btrfs: reada, remove unused parameter from __readahead_hook

'start' is not used since "btrfs: reada: Pass reada_extent into
__readahead_hook directly" (6e39dbe8b9e55280c).

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 84a5beb48d46b0edd78f297ed6622fbc69948706..9c7a0424af1b9c37d48b44fe38d1d002452a33de 100644 (file)
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -107,7 +107,7 @@ static int reada_add_block(struct reada_control *rc, u64 logical,
 /* in case of err, eb might be NULL */
 static void __readahead_hook(struct btrfs_fs_info *fs_info,
                             struct reada_extent *re, struct extent_buffer *eb,
-                            u64 start, int err)
+                            int err)
 {
        int nritems;
        int i;
@@ -231,7 +231,7 @@ int btree_readahead_hook(struct btrfs_fs_info *fs_info,
                goto start_machine;
        }
 
-       __readahead_hook(fs_info, re, eb, start, err);
+       __readahead_hook(fs_info, re, eb, err);
        reada_extent_put(fs_info, re);  /* our ref */
 
 start_machine:
@@ -713,9 +713,9 @@ static int reada_start_machine_dev(struct btrfs_fs_info *fs_info,
        ret = reada_tree_block_flagged(fs_info->extent_root, logical,
                        mirror_num, &eb);
        if (ret)
-               __readahead_hook(fs_info, re, NULL, logical, ret);
+               __readahead_hook(fs_info, re, NULL, ret);
        else if (eb)
-               __readahead_hook(fs_info, re, eb, eb->start, ret);
+               __readahead_hook(fs_info, re, eb, ret);
 
        if (eb)
                free_extent_buffer(eb);