releases/2.6.27.46/tmpfs-handle-mpol_local-mount-option-properly.patch

   1 From 12821f5fb942e795f8009ece14bde868893bd811 Mon Sep 17 00:00:00 2001
   2 From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
   3 Date: Tue, 23 Mar 2010 13:35:31 -0700
   4 Subject: tmpfs: handle MPOL_LOCAL mount option properly
   5
   6 From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
   7
   8 commit 12821f5fb942e795f8009ece14bde868893bd811 upstream.
   9
  10 commit 71fe804b6d5 (mempolicy: use struct mempolicy pointer in
  11 shmem_sb_info) added mpol=local mount option.  but its feature is broken
  12 since it was born.  because such code always return 1 (i.e.  mount
  13 failure).
  14
  15 This patch fixes it.
  16
  17 Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
  18 Cc: Ravikiran Thirumalai <kiran@scalex86.org>
  19 Cc: Christoph Lameter <cl@linux-foundation.org>
  20 Cc: Mel Gorman <mel@csn.ul.ie>
  21 Acked-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
  22 Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
  23 Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
  24 Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  25 Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  26
  27 ---
  28  mm/mempolicy.c |    1 +
  29  1 file changed, 1 insertion(+)
  30
  31 --- a/mm/mempolicy.c
  32 +++ b/mm/mempolicy.c
  33 @@ -2048,6 +2048,7 @@ int mpol_parse_str(char *str, struct mem
  34                 if (nodelist)
  35                         goto out;
  36                 mode = MPOL_PREFERRED;
  37 +               err = 0;
  38                 break;
  39         case MPOL_DEFAULT:
  40                 /*