linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Thomas Gleixner <tglx@linutronix.de>
To: Dave Hansen <dave@sr71.net>
Cc: Borislav Petkov <bp@alien8.de>, Oleg Nesterov <oleg@redhat.com>,
	linux-kernel@vger.kernel.org, x86@kernel.org,
	dave.hansen@linux.intel.com, riel@redhat.com, sbsiddha@gmail.com,
	luto@amacapital.net, mingo@redhat.com, hpa@zytor.com,
	fenghua.yu@intel.com
Subject: Re: [PATCH 01/16] x86, fpu: wrap get_xsave_addr() to make it safer
Date: Wed, 22 Apr 2015 17:17:08 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.11.1504221715410.13914@nanos> (raw)
In-Reply-To: <5537B6AD.6070507@sr71.net>

On Wed, 22 Apr 2015, Dave Hansen wrote:
> On 04/22/2015 06:31 AM, Borislav Petkov wrote:
> > I read tsk_get_xsave_field(@tsk, ) as give me the xsave field of @tsk
> > but doing used_math() we're querying current and I'm not sure
> > 
> > 	tsk == current
> > 
> > in all the call sites of tsk_get_xsave_field().
> 
> There aren't that many call sites. :)
> 
> But, yeah, tsk==current for all of them at the moment.

Is there a reason to have the task argument at all if thats only
intended for current?

Thanks,

	tglx



 

  reply	other threads:[~2015-04-22 15:17 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-01  0:46 [PATCH 00/16] x86, mpx updates for 4.1 (take 4) Dave Hansen
2015-04-01  0:46 ` [PATCH 01/16] x86, fpu: wrap get_xsave_addr() to make it safer Dave Hansen
2015-04-22 10:40   ` Borislav Petkov
2015-04-22 13:16     ` Oleg Nesterov
2015-04-22 13:31       ` Borislav Petkov
2015-04-22 14:56         ` Dave Hansen
2015-04-22 15:17           ` Thomas Gleixner [this message]
2015-04-22 15:21             ` Borislav Petkov
2015-04-22 15:26               ` Thomas Gleixner
2015-04-22 16:02             ` Dave Hansen
2015-04-22 15:32         ` Oleg Nesterov
2015-04-22 15:58           ` Borislav Petkov
2015-04-01  0:46 ` [PATCH 02/16] x86, mpx: use new tsk_get_xsave_addr() Dave Hansen
2015-04-01  0:46 ` [PATCH 03/16] x86, mpx: trace #BR exceptions Dave Hansen
2015-04-01  0:46 ` [PATCH 04/16] x86, mpx: trace entry to bounds exception paths Dave Hansen
2015-04-01  0:46 ` [PATCH 05/16] x86, mpx: trace ranged MPX operations Dave Hansen
2015-04-01  0:46 ` [PATCH 06/16] x86, mpx: trace allocation of new bounds tables Dave Hansen
2015-04-01  0:46 ` [PATCH 07/16] x86, mpx: boot-time disable Dave Hansen
2015-04-01  0:46 ` [PATCH 08/16] x86: make is_64bit_mm() widely available Dave Hansen
2015-04-01  0:46 ` [PATCH 09/16] x86: make __VIRTUAL_MASK safe to use on 32 bit Dave Hansen
2015-04-01  0:46 ` [PATCH 10/16] x86, mpx: we do not allocate the bounds directory Dave Hansen
2015-04-01  0:46 ` [PATCH 11/16] x86, mpx: remove redundant MPX_BNDCFG_ADDR_MASK Dave Hansen
2015-04-01  0:46 ` [PATCH 12/16] x86, mpx: Add temporary variable to reduce masking Dave Hansen
2015-04-01  0:46 ` [PATCH 13/16] x86, mpx: new directory entry to addr helper Dave Hansen
2015-04-01  0:46 ` [PATCH 14/16] x86, mpx: do 32-bit-only cmpxchg for 32-bit apps Dave Hansen
2015-04-01  0:46 ` [PATCH 15/16] x86, mpx: support 32-bit binaries on 64-bit kernel Dave Hansen
2015-04-01  0:46 ` [PATCH 16/16] x86, mpx: allow mixed binaries again Dave Hansen
2015-04-21 15:39 ` [PATCH 00/16] x86, mpx updates for 4.1 (take 4) Dave Hansen
2015-04-22 10:49 ` Borislav Petkov
2015-04-22 14:43   ` Dave Hansen

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=alpine.DEB.2.11.1504221715410.13914@nanos \
    --to=tglx@linutronix.de \
    --cc=bp@alien8.de \
    --cc=dave.hansen@linux.intel.com \
    --cc=dave@sr71.net \
    --cc=fenghua.yu@intel.com \
    --cc=hpa@zytor.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=luto@amacapital.net \
    --cc=mingo@redhat.com \
    --cc=oleg@redhat.com \
    --cc=riel@redhat.com \
    --cc=sbsiddha@gmail.com \
    --cc=x86@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;
as well as URLs for NNTP newsgroup(s).