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| author | Dan Williams <dan.j.williams@intel.com> | 2009-03-17 18:10:40 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-03-31 14:57:49 +1100 |
| commit | 80c3a6ce4ba4470379b9e6a4d9bcd9d2ee26ae03 (patch) | |
| tree | de88622f05a7e681ac7bff7714e8f2d8953b66ac /drivers/md/md.h | |
| parent | 93ed05e2a56b5ee06c0100a169433b11c4aa5d0b (diff) | |
| download | linux-80c3a6ce4ba4470379b9e6a4d9bcd9d2ee26ae03.tar.gz linux-80c3a6ce4ba4470379b9e6a4d9bcd9d2ee26ae03.tar.bz2 linux-80c3a6ce4ba4470379b9e6a4d9bcd9d2ee26ae03.zip | |
md: add 'size' as a personality method
In preparation for giving userspace control over ->array_sectors we need
to be able to retrieve the 'default' size, and the 'anticipated' size
when a reshape is requested. For personalities that do not reshape emit
a warning if anything but the default size is requested.
In the raid5 case we need to update ->previous_raid_disks to make the
new 'default' size available.
Reviewed-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/md/md.h')
| -rw-r--r-- | drivers/md/md.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h index 8034f62a9d28..d2c50da1ae7f 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -312,6 +312,7 @@ struct mdk_personality int (*spare_active) (mddev_t *mddev); sector_t (*sync_request)(mddev_t *mddev, sector_t sector_nr, int *skipped, int go_faster); int (*resize) (mddev_t *mddev, sector_t sectors); + sector_t (*size) (mddev_t *mddev, sector_t sectors, int raid_disks); int (*check_reshape) (mddev_t *mddev); int (*start_reshape) (mddev_t *mddev); int (*reconfig) (mddev_t *mddev, int layout, int chunk_size); |