Messages in this thread | | | Date | Thu, 11 Jan 2001 14:01:14 -0500 (EST) | From | Alexander Viro <> | Subject | Re: Subtle MM bug |
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On Thu, 11 Jan 2001, Stephen C. Tweedie wrote:
> 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.
COW. Pthreads are simply irrelevant here - if you want set*id in one thread to change the credentials of the rest you can do it in libpthreads.
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