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f2fs: introduce __f2fs_commit_super 

Introduce __f2fs_commit_super to include duplicated codes in
f2fs_commit_super for cleanup.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2015-12-16 13:19:35 +08:00 committed by Jaegeuk Kim
parent 55d1cdb25a
commit b3980910f7
1 changed files with 13 additions and 17 deletions
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30
fs/f2fs/super.c
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@ -1187,14 +1187,13 @@ next:
return 0;
}
int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
int __f2fs_commit_super(struct f2fs_sb_info *sbi, int block)
{
struct f2fs_super_block *super = F2FS_RAW_SUPER(sbi);
struct buffer_head *bh;
int err;
/* write back-up superblock first */
bh = sb_getblk(sbi->sb, sbi->valid_super_block ? 0 : 1);
bh = sb_getblk(sbi->sb, block);
if (!bh)
return -EIO;
@ -1208,25 +1207,22 @@ int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
err = __sync_dirty_buffer(bh, WRITE_FLUSH_FUA);
brelse(bh);
return err;
}
int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
{
int err;
/* write back-up superblock first */
err = __f2fs_commit_super(sbi, sbi->valid_super_block ? 0 : 1);
/* if we are in recovery path, skip writing valid superblock */
if (recover || err)
return err;
bh = sb_getblk(sbi->sb, sbi->valid_super_block);
if (!bh)
return -EIO;
/* write current valid superblock */
lock_buffer(bh);
memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super));
set_buffer_uptodate(bh);
set_buffer_dirty(bh);
unlock_buffer(bh);
err = __sync_dirty_buffer(bh, WRITE_FLUSH_FUA);
brelse(bh);
return err;
return __f2fs_commit_super(sbi, sbi->valid_super_block);
}
static int f2fs_fill_super(struct super_block *sb, void *data, int silent)