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drbd: drbd_md_sync before calling user space helpers 

Just in case we have some pending meta data changes to sync, do it
before we call our userland helper, as that may take some time,
or even cause a hard reboot.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
hifive-unleashed-5.1
Lars Ellenberg 2010-07-19 17:41:04 +02:00 committed by Philipp Reisner
parent ee15b03816
commit 1090c056c5
1 changed files with 4 additions and 0 deletions
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4
drivers/block/drbd/drbd_nl.c
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@ -172,6 +172,10 @@ int drbd_khelper(struct drbd_conf *mdev, char *cmd)
put_net_conf(mdev);
}
/* The helper may take some time.
* write out any unsynced meta data changes now */
drbd_md_sync(mdev);
dev_info(DEV, "helper command: %s %s %s\n", usermode_helper, cmd, mb);
drbd_bcast_ev_helper(mdev, cmd);