From: Paolo Bonzini <pbonzini@redhat.com>
To: ChenLiang <chenliang88@huawei.com>
Cc: "kwolf@redhat.com" <kwolf@redhat.com>,
"Gonglei (Arei)" <arei.gonglei@huawei.com>,
"Huangweidong (C)" <weidong.huang@huawei.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"stefanha@redhat.com" <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] ide: fix double free
Date: Wed, 02 Jul 2014 13:24:00 +0200 [thread overview]
Message-ID: <53B3EBD0.8080701@redhat.com> (raw)
In-Reply-To: <53B3E92E.1040909@huawei.com>
Il 02/07/2014 13:12, ChenLiang ha scritto:
> This patch avoid freeing dbs by dma_complete when dma_aio_cancel is running.
> Because dma_complete also will be called by dma_bdrv_cb. So double free
> will never happen.
Yes, you already said that. But I'm not sure _why_ the patch avoids
freeing dbs, especially since the patch adds a free in dma_aio_cancel
itself. My patch shouldn't have any effect. Where is my analysis of it
wrong?
Paolo
next prev parent reply other threads:[~2014-07-02 11:24 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-02 8:50 [Qemu-devel] [PATCH] ide: fix double free arei.gonglei
2014-07-02 9:04 ` Paolo Bonzini
2014-07-02 9:24 ` ChenLiang
2014-07-02 9:25 ` Paolo Bonzini
2014-07-02 9:46 ` Gonglei (Arei)
2014-07-02 10:16 ` Paolo Bonzini
2014-07-02 11:12 ` ChenLiang
2014-07-02 11:24 ` Paolo Bonzini [this message]
2014-07-02 11:33 ` ChenLiang
2014-07-02 11:40 ` Paolo Bonzini
2014-07-02 11:57 ` ChenLiang
2014-07-02 12:19 ` Paolo Bonzini
2014-07-02 12:46 ` 陈梁
2014-07-02 12:54 ` 陈梁
2014-07-02 13:09 ` Paolo Bonzini
2014-07-03 2:23 ` ChenLiang
2014-07-03 10:41 ` Paolo Bonzini
2014-07-07 8:12 ` ChenLiang
2014-07-07 12:38 ` Paolo Bonzini
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