shodanshok bbe8512a93 Ignore zfs_arc_shrinker_limit in direct reclaim mode ... zfs_arc_shrinker_limit (default: 10000) avoids ARC collapse due to excessive memory reclaim. However, when the kernel is in direct reclaim mode (ie: low on memory), limiting ARC reclaim increases OOM risk. This is especially true on system without (or with inadequate) swap. This patch ignores zfs_arc_shrinker_limit when the kernel is in direct reclaim mode, avoiding most OOM. It also restores "echo 3 > /proc/sys/vm/drop_caches" ability to correctly drop (almost) all ARC. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Adam Moss <c@yotes.com> Signed-off-by: Gionatan Danti <g.danti@assyoma.it> Closes #16313		2024-08-21 10:00:33 -07:00
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avl	Suppress Clang Static Analyzer false positive in the AVL tree code.	2023-03-08 13:51:21 -08:00
icp	icp: remove redundant FreeBSD check	2024-05-31 15:13:59 -07:00
lua	LUA: Backport CVE-2020-24370's patch	2024-02-07 11:53:05 -08:00
nvpair	xdr: header cleanup	2024-04-03 15:13:27 -07:00
os	Ignore zfs_arc_shrinker_limit in direct reclaim mode	2024-08-21 10:00:33 -07:00
unicode	Illumos #15286: do_composition() needs sign awareness	2023-01-05 11:16:21 -08:00
zcommon	ddt: add FDT feature and support for legacy and new on-disk formats	2024-08-16 11:58:59 -07:00
zfs	Enable L2 cache of all (MRU+MFU) metadata but MFU data only	2024-08-16 13:34:07 -07:00
zstd	zstd: don't call zstd_mempool_reap if there are no buffers (#16302)	2024-07-15 14:51:37 -07:00
.gitignore	FreeBSD: Ignore symlink to i386 includes	2022-08-02 16:34:23 -07:00
Kbuild.in	ddt: dedup log	2024-08-16 12:03:35 -07:00
Makefile.bsd	ddt: dedup log	2024-08-16 12:03:35 -07:00
Makefile.in	check-zstd-symbols: also ignore __pfx_ symbols	2023-09-18 09:08:41 -07:00