From: Paul Mackerras <paulus@samba.org>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Marcelo Tosatti <mtosatti@redhat.com>,
Gleb Natapov <gleb@redhat.com>, Alexander Graf <agraf@suse.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
kvm@vger.kernel.org, kvm-ppc@vger.kernel.org,
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(¤t->mm->mmap_sem);
> - goto out;
> + goto out_srcu;
Acked-by: Paul Mackerras <paulus@samba.org>
next prev parent reply other threads:[~2013-03-17 21:26 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-15 16:50 [PATCH 0/9 for-3.10] srcu: use-site fix and cleanups Lai Jiangshan
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
2013-03-15 16:50 ` [PATCH 2/9] events: use DEFINE_STATIC_SRCU() to define pmus_srcu Lai Jiangshan
2013-03-15 16:50 ` [PATCH 3/9] mmu_notifier: use DEFINE_STATIC_SRCU() to define srcu struct Lai Jiangshan
2013-03-15 16:50 ` [PATCH 4/9] netpoll: use DEFINE_STATIC_SRCU() to define netpoll_srcu Lai Jiangshan
2013-03-17 16:43 ` David Miller
2013-03-15 16:50 ` [PATCH 5/9] tomoyo: use DEFINE_SRCU() to define tomoyo_ss Lai Jiangshan
2013-03-15 16:50 ` [PATCH 6/9] fsnotify: use DEFINE_SRCU() for srcu_struct Lai Jiangshan
2013-03-15 16:50 ` [PATCH 7/9] fsnotify: use existed call_srcu() Lai Jiangshan
2013-04-05 7:34 ` Lai Jiangshan
2013-03-15 16:50 ` [PATCH 8/9] fsnotify: use BUILD_BUG_ON() to test the weight of ALL_FSNOTIFY_EVENTS Lai Jiangshan
2013-03-15 16:50 ` [PATCH 9/9] fsnotify: remove fsnotify_init() Lai Jiangshan
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