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Commit c07b70ad authored by NeilBrown's avatar NeilBrown
Browse files

md: adjust resync_min usefully when resync aborts. 



When a 'check' or 'repair' finished we should clear resync_min
so that a future check/repair will cover the whole array (by default).
However if it is interrupted, we should update resync_min to
where we got up to, so that when the check/repair continues it
just does the remainder of the array.

Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 7820f9e1

drivers/md/md.c

+7 −3
Original line number Diff line number Diff line
@@ -6524,11 +6524,15 @@ void md_do_sync(mddev_t *mddev) 
	set_bit(MD_CHANGE_DEVS, &mddev->flags);



 skip:

	if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {

		/* We completed so min/max setting can be forgotten if used. */

		if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))

			mddev->resync_min = 0;

		mddev->resync_max = MaxSector;

	} else if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))

		mddev->resync_min = mddev->curr_resync_completed;

	mddev->curr_resync = 0;

	mddev->curr_resync_completed = 0;

	if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery))

		/* We completed so max setting can be forgotten. */

		mddev->resync_max = MaxSector;

	sysfs_notify(&mddev->kobj, NULL, "sync_completed");

	wake_up(&resync_wait);

	set_bit(MD_RECOVERY_DONE, &mddev->recovery);