Btrfs: cleanup unused arguments of btrfs_csum_data

Argument 'root' is no more used in btrfs_csum_data().

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 09c58a35b429..24e8a356a36c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2819,7 +2819,7 @@ static int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end,
         if (ret)
                 goto zeroit;
 
-        csum = btrfs_csum_data(root, kaddr + offset, csum,  end - start + 1);
+        csum = btrfs_csum_data(kaddr + offset, csum,  end - start + 1);
         btrfs_csum_final(csum, (char *)&csum);
         if (csum != private)
                 goto zeroit;
@@ -6919,7 +6919,6 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
         struct bio_vec *bvec_end = bio->bi_io_vec + bio->bi_vcnt - 1;
         struct bio_vec *bvec = bio->bi_io_vec;
         struct inode *inode = dip->inode;
-        struct btrfs_root *root = BTRFS_I(inode)->root;
         u64 start;
 
         start = dip->logical_offset;
@@ -6936,7 +6935,7 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
                                 goto failed;
                         local_irq_save(flags);
                         kaddr = kmap_atomic(page);
-                        csum = btrfs_csum_data(root, kaddr + bvec->bv_offset,
+                        csum = btrfs_csum_data(kaddr + bvec->bv_offset,
                                                csum, bvec->bv_len);
                         btrfs_csum_final(csum, (char *)&csum);
                         kunmap_atomic(kaddr);