btrfs: backref: rename and move backref_cache_init()

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 27f9a592379639696639457d03c47b3f5ed79d43..9c5097dcd5a38bcd912d70c7afb215f268ec24ee 100644 (file)
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -2465,3 +2465,20 @@ int btrfs_backref_iter_next(struct btrfs_backref_iter *iter)
                                                path->slots[0]);
        return 0;
 }
+
+void btrfs_backref_init_cache(struct btrfs_fs_info *fs_info,
+                             struct btrfs_backref_cache *cache, int is_reloc)
+{
+       int i;
+
+       cache->rb_root = RB_ROOT;
+       for (i = 0; i < BTRFS_MAX_LEVEL; i++)
+               INIT_LIST_HEAD(&cache->pending[i]);
+       INIT_LIST_HEAD(&cache->changed);
+       INIT_LIST_HEAD(&cache->detached);
+       INIT_LIST_HEAD(&cache->leaves);
+       INIT_LIST_HEAD(&cache->pending_edge);
+       INIT_LIST_HEAD(&cache->useless_node);
+       cache->fs_info = fs_info;
+       cache->is_reloc = is_reloc;
+}

diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h
index 0d3fb76364c6d2ee143853b58cb759617e649f1d..70d5a1fdc30e1dc0cc6c1cf649db28d6751e9e9d 100644 (file)
--- a/fs/btrfs/backref.h
+++ b/fs/btrfs/backref.h
@@ -268,4 +268,7 @@ struct btrfs_backref_cache {
        unsigned int is_reloc;
 };
 
+void btrfs_backref_init_cache(struct btrfs_fs_info *fs_info,
+                             struct btrfs_backref_cache *cache, int is_reloc);
+
 #endif

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 09076ac215908f59d4ac315eb8380b7bc73f8d07..f0726b212c2f296ff2bb8c51b91bf7741bf1b3f1 100644 (file)
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -178,22 +178,6 @@ static void mapping_tree_init(struct mapping_tree *tree)
        spin_lock_init(&tree->lock);
 }
 
-static void backref_cache_init(struct btrfs_fs_info *fs_info,
-                              struct btrfs_backref_cache *cache, int is_reloc)
-{
-       int i;
-       cache->rb_root = RB_ROOT;
-       for (i = 0; i < BTRFS_MAX_LEVEL; i++)
-               INIT_LIST_HEAD(&cache->pending[i]);
-       INIT_LIST_HEAD(&cache->changed);
-       INIT_LIST_HEAD(&cache->detached);
-       INIT_LIST_HEAD(&cache->leaves);
-       INIT_LIST_HEAD(&cache->pending_edge);
-       INIT_LIST_HEAD(&cache->useless_node);
-       cache->fs_info = fs_info;
-       cache->is_reloc = is_reloc;
-}
-
 static void backref_cache_cleanup(struct btrfs_backref_cache *cache)
 {
        struct btrfs_backref_node *node;
@@ -4231,7 +4215,7 @@ static struct reloc_control *alloc_reloc_control(struct btrfs_fs_info *fs_info)
 
        INIT_LIST_HEAD(&rc->reloc_roots);
        INIT_LIST_HEAD(&rc->dirty_subvol_roots);
-       backref_cache_init(fs_info, &rc->backref_cache, 1);
+       btrfs_backref_init_cache(fs_info, &rc->backref_cache, 1);
        mapping_tree_init(&rc->reloc_root_tree);
        extent_io_tree_init(fs_info, &rc->processed_blocks,
                            IO_TREE_RELOC_BLOCKS, NULL);