linux-kernel - [067/107] nfsd: link returns nfserr

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Date:	Thu, 07 Jul 2011 17:16:39 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Casey Bodley <cbodley@...i.umich.edu>,
	"J. Bruce Fields" <bfields@...hat.com>
Subject: [067/107] nfsd: link returns nfserr_delay when breaking lease

2.6.39-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Casey Bodley <cbodley@...i.umich.edu>

commit 7d751f6f8c679f51b73d01a1b5269347a929004c upstream.

fix for commit 4795bb37effb7b8fe77e2d2034545d062d3788a8, nfsd: break
lease on unlink, link, and rename

if the LINK operation breaks a delegation, it returns NFS4ERR_NOENT
(which is not a valid error in rfc 5661) instead of NFS4ERR_DELAY.
the return value of nfsd_break_lease() in nfsd_link() must be
converted from host_err to err

Signed-off-by: Casey Bodley <cbodley@...i.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 fs/nfsd/vfs.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1653,8 +1653,10 @@ nfsd_link(struct svc_rqst *rqstp, struct
 	if (!dold->d_inode)
 		goto out_drop_write;
 	host_err = nfsd_break_lease(dold->d_inode);
-	if (host_err)
+	if (host_err) {
+		err = nfserrno(host_err);
 		goto out_drop_write;
+	}
 	host_err = vfs_link(dold, dirp, dnew);
 	if (!host_err) {
 		err = nfserrno(commit_metadata(ffhp));


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