diff options
| author |   NeilBrown <neilb@suse.de> | 2009-11-13 17:40:51 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-11-13 17:40:51 +1100 |
| commit | 7ef90146a14c2bb1de2e22399f147ebec5b74f0b (patch) | |
| tree | ab0e97fb85814f174ed5ec0645057bb65dd4bb1d /drivers/md/raid5.c | |
| parent | md: allow v0.91 metadata to record devices as being active but not in-sync. (diff) | |
| download | linux-dev-7ef90146a14c2bb1de2e22399f147ebec5b74f0b.tar.xz linux-dev-7ef90146a14c2bb1de2e22399f147ebec5b74f0b.zip | |
Don't unconditionally set in_sync on newly added device in raid5_reshape
When a reshape finds that it can add spare devices into the array,
those devices might already be 'in_sync' if they are beyond the old
size of the array, or they might not if they are within the array.
The first case happens when we change an N-drive RAID5 to an
N+1-drive RAID5.
The second happens when we convert an N-drive RAID5 to an
N+1-drive RAID6.
So set the flag more carefully.
Also, ->recovery_offset is only meaningful when the flag is clear,
so only set it in that case.
This change needs the preceding two to ensure that the non-in_sync
device doesn't get evicted from the array when it is stopped, in the
case where v0.90 metadata is used.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index dcce204b6c73..ab40529bdabe 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5361,9 +5361,11 @@ static int raid5_start_reshape(mddev_t *mddev) !test_bit(Faulty, &rdev->flags)) { if (raid5_add_disk(mddev, rdev) == 0) { char nm[20]; - set_bit(In_sync, &rdev->flags); + if (rdev->raid_disk >= conf->previous_raid_disks) + set_bit(In_sync, &rdev->flags); + else + rdev->recovery_offset = 0; added_devices++; - rdev->recovery_offset = 0; sprintf(nm, "rd%d", rdev->raid_disk); if (sysfs_create_link(&mddev->kobj, &rdev->kobj, nm)) |