shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-05 02:21:52 +09:00
Code Issues Packages Projects Releases Wiki Activity

nfsd: Don't keep looking up unhashed files in the nfsd file cache

Browse Source 
commit d30881f573 upstream.

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: 65294c1f2c ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Trond Myklebust
2021-02-18 21:02:07 -05:00
committed by Greg Kroah-Hartman
parent 628f39a57a
commit 5ea0aa29ad
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/nfsd/filecache.c
View File

@@ -897,6 +897,8 @@ 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;
}