mirror_zfs/include/sys
Alexander Motin c3773de168
ZIL: Cleanup sync and commit handling
ZVOL:
 - Mark all ZVOL ZIL transactions as sync.  Since ZVOLs have only
one object, it makes no sense to maintain async queue and on each
commit merge it into sync. Single sync queue is just cheaper, while
it changes nothing until actual commit request arrives.
 - Remove zsd_sync_cnt and the zil_async_to_sync() calls since we
are no longer switching between sync and async queues.

ZFS:
 - Mark write transactions as sync based only on number of sync
opens (z_sync_cnt).  We can not randomly jump between sync and
async unless we want data corruptions due to writes reordering.
 - When file first opened with O_SYNC (z_sync_cnt incremented to 1)
call zil_async_to_sync() for it to preserve correct ordering between
past and future writes.
 - Drop zfs_fsyncer_key logic.  Looks like it was an optimization
for workloads heavily intermixing async writes with tons of fsyncs.
But first it was broken 8 years ago due to Linux tsd implementation
not allowing data storage between syscalls, and second, I doubt it
is safe to switch from async to sync so often and without calling
zil_async_to_sync().

 - Rename sync argument of *_log_write() into commit, now only
signalling caller's intent to call zil_commit() soon after.  It
allows WR_COPIED optimizations without extra other meanings.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Wilson <george.wilson@delphix.com>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15366
2023-10-30 14:51:56 -07:00
..
crypto Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
fm Don't emit cksum_{actual_expected} in ereport.fs.zfs.checksum events 2023-07-21 11:49:26 -07:00
fs Add prefetch property 2023-10-24 11:00:07 -07:00
lua autoconf: single-step includes 2022-05-10 10:18:51 -07:00
sysevent Teach zpool scrub to scrub only blocks in error log 2023-05-18 11:59:42 -07:00
zstd Unbreak zstd build on sparc64 2022-05-25 09:18:49 -07:00
abd_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
abd.h Use __attribute__((malloc)) on memory allocation functions 2023-05-26 15:47:52 -07:00
aggsum.h More aggsum optimizations 2021-06-07 09:02:47 -07:00
arc_impl.h ARC: Remove b_bufcnt/b_ebufcnt from ARC headers 2023-10-06 08:56:17 -07:00
arc.h Remove ARC/ZIO physdone callbacks. 2023-06-15 10:49:03 -07:00
asm_linkage.h Unify Assembler files between Linux and Windows 2023-01-17 11:09:19 -08:00
avl_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
avl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
bitmap.h Replace dead opensolaris.org license links 2023-03-14 14:44:01 -07:00
bitops.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
blake3.h Update BLAKE3 for using the new impl handling 2023-03-02 13:52:27 -08:00
blkptr.h OpenZFS 8067 - zdb should be able to dump literal embedded block pointer 2017-07-07 11:28:01 -07:00
bplist.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
bpobj.h Add explicit prefetches to bpobj_iterate(). 2023-07-21 11:50:48 -07:00
bptree.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
bqueue.h Batch enqueue/dequeue for bqueue 2023-01-10 13:39:22 -08:00
brt.h zdb: include cloned blocks in block statistics 2023-08-01 08:56:30 -07:00
btree.h btree: Implement faster binary search algorithm 2023-05-26 10:03:12 -07:00
dataset_kstats.h Add support for per dataset zil stats and use wmsum counters 2022-07-20 17:14:06 -07:00
dbuf.h Additional block cloning fixes. 2023-05-11 16:06:36 -07:00
ddt.h Implementation of block cloning for ZFS 2023-03-10 11:59:53 -08:00
dmu_impl.h ZIL: Avoid dbuf_read() before dmu_sync(). 2023-08-11 09:04:08 -07:00
dmu_objset.h Add prefetch property 2023-10-24 11:00:07 -07:00
dmu_recv.h nvpair: Constify string functions 2023-03-14 15:25:50 -07:00
dmu_redact.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dmu_send.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dmu_traverse.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dmu_tx.h Add dmu_tx_hold_append() interface 2023-05-09 09:03:10 -07:00
dmu_zfetch.h Adjust prefetch parameters. 2023-07-21 11:51:47 -07:00
dmu.h ZIL: Avoid dbuf_read() before dmu_sync(). 2023-08-11 09:04:08 -07:00
dnode.h Linux 6.3 compat: Fix memcpy "detected field-spanning write" error 2023-04-13 09:12:03 -07:00
dsl_bookmark.h Increase limit of redaction list by using spill block 2023-08-26 11:34:43 -07:00
dsl_crypt.h Fix zpool status in case of unloaded keys 2022-08-22 17:42:01 -07:00
dsl_dataset.h Revert zfeature_active() to static 2023-02-28 14:03:52 -08:00
dsl_deadlist.h Cleanup: 64-bit kernel module parameters should use fixed width types 2022-10-13 10:03:29 -07:00
dsl_deleg.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_destroy.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_dir.h Cleanup ->dd_space_towrite should be unsigned 2023-01-20 11:10:15 -08:00
dsl_pool.h Cleanup: 64-bit kernel module parameters should use fixed width types 2022-10-13 10:03:29 -07:00
dsl_prop.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_scan.h Do not report bytes skipped by scan as issued. 2023-06-30 08:47:13 -07:00
dsl_synctask.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_userhold.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
edonr.h Remove unused constant EdonR256_BLOCK_BITSIZE 2023-03-22 08:39:48 -07:00
efi_partition.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -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
metaslab_impl.h Reduce number of metaslab preload taskq threads. 2023-10-06 09:04:00 -07:00
metaslab.h Selectable block allocators 2023-09-01 18:00:30 -07:00
mmp.h Cleanup: 64-bit kernel module parameters should use fixed width types 2022-10-13 10:03:29 -07:00
mntent.h Expose ZFS dataset case sensitivity setting via sb_opts 2022-07-14 10:38:16 -07:00
mod.h linux: module: weld all but spl.ko into zfs.ko 2022-04-20 13:28:24 -07:00
multilist.h Re-embed multilist_t storage 2021-06-10 10:42:31 -06:00
nvpair_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
nvpair.h nvpair: Use flexible array member for nvpair name strings 2023-03-14 15:25:55 -07:00
objlist.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
pathname.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
qat.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
range_tree.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
rrwlock.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
sa_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
sa.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
sha2.h Add generic implementation handling and SHA2 impl 2023-03-02 13:52:21 -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_checkpoint.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
spa_checksum.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
spa_impl.h Reduce number of metaslab preload taskq threads. 2023-10-06 09:04:00 -07:00
spa_log_spacemap.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
spa.h Add mutex_enter_interruptible() for interruptible sleeping IOCTLs 2023-10-26 09:17:40 -07:00
space_map.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
space_reftree.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
sysevent.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
txg_impl.h Properly pad struct tx_cpu to cache line 2023-10-20 11:54:05 -07:00
txg.h Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
u8_textprep_data.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
u8_textprep.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
uberblock_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
uberblock.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
uio_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
unique.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
uuid.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_disk.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_draid.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_file.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_impl.h Remove fastwrite mechanism. 2023-07-28 13:30:33 -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 the ability to uninitialize 2023-05-18 10:02:20 -07:00
vdev_raidz_impl.h Cleanup Raid-Z Typo fixes 2022-09-06 09:43:21 -07:00
vdev_raidz.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_rebuild.h Do not report bytes skipped by scan as issued. 2023-06-30 08:47:13 -07:00
vdev_removal.h Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
vdev_trim.h Fix short-lived txg caused by autotrim 2023-03-28 08:43:41 -07:00
vdev.h Another set of vdev queue optimizations. 2023-06-27 09:09:48 -07:00
xvattr.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zap_impl.h Optimize microzaps 2022-10-20 11:57:15 -07:00
zap_leaf.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zap.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zcp_global.h OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
zcp_iter.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
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 Cleanup: 64-bit kernel module parameters should use fixed width types 2022-10-13 10:03:29 -07:00
zfeature.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_acl.h Linux 6.3 compat: idmapped mount API changes 2023-04-10 14:15:36 -07:00
zfs_bootenv.h zfs label bootenv should store data as nvlist 2020-09-15 15:42:27 -07:00
zfs_chksum.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_context.h Add mutex_enter_interruptible() for interruptible sleeping IOCTLs 2023-10-26 09:17:40 -07:00
zfs_debug.h Implementation of block cloning for ZFS 2023-03-10 11:59:53 -08:00
zfs_delay.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_file.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_fuid.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_impl.h Add generic implementation handling and SHA2 impl 2023-03-02 13:52:21 -08:00
zfs_ioctl_impl.h Cleanup: 64-bit kernel module parameters should use fixed width types 2022-10-13 10:03:29 -07:00
zfs_ioctl.h ZIL: Cleanup sync and commit handling 2023-10-30 14:51:56 -07:00
zfs_onexit.h zfs_onexit_add_cb: make action_handle point to a uintptr_t 2022-11-03 09:52:12 -07:00
zfs_project.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_quota.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_racct.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_ratelimit.h Change checksum & IO delay ratelimit values 2018-03-04 17:34:51 -08:00
zfs_refcount.h Switch refcount tracking from lists to AVL-trees. 2023-06-14 08:02:27 -07:00
zfs_rlock.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_sa.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_stat.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_sysfs.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_vfsops.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_vnops.h Implementation of block cloning for ZFS 2023-03-10 11:59:53 -08:00
zfs_znode.h ZIL: Cleanup sync and commit handling 2023-10-30 14:51:56 -07:00
zil_impl.h ZIL: Detect single-threaded workloads 2023-10-24 14:35:25 -07:00
zil.h zil: Add some more statistics. 2023-05-25 13:51:53 -07:00
zio_checksum.h Don't emit cksum_{actual_expected} in ereport.fs.zfs.checksum events 2023-07-21 11:49:26 -07:00
zio_compress.h Skip memory allocation when compressing holes 2023-02-27 14:41:02 -08:00
zio_crypt.h Enable -Wwrite-strings 2022-06-29 14:08:54 -07:00
zio_impl.h ZIO: Remove READY pipeline stage from root ZIOs 2023-10-25 15:22:25 -07:00
zio_priority.h Add device rebuild feature 2020-07-03 11:05:50 -07:00
zio.h Remove fastwrite mechanism. 2023-07-28 13:30:33 -07:00
zrlock.h Pack zrlock_t by 8 bytes 2023-01-05 09:31:55 -08:00
zthr.h Avoid memory allocations in the ARC eviction thread 2022-01-21 10:28:13 -08:00
zvol_impl.h ZIL: Cleanup sync and commit handling 2023-10-30 14:51:56 -07:00
zvol.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00