[RFC PATCH 4/4] fsck.f2fs: check ino of an inode

[Sheng Yong <shengyong1@huawei.com>]

If the node is an inode, its ino in the nat entry should be equal to the
ino in its node footer. Otherwise, we drop the file.

Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Xue Liu <liuxueliu.liu@huawei.com>
---
 fsck/fsck.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fsck/fsck.c b/fsck/fsck.c
index c018d3a..312583e 100644
--- a/fsck/fsck.c
+++ b/fsck/fsck.c
@@ -372,6 +372,11 @@ static int sanity_check_nid(struct f2fs_sb_info *sbi, u32 nid,
 				le32_to_cpu(node_blk->footer.ino));
 		return -EINVAL;
 	}
+	if (ntype == TYPE_INODE && ni->ino != node_blk->footer.ino) {
+		ASSERT_MSG("nid[0x%x] TYPE_INODE nat_entry->ino[0x%x] footer.ino[0x%x]",
+				nid, ni->ino, le32_to_cpu(node_blk->footer.ino));
+		return -EINVAL;
+	}
 	if (ntype != TYPE_INODE &&
 			node_blk->footer.nid == node_blk->footer.ino) {
 		ASSERT_MSG("nid[0x%x] footer.nid[0x%x] footer.ino[0x%x]",
-- 
1.9.1


------------------------------------------------------------------------------
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140