linux-kernel - [62/66] Fixed Regression in NFS Direct I/O path

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Date:	Fri, 19 Nov 2010 14:01:33 -0800
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,
	Steve Dickson <steved@...hat.com>,
	Trond Myklebust <Trond.Myklebust@...app.com>
Subject: [62/66] Fixed Regression in NFS Direct I/O path

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

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

From: Steve Dickson <steved@...hat.com>

commit 568a810d7edd58bd505222dd1c7e48895532290b upstream.

A typo, introduced by commit f11ac8db, in the nfs_direct_write()
routine causes writes with O_DIRECT set to fail with a ENOMEM error.

Found-by: Jeff Layton <jlayton@...hat.com>
Signed-off-by: Steve Dickson <steved@...hat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 fs/nfs/direct.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -873,7 +873,7 @@ static ssize_t nfs_direct_write(struct k
 	dreq->inode = inode;
 	dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
 	dreq->l_ctx = nfs_get_lock_context(dreq->ctx);
-	if (dreq->l_ctx != NULL)
+	if (dreq->l_ctx == NULL)
 		goto out_release;
 	if (!is_sync_kiocb(iocb))
 		dreq->iocb = iocb;


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