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>

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index d166557ca8673917c66c95657d4c670c0e3c1849..26e247697e58b51c51bb411756f2962847d0e2a4 100644 (file)
--- 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;