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Commit 7a01aa64 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: enforce fsync_mode=strict for renamed directory 



This is to give a option for user to be able to recover B/foo in the below
case.

mkdir A
sync()
rename(A, B)
creat (B/foo)
fsync (B/foo)
---crash---

Sugessted-by: default avatarVelayudhan Pillai <vijay@cs.utexas.edu>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 5caf80f3

fs/f2fs/namei.c

+4 −1
Original line number Diff line number Diff line
@@ -956,8 +956,11 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, 
			f2fs_put_page(old_dir_page, 0);

		f2fs_i_links_write(old_dir, false);

	}

	if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT)

	if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {

		add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);

		if (S_ISDIR(old_inode->i_mode))

			add_ino_entry(sbi, old_inode->i_ino, TRANS_DIR_INO);

	}



	f2fs_unlock_op(sbi);