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| author | Colin Cross <ccross@android.com> | 2013-05-06 23:50:17 +0000 |
|---|---|---|
| committer | Arve Hjønnevåg <arve@android.com> | 2013-07-01 15:45:28 -0700 |
| commit | 947377f9be3f730f91a27d068225ba00db760ccd (patch) | |
| tree | 797341c7e1c7db99a0172117ffa746d4f1d4820b /kernel | |
| parent | 8f02557bee13b54d4e3f465a40b065d7454512a7 (diff) | |
| download | olio-linux-3.10-947377f9be3f730f91a27d068225ba00db760ccd.tar.xz olio-linux-3.10-947377f9be3f730f91a27d068225ba00db760ccd.zip | |
select: use freezable blocking call
Avoid waking up every thread sleeping in a select 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: I0d7565ec0b6bc5d44cb55f958589c56e6bd16348
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 'kernel')
0 files changed, 0 insertions, 0 deletions