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Manage: zero metadata before adding to 'external' array. 

'external' arrays don't support --re-add yet so old metadata is no
value, and 'ddf' gets confusing in mdmon if old metadata is found.
So for now, zero out any old metadata found before adding a spare to
an externally-managed array.

Reported-by: Albert Pauw <albert.pauw@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2012-08-15 09:51:20 +10:00
parent 6d43efb59b
commit 9cf9a1de36
1 changed files with 1 additions and 0 deletions
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Manage.c
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@ -786,6 +786,7 @@ int Manage_add(int fd, int tfd, struct mddev_dev *dv,
return -1;
}
Kill(dv->devname, NULL, 0, -1, 0);
dfd = dev_open(dv->devname, O_RDWR | O_EXCL|O_DIRECT);
if (mdmon_running(tst->container_dev))
tst->update_tail = &tst->updates;