Commit 404e4b43 authored Dec 30, 2009 by NeilBrown

md: allow a resync that is waiting for other resync to complete, to be aborted.



If two arrays share a device, then they will not both resync at the
same time.  One will wait for the other to complete.
While waiting, the MD_RECOVERY_INTR flag is not checked so a device
failure, which would make the resync pointless, does not cause the
resync to abort, so the failed device cannot be removed (as it cannot
be remove while a resync is happening).

So add a test for MD_RECOVERY_INTR.

Reported-by: Brett Russ <bruss@netezza.com>
Signed-off-by: NeilBrown <neilb@suse.de>

parent 7fb9dadc

drivers/md/md.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -6473,10 +6473,11 @@ void md_do_sync(mddev_t *mddev)
		mddev->curr_resync = 2;

		try_again:
		if (kthread_should_stop()) {
		if (kthread_should_stop())
		set_bit(MD_RECOVERY_INTR, &mddev->recovery);

		if (test_bit(MD_RECOVERY_INTR, &mddev->recovery))
		goto skip;
		}
		for_each_mddev(mddev2, tmp) {
		if (mddev2 == mddev)
		continue;

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