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authorVladimir Davydov <vdavydov@virtuozzo.com>2016-01-14 15:18:08 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-14 16:00:49 -0800
commit20b5c30398639b458371c228abfda829854b61c5 (patch)
tree366edd361af32ead1f7be2de21e3da5c435d8636 /mm/kmemleak.c
parentb2a209ffa605994cbe3c259c8584ba1576d3310c (diff)
downloadop-kernel-dev-20b5c30398639b458371c228abfda829854b61c5.zip
op-kernel-dev-20b5c30398639b458371c228abfda829854b61c5.tar.gz
Revert "gfp: add __GFP_NOACCOUNT"
This reverts commit 8f4fc071b192 ("gfp: add __GFP_NOACCOUNT"). Black-list kmem accounting policy (aka __GFP_NOACCOUNT) turned out to be fragile and difficult to maintain, because there seem to be many more allocations that should not be accounted than those that should be. Besides, false accounting an allocation might result in much worse consequences than not accounting at all, namely increased memory consumption due to pinned dead kmem caches. So it was decided to switch to the white-list policy. This patch reverts bits introducing the black-list policy. The white-list policy will be introduced later in the series. Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: Greg Thelen <gthelen@google.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/kmemleak.c')
-rw-r--r--mm/kmemleak.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 19423a4..25c0ad3 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -122,8 +122,7 @@
#define BYTES_PER_POINTER sizeof(void *)
/* GFP bitmask for kmemleak internal allocations */
-#define gfp_kmemleak_mask(gfp) (((gfp) & (GFP_KERNEL | GFP_ATOMIC | \
- __GFP_NOACCOUNT)) | \
+#define gfp_kmemleak_mask(gfp) (((gfp) & (GFP_KERNEL | GFP_ATOMIC)) | \
__GFP_NORETRY | __GFP_NOMEMALLOC | \
__GFP_NOWARN)
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