Commit db07d85e authored Oct 11, 2012 by NeilBrown

md: make sure manual changes to recovery checkpoint are saved.



If you make an array bigger but suppress resync of the new region with
  mdadm --grow /dev/mdX --size=max --assume-clean

then stop the array before anything is written to it, the effect of
the "--assume-clean" is lost and the array will resync the new space
when restarted.
So ensure that we update the metadata in the case.

Reported-by: Sebastian Riemer <sebastian.riemer@profitbricks.com>
Signed-off-by: NeilBrown <neilb@suse.de>

parent 91502f09

drivers/md/md.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -3782,6 +3782,8 @@ resync_start_store(struct mddev mddev, const char buf, size_t len)
		return -EINVAL;

		mddev->recovery_cp = n;
		if (mddev->pers)
		set_bit(MD_CHANGE_CLEAN, &mddev->flags);
		return len;
		}
		static struct md_sysfs_entry md_resync_start =

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