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Alexander Motin c1b5869bab Introduce dsl_dir_diduse_transfer_space() 
Most of dsl_dir_diduse_space() and dsl_dir_transfer_space() CPU time
is a dd_lock overhead and time spent in dmu_buf_will_dirty(). Calling
them one after another is a waste of time and even more contention.
Doing that twice for each rewritten block within dbuf_write_done()
via dsl_dataset_block_kill() and dsl_dataset_block_born() created one
of the biggest CPU overheads in case of small blocks rewrite.

dsl_dir_diduse_transfer_space() combines functionality of these two
functions for cases where it is needed, but without double overhead,
practically for the cost of dsl_dir_diduse_space() or even cheaper.

While there, optimize dsl_dir_phys() calls in dsl_dir_diduse_space()
and dsl_dir_transfer_space().  It seems Clang detects some aliasing
there, repeating dd->dd_dbuf->db_data dereference multiple times,
increasing dd_lock scope and contention.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Author: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-By: iXsystems, Inc.
Closes #12300
2021-07-16 13:39:24 -06:00
..
crypto
gcc 11 cleanup
2021-06-23 17:57:06 -06:00
fm
file reference counts can get corrupted
2021-07-10 19:00:37 -06:00
fs
libzfs: convert to -fvisibility=hidden
2021-06-03 13:17:55 -07:00
lua
FreeBSD: Reduce stack usage of Lua
2020-09-22 16:03:11 -07:00
sysevent
Avoid installing kernel headers on FreeBSD
2020-06-27 17:40:14 -07:00
zstd
zstd: track allocator statistics
2020-10-30 15:26:10 -07:00
abd_impl.h
Fix abd leak, kmem_free correct size of abd_t
2021-07-01 09:28:15 -06:00
abd.h
FreeBSD: Hardcode abd_chunk_size to PAGE_SIZE
2021-07-06 17:39:23 -07:00
aggsum.h
More aggsum optimizations
2021-06-07 09:02:47 -07:00
arc_impl.h
Fix ARC ghost states eviction accounting
2021-07-13 09:41:59 -06:00
arc.h
Implement memory and CPU hotplug
2020-12-10 14:09:23 -08:00
avl_impl.h
Remove avl_size field from struct avl_tree
2021-07-01 09:32:31 -06:00
avl.h
lib{efi,avl,share,tpool,zfs_core,zfsbootenv,zutil}: -fvisibility=hidden
2021-06-09 17:04:32 -07:00
bitops.h
Reduce loaded range tree memory usage
2019-10-09 10:36:03 -07:00
blkptr.h
OpenZFS 8067 - zdb should be able to dump literal embedded block pointer
2017-07-07 11:28:01 -07:00
bplist.h
Fast Clone Deletion
2019-07-26 10:54:14 -07:00
bpobj.h
Fast Clone Deletion
2019-07-26 10:54:14 -07:00
bptree.h
Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t
2014-08-06 14:48:41 -07:00
bqueue.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
btree.h
Fix typos
2020-06-09 21:24:09 -07:00
dataset_kstats.h
Introduce write-mostly sums
2021-05-27 14:27:29 -06:00
dbuf.h
dprintf_dnode: strcpy -> strlcpy
2021-07-07 21:13:40 -06:00
ddt.h
Appease GCC sprintf warnings found on Fedora 32/GCC 10.0.1
2020-08-24 10:32:59 -07:00
dmu_impl.h
Remove UIO_ZEROCOPY functions structures
2020-10-30 10:00:33 -07:00
dmu_objset.h
Re-embed multilist_t storage
2021-06-10 10:42:31 -06:00
dmu_recv.h
Removed duplicated includes
2021-03-22 12:34:58 -07:00
dmu_redact.h
Suppress cppcheck invalidSyntax warninigs
2021-03-05 17:56:35 -08:00
dmu_send.h
Removed duplicated includes
2021-03-22 12:34:58 -07:00
dmu_traverse.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
dmu_tx.h
Rename refcount.h to zfs_refcount.h
2020-07-29 16:35:33 -07:00
dmu_zfetch.h
Split dmu_zfetch() speculation and execution parts
2021-03-19 22:56:11 -07:00
dmu.h
Set aside a metaslab for ZIL blocks
2021-01-21 15:12:54 -08:00
dnode.h
dprintf_dnode: strcpy -> strlcpy
2021-07-07 21:13:40 -06:00
dsl_bookmark.h
Rename refcount.h to zfs_refcount.h
2020-07-29 16:35:33 -07:00
dsl_crypt.h
dmu_objset_from_ds must be called with dp_config_rwlock held
2020-03-12 10:55:02 -07:00
dsl_dataset.h
implicit conversion from 'boolean_t' to 'ds_hold_flags_t'
2020-12-27 16:31:02 -08:00
dsl_deadlist.h
Add fast path for zfs_ioc_space_snaps() handling of empty_bpobj
2019-08-20 11:34:52 -07:00
dsl_deleg.h
Remove code for zfs remap
2019-06-24 16:44:01 -07:00
dsl_destroy.h
Fast Clone Deletion
2019-07-26 10:54:14 -07:00
dsl_dir.h
Introduce dsl_dir_diduse_transfer_space()
2021-07-16 13:39:24 -06:00
dsl_pool.h
Eliminate Linux specific inode usage from common code
2019-12-11 11:53:57 -08:00
dsl_prop.h
Support inheriting properties in channel programs
2020-01-22 17:03:17 -08:00
dsl_scan.h
Use dsl_scan_setup_check() to setup a scrub
2021-04-08 14:33:15 -07:00
dsl_synctask.h
Add upper bound for slop space calculation
2021-02-24 09:52:43 -08:00
dsl_userhold.h
Illumos #3740
2013-11-04 11:17:48 -08:00
edonr.h
OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
2016-10-03 14:51:15 -07:00
efi_partition.h
lib{efi,avl,share,tpool,zfs_core,zfsbootenv,zutil}: -fvisibility=hidden
2021-06-09 17:04:32 -07:00
frame.h
Linux 5.10 compat: frame.h renamed objtool.h
2020-11-02 22:01:10 +00:00
hkdf.h
Encryption patch follow-up
2017-10-11 16:54:48 -04:00
Makefile.am
Restore FreeBSD resource usage accounting
2021-02-19 22:34:33 -08:00
metaslab_impl.h
Re-embed multilist_t storage
2021-06-10 10:42:31 -06:00
metaslab.h
Only examine best metaslabs on each vdev
2020-12-16 14:40:05 -08:00
mmp.h
Add zfs_multihost_interval tunable handler for FreeBSD
2020-06-23 13:32:42 -07:00
mntent.h
Add FreeBSD required defines to mntent.h
2019-11-30 15:49:09 -08:00
mod.h
Replace ZFS on Linux references with OpenZFS
2020-10-08 20:10:13 -07:00
multilist.h
Re-embed multilist_t storage
2021-06-10 10:42:31 -06:00
note.h
Update build system and packaging
2018-05-29 16:00:33 -07:00
nvpair_impl.h
OpenZFS 9580 - Add a hash-table on top of nvlist to speed-up operations
2018-07-30 11:30:03 -07:00
nvpair.h
lib{efi,avl,share,tpool,zfs_core,zfsbootenv,zutil}: -fvisibility=hidden
2021-06-09 17:04:32 -07:00
objlist.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
pathname.h
Replace ZFS on Linux references with OpenZFS
2020-10-08 20:10:13 -07:00
qat.h
QAT related bug fixes
2019-09-12 13:33:44 -07:00
range_tree.h
Improve compatibility with C++ consumers
2020-06-06 12:54:04 -07:00
rrwlock.h
Rename refcount.h to zfs_refcount.h
2020-07-29 16:35:33 -07:00
sa_impl.h
Rename refcount.h to zfs_refcount.h
2020-07-29 16:35:33 -07:00
sa.h
Extending FreeBSD UIO Struct
2021-01-20 21:27:30 -08:00
skein.h
OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
2016-10-03 14:51:15 -07:00
spa_boot.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
spa_checkpoint.h
Serialize ZTHR operations to eliminate races
2019-01-13 10:09:46 -08:00
spa_checksum.h
Implementation of AVX2 optimized Fletcher-4
2016-06-02 14:30:51 -07:00
spa_impl.h
Remove refcount from spa_config_*()
2021-07-01 09:16:54 -06:00
spa_log_spacemap.h
Log Spacemap Project
2019-07-16 10:11:49 -07:00
spa.h
Optimize small random numbers generation
2021-06-22 17:35:23 -06:00
space_map.h
Extend zdb to print inconsistencies in livelists and metaslabs
2020-07-14 17:51:05 -07:00
space_reftree.h
Reduce loaded range tree memory usage
2019-10-09 10:36:03 -07:00
sysevent.h
OpenZFS 6939 - add sysevents to zfs core for commands
2017-07-12 21:28:13 -07:00
txg_impl.h
Fix typos in include/
2019-08-30 09:53:15 -07:00
txg.h
Optimize txg_kick() process (#12274)
2021-07-01 09:20:27 -06:00
u8_textprep_data.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
u8_textprep.h
Throw const on some strings
2020-10-02 17:44:10 -07:00
uberblock_impl.h
MMP interval and fail_intervals in uberblock
2019-03-21 12:47:57 -07:00
uberblock.h
Multi-modifier protection (MMP)
2017-07-13 13:54:00 -04:00
uio_impl.h
Cleaning up uio headers
2021-02-20 20:16:50 -08:00
unique.h
Illumos #3742
2013-11-04 10:55:25 -08:00
uuid.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
vdev_disk.h
Make struct vdev_disk_t be platform private
2020-06-16 11:43:33 -07:00
vdev_draid.h
Fix various typos
2021-04-02 18:52:15 -07:00
vdev_file.h
Add zfs_file_* interface, remove vnodes
2019-11-21 09:32:57 -08:00
vdev_impl.h
Ratelimit deadman zevents as with delay zevents
2021-04-07 16:23:57 -07:00
vdev_indirect_births.h
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
vdev_indirect_mapping.h
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
vdev_initialize.h
Add TRIM support
2019-03-29 09:13:20 -07:00
vdev_raidz_impl.h
Fix dRAID sequential resilver silent damage handling
2021-05-20 15:05:26 -07:00
vdev_raidz.h
Clean up RAIDZ/DRAID ereport code
2021-03-19 16:22:10 -07:00
vdev_rebuild.h
Fix various typos
2021-04-02 18:52:15 -07:00
vdev_removal.h
panic in removal_remap test on 4K devices
2019-06-13 13:12:39 -07:00
vdev_trim.h
Trim L2ARC
2020-06-09 10:15:08 -07:00
vdev.h
Use a helper function to clarify gang block size
2021-03-26 11:19:35 -07:00
xvattr.h
Linux 4.18 compat: inode timespec -> timespec64
2018-06-19 21:51:18 -07:00
zap_impl.h
OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space
2017-03-07 09:51:59 -08:00
zap_leaf.h
Fix ENOSPC in "Handle zap_add() failures in ..."
2018-04-18 14:19:50 -07:00
zap.h
fat zap should prefetch when iterating
2019-06-12 13:13:09 -07:00
zcp_global.h
OpenZFS 7431 - ZFS Channel Programs
2018-02-08 15:28:18 -08:00
zcp_iter.h
OpenZFS 7431 - ZFS Channel Programs
2018-02-08 15:28:18 -08:00
zcp_prop.h
OpenZFS 7431 - ZFS Channel Programs
2018-02-08 15:28:18 -08:00
zcp_set.h
Support setting user properties in a channel program
2020-02-14 13:41:42 -08:00
zcp.h
filesystem_limit/snapshot_limit is incorrectly enforced against root
2020-07-11 17:18:02 -07:00
zfeature.h
Revert "zhack: Add 'feature disable' command"
2016-05-17 11:52:07 -07:00
zfs_acl.h
Return an error code from zfs_acl_chmod_setattr
2019-11-01 10:19:11 -07:00
zfs_bootenv.h
zfs label bootenv should store data as nvlist
2020-09-15 15:42:27 -07:00
zfs_context.h
FreeBSD: fix compilation of FreeBSD world after 29274c9f6
2021-06-25 10:28:51 -07:00
zfs_debug.h
Annotated dprintf as printf-like
2021-06-22 21:53:45 -07:00
zfs_delay.h
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_file.h
file reference counts can get corrupted
2021-07-10 19:00:37 -06:00
zfs_fuid.h
Replace sprintf()->snprintf() and strcpy()->strlcpy()
2020-06-07 11:42:12 -07:00
zfs_ioctl_impl.h
libzfs: On FreeBSD, use MNT_NOWAIT with getfsstat
2021-06-08 07:36:43 -06:00
zfs_ioctl.h
file reference counts can get corrupted
2021-07-10 19:00:37 -06:00
zfs_onexit.h
file reference counts can get corrupted
2021-07-10 19:00:37 -06:00
zfs_project.h
Minor diff reduction with ZoF in include/sys
2019-11-27 11:11:03 -08:00
zfs_quota.h
File incorrectly zeroed when receiving incremental stream that toggles -L
2020-06-09 10:41:01 -07:00
zfs_racct.h
Restore FreeBSD resource usage accounting
2021-02-19 22:34:33 -08:00
zfs_ratelimit.h
Change checksum & IO delay ratelimit values
2018-03-04 17:34:51 -08:00
zfs_refcount.h
Rename refcount.h to zfs_refcount.h
2020-07-29 16:35:33 -07:00
zfs_rlock.h
Add a "try" operation for range locks
2020-07-06 11:53:31 -07:00
zfs_sa.h
Extending FreeBSD UIO Struct
2021-01-20 21:27:30 -08:00
zfs_stat.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
zfs_sysfs.h
libzfs: convert to -fvisibility=hidden
2021-06-03 13:17:55 -07:00
zfs_vfsops.h
Add 'zfs rename -u' to rename without remounting
2020-09-01 16:14:16 -07:00
zfs_vnops.h
Extending FreeBSD UIO Struct
2021-01-20 21:27:30 -08:00
zfs_znode.h
Rename zfs_inode_update to zfs_znode_update_vfs
2021-02-09 11:17:29 -08:00
zil_impl.h
make zil max block size tunable
2019-06-10 11:48:42 -07:00
zil.h
Fix zfs_get_data access to files with wrong generation
2021-03-19 22:53:31 -07:00
zio_checksum.h
libzfs: convert to -fvisibility=hidden
2021-06-03 13:17:55 -07:00
zio_compress.h
Add zstd support to zfs
2020-08-20 10:30:06 -07:00
zio_crypt.h
Rename refcount.h to zfs_refcount.h
2020-07-29 16:35:33 -07:00
zio_impl.h
Add zstd support to zfs
2020-08-20 10:30:06 -07:00
zio_priority.h
Add device rebuild feature
2020-07-03 11:05:50 -07:00
zio.h
include: move SPA_MINBLOCKSHIFT and zio_encrypt to sys/fs/zfs.h
2021-05-29 14:26:32 -07:00
zrlock.h
OpenZFS 6328 - Fix cstyle errors in zfs codebase
2017-01-12 09:42:11 -08:00
zthr.h
Introduce names for ZTHRs
2020-07-29 09:43:33 -07:00
zvol_impl.h
Fix zfs_get_data access to files with wrong generation
2021-03-19 22:53:31 -07:00
zvol.h
async zvol minor node creation interferes with receive
2020-02-03 09:33:14 -08:00