linux-kernel - [21/27] cifs: fix cifs stable patch cifs-fix-oplock-break-handling-try-2.patch

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Message-Id: <20111207165602.151282904@clark.kroah.org>
Date:	Wed, 07 Dec 2011 08:54:54 -0800
From:	Greg KH <gregkh@...e.de>
To:	<linux-kernel@...r.kernel.org>, <stable@...r.kernel.org>
Cc:	<torvalds@...ux-foundation.org>, <akpm@...ux-foundation.org>,
	<alan@...rguk.ukuu.org.uk>, Pavel Shilovsky <piastryyy@...il.com>,
	Steve French <smfrench@...il.com>,
	linux-cifs <linux-cifs@...r.kernel.org>,
	Steve French <sfrench@...ibm.com>,
	Pavel Shilovsky <piastry@...rsoft.ru>,
	Suresh Jayaraman <sjayaraman@...e.com>
Subject: [21/27] cifs: fix cifs stable patch cifs-fix-oplock-break-handling-try-2.patch

2.6.32-longterm review patch.  If anyone has any objections, please let me know.

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

From: Suresh Jayaraman <sjayaraman@...e.com>

The stable release 2.6.32.32 added the upstream commit
12fed00de963433128b5366a21a55808fab2f756. However, one of the hunks of
the original patch seems missing from the stable backport which can be
found here:
   http://permalink.gmane.org/gmane.linux.kernel.stable/5676

This hunk corresponds to the change in is_valid_oplock_break() at
fs/cifs/misc.c.

This patch backports the missing hunk and is against
linux-2.6.32.y stable kernel.


Cc: Steve French <sfrench@...ibm.com>
Signed-off-by: Pavel Shilovsky <piastry@...rsoft.ru>
Signed-off-by: Suresh Jayaraman <sjayaraman@...e.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 fs/cifs/misc.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -584,6 +584,9 @@ is_valid_oplock_break(struct smb_hdr *bu
 				pCifsInode->clientCanCacheAll = false;
 				if (pSMB->OplockLevel == 0)
 					pCifsInode->clientCanCacheRead = false;
+				else if (pSMB->OplockLevel)
+					pCifsInode->clientCanCacheRead = true;
+
 				rc = slow_work_enqueue(&netfile->oplock_break);
 				if (rc) {
 					cERROR(1, ("failed to enqueue oplock "


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