From: Wei Wang <wei.w.wang@intel.com>
To: Pankaj Gupta <pagupta@redhat.com>
Cc: linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org, kvm@vger.kernel.org,
linux-mm@kvack.org, mst@redhat.com, mhocko@kernel.org,
mawilcox@microsoft.com, akpm@linux-foundation.org,
virtio-dev@lists.oasis-open.org, david@redhat.com,
cornelia huck <cornelia.huck@de.ibm.com>,
mgorman@techsingularity.net, aarcange@redhat.com,
amit shah <amit.shah@redhat.com>,
pbonzini@redhat.com,
liliang opensource <liliang.opensource@gmail.com>,
yang zhang wz <yang.zhang.wz@gmail.com>,
quan xu <quan.xu@aliyun.com>
Subject: Re: [PATCH v13 5/5] virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_VQ
Date: Thu, 03 Aug 2017 20:28:11 +0800 [thread overview]
Message-ID: <598316DB.4050308@intel.com> (raw)
In-Reply-To: <147332060.38438527.1501748021126.JavaMail.zimbra@redhat.com>
On 08/03/2017 04:13 PM, Pankaj Gupta wrote:
>>
>> + /* Allocate space for find_vqs parameters */
>> + vqs = kcalloc(nvqs, sizeof(*vqs), GFP_KERNEL);
>> + if (!vqs)
>> + goto err_vq;
>> + callbacks = kmalloc_array(nvqs, sizeof(*callbacks), GFP_KERNEL);
>> + if (!callbacks)
>> + goto err_callback;
>> + names = kmalloc_array(nvqs, sizeof(*names), GFP_KERNEL);
>
> is size here (integer) intentional?
Sorry, I didn't get it. Could you please elaborate more?
>
>> + if (!names)
>> + goto err_names;
>> +
>> + callbacks[0] = balloon_ack;
>> + names[0] = "inflate";
>> + callbacks[1] = balloon_ack;
>> + names[1] = "deflate";
>> +
>> + i = 2;
>> + if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_STATS_VQ)) {
>> + callbacks[i] = stats_request;
> just thinking if memory for callbacks[3] & names[3] is allocated?
Yes, the above kmalloc_array allocated them.
Best,
Wei
next prev parent reply other threads:[~2017-08-03 12:28 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-03 6:38 [PATCH v13 0/5] Virtio-balloon Enhancement Wei Wang
2017-08-03 6:38 ` [PATCH v13 1/5] Introduce xbitmap Wei Wang
2017-08-07 6:58 ` Wei Wang
2017-08-09 21:36 ` Andrew Morton
2017-08-10 5:59 ` Wei Wang
2017-08-03 6:38 ` [PATCH v13 2/5] xbitmap: add xb_find_next_bit() and xb_zero() Wei Wang
2017-08-03 6:38 ` [PATCH v13 3/5] virtio-balloon: VIRTIO_BALLOON_F_SG Wei Wang
2017-08-03 14:22 ` Michael S. Tsirkin
2017-08-03 15:17 ` Wang, Wei W
2017-08-03 15:55 ` Michael S. Tsirkin
2017-08-03 6:38 ` [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang
2017-08-03 9:11 ` Michal Hocko
2017-08-03 10:42 ` Wei Wang
2017-08-03 10:44 ` Michal Hocko
2017-08-03 11:27 ` Wei Wang
2017-08-03 11:28 ` Michal Hocko
2017-08-03 12:11 ` Wei Wang
2017-08-03 12:41 ` Michal Hocko
2017-08-03 13:17 ` Wei Wang
2017-08-03 13:50 ` Michal Hocko
2017-08-03 15:20 ` Wang, Wei W
2017-08-03 21:02 ` Michael S. Tsirkin
2017-08-04 7:53 ` Michal Hocko
2017-08-04 8:15 ` Wei Wang
2017-08-04 8:24 ` Michal Hocko
2017-08-04 8:55 ` Wei Wang
2017-08-08 6:12 ` Wei Wang
2017-08-08 6:34 ` Wei Wang
2017-08-10 7:05 ` [virtio-dev] " Michal Hocko
2017-08-10 7:38 ` Wei Wang
2017-08-10 7:53 ` [virtio-dev] " Michal Hocko
2017-08-03 6:38 ` [PATCH v13 5/5] virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_VQ Wei Wang
2017-08-03 8:13 ` Pankaj Gupta
2017-08-03 12:28 ` Wei Wang [this message]
2017-08-03 13:05 ` Pankaj Gupta
2017-08-03 13:21 ` Wei Wang
2017-08-03 12:33 ` Michael S. Tsirkin
2017-08-03 16:11 ` kbuild test robot
2017-08-16 5:57 ` [virtio-dev] [PATCH v13 0/5] Virtio-balloon Enhancement Adam Tao
2017-08-16 9:33 ` Wei Wang
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