Commit d69b2e63 authored by KOSAKI Motohiro's avatar KOSAKI Motohiro Committed by Linus Torvalds

tmpfs: mpol=bind:0 don't cause mount error.

Currently, following mount operation cause mount error.

% mount -t tmpfs -ompol=bind:0 none /tmp

Because commit 71fe804b (mempolicy: use struct mempolicy pointer in
shmem_sb_info) corrupted MPOL_BIND parse code.

This patch restore the needed one.
Signed-off-by: default avatarKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Ravikiran Thirumalai <kiran@scalex86.org>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Acked-by: default avatarLee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: <stable@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 413b43de
......@@ -2222,9 +2222,13 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
if (!nodelist)
err = 0;
goto out;
case MPOL_BIND:
/*
* case MPOL_BIND: mpol_new() enforces non-empty nodemask.
* Insist on a nodelist
*/
if (!nodelist)
goto out;
err = 0;
}
mode_flags = 0;
......
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