linux-kernel - [055/156] tmpfs: handle MPOL

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Message-Id: <20100330224755.680047370@linux.site>
Date:	Tue, 30 Mar 2010 15:41:29 -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,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Ravikiran Thirumalai <kiran@...lex86.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>,
	Lee Schermerhorn <lee.schermerhorn@...com>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [055/156] tmpfs: handle MPOL_LOCAL mount option properly

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

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

From: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>

commit 12821f5fb942e795f8009ece14bde868893bd811 upstream.

commit 71fe804b6d5 (mempolicy: use struct mempolicy pointer in
shmem_sb_info) added mpol=local mount option.  but its feature is broken
since it was born.  because such code always return 1 (i.e.  mount
failure).

This patch fixes it.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc: Ravikiran Thirumalai <kiran@...lex86.org>
Cc: Christoph Lameter <cl@...ux-foundation.org>
Cc: Mel Gorman <mel@....ul.ie>
Acked-by: Lee Schermerhorn <lee.schermerhorn@...com>
Cc: Hugh Dickins <hugh.dickins@...cali.co.uk>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 mm/mempolicy.c |    1 +
 1 file changed, 1 insertion(+)

--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2186,6 +2186,7 @@ int mpol_parse_str(char *str, struct mem
 		if (nodelist)
 			goto out;
 		mode = MPOL_PREFERRED;
+		err = 0;
 		break;
 	case MPOL_DEFAULT:
 		/*


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