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md: support re-add of recovering devices.

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We currently only allow a device to be re-added if it appear to be
in-sync.  This is overly restrictive as it may be desirable to re-add
a device that is in the middle of recovery.

So remove the test for "InSync" - the test on rdev->raid_disk is
sufficient to ensure that the re-add will succeed.

Reported-by: Alexander Lyakas <alex.bolshoy@gmail.com>
Tested-by: Alexander Lyakas <alex.bolshoy@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2012-07-03 15:59:06 +10:00
parent 32644afd89
commit f456309106
1 changed files with 1 additions and 2 deletions
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3
drivers/md/md.c
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@ -5784,8 +5784,7 @@ static int add_new_disk(struct mddev * mddev, mdu_disk_info_t *info)
super_types[mddev->major_version].
validate_super(mddev, rdev);
if ((info->state & (1<<MD_DISK_SYNC)) &&
(!test_bit(In_sync, &rdev->flags) ||
rdev->raid_disk != info->raid_disk)) {
rdev->raid_disk != info->raid_disk) {
/* This was a hot-add request, but events doesn't
* match, so reject it.
*/