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(parent: c4ea41b) | patch
binder: Use wake up hint for synchronous transactions.
authorRiley Andrews <riandrews@google.com>
Thu, 29 Jun 2017 19:01:37 +0000 (12:01 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 17 Jul 2017 12:44:19 +0000 (14:44 +0200)
commit00b40d613352c623aaae88a44e5ded7c912909d7
treeeba0887b952a02669f503511be81d05b829d8e9atree | snapshot (tar.gz zip)
parentc4ea41ba195d01c9af66fb28711a16cc97caa9c5commit | diff
binder: Use wake up hint for synchronous transactions.

Use wake_up_interruptible_sync() to hint to the scheduler binder
transactions are synchronous wakeups. Disable preemption while waking
to avoid ping-ponging on the binder lock.

Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Omprakash Dhyade <odhyade@codeaurora.org>
Cc: stable <stable@vger.kernel.org> # 4.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/android/binder.c diff | blob | blame | history