svn commit: r349589 - in head: sbin/mount sys/sys sys/ufs/ffs

[Benjamin Kaduk]

On Mon, Jul 1, 2019 at 8:33 PM Kirk McKusick via svn-src-all <
svn-src-all at freebsd.org> wrote:

> Author: mckusick
> Date: Mon Jul  1 23:22:26 2019
> New Revision: 349589
> URL: https://svnweb.freebsd.org/changeset/base/349589
>
> Log:
>   Add a new "untrusted" option to the mount command. Its purpose
>   is to notify the kernel that the file system is untrusted and it
>   should use more extensive checks on the file-system's metadata
>   before using it. This option is intended to be used when mounting
>   file systems from untrusted media such as USB memory sticks or other
>   externally-provided media.
>
>
Are these additional extensive checks supposed to be computationally
expensive
in some regard, that we would not want to just always perform them?

Thanks,

Ben