The patch titled
tmpfs: mpol=bind:0 don't cause mount error.
has been added to the -mm tree. Its filename is
tmpfs-mpol=bind-0-dont-cause-mount-error.patch
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------------------------------------------------------
Subject: tmpfs: mpol=bind:0 don't cause mount error.
From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
Cc: Ravikiran Thirumalai <kiran@xxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Acked-by: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
Cc: Hugh Dickins <hugh.dickins@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mempolicy.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff -puN mm/mempolicy.c~tmpfs-mpol=bind-0-dont-cause-mount-error mm/mempolicy.c
--- a/mm/mempolicy.c~tmpfs-mpol=bind-0-dont-cause-mount-error
+++ a/mm/mempolicy.c
@@ -2222,9 +2222,13 @@ 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;
_
Patches currently in -mm which might be from kosaki.motohiro@xxxxxxxxxxxxxx are
origin.patch
tmpfs-fix-oops-on-mounts-with-mpol=default.patch
tmpfs-mpol=bind-0-dont-cause-mount-error.patch
tmpfs-handle-mpol_local-mount-option-properly.patch
tmpfs-cleanup-mpol_parse_str.patch
doc-add-the-documentation-for-mpol=local.patch
mm-remove-return-value-of-putback_lru_pages.patch
mempolicy-remove-redundant-code.patch
page-allocator-reduce-fragmentation-in-buddy-allocator-by-adding-buddies-that-are-merging-to-the-tail-of-the-free-lists.patch
page-allocator-reduce-fragmentation-in-buddy-allocator-by-adding-buddies-that-are-merging-to-the-tail-of-the-free-lists-fix.patch
proc-cleanup-remove-unused-assignments.patch
reiser4.patch
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