mainline inclusion
from mainline-v5.6-rc4
commit 54295159
category: bugfix
bugzilla: 185881
CVE: CVE-2021-4037

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=542951592c99ff7b15c050954c051dd6dd6c0f97

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

Use the Linux inode i_uid/i_gid members everywhere and just convert
from/to the scalar value when reading or writing the on-disk inode.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com>

conficts:
fs/xfs/libxfs/xfs_inode_buf.c
fs/xfs/libxfs/xfs_inode_buf.h
fs/xfs/xfs_inode_item.c
fs/xfs/xfs_iops.c
Signed-off-by: NGuo Xuenan <guoxuenan@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Reviewed-by: NXiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>