btrfs: reduce parameters of btrfs_pin_reserved_extent

There is only one caller of btrfs_pin_reserved_extent that expands the
parameters to extent buffer members. We can simply pass the extent
buffer instead.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 25526e6..8674dcb 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4562,20 +4562,20 @@ int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info,
        return 0;
 }
 
-int btrfs_pin_reserved_extent(struct btrfs_trans_handle *trans, u64 start,
-                             u64 len)
+int btrfs_pin_reserved_extent(struct btrfs_trans_handle *trans,
+                             const struct extent_buffer *eb)
 {
        struct btrfs_block_group *cache;
        int ret = 0;
 
-       cache = btrfs_lookup_block_group(trans->fs_info, start);
+       cache = btrfs_lookup_block_group(trans->fs_info, eb->start);
        if (!cache) {
                btrfs_err(trans->fs_info, "unable to find block group for %llu",
-                         start);
+                         eb->start);
                return -ENOSPC;
        }
 
-       ret = pin_down_extent(trans, cache, start, len, 1);
+       ret = pin_down_extent(trans, cache, eb->start, eb->len, 1);
        btrfs_put_block_group(cache);
        return ret;
 }

diff --git a/fs/btrfs/extent-tree.h b/fs/btrfs/extent-tree.h
index 2109c72..c56f616 100644 (file)
--- a/fs/btrfs/extent-tree.h
+++ b/fs/btrfs/extent-tree.h
@@ -139,7 +139,8 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_ref *ref);
 
 int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info,
                               u64 start, u64 len, int delalloc);
-int btrfs_pin_reserved_extent(struct btrfs_trans_handle *trans, u64 start, u64 len);
+int btrfs_pin_reserved_extent(struct btrfs_trans_handle *trans,
+                             const struct extent_buffer *eb);
 int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans);
 int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, struct btrfs_ref *generic_ref);
 int btrfs_drop_snapshot(struct btrfs_root *root, int update_ref,

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 1834a6e..4f85c43 100644 (file)
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2574,7 +2574,7 @@ static int clean_log_buffer(struct btrfs_trans_handle *trans,
        btrfs_tree_unlock(eb);
 
        if (trans) {
-               ret = btrfs_pin_reserved_extent(trans, eb->start, eb->len);
+               ret = btrfs_pin_reserved_extent(trans, eb);
                if (ret)
                        return ret;
                btrfs_redirty_list_add(trans->transaction, eb);