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| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2010-03-23 13:35:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-24 16:31:21 -0700 |
| commit | d69b2e63e9172afb4d07c305601b79a55509ac4c (patch) | |
| tree | b1abae07eaa3427dedca17427100664cdccf8a38 | |
| parent | 413b43deab8377819aba1dbad2abf0c15d59b491 (diff) | |
| download | linux-3.10-d69b2e63e9172afb4d07c305601b79a55509ac4c.tar.gz linux-3.10-d69b2e63e9172afb4d07c305601b79a55509ac4c.tar.bz2 linux-3.10-d69b2e63e9172afb4d07c305601b79a55509ac4c.zip | |
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 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@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: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/mempolicy.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 745ce90308a..10db44f9574 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -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: mpol_new() enforces non-empty nodemask. - */ + case MPOL_BIND: + /* + * Insist on a nodelist + */ + if (!nodelist) + goto out; + err = 0; } mode_flags = 0; |