tree fa7aa9cf3c30c61ef5ec7a01cbc92be38da99815
parent 624e46d03576dd4d5667bad9d2ef814135d0075c
author Nicholas Piggin <npiggin@gmail.com> 1497445361 +1000
committer Michael Ellerman <mpe@ellerman.id.au> 1498619292 +1000

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>