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| author | Joonsoo Kim | 2016-03-17 22:17:49 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2016-03-17 23:09:34 +0100 |
| commit | f48d97f340cbb0c323fa7a7b36bd76a108a9f49f (patch) | |
| tree | 0cc690e92bd4ba6408530b777d3fce63b89e926b /mm/slub.c | |
| parent | tools/vm/page-types.c: support swap entry (diff) | |
| download | kernel-qcow2-linux-f48d97f340cbb0c323fa7a7b36bd76a108a9f49f.tar.gz kernel-qcow2-linux-f48d97f340cbb0c323fa7a7b36bd76a108a9f49f.tar.xz kernel-qcow2-linux-f48d97f340cbb0c323fa7a7b36bd76a108a9f49f.zip | |
mm/vmalloc: query dynamic DEBUG_PAGEALLOC setting
As CONFIG_DEBUG_PAGEALLOC can be enabled/disabled via kernel parameters
we can optimize some cases by checking the enablement state.
This is follow-up work for Christian's Optimize CONFIG_DEBUG_PAGEALLOC:
https://lkml.org/lkml/2016/1/27/194
Remaining work is to make sparc to be aware of this but it looks not
easy for me so I skip that in this series.
This patch (of 5):
We can disable debug_pagealloc processing even if the code is complied
with CONFIG_DEBUG_PAGEALLOC. This patch changes the code to query
whether it is enabled or not in runtime.
[akpm@linux-foundation.org: update comment, per David. Adjust comment to use 80 cols]
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slub.c')
0 files changed, 0 insertions, 0 deletions