diff options
| author | Andre Noll <maan@systemlinux.org> | 2009-03-31 14:33:13 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-03-31 14:33:13 +1100 |
| commit | 58c0fed400603a802968b23ddf78f029c5a84e41 (patch) | |
| tree | 474fcb9775bb07f39ebb7802fb9b51d69222dcbb /drivers/md/raid5.c | |
| parent | 575a80fa4f623141e9791e41879d87800fb6d862 (diff) | |
md: Make mddev->size sector-based.
This patch renames the "size" field of struct mddev_s to "dev_sectors"
and stores the number of 512-byte sectors instead of the number of
1K-blocks in it.
All users of that field, including raid levels 1,4-6,10, are adjusted
accordingly. This simplifies the code a bit because it allows to get
rid of a couple of divisions/multiplications by two.
In order to make checkpatch happy, some minor coding style issues
have also been addressed. In particular, size_store() now uses
strict_strtoull() instead of simple_strtoull().
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 849478e9afdc..4d7142376e58 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3629,8 +3629,8 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped *(new_data_disks) -1, raid_disks, data_disks, &dd_idx, &pd_idx, conf); - if (last_sector >= (mddev->size<<1)) - last_sector = (mddev->size<<1)-1; + if (last_sector >= mddev->dev_sectors) + last_sector = mddev->dev_sectors - 1; while (first_sector <= last_sector) { pd_idx = stripe_to_pdidx(first_sector, conf, conf->previous_raid_disks); @@ -3670,7 +3670,7 @@ static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *ski struct stripe_head *sh; int pd_idx; int raid_disks = conf->raid_disks; - sector_t max_sector = mddev->size << 1; + sector_t max_sector = mddev->dev_sectors; int sync_blocks; int still_degraded = 0; int i; @@ -3708,7 +3708,7 @@ static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *ski */ if (mddev->degraded >= conf->max_degraded && test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) { - sector_t rv = (mddev->size << 1) - sector_nr; + sector_t rv = mddev->dev_sectors - sector_nr; *skipped = 1; return rv; } @@ -4146,8 +4146,8 @@ static int run(mddev_t *mddev) conf->expand_progress = mddev->reshape_position; /* device size must be a multiple of chunk size */ - mddev->size &= ~(mddev->chunk_size/1024 -1); - mddev->resync_max_sectors = mddev->size << 1; + mddev->dev_sectors &= ~(mddev->chunk_size / 512 - 1); + mddev->resync_max_sectors = mddev->dev_sectors; if (conf->level == 6 && conf->raid_disks < 4) { printk(KERN_ERR "raid6: not enough configured devices for %s (%d, minimum 4)\n", @@ -4254,8 +4254,8 @@ static int run(mddev_t *mddev) mddev->queue->backing_dev_info.congested_data = mddev; mddev->queue->backing_dev_info.congested_fn = raid5_congested; - mddev->array_sectors = 2 * mddev->size * (conf->previous_raid_disks - - conf->max_degraded); + mddev->array_sectors = mddev->dev_sectors * + (conf->previous_raid_disks - conf->max_degraded); blk_queue_merge_bvec(mddev->queue, raid5_mergeable_bvec); @@ -4482,11 +4482,11 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors) - conf->max_degraded); set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; - if (sectors/2 > mddev->size && mddev->recovery_cp == MaxSector) { - mddev->recovery_cp = mddev->size << 1; + if (sectors > mddev->dev_sectors && mddev->recovery_cp == MaxSector) { + mddev->recovery_cp = mddev->dev_sectors; set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); } - mddev->size = sectors /2; + mddev->dev_sectors = sectors; mddev->resync_max_sectors = sectors; return 0; } @@ -4615,7 +4615,7 @@ static void end_reshape(raid5_conf_t *conf) struct block_device *bdev; if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) { - conf->mddev->array_sectors = 2 * conf->mddev->size * + conf->mddev->array_sectors = conf->mddev->dev_sectors * (conf->raid_disks - conf->max_degraded); set_capacity(conf->mddev->gendisk, conf->mddev->array_sectors); conf->mddev->changed = 1; |