[PATCH 1/2] f2fs: avoid multiple node page writes due to inline_data

[Jaegeuk Kim]

The sceanrio is:
1. create fully node blocks
2. flush node blocks
3. write inline_data for all the node blocks again
4. flush node blocks redundantly

Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
 fs/f2fs/data.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 8d0d9ec..011456e 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1622,14 +1622,22 @@ static int f2fs_write_end(struct file *file,
 
        trace_f2fs_write_end(inode, pos, len, copied);
 
-       set_page_dirty(page);
-
        if (pos + copied > i_size_read(inode)) {
                i_size_write(inode, pos + copied);
                mark_inode_dirty(inode);
-               update_inode_page(inode);
        }
 
+       if (f2fs_has_inline_data(inode) &&
+                       is_inode_flag_set(F2FS_I(inode), FI_DATA_EXIST)) {
+               int err = f2fs_write_inline_data(inode, page);
+               if (err)
+                       set_page_dirty(page);
+       } else {
+               set_page_dirty(page);
+       }
+
+       f2fs_write_inode(inode, NULL);
+
        f2fs_put_page(page, 1);
        f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
        return copied;
-- 
2.6.3