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mirror_zfs/include/sys
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Paul Dagnelie 246e5883bb
Implement allocation size ranges and use for gang leaves (#17111) 
When forced to resort to ganging, ZFS currently allocates three child
blocks, each one third of the size of the original. This is true
regardless of whether larger allocations could be made, which would
allow us to have fewer gang leaves. This improves performance when
fragmentation is high enough to require ganging, but not so high that
all the free ranges are only just big enough to hold a third of the
recordsize. This is also useful for improving the behavior of a future
change to allow larger gang headers.

We add the ability for the allocation codepath to allocate a range of
sizes instead of a single fixed size. We then use this to pre-allocate
the DVAs for the gang children. If those allocations fail, we fall back
to the normal write path, which will likely re-gang.

Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Co-authored-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
2025-05-02 15:32:18 -07:00
..
crypto SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
fm SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
fs Add default user/group/project quota properties 2025-04-03 10:35:22 -07:00
lua SPDX: license tags: MIT 2025-03-13 17:56:54 -07:00
sysevent SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zstd SPDX: license tags: BSD-3-Clause 2025-03-13 17:56:50 -07:00
abd_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
abd.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
aggsum.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
arc_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
arc.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
asm_linkage.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
avl_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
avl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bitmap.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bitops.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
blake3.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
blkptr.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bplist.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bpobj.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bptree.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bqueue.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
brt_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
brt.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
btree.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dataset_kstats.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dbuf.h Make ganging redundancy respect redundant_metadata property (#17073) 2025-03-19 15:58:29 -07:00
ddt_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
ddt.h Handle interaction between gang blocks, copies, and FDT. 2025-04-21 11:26:30 -04:00
dmu_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dmu_objset.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dmu_recv.h cred: properly pass and test creds on other threads (#17273) 2025-04-29 16:27:48 -07:00
dmu_redact.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dmu_send.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dmu_traverse.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dmu_tx.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dmu_zfetch.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dmu.h dmu_tx: rename dmu_tx_assign() flags from TXG_* to DMU_TX_* (#17143) 2025-03-18 16:04:22 -07:00
dnode.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_bookmark.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_crypt.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_dataset.h cred: properly pass and test creds on other threads (#17273) 2025-04-29 16:27:48 -07:00
dsl_deadlist.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_deleg.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_destroy.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_dir.h cred: properly pass and test creds on other threads (#17273) 2025-04-29 16:27:48 -07:00
dsl_pool.h Unified allocation throttling (#17020) 2025-03-24 09:25:01 -07:00
dsl_prop.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_scan.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_synctask.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_userhold.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
edonr.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
efi_partition.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
frame.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
hkdf.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
metaslab_impl.h Remove mg_allocators (#17192) 2025-03-28 13:11:10 -07:00
metaslab.h Implement allocation size ranges and use for gang leaves (#17111) 2025-05-02 15:32:18 -07:00
mmp.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
mntent.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
mod.h SPDX: license tags: GPL-2.0-or-later 2025-03-13 17:57:09 -07:00
multilist.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
nvpair_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
nvpair.h nvlist: Add nvlist_snprintf() and zfs_dbgmsg_nvlist() 2025-04-18 09:22:16 -04:00
objlist.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
pathname.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
qat.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
range_tree.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
rrwlock.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
sa_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
sa.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
sha2.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
skein.h SPDX: license tags: LicenseRef-OpenZFS-ThirdParty-PublicDomain 2025-03-13 17:57:31 -07:00
spa_checkpoint.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
spa_checksum.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
spa_impl.h Unified allocation throttling (#17020) 2025-03-24 09:25:01 -07:00
spa_log_spacemap.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
spa.h zed: Ensure spare activation after kernel-initiated device removal 2025-03-28 15:48:38 -04:00
space_map.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
space_reftree.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
sysevent.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
txg_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
txg.h txg: generalise txg_wait_synced_sig() to txg_wait_synced_flags() (#17284) 2025-05-02 15:29:50 -07:00
u8_textprep_data.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
u8_textprep.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
uberblock_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
uberblock.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
uio_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
unique.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
uuid.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_disk.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_draid.h Implement allocation size ranges and use for gang leaves (#17111) 2025-05-02 15:32:18 -07:00
vdev_file.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_impl.h Implement allocation size ranges and use for gang leaves (#17111) 2025-05-02 15:32:18 -07:00
vdev_indirect_births.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_indirect_mapping.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_initialize.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_raidz_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_raidz.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_rebuild.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_removal.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_trim.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev.h Implement allocation size ranges and use for gang leaves (#17111) 2025-05-02 15:32:18 -07:00
xvattr.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zap_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zap_leaf.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zap.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zcp_global.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zcp_iter.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zcp_prop.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zcp_set.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zcp.h cred: properly pass and test creds on other threads (#17273) 2025-04-29 16:27:48 -07:00
zfeature.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_acl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_bootenv.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_chksum.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_context.h cred: properly pass and test creds on other threads (#17273) 2025-04-29 16:27:48 -07:00
zfs_debug.h nvlist: Add nvlist_snprintf() and zfs_dbgmsg_nvlist() 2025-04-18 09:22:16 -04:00
zfs_delay.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_file.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_fuid.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_ioctl_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_ioctl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_onexit.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_project.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_quota.h Show default quotas in zfs userspace tools 2025-04-03 10:36:45 -07:00
zfs_racct.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_ratelimit.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_refcount.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_rlock.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_sa.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_stat.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_sysfs.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_vfsops.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_vnops.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_znode.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zil_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zil.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zio_checksum.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zio_compress.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zio_crypt.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zio_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zio.h Implement allocation size ranges and use for gang leaves (#17111) 2025-05-02 15:32:18 -07:00
zrlock.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zthr.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zvol_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zvol.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00