Re: Subtle MM bug

From: Stephen C. Tweedie (sct@redhat.com)
Date: Thu Jan 11 2001 - 07:56:04 EST


Hi,

On Wed, Jan 10, 2001 at 12:11:16PM -0800, Linus Torvalds wrote:
>
> That said, we can easily support the notion of CLONE_CRED if we absolutely
> have to (and sane people just shouldn't use it), so if somebody wants to
> work on this for 2.5.x...

But is it really worth the pain? I'd hate to have to audit the entire
VFS to make sure that it works if another thread changes our
credentials in the middle of a syscall, so we either end up having to
lock the credentials over every VFS syscall, or take a copy of the
credentials and pass it through every VFS internal call that we make.

--Stephen
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