diff options
| author | Christoph Lameter <cl@linux-foundation.org> | 2009-10-03 19:48:23 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-10-03 19:48:23 +0900 |
| commit | e800879d50c5a528d40191528557b1bdfbccbd42 (patch) | |
| tree | 5cf00a68df5c0b63dcb8c84f00b0ecb48910c0fa /mm/percpu.c | |
| parent | 4dac3e98840f11bb2d8d52fd375150c7c1912117 (diff) | |
| download | linux-3.10-e800879d50c5a528d40191528557b1bdfbccbd42.tar.gz linux-3.10-e800879d50c5a528d40191528557b1bdfbccbd42.tar.bz2 linux-3.10-e800879d50c5a528d40191528557b1bdfbccbd42.zip | |
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>
Diffstat (limited to 'mm/percpu.c')
0 files changed, 0 insertions, 0 deletions