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authorMartin K. Petersen <martin.petersen@oracle.com>2009-07-01 11:13:45 +1000
committerNeilBrown <neilb@suse.de>2009-07-01 11:13:45 +1000
commit8f6c2e4b325a8e9f8f47febb2fd0ed4fae7d45a9 (patch)
tree6e383e2ec48b5c90fe07325a7f6ab38ea1a97dfa /drivers/md/raid0.c
parent5a4f13fad1ab5bd08dea78fc55321e429d83cddf (diff)
downloadop-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/raid0.c')
-rw-r--r--drivers/md/raid0.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index ab4a489..335f490 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -170,8 +170,8 @@ static int create_strip_zones(mddev_t *mddev)
}
dev[j] = rdev1;
- blk_queue_stack_limits(mddev->queue,
- rdev1->bdev->bd_disk->queue);
+ disk_stack_limits(mddev->gendisk, rdev1->bdev,
+ rdev1->data_offset << 9);
/* as we don't honour merge_bvec_fn, we must never risk
* violating it, so limit ->max_sector to one PAGE, as
* a one page request is never in violation.
@@ -250,6 +250,11 @@ static int create_strip_zones(mddev_t *mddev)
mddev->chunk_sectors << 9);
goto abort;
}
+
+ blk_queue_io_min(mddev->queue, mddev->chunk_sectors << 9);
+ blk_queue_io_opt(mddev->queue,
+ (mddev->chunk_sectors << 9) * mddev->raid_disks);
+
printk(KERN_INFO "raid0: done.\n");
mddev->private = conf;
return 0;
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