tree 45307bd3a0b7fafc71aea41fc518f42e2e810e76
parent b86ff9820fd5df69295273b9aa68e58786ffc23f
author Arve Hjønnevåg <arve@android.com> 1335900814 +0200
committer Rafael J. Wysocki <rjw@sisk.pl> 1336247441 +0200

epoll: Add a flag, EPOLLWAKEUP, to prevent suspend while epoll events are ready

When an epoll_event, that has the EPOLLWAKEUP flag set, is ready, a
wakeup_source will be active to prevent suspend. This can be used to
handle wakeup events from a driver that support poll, e.g. input, if
that driver wakes up the waitqueue passed to epoll before allowing
suspend.

Signed-off-by: Arve Hjønnevåg <arve@android.com>
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>