[PATCH 18/40] btrfs: Rename backref_cache_init() to btrfs_backref_cache_init() and move it to backref.c

Qu Wenruo
2020-03-23T10:25:22Z

fs/btrfs/backref.c | 17 +++++++++++++++++
fs/btrfs/backref.h | 2 ++
fs/btrfs/relocation.c | 18 +-----------------
3 files changed, 20 insertions(+), 17 deletions(-)

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index aee06eff3a04..3a54226b22da 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -2467,3 +2467,20 @@ 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 4908f47ed84d..39b1532413aa 100644
--- a/fs/btrfs/backref.h
+++ b/fs/btrfs/backref.h
@@ -268,4 +268,6 @@ 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 6c7e409662a4..b7536deb6d5e 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -185,22 +185,6 @@ 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;
@@ -4356,7 +4340,7 @@ 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);
--
2.25.2