f2fs: call set_buffer_new for get_block

This patch fixes wrong handling of buffer_new flag in get_block.
If f2fs allocates new blocks and mapped buffer_head, it needs to set buffer_new
for the bh_result.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index d166557ca867..26e247697e58 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -274,7 +274,7 @@ static int check_extent_cache(struct inode *inode, pgoff_t pgofs,
                 unsigned int blkbits = inode->i_sb->s_blocksize_bits;
                 size_t count;
 
-                clear_buffer_new(bh_result);
+                set_buffer_new(bh_result);
                 map_bh(bh_result, inode->i_sb,
                                 start_blkaddr + pgofs - start_fofs);
                 count = end_fofs - pgofs + 1;
@@ -634,12 +634,14 @@ static int __get_data_block(struct inode *inode, sector_t iblock,
                 goto put_out;
 
         if (dn.data_blkaddr != NULL_ADDR) {
+                set_buffer_new(bh_result);
                 map_bh(bh_result, inode->i_sb, dn.data_blkaddr);
         } else if (create) {
                 err = __allocate_data_block(&dn);
                 if (err)
                         goto put_out;
                 allocated = true;
+                set_buffer_new(bh_result);
                 map_bh(bh_result, inode->i_sb, dn.data_blkaddr);
         } else {
                 goto put_out;