From: Linus Torvalds <torvalds@linux-foundation.org>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: Michal Simek <monstr@monstr.eu>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>
Subject: Re: sigaltstack fun (was Re: new execve/kernel_thread design)
Date: Sun, 18 Nov 2012 08:45:43 -1000 [thread overview]
Message-ID: <CA+55aFxncW2pEhsjg0AO9YKyvPaHyiXZMjoJZ1J8gA+8sH7HNw@mail.gmail.com> (raw)
In-Reply-To: <20121118054510.GE16916@ZenIV.linux.org.uk>
On Sat, Nov 17, 2012 at 7:45 PM, Al Viro <viro@zeniv.linux.org.uk> wrote:
>
> Linus, do you have any objections to the above? FWIW, I've a tentative
> patchset in that direction (most of it from the last cycle); right now
> it + stuff currently in signal.git#for-next is at -3.4KLoC and I hadn't
> dealt with the biarch side of things yet...
I have absolutely no objections. sigaltstack has always been kind of
messy, and made worse by the fact that it gets effectively no testing
(because it's generally not used by normal code and even code that
uses it tends to use it only for very uncommon events). So forcing all
the sigaltstack code into generic code and at least avoiding the
"different architectures can get things subtly - or not so subtly -
wrong in different ways" sounds like a good thing.
Linus
next prev parent reply other threads:[~2012-11-18 18:46 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-16 22:35 new execve/kernel_thread design Al Viro
2012-10-17 5:32 ` Max Filippov
2012-10-17 5:43 ` Al Viro
2012-10-17 14:07 ` Jonas Bonn
2012-10-17 14:27 ` Michal Simek
2012-10-17 14:27 ` Michal Simek
2012-10-17 16:07 ` Al Viro
2012-10-17 16:07 ` Al Viro
2012-10-17 16:19 ` Al Viro
2012-10-17 16:19 ` Al Viro
2012-11-15 16:41 ` Michal Simek
2012-11-15 16:41 ` Michal Simek
2012-11-15 21:55 ` Al Viro
2012-11-15 21:55 ` Al Viro
2012-11-16 7:59 ` Michal Simek
2012-11-18 5:45 ` sigaltstack fun (was Re: new execve/kernel_thread design) Al Viro
2012-11-18 18:45 ` Linus Torvalds [this message]
2012-11-18 19:03 ` sigaltstack fun David Miller
2012-11-18 19:59 ` Al Viro
2012-11-18 20:48 ` David Miller
2012-11-19 4:55 ` Greg KH
2012-11-18 21:02 ` Al Viro
2012-11-18 21:18 ` David Miller
2012-11-19 1:10 ` Al Viro
2012-11-19 1:30 ` David Miller
2012-11-19 2:35 ` Al Viro
2012-11-19 3:27 ` David Miller
2012-11-26 5:10 ` Al Viro
2012-11-26 5:15 ` Al Viro
2012-12-04 3:03 ` David Miller
2012-12-04 2:58 ` David Miller
2012-11-21 1:53 ` sigaltstack fun (was Re: new execve/kernel_thread design) Al Viro
2012-10-19 15:49 ` new execve/kernel_thread design Al Viro
2012-10-19 17:16 ` Luck, Tony
2012-10-19 17:30 ` Al Viro
2012-10-19 18:01 ` Tony Luck
2012-10-19 18:33 ` Al Viro
2012-10-19 20:25 ` [PATCH] tile: support GENERIC_KERNEL_THREAD and GENERIC_KERNEL_EXECVE Chris Metcalf
2012-10-19 20:25 ` Chris Metcalf
2012-10-19 21:35 ` Al Viro
2012-10-20 13:06 ` Chris Metcalf
2012-10-20 13:06 ` Chris Metcalf
2012-10-20 15:34 ` Al Viro
2012-10-20 17:16 ` Al Viro
2012-10-23 17:30 ` Chris Metcalf
2012-10-23 17:30 ` Chris Metcalf
2012-10-23 18:41 ` Al Viro
2012-10-23 19:22 ` Chris Metcalf
2012-10-23 19:22 ` Chris Metcalf
2012-10-23 20:36 ` Al Viro
2012-10-25 13:31 ` Chris Metcalf
2012-10-25 13:31 ` Chris Metcalf
2012-10-25 14:25 ` Al Viro
2012-10-23 20:47 ` Thomas Gleixner
2012-10-23 20:51 ` Jeff King
2012-10-23 21:09 ` Catalin Marinas
2012-10-23 21:22 ` Jeff King
2012-10-24 11:18 ` Catalin Marinas
2012-10-23 21:25 ` Thomas Gleixner
2012-10-23 21:47 ` Jeff King
2012-10-23 22:06 ` Marc Gauthier
2012-10-23 22:23 ` Jeff King
2012-10-24 6:02 ` Johannes Sixt
2012-10-24 1:02 ` Linus Torvalds
2012-10-24 1:56 ` Al Viro
2012-10-24 2:14 ` Linus Torvalds
2012-10-24 6:02 ` Ingo Molnar
2012-10-23 17:30 ` [PATCH] arch/tile: eliminate pt_regs trampolines for syscalls Chris Metcalf
2012-10-23 17:30 ` Chris Metcalf
2012-10-22 14:23 ` [PATCH] tile: support GENERIC_KERNEL_THREAD and GENERIC_KERNEL_EXECVE Catalin Marinas
2012-10-19 20:25 ` Chris Metcalf
2012-10-25 16:54 ` new execve/kernel_thread design Richard Kuo
2012-10-26 18:31 ` [update] " Al Viro
2012-10-26 18:31 ` Al Viro
2012-10-27 3:32 ` Al Viro
2012-10-27 3:32 ` Al Viro
2012-10-29 7:53 ` Martin Schwidefsky
2012-10-29 7:53 ` Martin Schwidefsky
2012-10-29 13:25 ` Al Viro
2012-10-29 13:25 ` Al Viro
2012-10-29 14:38 ` Martin Schwidefsky
2012-10-29 14:38 ` Martin Schwidefsky
2012-10-29 14:57 ` Al Viro
2012-10-29 14:57 ` Al Viro
2012-12-07 22:23 ` Al Viro
2012-12-07 22:23 ` Al Viro
2012-12-08 2:40 ` Chris Metcalf
2012-12-08 2:40 ` Chris Metcalf
2012-12-08 2:40 ` Chris Metcalf
2012-12-13 1:54 ` Hirokazu Takata
2012-12-13 1:54 ` Hirokazu Takata
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