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(parent: c7a58db) | patch
drbd: fix a race stopping the worker thread
authorLars Ellenberg <lars.ellenberg@linbit.com>
Fri, 27 Dec 2013 16:17:25 +0000 (17:17 +0100)
committerPhilipp Reisner <philipp.reisner@linbit.com>
Thu, 10 Jul 2014 16:34:50 +0000 (18:34 +0200)
commita80ca1ae81fc52e304e753f6de4ef248df364f9e
tree3e45ac841a66fe27df95d6253cc88be781dd3bd8tree | snapshot
parentc7a58db4e9dc523b18bbfbc3aa311d8308acc293commit | diff
drbd: fix a race stopping the worker thread

We may implicitly call drbd_send() from inside wait_for_work(),
via maybe_send_barrier().

If the "stop" signal was send just before that, drbd_send() would call
flush_signals(), and we would run an unbounded schedule() afterwards.

Fix: check for thread_state == RUNNING before we schedule()

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
drivers/block/drbd/drbd_worker.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git