diff mbox series

[07/19] btrfs: Move alloc_backref_node() to backref.c

Message ID 20200303071409.57982-8-wqu@suse.com (mailing list archive)
State New, archived
Headers show
Series btrfs: Move generic backref cache build functions to backref.c | expand

Commit Message

Qu Wenruo March 3, 2020, 7:13 a.m. UTC 
Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 fs/btrfs/backref.c    | 20 ++++++++++++++++++++
 fs/btrfs/backref.h    |  2 ++
 fs/btrfs/relocation.c | 20 --------------------
 3 files changed, 22 insertions(+), 20 deletions(-)
diff mbox series

Patch

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 8fc1d520695e..b6183cb7c60b 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -2460,3 +2460,23 @@  void backref_cache_init(struct btrfs_fs_info *fs_info,
 	INIT_LIST_HEAD(&cache->pending_edge);
 	INIT_LIST_HEAD(&cache->useless_node);
 }
+
+struct backref_node *alloc_backref_node(struct backref_cache *cache,
+					u64 bytenr, int level)
+{
+	struct backref_node *node;
+
+	ASSERT(level >= 0 && level < BTRFS_MAX_LEVEL);
+	node = kzalloc(sizeof(*node), GFP_NOFS);
+	if (node) {
+		INIT_LIST_HEAD(&node->list);
+		INIT_LIST_HEAD(&node->upper);
+		INIT_LIST_HEAD(&node->lower);
+		RB_CLEAR_NODE(&node->rb_node);
+		cache->nr_nodes++;
+
+		node->level = level;
+		node->bytenr = bytenr;
+	}
+	return node;
+}
diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h
index 65e886fb2008..b7aad5f116ae 100644
--- a/fs/btrfs/backref.h
+++ b/fs/btrfs/backref.h
@@ -292,4 +292,6 @@  struct backref_cache {
 
 void backref_cache_init(struct btrfs_fs_info *fs_info,
 			struct backref_cache *cache, int is_reloc);
+struct backref_node *alloc_backref_node(struct backref_cache *cache,
+					u64 bytenr, int level);
 #endif
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 4ec2946f95ae..f97ff88dba21 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -215,26 +215,6 @@  static void backref_cache_cleanup(struct backref_cache *cache)
 	ASSERT(!cache->nr_edges);
 }
 
-static struct backref_node *alloc_backref_node(struct backref_cache *cache,
-						u64 bytenr, int level)
-{
-	struct backref_node *node;
-
-	ASSERT(level >= 0 && level < BTRFS_MAX_LEVEL);
-	node = kzalloc(sizeof(*node), GFP_NOFS);
-	if (node) {
-		INIT_LIST_HEAD(&node->list);
-		INIT_LIST_HEAD(&node->upper);
-		INIT_LIST_HEAD(&node->lower);
-		RB_CLEAR_NODE(&node->rb_node);
-		cache->nr_nodes++;
-
-		node->level = level;
-		node->bytenr = bytenr;
-	}
-	return node;
-}
-
 static void free_backref_node(struct backref_cache *cache,
 			      struct backref_node *node)
 {