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From: Paul Mackerras <paulus@samba.org>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: kvm@vger.kernel.org, Gleb Natapov <gleb@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Alexander Graf <agraf@suse.de>,
	kvm-ppc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 1/9] powerpc,kvm: fix imbalance srcu_read_[un]lock()
Date: Mon, 18 Mar 2013 08:26:48 +1100	[thread overview]
Message-ID: <20130317212648.GA4259@iris.ozlabs.ibm.com> (raw)
In-Reply-To: <1363366257-4886-2-git-send-email-laijs@cn.fujitsu.com>

On Sat, Mar 16, 2013 at 12:50:49AM +0800, Lai Jiangshan wrote:
> At the point of up_out label in kvmppc_hv_setup_htab_rma(),
> srcu read lock is still held.
> 
> We have to release it before return.
> 
> Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
> Cc: Marcelo Tosatti <mtosatti@redhat.com>
> Cc: Gleb Natapov <gleb@redhat.com>
> Cc: Alexander Graf <agraf@suse.de>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: kvm@vger.kernel.org
> Cc: kvm-ppc@vger.kernel.org
> ---
>  arch/powerpc/kvm/book3s_hv.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
> index 80dcc53..c26740e 100644
> --- a/arch/powerpc/kvm/book3s_hv.c
> +++ b/arch/powerpc/kvm/book3s_hv.c
> @@ -1799,7 +1799,7 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
>  
>   up_out:
>  	up_read(&current->mm->mmap_sem);
> -	goto out;
> +	goto out_srcu;

Acked-by: Paul Mackerras <paulus@samba.org>

  reply	other threads:[~2013-03-17 21:26 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1363366257-4886-1-git-send-email-laijs@cn.fujitsu.com>
2013-03-15 16:50 ` [PATCH 1/9] powerpc,kvm: fix imbalance srcu_read_[un]lock() Lai Jiangshan
2013-03-17 21:26   ` Paul Mackerras [this message]
2013-04-11 21:51     ` Paul E. McKenney

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