linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Joerg Roedel <joro@8bytes.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Benjamin LaHaise <bcrl@kvack.org>,
	linux-aio@kvack.org, Linux Kernel <linux-kernel@vger.kernel.org>,
	Jesse Barnes <jbarnes@virtuousgeek.org>
Subject: Re: [PATCH] iommu/amd: Fix amd_iommu_free_device()
Date: Wed, 4 Feb 2015 15:35:21 +0100	[thread overview]
Message-ID: <20150204143521.GA12552@8bytes.org> (raw)
In-Reply-To: <20150203122551.GJ24151@twins.programming.kicks-ass.net>

On Tue, Feb 03, 2015 at 01:25:51PM +0100, Peter Zijlstra wrote:
> Subject: iommu/amd: Fix amd_iommu_free_device()
> 
> put_device_state_wait() doesn't loop on the condition and a spurious
> wakeup will have it free the device state even though there might still
> be references out to it.
> 
> Fix this by using 'normal' wait primitives.
> 
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> ---
>  drivers/iommu/amd_iommu_v2.c | 20 +++++++-------------
>  1 file changed, 7 insertions(+), 13 deletions(-)

Applied this, thanks Peter.


      parent reply	other threads:[~2015-02-04 14:35 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-01 14:40 [GIT PULL] aio: fix sleeping while TASK_INTERRUPTIBLE Benjamin LaHaise
2015-02-01 21:01 ` Linus Torvalds
2015-02-01 22:14   ` Benjamin LaHaise
2015-02-01 23:09     ` Linus Torvalds
2015-02-01 23:33     ` Linus Torvalds
2015-02-02  0:16       ` Benjamin LaHaise
2015-02-02  1:18         ` Linus Torvalds
2015-02-02  5:29           ` Dave Chinner
     [not found]             ` <CA+55aFwvEcq-rAbqF2qTut=kJgFZZnhHptoPi6FSVrF4+1tBNA@mail.gmail.com>
2015-02-02  5:54               ` Dave Chinner
2015-02-02 18:45                 ` Linus Torvalds
2015-02-03 22:23                   ` Dave Chinner
2015-02-03 23:34                     ` Benjamin LaHaise
2015-02-03 11:27           ` Peter Zijlstra
2015-02-03 11:33             ` Peter Zijlstra
2015-02-03 11:55               ` Peter Zijlstra
2015-02-03 23:24                 ` Jens Axboe
2015-02-04 10:18                   ` [PATCH] block: Simplify bsg complete all Peter Zijlstra
2015-02-04 17:06                     ` Jens Axboe
2015-02-03 12:25             ` [PATCH] iommu/amd: Fix amd_iommu_free_device() Peter Zijlstra
2015-02-03 17:04               ` Jesse Barnes
2015-02-03 17:34               ` Joerg Roedel
2015-02-03 19:23                 ` Linus Torvalds
2015-02-03 22:56                   ` Joerg Roedel
2015-02-04 14:35               ` Joerg Roedel [this message]

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=20150204143521.GA12552@8bytes.org \
    --to=joro@8bytes.org \
    --cc=bcrl@kvack.org \
    --cc=jbarnes@virtuousgeek.org \
    --cc=linux-aio@kvack.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=peterz@infradead.org \
    --cc=torvalds@linux-foundation.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).