd_os.c b/sys/contrib/openzfs/module/os/linux/zfs/abd_os.c
index 551a3cc8d1db..af543d6e3f7e 100644
--- a/sys/contrib/openzfs/module/os/linux/zfs/abd_os.c
+++ b/sys/contrib/openzfs/module/os/linux/zfs/abd_os.c
@@ -132,6 +132,20 @@ static abd_stats_t abd_stats = {
 	{ "scatter_sg_table_retry",		KSTAT_DATA_UINT64 },
 };
 
+struct {
+	wmsum_t abdstat_struct_size;
+	wmsum_t abdstat_linear_cnt;
+	wmsum_t abdstat_linear_data_size;
+	wmsum_t abdstat_scatter_cnt;
+	wmsum_t abdstat_scatter_data_size;
+	wmsum_t abdstat_scatter_chunk_waste;
+	wmsum_t abdstat_scatter_orders[MAX_ORDER];
+	wmsum_t abdstat_scatter_page_multi_chunk;
+	wmsum_t abdstat_scatter_page_multi_zone;
+	wmsum_t abdstat_scatter_page_alloc_retry;
+	wmsum_t abdstat_scatter_sg_table_retry;
+} abd_sums;
+
 #define	abd_for_each_sg(abd, sg, n, i)	\
 	for_each_sg(ABD_SCATTER(abd).abd_sgl, sg, n, i)
 
@@ -687,6 +701,40 @@ abd_free_zero_scatter(void)
 #endif /* _KERNEL */
 }
 
+static int
+abd_kstats_update(kstat_t *ksp, int rw)
+{
+	abd_stats_t *as = ksp->ks_data;
+
+	if (rw == KSTAT_WRITE)
+		return (EACCES);
+	as->abdstat_struct_size.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_struct_size);
+	as->abdstat_linear_cnt.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_linear_cnt);
+	as->abdstat_linear_data_size.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_linear_data_size);
+	as->abdstat_scatter_cnt.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_scatter_cnt);
+	as->abdstat_scatter_data_size.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_scatter_data_size);
+	as->abdstat_scatter_chunk_waste.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_scatter_chunk_waste);
+	for (int i = 0; i < MAX_ORDER; i++) {
+		as->abdstat_scatter_orders[i].value.ui64 =
+		    wmsum_value(&abd_sums.abdstat_scatter_orders[i]);
+	}
+	as->abdstat_scatter_page_multi_chunk.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_scatter_page_multi_chunk);
+	as->abdstat_scatter_page_multi_zone.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_scatter_page_multi_zone);
+	as->abdstat_scatter_page_alloc_retry.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_scatter_page_alloc_retry);
+	as->abdstat_scatter_sg_table_retry.value.ui64 =
+	    wmsum_value(&abd_sums.abdstat_scatter_sg_table_retry);
+	return (0);
+}
+
 void
 abd_init(void)
 {
@@ -695,6 +743,19 @@ abd_init(void)
 	abd_cache = kmem_cache_create("abd_t", sizeof (abd_t),
 	    0, NULL, NULL, NULL, NULL, NULL, 0);
 
+	wmsum_init(&abd_sums.abdstat_struct_size, 0);
+	wmsum_init(&abd_sums.abdstat_linear_cnt, 0);
+	wmsum_init(&abd_sums.abdstat_linear_data_size, 0);
+	wmsum_init(&abd_sums.abdstat_scatter_cnt, 0);
+	wmsum_init(&abd_sums.abdstat_scatter_data_size, 0);
+	wmsum_init(&abd_sums.abdstat_scatter_chunk_waste, 0);
+	for (i = 0; i < MAX_ORDER; i++)
+		wmsum_init(&abd_sums.abdstat_scatter_orders[i], 0);
+	wmsum_init(&abd_sums.abdstat_scatter_page_multi_chunk, 0);
+	wmsum_init(&abd_sums.abdstat_scatter_page_multi_zone, 0);
+	wmsum_init(&abd_sums.abdstat_scatter_page_alloc_retry, 0);
+	wmsum_init(&abd_sums.abdstat_scatter_sg_table_retry, 0);
+
 	abd_ksp = kstat_create("zfs", 0, "abdstats", "misc", KSTAT_TYPE_NAMED,
 	    sizeof (abd_stats) / sizeof (kstat_named_t), KSTAT_FLAG_VIRTUAL);
 	if (abd_ksp != NULL) {
@@ -705,6 +766,7 @@ abd_init(void)
 			    KSTAT_DATA_UINT64;
 		}
 		abd_ksp->ks_data = &abd_stats;
+		abd_ksp->ks_update = abd_kstats_update;
 		kstat_install(abd_ksp);
 	}
 
@@ -721,6 +783,19 @@ abd_fini(void)
 		abd_ksp = NULL;
 	}
 
+	wmsum_fini(&abd_sums.abdstat_struct_size);
+	wmsum_fini(&abd_sums.abdstat_linear_cnt);
+	wmsum_fini(&abd_sums.abdstat_linear_data_size);
+	wmsum_fini(&abd_sums.abdstat_scatter_cnt);
+	wmsum_fini(&abd_sums.abdstat_scatter_data_size);
+	wmsum_fini(&abd_sums.abdstat_scatter_chunk_waste);
+	for (int i = 0; i < MAX_ORDER; i++)
+		wmsum_fini(&abd_sums.abdstat_scatter_orders[i]);
+	wmsum_fini(&abd_sums.abdstat_scatter_page_multi_chunk);
+	wmsum_fini(&abd_sums.abdstat_scatter_page_multi_zone);
+	wmsum_fini(&abd_sums.abdstat_scatter_page_alloc_retry);
+	wmsum_fini(&abd_sums.abdstat_scatter_sg_table_retry);
+
 	if (abd_cache) {
 		kmem_cache_destroy(abd_cache);
 		abd_cache = NULL;
diff --git a/sys/contrib/openzfs/module/os/linux/zfs/arc_os.c b/sys/contrib/openzfs/module/os/linux/zfs/arc_os.c
index 465775a6748e..b03ad8318d1d 100644
--- a/sys/contrib/openzfs/module/os/linux/zfs/arc_os.c
+++ b/sys/contrib/openzfs/module/os/linux/zfs/arc_os.c
@@ -135,7 +135,7 @@ arc_available_memory(void)
 static uint64_t
 arc_evictable_memory(void)
 {
-	int64_t asize = aggsum_value(&arc_size);
+	int64_t asize = aggsum_value(&arc_sums.arcstat_size);
 	uint64_t arc_clean =
 	    zfs_refcount_count(&arc_mru->arcs_esize[ARC_BUFC_DATA]) +
 	    zfs_refcount_count(&arc_mru->arcs_esize[ARC_BUFC_METADATA]) +
diff --git a/sys/contrib/openzfs/module/os/linux/zfs/zfs_debug.c b/sys/contrib/openzfs/module/os/linux/zfs/zfs_debug.c
index 8d7f04097da8..98c9923d5927 100644
--- a/sys/contrib/openzfs/module/os/linux/zfs/zfs_debug.c
+++ b/sys/contrib/openzfs/module/os/linux/zfs/zfs_debug.c
@@ -127,7 +127,8 @@ __set_error(const char *file, const char *func, int line, int err)
 	 * $ echo 512 >/sys/module/zfs/parameters/zfs_flags
 	 */
 	if (zfs_flags & ZFS_DEBUG_SET_ERROR)
-		__dprintf(B_FALSE, file, func, line, "error %lu", err);
+		__dprintf(B_FALSE, file, func, line, "error %lu",
+		    (ulong_t)err);
 }
 
 void
diff --git a/sys/contrib/openzfs/module/os/linux/zfs/zio_crypt.c b/sys/contrib/openzfs/module/os/linux/zfs/zio_crypt.c
index 94406999cb89..52e62f4d1da4 100644
--- a/sys/contrib/openzfs/module/os/linux/zfs/zio_crypt.c
+++ b/sys/contrib/openzfs/module/os/linux/zfs/zio_crypt.c
@@ -190,7 +190,7 @@ unsigned long zfs_key_max_salt_uses = ZFS_KEY_MAX_SALT_USES_DEFAULT;
 
 typedef struct blkptr_auth_buf {
 	uint64_t bab_prop;			/* blk_prop - portable mask */
-	uint8_t bab_mac[ZIO_DATA_MAC_LEN];	/* MAC from blk_cksum */

+	uint8_t bab_mac[ZIO_DATA_MAC_LEN];	/* MAC from blk_cksum */
 	uint64_t bab_pad;			/* reserved for future use */
 } blkptr_auth_buf_t;
 
@@ -1045,17 +1045,23 @@ zio_crypt_do_dnode_hmac_updates(crypto_context_t ctx, uint64_t version,
     boolean_t should_bswap, dnode_phys_t *dnp)
 {
 	int ret, i;
-	dnode_phys_t *adnp;
+	dnode_phys_t *adnp, tmp_dncore;
+	size_t dn_core_size = offsetof(dnode_phys_t, dn_blkptr);
 	boolean_t le_bswap = (should_bswap == ZFS_HOST_BYTEORDER);
 	crypto_data_t cd;
-	uint8_t tmp_dncore[offsetof(dnode_phys_t, dn_blkptr)];
 
 	cd.cd_format = CRYPTO_DATA_RAW;
 	cd.cd_offset = 0;
 
-	/* authenticate the core dnode (masking out non-portable bits) */
-	bcopy(dnp, tmp_dncore, sizeof (tmp_dncore));
-	adnp = (dnode_phys_t *)tmp_dncore;
+	/*
+	 * Authenticate the core dnode (masking out non-portable bits).
+	 * We only copy the first 64 bytes we operate on to avoid the overhead
+	 * of copying 512-64 unneeded bytes. The compiler seems to be fine
+	 * with that.
+	 */
+	bcopy(dnp, &tmp_dncore, dn_core_size);
+	adnp = &tmp_dncore;
+
 	if (le_bswap) {
 		adnp->dn_datablkszsec = BSWAP_16(adnp->dn_datablkszsec);
 		adnp->dn_bonuslen = BSWAP_16(adnp->dn_bonuslen);
@@ -1065,7 +1071,7 @@ zio_crypt_do_dnode_hmac_updates(crypto_context_t ctx, uint64_t version,
 	adnp->dn_flags &= DNODE_CRYPT_PORTABLE_FLAGS_MASK;
 	adnp->dn_used = 0;
 
-	cd.cd_length = sizeof (tmp_dncore);
+	cd.cd_length = dn_core_size;
 	cd.cd_raw.iov_base = (char *)adnp;
 	cd.cd_raw.iov_len = cd.cd_length;
 
diff --git a/sys/contrib/openzfs/module/zfs/arc.c b/sys/contrib/openzfs/module/zfs/arc.c
index 300acc251fb7..7d892f4c7b9d 100644
--- a/sys/contrib/openzfs/module/zfs/arc.c
+++ b/sys/contrib/openzfs/module/zfs/arc.c
@@ -600,6 +600,8 @@ arc_stats_t arc_stats = {
 	{ "abd_chunk_waste_size",	KSTAT_DATA_UINT64 },
 };
 
+arc_sums_t arc_sums;
+
 #define	ARCSTAT_MAX(stat, val) {					\
 	uint64_t m;							\
 	while ((val) > (m = arc_stats.stat.value.ui64) &&		\
@@ -607,9 +609,6 @@ arc_stats_t arc_stats = {
 		continue;						\
 }
 
-#define	ARCSTAT_MAXSTAT(stat) \
-	ARCSTAT_MAX(stat##_max, arc_stats.stat.value.ui64)
-
 /*
  * We define a macro to allow ARC hits/misses to be easily broken down by
  * two separate conditions, giving a total of four different subtypes for
@@ -671,37 +670,8 @@ arc_state_t	*arc_mfu;
 /* max size for dnodes */
 #define	arc_dnode_size_limit	ARCSTAT(arcstat_dnode_limit)
 #define	arc_meta_min	ARCSTAT(arcstat_meta_min) /* min size for metadata */
-#define	arc_meta_max	ARCSTAT(arcstat_meta_max) /* max size of metadata */
 #define	arc_need_free	ARCSTAT(arcstat_need_free) /* waiting to be evicted */
 
-/* size of all b_rabd's in entire arc */
-#define	arc_raw_size	ARCSTAT(arcstat_raw_size)
-/* compressed size of entire arc */
-#define	arc_compressed_size	ARCSTAT(arcstat_compressed_size)
-/* uncompressed size of entire arc */
-#define	arc_uncompressed_size	ARCSTAT(arcstat_uncompressed_size)
-/* number of bytes in the arc from arc_buf_t's */
-#define	arc_overhead_size	ARCSTAT(arcstat_overhead_size)
-
-/*
- * There are also some ARC variables that we want to export, but that are
- * updated so often that having the canonical representation be the statistic
- * variable causes a performance bottleneck. We want to use aggsum_t's for these
- * instead, but still be able to export the kstat in the same way as before.
- * The solution is to always use the aggsum version, except in the kstat update
- * callback.
- */
-aggsum_t arc_size;
-aggsum_t arc_meta_used;
-wmsum_t astat_data_size;
-wmsum_t astat_metadata_size;
-wmsum_t astat_dbuf_size;
-aggsum_t astat_dnode_size;
-wmsum_t astat_bonus_size;
-wmsum_t astat_hdr_size;
-aggsum_t astat_l2_hdr_size;
-wmsum_t astat_abd_chunk_waste_size;
-
 hrtime_t arc_growtime;
 list_t arc_prune_list;
 kmutex_t arc_prune_mtx;
@@ -819,9 +789,6 @@ uint64_t zfs_crc64_table[256];
  */
 #define	L2ARC_FEED_TYPES	4
 
-#define	l2arc_writes_sent	ARCSTAT(arcstat_l2_writes_sent)
-#define	l2arc_writes_done	ARCSTAT(arcstat_l2_writes_done)
-
 /* L2ARC Performance Tunables */
 unsigned long l2arc_write_max = L2ARC_WRITE_SIZE;	/* def max write size */
 unsigned long l2arc_write_boost = L2ARC_WRITE_SIZE;	/* extra warmup write */
@@ -1085,9 +1052,9 @@ buf_hash_insert(arc_buf_hdr_t *hdr, kmutex_t **lockp)
 
 		ARCSTAT_MAX(arcstat_hash_chain_max, i);
 	}
-
-	ARCSTAT_BUMP(arcstat_hash_elements);
-	ARCSTAT_MAXSTAT(arcstat_hash_elements);
+	uint64_t he = atomic_inc_64_nv(
+	    &arc_stats.arcstat_hash_elements.value.ui64);
+	ARCSTAT_MAX(arcstat_hash_elements_max, he);
 
 	return (NULL);
 }
@@ -1111,7 +1078,7 @@ buf_hash_remove(arc_buf_hdr_t *hdr)
 	arc_hdr_clear_flags(hdr, ARC_FLAG_IN_HASH_TABLE);
 
 	/* collect some hash table performance data */
-	ARCSTAT_BUMPDOWN(arcstat_hash_elements);
+	atomic_dec_64(&arc_stats.arcstat_hash_elements.value.ui64);
 
 	if (buf_hash_table.ht_table[idx] &&
 	    buf_hash_table.ht_table[idx]->b_hash_next == NULL)
@@ -2646,25 +2613,25 @@ arc_space_consume(uint64_t space, arc_space_type_t type)
 	default:
 		break;
 	case ARC_SPACE_DATA:
-		wmsum_add(&astat_data_size, space);
+		ARCSTAT_INCR(arcstat_data_size, space);
 		break;
 	case ARC_SPACE_META:
-		wmsum_add(&astat_metadata_size, space);
+		ARCSTAT_INCR(arcstat_metadata_size, space);
 		break;
 	case ARC_SPACE_BONUS:
-		wmsum_add(&astat_bonus_size, space);
+		ARCSTAT_INCR(arcstat_bonus_size, space);
 		break;
 	case ARC_SPACE_DNODE:
-		aggsum_add(&astat_dnode_size, space);
+		aggsum_add(&arc_sums.arcstat_dnode_size, space);
 		break;
 	case ARC_SPACE_DBUF:
-		wmsum_add(&astat_dbuf_size, space);
+		ARCSTAT_INCR(arcstat_dbuf_size, space);
 		break;
 	case ARC_SPACE_HDRS:
-		wmsum_add(&astat_hdr_size, space);
+		ARCSTAT_INCR(arcstat_hdr_size, space);
 		break;
 	case ARC_SPACE_L2HDRS:
-		aggsum_add(&astat_l2_hdr_size, space);
+		aggsum_add(&arc_sums.arcstat_l2_hdr_size, space);
 		break;
 	case ARC_SPACE_ABD_CHUNK_WASTE:
 		/*
@@ -2673,14 +2640,14 @@ arc_space_consume(uint64_t space, arc_space_type_t type)
 		 * scatter ABD's come from the ARC, because other users are
 		 * very short-lived.
 		 */
-		wmsum_add(&astat_abd_chunk_waste_size, space);
+		ARCSTAT_INCR(arcstat_abd_chunk_waste_size, space);
 		break;
 	}
 
 	if (type != ARC_SPACE_DATA && type != ARC_SPACE_ABD_CHUNK_WASTE)
-		aggsum_add(&arc_meta_used, space);
+		aggsum_add(&arc_sums.arcstat_meta_used, space);
 
-	aggsum_add(&arc_size, space);
+	aggsum_add(&arc_sums.arcstat_size, space);
 }
 
 void
@@ -2692,45 +2659,41 @@ arc_space_return(uint64_t space, arc_space_type_t type)
 	default:
 		break;
 	case ARC_SPACE_DATA:
-		wmsum_add(&astat_data_size, -space);
+		ARCSTAT_INCR(arcstat_data_size, -space);
 		break;
 	case ARC_SPACE_META:
-		wmsum_add(&astat_metadata_size, -space);
+		ARCSTAT_INCR(arcstat_metadata_size, -space);
 		break;
 	case ARC_SPACE_BONUS:
-		wmsum_add(&astat_bonus_size, -space);
+		ARCSTAT_INCR(arcstat_bonus_size, -space);
 		break;
 	case ARC_SPACE_DNODE:
-		aggsum_add(&astat_dnode_size, -space);
+		aggsum_add(&arc_sums.arcstat_dnode_size, -space);
 		break;
 	case ARC_SPACE_DBUF:
-		wmsum_add(&astat_dbuf_size, -space);
+		ARCSTAT_INCR(arcstat_dbuf_size, -space);
 		break;
 	case ARC_SPACE_HDRS:
-		wmsum_add(&astat_hdr_size, -space);
+		ARCSTAT_INCR(arcstat_hdr_size, -space);
 		break;
 	case ARC_SPACE_L2HDRS:
-		aggsum_add(&astat_l2_hdr_size, -space);
+		aggsum_add(&arc_sums.arcstat_l2_hdr_size, -space);
 		break;
 	case ARC_SPACE_ABD_CHUNK_WASTE:
-		wmsum_add(&astat_abd_chunk_waste_size, -space);
+		ARCSTAT_INCR(arcstat_abd_chunk_waste_size, -space);
 		break;
 	}
 
 	if (type != ARC_SPACE_DATA && type != ARC_SPACE_ABD_CHUNK_WASTE) {
-		ASSERT(aggsum_compare(&arc_meta_used, space) >= 0);
-		/*
-		 * We use the upper bound here rather than the precise value
-		 * because the arc_meta_max value doesn't need to be
-		 * precise. It's only consumed by humans via arcstats.
-		 */
-		if (arc_meta_max < aggsum_upper_bound(&arc_meta_used))
-			arc_meta_max = aggsum_upper_bound(&arc_meta_used);
-		aggsum_add(&arc_meta_used, -space);
+		ASSERT(aggsum_compare(&arc_sums.arcstat_meta_used,
+		    space) >= 0);
+		ARCSTAT_MAX(arcstat_meta_max,
+		    aggsum_upper_bound(&arc_sums.arcstat_meta_used));
+		aggsum_add(&arc_sums.arcstat_meta_used, -space);
 	}
 
-	ASSERT(aggsum_compare(&arc_size, space) >= 0);
-	aggsum_add(&arc_size, -space);
+	ASSERT(aggsum_compare(&arc_sums.arcstat_size, space) >= 0);
+	aggsum_add(&arc_sums.arcstat_size, -space);
 }
 
 /*
@@ -4251,9 +4214,10 @@ arc_evict_state(arc_state_t *state, uint64_t spa, int64_t bytes,
 		 * Request that 10% of the LRUs be scanned by the superblock
 		 * shrinker.
 		 */
-		if (type == ARC_BUFC_DATA && aggsum_compare(&astat_dnode_size,
-		    arc_dnode_size_limit) > 0) {
-			arc_prune_async((aggsum_upper_bound(&astat_dnode_size) -
+		if (type == ARC_BUFC_DATA && aggsum_compare(
+		    &arc_sums.arcstat_dnode_size, arc_dnode_size_limit) > 0) {
+			arc_prune_async((aggsum_upper_bound(
+			    &arc_sums.arcstat_dnode_size) -
 			    arc_dnode_size_limit) / sizeof (dnode_t) /
 			    zfs_arc_dnode_reduce_percent);
 		}
@@ -4483,7 +4447,7 @@ restart:
 }
 
 /*
- * Evict metadata buffers from the cache, such that arc_meta_used is
+ * Evict metadata buffers from the cache, such that arcstat_meta_used is
  * capped by the arc_meta_limit tunable.
  */
 static uint64_t
@@ -4604,7 +4568,7 @@ arc_evict_type(arc_state_t *state)
 }
 
 /*
- * Evict buffers from the cache, such that arc_size is capped by arc_c.
+ * Evict buffers from the cache, such that arcstat_size is capped by arc_c.
  */
 static uint64_t
 arc_evict(void)
@@ -4612,8 +4576,8 @@ arc_evict(void)
 	uint64_t total_evicted = 0;
 	uint64_t bytes;
 	int64_t target;
-	uint64_t asize = aggsum_value(&arc_size);
-	uint64_t ameta = aggsum_value(&arc_meta_used);
+	uint64_t asize = aggsum_value(&arc_sums.arcstat_size);
+	uint64_t ameta = aggsum_value(&arc_sums.arcstat_meta_used);
 
 	/*
 	 * If we're over arc_meta_limit, we want to correct that before
@@ -4673,8 +4637,8 @@ arc_evict(void)
 	/*
 	 * Re-sum ARC stats after the first round of evictions.
 	 */
-	asize = aggsum_value(&arc_size);
-	ameta = aggsum_value(&arc_meta_used);
+	asize = aggsum_value(&arc_sums.arcstat_size);
+	ameta = aggsum_value(&arc_sums.arcstat_meta_used);
 
 
 	/*
@@ -4788,7 +4752,7 @@ arc_flush(spa_t *spa, boolean_t retry)
 void
 arc_reduce_target_size(int64_t to_free)
 {
-	uint64_t asize = aggsum_value(&arc_size);
+	uint64_t asize = aggsum_value(&arc_sums.arcstat_size);
 
 	/*
 	 * All callers want the ARC to actually evict (at least) this much
@@ -4841,8 +4805,8 @@ arc_kmem_reap_soon(void)
 	extern kmem_cache_t	*zio_data_buf_cache[];
 
 #ifdef _KERNEL
-	if ((aggsum_compare(&arc_meta_used, arc_meta_limit) >= 0) &&
-	    zfs_arc_meta_prune) {
+	if ((aggsum_compare(&arc_sums.arcstat_meta_used,
+	    arc_meta_limit) >= 0) && zfs_arc_meta_prune) {
 		/*
 		 * We are exceeding our meta-data cache limit.
 		 * Prune some entries to release holds on meta-data.
@@ -4945,7 +4909,7 @@ arc_evict_cb(void *arg, zthr_t *zthr)
 	 */
 	mutex_enter(&arc_evict_lock);
 	arc_evict_needed = !zthr_iscancelled(arc_evict_zthr) &&
-	    evicted > 0 && aggsum_compare(&arc_size, arc_c) > 0;
+	    evicted > 0 && aggsum_compare(&arc_sums.arcstat_size, arc_c) > 0;
 	if (!arc_evict_needed) {
 		/*
 		 * We're either no longer overflowing, or we
@@ -5158,7 +5122,7 @@ arc_adapt(int bytes, arc_state_t *state)
 	 * cache size, increment the target cache size
 	 */
 	ASSERT3U(arc_c, >=, 2ULL << SPA_MAXBLOCKSHIFT);
-	if (aggsum_upper_bound(&arc_size) >=
+	if (aggsum_upper_bound(&arc_sums.arcstat_size) >=
 	    arc_c - (2ULL << SPA_MAXBLOCKSHIFT)) {
 		atomic_add_64(&arc_c, (int64_t)bytes);
 		if (arc_c > arc_c_max)
@@ -5191,7 +5155,8 @@ arc_is_overflowing(void)
 	 * in the ARC. In practice, that's in the tens of MB, which is low
 	 * enough to be safe.
 	 */
-	return (aggsum_lower_bound(&arc_size) >= (int64_t)arc_c + overflow);
+	return (aggsum_lower_bound(&arc_sums.arcstat_size) >=
+	    (int64_t)arc_c + overflow);
 }
 
 static abd_t *
@@ -5360,7 +5325,7 @@ arc_get_data_impl(arc_buf_hdr_t *hdr, uint64_t size, void *tag,
 		 * If we are growing the cache, and we are adding anonymous
 		 * data, and we have outgrown arc_p, update arc_p
 		 */
-		if (aggsum_upper_bound(&arc_size) < arc_c &&
+		if (aggsum_upper_bound(&arc_sums.arcstat_size) < arc_c &&
 		    hdr->b_l1hdr.b_state == arc_anon &&
 		    (zfs_refcount_count(&arc_anon->arcs_size) +
 		    zfs_refcount_count(&arc_mru->arcs_size) > arc_p))
@@ -7219,8 +7184,11 @@ arc_tempreserve_space(spa_t *spa, uint64_t reserve, uint64_t txg)
 		    zfs_refcount_count(&arc_anon->arcs_esize[ARC_BUFC_DATA]);
 		dprintf("failing, arc_tempreserve=%lluK anon_meta=%lluK "
 		    "anon_data=%lluK tempreserve=%lluK rarc_c=%lluK\n",
-		    arc_tempreserve >> 10, meta_esize >> 10,
-		    data_esize >> 10, reserve >> 10, rarc_c >> 10);
+		    (u_longlong_t)arc_tempreserve >> 10,
+		    (u_longlong_t)meta_esize >> 10,
+		    (u_longlong_t)data_esize >> 10,
+		    (u_longlong_t)reserve >> 10,
+		    (u_longlong_t)rarc_c >> 10);
 #endif
 		DMU_TX_STAT_BUMP(dmu_tx_dirty_throttle);
 		return (SET_ERROR(ERESTART));
@@ -7245,55 +7213,219 @@ arc_kstat_update(kstat_t *ksp, int rw)
 {
 	arc_stats_t *as = ksp->ks_data;
 
-	if (rw == KSTAT_WRITE) {
+	if (rw == KSTAT_WRITE)
 		return (SET_ERROR(EACCES));
-	} else {
-		arc_kstat_update_state(arc_anon,
-		    &as->arcstat_anon_size,
-		    &as->arcstat_anon_evictable_data,
-		    &as->arcstat_anon_evictable_metadata);
-		arc_kstat_update_state(arc_mru,
-		    &as->arcstat_mru_size,
-		    &as->arcstat_mru_evictable_data,
-		    &as->arcstat_mru_evictable_metadata);
-		arc_kstat_update_state(arc_mru_ghost,
-		    &as->arcstat_mru_ghost_size,
-		    &as->arcstat_mru_ghost_evictable_data,
-		    &as->arcstat_mru_ghost_evictable_metadata);
-		arc_kstat_update_state(arc_mfu,
-		    &as->arcstat_mfu_size,
-		    &as->arcstat_mfu_evictable_data,
-		    &as->arcstat_mfu_evictable_metadata);
-		arc_kstat_update_state(arc_mfu_ghost,
-		    &as->arcstat_mfu_ghost_size,
-		    &as->arcstat_mfu_ghost_evictable_data,
-		    &as->arcstat_mfu_ghost_evictable_metadata);
-
-		ARCSTAT(arcstat_size) = aggsum_value(&arc_size);
-		ARCSTAT(arcstat_meta_used) = aggsum_value(&arc_meta_used);
-		ARCSTAT(arcstat_data_size) = wmsum_value(&astat_data_size);
-		ARCSTAT(arcstat_metadata_size) =
-		    wmsum_value(&astat_metadata_size);
-		ARCSTAT(arcstat_hdr_size) = wmsum_value(&astat_hdr_size);
-		ARCSTAT(arcstat_l2_hdr_size) = aggsum_value(&astat_l2_hdr_size);
-		ARCSTAT(arcstat_dbuf_size) = wmsum_value(&astat_dbuf_size);
+
+	as->arcstat_hits.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_hits);
+	as->arcstat_misses.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_misses);
+	as->arcstat_demand_data_hits.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_demand_data_hits);
+	as->arcstat_demand_data_misses.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_demand_data_misses);
+	as->arcstat_demand_metadata_hits.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_demand_metadata_hits);
+	as->arcstat_demand_metadata_misses.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_demand_metadata_misses);
+	as->arcstat_prefetch_data_hits.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_prefetch_data_hits);
+	as->arcstat_prefetch_data_misses.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_prefetch_data_misses);
+	as->arcstat_prefetch_metadata_hits.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_prefetch_metadata_hits);
+	as->arcstat_prefetch_metadata_misses.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_prefetch_metadata_misses);
+	as->arcstat_mru_hits.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_mru_hits);
+	as->arcstat_mru_ghost_hits.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_mru_ghost_hits);
+	as->arcstat_mfu_hits.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_mfu_hits);
+	as->arcstat_mfu_ghost_hits.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_mfu_ghost_hits);
+	as->arcstat_deleted.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_deleted);
+	as->arcstat_mutex_miss.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_mutex_miss);
+	as->arcstat_access_skip.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_access_skip);
+	as->arcstat_evict_skip.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_evict_skip);
+	as->arcstat_evict_not_enough.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_evict_not_enough);
+	as->arcstat_evict_l2_cached.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_evict_l2_cached);
+	as->arcstat_evict_l2_eligible.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_evict_l2_eligible);
+	as->arcstat_evict_l2_eligible_mfu.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_evict_l2_eligible_mfu);
+	as->arcstat_evict_l2_eligible_mru.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_evict_l2_eligible_mru);
+	as->arcstat_evict_l2_ineligible.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_evict_l2_ineligible);
+	as->arcstat_evict_l2_skip.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_evict_l2_skip);
+	as->arcstat_hash_collisions.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_hash_collisions);
+	as->arcstat_hash_chains.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_hash_chains);
+	as->arcstat_size.value.ui64 =
+	    aggsum_value(&arc_sums.arcstat_size);
+	as->arcstat_compressed_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_compressed_size);
+	as->arcstat_uncompressed_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_uncompressed_size);
+	as->arcstat_overhead_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_overhead_size);
+	as->arcstat_hdr_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_hdr_size);
+	as->arcstat_data_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_data_size);
+	as->arcstat_metadata_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_metadata_size);
+	as->arcstat_dbuf_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_dbuf_size);
 #if defined(COMPAT_FREEBSD11)
-		ARCSTAT(arcstat_other_size) = wmsum_value(&astat_bonus_size) +
-		    aggsum_value(&astat_dnode_size) +
-		    wmsum_value(&astat_dbuf_size);
+	as->arcstat_other_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_bonus_size) +
+	    aggsum_value(&arc_sums.arcstat_dnode_size) +
+	    wmsum_value(&arc_sums.arcstat_dbuf_size);
 #endif
-		ARCSTAT(arcstat_dnode_size) = aggsum_value(&astat_dnode_size);
-		ARCSTAT(arcstat_bonus_size) = wmsum_value(&astat_bonus_size);
-		ARCSTAT(arcstat_abd_chunk_waste_size) =
-		    wmsum_value(&astat_abd_chunk_waste_size);
 
-		as->arcstat_memory_all_bytes.value.ui64 =
-		    arc_all_memory();
-		as->arcstat_memory_free_bytes.value.ui64 =
-		    arc_free_memory();
-		as->arcstat_memory_available_bytes.value.i64 =
-		    arc_available_memory();
-	}
+	arc_kstat_update_state(arc_anon,
+	    &as->arcstat_anon_size,
+	    &as->arcstat_anon_evictable_data,
+	    &as->arcstat_anon_evictable_metadata);
+	arc_kstat_update_state(arc_mru,
+	    &as->arcstat_mru_size,
+	    &as->arcstat_mru_evictable_data,
+	    &as->arcstat_mru_evictable_metadata);
+	arc_kstat_update_state(arc_mru_ghost,
+	    &as->arcstat_mru_ghost_size,
+	    &as->arcstat_mru_ghost_evictable_data,
+	    &as->arcstat_mru_ghost_evictable_metadata);
+	arc_kstat_update_state(arc_mfu,
+	    &as->arcstat_mfu_size,
+	    &as->arcstat_mfu_evictable_data,
+	    &as->arcstat_mfu_evictable_metadata);
+	arc_kstat_update_state(arc_mfu_ghost,
+	    &as->arcstat_mfu_ghost_size,
+	    &as->arcstat_mfu_ghost_evictable_data,
+	    &as->arcstat_mfu_ghost_evictable_metadata);
+
+	as->arcstat_dnode_size.value.ui64 =
+	    aggsum_value(&arc_sums.arcstat_dnode_size);
+	as->arcstat_bonus_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_bonus_size);
+	as->arcstat_l2_hits.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_hits);
+	as->arcstat_l2_misses.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_misses);
+	as->arcstat_l2_prefetch_asize.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_prefetch_asize);
+	as->arcstat_l2_mru_asize.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_mru_asize);
+	as->arcstat_l2_mfu_asize.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_mfu_asize);
+	as->arcstat_l2_bufc_data_asize.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_bufc_data_asize);
+	as->arcstat_l2_bufc_metadata_asize.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_bufc_metadata_asize);
+	as->arcstat_l2_feeds.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_feeds);
+	as->arcstat_l2_rw_clash.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rw_clash);
+	as->arcstat_l2_read_bytes.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_read_bytes);
+	as->arcstat_l2_write_bytes.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_write_bytes);
+	as->arcstat_l2_writes_sent.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_writes_sent);
+	as->arcstat_l2_writes_done.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_writes_done);
+	as->arcstat_l2_writes_error.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_writes_error);
+	as->arcstat_l2_writes_lock_retry.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_writes_lock_retry);
+	as->arcstat_l2_evict_lock_retry.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_evict_lock_retry);
+	as->arcstat_l2_evict_reading.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_evict_reading);
+	as->arcstat_l2_evict_l1cached.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_evict_l1cached);
+	as->arcstat_l2_free_on_write.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_free_on_write);
+	as->arcstat_l2_abort_lowmem.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_abort_lowmem);
+	as->arcstat_l2_cksum_bad.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_cksum_bad);
+	as->arcstat_l2_io_error.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_io_error);
+	as->arcstat_l2_lsize.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_lsize);
+	as->arcstat_l2_psize.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_psize);
+	as->arcstat_l2_hdr_size.value.ui64 =
+	    aggsum_value(&arc_sums.arcstat_l2_hdr_size);
+	as->arcstat_l2_log_blk_writes.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_log_blk_writes);
+	as->arcstat_l2_log_blk_asize.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_log_blk_asize);
+	as->arcstat_l2_log_blk_count.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_log_blk_count);
+	as->arcstat_l2_rebuild_success.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_success);
+	as->arcstat_l2_rebuild_abort_unsupported.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_abort_unsupported);
+	as->arcstat_l2_rebuild_abort_io_errors.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_abort_io_errors);
+	as->arcstat_l2_rebuild_abort_dh_errors.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_abort_dh_errors);
+	as->arcstat_l2_rebuild_abort_cksum_lb_errors.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_abort_cksum_lb_errors);
+	as->arcstat_l2_rebuild_abort_lowmem.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_abort_lowmem);
+	as->arcstat_l2_rebuild_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_size);
+	as->arcstat_l2_rebuild_asize.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_asize);
+	as->arcstat_l2_rebuild_bufs.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_bufs);
+	as->arcstat_l2_rebuild_bufs_precached.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_bufs_precached);
+	as->arcstat_l2_rebuild_log_blks.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_l2_rebuild_log_blks);
+	as->arcstat_memory_throttle_count.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_memory_throttle_count);
+	as->arcstat_memory_direct_count.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_memory_direct_count);
+	as->arcstat_memory_indirect_count.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_memory_indirect_count);
+
+	as->arcstat_memory_all_bytes.value.ui64 =
+	    arc_all_memory();
+	as->arcstat_memory_free_bytes.value.ui64 =
+	    arc_free_memory();
+	as->arcstat_memory_available_bytes.value.i64 =
+	    arc_available_memory();
+
+	as->arcstat_prune.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_prune);
+	as->arcstat_meta_used.value.ui64 =
+	    aggsum_value(&arc_sums.arcstat_meta_used);
+	as->arcstat_async_upgrade_sync.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_async_upgrade_sync);
+	as->arcstat_demand_hit_predictive_prefetch.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_demand_hit_predictive_prefetch);
+	as->arcstat_demand_hit_prescient_prefetch.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_demand_hit_prescient_prefetch);
+	as->arcstat_raw_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_raw_size);
+	as->arcstat_cached_only_in_progress.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_cached_only_in_progress);
+	as->arcstat_abd_chunk_waste_size.value.ui64 =
+	    wmsum_value(&arc_sums.arcstat_abd_chunk_waste_size);
 
 	return (0);
 }
@@ -7516,16 +7648,93 @@ arc_state_init(void)
 	zfs_refcount_create(&arc_mfu_ghost->arcs_size);
 	zfs_refcount_create(&arc_l2c_only->arcs_size);
 
-	aggsum_init(&arc_meta_used, 0);
-	aggsum_init(&arc_size, 0);
-	wmsum_init(&astat_data_size, 0);
-	wmsum_init(&astat_metadata_size, 0);
-	wmsum_init(&astat_hdr_size, 0);
-	aggsum_init(&astat_l2_hdr_size, 0);
-	wmsum_init(&astat_bonus_size, 0);
-	aggsum_init(&astat_dnode_size, 0);
-	wmsum_init(&astat_dbuf_size, 0);
-	wmsum_init(&astat_abd_chunk_waste_size, 0);
+	wmsum_init(&arc_sums.arcstat_hits, 0);
+	wmsum_init(&arc_sums.arcstat_misses, 0);
+	wmsum_init(&arc_sums.arcstat_demand_data_hits, 0);
+	wmsum_init(&arc_sums.arcstat_demand_data_misses, 0);
+	wmsum_init(&arc_sums.arcstat_demand_metadata_hits, 0);
+	wmsum_init(&arc_sums.arcstat_demand_metadata_misses, 0);
+	wmsum_init(&arc_sums.arcstat_prefetch_data_hits, 0);
+	wmsum_init(&arc_sums.arcstat_prefetch_data_misses, 0);
+	wmsum_init(&arc_sums.arcstat_prefetch_metadata_hits, 0);
+	wmsum_init(&arc_sums.arcstat_prefetch_metadata_misses, 0);
+	wmsum_init(&arc_sums.arcstat_mru_hits, 0);
+	wmsum_init(&arc_sums.arcstat_mru_ghost_hits, 0);
+	wmsum_init(&arc_sums.arcstat_mfu_hits, 0);
+	wmsum_init(&arc_sums.arcstat_mfu_ghost_hits, 0);
+	wmsum_init(&arc_sums.arcstat_deleted, 0);
+	wmsum_init(&arc_sums.arcstat_mutex_miss, 0);
+	wmsum_init(&arc_sums.arcstat_access_skip, 0);
+	wmsum_init(&arc_sums.arcstat_evict_skip, 0);
+	wmsum_init(&arc_sums.arcstat_evict_not_enough, 0);
+	wmsum_init(&arc_sums.arcstat_evict_l2_cached, 0);
+	wmsum_init(&arc_sums.arcstat_evict_l2_eligible, 0);
+	wmsum_init(&arc_sums.arcstat_evict_l2_eligible_mfu, 0);
+	wmsum_init(&arc_sums.arcstat_evict_l2_eligible_mru, 0);
+	wmsum_init(&arc_sums.arcstat_evict_l2_ineligible, 0);
+	wmsum_init(&arc_sums.arcstat_evict_l2_skip, 0);
+	wmsum_init(&arc_sums.arcstat_hash_collisions, 0);
+	wmsum_init(&arc_sums.arcstat_hash_chains, 0);
+	aggsum_init(&arc_sums.arcstat_size, 0);
+	wmsum_init(&arc_sums.arcstat_compressed_size, 0);
+	wmsum_init(&arc_sums.arcstat_uncompressed_size, 0);
+	wmsum_init(&arc_sums.arcstat_overhead_size, 0);
+	wmsum_init(&arc_sums.arcstat_hdr_size, 0);
+	wmsum_init(&arc_sums.arcstat_data_size, 0);
+	wmsum_init(&arc_sums.arcstat_metadata_size, 0);
+	wmsum_init(&arc_sums.arcstat_dbuf_size, 0);
+	aggsum_init(&arc_sums.arcstat_dnode_size, 0);
+	wmsum_init(&arc_sums.arcstat_bonus_size, 0);
+	wmsum_init(&arc_sums.arcstat_l2_hits, 0);
+	wmsum_init(&arc_sums.arcstat_l2_misses, 0);
+	wmsum_init(&arc_sums.arcstat_l2_prefetch_asize, 0);
+	wmsum_init(&arc_sums.arcstat_l2_mru_asize, 0);
+	wmsum_init(&arc_sums.arcstat_l2_mfu_asize, 0);
+	wmsum_init(&arc_sums.arcstat_l2_bufc_data_asize, 0);
+	wmsum_init(&arc_sums.arcstat_l2_bufc_metadata_asize, 0);
+	wmsum_init(&arc_sums.arcstat_l2_feeds, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rw_clash, 0);
+	wmsum_init(&arc_sums.arcstat_l2_read_bytes, 0);
+	wmsum_init(&arc_sums.arcstat_l2_write_bytes, 0);
+	wmsum_init(&arc_sums.arcstat_l2_writes_sent, 0);
+	wmsum_init(&arc_sums.arcstat_l2_writes_done, 0);
+	wmsum_init(&arc_sums.arcstat_l2_writes_error, 0);
+	wmsum_init(&arc_sums.arcstat_l2_writes_lock_retry, 0);
+	wmsum_init(&arc_sums.arcstat_l2_evict_lock_retry, 0);
+	wmsum_init(&arc_sums.arcstat_l2_evict_reading, 0);
+	wmsum_init(&arc_sums.arcstat_l2_evict_l1cached, 0);
+	wmsum_init(&arc_sums.arcstat_l2_free_on_write, 0);
+	wmsum_init(&arc_sums.arcstat_l2_abort_lowmem, 0);
+	wmsum_init(&arc_sums.arcstat_l2_cksum_bad, 0);
+	wmsum_init(&arc_sums.arcstat_l2_io_error, 0);
+	wmsum_init(&arc_sums.arcstat_l2_lsize, 0);
+	wmsum_init(&arc_sums.arcstat_l2_psize, 0);
+	aggsum_init(&arc_sums.arcstat_l2_hdr_size, 0);
+	wmsum_init(&arc_sums.arcstat_l2_log_blk_writes, 0);
+	wmsum_init(&arc_sums.arcstat_l2_log_blk_asize, 0);
+	wmsum_init(&arc_sums.arcstat_l2_log_blk_count, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_success, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_abort_unsupported, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_abort_io_errors, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_abort_dh_errors, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_abort_cksum_lb_errors, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_abort_lowmem, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_size, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_asize, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_bufs, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_bufs_precached, 0);
+	wmsum_init(&arc_sums.arcstat_l2_rebuild_log_blks, 0);
+	wmsum_init(&arc_sums.arcstat_memory_throttle_count, 0);
+	wmsum_init(&arc_sums.arcstat_memory_direct_count, 0);
+	wmsum_init(&arc_sums.arcstat_memory_indirect_count, 0);
+	wmsum_init(&arc_sums.arcstat_prune, 0);
+	aggsum_init(&arc_sums.arcstat_meta_used, 0);
+	wmsum_init(&arc_sums.arcstat_async_upgrade_sync, 0);
+	wmsum_init(&arc_sums.arcstat_demand_hit_predictive_prefetch, 0);
+	wmsum_init(&arc_sums.arcstat_demand_hit_prescient_prefetch, 0);
+	wmsum_init(&arc_sums.arcstat_raw_size, 0);
+	wmsum_init(&arc_sums.arcstat_cached_only_in_progress, 0);
+	wmsum_init(&arc_sums.arcstat_abd_chunk_waste_size, 0);
 
 	arc_anon->arcs_state = ARC_STATE_ANON;
 	arc_mru->arcs_state = ARC_STATE_MRU;
@@ -7569,16 +7778,93 @@ arc_state_fini(void)
 	multilist_destroy(&arc_l2c_only->arcs_list[ARC_BUFC_METADATA]);
 	multilist_destroy(&arc_l2c_only->arcs_list[ARC_BUFC_DATA]);
 
-	aggsum_fini(&arc_meta_used);
-	aggsum_fini(&arc_size);
-	wmsum_fini(&astat_data_size);
-	wmsum_fini(&astat_metadata_size);
-	wmsum_fini(&astat_hdr_size);
-	aggsum_fini(&astat_l2_hdr_size);
-	wmsum_fini(&astat_bonus_size);
-	aggsum_fini(&astat_dnode_size);
-	wmsum_fini(&astat_dbuf_size);
-	wmsum_fini(&astat_abd_chunk_waste_size);
+	wmsum_fini(&arc_sums.arcstat_hits);
+	wmsum_fini(&arc_sums.arcstat_misses);
+	wmsum_fini(&arc_sums.arcstat_demand_data_hits);
+	wmsum_fini(&arc_sums.arcstat_demand_data_misses);
+	wmsum_fini(&arc_sums.arcstat_demand_metadata_hits);
+	wmsum_fini(&arc_sums.arcstat_demand_metadata_misses);
+	wmsum_fini(&arc_sums.arcstat_prefetch_data_hits);
+	wmsum_fini(&arc_sums.arcstat_prefetch_data_misses);
+	wmsum_fini(&arc_sums.arcstat_prefetch_metadata_hits);
+	wmsum_fini(&arc_sums.arcstat_prefetch_metadata_misses);
+	wmsum_fini(&arc_sums.arcstat_mru_hits);
+	wmsum_fini(&arc_sums.arcstat_mru_ghost_hits);
+	wmsum_fini(&arc_sums.arcstat_mfu_hits);
+	wmsum_fini(&arc_sums.arcstat_mfu_ghost_hits);
+	wmsum_fini(&arc_sums.arcstat_deleted);
+	wmsum_fini(&arc_sums.arcstat_mutex_miss);
+	wmsum_fini(&arc_sums.arcstat_access_skip);
+	wmsum_fini(&arc_sums.arcstat_evict_skip);
+	wmsum_fini(&arc_sums.arcstat_evict_not_enough);
+	wmsum_fini(&arc_sums.arcstat_evict_l2_cached);
+	wmsum_fini(&arc_sums.arcstat_evict_l2_eligible);
+	wmsum_fini(&arc_sums.arcstat_evict_l2_eligible_mfu);
+	wmsum_fini(&arc_sums.arcstat_evict_l2_eligible_mru);
+	wmsum_fini(&arc_sums.arcstat_evict_l2_ineligible);
+	wmsum_fini(&arc_sums.arcstat_evict_l2_skip);
+	wmsum_fini(&arc_sums.arcstat_hash_collisions);
+	wmsum_fini(&arc_sums.arcstat_hash_chains);
+	aggsum_fini(&arc_sums.arcstat_size);
+	wmsum_fini(&arc_sums.arcstat_compressed_size);
+	wmsum_fini(&arc_sums.arcstat_uncompressed_size);
+	wmsum_fini(&arc_sums.arcstat_overhead_size);
+	wmsum_fini(&arc_sums.arcstat_hdr_size);
+	wmsum_fini(&arc_sums.arcstat_data_size);
+	wmsum_fini(&arc_sums.arcstat_metadata_size);
+	wmsum_fini(&arc_sums.arcstat_dbuf_size);
+	aggsum_fini(&arc_sums.arcstat_dnode_size);
+	wmsum_fini(&arc_sums.arcstat_bonus_size);
+	wmsum_fini(&arc_sums.arcstat_l2_hits);
+	wmsum_fini(&arc_sums.arcstat_l2_misses);
+	wmsum_fini(&arc_sums.arcstat_l2_prefetch_asize);
+	wmsum_fini(&arc_sums.arcstat_l2_mru_asize);
+	wmsum_fini(&arc_sums.arcstat_l2_mfu_asize);
+	wmsum_fini(&arc_sums.arcstat_l2_bufc_data_asize);
+	wmsum_fini(&arc_sums.arcstat_l2_bufc_metadata_asize);
+	wmsum_fini(&arc_sums.arcstat_l2_feeds);
+	wmsum_fini(&arc_sums.arcstat_l2_rw_clash);
+	wmsum_fini(&arc_sums.arcstat_l2_read_bytes);
+	wmsum_fini(&arc_sums.arcstat_l2_write_bytes);
+	wmsum_fini(&arc_sums.arcstat_l2_writes_sent);
+	wmsum_fini(&arc_sums.arcstat_l2_writes_done);
+	wmsum_fini(&arc_sums.arcstat_l2_writes_error);
+	wmsum_fini(&arc_sums.arcstat_l2_writes_lock_retry);
+	wmsum_fini(&arc_sums.arcstat_l2_evict_lock_retry);
+	wmsum_fini(&arc_sums.arcstat_l2_evict_reading);
+	wmsum_fini(&arc_sums.arcstat_l2_evict_l1cached);
+	wmsum_fini(&arc_sums.arcstat_l2_free_on_write);
+	wmsum_fini(&arc_sums.arcstat_l2_abort_lowmem);
+	wmsum_fini(&arc_sums.arcstat_l2_cksum_bad);
+	wmsum_fini(&arc_sums.arcstat_l2_io_error);
+	wmsum_fini(&arc_sums.arcstat_l2_lsize);
+	wmsum_fini(&arc_sums.arcstat_l2_psize);
+	aggsum_fini(&arc_sums.arcstat_l2_hdr_size);
+	wmsum_fini(&arc_sums.arcstat_l2_log_blk_writes);
+	wmsum_fini(&arc_sums.arcstat_l2_log_blk_asize);
+	wmsum_fini(&arc_sums.arcstat_l2_log_blk_count);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_success);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_abort_unsupported);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_abort_io_errors);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_abort_dh_errors);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_abort_cksum_lb_errors);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_abort_lowmem);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_size);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_asize);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_bufs);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_bufs_precached);
+	wmsum_fini(&arc_sums.arcstat_l2_rebuild_log_blks);
+	wmsum_fini(&arc_sums.arcstat_memory_throttle_count);
+	wmsum_fini(&arc_sums.arcstat_memory_direct_count);
+	wmsum_fini(&arc_sums.arcstat_memory_indirect_count);
+	wmsum_fini(&arc_sums.arcstat_prune);
+	aggsum_fini(&arc_sums.arcstat_meta_used);
+	wmsum_fini(&arc_sums.arcstat_async_upgrade_sync);
+	wmsum_fini(&arc_sums.arcstat_demand_hit_predictive_prefetch);
+	wmsum_fini(&arc_sums.arcstat_demand_hit_prescient_prefetch);
+	wmsum_fini(&arc_sums.arcstat_raw_size);
+	wmsum_fini(&arc_sums.arcstat_cached_only_in_progress);
+	wmsum_fini(&arc_sums.arcstat_abd_chunk_waste_size);
 }
 
 uint64_t
@@ -7628,8 +7914,6 @@ arc_init(void)
 
 	/* Set min to 1/2 of arc_c_min */
 	arc_meta_min = 1ULL << SPA_MAXBLOCKSHIFT;
-	/* Initialize maximum observed usage to zero */
-	arc_meta_max = 0;
 	/*
 	 * Set arc_meta_limit to a percent of arc_c_max with a floor of
 	 * arc_meta_min, and a ceiling of arc_c_max.
@@ -8355,7 +8639,7 @@ top:
 		}
 	}
 
-	atomic_inc_64(&l2arc_writes_done);
+	ARCSTAT_BUMP(arcstat_l2_writes_done);
 	list_remove(buflist, head);
 	ASSERT(!HDR_HAS_L1HDR(head));
 	kmem_cache_free(hdr_l2only_cache, head);
@@ -9327,7 +9611,7 @@ l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz)
 static boolean_t
 l2arc_hdr_limit_reached(void)
 {
-	int64_t s = aggsum_upper_bound(&astat_l2_hdr_size);
+	int64_t s = aggsum_upper_bound(&arc_sums.arcstat_l2_hdr_size);
 
 	return (arc_reclaim_needed() || (s > arc_meta_limit * 3 / 4) ||
 	    (s > (arc_warm ? arc_c : arc_c_max) * l2arc_meta_percent / 100));
@@ -9661,8 +9945,6 @@ l2arc_init(void)
 {
 	l2arc_thread_exit = 0;
 	l2arc_ndev = 0;
-	l2arc_writes_sent = 0;
-	l2arc_writes_done = 0;
 
 	mutex_init(&l2arc_feed_thr_lock, NULL, MUTEX_DEFAULT, NULL);
 	cv_init(&l2arc_feed_thr_cv, NULL, CV_DEFAULT, NULL);
@@ -9976,7 +10258,7 @@ out:
 		 * log as the pool may be in the process of being removed.
 		 */
 		zfs_dbgmsg("L2ARC rebuild aborted, restored %llu blocks",
-		    zfs_refcount_count(&dev->l2ad_lb_count));
+		    (u_longlong_t)zfs_refcount_count(&dev->l2ad_lb_count));
 	} else if (err != 0) {
 		spa_history_log_internal(spa, "L2ARC rebuild", NULL,
 		    "aborted, restored %llu blocks",
@@ -10019,7 +10301,8 @@ l2arc_dev_hdr_read(l2arc_dev_t *dev)
 	if (err != 0) {
 		ARCSTAT_BUMP(arcstat_l2_rebuild_abort_dh_errors);
 		zfs_dbgmsg("L2ARC IO error (%d) while reading device header, "
-		    "vdev guid: %llu", err, dev->l2ad_vdev->vdev_guid);
+		    "vdev guid: %llu", err,
+		    (u_longlong_t)dev->l2ad_vdev->vdev_guid);
 		return (err);
 	}
 
@@ -10116,8 +10399,9 @@ l2arc_log_blk_read(l2arc_dev_t *dev,
 	if ((err = zio_wait(this_io)) != 0) {
 		ARCSTAT_BUMP(arcstat_l2_rebuild_abort_io_errors);
 		zfs_dbgmsg("L2ARC IO error (%d) while reading log block, "
-		    "offset: %llu, vdev guid: %llu", err, this_lbp->lbp_daddr,
-		    dev->l2ad_vdev->vdev_guid);
+		    "offset: %llu, vdev guid: %llu", err,
+		    (u_longlong_t)this_lbp->lbp_daddr,
+		    (u_longlong_t)dev->l2ad_vdev->vdev_guid);
 		goto cleanup;
 	}
 
@@ -10131,8 +10415,10 @@ l2arc_log_blk_read(l2arc_dev_t *dev,
 		ARCSTAT_BUMP(arcstat_l2_rebuild_abort_cksum_lb_errors);
 		zfs_dbgmsg("L2ARC log block cksum failed, offset: %llu, "
 		    "vdev guid: %llu, l2ad_hand: %llu, l2ad_evict: %llu",
-		    this_lbp->lbp_daddr, dev->l2ad_vdev->vdev_guid,
-		    dev->l2ad_hand, dev->l2ad_evict);
+		    (u_longlong_t)this_lbp->lbp_daddr,
+		    (u_longlong_t)dev->l2ad_vdev->vdev_guid,
+		    (u_longlong_t)dev->l2ad_hand,
+		    (u_longlong_t)dev->l2ad_evict);
 		err = SET_ERROR(ECKSUM);
 		goto cleanup;
 	}
@@ -10386,7 +10672,8 @@ l2arc_dev_hdr_update(l2arc_dev_t *dev)
 
 	if (err != 0) {
 		zfs_dbgmsg("L2ARC IO error (%d) while writing device header, "
-		    "vdev guid: %llu", err, dev->l2ad_vdev->vdev_guid);
+		    "vdev guid: %llu", err,
+		    (u_longlong_t)dev->l2ad_vdev->vdev_guid);
 	}
 }
 
diff --git a/sys/contrib/openzfs/module/zfs/dbuf.c b/sys/contrib/openzfs/module/zfs/dbuf.c
index 368cdfe397a2..8e55a613bbf2 100644
--- a/sys/contrib/openzfs/module/zfs/dbuf.c
+++ b/sys/contrib/openzfs/module/zfs/dbuf.c
@@ -52,6 +52,7 @@
 #include <sys/vdev.h>
 #include <cityhash.h>
 #include <sys/spa_impl.h>
+#include <sys/wmsum.h>
 
 kstat_t *dbuf_ksp;
 
@@ -135,8 +136,22 @@ dbuf_stats_t dbuf_stats = {
 	{ "metadata_cache_overflow",		KSTAT_DATA_UINT64 }
 };
 
+struct {
+	wmsum_t cache_count;
+	wmsum_t cache_total_evicts;
+	wmsum_t cache_levels[DN_MAX_LEVELS];
+	wmsum_t cache_levels_bytes[DN_MAX_LEVELS];
+	wmsum_t hash_hits;
+	wmsum_t hash_misses;
+	wmsum_t hash_collisions;
+	wmsum_t hash_chains;
+	wmsum_t hash_insert_race;
+	wmsum_t metadata_cache_count;
+	wmsum_t metadata_cache_overflow;
+} dbuf_sums;
+
 #define	DBUF_STAT_INCR(stat, val)	\
-	atomic_add_64(&dbuf_stats.stat.value.ui64, (val));
+	wmsum_add(&dbuf_sums.stat, val);
 #define	DBUF_STAT_DECR(stat, val)	\
 	DBUF_STAT_INCR(stat, -(val));
 #define	DBUF_STAT_BUMP(stat)		\
@@ -297,8 +312,6 @@ dbuf_dest(void *vdb, void *unused)
  */
 static dbuf_hash_table_t dbuf_hash_table;
 
-static uint64_t dbuf_hash_count;
-
 /*
  * We use Cityhash for this. It's fast, and has good hash properties without
  * requiring any large static buffers.
@@ -409,8 +422,8 @@ dbuf_hash_insert(dmu_buf_impl_t *db)
 	db->db_hash_next = h->hash_table[idx];
 	h->hash_table[idx] = db;
 	mutex_exit(DBUF_HASH_MUTEX(h, idx));
-	atomic_inc_64(&dbuf_hash_count);
-	DBUF_STAT_MAX(hash_elements_max, dbuf_hash_count);
+	uint64_t he = atomic_inc_64_nv(&dbuf_stats.hash_elements.value.ui64);
+	DBUF_STAT_MAX(hash_elements_max, he);
 
 	return (NULL);
 }
@@ -483,7 +496,7 @@ dbuf_hash_remove(dmu_buf_impl_t *db)
 	    h->hash_table[idx]->db_hash_next == NULL)
 		DBUF_STAT_BUMPDOWN(hash_chains);
 	mutex_exit(DBUF_HASH_MUTEX(h, idx));
-	atomic_dec_64(&dbuf_hash_count);
+	atomic_dec_64(&dbuf_stats.hash_elements.value.ui64);
 }
 
 typedef enum {
@@ -767,19 +780,40 @@ dbuf_kstat_update(kstat_t *ksp, int rw)
 {
 	dbuf_stats_t *ds = ksp->ks_data;
 
-	if (rw == KSTAT_WRITE) {
+	if (rw == KSTAT_WRITE)
 		return (SET_ERROR(EACCES));
-	} else {
-		ds->metadata_cache_size_bytes.value.ui64 = zfs_refcount_count(
-		    &dbuf_caches[DB_DBUF_METADATA_CACHE].size);
-		ds->cache_size_bytes.value.ui64 =
-		    zfs_refcount_count(&dbuf_caches[DB_DBUF_CACHE].size);
-		ds->cache_target_bytes.value.ui64 = dbuf_cache_target_bytes();
-		ds->cache_hiwater_bytes.value.ui64 = dbuf_cache_hiwater_bytes();
-		ds->cache_lowater_bytes.value.ui64 = dbuf_cache_lowater_bytes();
-		ds->hash_elements.value.ui64 = dbuf_hash_count;
-	}
 
+	ds->cache_count.value.ui64 =
+	    wmsum_value(&dbuf_sums.cache_count);
+	ds->cache_size_bytes.value.ui64 =
+	    zfs_refcount_count(&dbuf_caches[DB_DBUF_CACHE].size);
+	ds->cache_target_bytes.value.ui64 = dbuf_cache_target_bytes();
+	ds->cache_hiwater_bytes.value.ui64 = dbuf_cache_hiwater_bytes();
+	ds->cache_lowater_bytes.value.ui64 = dbuf_cache_lowater_bytes();
+	ds->cache_total_evicts.value.ui64 =
+	    wmsum_value(&dbuf_sums.cache_total_evicts);
+	for (int i = 0; i < DN_MAX_LEVELS; i++) {
+		ds->cache_levels[i].value.ui64 =
+		    wmsum_value(&dbuf_sums.cache_levels[i]);
+		ds->cache_levels_bytes[i].value.ui64 =
+		    wmsum_value(&dbuf_sums.cache_levels_bytes[i]);
+	}
+	ds->hash_hits.value.ui64 =
+	    wmsum_value(&dbuf_sums.hash_hits);
+	ds->hash_misses.value.ui64 =
+	    wmsum_value(&dbuf_sums.hash_misses);
+	ds->hash_collisions.value.ui64 =
+	    wmsum_value(&dbuf_sums.hash_collisions);
+	ds->hash_chains.value.ui64 =
+	    wmsum_value(&dbuf_sums.hash_chains);
+	ds->hash_insert_race.value.ui64 =
+	    wmsum_value(&dbuf_sums.hash_insert_race);
+	ds->metadata_cache_count.value.ui64 =
+	    wmsum_value(&dbuf_sums.metadata_cache_count);
+	ds->metadata_cache_size_bytes.value.ui64 = zfs_refcount_count(
+	    &dbuf_caches[DB_DBUF_METADATA_CACHE].size);
+	ds->metadata_cache_overflow.value.ui64 =
+	    wmsum_value(&dbuf_sums.metadata_cache_overflow);
 	return (0);
 }
 
@@ -846,6 +880,20 @@ retry:
 	dbuf_cache_evict_thread = thread_create(NULL, 0, dbuf_evict_thread,
 	    NULL, 0, &p0, TS_RUN, minclsyspri);
 
+	wmsum_init(&dbuf_sums.cache_count, 0);
+	wmsum_init(&dbuf_sums.cache_total_evicts, 0);
+	for (i = 0; i < DN_MAX_LEVELS; i++) {
+		wmsum_init(&dbuf_sums.cache_levels[i], 0);
+		wmsum_init(&dbuf_sums.cache_levels_bytes[i], 0);
+	}
+	wmsum_init(&dbuf_sums.hash_hits, 0);
+	wmsum_init(&dbuf_sums.hash_misses, 0);
+	wmsum_init(&dbuf_sums.hash_collisions, 0);
+	wmsum_init(&dbuf_sums.hash_chains, 0);
+	wmsum_init(&dbuf_sums.hash_insert_race, 0);
+	wmsum_init(&dbuf_sums.metadata_cache_count, 0);
+	wmsum_init(&dbuf_sums.metadata_cache_overflow, 0);
+
 	dbuf_ksp = kstat_create("zfs", 0, "dbufstats", "misc",
 	    KSTAT_TYPE_NAMED, sizeof (dbuf_stats) / sizeof (kstat_named_t),
 	    KSTAT_FLAG_VIRTUAL);
@@ -908,6 +956,20 @@ dbuf_fini(void)
 		kstat_delete(dbuf_ksp);
 		dbuf_ksp = NULL;
 	}
+
+	wmsum_fini(&dbuf_sums.cache_count);
+	wmsum_fini(&dbuf_sums.cache_total_evicts);
+	for (i = 0; i < DN_MAX_LEVELS; i++) {
+		wmsum_fini(&dbuf_sums.cache_levels[i]);
+		wmsum_fini(&dbuf_sums.cache_levels_bytes[i]);
+	}
+	wmsum_fini(&dbuf_sums.hash_hits);
+	wmsum_fini(&dbuf_sums.hash_misses);
+	wmsum_fini(&dbuf_sums.hash_collisions);
+	wmsum_fini(&dbuf_sums.hash_chains);
+	wmsum_fini(&dbuf_sums.hash_insert_race);
+	wmsum_fini(&dbuf_sums.metadata_cache_count);
+	wmsum_fini(&dbuf_sums.metadata_cache_overflow);
 }
 
 /*
@@ -1091,42 +1153,6 @@ dbuf_set_data(dmu_buf_impl_t *db, arc_buf_t *buf)
 }
 
 static arc_buf_t *
-dbuf_alloc_arcbuf_from_arcbuf(dmu_buf_impl_t *db, arc_buf_t *data)
-{
-	objset_t *os = db->db_objset;
-	spa_t *spa = os->os_spa;
-	arc_buf_contents_t type = DBUF_GET_BUFC_TYPE(db);
-	enum zio_compress compress_type;
-	uint8_t complevel;
-	int psize, lsize;
-
-	psize = arc_buf_size(data);
-	lsize = arc_buf_lsize(data);
-	compress_type = arc_get_compression(data);
-	complevel = arc_get_complevel(data);
-
-	if (arc_is_encrypted(data)) {
-		boolean_t byteorder;
-		uint8_t salt[ZIO_DATA_SALT_LEN];
-		uint8_t iv[ZIO_DATA_IV_LEN];
-		uint8_t mac[ZIO_DATA_MAC_LEN];
-		dnode_t *dn = DB_DNODE(db);
-
-		arc_get_raw_params(data, &byteorder, salt, iv, mac);
-		data = arc_alloc_raw_buf(spa, db, dmu_objset_id(os),
-		    byteorder, salt, iv, mac, dn->dn_type, psize, lsize,
-		    compress_type, complevel);
-	} else if (compress_type != ZIO_COMPRESS_OFF) {
-		ASSERT3U(type, ==, ARC_BUFC_DATA);
-		data = arc_alloc_compressed_buf(spa, db,
-		    psize, lsize, compress_type, complevel);
-	} else {
-		data = arc_alloc_buf(spa, db, type, psize);
-	}
-	return (data);
-}
-
-static arc_buf_t *
 dbuf_alloc_arcbuf(dmu_buf_impl_t *db)
 {
 	spa_t *spa = db->db_objset->os_spa;
@@ -1575,9 +1601,35 @@ dbuf_fix_old_data(dmu_buf_impl_t *db, uint64_t txg)
 		arc_space_consume(bonuslen, ARC_SPACE_BONUS);
 		bcopy(db->db.db_data, dr->dt.dl.dr_data, bonuslen);
 	} else if (zfs_refcount_count(&db->db_holds) > db->db_dirtycnt) {
-		arc_buf_t *buf = dbuf_alloc_arcbuf_from_arcbuf(db, db->db_buf);
-		dr->dt.dl.dr_data = buf;
-		bcopy(db->db.db_data, buf->b_data, arc_buf_size(buf));
+		dnode_t *dn = DB_DNODE(db);
+		int size = arc_buf_size(db->db_buf);
+		arc_buf_contents_t type = DBUF_GET_BUFC_TYPE(db);
+		spa_t *spa = db->db_objset->os_spa;
+		enum zio_compress compress_type =
+		    arc_get_compression(db->db_buf);
+		uint8_t complevel = arc_get_complevel(db->db_buf);
+
+		if (arc_is_encrypted(db->db_buf)) {
+			boolean_t byteorder;
+			uint8_t salt[ZIO_DATA_SALT_LEN];
+			uint8_t iv[ZIO_DATA_IV_LEN];
+			uint8_t mac[ZIO_DATA_MAC_LEN];
+
+			arc_get_raw_params(db->db_buf, &byteorder, salt,
+			    iv, mac);
+			dr->dt.dl.dr_data = arc_alloc_raw_buf(spa, db,
+			    dmu_objset_id(dn->dn_objset), byteorder, salt, iv,
+			    mac, dn->dn_type, size, arc_buf_lsize(db->db_buf),
+			    compress_type, complevel);
+		} else if (compress_type != ZIO_COMPRESS_OFF) {
+			ASSERT3U(type, ==, ARC_BUFC_DATA);
+			dr->dt.dl.dr_data = arc_alloc_compressed_buf(spa, db,
+			    size, arc_buf_lsize(db->db_buf), compress_type,
+			    complevel);
+		} else {
+			dr->dt.dl.dr_data = arc_alloc_buf(spa, db, type, size);
+		}
+		bcopy(db->db.db_data, dr->dt.dl.dr_data->b_data, size);
 	} else {
 		db->db_buf = NULL;
 		dbuf_clear_data(db);
@@ -1798,7 +1850,8 @@ dbuf_free_range(dnode_t *dn, uint64_t start_blkid, uint64_t end_blkid,
 	if (end_blkid > dn->dn_maxblkid &&
 	    !(start_blkid == DMU_SPILL_BLKID || end_blkid == DMU_SPILL_BLKID))
 		end_blkid = dn->dn_maxblkid;
-	dprintf_dnode(dn, "start=%llu end=%llu\n", start_blkid, end_blkid);
+	dprintf_dnode(dn, "start=%llu end=%llu\n", (u_longlong_t)start_blkid,
+	    (u_longlong_t)end_blkid);
 
 	db_search = kmem_alloc(sizeof (dmu_buf_impl_t), KM_SLEEP);
 	db_search->db_level = 0;
@@ -3378,10 +3431,30 @@ noinline static void
 dbuf_hold_copy(dnode_t *dn, dmu_buf_impl_t *db)
 {
 	dbuf_dirty_record_t *dr = db->db_data_pending;
-	arc_buf_t *newdata, *data = dr->dt.dl.dr_data;
+	arc_buf_t *data = dr->dt.dl.dr_data;
+	enum zio_compress compress_type = arc_get_compression(data);
+	uint8_t complevel = arc_get_complevel(data);
+
+	if (arc_is_encrypted(data)) {
+		boolean_t byteorder;
+		uint8_t salt[ZIO_DATA_SALT_LEN];
+		uint8_t iv[ZIO_DATA_IV_LEN];
+		uint8_t mac[ZIO_DATA_MAC_LEN];
+
+		arc_get_raw_params(data, &byteorder, salt, iv, mac);
+		dbuf_set_data(db, arc_alloc_raw_buf(dn->dn_objset->os_spa, db,
+		    dmu_objset_id(dn->dn_objset), byteorder, salt, iv, mac,
+		    dn->dn_type, arc_buf_size(data), arc_buf_lsize(data),
+		    compress_type, complevel));
+	} else if (compress_type != ZIO_COMPRESS_OFF) {
+		dbuf_set_data(db, arc_alloc_compressed_buf(
+		    dn->dn_objset->os_spa, db, arc_buf_size(data),
+		    arc_buf_lsize(data), compress_type, complevel));
+	} else {
+		dbuf_set_data(db, arc_alloc_buf(dn->dn_objset->os_spa, db,
+		    DBUF_GET_BUFC_TYPE(db), db->db.db_size));
+	}
 
-	newdata = dbuf_alloc_arcbuf_from_arcbuf(db, data);
-	dbuf_set_data(db, newdata);
 	rw_enter(&db->db_rwlock, RW_WRITER);
 	bcopy(data->b_data, db->db.db_data, arc_buf_size(data));
 	rw_exit(&db->db_rwlock);
@@ -3710,9 +3783,11 @@ dbuf_rele_and_unlock(dmu_buf_impl_t *db, void *tag, boolean_t evicting)
 				db->db_caching_status = dcs;
 
 				multilist_insert(&dbuf_caches[dcs].cache, db);
+				uint64_t db_size = db->db.db_size;
 				size = zfs_refcount_add_many(
-				    &dbuf_caches[dcs].size,
-				    db->db.db_size, db);
+				    &dbuf_caches[dcs].size, db_size, db);
+				uint8_t db_level = db->db_level;
+				mutex_exit(&db->db_mtx);
 
 				if (dcs == DB_DBUF_METADATA_CACHE) {
 					DBUF_STAT_BUMP(metadata_cache_count);
@@ -3720,16 +3795,14 @@ dbuf_rele_and_unlock(dmu_buf_impl_t *db, void *tag, boolean_t evicting)
 					    metadata_cache_size_bytes_max,
 					    size);
 				} else {
-					DBUF_STAT_BUMP(
-					    cache_levels[db->db_level]);
 					DBUF_STAT_BUMP(cache_count);
-					DBUF_STAT_INCR(
-					    cache_levels_bytes[db->db_level],
-					    db->db.db_size);
 					DBUF_STAT_MAX(cache_size_bytes_max,
 					    size);
+					DBUF_STAT_BUMP(cache_levels[db_level]);
+					DBUF_STAT_INCR(
+					    cache_levels_bytes[db_level],
+					    db_size);
 				}
-				mutex_exit(&db->db_mtx);
 
 				if (dcs == DB_DBUF_CACHE && !evicting)
 					dbuf_evict_notify(size);
@@ -4303,8 +4376,31 @@ dbuf_sync_leaf(dbuf_dirty_record_t *dr, dmu_tx_t *tx)
 		 * objects only modified in the syncing context (e.g.
 		 * DNONE_DNODE blocks).
 		 */
-		*datap = dbuf_alloc_arcbuf_from_arcbuf(db, db->db_buf);
-		bcopy(db->db.db_data, (*datap)->b_data, arc_buf_size(*datap));
+		int psize = arc_buf_size(*datap);
+		int lsize = arc_buf_lsize(*datap);
+		arc_buf_contents_t type = DBUF_GET_BUFC_TYPE(db);
+		enum zio_compress compress_type = arc_get_compression(*datap);
+		uint8_t complevel = arc_get_complevel(*datap);
+
+		if (arc_is_encrypted(*datap)) {
+			boolean_t byteorder;
+			uint8_t salt[ZIO_DATA_SALT_LEN];
+			uint8_t iv[ZIO_DATA_IV_LEN];
+			uint8_t mac[ZIO_DATA_MAC_LEN];
+
+			arc_get_raw_params(*datap, &byteorder, salt, iv, mac);
+			*datap = arc_alloc_raw_buf(os->os_spa, db,
+			    dmu_objset_id(os), byteorder, salt, iv, mac,
+			    dn->dn_type, psize, lsize, compress_type,
+			    complevel);
+		} else if (compress_type != ZIO_COMPRESS_OFF) {
+			ASSERT3U(type, ==, ARC_BUFC_DATA);
+			*datap = arc_alloc_compressed_buf(os->os_spa, db,
+			    psize, lsize, compress_type, complevel);
+		} else {
+			*datap = arc_alloc_buf(os->os_spa, db, type, psize);
+		}
+		bcopy(db->db.db_data, (*datap)->b_data, psize);
 	}
 	db->db_data_pending = dr;
 
diff --git a/sys/contrib/openzfs/module/zfs/dmu_objset.c b/sys/contrib/openzfs/module/zfs/dmu_objset.c
index 8c244dc4c317..22deee7f3dc9 100644
--- a/sys/contrib/openzfs/module/zfs/dmu_objset.c
+++ b/sys/contrib/openzfs/module/zfs/dmu_objset.c
@@ -1616,7 +1616,7 @@ dmu_objset_sync(objset_t *os, zio_t *pio, dmu_tx_t *tx)
 	blkptr_t *blkptr_copy = kmem_alloc(sizeof (*os->os_rootbp), KM_SLEEP);
 	*blkptr_copy = *os->os_rootbp;
 
-	dprintf_ds(os->os_dsl_dataset, "txg=%llu\n", tx->tx_txg);
+	dprintf_ds(os->os_dsl_dataset, "txg=%llu\n", (u_longlong_t)tx->tx_txg);
 
 	ASSERT(dmu_tx_is_syncing(tx));
 	/* XXX the write_done callback should really give us the tx... */
diff --git a/sys/contrib/openzfs/module/zfs/dmu_recv.c b/sys/contrib/openzfs/module/zfs/dmu_recv.c
index a713e1329027..0ec46bdb4f47 100644
--- a/sys/contrib/openzfs/module/zfs/dmu_recv.c
+++ b/sys/contrib/openzfs/module/zfs/dmu_recv.c
@@ -2588,8 +2588,8 @@ dprintf_drr(struct receive_record_arg *rrd, int err)
 		dprintf("drr_type = OBJECT obj = %llu type = %u "
 		    "bonustype = %u blksz = %u bonuslen = %u cksumtype = %u "
 		    "compress = %u dn_slots = %u err = %d\n",
-		    drro->drr_object, drro->drr_type,  drro->drr_bonustype,
-		    drro->drr_blksz, drro->drr_bonuslen,
+		    (u_longlong_t)drro->drr_object, drro->drr_type,
+		    drro->drr_bonustype, drro->drr_blksz, drro->drr_bonuslen,
 		    drro->drr_checksumtype, drro->drr_compress,
 		    drro->drr_dn_slots, err);
 		break;
@@ -2600,7 +2600,8 @@ dprintf_drr(struct receive_record_arg *rrd, int err)
 		    &rrd->header.drr_u.drr_freeobjects;
 		dprintf("drr_type = FREEOBJECTS firstobj = %llu "
 		    "numobjs = %llu err = %d\n",
-		    drrfo->drr_firstobj, drrfo->drr_numobjs, err);
+		    (u_longlong_t)drrfo->drr_firstobj,
+		    (u_longlong_t)drrfo->drr_numobjs, err);
 		break;
 	}
 	case DRR_WRITE:
@@ -2609,10 +2610,12 @@ dprintf_drr(struct receive_record_arg *rrd, int err)
 		dprintf("drr_type = WRITE obj = %llu type = %u offset = %llu "
 		    "lsize = %llu cksumtype = %u flags = %u "
 		    "compress = %u psize = %llu err = %d\n",
-		    drrw->drr_object, drrw->drr_type, drrw->drr_offset,
-		    drrw->drr_logical_size, drrw->drr_checksumtype,
-		    drrw->drr_flags, drrw->drr_compressiontype,
-		    drrw->drr_compressed_size, err);
+		    (u_longlong_t)drrw->drr_object, drrw->drr_type,
+		    (u_longlong_t)drrw->drr_offset,
+		    (u_longlong_t)drrw->drr_logical_size,
+		    drrw->drr_checksumtype, drrw->drr_flags,
+		    drrw->drr_compressiontype,
+		    (u_longlong_t)drrw->drr_compressed_size, err);
 		break;
 	}
 	case DRR_WRITE_BYREF:
@@ -2623,11 +2626,14 @@ dprintf_drr(struct receive_record_arg *rrd, int err)
 		    "length = %llu toguid = %llx refguid = %llx "
 		    "refobject = %llu refoffset = %llu cksumtype = %u "
 		    "flags = %u err = %d\n",
-		    drrwbr->drr_object, drrwbr->drr_offset,
-		    drrwbr->drr_length, drrwbr->drr_toguid,
-		    drrwbr->drr_refguid, drrwbr->drr_refobject,
-		    drrwbr->drr_refoffset, drrwbr->drr_checksumtype,
-		    drrwbr->drr_flags, err);
+		    (u_longlong_t)drrwbr->drr_object,
+		    (u_longlong_t)drrwbr->drr_offset,
+		    (u_longlong_t)drrwbr->drr_length,
+		    (u_longlong_t)drrwbr->drr_toguid,
+		    (u_longlong_t)drrwbr->drr_refguid,
+		    (u_longlong_t)drrwbr->drr_refobject,
+		    (u_longlong_t)drrwbr->drr_refoffset,
+		    drrwbr->drr_checksumtype, drrwbr->drr_flags, err);
 		break;
 	}
 	case DRR_WRITE_EMBEDDED:
@@ -2637,7 +2643,9 @@ dprintf_drr(struct receive_record_arg *rrd, int err)
 		dprintf("drr_type = WRITE_EMBEDDED obj = %llu offset = %llu "
 		    "length = %llu compress = %u etype = %u lsize = %u "
 		    "psize = %u err = %d\n",
-		    drrwe->drr_object, drrwe->drr_offset, drrwe->drr_length,
+		    (u_longlong_t)drrwe->drr_object,
+		    (u_longlong_t)drrwe->drr_offset,
+		    (u_longlong_t)drrwe->drr_length,
 		    drrwe->drr_compression, drrwe->drr_etype,
 		    drrwe->drr_lsize, drrwe->drr_psize, err);
 		break;
@@ -2647,7 +2655,9 @@ dprintf_drr(struct receive_record_arg *rrd, int err)
 		struct drr_free *drrf = &rrd->header.drr_u.drr_free;
 		dprintf("drr_type = FREE obj = %llu offset = %llu "
 		    "length = %lld err = %d\n",
-		    drrf->drr_object, drrf->drr_offset, drrf->drr_length,
+		    (u_longlong_t)drrf->drr_object,
+		    (u_longlong_t)drrf->drr_offset,
+		    (longlong_t)drrf->drr_length,
 		    err);
 		break;
 	}
@@ -2655,7 +2665,8 @@ dprintf_drr(struct receive_record_arg *rrd, int err)
 	{
 		struct drr_spill *drrs = &rrd->header.drr_u.drr_spill;
 		dprintf("drr_type = SPILL obj = %llu length = %llu "
-		    "err = %d\n", drrs->drr_object, drrs->drr_length, err);
+		    "err = %d\n", (u_longlong_t)drrs->drr_object,
+		    (u_longlong_t)drrs->drr_length, err);
 		break;
 	}
 	case DRR_OBJECT_RANGE:
@@ -2664,7 +2675,8 @@ dprintf_drr(struct receive_record_arg *rrd, int err)
 		    &rrd->header.drr_u.drr_object_range;
 		dprintf("drr_type = OBJECT_RANGE firstobj = %llu "
 		    "numslots = %llu flags = %u err = %d\n",
-		    drror->drr_firstobj, drror->drr_numslots,
+		    (u_longlong_t)drror->drr_firstobj,
+		    (u_longlong_t)drror->drr_numslots,
 		    drror->drr_flags, err);
 		break;
 	}
diff --git a/sys/contrib/openzfs/module/zfs/dmu_tx.c b/sys/contrib/openzfs/module/zfs/dmu_tx.c
index 73667915df0f..0beb983f992f 100644
--- a/sys/contrib/openzfs/module/zfs/dmu_tx.c
+++ b/sys/contrib/openzfs/module/zfs/dmu_tx.c
@@ -613,7 +613,8 @@ dmu_tx_dirty_buf(dmu_tx_t *tx, dmu_buf_impl_t *db)
 			/* XXX txh_arg2 better not be zero... */
 
 			dprintf("found txh type %x beginblk=%llx endblk=%llx\n",
-			    txh->txh_type, beginblk, endblk);
+			    txh->txh_type, (u_longlong_t)beginblk,
+			    (u_longlong_t)endblk);
 
 			switch (txh->txh_type) {
 			case THT_WRITE:
diff --git a/sys/contrib/openzfs/module/zfs/dmu_zfetch.c b/sys/contrib/openzfs/module/zfs/dmu_zfetch.c
index 3d7407016d2c..4a323fa990fe 100644
--- a/sys/contrib/openzfs/module/zfs/dmu_zfetch.c
+++ b/sys/contrib/openzfs/module/zfs/dmu_zfetch.c
@@ -34,6 +34,7 @@
 #include <sys/dmu.h>
 #include <sys/dbuf.h>
 #include <sys/kstat.h>
+#include <sys/wmsum.h>
 
 /*
  * This tunable disables predictive prefetch.  Note that it leaves "prescient"
@@ -69,27 +70,54 @@ static zfetch_stats_t zfetch_stats = {
 	{ "io_issued",		KSTAT_DATA_UINT64 },
 };
 
-#define	ZFETCHSTAT_BUMP(stat) \
-	atomic_inc_64(&zfetch_stats.stat.value.ui64)
+struct {
+	wmsum_t zfetchstat_hits;
+	wmsum_t zfetchstat_misses;
+	wmsum_t zfetchstat_max_streams;
+	wmsum_t zfetchstat_io_issued;
+} zfetch_sums;
+
+#define	ZFETCHSTAT_BUMP(stat)					\
+	wmsum_add(&zfetch_sums.stat, 1)
 #define	ZFETCHSTAT_ADD(stat, val)				\
-	atomic_add_64(&zfetch_stats.stat.value.ui64, val)
-#define	ZFETCHSTAT_SET(stat, val)				\
-	zfetch_stats.stat.value.ui64 = val
-#define	ZFETCHSTAT_GET(stat)					\
-	zfetch_stats.stat.value.ui64
+	wmsum_add(&zfetch_sums.stat, val)
 
 
 kstat_t		*zfetch_ksp;
 
+static int
+zfetch_kstats_update(kstat_t *ksp, int rw)
+{
+	zfetch_stats_t *zs = ksp->ks_data;
+
+	if (rw == KSTAT_WRITE)
+		return (EACCES);
+	zs->zfetchstat_hits.value.ui64 =
+	    wmsum_value(&zfetch_sums.zfetchstat_hits);
+	zs->zfetchstat_misses.value.ui64 =
+	    wmsum_value(&zfetch_sums.zfetchstat_misses);
+	zs->zfetchstat_max_streams.value.ui64 =
+	    wmsum_value(&zfetch_sums.zfetchstat_max_streams);
+	zs->zfetchstat_io_issued.value.ui64 =
+	    wmsum_value(&zfetch_sums.zfetchstat_io_issued);
+	return (0);
+}
+
 void
 zfetch_init(void)
 {
+	wmsum_init(&zfetch_sums.zfetchstat_hits, 0);
+	wmsum_init(&zfetch_sums.zfetchstat_misses, 0);
+	wmsum_init(&zfetch_sums.zfetchstat_max_streams, 0);
+	wmsum_init(&zfetch_sums.zfetchstat_io_issued, 0);
+
 	zfetch_ksp = kstat_create("zfs", 0, "zfetchstats", "misc",
 	    KSTAT_TYPE_NAMED, sizeof (zfetch_stats) / sizeof (kstat_named_t),
 	    KSTAT_FLAG_VIRTUAL);
 
 	if (zfetch_ksp != NULL) {
 		zfetch_ksp->ks_data = &zfetch_stats;
+		zfetch_ksp->ks_update = zfetch_kstats_update;
 		kstat_install(zfetch_ksp);
 	}
 }
@@ -101,6 +129,11 @@ zfetch_fini(void)
 		kstat_delete(zfetch_ksp);
 		zfetch_ksp = NULL;
 	}
+
+	wmsum_fini(&zfetch_sums.zfetchstat_hits);
+	wmsum_fini(&zfetch_sums.zfetchstat_misses);
+	wmsum_fini(&zfetch_sums.zfetchstat_max_streams);
+	wmsum_fini(&zfetch_sums.zfetchstat_io_issued);
 }
 
 /*
diff --git a/sys/contrib/openzfs/module/zfs/dnode.c b/sys/contrib/openzfs/module/zfs/dnode.c
index 8434e72aa4f8..b1813a8951d5 100644
--- a/sys/contrib/openzfs/module/zfs/dnode.c
+++ b/sys/contrib/openzfs/module/zfs/dnode.c
@@ -592,7 +592,8 @@ dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
 	ibs = MIN(MAX(ibs, DN_MIN_INDBLKSHIFT), DN_MAX_INDBLKSHIFT);
 
 	dprintf("os=%p obj=%llu txg=%llu blocksize=%d ibs=%d dn_slots=%d\n",
-	    dn->dn_objset, dn->dn_object, tx->tx_txg, blocksize, ibs, dn_slots);
+	    dn->dn_objset, (u_longlong_t)dn->dn_object,
+	    (u_longlong_t)tx->tx_txg, blocksize, ibs, dn_slots);
 	DNODE_STAT_BUMP(dnode_allocate);
 
 	ASSERT(dn->dn_type == DMU_OT_NONE);
@@ -1690,7 +1691,7 @@ dnode_setdirty(dnode_t *dn, dmu_tx_t *tx)
 	ASSERT0(dn->dn_next_bonustype[txg & TXG_MASK]);
 
 	dprintf_ds(os->os_dsl_dataset, "obj=%llu txg=%llu\n",
-	    dn->dn_object, txg);
+	    (u_longlong_t)dn->dn_object, (u_longlong_t)txg);
 
 	multilist_sublist_insert_head(mls, dn);
 
@@ -2253,7 +2254,8 @@ done:
 		range_tree_add(dn->dn_free_ranges[txgoff], blkid, nblks);
 	}
 	dprintf_dnode(dn, "blkid=%llu nblks=%llu txg=%llu\n",
-	    blkid, nblks, tx->tx_txg);
+	    (u_longlong_t)blkid, (u_longlong_t)nblks,
+	    (u_longlong_t)tx->tx_txg);
 	mutex_exit(&dn->dn_mtx);
 
 	dbuf_free_range(dn, blkid, blkid + nblks - 1, tx);
diff --git a/sys/contrib/openzfs/module/zfs/dnode_sync.c b/sys/contrib/openzfs/module/zfs/dnode_sync.c
index 66e48a1e17d4..dd37e3af7ed5 100644
--- a/sys/contrib/openzfs/module/zfs/dnode_sync.c
+++ b/sys/contrib/openzfs/module/zfs/dnode_sync.c
@@ -59,7 +59,7 @@ dnode_increase_indirection(dnode_t *dn, dmu_tx_t *tx)
 
 	dn->dn_phys->dn_nlevels = new_level;
 	dprintf("os=%p obj=%llu, increase to %d\n", dn->dn_objset,
-	    dn->dn_object, dn->dn_phys->dn_nlevels);
+	    (u_longlong_t)dn->dn_object, dn->dn_phys->dn_nlevels);
 
 	/*
 	 * Lock ordering requires that we hold the children's db_mutexes (by
@@ -136,7 +136,8 @@ free_blocks(dnode_t *dn, blkptr_t *bp, int num, dmu_tx_t *tx)
 	dsl_dataset_t *ds = dn->dn_objset->os_dsl_dataset;
 	uint64_t bytesfreed = 0;
 
-	dprintf("ds=%p obj=%llx num=%d\n", ds, dn->dn_object, num);
+	dprintf("ds=%p obj=%llx num=%d\n", ds, (u_longlong_t)dn->dn_object,
+	    num);
 
 	for (int i = 0; i < num; i++, bp++) {
 		if (BP_IS_HOLE(bp))
diff --git a/sys/contrib/openzfs/module/zfs/dsl_dataset.c b/sys/contrib/openzfs/module/zfs/dsl_dataset.c
index 9b9bb42287d5..1c03216ef6d5 100644
--- a/sys/contrib/openzfs/module/zfs/dsl_dataset.c
+++ b/sys/contrib/openzfs/module/zfs/dsl_dataset.c
@@ -282,7 +282,7 @@ dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx,
 	if (bp->blk_birth > dsl_dataset_phys(ds)->ds_prev_snap_txg) {
 		int64_t delta;
 
-		dprintf_bp(bp, "freeing ds=%llu", ds->ds_object);
+		dprintf_bp(bp, "freeing ds=%llu", (u_longlong_t)ds->ds_object);
 		dsl_free(tx->tx_pool, tx->tx_txg, bp);
 
 		mutex_enter(&ds->ds_lock);
@@ -721,7 +721,7 @@ dsl_dataset_hold_obj(dsl_pool_t *dp, uint64_t dsobj, void *tag,
 				    dsl_dataset_phys(ds)->ds_fsid_guid,
 				    (long long)ds->ds_fsid_guid,
 				    spa_name(dp->dp_spa),
-				    dsobj);
+				    (u_longlong_t)dsobj);
 			}
 		}
 	}
diff --git a/sys/contrib/openzfs/module/zfs/dsl_destroy.c b/sys/contrib/openzfs/module/zfs/dsl_destroy.c
index 837d78987e75..a2748197f29d 100644
--- a/sys/contrib/openzfs/module/zfs/dsl_destroy.c
+++ b/sys/contrib/openzfs/module/zfs/dsl_destroy.c
@@ -654,7 +654,7 @@ dsl_destroy_snapshots_nvl(nvlist_t *snaps, boolean_t defer,
 		char *errorstr = NULL;
 		(void) nvlist_lookup_string(result, ZCP_RET_ERROR, &errorstr);
 		if (errorstr != NULL) {
-			zfs_dbgmsg(errorstr);
+			zfs_dbgmsg("%s", errorstr);
 		}
 		fnvlist_free(wrapper);
 		fnvlist_free(result);
diff --git a/sys/contrib/openzfs/module/zfs/dsl_dir.c b/sys/contrib/openzfs/module/zfs/dsl_dir.c
index 90dd787023be..df2c3d8f0637 100644
--- a/sys/contrib/openzfs/module/zfs/dsl_dir.c
+++ b/sys/contrib/openzfs/module/zfs/dsl_dir.c
@@ -488,7 +488,7 @@ dsl_dir_hold(dsl_pool_t *dp, const char *name, void *tag,
 		if (next[0] == '@')
 			break;
 		dprintf("looking up %s in obj%lld\n",
-		    buf, dsl_dir_phys(dd)->dd_child_dir_zapobj);
+		    buf, (longlong_t)dsl_dir_phys(dd)->dd_child_dir_zapobj);
 
 		err = zap_lookup(dp->dp_meta_objset,
 		    dsl_dir_phys(dd)->dd_child_dir_zapobj,
@@ -1156,8 +1156,8 @@ dsl_dir_sync(dsl_dir_t *dd, dmu_tx_t *tx)
 
 	mutex_enter(&dd->dd_lock);
 	ASSERT0(dd->dd_tempreserved[tx->tx_txg & TXG_MASK]);
-	dprintf_dd(dd, "txg=%llu towrite=%lluK\n", tx->tx_txg,
-	    dd->dd_space_towrite[tx->tx_txg & TXG_MASK] / 1024);
+	dprintf_dd(dd, "txg=%llu towrite=%lluK\n", (u_longlong_t)tx->tx_txg,
+	    (u_longlong_t)dd->dd_space_towrite[tx->tx_txg & TXG_MASK] / 1024);
 	dd->dd_space_towrite[tx->tx_txg & TXG_MASK] = 0;
 	mutex_exit(&dd->dd_lock);
 
@@ -1344,8 +1344,9 @@ top_of_function:
 			retval = ERESTART;
 		dprintf_dd(dd, "failing: used=%lluK inflight = %lluK "
 		    "quota=%lluK tr=%lluK err=%d\n",
-		    used_on_disk>>10, est_inflight>>10,
-		    quota>>10, asize>>10, retval);
+		    (u_longlong_t)used_on_disk>>10,
+		    (u_longlong_t)est_inflight>>10,
+		    (u_longlong_t)quota>>10, (u_longlong_t)asize>>10, retval);
 		mutex_exit(&dd->dd_lock);
 		DMU_TX_STAT_BUMP(dmu_tx_quota);
 		return (SET_ERROR(retval));
diff --git a/sys/contrib/openzfs/module/zfs/metaslab.c b/sys/contrib/openzfs/module/zfs/metaslab.c
index e588765b3382..0ddad5b026d8 100644
--- a/sys/contrib/openzfs/module/zfs/metaslab.c
+++ b/sys/contrib/openzfs/module/zfs/metaslab.c
@@ -293,7 +293,7 @@ unsigned long zfs_metaslab_max_size_cache_sec = 3600; /* 1 hour */
  * a metaslab would take it over this percentage, the oldest selected metaslab
  * is automatically unloaded.
  */
-int zfs_metaslab_mem_limit = 75;
+int zfs_metaslab_mem_limit = 25;
 
 /*
  * Force the per-metaslab range trees to use 64-bit integers to store
@@ -2437,18 +2437,20 @@ metaslab_load_impl(metaslab_t *msp)
 	    "loading_time %lld ms, ms_max_size %llu, "
 	    "max size error %lld, "
 	    "old_weight %llx, new_weight %llx",
-	    spa_syncing_txg(spa), spa_name(spa),
-	    msp->ms_group->mg_vd->vdev_id, msp->ms_id,
-	    space_map_length(msp->ms_sm),
-	    range_tree_space(msp->ms_unflushed_allocs),
-	    range_tree_space(msp->ms_unflushed_frees),
-	    range_tree_space(msp->ms_freed),
-	    range_tree_space(msp->ms_defer[0]),
-	    range_tree_space(msp->ms_defer[1]),
+	    (u_longlong_t)spa_syncing_txg(spa), spa_name(spa),
+	    (u_longlong_t)msp->ms_group->mg_vd->vdev_id,
+	    (u_longlong_t)msp->ms_id,
+	    (u_longlong_t)space_map_length(msp->ms_sm),
+	    (u_longlong_t)range_tree_space(msp->ms_unflushed_allocs),
+	    (u_longlong_t)range_tree_space(msp->ms_unflushed_frees),
+	    (u_longlong_t)range_tree_space(msp->ms_freed),
+	    (u_longlong_t)range_tree_space(msp->ms_defer[0]),
+	    (u_longlong_t)range_tree_space(msp->ms_defer[1]),
 	    (longlong_t)((load_start - msp->ms_unload_time) / 1000000),
 	    (longlong_t)((load_end - load_start) / 1000000),
-	    msp->ms_max_size, msp->ms_max_size - max_size,
-	    weight, msp->ms_weight);
+	    (u_longlong_t)msp->ms_max_size,
+	    (u_longlong_t)msp->ms_max_size - max_size,
+	    (u_longlong_t)weight, (u_longlong_t)msp->ms_weight);
 
 	metaslab_verify_space(msp, spa_syncing_txg(spa));
 	mutex_exit(&msp->ms_sync_lock);
@@ -2545,14 +2547,17 @@ metaslab_unload(metaslab_t *msp)
 		    "ms_id %llu, weight %llx, "
 		    "selected txg %llu (%llu ms ago), alloc_txg %llu, "
 		    "loaded %llu ms ago, max_size %llu",
-		    spa_syncing_txg(spa), spa_name(spa),
-		    msp->ms_group->mg_vd->vdev_id, msp->ms_id,
-		    msp->ms_weight,
-		    msp->ms_selected_txg,
-		    (msp->ms_unload_time - msp->ms_selected_time) / 1000 / 1000,
-		    msp->ms_alloc_txg,
-		    (msp->ms_unload_time - msp->ms_load_time) / 1000 / 1000,
-		    msp->ms_max_size);
+		    (u_longlong_t)spa_syncing_txg(spa), spa_name(spa),
+		    (u_longlong_t)msp->ms_group->mg_vd->vdev_id,
+		    (u_longlong_t)msp->ms_id,
+		    (u_longlong_t)msp->ms_weight,
+		    (u_longlong_t)msp->ms_selected_txg,
+		    (u_longlong_t)(msp->ms_unload_time -
+		    msp->ms_selected_time) / 1000 / 1000,
+		    (u_longlong_t)msp->ms_alloc_txg,
+		    (u_longlong_t)(msp->ms_unload_time -
+		    msp->ms_load_time) / 1000 / 1000,
+		    (u_longlong_t)msp->ms_max_size);
 	}
 
 	/*
@@ -2914,8 +2919,9 @@ metaslab_set_fragmentation(metaslab_t *msp, boolean_t nodirty)
 			msp->ms_condense_wanted = B_TRUE;
 			vdev_dirty(vd, VDD_METASLAB, msp, txg + 1);
 			zfs_dbgmsg("txg %llu, requesting force condense: "
-			    "ms_id %llu, vdev_id %llu", txg, msp->ms_id,
-			    vd->vdev_id);
+			    "ms_id %llu, vdev_id %llu", (u_longlong_t)txg,
+			    (u_longlong_t)msp->ms_id,
+			    (u_longlong_t)vd->vdev_id);
 		}
 		msp->ms_fragmentation = ZFS_FRAG_INVALID;
 		return;
@@ -3635,10 +3641,11 @@ metaslab_condense(metaslab_t *msp, dmu_tx_t *tx)
 	ASSERT(range_tree_is_empty(msp->ms_freed)); /* since it is pass 1 */
 
 	zfs_dbgmsg("condensing: txg %llu, msp[%llu] %px, vdev id %llu, "
-	    "spa %s, smp size %llu, segments %lu, forcing condense=%s", txg,
-	    msp->ms_id, msp, msp->ms_group->mg_vd->vdev_id,
-	    spa->spa_name, space_map_length(msp->ms_sm),
-	    range_tree_numsegs(msp->ms_allocatable),
+	    "spa %s, smp size %llu, segments %llu, forcing condense=%s",
+	    (u_longlong_t)txg, (u_longlong_t)msp->ms_id, msp,
+	    (u_longlong_t)msp->ms_group->mg_vd->vdev_id,
+	    spa->spa_name, (u_longlong_t)space_map_length(msp->ms_sm),
+	    (u_longlong_t)range_tree_numsegs(msp->ms_allocatable),
 	    msp->ms_condense_wanted ? "TRUE" : "FALSE");
 
 	msp->ms_condense_wanted = B_FALSE;
@@ -3883,11 +3890,13 @@ metaslab_flush(metaslab_t *msp, dmu_tx_t *tx)
 	if (zfs_flags & ZFS_DEBUG_LOG_SPACEMAP) {
 		zfs_dbgmsg("flushing: txg %llu, spa %s, vdev_id %llu, "
 		    "ms_id %llu, unflushed_allocs %llu, unflushed_frees %llu, "
-		    "appended %llu bytes", dmu_tx_get_txg(tx), spa_name(spa),
-		    msp->ms_group->mg_vd->vdev_id, msp->ms_id,
-		    range_tree_space(msp->ms_unflushed_allocs),
-		    range_tree_space(msp->ms_unflushed_frees),
-		    (sm_len_after - sm_len_before));
+		    "appended %llu bytes", (u_longlong_t)dmu_tx_get_txg(tx),
+		    spa_name(spa),
+		    (u_longlong_t)msp->ms_group->mg_vd->vdev_id,
+		    (u_longlong_t)msp->ms_id,
+		    (u_longlong_t)range_tree_space(msp->ms_unflushed_allocs),
+		    (u_longlong_t)range_tree_space(msp->ms_unflushed_frees),
+		    (u_longlong_t)(sm_len_after - sm_len_before));
 	}
 
 	ASSERT3U(spa->spa_unflushed_stats.sus_memused, >=,
diff --git a/sys/contrib/openzfs/module/zfs/mmp.c b/sys/contrib/openzfs/module/zfs/mmp.c
index d05c9db24c20..d9ed457a7107 100644
--- a/sys/contrib/openzfs/module/zfs/mmp.c
+++ b/sys/contrib/openzfs/module/zfs/mmp.c
@@ -485,8 +485,9 @@ mmp_write_uberblock(spa_t *spa)
 	if (mmp->mmp_skip_error != 0) {
 		mmp->mmp_skip_error = 0;
 		zfs_dbgmsg("MMP write after skipping due to unavailable "
-		    "leaves, pool '%s' gethrtime %llu leaf %#llu",
-		    spa_name(spa), gethrtime(), vd->vdev_guid);
+		    "leaves, pool '%s' gethrtime %llu leaf %llu",
+		    spa_name(spa), (u_longlong_t)gethrtime(),
+		    (u_longlong_t)vd->vdev_guid);
 	}
 
 	if (mmp->mmp_zio_root == NULL)
@@ -617,10 +618,11 @@ mmp_thread(void *arg)
 			    "mmp_interval %llu last_mmp_fail_intervals %u "
 			    "mmp_fail_intervals %u mmp_fail_ns %llu "
 			    "skip_wait %d leaves %d next_time %llu",
-			    spa_name(spa), gethrtime(), last_mmp_interval,
-			    mmp_interval, last_mmp_fail_intervals,
-			    mmp_fail_intervals, mmp_fail_ns, skip_wait, leaves,
-			    next_time);
+			    spa_name(spa), (u_longlong_t)gethrtime(),
+			    (u_longlong_t)last_mmp_interval,
+			    (u_longlong_t)mmp_interval, last_mmp_fail_intervals,
+			    mmp_fail_intervals, (u_longlong_t)mmp_fail_ns,
+			    skip_wait, leaves, (u_longlong_t)next_time);
 		}
 
 		/*
@@ -633,8 +635,9 @@ mmp_thread(void *arg)
 			zfs_dbgmsg("MMP state change pool '%s': gethrtime %llu "
 			    "last_spa_multihost %u multihost %u "
 			    "last_spa_suspended %u suspended %u",
-			    spa_name(spa), last_spa_multihost, multihost,
-			    last_spa_suspended, suspended);
+			    spa_name(spa), (u_longlong_t)gethrtime(),
+			    last_spa_multihost, multihost, last_spa_suspended,
+			    suspended);
 			mutex_enter(&mmp->mmp_io_lock);
 			mmp->mmp_last_write = gethrtime();
 			mmp->mmp_delay = mmp_interval;
diff --git a/sys/contrib/openzfs/module/zfs/range_tree.c b/sys/contrib/openzfs/module/zfs/range_tree.c
index 5219fd079b73..595918e5a742 100644
--- a/sys/contrib/openzfs/module/zfs/range_tree.c
+++ b/sys/contrib/openzfs/module/zfs/range_tree.c
@@ -116,7 +116,8 @@ range_tree_stat_verify(range_tree_t *rt)
 	for (i = 0; i < RANGE_TREE_HISTOGRAM_SIZE; i++) {
 		if (hist[i] != rt->rt_histogram[i]) {
 			zfs_dbgmsg("i=%d, hist=%px, hist=%llu, rt_hist=%llu",
-			    i, hist, hist[i], rt->rt_histogram[i]);
+			    i, hist, (u_longlong_t)hist[i],
+			    (u_longlong_t)rt->rt_histogram[i]);
 		}
 		VERIFY3U(hist[i], ==, rt->rt_histogram[i]);
 	}
diff --git a/sys/contrib/openzfs/module/zfs/sa.c b/sys/contrib/openzfs/module/zfs/sa.c
index 5af0aaa7d0aa..2604a7513ecf 100644
--- a/sys/contrib/openzfs/module/zfs/sa.c
+++ b/sys/contrib/openzfs/module/zfs/sa.c
@@ -1292,7 +1292,7 @@ sa_build_index(sa_handle_t *hdl, sa_buf_type_t buftype)
 			mutex_exit(&sa->sa_lock);
 			zfs_dbgmsg("Buffer Header: %x != SA_MAGIC:%x "
 			    "object=%#llx\n", sa_hdr_phys->sa_magic, SA_MAGIC,
-			    db->db.db_object);
+			    (u_longlong_t)db->db.db_object);
 			return (SET_ERROR(EIO));
 		}
 		sa_byteswap(hdl, buftype);
diff --git a/sys/contrib/openzfs/module/zfs/spa.c b/sys/contrib/openzfs/module/zfs/spa.c
index 26995575adaa..bacd04fc0e39 100644
--- a/sys/contrib/openzfs/module/zfs/spa.c
+++ b/sys/contrib/openzfs/module/zfs/spa.c
@@ -2578,8 +2578,9 @@ spa_livelist_delete_cb(void *arg, zthr_t *z)
 			    .to_free = &to_free
 			};
 			zfs_dbgmsg("deleting sublist (id %llu) from"
-			    " livelist %llu, %d remaining",
-			    dle->dle_bpobj.bpo_object, ll_obj, count - 1);
+			    " livelist %llu, %lld remaining",
+			    (u_longlong_t)dle->dle_bpobj.bpo_object,
+			    (u_longlong_t)ll_obj, (longlong_t)count - 1);
 			VERIFY0(dsl_sync_task(spa_name(spa), NULL,
 			    sublist_delete_sync, &sync_arg, 0,
 			    ZFS_SPACE_CHECK_DESTROY));
@@ -2596,7 +2597,8 @@ spa_livelist_delete_cb(void *arg, zthr_t *z)
 		    .ll_obj = ll_obj,
 		    .zap_obj = zap_obj
 		};
-		zfs_dbgmsg("deletion of livelist %llu completed", ll_obj);
+		zfs_dbgmsg("deletion of livelist %llu completed",
+		    (u_longlong_t)ll_obj);
 		VERIFY0(dsl_sync_task(spa_name(spa), NULL, livelist_delete_sync,
 		    &sync_arg, 0, ZFS_SPACE_CHECK_DESTROY));
 	}
@@ -2696,10 +2698,12 @@ spa_livelist_condense_sync(void *arg, dmu_tx_t *tx)
 	dsl_dataset_name(ds, dsname);
 	zfs_dbgmsg("txg %llu condensing livelist of %s (id %llu), bpobj %llu "
 	    "(%llu blkptrs) and bpobj %llu (%llu blkptrs) -> bpobj %llu "
-	    "(%llu blkptrs)", tx->tx_txg, dsname, ds->ds_object, first_obj,
-	    cur_first_size, next_obj, cur_next_size,
-	    first->dle_bpobj.bpo_object,
-	    first->dle_bpobj.bpo_phys->bpo_num_blkptrs);
+	    "(%llu blkptrs)", (u_longlong_t)tx->tx_txg, dsname,
+	    (u_longlong_t)ds->ds_object, (u_longlong_t)first_obj,
+	    (u_longlong_t)cur_first_size, (u_longlong_t)next_obj,
+	    (u_longlong_t)cur_next_size,
+	    (u_longlong_t)first->dle_bpobj.bpo_object,
+	    (u_longlong_t)first->dle_bpobj.bpo_phys->bpo_num_blkptrs);
 out:
 	dmu_buf_rele(ds->ds_dbuf, spa);
 	spa->spa_to_condense.ds = NULL;
@@ -3091,8 +3095,10 @@ spa_activity_check_duration(spa_t *spa, uberblock_t *ub)
 
 		zfs_dbgmsg("fail_intvals>0 import_delay=%llu ub_mmp "
 		    "mmp_fails=%llu ub_mmp mmp_interval=%llu "
-		    "import_intervals=%u", import_delay, MMP_FAIL_INT(ub),
-		    MMP_INTERVAL(ub), import_intervals);
+		    "import_intervals=%llu", (u_longlong_t)import_delay,
+		    (u_longlong_t)MMP_FAIL_INT(ub),
+		    (u_longlong_t)MMP_INTERVAL(ub),
+		    (u_longlong_t)import_intervals);
 
 	} else if (MMP_INTERVAL_VALID(ub) && MMP_FAIL_INT_VALID(ub) &&
 	    MMP_FAIL_INT(ub) == 0) {
@@ -3103,8 +3109,10 @@ spa_activity_check_duration(spa_t *spa, uberblock_t *ub)
 
 		zfs_dbgmsg("fail_intvals=0 import_delay=%llu ub_mmp "
 		    "mmp_interval=%llu ub_mmp_delay=%llu "
-		    "import_intervals=%u", import_delay, MMP_INTERVAL(ub),
-		    ub->ub_mmp_delay, import_intervals);
+		    "import_intervals=%llu", (u_longlong_t)import_delay,
+		    (u_longlong_t)MMP_INTERVAL(ub),
+		    (u_longlong_t)ub->ub_mmp_delay,
+		    (u_longlong_t)import_intervals);
 
 	} else if (MMP_VALID(ub)) {
 		/*
@@ -3115,15 +3123,18 @@ spa_activity_check_duration(spa_t *spa, uberblock_t *ub)
 		    ub->ub_mmp_delay) * import_intervals);
 
 		zfs_dbgmsg("import_delay=%llu ub_mmp_delay=%llu "
-		    "import_intervals=%u leaves=%u", import_delay,
-		    ub->ub_mmp_delay, import_intervals,
+		    "import_intervals=%llu leaves=%u",
+		    (u_longlong_t)import_delay,
+		    (u_longlong_t)ub->ub_mmp_delay,
+		    (u_longlong_t)import_intervals,
 		    vdev_count_leaves(spa));
 	} else {
 		/* Using local tunings is the only reasonable option */
 		zfs_dbgmsg("pool last imported on non-MMP aware "
 		    "host using import_delay=%llu multihost_interval=%llu "
-		    "import_intervals=%u", import_delay, multihost_interval,
-		    import_intervals);
+		    "import_intervals=%llu", (u_longlong_t)import_delay,
+		    (u_longlong_t)multihost_interval,
+		    (u_longlong_t)import_intervals);
 	}
 
 	return (import_delay);
@@ -3191,8 +3202,11 @@ spa_activity_check(spa_t *spa, uberblock_t *ub, nvlist_t *config)
 			    "txg %llu ub_txg  %llu "
 			    "timestamp %llu ub_timestamp  %llu "
 			    "mmp_config %#llx ub_mmp_config %#llx",
-			    txg, ub->ub_txg, timestamp, ub->ub_timestamp,
-			    mmp_config, ub->ub_mmp_config);
+			    (u_longlong_t)txg, (u_longlong_t)ub->ub_txg,
+			    (u_longlong_t)timestamp,
+			    (u_longlong_t)ub->ub_timestamp,
+			    (u_longlong_t)mmp_config,
+			    (u_longlong_t)ub->ub_mmp_config);
 
 			error = SET_ERROR(EREMOTEIO);
 			break;
@@ -8716,12 +8730,16 @@ spa_sync_props(void *arg, dmu_tx_t *tx)
 			spa->spa_comment = spa_strdup(strval);
 			/*
 			 * We need to dirty the configuration on all the vdevs
-			 * so that their labels get updated.  It's unnecessary
-			 * to do this for pool creation since the vdev's
-			 * configuration has already been dirtied.
+			 * so that their labels get updated.  We also need to
+			 * update the cache file to keep it in sync with the
+			 * MOS version. It's unnecessary to do this for pool
+			 * creation since the vdev's configuration has already
+			 * been dirtied.
 			 */
-			if (tx->tx_txg != TXG_INITIAL)
+			if (tx->tx_txg != TXG_INITIAL) {
 				vdev_config_dirty(spa->spa_root_vdev);
+				spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE);
+			}
 			spa_history_log_internal(spa, "set", tx,
 			    "%s=%s", nvpair_name(elem), strval);
 			break;
@@ -8733,8 +8751,11 @@ spa_sync_props(void *arg, dmu_tx_t *tx)
 			/*
 			 * Dirty the configuration on vdevs as above.
 			 */
-			if (tx->tx_txg != TXG_INITIAL)
+			if (tx->tx_txg != TXG_INITIAL) {
 				vdev_config_dirty(spa->spa_root_vdev);
+				spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE);
+			}
+
 			spa_history_log_internal(spa, "set", tx,
 			    "%s=%s", nvpair_name(elem), strval);
 			break;
diff --git a/sys/contrib/openzfs/module/zfs/spa_checkpoint.c b/sys/contrib/openzfs/module/zfs/spa_checkpoint.c
index 5fb614467273..09f62996853d 100644
--- a/sys/contrib/openzfs/module/zfs/spa_checkpoint.c
+++ b/sys/contrib/openzfs/module/zfs/spa_checkpoint.c
@@ -337,17 +337,18 @@ spa_checkpoint_discard_thread_sync(void *arg, dmu_tx_t *tx)
 	spa_checkpoint_accounting_verify(vd->vdev_spa);
 #endif
 
-	zfs_dbgmsg("discarding checkpoint: txg %llu, vdev id %d, "
+	zfs_dbgmsg("discarding checkpoint: txg %llu, vdev id %lld, "
 	    "deleted %llu words - %llu words are left",
-	    tx->tx_txg, vd->vdev_id, (words_before - words_after),
-	    words_after);
+	    (u_longlong_t)tx->tx_txg, (longlong_t)vd->vdev_id,
+	    (u_longlong_t)(words_before - words_after),
+	    (u_longlong_t)words_after);
 
 	if (error != EINTR) {
 		if (error != 0) {
-			zfs_panic_recover("zfs: error %d was returned "
+			zfs_panic_recover("zfs: error %lld was returned "
 			    "while incrementally destroying the checkpoint "
-			    "space map of vdev %llu\n",
-			    error, vd->vdev_id);
+			    "space map of vdev %u\n",
+			    (longlong_t)error, vd->vdev_id);
 		}
 		ASSERT0(words_after);
 		ASSERT0(space_map_allocated(vd->vdev_checkpoint_sm));
diff --git a/sys/contrib/openzfs/module/zfs/spa_history.c b/sys/contrib/openzfs/module/zfs/spa_history.c
index 0482e0f6c39d..dae06e46c316 100644
--- a/sys/contrib/openzfs/module/zfs/spa_history.c
+++ b/sys/contrib/openzfs/module/zfs/spa_history.c
@@ -296,14 +296,17 @@ spa_history_log_sync(void *arg, dmu_tx_t *tx)
 	} else if (nvlist_exists(nvl, ZPOOL_HIST_INT_NAME)) {
 		if (nvlist_exists(nvl, ZPOOL_HIST_DSNAME)) {
 			zfs_dbgmsg("txg %lld %s %s (id %llu) %s",
-			    fnvlist_lookup_uint64(nvl, ZPOOL_HIST_TXG),
+			    (longlong_t)fnvlist_lookup_uint64(nvl,
+			    ZPOOL_HIST_TXG),
 			    fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_NAME),
 			    fnvlist_lookup_string(nvl, ZPOOL_HIST_DSNAME),
-			    fnvlist_lookup_uint64(nvl, ZPOOL_HIST_DSID),
+			    (u_longlong_t)fnvlist_lookup_uint64(nvl,
+			    ZPOOL_HIST_DSID),
 			    fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_STR));
 		} else {
 			zfs_dbgmsg("txg %lld %s %s",
-			    fnvlist_lookup_uint64(nvl, ZPOOL_HIST_TXG),
+			    (longlong_t)fnvlist_lookup_uint64(nvl,
+			    ZPOOL_HIST_TXG),
 			    fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_NAME),
 			    fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_STR));
 		}
diff --git a/sys/contrib/openzfs/module/zfs/spa_misc.c b/sys/contrib/openzfs/module/zfs/spa_misc.c
index 1a2e5abc5335..65b0988d675b 100644
--- a/sys/contrib/openzfs/module/zfs/spa_misc.c
+++ b/sys/contrib/openzfs/module/zfs/spa_misc.c
@@ -615,7 +615,7 @@ spa_deadman(void *arg)
 
 	zfs_dbgmsg("slow spa_sync: started %llu seconds ago, calls %llu",
 	    (gethrtime() - spa->spa_sync_starttime) / NANOSEC,
-	    ++spa->spa_deadman_calls);
+	    (u_longlong_t)++spa->spa_deadman_calls);
 	if (zfs_deadman_enabled)
 		vdev_deadman(spa->spa_root_vdev, FTAG);
 
diff --git a/sys/contrib/openzfs/module/zfs/space_map.c b/sys/contrib/openzfs/module/zfs/space_map.c
index 3db7d199199c..138e6c75ed9b 100644
--- a/sys/contrib/openzfs/module/zfs/space_map.c
+++ b/sys/contrib/openzfs/module/zfs/space_map.c
@@ -877,9 +877,11 @@ space_map_truncate(space_map_t *sm, int blocksize, dmu_tx_t *tx)
 	    doi.doi_data_block_size != blocksize ||
 	    doi.doi_metadata_block_size != 1 << space_map_ibs) {
 		zfs_dbgmsg("txg %llu, spa %s, sm %px, reallocating "
-		    "object[%llu]: old bonus %u, old blocksz %u",
-		    dmu_tx_get_txg(tx), spa_name(spa), sm, sm->sm_object,
-		    doi.doi_bonus_size, doi.doi_data_block_size);
+		    "object[%llu]: old bonus %llu, old blocksz %u",
+		    (u_longlong_t)dmu_tx_get_txg(tx), spa_name(spa), sm,
+		    (u_longlong_t)sm->sm_object,
+		    (u_longlong_t)doi.doi_bonus_size,
+		    doi.doi_data_block_size);
 
 		space_map_free(sm, tx);
 		dmu_buf_rele(sm->sm_dbuf, sm);
diff --git a/sys/contrib/openzfs/module/zfs/txg.c b/sys/contrib/openzfs/module/zfs/txg.c
index 497e19dd58eb..c55b1d8f9601 100644
--- a/sys/contrib/openzfs/module/zfs/txg.c
+++ b/sys/contrib/openzfs/module/zfs/txg.c
@@ -554,7 +554,8 @@ txg_sync_thread(void *arg)
 		    !txg_has_quiesced_to_sync(dp) &&
 		    dp->dp_dirty_total < dirty_min_bytes) {
 			dprintf("waiting; tx_synced=%llu waiting=%llu dp=%p\n",
-			    tx->tx_synced_txg, tx->tx_sync_txg_waiting, dp);
+			    (u_longlong_t)tx->tx_synced_txg,
+			    (u_longlong_t)tx->tx_sync_txg_waiting, dp);
 			txg_thread_wait(tx, &cpr, &tx->tx_sync_more_cv, timer);
 			delta = ddi_get_lbolt() - start;
 			timer = (delta > timeout ? 0 : timeout - delta);
@@ -587,7 +588,8 @@ txg_sync_thread(void *arg)
 		cv_broadcast(&tx->tx_quiesce_more_cv);
 
 		dprintf("txg=%llu quiesce_txg=%llu sync_txg=%llu\n",
-		    txg, tx->tx_quiesce_txg_waiting, tx->tx_sync_txg_waiting);
+		    (u_longlong_t)txg, (u_longlong_t)tx->tx_quiesce_txg_waiting,
+		    (u_longlong_t)tx->tx_sync_txg_waiting);
 		mutex_exit(&tx->tx_sync_lock);
 
 		txg_stat_t *ts = spa_txg_history_init_io(spa, txg, dp);
@@ -638,8 +640,9 @@ txg_quiesce_thread(void *arg)
 
 		txg = tx->tx_open_txg;
 		dprintf("txg=%llu quiesce_txg=%llu sync_txg=%llu\n",
-		    txg, tx->tx_quiesce_txg_waiting,
-		    tx->tx_sync_txg_waiting);
+		    (u_longlong_t)txg,
+		    (u_longlong_t)tx->tx_quiesce_txg_waiting,
+		    (u_longlong_t)tx->tx_sync_txg_waiting);
 		tx->tx_quiescing_txg = txg;
 
 		mutex_exit(&tx->tx_sync_lock);
@@ -649,7 +652,8 @@ txg_quiesce_thread(void *arg)
 		/*
 		 * Hand this txg off to the sync thread.
 		 */
-		dprintf("quiesce done, handing off txg %llu\n", txg);
+		dprintf("quiesce done, handing off txg %llu\n",
+		    (u_longlong_t)txg);
 		tx->tx_quiescing_txg = 0;
 		tx->tx_quiesced_txg = txg;
 		DTRACE_PROBE2(txg__quiesced, dsl_pool_t *, dp, uint64_t, txg);
@@ -705,11 +709,13 @@ txg_wait_synced_impl(dsl_pool_t *dp, uint64_t txg, boolean_t wait_sig)
 	if (tx->tx_sync_txg_waiting < txg)
 		tx->tx_sync_txg_waiting = txg;
 	dprintf("txg=%llu quiesce_txg=%llu sync_txg=%llu\n",
-	    txg, tx->tx_quiesce_txg_waiting, tx->tx_sync_txg_waiting);
+	    (u_longlong_t)txg, (u_longlong_t)tx->tx_quiesce_txg_waiting,
+	    (u_longlong_t)tx->tx_sync_txg_waiting);
 	while (tx->tx_synced_txg < txg) {
 		dprintf("broadcasting sync more "
 		    "tx_synced=%llu waiting=%llu dp=%px\n",
-		    tx->tx_synced_txg, tx->tx_sync_txg_waiting, dp);
+		    (u_longlong_t)tx->tx_synced_txg,
+		    (u_longlong_t)tx->tx_sync_txg_waiting, dp);
 		cv_broadcast(&tx->tx_sync_more_cv);
 		if (wait_sig) {
 			/*
@@ -764,7 +770,8 @@ txg_wait_open(dsl_pool_t *dp, uint64_t txg, boolean_t should_quiesce)
 	if (tx->tx_quiesce_txg_waiting < txg && should_quiesce)
 		tx->tx_quiesce_txg_waiting = txg;
 	dprintf("txg=%llu quiesce_txg=%llu sync_txg=%llu\n",
-	    txg, tx->tx_quiesce_txg_waiting, tx->tx_sync_txg_waiting);
+	    (u_longlong_t)txg, (u_longlong_t)tx->tx_quiesce_txg_waiting,
+	    (u_longlong_t)tx->tx_sync_txg_waiting);
 	while (tx->tx_open_txg < txg) {
 		cv_broadcast(&tx->tx_quiesce_more_cv);
 		/*
diff --git a/sys/contrib/openzfs/module/zfs/vdev.c b/sys/contrib/openzfs/module/zfs/vdev.c
index 5e14d71f1946..4e316d8135ee 100644
--- a/sys/contrib/openzfs/module/zfs/vdev.c
+++ b/sys/contrib/openzfs/module/zfs/vdev.c
@@ -165,7 +165,8 @@ vdev_dbgmsg_print_tree(vdev_t *vd, int indent)
 	char state[20];
 
 	if (vd->vdev_ishole || vd->vdev_ops == &vdev_missing_ops) {
-		zfs_dbgmsg("%*svdev %u: %s", indent, "", vd->vdev_id,
+		zfs_dbgmsg("%*svdev %llu: %s", indent, "",
+		    (u_longlong_t)vd->vdev_id,
 		    vd->vdev_ops->vdev_op_type);
 		return;
 	}
@@ -5208,7 +5209,7 @@ vdev_deadman(vdev_t *vd, char *tag)
 			zio_t *fio;
 			uint64_t delta;
 
-			zfs_dbgmsg("slow vdev: %s has %d active IOs",
+			zfs_dbgmsg("slow vdev: %s has %lu active IOs",
 			    vd->vdev_path, avl_numnodes(&vq->vq_active_tree));
 
 			/*
diff --git a/sys/contrib/openzfs/module/zfs/vdev_indirect.c b/sys/contrib/openzfs/module/zfs/vdev_indirect.c
index 6362683ae93d..1b05ff03a0c5 100644
--- a/sys/contrib/openzfs/module/zfs/vdev_indirect.c
+++ b/sys/contrib/openzfs/module/zfs/vdev_indirect.c
@@ -529,8 +529,9 @@ spa_condense_indirect_complete_sync(void *arg, dmu_tx_t *tx)
 	zfs_dbgmsg("finished condense of vdev %llu in txg %llu: "
 	    "new mapping object %llu has %llu entries "
 	    "(was %llu entries)",
-	    vd->vdev_id, dmu_tx_get_txg(tx), vic->vic_mapping_object,
-	    new_count, old_count);
+	    (u_longlong_t)vd->vdev_id, (u_longlong_t)dmu_tx_get_txg(tx),
+	    (u_longlong_t)vic->vic_mapping_object,
+	    (u_longlong_t)new_count, (u_longlong_t)old_count);
 
 	vdev_config_dirty(spa->spa_root_vdev);
 }
@@ -796,7 +797,7 @@ spa_condense_indirect_start_sync(vdev_t *vd, dmu_tx_t *tx)
 
 	zfs_dbgmsg("starting condense of vdev %llu in txg %llu: "
 	    "posm=%llu nm=%llu",
-	    vd->vdev_id, dmu_tx_get_txg(tx),
+	    (u_longlong_t)vd->vdev_id, (u_longlong_t)dmu_tx_get_txg(tx),
 	    (u_longlong_t)scip->scip_prev_obsolete_sm_object,
 	    (u_longlong_t)scip->scip_next_mapping_object);
 
diff --git a/sys/contrib/openzfs/module/zfs/vdev_removal.c b/sys/contrib/openzfs/module/zfs/vdev_removal.c
index a758fe4fb343..8b0c76ff0a14 100644
--- a/sys/contrib/openzfs/module/zfs/vdev_removal.c
+++ b/sys/contrib/openzfs/module/zfs/vdev_removal.c
@@ -345,8 +345,9 @@ vdev_remove_initiate_sync(void *arg, dmu_tx_t *tx)
 	vdev_config_dirty(vd);
 
 	zfs_dbgmsg("starting removal thread for vdev %llu (%px) in txg %llu "
-	    "im_obj=%llu", vd->vdev_id, vd, dmu_tx_get_txg(tx),
-	    vic->vic_mapping_object);
+	    "im_obj=%llu", (u_longlong_t)vd->vdev_id, vd,
+	    (u_longlong_t)dmu_tx_get_txg(tx),
+	    (u_longlong_t)vic->vic_mapping_object);
 
 	spa_history_log_internal(spa, "vdev remove started", tx,
 	    "%s vdev %llu %s", spa_name(spa), (u_longlong_t)vd->vdev_id,
@@ -474,7 +475,8 @@ spa_restart_removal(spa_t *spa)
 	if (!spa_writeable(spa))
 		return;
 
-	zfs_dbgmsg("restarting removal of %llu", svr->svr_vdev_id);
+	zfs_dbgmsg("restarting removal of %llu",
+	    (u_longlong_t)svr->svr_vdev_id);
 	svr->svr_thread = thread_create(NULL, 0, spa_vdev_remove_thread, spa,
 	    0, &p0, TS_RUN, minclsyspri);
 }
@@ -1196,7 +1198,7 @@ vdev_remove_complete(spa_t *spa)
 	    ESC_ZFS_VDEV_REMOVE_DEV);
 
 	zfs_dbgmsg("finishing device removal for vdev %llu in txg %llu",
-	    vd->vdev_id, txg);
+	    (u_longlong_t)vd->vdev_id, (u_longlong_t)txg);
 
 	/*
 	 * Discard allocation state.
@@ -1490,8 +1492,9 @@ spa_vdev_remove_thread(void *arg)
 
 		vca.vca_msp = msp;
 		zfs_dbgmsg("copying %llu segments for metaslab %llu",
-		    zfs_btree_numnodes(&svr->svr_allocd_segs->rt_root),
-		    msp->ms_id);
+		    (u_longlong_t)zfs_btree_numnodes(
+		    &svr->svr_allocd_segs->rt_root),
+		    (u_longlong_t)msp->ms_id);
 
 		while (!svr->svr_thread_exit &&
 		    !range_tree_is_empty(svr->svr_allocd_segs)) {
@@ -1592,8 +1595,8 @@ spa_vdev_remove_thread(void *arg)
 		    vca.vca_write_error_bytes > 0)) {
 			zfs_dbgmsg("canceling removal due to IO errors: "
 			    "[read_error_bytes=%llu] [write_error_bytes=%llu]",
-			    vca.vca_read_error_bytes,
-			    vca.vca_write_error_bytes);
+			    (u_longlong_t)vca.vca_read_error_bytes,
+			    (u_longlong_t)vca.vca_write_error_bytes);
 			spa_vdev_remove_cancel_impl(spa);
 		}
 	} else {
@@ -1765,7 +1768,7 @@ spa_vdev_remove_cancel_sync(void *arg, dmu_tx_t *tx)
 	vdev_config_dirty(vd);
 
 	zfs_dbgmsg("canceled device removal for vdev %llu in %llu",
-	    vd->vdev_id, dmu_tx_get_txg(tx));
+	    (u_longlong_t)vd->vdev_id, (u_longlong_t)dmu_tx_get_txg(tx));
 	spa_history_log_internal(spa, "vdev remove canceled", tx,
 	    "%s vdev %llu %s", spa_name(spa),
 	    (u_longlong_t)vd->vdev_id,
diff --git a/sys/contrib/openzfs/module/zfs/zap.c b/sys/contrib/openzfs/module/zfs/zap.c
index c0c280c52076..6f03beef3bdb 100644
--- a/sys/contrib/openzfs/module/zfs/zap.c
+++ b/sys/contrib/openzfs/module/zfs/zap.c
@@ -221,7 +221,8 @@ zap_table_grow(zap_t *zap, zap_table_phys_t *tbl,
 	tbl->zt_blks_copied++;
 
 	dprintf("copied block %llu of %llu\n",
-	    tbl->zt_blks_copied, tbl->zt_numblks);
+	    (u_longlong_t)tbl->zt_blks_copied,
+	    (u_longlong_t)tbl->zt_numblks);
 
 	if (tbl->zt_blks_copied == tbl->zt_numblks) {
 		(void) dmu_free_range(zap->zap_objset, zap->zap_object,
@@ -234,7 +235,7 @@ zap_table_grow(zap_t *zap, zap_table_phys_t *tbl,
 		tbl->zt_blks_copied = 0;
 
 		dprintf("finished; numblocks now %llu (%uk entries)\n",
-		    tbl->zt_numblks, 1<<(tbl->zt_shift-10));
+		    (u_longlong_t)tbl->zt_numblks, 1<<(tbl->zt_shift-10));
 	}
 
 	return (0);
@@ -249,7 +250,8 @@ zap_table_store(zap_t *zap, zap_table_phys_t *tbl, uint64_t idx, uint64_t val,
 	ASSERT(RW_LOCK_HELD(&zap->zap_rwlock));
 	ASSERT(tbl->zt_blk != 0);
 
-	dprintf("storing %llx at index %llx\n", val, idx);
+	dprintf("storing %llx at index %llx\n", (u_longlong_t)val,
+	    (u_longlong_t)idx);
 
 	uint64_t blk = idx >> (bs-3);
 	uint64_t off = idx & ((1<<(bs-3))-1);
diff --git a/sys/contrib/openzfs/module/zfs/zap_micro.c b/sys/contrib/openzfs/module/zfs/zap_micro.c
index 5d9bc2076068..b4611685b204 100644
--- a/sys/contrib/openzfs/module/zfs/zap_micro.c
+++ b/sys/contrib/openzfs/module/zfs/zap_micro.c
@@ -563,7 +563,7 @@ zap_lockdir_impl(dmu_buf_t *db, void *tag, dmu_tx_t *tx,
 		uint64_t newsz = db->db_size + SPA_MINBLOCKSIZE;
 		if (newsz > MZAP_MAX_BLKSZ) {
 			dprintf("upgrading obj %llu: num_entries=%u\n",
-			    obj, zap->zap_m.zap_num_entries);
+			    (u_longlong_t)obj, zap->zap_m.zap_num_entries);
 			*zapp = zap;
 			int err = mzap_upgrade(zapp, tag, tx, 0);
 			if (err != 0)
@@ -656,7 +656,7 @@ mzap_upgrade(zap_t **zapp, void *tag, dmu_tx_t *tx, zap_flags_t flags)
 	}
 
 	dprintf("upgrading obj=%llu with %u chunks\n",
-	    zap->zap_object, nchunks);
+	    (u_longlong_t)zap->zap_object, nchunks);
 	/* XXX destroy the avl later, so we can use the stored hash value */
 	mze_destroy(zap);
 
@@ -667,7 +667,7 @@ mzap_upgrade(zap_t **zapp, void *tag, dmu_tx_t *tx, zap_flags_t flags)
 		if (mze->mze_name[0] == 0)
 			continue;
 		dprintf("adding %s=%llu\n",
-		    mze->mze_name, mze->mze_value);
+		    mze->mze_name, (u_longlong_t)mze->mze_value);
 		zap_name_t *zn = zap_name_alloc(zap, mze->mze_name, 0);
 		/* If we fail here, we would end up losing entries */
 		VERIFY0(fzap_add_cd(zn, 8, 1, &mze->mze_value, mze->mze_cd,
@@ -1339,7 +1339,8 @@ zap_update(objset_t *os, uint64_t zapobj, const char *name,
 	} else if (integer_size != 8 || num_integers != 1 ||
 	    strlen(name) >= MZAP_NAME_LEN) {
 		dprintf("upgrading obj %llu: intsz=%u numint=%llu name=%s\n",
-		    zapobj, integer_size, num_integers, name);
+		    (u_longlong_t)zapobj, integer_size,
+		    (u_longlong_t)num_integers, name);
 		err = mzap_upgrade(&zn->zn_zap, FTAG, tx, 0);
 		if (err == 0) {
 			err = fzap_update(zn, integer_size, num_integers,
diff --git a/sys/contrib/openzfs/module/zfs/zcp.c b/sys/contrib/openzfs/module/zfs/zcp.c
index 1ad53eae1eef..f724b44baf1d 100644
--- a/sys/contrib/openzfs/module/zfs/zcp.c
+++ b/sys/contrib/openzfs/module/zfs/zcp.c
@@ -654,7 +654,8 @@ zcp_debug(lua_State *state)
 
 	dbgstring = lua_tostring(state, 1);
 
-	zfs_dbgmsg("txg %lld ZCP: %s", ri->zri_tx->tx_txg, dbgstring);
+	zfs_dbgmsg("txg %lld ZCP: %s", (longlong_t)ri->zri_tx->tx_txg,
+	    dbgstring);
 
 	return (0);
 }
diff --git a/sys/contrib/openzfs/module/zfs/zil.c b/sys/contrib/openzfs/module/zfs/zil.c
index d9c3042084e3..7f11c3913c71 100644
--- a/sys/contrib/openzfs/module/zfs/zil.c
+++ b/sys/contrib/openzfs/module/zfs/zil.c
@@ -1960,7 +1960,7 @@ zil_itx_assign(zilog_t *zilog, itx_t *itx, dmu_tx_t *tx)
 			 * This should be rare.
 			 */
 			zfs_dbgmsg("zil_itx_assign: missed itx cleanup for "
-			    "txg %llu", itxg->itxg_txg);
+			    "txg %llu", (u_longlong_t)itxg->itxg_txg);
 			clean = itxg->itxg_itxs;
 		}
 		itxg->itxg_txg = txg;
@@ -3285,7 +3285,8 @@ zil_close(zilog_t *zilog)
 		txg_wait_synced(zilog->zl_dmu_pool, txg);
 
 	if (zilog_is_dirty(zilog))
-		zfs_dbgmsg("zil (%px) is dirty, txg %llu", zilog, txg);
+		zfs_dbgmsg("zil (%px) is dirty, txg %llu", zilog,
+		    (u_longlong_t)txg);
 	if (txg < spa_freeze_txg(zilog->zl_spa))
 		VERIFY(!zilog_is_dirty(zilog));
 
diff --git a/sys/contrib/openzfs/module/zfs/zio.c b/sys/contrib/openzfs/module/zfs/zio.c
index 66ac545c7981..e33d36dab5f9 100644
--- a/sys/contrib/openzfs/module/zfs/zio.c
+++ b/sys/contrib/openzfs/module/zfs/zio.c
@@ -2014,18 +2014,24 @@ zio_deadman_impl(zio_t *pio, int ziodepth)
 
 		zfs_dbgmsg("slow zio[%d]: zio=%px timestamp=%llu "
 		    "delta=%llu queued=%llu io=%llu "
-		    "path=%s last=%llu "
-		    "type=%d priority=%d flags=0x%x "
-		    "stage=0x%x pipeline=0x%x pipeline-trace=0x%x "
-		    "objset=%llu object=%llu level=%llu blkid=%llu "
-		    "offset=%llu size=%llu error=%d",
+		    "path=%s "
+		    "last=%llu type=%d "
+		    "priority=%d flags=0x%x stage=0x%x "
+		    "pipeline=0x%x pipeline-trace=0x%x "
+		    "objset=%llu object=%llu "
+		    "level=%llu blkid=%llu "
+		    "offset=%llu size=%llu "
+		    "error=%d",
 		    ziodepth, pio, pio->io_timestamp,
-		    delta, pio->io_delta, pio->io_delay,
-		    vd ? vd->vdev_path : "NULL", vq ? vq->vq_io_complete_ts : 0,
-		    pio->io_type, pio->io_priority, pio->io_flags,
-		    pio->io_stage, pio->io_pipeline, pio->io_pipeline_trace,
-		    zb->zb_objset, zb->zb_object, zb->zb_level, zb->zb_blkid,
-		    pio->io_offset, pio->io_size, pio->io_error);
+		    (u_longlong_t)delta, pio->io_delta, pio->io_delay,
+		    vd ? vd->vdev_path : "NULL",
+		    vq ? vq->vq_io_complete_ts : 0, pio->io_type,
+		    pio->io_priority, pio->io_flags, pio->io_stage,
+		    pio->io_pipeline, pio->io_pipeline_trace,
+		    (u_longlong_t)zb->zb_objset, (u_longlong_t)zb->zb_object,
+		    (u_longlong_t)zb->zb_level, (u_longlong_t)zb->zb_blkid,
+		    (u_longlong_t)pio->io_offset, (u_longlong_t)pio->io_size,
+		    pio->io_error);
 		(void) zfs_ereport_post(FM_EREPORT_ZFS_DEADMAN,
 		    pio->io_spa, vd, zb, pio, 0);
 
@@ -3533,7 +3539,8 @@ zio_dva_allocate(zio_t *zio)
 		if (zfs_flags & ZFS_DEBUG_METASLAB_ALLOC) {
 			zfs_dbgmsg("%s: metaslab allocation failure, "
 			    "trying normal class: zio %px, size %llu, error %d",
-			    spa_name(spa), zio, zio->io_size, error);
+			    spa_name(spa), zio, (u_longlong_t)zio->io_size,
+			    error);
 		}
 
 		error = metaslab_alloc(spa, mc, zio->io_size, bp,
@@ -3545,7 +3552,8 @@ zio_dva_allocate(zio_t *zio)
 		if (zfs_flags & ZFS_DEBUG_METASLAB_ALLOC) {
 			zfs_dbgmsg("%s: metaslab allocation failure, "
 			    "trying ganging: zio %px, size %llu, error %d",
-			    spa_name(spa), zio, zio->io_size, error);
+			    spa_name(spa), zio, (u_longlong_t)zio->io_size,
+			    error);
 		}
 		return (zio_write_gang_block(zio, mc));
 	}
@@ -3554,7 +3562,8 @@ zio_dva_allocate(zio_t *zio)
 		    (zfs_flags & ZFS_DEBUG_METASLAB_ALLOC)) {
 			zfs_dbgmsg("%s: metaslab allocation failure: zio %px, "
 			    "size %llu, error %d",
-			    spa_name(spa), zio, zio->io_size, error);
+			    spa_name(spa), zio, (u_longlong_t)zio->io_size,
+			    error);
 		}
 		zio->io_error = error;
 	}
@@ -3680,7 +3689,8 @@ zio_alloc_zil(spa_t *spa, objset_t *os, uint64_t txg, blkptr_t *new_bp,
 		}
 	} else {
 		zfs_dbgmsg("%s: zil block allocation failure: "
-		    "size %llu, error %d", spa_name(spa), size, error);
+		    "size %llu, error %d", spa_name(spa), (u_longlong_t)size,
+		    error);
 	}
 
 	return (error);
diff --git a/sys/contrib/openzfs/tests/runfiles/common.run b/sys/contrib/openzfs/tests/runfiles/common.run
index dd25a55edfd4..5f5e10d133e8 100644
--- a/sys/contrib/openzfs/tests/runfiles/common.run
+++ b/sys/contrib/openzfs/tests/runfiles/common.run
@@ -350,7 +350,8 @@ tests = ['zpool_create_001_pos', 'zpool_create_002_pos',
     'zpool_create_features_003_pos', 'zpool_create_features_004_neg',
     'zpool_create_features_005_pos', 'zpool_create_features_006_pos',
     'zpool_create_features_007_pos', 'zpool_create_features_008_pos',
-    'create-o_ashift', 'zpool_create_tempname', 'zpool_create_dryrun_output']
+    'zpool_create_features_009_pos', 'create-o_ashift',
+    'zpool_create_tempname', 'zpool_create_dryrun_output']
 tags = ['functional', 'cli_root', 'zpool_create']
 
 [tests/functional/cli_root/zpool_destroy]
diff --git a/sys/contrib/openzfs/tests/test-runner/bin/zts-report.py.in b/sys/contrib/openzfs/tests/test-runner/bin/zts-report.py.in
index a3e9f2a82e69..27c865ed5c7a 100755
--- a/sys/contrib/openzfs/tests/test-runner/bin/zts-report.py.in
+++ b/sys/contrib/openzfs/tests/test-runner/bin/zts-report.py.in
@@ -261,6 +261,8 @@ if sys.platform.startswith('freebsd'):
     maybe.update({
         'cli_root/zfs_copies/zfs_copies_002_pos': ['FAIL', known_reason],
         'cli_root/zfs_inherit/zfs_inherit_001_neg': ['FAIL', known_reason],
+        'cli_root/zfs_receive/receive-o-x_props_override':
+            ['FAIL', known_reason],
         'cli_root/zfs_share/zfs_share_011_pos': ['FAIL', known_reason],
         'cli_root/zfs_share/zfs_share_concurrent_shares':
             ['FAIL', known_reason],
@@ -282,6 +284,7 @@ elif sys.platform.startswith('linux'):
         'alloc_class/alloc_class_009_pos': ['FAIL', known_reason],
         'alloc_class/alloc_class_010_pos': ['FAIL', known_reason],
         'alloc_class/alloc_class_011_neg': ['FAIL', known_reason],
+        'alloc_class/alloc_class_012_pos': ['FAIL', known_reason],
         'alloc_class/alloc_class_013_pos': ['FAIL', '11888'],
         'cli_root/zfs_rename/zfs_rename_002_pos': ['FAIL', known_reason],
         'cli_root/zpool_expand/zpool_expand_001_pos': ['FAIL', known_reason],
diff --git a/sys/contrib/openzfs/tests/zfs-tests/include/commands.cfg b/sys/contrib/openzfs/tests/zfs-tests/include/commands.cfg
index 0db9724eead0..1ec73f25bae7 100644
--- a/sys/contrib/openzfs/tests/zfs-tests/include/commands.cfg
+++ b/sys/contrib/openzfs/tests/zfs-tests/include/commands.cfg
@@ -188,7 +188,6 @@ export ZFS_FILES='zdb
     zed
     zgenhostid
     zstream
-    zstreamdump
     zfs_ids_to_path
     zpool_influxdb'
 
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_create/Makefile.am b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_create/Makefile.am
index 5e9e83f0db91..5ffaae5b152c 100644
--- a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_create/Makefile.am
+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_create/Makefile.am
@@ -39,6 +39,7 @@ dist_pkgdata_SCRIPTS = \
 	zpool_create_features_006_pos.ksh \
 	zpool_create_features_007_pos.ksh \
 	zpool_create_features_008_pos.ksh \
+	zpool_create_features_009_pos.ksh \
 	create-o_ashift.ksh \
 	zpool_create_tempname.ksh \
 	zpool_create_dryrun_output.ksh
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_create/zpool_create_features_009_pos.ksh b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_create/zpool_create_features_009_pos.ksh
new file mode 100755
index 000000000000..052c18dcee2b
--- /dev/null
+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/cli_root/zpool_create/zpool_create_features_009_pos.ksh
@@ -0,0 +1,92 @@
+#!/bin/ksh -p
+#
+# 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) 2021 Lawrence Livermore National Security, LLC.
+#
+
+. $STF_SUITE/include/libtest.shlib
+
+#
+# DESCRIPTION:
+#	Verify '-o compatibility' property is updated in both the
+#	pool config MOS object and the cache file.
+#
+# STRATEGY:
+#	1. Create a pool with '-o compatibility=legacy', then verify
+#	   the property exists in the MOS config and cache file.
+#	2. Create a pool, set the 'compatibility=off' property, then
+#	   verify the property exists in the MOS config and cache file.
+#
+
+verify_runnable "global"
+
+function cleanup
+{
+	datasetexists $TESTPOOL && log_must zpool destroy $TESTPOOL
+	rm -f $CACHE_FILE
+}
+
+function check_config
+{
+	typeset propval=$1
+
+	poolval="$(zpool get -H -o value compatibility $TESTPOOL)"
+	if [ "$poolval" != "$propval" ]; then
+		log_fail "compatibility property set incorrectly $curval"
+	fi
+
+	if ! zdb -C -U $CACHE_FILE | grep "compatibility: '$propval'"; then
+		log_fail "compatibility property missing in cache file"
+	fi
+
+	if ! zdb -C -U $CACHE_FILE $TESTPOOL | grep "compatibility: '$propval'"; then
+		log_fail "compatibility property missing from MOS object"
+	fi
+}
+
+log_onexit cleanup
+
+log_assert "verify '-o compatibility' in MOS object and cache file"
+
+CACHE_FILE=$TEST_BASE_DIR/cachefile.$$
+
+# 1. Create a pool with '-o compatibility=legacy', then verify
+#    the property exists in the MOS config and cache file.
+log_must zpool create -f -o cachefile=$CACHE_FILE -o compatibility=legacy $TESTPOOL $DISKS
+log_must check_config legacy
+log_must zpool export -F $TESTPOOL
+log_must zpool import -c $CACHE_FILE $TESTPOOL
+log_must check_config legacy
+log_must zpool destroy -f $TESTPOOL
+
+# 2. Create a pool, set the 'compatibility=off' property, then
+#    verify the property exists in the MOS config and cache file.
+log_must zpool create -f -o cachefile=$CACHE_FILE $TESTPOOL $DISKS
+log_must zpool set compatibility=legacy $TESTPOOL
+log_must check_config legacy
+log_must zpool export -F $TESTPOOL
+log_must zpool import -c $CACHE_FILE $TESTPOOL
+log_must check_config legacy
+log_must zpool destroy -f $TESTPOOL
+
+log_pass "verify '-o compatibility' in MOS object and cache file"
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/redacted_send/redacted_embedded.ksh b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/redacted_send/redacted_embedded.ksh
index 94937a2f79ab..1c5b503a9be5 100755
--- a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/redacted_send/redacted_embedded.ksh
+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/redacted_send/redacted_embedded.ksh
@@ -65,7 +65,7 @@ for recsize in 512 1024 2048 4096 8192 16384; do
 	grep -q "EMBEDDED" $tmpdir/recv.zdb || \
 	    log_fail "Obj $recv_obj not embedded in $recvfs"
 
-	cat $stream | zstreamdump -v | log_must grep -q \
+	cat $stream | zstream dump -v | log_must grep -q \
 	    "WRITE_EMBEDDED object = $send_obj offset = 0"
 done
 
@@ -96,7 +96,7 @@ for recsize in 1024 4096 16384; do
 	grep -q "EMBEDDED" $tmpdir/recv.zdb || \
 	    log_fail "Obj $recv_obj not embedded in $recvfs"
 
-	cat $stream | zstreamdump -v | log_must grep -q \
+	cat $stream | zstream dump -v | log_must grep -q \
 	    "WRITE_EMBEDDED object = $send_obj offset = 0"
 done
 
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/rsend.kshlib b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/rsend.kshlib
index 26755e87d0a5..d06bd39b4d49 100644
--- a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/rsend.kshlib
+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/rsend.kshlib
@@ -584,13 +584,13 @@ function mess_send_file
 	# The random offset might truncate the send stream to be
 	# smaller than the DRR_BEGIN record. If this happens, then
 	# the receiving system won't have enough info to create the
-	# partial dataset at all. We use zstreamdump to check for
+	# partial dataset at all. We use zstream dump to check for
 	# this and retry in this case.
-	nr_begins=$(head -c $offset $file | zstreamdump | \
+	nr_begins=$(head -c $offset $file | zstream dump | \
 	    grep DRR_BEGIN | awk '{ print $5 }')
 	while [ "$nr_begins" -eq 0 ]; do
 		offset=$(($RANDOM * $RANDOM % $filesize))
-		nr_begins=$(head -c $offset $file | zstreamdump | \
+		nr_begins=$(head -c $offset $file | zstream dump | \
 		    grep DRR_BEGIN | awk '{ print $5 }')
 	done
 
@@ -741,7 +741,7 @@ function stream_has_features
 	shift
 
 	[[ -f $file ]] || log_fail "Couldn't find file: $file"
-	typeset flags=$(cat $file | zstreamdump | \
+	typeset flags=$(cat $file | zstream dump | \
 	    awk '/features =/ {features = $3} END {print features}')
 	typeset -A feature
 	feature[dedup]="1"
@@ -774,7 +774,7 @@ function stream_has_features
 # comparing. This function does not currently handle incremental streams
 # that remove data.
 #
-# $1 The zstreamdump output file
+# $1 The zstream dump output file
 # $2 The dataset to compare against
 #    This can be a source of a send or recv target (fs, not snapshot)
 # $3 The percentage below which verification is deemed a failure
@@ -791,7 +791,7 @@ function verify_stream_size
 	[[ -f $stream ]] || log_fail "No such file: $stream"
 	datasetexists $ds || log_fail "No such dataset: $ds"
 
-	typeset stream_size=$(cat $stream | zstreamdump | sed -n \
+	typeset stream_size=$(cat $stream | zstream dump | sed -n \
 	    's/	Total payload size = \(.*\) (0x.*)/\1/p')
 
 	typeset inc_size=0
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-c_embedded_blocks.ksh b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-c_embedded_blocks.ksh
index 70f79b3173b7..3dce217d8955 100755
--- a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-c_embedded_blocks.ksh
+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-c_embedded_blocks.ksh
@@ -63,17 +63,17 @@ for recsize in "${recsize_prop_vals[@]}"; do
 	fi
 done
 
-# Generate the streams and zstreamdump output.
+# Generate the streams and zstream dump output.
 log_must zfs snapshot $sendfs@now
 log_must eval "zfs send -c $sendfs@now >$stream"
-log_must eval "zstreamdump -v <$stream >$dump"
+log_must eval "zstream dump -v <$stream >$dump"
 log_must eval "zfs recv -d $recvfs <$stream"
 cmp_ds_cont $sendfs $recvfs
 verify_stream_size $stream $sendfs
 log_mustnot stream_has_features $stream embed_data
 
 log_must eval "zfs send -c -e $sendfs@now >$stream2"
-log_must eval "zstreamdump -v <$stream2 >$dump2"
+log_must eval "zstream dump -v <$stream2 >$dump2"
 log_must eval "zfs recv -d $recvfs2 <$stream2"
 cmp_ds_cont $sendfs $recvfs2
 verify_stream_size $stream2 $sendfs
@@ -101,9 +101,9 @@ for recsize in "${recsize_prop_vals[@]}"; do
 	    log_fail "Obj $recv2_obj not embedded in $recvfs2"
 
 	grep -q "WRITE_EMBEDDED object = $send_obj offset = 0" $dump && \
-	    log_fail "Obj $obj embedded in zstreamdump output"
+	    log_fail "Obj $obj embedded in zstream dump output"
 	grep -q "WRITE_EMBEDDED object = $send_obj offset = 0" $dump2 || \
-	    log_fail "Obj $obj not embedded in zstreamdump output"
+	    log_fail "Obj $obj not embedded in zstream dump output"
 done
 
 log_pass "Compressed streams can contain embedded blocks."
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-c_zstreamdump.ksh b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-c_zstreamdump.ksh
index b4dc00cec4e7..5b9939c6a64c 100755
--- a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-c_zstreamdump.ksh
+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-c_zstreamdump.ksh
@@ -21,12 +21,12 @@
 
 #
 # Description:
-# Verify compression features show up in zstreamdump
+# Verify compression features show up in zstream dump
 #
 # Strategy:
 # 1. Create a full compressed send stream
-# 2. Verify zstreamdump shows this stream has the relevant features
-# 3. Verify zstreamdump's accounting of logical and compressed size is correct
+# 2. Verify zstream dump shows this stream has the relevant features
+# 3. Verify zstream dump's accounting of logical and compressed size is correct
 # 4. Verify the toname from a resume token
 # 5. Verify it fails with corrupted resume token
 # 6. Verify it fails with missing resume token
@@ -34,7 +34,7 @@
 
 verify_runnable "both"
 
-log_assert "Verify zstreamdump correctly interprets compressed send streams."
+log_assert "Verify zstream dump correctly interprets compressed send streams."
 log_onexit cleanup_pool $POOL2
 
 typeset sendfs=$POOL2/fs
@@ -49,7 +49,7 @@ log_must zfs snapshot $sendfs@full
 
 log_must eval "zfs send -c $sendfs@full >$BACKDIR/full"
 log_must stream_has_features $BACKDIR/full lz4 compressed
-cat $BACKDIR/full | zstreamdump -v > $BACKDIR/dump.out
+cat $BACKDIR/full | zstream dump -v > $BACKDIR/dump.out
 
 lsize=$(awk '/^WRITE [^0]/ {lsize += $24} END {printf("%d", lsize)}' \
     $BACKDIR/dump.out)
@@ -72,4 +72,4 @@ bad_resume_token="1-1162e8285b-100789c6360"
 log_mustnot eval "zstream token $bad_resume_token 2>&1"
 log_mustnot eval "zstream token 2>&1"
 
-log_pass "zstreamdump correctly interprets compressed send streams."
+log_pass "zstream dump correctly interprets compressed send streams."
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-cpL_varied_recsize.ksh b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-cpL_varied_recsize.ksh
index e1ac00c79c96..e2810651a60e 100755
--- a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-cpL_varied_recsize.ksh
+++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/rsend/send-cpL_varied_recsize.ksh
@@ -134,7 +134,7 @@ function check
 	[[ -f $stream ]] && log_must rm $stream
 	log_must eval "zfs send $flags $send_snap >$stream"
 	$verify eval "zfs recv $recv_ds <$stream"
-	typeset stream_size=$(cat $stream | zstreamdump | sed -n \
+	typeset stream_size=$(cat $stream | zstream dump | sed -n \
 	    's/	Total write size = \(.*\) (0x.*)/\1/p')
 
 	#
diff --git a/sys/modules/zfs/zfs_config.h b/sys/modules/zfs/zfs_config.h
index 59041ba82b69..0080a6c775e9 100644
--- a/sys/modules/zfs/zfs_config.h
+++ b/sys/modules/zfs/zfs_config.h
@@ -734,7 +734,7 @@
 /* #undef ZFS_IS_GPL_COMPATIBLE */
 
 /* Define the project alias string. */
-#define ZFS_META_ALIAS "zfs-2.1.0-FreeBSD_g9a865b7fb"
+#define ZFS_META_ALIAS "zfs-2.1.0-FreeBSD_gaee26af27"
 
 /* Define the project author. */
 #define ZFS_META_AUTHOR "OpenZFS"
@@ -764,7 +764,7 @@
 #define ZFS_META_NAME "zfs"
 
 /* Define the project release. */
-#define ZFS_META_RELEASE "FreeBSD_g9a865b7fb"
+#define ZFS_META_RELEASE "FreeBSD_gaee26af27"
 
 /* Define the project version. */
 #define ZFS_META_VERSION "2.1.0"