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96b9cf42e0e4b182b1a6969a89dc44391196e59f
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Alexander Motin 96b9cf42e0 ARC: Remove b_bufcnt/b_ebufcnt from ARC headers 
In most cases we do not care about exact number of buffers linked
to the header, we just need to know if it is zero, non-zero or one.
That can easily be checked just looking on b_buf pointer or in some
cases derefencing it.

b_ebufcnt is read only once, and in that case we already traverse
the list as part of arc_buf_remove(), so second traverse should not
be expensive.

This reduces L1 ARC header size by 8 bytes and full crypto header by
16 bytes, down to 176 and 232 bytes on FreeBSD respectively.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15350
2023-10-06 08:56:17 -07:00
..
abd.c
Fix two abd_gang_add_gang() issues.
2023-05-05 09:17:55 -07:00
aggsum.c
Remove bcopy(), bzero(), bcmp()
2022-03-15 15:13:42 -07:00
arc.c
ARC: Remove b_bufcnt/b_ebufcnt from ARC headers
2023-10-06 08:56:17 -07:00
blake3_zfs.c
blake3: fix up bogus checksums in face of cpu migration
2023-05-01 17:21:27 -07:00
blkptr.c
Remove bcopy(), bzero(), bcmp()
2022-03-15 15:13:42 -07:00
bplist.c
Use list_remove_head() where possible.
2023-06-09 10:12:52 -07:00
bpobj.c
Add explicit prefetches to bpobj_iterate().
2023-07-21 11:50:48 -07:00
bptree.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
bqueue.c
Batch enqueue/dequeue for bqueue
2023-01-10 13:39:22 -08:00
brt.c
zfs_clone_range should return a descriptive error codes
2023-08-08 09:37:06 -07:00
btree.c
btree: Implement faster binary search algorithm
2023-05-26 10:03:12 -07:00
dataset_kstats.c
zil: Add some more statistics.
2023-05-25 13:51:53 -07:00
dbuf_stats.c
Revert "Reduce dbuf_find() lock contention"
2022-09-22 12:59:41 -07:00
dbuf.c
Use ASSERT0P() to check that a pointer is NULL.
2023-09-19 17:22:01 -07:00
ddt_zap.c
Pack our DDT ZAPs a bit denser.
2023-06-30 09:42:02 -07:00
ddt.c
ddt_addref: remove unnecessary phys fill when refcount is 0
2023-06-30 09:01:58 -07:00
dmu_diff.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
dmu_object.c
zfs redact fails when dnodesize=auto
2023-02-16 09:23:39 -08:00
dmu_objset.c
Remove ARC/ZIO physdone callbacks.
2023-06-15 10:49:03 -07:00
dmu_recv.c
Fix raw receive with different indirect block size.
2023-07-14 16:16:40 -07:00
dmu_redact.c
Increase limit of redaction list by using spill block
2023-08-26 11:34:43 -07:00
dmu_send.c
zdb: add -B option to generate backup stream
2023-06-05 11:54:42 -07:00
dmu_traverse.c
Fix prefetching of indirect blocks while destroying
2023-03-24 10:20:07 -07:00
dmu_tx.c
Use list_remove_head() where possible.
2023-06-09 10:12:52 -07:00
dmu_zfetch.c
Adjust prefetch parameters.
2023-07-21 11:51:47 -07:00
dmu.c
ZIL: Avoid dbuf_read() before dmu_sync().
2023-08-11 09:04:08 -07:00
dnode_sync.c
free_blocks(): Fix reports from 2016 PVS Studio FreeBSD report
2023-01-23 13:12:37 -08:00
dnode.c
Increase limit of redaction list by using spill block
2023-08-26 11:34:43 -07:00
dsl_bookmark.c
Increase limit of redaction list by using spill block
2023-08-26 11:34:43 -07:00
dsl_crypt.c
nvpair: Constify string functions
2023-03-14 15:25:50 -07:00
dsl_dataset.c
Use list_remove_head() where possible.
2023-06-09 10:12:52 -07:00
dsl_deadlist.c
Refactor dmu_prefetch().
2023-08-07 13:54:41 -07:00
dsl_deleg.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
dsl_destroy.c
Increase limit of redaction list by using spill block
2023-08-26 11:34:43 -07:00
dsl_dir.c
Fix ENOSPC for extended quota
2023-09-28 14:10:07 -07:00
dsl_pool.c
Move dmu_buf_rele() after dsl_dataset_sync_done()
2023-02-23 18:14:52 -07:00
dsl_prop.c
nvpair: Constify string functions
2023-03-14 15:25:50 -07:00
dsl_scan.c
Do not request data L1 buffers on scan prefetch.
2023-07-20 09:10:04 -07:00
dsl_synctask.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
dsl_userhold.c
nvpair: Constify string functions
2023-03-14 15:25:50 -07:00
edonr_zfs.c
Remove unused Edon-R variants
2023-03-14 15:59:58 -07:00
fm.c
Use list_remove_head() where possible.
2023-06-09 10:12:52 -07:00
gzip.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
hkdf.c
Remove bcopy(), bzero(), bcmp()
2022-03-15 15:13:42 -07:00
lz4_zfs.c
Updated the lz4 decompressor
2022-01-07 10:36:49 -08:00
lz4.c
lz4: Cherrypick fix for CVE-2021-3520
2022-01-12 16:14:36 -08:00
lzjb.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
metaslab.c
Don't allocate from new metaslabs
2023-09-28 14:08:52 -07:00
mmp.c
Allow MMP to bypass waiting for other threads
2023-04-19 13:22:59 -07:00
multilist.c
Cleanup: Specify unsignedness on things that should not be signed
2022-09-27 16:42:41 -07:00
objlist.c
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
pathname.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
range_tree.c
btree: Implement faster binary search algorithm
2023-05-26 10:03:12 -07:00
refcount.c
Switch refcount tracking from lists to AVL-trees.
2023-06-14 08:02:27 -07:00
rrwlock.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
sa.c
Cleanup: Remove constant comparisons reported by CodeQL
2023-03-08 13:51:46 -08:00
sha2_zfs.c
Add generic implementation handling and SHA2 impl
2023-03-02 13:52:21 -08:00
skein_zfs.c
Remove bcopy(), bzero(), bcmp()
2022-03-15 15:13:42 -07:00
spa_checkpoint.c
Cleanup: 64-bit kernel module parameters should use fixed width types
2022-10-13 10:03:29 -07:00
spa_config.c
nvpair: Constify string functions
2023-03-14 15:25:50 -07:00
spa_errlog.c
Update the MOS directory on spa_upgrade_errlog()
2023-09-18 17:06:35 -07:00
spa_history.c
nvpair: Constify string functions
2023-03-14 15:25:50 -07:00
spa_log_spacemap.c
Refactor dmu_prefetch().
2023-08-07 13:54:41 -07:00
spa_misc.c
status: report pool suspension state under failmode=continue
2023-09-20 16:56:45 -07:00
spa_stats.c
Cleanup: Specify unsignedness on things that should not be signed
2022-09-27 16:42:41 -07:00
spa.c
Selectable block allocators
2023-09-01 18:00:30 -07:00
space_map.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
space_reftree.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
THIRDPARTYLICENSE.cityhash
OpenZFS 8484 - Implement aggregate sum and use for arc counters
2018-06-06 09:35:59 -07:00
THIRDPARTYLICENSE.cityhash.descrip
OpenZFS 8484 - Implement aggregate sum and use for arc counters
2018-06-06 09:35:59 -07:00
txg.c
Another set of vdev queue optimizations.
2023-06-27 09:09:48 -07:00
uberblock.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
unique.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_draid_rand.c
Distributed Spare (dRAID) Feature
2020-11-13 13:51:51 -08:00
vdev_draid.c
nvpair: Constify string functions
2023-03-14 15:25:50 -07:00
vdev_indirect_births.c
Remove bcopy(), bzero(), bcmp()
2022-03-15 15:13:42 -07:00
vdev_indirect_mapping.c
Remove bcopy(), bzero(), bcmp()
2022-03-15 15:13:42 -07:00
vdev_indirect.c
Don't emit cksum_{actual_expected} in ereport.fs.zfs.checksum events
2023-07-21 11:49:26 -07:00
vdev_initialize.c
Add the ability to uninitialize
2023-05-18 10:02:20 -07:00
vdev_label.c
Report ashift of L2ARC devices in zdb
2023-10-02 16:57:09 -07:00
vdev_mirror.c
Improve too large physical ashift handling
2022-09-08 10:30:53 -07:00
vdev_missing.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_queue.c
Another set of vdev queue optimizations.
2023-06-27 09:09:48 -07:00
vdev_raidz_math_aarch64_neon_common.h
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_raidz_math_aarch64_neon.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_raidz_math_aarch64_neonx2.c
Fix Clang 15 compilation errors
2022-11-30 13:46:26 -08:00
vdev_raidz_math_avx2.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_raidz_math_avx512bw.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_raidz_math_avx512f.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_raidz_math_impl.h
Cleanup Raid-Z Typo fixes
2022-09-06 09:43:21 -07:00
vdev_raidz_math_powerpc_altivec_common.h
Linux ppc64le ieee128 compat: Do not redefine __asm on external headers
2023-01-13 10:58:58 -08:00
vdev_raidz_math_powerpc_altivec.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_raidz_math_scalar.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_raidz_math_sse2.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_raidz_math_ssse3.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_raidz_math.c
Miscellaneous FreBSD compilation bugfixes
2023-04-06 10:35:02 -07:00
vdev_raidz.c
Don't emit cksum_{actual_expected} in ereport.fs.zfs.checksum events
2023-07-21 11:49:26 -07:00
vdev_rebuild.c
Tweak rebuild in-flight hard limit
2023-09-29 08:21:25 -07:00
vdev_removal.c
nvpair: Constify string functions
2023-03-14 15:25:50 -07:00
vdev_root.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
vdev_trim.c
Fix short-lived txg caused by autotrim
2023-03-28 08:43:41 -07:00
vdev.c
Remove fastwrite mechanism.
2023-07-28 13:30:33 -07:00
zap_leaf.c
Cleanup: Remove constant comparisons reported by CodeQL
2023-03-08 13:51:46 -08:00
zap_micro.c
btree: Implement faster binary search algorithm
2023-05-26 10:03:12 -07:00
zap.c
Cleanup: Use NULL when doing NULL pointer comparisons
2023-01-12 16:00:37 -08:00
zcp_get.c
nvpair: Constify string functions
2023-03-14 15:25:50 -07:00
zcp_global.c
OpenZFS 8600 - ZFS channel programs - snapshot
2018-02-08 15:29:24 -08:00
zcp_iter.c
nvpair: Constify string functions
2023-03-14 15:25:50 -07:00
zcp_set.c
Support setting user properties in a channel program
2020-02-14 13:41:42 -08:00
zcp_synctask.c
Add zfs.sync.snapshot_rename
2022-09-02 13:31:19 -07:00
zcp.c
nvpair: Constify string functions
2023-03-14 15:25:50 -07:00
zfeature.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
zfs_byteswap.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
zfs_chksum.c
Add generic implementation handling and SHA2 impl
2023-03-02 13:52:21 -08:00
zfs_fm.c
Don't emit cksum_{actual_expected} in ereport.fs.zfs.checksum events
2023-07-21 11:49:26 -07:00
zfs_fuid.c
Use list_remove_head() where possible.
2023-06-09 10:12:52 -07:00
zfs_impl.c
Add generic implementation handling and SHA2 impl
2023-03-02 13:52:21 -08:00
zfs_ioctl.c
Teach zpool scrub to scrub only blocks in error log
2023-05-18 11:59:42 -07:00
zfs_log.c
Fix VERIFY(!zil_replaying(zilog, tx)) panic
2023-04-17 16:42:09 -07:00
zfs_onexit.c
Use list_remove_head() where possible.
2023-06-09 10:12:52 -07:00
zfs_quota.c
Implementation of block cloning for ZFS
2023-03-10 11:59:53 -08:00
zfs_ratelimit.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
zfs_replay.c
Linux 6.3 compat: idmapped mount API changes
2023-04-10 14:15:36 -07:00
zfs_rlock.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
zfs_sa.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
zfs_vnops.c
Restrict short block cloning requests
2023-09-29 08:22:46 -07:00
zil.c
ZIL: Fix potential race on flush deferring.
2023-09-20 11:17:11 -07:00
zio_checksum.c
Don't emit cksum_{actual_expected} in ereport.fs.zfs.checksum events
2023-07-21 11:49:26 -07:00
zio_compress.c
Skip memory allocation when compressing holes
2023-02-27 14:41:02 -08:00
zio_inject.c
Cleanup: Switch to strlcpy from strncpy
2022-09-27 16:35:29 -07:00
zio.c
Update outdated assertion from zio_write_compress
2023-08-25 10:28:36 -07:00
zle.c
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
zrlock.c
Micro-optimize zrl_remove()
2022-11-29 09:26:03 -08:00
zthr.c
Switch from _Noreturn to __attribute__((noreturn))
2022-03-23 08:51:00 -07:00
zvol.c
ZIL: Second attempt to reduce scope of zl_issuer_lock.
2023-08-24 17:08:49 -07:00