From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Wang Subject: Re: [PATCH v11 6/6] virtio-balloon: VIRTIO_BALLOON_F_CMD_VQ Date: Tue, 13 Jun 2017 18:17:32 +0800 Message-ID: <593FBBBC.3060603@intel.com> References: <1497004901-30593-1-git-send-email-wei.w.wang@intel.com> <1497004901-30593-7-git-send-email-wei.w.wang@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit To: Dave Hansen , virtio-dev@lists.oasis-open.org, linux-kernel@vger.kernel.org, qemu-devel@nongnu.org, virtualization@lists.linux-foundation.org, kvm@vger.kernel.org, linux-mm@kvack.org, mst@redhat.com, david@redhat.com, cornelia.huck@de.ibm.com, akpm@linux-foundation.org, mgorman@techsingularity.net, aarcange@redhat.com, amit.shah@redhat.com, pbonzini@redhat.com, liliang.opensource@gmail.com Return-path: Sender: List-Post: List-Help: List-Unsubscribe: List-Subscribe: In-Reply-To: List-Id: kvm.vger.kernel.org On 06/12/2017 10:07 PM, Dave Hansen wrote: > On 06/09/2017 03:41 AM, Wei Wang wrote: >> + for_each_populated_zone(zone) { >> + for (order = MAX_ORDER - 1; order > 0; order--) { >> + for (migratetype = 0; migratetype < MIGRATE_TYPES; >> + migratetype++) { >> + do { >> + ret = report_unused_page_block(zone, >> + order, migratetype, &page); >> + if (!ret) { >> + pfn = (u64)page_to_pfn(page); >> + add_one_chunk(vb, vq, >> + PAGE_CHNUK_UNUSED_PAGE, >> + pfn << VIRTIO_BALLOON_PFN_SHIFT, >> + (u64)(1 << order) * >> + VIRTIO_BALLOON_PAGES_PER_PAGE); >> + } >> + } while (!ret); >> + } >> + } >> + } > This is pretty unreadable. Please add some indentation. If you go > over 80 cols, then you might need to break this up into a separate > function. But, either way, it can't be left like this. OK, I'll re-arrange it. Best, Wei