3.13.11-ckt27 -stable review patch. If anyone has any objections, please let me know.
------------------ From: NeilBrown <[email protected]> commit ee5d004fd0591536a061451eba2b187092e9127c upstream. The 'event_work' worker used by dm-raid may still be running when the array is stopped. This can result in an oops. So flush the workqueue on which it is run after detaching and before destroying the device. Reported-by: Heinz Mauelshagen <[email protected]> Signed-off-by: NeilBrown <[email protected]> Fixes: 9d09e663d550 ("dm: raid456 basic support") [kamal: backport to 3.13-stable: context] Signed-off-by: Kamal Mostafa <[email protected]> --- drivers/md/md.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index 8cccbdf..6f71152 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5272,6 +5272,8 @@ EXPORT_SYMBOL_GPL(md_stop_writes); static void __md_stop(struct mddev *mddev) { + /* Ensure ->event_work is done */ + flush_workqueue(md_misc_wq); mddev->ready = 0; mddev->pers->stop(mddev); if (mddev->pers->sync_request && mddev->to_remove == NULL) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
