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authorJoonsoo Kim <iamjoonsoo.kim@lge.com>2014-10-09 15:26:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-09 22:25:51 -0400
commit423c929cbbecc60e9c407f9048e58f5422f7995d (patch)
tree34f427883c02de08d9819db705c91ec418411643 /Documentation/kernel-parameters.txt
parent9163582c3f22cfba90a78749751ac70b127a9167 (diff)
downloadlwn-423c929cbbecc60e9c407f9048e58f5422f7995d.tar.gz
lwn-423c929cbbecc60e9c407f9048e58f5422f7995d.zip
mm/slab_common: commonize slab merge logic
Slab merge is good feature to reduce fragmentation. Now, it is only applied to SLUB, but, it would be good to apply it to SLAB. This patch is preparation step to apply slab merge to SLAB by commonizing slab merge logic. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt14
1 files changed, 9 insertions, 5 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index d9a452e8fb9b..a126a31dde02 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -3158,6 +3158,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
slram= [HW,MTD]
+ slab_nomerge [MM]
+ Disable merging of slabs with similar size. May be
+ necessary if there is some reason to distinguish
+ allocs to different slabs. Debug options disable
+ merging on their own.
+ For more information see Documentation/vm/slub.txt.
+
slab_max_order= [MM, SLAB]
Determines the maximum allowed order for slabs.
A high setting may cause OOMs due to memory
@@ -3193,11 +3200,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
For more information see Documentation/vm/slub.txt.
slub_nomerge [MM, SLUB]
- Disable merging of slabs with similar size. May be
- necessary if there is some reason to distinguish
- allocs to different slabs. Debug options disable
- merging on their own.
- For more information see Documentation/vm/slub.txt.
+ Same with slab_nomerge. This is supported for legacy.
+ See slab_nomerge for more information.
smart2= [HW]
Format: <io1>[,<io2>[,...,<io8>]]