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authorTrond Myklebust <trond.myklebust@hammerspace.com>2021-02-19 05:02:07 +0300
committerChuck Lever <chuck.lever@oracle.com>2021-03-07 00:41:47 +0300
commitd30881f573e565ebb5dbb50b31ed6106b5c81328 (patch)
treefaf91b79b0e23263b6397844d6f746606a9790bd /fs/nfsd
parenta38fd8748464831584a19438cbb3082b5a2dab15 (diff)
downloadlinux-d30881f573e565ebb5dbb50b31ed6106b5c81328.tar.xz
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.c2
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;
}