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mirror_zfs/include/sys
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shodanshok 2910b5f5ca enforce arc_dnode_limit 
Linux kernel shrinker in the context of null/root memcg does not scan
dentry and inode caches added by a task running in non-root memcg. For
ZFS this means that dnode cache routinely overflows, evicting valuable
meta/data and putting additional memory pressure on the system.

This patch restores zfs_prune_aliases as fallback when the kernel
shrinker does nothing, enabling zfs to actually free dnodes. Moreover,
it (indirectly) calls arc_evict when dnode_size > dnode_limit.

Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gionatan Danti <g.danti@assyoma.it>
Closes #17487
Closes #17542
2025-11-03 13:51:00 -08:00
..
crypto
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
fm
Add slow disk diagnosis to ZED
2024-04-29 13:50:05 -07:00
fs
Add interface to interface spa_get_worst_case_min_alloc() function
2025-10-20 14:56:20 -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
abd_os: break out platform-specific header parts
2024-11-15 10:15:00 -08:00
abd.h
abd_os: break out platform-specific header parts
2024-11-15 10:15:00 -08:00
aggsum.h
More aggsum optimizations
2021-06-07 09:02:47 -07:00
arc_impl.h
enforce arc_dnode_limit
2025-11-03 13:51:00 -08:00
arc.h
Unify arc_prune_async() code
2023-11-08 12:15:41 -08:00
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 16:35:12 -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_impl.h
brt: lift internal definitions into _impl header
2023-11-28 12:56:43 -08:00
brt.h
zdb: include cloned blocks in block statistics
2023-08-02 08:52:40 -07:00
btree.h
btree: Implement faster binary search algorithm
2023-05-26 10:03:12 -07:00
dataset_kstats.h
Update the kstat dataset_name when renaming a zvol
2024-01-08 16:11:39 -08:00
dbuf.h
Pack dmu_buf_impl_t by 16 bytes
2024-11-26 09:55:29 -08:00
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().
2023-08-25 11:58:44 -07:00
dmu_objset.h
Add prefetch property
2024-04-30 10:01:15 -07:00
dmu_recv.h
cred: properly pass and test creds on other threads (#17273)
2025-06-02 16:49:51 -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
Speculative prefetch for reordered requests
2024-04-19 10:13:38 -07:00
dmu.h
ZAP: Massively switch to _by_dnode() interfaces
2024-04-19 10:13:38 -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
Remaining {=> const} char|void *tag
2022-06-29 14:08:59 -07:00
dsl_crypt.h
Allow block cloning across encrypted datasets
2024-01-08 16:11:39 -08:00
dsl_dataset.h
cred: properly pass and test creds on other threads (#17273)
2025-06-02 16:49:51 -07:00
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
cred: properly pass and test creds on other threads (#17273)
2025-06-02 16:49:51 -07:00
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
Fix scn_queue races on very old pools
2024-05-29 08:54:19 -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 build: silence objtool warnings
2025-06-04 17:40:56 -07:00
hkdf.h
Encryption patch follow-up
2017-10-11 16:54:48 -04:00
metaslab_impl.h
Reduce number of metaslab preload taskq threads.
2023-10-07 09:08:20 -07:00
metaslab.h
Remove fastwrite mechanism.
2023-08-25 11:58:44 -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
L2ARC: Relax locking during write
2024-04-19 10:13:38 -07:00
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
sa_impl: fix SA header bitfield docs
2024-11-05 15:43:52 -08:00
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
Add interface to interface spa_get_worst_case_min_alloc() function
2025-10-20 14:56:20 -07:00
spa_log_spacemap.h
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
spa.h
Add interface to interface spa_get_worst_case_min_alloc() function
2025-10-20 14:56:20 -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
2023-11-06 16:46:44 -08:00
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
vdev probe to slow disk can stall mmp write checker
2024-04-30 10:01:15 -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
vdev probe to slow disk can stall mmp write checker
2024-04-30 10:01:15 -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
Workaround UBSAN errors for variable arrays
2023-11-16 14:23:03 -08:00
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
[zfs-2.2.7] Add vdev_check_boot_reserve() to vdev.h
2024-11-15 10:15:01 -08:00
xvattr.h
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
zap_impl.h
ZAP: Massively switch to _by_dnode() interfaces
2024-04-19 10:13:38 -07:00
zap_leaf.h
zap_leaf: make l_hash[] variable length to silence UBSAN
2024-04-29 13:50:05 -07:00
zap.h
ZAP: Massively switch to _by_dnode() interfaces
2024-04-19 10:13:38 -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
cred: properly pass and test creds on other threads (#17273)
2025-06-02 16:49:51 -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
Skip dbuf_evict_one() from dbuf_evict_notify() for reclaim thread
2025-10-16 17:03:47 -07:00
zfs_debug.h
zdb/ztest: send dbgmsg output to stderr
2024-11-15 10:15:01 -08:00
zfs_delay.h
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00
zfs_file.h
zfs_file: rename zfs_file_fallocate to zfs_file_deallocate
2024-11-15 10:15:00 -08:00
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
DMU_BACKUP_FEATURE: indicate that bit 28 and 29 are reserved
2022-09-27 16:55:32 -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
BRT: Fix FICLONE/FICLONERANGE shortened copy
2024-02-06 10:01:15 -08:00
zfs_znode.h
zfs_znode: lift common code to a single shared file
2024-11-15 10:15:01 -08:00
zil_impl.h
ZIL: Improve next log block size prediction
2024-04-19 10:13:38 -07:00
zil.h
zfs_log: add flex array fields to log record structs
2024-11-04 10:34:48 -08:00
zio_checksum.h
Don't emit cksum_{actual_expected} in ereport.fs.zfs.checksum events
2023-07-21 16:35:12 -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
value strings: pretty printers for flags and enums
2024-11-15 10:15:00 -08:00
zio_priority.h
value strings: pretty printers for flags and enums
2024-11-15 10:15:00 -08:00
zio.h
value strings: pretty printers for flags and enums
2024-11-15 10:15:00 -08:00
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
zvol: ensure device minors are properly cleaned up
2024-11-15 10:14:50 -08:00
zvol.h
Replace dead opensolaris.org license link
2022-07-11 14:16:13 -07:00