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authorColin Cross <ccross@android.com>2013-05-07 01:50:15 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-05-12 14:16:22 +0200
commite2610b268bb74d24866a9578e78d8c3de90ed596 (patch)
tree0daf0d50ba6c52166d79aa83dbd50bd6479f15bf /fs/eventpoll.c
parentfreezer: add new freezable helpers using freezer_do_not_count() (diff)
downloadlinux-e2610b268bb74d24866a9578e78d8c3de90ed596.tar.xz
linux-e2610b268bb74d24866a9578e78d8c3de90ed596.zip
binder: use freezable blocking calls
Avoid waking up every thread sleeping in a binder 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>
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