From: Trond Myklebust trond.myklebust@hammerspace.com
commit d30881f573e565ebb5dbb50b31ed6106b5c81328 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: 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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/nfsd/filecache.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/fs/nfsd/filecache.c +++ b/fs/nfsd/filecache.c @@ -897,6 +897,8 @@ nfsd_file_find_locked(struct inode *inod 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; }