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| author | Christoph Lameter <clameter@sgi.com> | 2008-04-14 18:11:41 +0200 |
|---|---|---|
| committer | Pekka Enberg <penberg@cs.helsinki.fi> | 2008-04-27 17:28:18 +0200 |
| commit | 06b285dc3d6194abe79ab9dcaaab703d6f75627c (patch) | |
| tree | 4443514e99740054028f6eb035c796a74a540ab1 /mm/page_isolation.c | |
| parent | slub: Drop fallback to page allocator method (diff) | |
| download | linux-06b285dc3d6194abe79ab9dcaaab703d6f75627c.tar.xz linux-06b285dc3d6194abe79ab9dcaaab703d6f75627c.zip | |
slub: Make the order configurable for each slab cache
Makes /sys/kernel/slab/<slabname>/order writable. The allocation
order of a slab cache can then be changed dynamically during runtime.
This can be used to override the objects per slabs value establisheed
with the slub_min_objects setting that was manually specified or
calculated on bootup.
The changes of the slab order can occur while allocate_slab() runs.
Allocate slab needs the order and the number of slab objects that
are both changed by the change of order. Both are put into
a single word (struct kmem_cache_order_objects). They can then
be atomically updated and retrieved.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'mm/page_isolation.c')
0 files changed, 0 insertions, 0 deletions