From: Chao Yu yuchao0@huawei.com
[ Upstream commit 1f258ec13b82d3d947b515a007a748ffcbe29f9a ]
With fault_injection option, generic/361 of fstests will complain us with below message:
Call Trace: get_node_page+0x12/0x20 [f2fs] f2fs_iget+0x92/0x7d0 [f2fs] f2fs_fill_super+0x10fb/0x15e0 [f2fs] mount_bdev+0x184/0x1c0 f2fs_mount+0x15/0x20 [f2fs] mount_fs+0x39/0x150 vfs_kern_mount+0x67/0x110 do_mount+0x1bb/0xc70 SyS_mount+0x83/0xd0 do_syscall_64+0x6e/0x160 entry_SYSCALL64_slow_path+0x25/0x25
Since mkfs loop device in f2fs partition can be failed silently due to checkpoint error injection, so root inode page can be corrupted, in order to avoid needless panic, in get_node_page, it's better to leave message and return error to caller, and let fsck repaire it later.
Signed-off-by: Chao Yu yuchao0@huawei.com Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- fs/f2fs/node.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 01177ecdeab8..db787d7a2b9d 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1139,6 +1139,7 @@ repeat: f2fs_put_page(page, 1); return ERR_PTR(err); } else if (err == LOCKED_PAGE) { + err = 0; goto page_hit; }
@@ -1152,15 +1153,22 @@ repeat: goto repeat; }
- if (unlikely(!PageUptodate(page))) + if (unlikely(!PageUptodate(page))) { + err = -EIO; goto out_err; + } page_hit: if(unlikely(nid != nid_of_node(page))) { - f2fs_bug_on(sbi, 1); + f2fs_msg(sbi->sb, KERN_WARNING, "inconsistent node block, " + "nid:%lu, node_footer[nid:%u,ino:%u,ofs:%u,cpver:%llu,blkaddr:%u]", + nid, nid_of_node(page), ino_of_node(page), + ofs_of_node(page), cpver_of_node(page), + next_blkaddr_of_node(page)); ClearPageUptodate(page); + err = -EINVAL; out_err: f2fs_put_page(page, 1); - return ERR_PTR(-EIO); + return ERR_PTR(err); } return page; }