drm/msm/mdp5: Avoid flushing registers when CRTC is disabled

[deliverable/linux.git] / block / blk-lib.c

diff --git a/block/blk-lib.c b/block/blk-lib.c
index 715e948f58a4e8e1cad659a71b61c6f6920fd207..7688ee3f5d729ea3210bb2d421c607bf063d4119 100644 (file)
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -286,7 +286,6 @@ static int __blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
  * @discard:   whether to discard the block range
  *
  * Description:
-
  *  Zero-fill a block range.  If the discard flag is set and the block
  *  device guarantees that subsequent READ operations to the block range
  *  in question will return zeroes, the blocks will be discarded. Should
@@ -303,26 +302,15 @@ int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
                         sector_t nr_sects, gfp_t gfp_mask, bool discard)
 {
        struct request_queue *q = bdev_get_queue(bdev);
-       unsigned char bdn[BDEVNAME_SIZE];
-
-       if (discard && blk_queue_discard(q) && q->limits.discard_zeroes_data) {
 
-               if (!blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, 0))
-                       return 0;
-
-               bdevname(bdev, bdn);
-               pr_warn("%s: DISCARD failed. Manually zeroing.\n", bdn);
-       }
+       if (discard && blk_queue_discard(q) && q->limits.discard_zeroes_data &&
+           blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, 0) == 0)
+               return 0;
 
-       if (bdev_write_same(bdev)) {
-
-               if (!blkdev_issue_write_same(bdev, sector, nr_sects, gfp_mask,
-                                            ZERO_PAGE(0)))
-                       return 0;
-
-               bdevname(bdev, bdn);
-               pr_warn("%s: WRITE SAME failed. Manually zeroing.\n", bdn);
-       }
+       if (bdev_write_same(bdev) &&
+           blkdev_issue_write_same(bdev, sector, nr_sects, gfp_mask,
+                                   ZERO_PAGE(0)) == 0)
+               return 0;
 
        return __blkdev_issue_zeroout(bdev, sector, nr_sects, gfp_mask);
 }