bcachefs: bch2_btree_cache_scan() improvement

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We're still seeing OOM issues caused by the btree node cache shrinker
not sufficiently freeing memory: thus, this patch changes the shrinker
to not exit if __GFP_FS was not supplied.

Instead, tweak btree node memory allocation so that we never invoke
memory reclaim while holding the btree node cache lock.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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This commit is contained in:

Kent Overstreet 2022-09-25 14:49:14 -04:00

parent c6cf49a95a

commit c36ff038fd

1 changed files with 40 additions and 44 deletions

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fs/bcachefs/btree_cache.c

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