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| author | Jonathan Brassow <jbrassow@redhat.com> | 2012-05-22 13:55:31 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-05-22 13:55:31 +1000 |
| commit | 4f0a5e012cf41321d611e7cad63e1017d143d138 (patch) | |
| tree | 3018a9cb99e99d683174dc6ab2d2223a53b2a124 /drivers/md/raid1.c | |
| parent | c32fb9e7ecee25a5b6a45bf968dfef76f323e185 (diff) | |
| download | linux-4f0a5e012cf41321d611e7cad63e1017d143d138.tar.gz linux-4f0a5e012cf41321d611e7cad63e1017d143d138.tar.bz2 linux-4f0a5e012cf41321d611e7cad63e1017d143d138.zip | |
MD RAID1: Further conditionalize 'fullsync'
A RAID1 device does not necessarily need a fullsync if the bitmap can be used instead.
Similar to commit d6b212f4b19da5301e6b6eca562e5c7a2a6e8c8d in raid5.c, if a raid1
device can be brought back (i.e. from a transient failure) it shouldn't need a
complete resync. Provided the bitmap is not to old, it will have recorded the areas
of the disk that need recovery.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/raid1.c')
| -rw-r--r-- | drivers/md/raid1.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 8e717bd518e7..835de7168cd3 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2600,7 +2600,8 @@ static struct r1conf *setup_conf(struct mddev *mddev) if (!disk->rdev || !test_bit(In_sync, &disk->rdev->flags)) { disk->head_position = 0; - if (disk->rdev) + if (disk->rdev && + (disk->rdev->saved_raid_disk < 0)) conf->fullsync = 1; } else if (conf->last_used < 0) /* |