Btrfs: cleanup unused arguments of btrfs_csum_data

[linux-2.6-block.git] / fs / btrfs / disk-io.c

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 6d19a0a554aadc3aeadbe1df6eff03acd489375e..7bb28691ed985744d04b86e29468187ac16e5eda 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -238,7 +238,7 @@ out:
        return em;
 }
 
-u32 btrfs_csum_data(struct btrfs_root *root, char *data, u32 seed, size_t len)
+u32 btrfs_csum_data(char *data, u32 seed, size_t len)
 {
        return crc32c(seed, data, len);
 }
@@ -274,7 +274,7 @@ static int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf,
                if (err)
                        return 1;
                cur_len = min(len, map_len - (offset - map_start));
-               crc = btrfs_csum_data(root, kaddr + offset - map_start,
+               crc = btrfs_csum_data(kaddr + offset - map_start,
                                      crc, cur_len);
                len -= cur_len;
                offset += cur_len;
@@ -2919,7 +2919,7 @@ static int write_dev_supers(struct btrfs_device *device,
                        btrfs_set_super_bytenr(sb, bytenr);
 
                        crc = ~(u32)0;
-                       crc = btrfs_csum_data(NULL, (char *)sb +
+                       crc = btrfs_csum_data((char *)sb +
                                              BTRFS_CSUM_SIZE, crc,
                                              BTRFS_SUPER_INFO_SIZE -
                                              BTRFS_CSUM_SIZE);