f2fs: record node block allocation in dnode_of_data

This patch introduces recording node block allocation in dnode_of_data.
This information helps to figure out whether any node block is allocated during
specific file operations.

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 90fb970e2b98..3e4a60da408f 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -546,6 +546,7 @@ struct dnode_of_data {
         nid_t nid;                      /* node id of the direct node block */
         unsigned int ofs_in_node;       /* data offset in the node page */
         bool inode_page_locked;         /* inode page is locked or not */
+        bool node_changed;              /* is node block changed */
         block_t data_blkaddr;           /* block address of the node block */
 };