]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 9ae4c86) | patch
slub,rcu: don't assume the size of struct rcu_head
authorLai Jiangshan <laijs@cn.fujitsu.com>
Thu, 10 Mar 2011 07:22:00 +0000 (15:22 +0800)
committerPekka Enberg <penberg@kernel.org>
Fri, 11 Mar 2011 16:06:34 +0000 (18:06 +0200)
commite5e0c87aa06a5dd95bae2bfd41d100c4e2c9c762
tree786966087ccd4fd2c97757ce7b722f728c17ca2btree | snapshot
parent9ae4c86f6ec20aba0953add67cdfcbb385a85646commit | diff
slub,rcu: don't assume the size of struct rcu_head

The size of struct rcu_head may be changed. When it becomes larger,
it will pollute the page array.

We reserve some some bytes for struct rcu_head when a slab
is allocated in this situation.

Changed from V1:
use VM_BUG_ON instead BUG_ON

Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
mm/slub.c diff | blob | history
Linux Kernel Source Tree.