diff options
| author | NeilBrown <neilb@suse.de> | 2011-01-12 09:03:35 +1100 |
|---|---|---|
| committer | AK <andi@firstfloor.org> | 2011-03-31 11:57:53 -0700 |
| commit | 863591babfdd78d107f54d0b3cff1c55841f902b (patch) | |
| tree | 927e37957703e8894beea2e38ae98103bee52f8a /drivers/md | |
| parent | 755fc62c61ab748285ef5940f6a7c9b93f1b70b8 (diff) | |
md: fix regression with re-adding devices to arrays with no metadata
commit bf572541ab44240163eaa2d486b06f306a31d45a upstream.
Commit 1a855a0606 (2.6.37-rc4) fixed a problem where devices were
re-added when they shouldn't be but caused a regression in a less
common case that means sometimes devices cannot be re-added when they
should be.
In particular, when re-adding a device to an array without metadata
we should always access the device, but after the above commit we
didn't.
This patch sets the In_sync flag in that case so that the re-add
succeeds.
This patch is suitable for any -stable kernel to which 1a855a0606 was
applied.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/md.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index db6552ca890c..605166b0ed2f 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5109,9 +5109,10 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info) /* set saved_raid_disk if appropriate */ if (!mddev->persistent) { if (info->state & (1<<MD_DISK_SYNC) && - info->raid_disk < mddev->raid_disks) + info->raid_disk < mddev->raid_disks) { rdev->raid_disk = info->raid_disk; - else + set_bit(In_sync, &rdev->flags); + } else rdev->raid_disk = -1; } else super_types[mddev->major_version]. |