diff options
| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-10-27 19:33:43 +0200 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2010-12-14 23:40:06 +0100 |
| commit | 6b4100ddcb000aab7cbb86a66361989d1e87a1c3 (patch) | |
| tree | 204730ade272e45ed1874b6897be193991b893a8 /mm | |
| parent | cfa9f4a158d8c5fc0033798491bfcc9b8fe2619e (diff) | |
numa: fix slab_node(MPOL_BIND)
commit 800416f799e0723635ac2d720ad4449917a1481c upstream.
When a node contains only HighMem memory, slab_node(MPOL_BIND)
dereferences a NULL pointer.
[ This code seems to go back all the way to commit 19770b32609b: "mm:
filter based on a nodemask as well as a gfp_mask". Which was back in
April 2008, and it got merged into 2.6.26. - Linus ]
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Christoph Lameter <cl@linux.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mempolicy.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 5bc0a96beb51..407cda2d753f 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1576,7 +1576,7 @@ unsigned slab_node(struct mempolicy *policy) (void)first_zones_zonelist(zonelist, highest_zoneidx, &policy->v.nodes, &zone); - return zone->node; + return zone ? zone->node : numa_node_id(); } default: |