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    SubjectRe: [PATCH 24/32] vfs: syscall: Add fsopen() to prepare for superblock creation [ver #9]
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    Andy Lutomirski <luto@kernel.org> wrote:

    > > 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

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