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| author |   Chuck Lever <chuck.lever@oracle.com> | 2022-07-08 14:25:24 -0400 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2022-07-29 20:11:19 -0400 |
| commit | edead3a55804739b2e4af0f35e9c7326264e7b22 (patch) | |
| tree | c2d97040a94dcb96f0fed87b0bd62c9213baa576 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | NFSD: Leave open files out of the filecache LRU (diff) | |
| download | linux-dev-edead3a55804739b2e4af0f35e9c7326264e7b22.tar.xz linux-dev-edead3a55804739b2e4af0f35e9c7326264e7b22.zip | |
NFSD: Fix the filecache LRU shrinker
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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