From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Wed, 23 Jul 2014 20:17:40 +0000 (-0400)
Subject: nfsd: nfs4_check_fh - make it actually check the filehandle
X-Git-Tag: v4.14-rc1~7044^2~91
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b07c54a4a3802f28b0ed7b40b4341b170a3ef78f;p=platform%2Fkernel%2Flinux-rpi.git

nfsd: nfs4_check_fh - make it actually check the filehandle

...instead of just checking the inode that corresponds to it.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index ab96718..6ced8d5 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3951,7 +3951,7 @@ laundromat_main(struct work_struct *laundry)
 
 static inline __be32 nfs4_check_fh(struct svc_fh *fhp, struct nfs4_ol_stateid *stp)
 {
-	if (fhp->fh_dentry->d_inode != stp->st_file->fi_inode)
+	if (!nfsd_fh_match(&fhp->fh_handle, &stp->st_file->fi_fhandle))
 		return nfserr_bad_stateid;
 	return nfs_ok;
 }