This can drop root inode, which can be caused by previous stale data.
Signed-off-by: Jaegeuk Kim <[email protected]>
---
mkfs/f2fs_format.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/mkfs/f2fs_format.c b/mkfs/f2fs_format.c
index 2e9c19a..67965ed 100644
--- a/mkfs/f2fs_format.c
+++ b/mkfs/f2fs_format.c
@@ -847,6 +847,10 @@ static int f2fs_write_super_block(void)
static int discard_obsolete_dnode(struct f2fs_node *raw_node, u_int64_t offset)
{
u_int64_t next_blkaddr = 0;
+ u_int64_t root_inode_pos = get_sb(main_blkaddr);
+
+ /* only root inode was written before truncating dnodes */
+ root_inode_pos += c.cur_seg[CURSEG_HOT_NODE] * c.blks_per_seg;
if (c.zoned_mode)
return 0;
@@ -869,6 +873,9 @@ static int discard_obsolete_dnode(struct f2fs_node
*raw_node, u_int64_t offset)
return -1;
}
offset = next_blkaddr;
+ /* should avoid recursive chain due to stale data */
+ if (offset == root_inode_pos)
+ break;
} while (1);
return 0;
--
2.13.0.rc1.294.g07d810a77f-goog
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Linux-f2fs-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
