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author | Colin Cross <ccross@android.com> | 2013-05-07 01:50:21 +0200 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-05-12 14:16:23 +0200 |
commit | 2b15af6f953012aac49984ead3f8ec744d941540 (patch) | |
tree | 385fa2cf0c69634c55e1753fe77138021fc6f396 /kernel/exit.c | |
parent | sigtimedwait: use freezable blocking call (diff) | |
download | linux-2b15af6f953012aac49984ead3f8ec744d941540.tar.xz linux-2b15af6f953012aac49984ead3f8ec744d941540.zip |
af_unix: use freezable blocking calls in read
Avoid waking up every thread sleeping in read call on an AF_UNIX
socket 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 'kernel/exit.c')
0 files changed, 0 insertions, 0 deletions