static void btrfs_issue_discard(struct block_device *bdev,
u64 start, u64 len)
{
- blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL);
+ blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL,
+ DISCARD_FL_BARRIER);
}
static int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,