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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-12 03:52:23 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-12 03:52:23 +0100 |
| commit | 6296e5d3c067df41980a5fd09ad4cc6765f79bb9 (patch) | |
| tree | ac10bc5321ac1d750612c0e0ae53d6c4097c5734 /Documentation | |
| parent | Merge tag 'md-3.3-fixes' of git://neil.brown.name/md (diff) | |
| parent | Merge branch 'slab/urgent' into slab/for-linus (diff) | |
| download | linux-6296e5d3c067df41980a5fd09ad4cc6765f79bb9.tar.xz linux-6296e5d3c067df41980a5fd09ad4cc6765f79bb9.zip | |
Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
* 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
slub: disallow changing cpu_partial from userspace for debug caches
slub: add missed accounting
slub: Extract get_freelist from __slab_alloc
slub: Switch per cpu partial page support off for debugging
slub: fix a possible memleak in __slab_alloc()
slub: fix slub_max_order Documentation
slub: add missed accounting
slab: add taint flag outputting to debug paths.
slub: add taint flag outputting to debug paths
slab: introduce slab_max_order kernel parameter
slab: rename slab_break_gfp_order to slab_max_order
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 6 | ||||
| -rw-r--r-- | Documentation/vm/slub.txt | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index c92b1532f05a..a8d389d72405 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2395,6 +2395,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. slram= [HW,MTD] + slab_max_order= [MM, SLAB] + Determines the maximum allowed order for slabs. + A high setting may cause OOMs due to memory + fragmentation. Defaults to 1 for systems with + more than 32MB of RAM, 0 otherwise. + slub_debug[=options[,slabs]] [MM, SLUB] Enabling slub_debug allows one to determine the culprit if slab objects become corrupted. Enabling diff --git a/Documentation/vm/slub.txt b/Documentation/vm/slub.txt index f464f47bc60d..2acdda9601b0 100644 --- a/Documentation/vm/slub.txt +++ b/Documentation/vm/slub.txt @@ -117,7 +117,7 @@ can be influenced by kernel parameters: slub_min_objects=x (default 4) slub_min_order=x (default 0) -slub_max_order=x (default 1) +slub_max_order=x (default 3 (PAGE_ALLOC_COSTLY_ORDER)) slub_min_objects allows to specify how many objects must at least fit into one slab in order for the allocation order to be acceptable. |