diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-13 15:00:22 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-13 15:00:22 +0000 |
| commit | 4de3a8e101150feaefa1139611a50ff37467f33e (patch) | |
| tree | daada742542518b02d7db7c5d32e715eaa5f166d /drivers/md/raid1.h | |
| parent | 294064f58953f9964e5945424b09c51800330a83 (diff) | |
| parent | 099469502f62fbe0d7e4f0b83a2f22538367f734 (diff) | |
Merge branch 'master' into fixes
Diffstat (limited to 'drivers/md/raid1.h')
| -rw-r--r-- | drivers/md/raid1.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h index c732b6cce93..80ded139314 100644 --- a/drivers/md/raid1.h +++ b/drivers/md/raid1.h @@ -12,6 +12,9 @@ struct mirror_info { * pool was allocated for, so they know how much to allocate and free. * mddev->raid_disks cannot be used, as it can change while a pool is active * These two datums are stored in a kmalloced struct. + * The 'raid_disks' here is twice the raid_disks in r1conf. + * This allows space for each 'real' device can have a replacement in the + * second half of the array. */ struct pool_info { @@ -21,7 +24,9 @@ struct pool_info { struct r1conf { struct mddev *mddev; - struct mirror_info *mirrors; + struct mirror_info *mirrors; /* twice 'raid_disks' to + * allow for replacements. + */ int raid_disks; /* When choose the best device for a read (read_balance()) |