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author | Glauber Costa <glommer@parallels.com> | 2012-08-03 22:51:37 +0400 |
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committer | Pekka Enberg <penberg@kernel.org> | 2012-08-16 09:25:03 +0300 |
commit | d9b7f22623b5fa9cc189581dcdfb2ac605933bf4 (patch) | |
tree | 6287535fbe9d67a743c2c16551042447a1e7d424 /mm/slab.c | |
parent | 0d7614f09c1ebdbaa1599a5aba7593f147bf96ee (diff) | |
download | linux-d9b7f22623b5fa9cc189581dcdfb2ac605933bf4.tar.bz2 |
slub: use free_page instead of put_page for freeing kmalloc allocation
When freeing objects, the slub allocator will most of the time free
empty pages by calling __free_pages(). But high-order kmalloc will be
diposed by means of put_page() instead. It makes no sense to call
put_page() in kernel pages that are provided by the object allocators,
so we shouldn't be doing this ourselves. Aside from the consistency
change, we don't change the flow too much. put_page()'s would call its
dtor function, which is __free_pages. We also already do all of the
Compound page tests ourselves, and the Mlock test we lose don't really
matter.
Signed-off-by: Glauber Costa <glommer@parallels.com>
Acked-by: Christoph Lameter <cl@linux.com>
CC: David Rientjes <rientjes@google.com>
CC: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slab.c')
0 files changed, 0 insertions, 0 deletions