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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2009-07-01 11:13:45 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-07-01 11:13:45 +1000 |
| commit | 8f6c2e4b325a8e9f8f47febb2fd0ed4fae7d45a9 (patch) | |
| tree | 6e383e2ec48b5c90fe07325a7f6ab38ea1a97dfa /drivers/md/raid5.c | |
| parent | 5a4f13fad1ab5bd08dea78fc55321e429d83cddf (diff) | |
| download | op-kernel-dev-8f6c2e4b325a8e9f8f47febb2fd0ed4fae7d45a9.zip op-kernel-dev-8f6c2e4b325a8e9f8f47febb2fd0ed4fae7d45a9.tar.gz | |
md: Use new topology calls to indicate alignment and I/O sizes
Switch MD over to the new disk_stack_limits() function which checks for
aligment and adjusts preferred I/O sizes when stacking.
Also indicate preferred I/O sizes where applicable.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index f9f991e..92ef9b6 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4452,7 +4452,7 @@ static raid5_conf_t *setup_conf(mddev_t *mddev) static int run(mddev_t *mddev) { raid5_conf_t *conf; - int working_disks = 0; + int working_disks = 0, chunk_size; mdk_rdev_t *rdev; if (mddev->recovery_cp != MaxSector) @@ -4607,6 +4607,14 @@ static int run(mddev_t *mddev) md_set_array_sectors(mddev, raid5_size(mddev, 0, 0)); blk_queue_merge_bvec(mddev->queue, raid5_mergeable_bvec); + chunk_size = mddev->chunk_sectors << 9; + blk_queue_io_min(mddev->queue, chunk_size); + blk_queue_io_opt(mddev->queue, chunk_size * + (conf->raid_disks - conf->max_degraded)); + + list_for_each_entry(rdev, &mddev->disks, same_set) + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); return 0; abort: |
