| commit | e800879d50c5a528d40191528557b1bdfbccbd42 | [log] [tgz] |
|---|---|---|
| author | Christoph Lameter <cl@linux-foundation.org> | Sat Oct 03 19:48:23 2009 +0900 |
| committer | Tejun Heo <tj@kernel.org> | Sat Oct 03 19:48:23 2009 +0900 |
| tree | 5cf00a68df5c0b63dcb8c84f00b0ecb48910c0fa | |
| parent | 4dac3e98840f11bb2d8d52fd375150c7c1912117 [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>