mainline inclusion
from mainline-5.14-rc1
commit b9a037b7
category: bugfix
bugzilla: 51864 https://gitee.com/openeuler/kernel/issues/I4DDEL
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b9a037b7f3c401d3c63e0423e56aef606b1ffaaf

---------------------------

In ext4_orphan_cleanup(), if ext4_truncate() failed to get a transaction
handle, it didn't remove the inode from the in-core orphan list, which
may probably trigger below error dump in ext4_destroy_inode() during the
final iput() and could lead to memory corruption on the later orphan
list changes.

 EXT4-fs (sda): Inode 6291467 (00000000b8247c67): orphan list check failed!
 00000000b8247c67: 0001f30a 00000004 00000000 00000023  ............#...
 00000000e24cde71: 00000006 014082a3 00000000 00000000  ......@.........
 0000000072c6a5ee: 00000000 00000000 00000000 00000000  ................
 ...

This patch fix this by cleanup in-core orphan list manually if
ext4_truncate() return error.

Cc: stable@kernel.org
Signed-off-by: NZhang Yi <yi.zhang@huawei.com>
Reviewed-by: NJan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210507071904.160808-1-yi.zhang@huawei.comSigned-off-by: NTheodore Ts'o <tytso@mit.edu>
Reviewed-by: NYang Erkun <yangerkun@huawei.com>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>