NFSD: Fix the filecache LRU shrinker

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Without LRU item rotation, the shrinker visits only a few items on
the end of the LRU list, and those would always be long-term OPEN
files for NFSv4 workloads. That makes the filecache shrinker
completely ineffective.

Adopt the same strategy as the inode LRU by using LRU_ROTATE.

Suggested-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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Chuck Lever 2022-07-08 14:25:24 -04:00

parent 4a0e73e635

commit edead3a558

1 changed files with 3 additions and 2 deletions

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fs/nfsd/filecache.c

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