Commit 52c2db3f authored by Changman Lee's avatar Changman Lee Committed by Jaegeuk Kim
Browse files

f2fs: check the level before calling get_nid function 



The caller of get_nid should be careful not to put lower value than
NODE_DIR1_BLOCK in case of level is zero.

Signed-off-by: default avatarChangman Lee <cm224.lee@samsung.com>
Reviewed-by: default avatarNamjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk.kim@samsung.com>
parent 266e97a8

fs/f2fs/node.c

+2 −1
Original line number Diff line number Diff line
@@ -403,6 +403,7 @@ int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode) 
		return PTR_ERR(npage[0]);



	parent = npage[0];

	if (level != 0)

		nids[1] = get_nid(parent, offset[0], true);

	dn->inode_page = npage[0];

	dn->inode_page_locked = true;