mm/slab_common.c: check kmem_create_cache flags are common
authorThomas Garnier <thgarnie@google.com>
Tue, 13 Dec 2016 00:41:38 +0000 (16:41 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 13 Dec 2016 02:55:06 +0000 (18:55 -0800)
commite70954fd6d4b469517fd906ef1c33310e90ef9f0
tree478865ae45175903b641683eae5ca8991bd81fa3
parent84582c8ab9479ffa4532afa95ab8d8f96b5478dc
mm/slab_common.c: check kmem_create_cache flags are common

Verify that kmem_create_cache flags are not allocator specific.  It is
done before removing flags that are not available with the current
configuration.

The current kmem_cache_create removes incorrect flags but do not
validate the callers are using them right.  This change will ensure that
callers are not trying to create caches with flags that won't be used
because allocator specific.

Link: http://lkml.kernel.org/r/1478553075-120242-2-git-send-email-thgarnie@google.com
Signed-off-by: Thomas Garnier <thgarnie@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>
mm/slab.h
mm/slab_common.c