• Viresh Kumar's avatar
    block: queue work on power efficient wq · 695588f9
    Viresh Kumar authored
    Block layer uses workqueues for multiple purposes. There is no real dependency
    of scheduling these on the cpu which scheduled them.
    On a idle system, it is observed that and idle cpu wakes up many times just to
    service this work. It would be better if we can schedule it on a cpu which the
    scheduler believes to be the most appropriate one.
    This patch replaces normal workqueues with power efficient versions.
    Cc: Jens Axboe <axboe@kernel.dk>
    Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
    Signed-off-by: default avatarTejun Heo <tj@kernel.org>