]> bbs.cooldavid.org Git - net-next-2.6.git/commit
git://bbs.cooldavid.org / net-next-2.6.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 4dac3e9) | patch
this_cpu: Use this_cpu operations in RCU
authorChristoph Lameter <cl@linux-foundation.org>
Sat, 3 Oct 2009 10:48:23 +0000 (19:48 +0900)
committerTejun Heo <tj@kernel.org>
Sat, 3 Oct 2009 10:48:23 +0000 (19:48 +0900)
commite800879d50c5a528d40191528557b1bdfbccbd42
tree5cf00a68df5c0b63dcb8c84f00b0ecb48910c0fatree | snapshot (tar.bz2 tar.gz zip)
parent4dac3e98840f11bb2d8d52fd375150c7c1912117commit | diff
this_cpu: Use this_cpu operations in RCU

RCU does not do dynamic allocations but it increments per cpu variables
a lot. These instructions results in a move to a register and then back
to memory. This patch will make it use the inc/dec instructions on x86
that do not need a register.

Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
kernel/rcutorture.c diff | blob | blame | history
Clone of davem's net-next-2.6 tree