| commit | 7ded429152e84831f6696585755f318fb351e67f | [log] [tgz] |
|---|---|---|
| author | Nicholas Piggin <npiggin@gmail.com> | Wed Jun 14 23:02:41 2017 +1000 |
| committer | Michael Ellerman <mpe@ellerman.id.au> | Wed Jun 28 13:08:12 2017 +1000 |
| tree | fa7aa9cf3c30c61ef5ec7a01cbc92be38da99815 | |
| parent | 624e46d03576dd4d5667bad9d2ef814135d0075c [diff] |
cpuidle: powerpc: no memory barrier after break from idle A memory barrier is not required after the task wakes up, only if we clear the polling flag before waking. The case where we have work to do is the important one, so optimise for it. Reviewed-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>