5.10-stable review patch. If anyone has any objections, please let me know.
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From: Trond Myklebust trond.myklebust@hammerspace.com
[ Upstream commit e221c45da3770962418fb30c27d941bbc70d595a ]
The 'NFS error' NFSERR_OPNOTSUPP is not described by any of the official NFS related RFCs, but appears to have snuck into some older .x files for NFSv2. Either way, it is not in RFC1094, RFC1813 or any of the NFSv4 RFCs, so should not be returned by the knfsd server, and particularly not by the "LOOKUP" operation.
Instead, let's return NFSERR_STALE, which is more appropriate if the filesystem encodes the filehandle as FILEID_INVALID.
Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfsd/nfsfh.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c index db8d62632a5be..ae3323e0708dd 100644 --- a/fs/nfsd/nfsfh.c +++ b/fs/nfsd/nfsfh.c @@ -573,7 +573,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry, _fh_update(fhp, exp, dentry); if (fhp->fh_handle.fh_fileid_type == FILEID_INVALID) { fh_put(fhp); - return nfserr_opnotsupp; + return nfserr_stale; }
return 0; @@ -599,7 +599,7 @@ fh_update(struct svc_fh *fhp)
_fh_update(fhp, fhp->fh_export, dentry); if (fhp->fh_handle.fh_fileid_type == FILEID_INVALID) - return nfserr_opnotsupp; + return nfserr_stale; return 0; out_bad: printk(KERN_ERR "fh_update: fh not verified!\n");