Btrfs: kill unused arguments of cache_block_group

Argument 'trans' and 'root' are not used any more.

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

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a4a062a0a79c66ce3e207d2710c96e53cbbaa921..a9dc12d5ac1ba32b1b8821cc508cbd6ffe5d200d 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -468,8 +468,6 @@ out:
 }
 
 static int cache_block_group(struct btrfs_block_group_cache *cache,
-                            struct btrfs_trans_handle *trans,
-                            struct btrfs_root *root,
                             int load_cache_only)
 {
        DEFINE_WAIT(wait);
@@ -4802,7 +4800,7 @@ static int update_block_group(struct btrfs_trans_handle *trans,
                 * space back to the block group, otherwise we will leak space.
                 */
                if (!alloc && cache->cached == BTRFS_CACHE_NO)
-                       cache_block_group(cache, trans, NULL, 1);
+                       cache_block_group(cache, 1);
 
                byte_in_group = bytenr - cache->key.objectid;
                WARN_ON(byte_in_group > cache->key.offset);
@@ -4917,7 +4915,7 @@ int btrfs_pin_extent_for_log_replay(struct btrfs_trans_handle *trans,
         * to one because the slow code to read in the free extents does check
         * the pinned extents.
         */
-       cache_block_group(cache, trans, root, 1);
+       cache_block_group(cache, 1);
 
        pin_down_extent(root, cache, bytenr, num_bytes, 0);
 
@@ -5707,8 +5705,7 @@ have_block_group:
                cached = block_group_cache_done(block_group);
                if (unlikely(!cached)) {
                        found_uncached_bg = true;
-                       ret = cache_block_group(block_group, trans,
-                                               orig_root, 0);
+                       ret = cache_block_group(block_group, 0);
                        BUG_ON(ret < 0);
                        ret = 0;
                }
@@ -6244,7 +6241,7 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
        u64 num_bytes = ins->offset;
 
        block_group = btrfs_lookup_block_group(root->fs_info, ins->objectid);
-       cache_block_group(block_group, trans, NULL, 0);
+       cache_block_group(block_group, 0);
        caching_ctl = get_caching_control(block_group);
 
        if (!caching_ctl) {
@@ -8187,7 +8184,7 @@ int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range)
 
                if (end - start >= range->minlen) {
                        if (!block_group_cache_done(cache)) {
-                               ret = cache_block_group(cache, NULL, root, 0);
+                               ret = cache_block_group(cache, 0);
                                if (!ret)
                                        wait_block_group_cache_done(cache);
                        }