Messages in this thread | | | Date | Tue, 5 Mar 2002 15:48:38 +1100 | From | Rusty Russell <> | Subject | Re: [PATCH] Fast Userspace Mutexes III. |
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On Mon, 4 Mar 2002 15:48:48 -0500 Hubertus Franke <frankeh@watson.ibm.com> wrote:
> Also, the check on PROT_SEM is missing. I tried this before and glibc filtered > these flags out when set. But effectively, one still needs to check > whether semaphores are allowed during the sys_futex call.
Neither arch I care about (ppc, x86) needs to do anything with PROT_SEM, so it's OK. glibc will have to be fixed on any architectures which require help here, and a hook will be needed somewhere in the kernel for them.
I didn't implement it because I don't *know* which archs will need something, and what they will need. Hence my request for arch maintainers to step forward (Linus said they exist, and I believe him).
Hope that clarifies this particular wart... Rusty. -- Anyone who quotes me in their sig is an idiot. -- Rusty Russell. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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