Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.5 191/367] nfsd: fix filecache lookup | Date | Mon, 10 Feb 2020 04:31:44 -0800 |
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From: Trond Myklebust <trondmy@gmail.com>
commit 28c7d86bb6172ffbb1a1237c6388e77f9fe5f181 upstream.
If the lookup keeps finding a nfsd_file with an unhashed open file, then retry once only.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: stable@vger.kernel.org Fixes: 65294c1f2c5e "nfsd: add a new struct file caching facility to nfsd" Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/nfsd/filecache.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/fs/nfsd/filecache.c +++ b/fs/nfsd/filecache.c @@ -789,6 +789,7 @@ nfsd_file_acquire(struct svc_rqst *rqstp struct nfsd_file *nf, *new; struct inode *inode; unsigned int hashval; + bool retry = true; /* FIXME: skip this if fh_dentry is already set? */ status = fh_verify(rqstp, fhp, S_IFREG, @@ -824,6 +825,11 @@ wait_for_construction: /* Did construction of this file fail? */ if (!test_bit(NFSD_FILE_HASHED, &nf->nf_flags)) { + if (!retry) { + status = nfserr_jukebox; + goto out; + } + retry = false; nfsd_file_put_noref(nf); goto retry; }
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