slub: convert SLAB_DEBUG_FREE to SLAB_CONSISTENCY_CHECKS

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SLAB_DEBUG_FREE allows expensive consistency checks at free to be turned
on or off.  Expand its use to be able to turn off all consistency
checks.  This gives a nice speed up if you only want features such as
poisoning or tracing.

Credit to Mathias Krause for the original work which inspired this
series

Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

...

This commit is contained in:

Laura Abbott 2016-03-15 14:55:06 -07:00 • committed by Linus Torvalds

parent 804aa132d3

commit becfda68ab

5 changed files with 66 additions and 41 deletions

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4

Documentation/vm/slub.txt

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2

include/linux/slab.h

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5

mm/slab.h

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100

mm/slub.c

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2

tools/vm/slabinfo.c

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