Re: [PATCH 24/32] vfs: syscall: Add fsopen() to prepare for superblock creation [ver #9]

Andy Lutomirski [off-list ref] wrote:

quoted

Umm...  How about "use credentials of opener for everything"?

If you want to audit every single filesystem for any code that uses
credentials for anything and add all the right kernel APIs and make
sure the filesystem uses them and somehow keep screwups from getting
added down the line, then okay I guess.  As far as I know, we don't
even *have* an API for "open this device node using this struct cred
*".

You can use override_creds() too.

David