Export wirte_tree_block() function and allow it write extent without
transaction.
This provides the basis for later uuid change function.
Signed-off-by: Qu Wenruo <quwenruo@xxxxxxxxxxxxxx>
---
disk-io.c | 4 ++--
disk-io.h | 3 +++
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/disk-io.c b/disk-io.c
index 8a91345..4f3d1de 100644
--- a/disk-io.c
+++ b/disk-io.c
@@ -372,7 +372,7 @@ int write_and_map_eb(struct btrfs_trans_handle *trans,
return 0;
}
-static int write_tree_block(struct btrfs_trans_handle *trans,
+int write_tree_block(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *eb)
{
@@ -381,7 +381,7 @@ static int write_tree_block(struct btrfs_trans_handle *trans,
BUG();
}
- if (!btrfs_buffer_uptodate(eb, trans->transid))
+ if (trans && !btrfs_buffer_uptodate(eb, trans->transid))
BUG();
btrfs_set_header_flag(eb, BTRFS_HEADER_FLAG_WRITTEN);
diff --git a/disk-io.h b/disk-io.h
index 83cbe47..dd5bb8a 100644
--- a/disk-io.h
+++ b/disk-io.h
@@ -127,6 +127,9 @@ int csum_tree_block_size(struct extent_buffer *buf, u16 csum_sectorsize,
int verify);
int verify_tree_block_csum_silent(struct extent_buffer *buf, u16 csum_size);
int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid);
+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);
--
2.3.7
--
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