linux-kernel - Re: [PATCH 3/4] futex: free_pi_state outside of hb->lock sections

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <alpine.LFD.2.00.1007121231290.2798@localhost.localdomain>
Date:	Mon, 12 Jul 2010 12:35:00 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Darren Hart <dvhltc@...ibm.com>
cc:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Eric Dumazet <eric.dumazet@...il.com>,
	John Kacur <jkacur@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Mike Galbraith <efault@....de>, linux-rt-users@...r.kernel.org
Subject: Re: [PATCH 3/4] futex: free_pi_state outside of hb->lock sections

On Fri, 9 Jul 2010, Darren Hart wrote:

> free_pi_state() calls kfree() and might sleep. To prepare for raw hb->locks,
> get the calls to free_pi_state() out of the hb->lock() sections.
> 
> Signed-off-by: Darren Hart <dvhltc@...ibm.com>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Peter Zijlstra <peterz@...radead.org>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: Eric Dumazet <eric.dumazet@...il.com>
> Cc: John Kacur <jkacur@...hat.com>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> Cc: Mike Galbraith <efault@....de>
> ---
>  kernel/futex.c |   14 ++++++++------
>  1 files changed, 8 insertions(+), 6 deletions(-)
> 
> diff --git a/kernel/futex.c b/kernel/futex.c
> index a6cec32..b217972 100644
> --- a/kernel/futex.c
> +++ b/kernel/futex.c
> @@ -114,7 +114,7 @@ struct futex_q {
>  	struct plist_node list;
>  
>  	struct task_struct *task;
> -	spinlock_t *lock_ptr;
> +	raw_spinlock_t *lock_ptr;

 How is this related to the changelog ?

Thanks,

	tglx
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/