diff options
Diffstat (limited to 'drivers/md/raid0.c')
| -rw-r--r-- | drivers/md/raid0.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 77605cdceaf1..377cf2a3c333 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -176,14 +176,15 @@ static int create_strip_zones(mddev_t *mddev) 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. + * violating it, so limit ->max_segments to 1, lying within + * a single page. */ - if (rdev1->bdev->bd_disk->queue->merge_bvec_fn && - queue_max_sectors(mddev->queue) > (PAGE_SIZE>>9)) - blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9); - + if (rdev1->bdev->bd_disk->queue->merge_bvec_fn) { + blk_queue_max_segments(mddev->queue, 1); + blk_queue_segment_boundary(mddev->queue, + PAGE_CACHE_SIZE - 1); + } if (!smallest || (rdev1->sectors < smallest->sectors)) smallest = rdev1; cnt++; @@ -325,7 +326,7 @@ static int raid0_run(mddev_t *mddev) } if (md_check_no_bitmap(mddev)) return -EINVAL; - blk_queue_max_sectors(mddev->queue, mddev->chunk_sectors); + blk_queue_max_hw_sectors(mddev->queue, mddev->chunk_sectors); mddev->queue->queue_lock = &mddev->queue->__queue_lock; ret = create_strip_zones(mddev); |