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

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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>
This commit is contained in:
NeilBrown 2009-12-30 15:25:23 +11:00
parent 7fb9dadc91
commit 404e4b43fd
1 changed files with 3 additions and 2 deletions
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5
drivers/md/md.c
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@ -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;