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Date: Tue, 30 Mar 2010 15:55:31 -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: [053/116] tmpfs: mpol=bind:0 dont cause mount error. 2.6.32-stable review patch. If anyone has any objections, please let us know. ------------------ From: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> commit d69b2e63e9172afb4d07c305601b79a55509ac4c upstream. Currently, following mount operation cause mount error. % mount -t tmpfs -ompol=bind:0 none /tmp Because commit 71fe804b6d5 (mempolicy: use struct mempolicy pointer in shmem_sb_info) corrupted MPOL_BIND parse code. This patch restore the needed one. 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 | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2149,9 +2149,13 @@ int mpol_parse_str(char *str, struct mem if (!nodelist) err = 0; goto out; - /* - * case MPOL_BIND: mpol_new() enforces non-empty nodemask. - */ + case MPOL_BIND: + /* + * Insist on a nodelist + */ + if (!nodelist) + goto out; + err = 0; } mode_flags = 0; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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