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-rw-r--r--disk-io.c31
1 files changed, 19 insertions, 12 deletions
diff --git a/disk-io.c b/disk-io.c
index b06eb03..ca76c42 100644
--- a/disk-io.c
+++ b/disk-io.c
@@ -312,9 +312,9 @@ struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
return NULL;
}
-static int write_tree_block(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- struct extent_buffer *eb)
+int write_and_map_eb(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct extent_buffer *eb)
{
int ret;
int dev_nr;
@@ -322,15 +322,6 @@ static int write_tree_block(struct btrfs_trans_handle *trans,
u64 *raid_map = NULL;
struct btrfs_multi_bio *multi = NULL;
- if (check_tree_block(root, eb))
- BUG();
-
- if (!btrfs_buffer_uptodate(eb, trans->transid))
- BUG();
-
- btrfs_set_header_flag(eb, BTRFS_HEADER_FLAG_WRITTEN);
- csum_tree_block(root, eb, 0);
-
dev_nr = 0;
length = eb->len;
ret = btrfs_map_block(&root->fs_info->mapping_tree, WRITE,
@@ -353,6 +344,22 @@ static int write_tree_block(struct btrfs_trans_handle *trans,
return 0;
}
+int write_tree_block(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct extent_buffer *eb)
+{
+ if (check_tree_block(root, eb))
+ BUG();
+
+ if (!btrfs_buffer_uptodate(eb, trans->transid))
+ BUG();
+
+ btrfs_set_header_flag(eb, BTRFS_HEADER_FLAG_WRITTEN);
+ csum_tree_block(root, eb, 0);
+
+ return write_and_map_eb(trans, root, eb);
+}
+
int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
u32 stripesize, struct btrfs_root *root,
struct btrfs_fs_info *fs_info, u64 objectid)