tree b52678a354596cec0c27593a1ab55833298f379f
parent 7bd7b0e639afb847a14ca994795fb5c64d2a7bf4
author Martijn Coenen <maco@google.com> 1498762926 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1500295704 +0200

binder: protect transaction_stack with inner lock.

This makes future changes to priority inheritance
easier, since we want to be able to look at a thread's
transaction stack when selecting a thread to inherit
priority for.

It also allows us to take just a single lock in a
few paths, where we used to take two in succession.

Signed-off-by: Martijn Coenen <maco@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>