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 <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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@ -733,7 +733,7 @@ void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_seg_s) __mu
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*/
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static void drbd_reconfig_start(struct drbd_conf *mdev)
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{
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wait_event(mdev->state_wait, test_and_set_bit(CONFIG_PENDING, &mdev->flags));
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wait_event(mdev->state_wait, !test_and_set_bit(CONFIG_PENDING, &mdev->flags));
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wait_event(mdev->state_wait, !test_bit(DEVICE_DYING, &mdev->flags));
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drbd_thread_start(&mdev->worker);
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}
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