mount.cifs: introduce privilege separation

Much of the mount option parsing and other activities can be done by an
unprivileged process. Allocate the parsed_mount_info struct as an
anonymous mmap() segment and then fork to do the actual mount option
parsing. The child can then drop root privileges before populating the
parsed_mount_info struct. The parent waits for the child to exit and
then continues the mount process based on the child's exit status.

Signed-off-by: Jeff Layton <jlayton@redhat.com>

0 files changed, 0 insertions, 0 deletions