Date: Fri, 11 Mar 2016 11:44:51 -0800 From: Linus Torvalds <torvalds@...ux-foundation.org> To: Andy Lutomirski <luto@...capital.net> Cc: Ingo Molnar <mingo@...nel.org>, Rich Felker <dalias@...c.org>, Andy Lutomirski <luto@...nel.org>, "the arch/x86 maintainers" <x86@...nel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Borislav Petkov <bp@...en8.de>, "musl@...ts.openwall.com" <musl@...ts.openwall.com>, Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, Peter Zijlstra <a.p.zijlstra@...llo.nl> Subject: Re: Re: [RFC PATCH] x86/vdso/32: Add AT_SYSINFO cancellation helpers On Fri, Mar 11, 2016 at 11:39 AM, Linus Torvalds <torvalds@...ux-foundation.org> wrote: > > "An implementation may also mark other functions not specified in the > standard as cancellation points" .. but that was from the Linux man-page. The open group has "An implementation shall not introduce cancellation points into any other functions specified in this volume of POSIX.1-2008" So yeah, it looks like there would need to be some way to filter things. Oh well. Linus
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