Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index a1f7147b757f..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_hw_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++;