The first nat entry must be null. If it is corrupted, we set its bit in
nat_area_bitmap, without increasing valid_nat_entry_cnt, fsck_verify will
nullify it at last.
Reported-by: Cheng Yinchao <chengyinc...@huawei.com>
Signed-off-by: Sheng Yong <shengyo...@huawei.com>
---
fsck/mount.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/fsck/mount.c b/fsck/mount.c
index 4c807f9..ec040c8 100644
--- a/fsck/mount.c
+++ b/fsck/mount.c
@@ -1683,7 +1683,18 @@ void build_nat_area_bitmap(struct f2fs_sb_info *sbi)
&nat_block->entries[i]);
if (ni.blk_addr == 0)
continue;
- ASSERT(nid + i != 0x0);
+ if (nid + i == 0) {
+ /*
+ * nat entry [0] must be null. If
+ * it is corrupted, set its bit in
+ * nat_area_bitmap, fsck_verify will
+ * nullify it
+ */
+ ASSERT_MSG("Invalid nat entry[0]:
blk_addr[0x%x]\n",
+ ni.blk_addr);
+ config.fix_on = 1;
+ fsck->chk.valid_nat_entry_cnt--;
+ }
DBG(3, "nid[0x%8x] addr[0x%16x] ino[0x%8x]\n",
nid + i, ni.blk_addr, ni.ino);
--
2.7.1
------------------------------------------------------------------------------
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