From: Oleg Nesterov <oleg@redhat.com>
To: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@kernel.org>,
Jan Kratochvil <jan.kratochvil@redhat.com>,
Pedro Alves <palves@redhat.com>, Peter Anvin <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
the arch/x86 maintainers <x86@kernel.org>
Subject: Re: [PATCH] ptrace/x86: introduce TS_COMPAT_RESTART to fix get_nr_restart_syscall()
Date: Wed, 27 Nov 2019 18:06:44 +0100 [thread overview]
Message-ID: <20191127170644.GB26180@redhat.com> (raw)
In-Reply-To: <CALCETrWTjUJQVXmbhnAfpg=J1kV8XZnWrjR7Yt+a1Dd2GSTr5A@mail.gmail.com>
On 11/26, Andy Lutomirski wrote:
>
> How about we rename restart_block::fn to __fn,
Oh, please no. We can do this later, this needs to update every arch/
> add fields
> restart_syscall_nr and restart_syscall_arch,
Hmm, why do we nedd 2 fields ?
and do:
> IMO the ideal solution would be to add a new syscall nr to restart a
> syscall and make it the same on all architectures.
Damn yes! And I tried to suggest this 2 years ago. But
> This has
> unfortunate interactions with seccomp, though.
Yes. Do you think we can do something with seccomp?
Oleg.
next prev parent reply other threads:[~2019-11-27 17:06 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-26 11:06 [PATCH] ptrace/x86: introduce TS_COMPAT_RESTART to fix get_nr_restart_syscall() Oleg Nesterov
2019-11-26 11:07 ` Oleg Nesterov
2019-11-27 4:04 ` Linus Torvalds
2019-11-27 5:46 ` Andy Lutomirski
2019-11-27 17:06 ` Oleg Nesterov [this message]
2019-11-27 17:02 ` Oleg Nesterov
2019-11-27 17:21 ` Linus Torvalds
2019-11-28 15:36 ` Oleg Nesterov
2019-11-28 19:24 ` Linus Torvalds
2019-11-28 21:13 ` Andy Lutomirski
2019-11-29 17:32 ` Oleg Nesterov
2019-11-29 18:19 ` Andy Lutomirski
2019-11-29 17:21 ` Oleg Nesterov
2019-12-03 14:12 ` [PATCH v2 0/4] x86: " Oleg Nesterov
2019-12-03 14:13 ` [PATCH v2 1/4] introduce set_restart_fn() and arch_set_restart_data() Oleg Nesterov
2019-12-04 15:09 ` Oleg Nesterov
2019-12-04 15:09 ` [PATCH v3 " Oleg Nesterov
2019-12-03 14:13 ` [PATCH v2 2/4] x86: mv TS_COMPAT from asm/processor.h to asm/thread_info.h Oleg Nesterov
2019-12-03 14:13 ` [PATCH v2 3/4] x86: introduce TS_COMPAT_RESTART to fix get_nr_restart_syscall() Oleg Nesterov
2019-12-03 14:14 ` [PATCH v2 4/4] x86: introduce restart_block->arch_data to kill TS_COMPAT_RESTART Oleg Nesterov
2019-12-18 15:19 ` [PATCH v2 0/4] x86: fix get_nr_restart_syscall() Oleg Nesterov
2019-12-18 20:02 ` Linus Torvalds
2019-12-19 2:48 ` Andy Lutomirski
2020-02-17 15:54 ` Thomas Gleixner
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