A while ago we introduced a dedicated vfs{g,u}id_t type in commit
1e5267cd0895 ("mnt_idmapping: add vfs{g,u}id_t"). We already switched
over a good part of the VFS. Ultimately we will remove all legacy
idmapped mount helpers that operate only on k{g,u}id_t in favor of the
new type safe helpers that operate on vfs{g,u}id_t.
Cc: Seth Forshee (Digital Ocean) <sforshee@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
{
umode_t allow_utime = sbi->options.allow_utime;
- if (!uid_eq(current_fsuid(), i_uid_into_mnt(mnt_userns, inode))) {
- if (in_group_p(i_gid_into_mnt(mnt_userns, inode)))
+ if (!vfsuid_eq_kuid(i_uid_into_vfsuid(mnt_userns, inode),
+ current_fsuid())) {
+ if (vfsgid_in_group_p(i_gid_into_vfsgid(mnt_userns, inode)))
allow_utime >>= 3;
if (allow_utime & MAY_WRITE)
return 1;