tree 2969d47ffb0ffeaf15d20ffb0eda78a2bb694a40
parent 7c4ec749a3bd89237d7195ccd621bf5d4124d6b5
author Dmitry Torokhov <dmitry.torokhov@gmail.com> 1532123807 +0000
committer David S. Miller <davem@davemloft.net> 1532155475 -0700

kernfs: allow creating kernfs objects with arbitrary uid/gid

This change allows creating kernfs files and directories with arbitrary
uid/gid instead of always using GLOBAL_ROOT_UID/GID by extending
kernfs_create_dir_ns() and kernfs_create_file_ns() with uid/gid arguments.
The "simple" kernfs_create_file() and kernfs_create_dir() are left alone
and always create objects belonging to the global root.

When creating symlinks ownership (uid/gid) is taken from the target kernfs
object.

Co-Developed-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>