public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Ingo Molnar <mingo@elte.hu>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Brian Gerst <brgerst@gmail.com>, Tejun Heo <tj@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: pass in pt_regs pointer for syscalls that need it (take 2)
Date: Thu, 12 Feb 2009 12:02:50 +0100	[thread overview]
Message-ID: <20090212110250.GA23665@elte.hu> (raw)
In-Reply-To: <49934C01.8000309@zytor.com>


* H. Peter Anvin <hpa@zytor.com> wrote:

> Brian Gerst wrote:
>> Some syscalls need to access the pt_regs structure, either to copy
>> user register state or to modifiy it.  This patch adds stubs to load
>> the address of the pt_regs struct into the %eax register, and changes
>> the syscalls to take the pointer as an argument instead of relying on
>> the assumption that the pt_regs structure overlaps the function
>> arguments.
>>
>> Signed-off-by: Brian Gerst <brgerst@gmail.com>
>
> Testing this now, together with the do_rt_sigreturn -> sys_rt_sigreturn  
> change.  If it works okay I'll commit it as an incremental diff to  
> tip:core/percpu.

FYI, i merged the delta commit you applied to tip:master as well - it's all
looking good in testing so far.

	Ingo

  reply	other threads:[~2009-02-12 11:03 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-10 14:51 [PATCH 0/3] x86: Fix pt_regs passed by value Brian Gerst
2009-02-10 14:51 ` [PATCH 1/3] x86: Use pt_regs pointer in do_device_not_available() Brian Gerst
2009-02-11  7:43   ` Tejun Heo
2009-02-11 10:13     ` Ingo Molnar
2009-02-11 14:34     ` Brian Gerst
2009-02-11 14:42       ` Tejun Heo
2009-02-11 14:46         ` Brian Gerst
2009-02-11 14:53           ` Tejun Heo
2009-02-10 14:51 ` [PATCH 2/3] x86: Pass in pt_regs pointer for syscalls that need it Brian Gerst
2009-02-11  7:41   ` Tejun Heo
2009-02-11 10:18     ` Ingo Molnar
2009-02-11 14:14       ` Tejun Heo
2009-02-11 14:31     ` Brian Gerst
2009-02-11 14:41       ` Tejun Heo
2009-02-11 14:43         ` Tejun Heo
2009-02-11 14:48         ` Tejun Heo
2009-02-11 14:58           ` Ingo Molnar
2009-02-11 14:59           ` Brian Gerst
2009-02-11 15:05             ` Tejun Heo
2009-02-11 15:10               ` Brian Gerst
2009-02-11 15:14                 ` Tejun Heo
2009-02-11 15:59                   ` Ingo Molnar
2009-02-12  1:12                     ` Tejun Heo
2009-02-11 15:01       ` Ingo Molnar
2009-02-11 17:52   ` H. Peter Anvin
2009-02-11 18:27     ` Brian Gerst
2009-02-11 19:50       ` H. Peter Anvin
2009-02-11 19:57         ` Brian Gerst
2009-02-11 20:00           ` H. Peter Anvin
2009-02-11 21:43   ` [PATCH] x86: pass in pt_regs pointer for syscalls that need it (take 2) Brian Gerst
2009-02-11 21:50     ` H. Peter Anvin
2009-02-11 22:06     ` H. Peter Anvin
2009-02-12 11:02       ` Ingo Molnar [this message]
2009-02-10 14:51 ` [PATCH 3/3] x86: Drop -fno-stack-protector after pt_regs fixes Brian Gerst
2009-02-11 11:42 ` [PATCH 0/3] x86: Fix pt_regs passed by value Ingo Molnar
2009-02-11 14:15   ` Tejun Heo

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20090212110250.GA23665@elte.hu \
    --to=mingo@elte.hu \
    --cc=brgerst@gmail.com \
    --cc=hpa@zytor.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=tj@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox