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author | Colin Cross <ccross@android.com> | 2013-05-07 01:50:16 +0200 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-05-12 14:16:22 +0200 |
commit | 1c441e921201d523b5a6036aea22b0b426bf1af2 (patch) | |
tree | 3fbf6842e6c22f8f4af04b4e86401e442b9b2fbd /mm | |
parent | binder: use freezable blocking calls (diff) | |
download | linux-1c441e921201d523b5a6036aea22b0b426bf1af2.tar.xz linux-1c441e921201d523b5a6036aea22b0b426bf1af2.zip |
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.
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 'mm')
0 files changed, 0 insertions, 0 deletions