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| author | Johannes Weiner <hannes@cmpxchg.org> | 2011-08-03 23:21:09 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-08-04 00:25:21 (GMT) |
| commit | 3dab1bce8e840606e76f1bad5a009328e2aa35c7 (patch) | |
| tree | ab2b3a8f159497ec22bb9c98445a214116e86b4e /lib/string.c | |
| parent | f7b9fcbbc3b8593ff7dc587f90c2fe90a2fd1e6f (diff) | |
| download | linux-3dab1bce8e840606e76f1bad5a009328e2aa35c7.tar.xz | |
mm: page_alloc: increase __GFP_BITS_SHIFT to include __GFP_OTHER_NODE
__GFP_OTHER_NODE is used for NUMA allocations on behalf of other nodes.
It's supposed to be passed through from the page allocator to
zone_statistics(), but it never gets there as gfp_allowed_mask is not
wide enough and masks out the flag early in the allocation path.
The result is an accounting glitch where successful NUMA allocations
by-agent are not properly attributed as local.
Increase __GFP_BITS_SHIFT so that it includes __GFP_OTHER_NODE.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/string.c')
0 files changed, 0 insertions, 0 deletions