switch file_open_root() to struct path

... and provide file_open_root_mnt(), using the root of given mount.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2021-04-01 19:00:57 -04:00
commit ffb37ca3bd
11 changed files with 29 additions and 16 deletions