btrfs: backref: rename and move alloc_backref_edge()

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

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index dbe170de351644323d80e71d59390b8d84db6b34..4837dcf06ba42027fd7cbd5e8d8a2d3a9855efe1 100644 (file)
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -2503,3 +2503,14 @@ struct btrfs_backref_node *btrfs_backref_alloc_node(
 
        return node;
 }
+
+struct btrfs_backref_edge *btrfs_backref_alloc_edge(
+               struct btrfs_backref_cache *cache)
+{
+       struct btrfs_backref_edge *edge;
+
+       edge = kzalloc(sizeof(*edge), GFP_NOFS);
+       if (edge)
+               cache->nr_edges++;
+       return edge;
+}

diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h
index 94d49f2177d9057d88de936884ababc0b50f94c7..4f140a0ebe1cecdedc8e1c8ec63f2e115f19b66d 100644 (file)
--- a/fs/btrfs/backref.h
+++ b/fs/btrfs/backref.h
@@ -272,5 +272,7 @@ void btrfs_backref_init_cache(struct btrfs_fs_info *fs_info,
                              struct btrfs_backref_cache *cache, int is_reloc);
 struct btrfs_backref_node *btrfs_backref_alloc_node(
                struct btrfs_backref_cache *cache, u64 bytenr, int level);
+struct btrfs_backref_edge *btrfs_backref_alloc_edge(
+               struct btrfs_backref_cache *cache);
 
 #endif

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index da0b7f7dc062a6542a83303395753ff87e1db123..8b22b5966039c19c46e34b2a6b05437b41670b17 100644 (file)
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -218,17 +218,6 @@ static void free_backref_node(struct btrfs_backref_cache *cache,
        }
 }
 
-static struct btrfs_backref_edge *alloc_backref_edge(
-               struct btrfs_backref_cache *cache)
-{
-       struct btrfs_backref_edge *edge;
-
-       edge = kzalloc(sizeof(*edge), GFP_NOFS);
-       if (edge)
-               cache->nr_edges++;
-       return edge;
-}
-
 #define                LINK_LOWER      (1 << 0)
 #define                LINK_UPPER      (1 << 1)
 static void link_backref_edge(struct btrfs_backref_edge *edge,
@@ -581,7 +570,7 @@ static int handle_direct_tree_backref(struct btrfs_backref_cache *cache,
                return 0;
        }
 
-       edge = alloc_backref_edge(cache);
+       edge = btrfs_backref_alloc_edge(cache);
        if (!edge)
                return -ENOMEM;
 
@@ -698,7 +687,7 @@ static int handle_indirect_tree_backref(struct btrfs_backref_cache *cache,
                        break;
                }
 
-               edge = alloc_backref_edge(cache);
+               edge = btrfs_backref_alloc_edge(cache);
                if (!edge) {
                        btrfs_put_root(root);
                        ret = -ENOMEM;
@@ -1263,7 +1252,7 @@ static int clone_backref_node(struct btrfs_trans_handle *trans,
 
        if (!node->lowest) {
                list_for_each_entry(edge, &node->lower, list[UPPER]) {
-                       new_edge = alloc_backref_edge(cache);
+                       new_edge = btrfs_backref_alloc_edge(cache);
                        if (!new_edge)
                                goto fail;