diff options
| author | Colin Cross <ccross@android.com> | 2013-05-06 23:50:16 +0000 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2016-02-16 13:54:21 -0800 |
| commit | 9768f91e0a99dd6788f6b84d22398f49337e755b (patch) | |
| tree | e85f6806f44e5dfb3c73a46420089225897744a7 /fs/ceph | |
| parent | 7f532541c66216406602e8d14f26563b924c8a00 (diff) | |
epoll: use freezable blocking call
Avoid waking up every thread sleeping in an epoll_wait call during
suspend and resume by calling a freezable blocking call. Previous
patches modified the freezer to avoid sending wakeups to threads
that are blocked in freezable blocking calls.
This call was selected to be converted to a freezable call because
it doesn't hold any locks or release any resources when interrupted
that might be needed by another freezing task or a kernel driver
during suspend, and is a common site where idle userspace tasks are
blocked.
Change-Id: I848d08d28c89302fd42bbbdfa76489a474ab27bf
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'fs/ceph')
0 files changed, 0 insertions, 0 deletions