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| author |   Trond Myklebust <trond.myklebust@hammerspace.com> | 2021-02-18 21:02:07 -0500 |
|---|---|---|
| committer |   Chuck Lever <chuck.lever@oracle.com> | 2021-03-06 16:41:47 -0500 |
| commit | d30881f573e565ebb5dbb50b31ed6106b5c81328 (patch) | |
| tree | faf91b79b0e23263b6397844d6f746606a9790bd /fs/nfsd | |
| parent | Linux 5.12-rc2 (diff) | |
| download | linux-dev-d30881f573e565ebb5dbb50b31ed6106b5c81328.tar.xz linux-dev-d30881f573e565ebb5dbb50b31ed6106b5c81328.zip | |
nfsd: Don't keep looking up unhashed files in the nfsd file cache
If a file is unhashed, then we're going to reject it anyway and retry,
so make sure we skip it when we're doing the RCU lockless lookup.
This avoids a number of unnecessary nfserr_jukebox returns from
nfsd_file_acquire()
Fixes: 65294c1f2c5e ("nfsd: add a new struct file caching facility to nfsd")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/filecache.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c index 53fcbf79bdca..7629248fdd53 100644 --- a/fs/nfsd/filecache.c +++ b/fs/nfsd/filecache.c @@ -898,6 +898,8 @@ nfsd_file_find_locked(struct inode *inode, unsigned int may_flags, continue; if (!nfsd_match_cred(nf->nf_cred, current_cred())) continue; + if (!test_bit(NFSD_FILE_HASHED, &nf->nf_flags)) + continue; if (nfsd_file_get(nf) != NULL) return nf; } |