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md: Don't allow slot_store while resync/recovery is happening.

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Activating a spare in an array while resync/recovery is already
happening can lead the that spare being marked in-sync when it isn't
really.
So don't allow the 'slot' to be set (this activating the device)
while resync/recovery is happening.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2011-02-02 11:57:13 +11:00
parent 7281f8129c
commit c6751b2bde
1 changed files with 3 additions and 0 deletions
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3
drivers/md/md.c
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@ -2463,6 +2463,9 @@ slot_store(mdk_rdev_t *rdev, const char *buf, size_t len)
if (rdev->raid_disk != -1)
return -EBUSY;
if (test_bit(MD_RECOVERY_RUNNING, &rdev->mddev->recovery))
return -EBUSY;
if (rdev->mddev->pers->hot_add_disk == NULL)
return -EINVAL;