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authorArve Hjønnevåg <arve@android.com>2012-05-01 21:33:34 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2012-05-05 21:50:41 +0200
commit4d7e30d98939a0340022ccd49325a3d70f7e0238 (patch)
tree45307bd3a0b7fafc71aea41fc518f42e2e810e76 /lib/dynamic_queue_limits.c
parentPM / Sleep: Add user space interface for manipulating wakeup sources, v3 (diff)
downloadlinux-4d7e30d98939a0340022ccd49325a3d70f7e0238.tar.xz
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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>
Diffstat (limited to 'lib/dynamic_queue_limits.c')
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