From 6c6c7951be7652f86109f2193651b78d90907c0d Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Mon, 16 Nov 2009 15:48:54 +0100 Subject: fix in-kernel configuration serialization this is uncritical, as we still also serialize in userland, but to correctly serialize on the CONFIG_PENDING bit, it must be wait_event(state_wait, \!test_and_set_bit) Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_nl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/block') diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index e2a5875a07b1..436a090b532b 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -733,7 +733,7 @@ void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_seg_s) __mu */ static void drbd_reconfig_start(struct drbd_conf *mdev) { - wait_event(mdev->state_wait, test_and_set_bit(CONFIG_PENDING, &mdev->flags)); + wait_event(mdev->state_wait, !test_and_set_bit(CONFIG_PENDING, &mdev->flags)); wait_event(mdev->state_wait, !test_bit(DEVICE_DYING, &mdev->flags)); drbd_thread_start(&mdev->worker); } -- cgit v1.2.3