f2fs: enable in-place-update for fdatasync

This patch enforces in-place-updates only when fdatasync is requested.
If we adopt this in-place-updates for the fdatasync, we can skip to write the
recovery information.

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

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index ee5c75e08d9c..55973f7b0330 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -486,6 +486,10 @@ static inline bool need_inplace_update(struct inode *inode)
         if (S_ISDIR(inode->i_mode))
                 return false;
 
+        /* this is only set during fdatasync */
+        if (is_inode_flag_set(F2FS_I(inode), FI_NEED_IPU))
+                return true;
+
         switch (SM_I(sbi)->ipu_policy) {
         case F2FS_IPU_FORCE:
                 return true;