From: Michal Hocko <mhocko@kernel.org>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: "Wang, Wei W" <wei.w.wang@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"virtualization@lists.linux-foundation.org"
<virtualization@lists.linux-foundation.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"mawilcox@microsoft.com" <mawilcox@microsoft.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"virtio-dev@lists.oasis-open.org"
<virtio-dev@lists.oasis-open.org>,
"david@redhat.com" <david@redhat.com>,
"cornelia.huck@de.ibm.com" <cornelia.huck@de.ibm.com>,
"mgorman@techsingularity.net" <mgorman@techsingularity.net>,
"aarcange@redhat.com" <aarcange@redhat.com>,
"amit.shah@redhat.com" <amit.shah@redhat.com>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"liliang.opensource@gmail.com" <liliang.opensource@gmail.com>,
"yang.zhang.wz@gmail.com" <yang.zhang.wz@gmail.com>,
"quan.xu@aliyun.com" <quan.xu@aliyun.com>
Subject: Re: [PATCH v13 4/5] mm: support reporting free page blocks
Date: Fri, 4 Aug 2017 09:53:37 +0200 [thread overview]
Message-ID: <20170804075337.GC26029@dhcp22.suse.cz> (raw)
In-Reply-To: <20170804000043-mutt-send-email-mst@kernel.org>
On Fri 04-08-17 00:02:01, Michael S. Tsirkin wrote:
> On Thu, Aug 03, 2017 at 03:20:09PM +0000, Wang, Wei W wrote:
> > On Thursday, August 3, 2017 9:51 PM, Michal Hocko:
> > > As I've said earlier. Start simple optimize incrementally with some numbers to
> > > justify a more subtle code.
> > > --
> >
> > OK. Let's start with the simple implementation as you suggested.
> >
> > Best,
> > Wei
>
> The tricky part is when you need to drop the lock and
> then restart because the device is busy. Would it maybe
> make sense to rotate the list so that new head
> will consist of pages not yet sent to device?
No, I this should be strictly non-modifying API.
--
Michal Hocko
SUSE Labs
WARNING: multiple messages have this Message-ID (diff)
From: Michal Hocko <mhocko@kernel.org>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: "Wang, Wei W" <wei.w.wang@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"virtualization@lists.linux-foundation.org"
<virtualization@lists.linux-foundation.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"mawilcox@microsoft.com" <mawilcox@microsoft.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"virtio-dev@lists.oasis-open.org"
<virtio-dev@lists.oasis-open.org>,
"david@redhat.com" <david@redhat.com>,
"cornelia.huck@de.ibm.com" <cornelia.huck@de.ibm.com>,
"mgorman@techsingularity.net" <mgorman@techsingularity.net>,
"aarcange@redhat.com" <aarcange@redhat.com>,
"amit.shah@redhat.com" <amit.shah@redhat.com>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"liliang.opensource@gmail.co
Subject: Re: [PATCH v13 4/5] mm: support reporting free page blocks
Date: Fri, 4 Aug 2017 09:53:37 +0200 [thread overview]
Message-ID: <20170804075337.GC26029@dhcp22.suse.cz> (raw)
In-Reply-To: <20170804000043-mutt-send-email-mst@kernel.org>
On Fri 04-08-17 00:02:01, Michael S. Tsirkin wrote:
> On Thu, Aug 03, 2017 at 03:20:09PM +0000, Wang, Wei W wrote:
> > On Thursday, August 3, 2017 9:51 PM, Michal Hocko:
> > > As I've said earlier. Start simple optimize incrementally with some numbers to
> > > justify a more subtle code.
> > > --
> >
> > OK. Let's start with the simple implementation as you suggested.
> >
> > Best,
> > Wei
>
> The tricky part is when you need to drop the lock and
> then restart because the device is busy. Would it maybe
> make sense to rotate the list so that new head
> will consist of pages not yet sent to device?
No, I this should be strictly non-modifying API.
--
Michal Hocko
SUSE Labs
WARNING: multiple messages have this Message-ID (diff)
From: Michal Hocko <mhocko@kernel.org>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: "Wang, Wei W" <wei.w.wang@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"virtualization@lists.linux-foundation.org"
<virtualization@lists.linux-foundation.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"mawilcox@microsoft.com" <mawilcox@microsoft.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"virtio-dev@lists.oasis-open.org"
<virtio-dev@lists.oasis-open.org>,
"david@redhat.com" <david@redhat.com>,
"cornelia.huck@de.ibm.com" <cornelia.huck@de.ibm.com>,
"mgorman@techsingularity.net" <mgorman@techsingularity.net>,
"aarcange@redhat.com" <aarcange@redhat.com>,
"amit.shah@redhat.com" <amit.shah@redhat.com>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"liliang.opensource@gmail.com" <liliang.opensource@gmail.com>,
"yang.zhang.wz@gmail.com" <yang.zhang.wz@gmail.com>,
"quan.xu@aliyun.com" <quan.xu@aliyun.com>
Subject: Re: [PATCH v13 4/5] mm: support reporting free page blocks
Date: Fri, 4 Aug 2017 09:53:37 +0200 [thread overview]
Message-ID: <20170804075337.GC26029@dhcp22.suse.cz> (raw)
In-Reply-To: <20170804000043-mutt-send-email-mst@kernel.org>
On Fri 04-08-17 00:02:01, Michael S. Tsirkin wrote:
> On Thu, Aug 03, 2017 at 03:20:09PM +0000, Wang, Wei W wrote:
> > On Thursday, August 3, 2017 9:51 PM, Michal Hocko:
> > > As I've said earlier. Start simple optimize incrementally with some numbers to
> > > justify a more subtle code.
> > > --
> >
> > OK. Let's start with the simple implementation as you suggested.
> >
> > Best,
> > Wei
>
> The tricky part is when you need to drop the lock and
> then restart because the device is busy. Would it maybe
> make sense to rotate the list so that new head
> will consist of pages not yet sent to device?
No, I this should be strictly non-modifying API.
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2017-08-04 7:53 UTC|newest]
Thread overview: 136+ 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 ` [virtio-dev] " Wei Wang
2017-08-03 6:38 ` Wei Wang
2017-08-03 6:38 ` [PATCH v13 1/5] Introduce xbitmap Wei Wang
2017-08-03 6:38 ` [virtio-dev] " Wei Wang
2017-08-03 6:38 ` Wei Wang
2017-08-07 6:58 ` Wei Wang
2017-08-07 6:58 ` [virtio-dev] " Wei Wang
2017-08-07 6:58 ` Wei Wang
2017-08-07 6:58 ` Wei Wang
2017-08-09 21:36 ` Andrew Morton
2017-08-09 21:36 ` Andrew Morton
2017-08-09 21:36 ` Andrew Morton
2017-08-10 5:59 ` Wei Wang
2017-08-10 5:59 ` [virtio-dev] " Wei Wang
2017-08-10 5:59 ` Wei Wang
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 ` [virtio-dev] " Wei Wang
2017-08-03 6:38 ` Wei Wang
2017-08-03 6:38 ` [PATCH v13 3/5] virtio-balloon: VIRTIO_BALLOON_F_SG Wei Wang
2017-08-03 6:38 ` [virtio-dev] " Wei Wang
2017-08-03 6:38 ` Wei Wang
2017-08-03 14:22 ` Michael S. Tsirkin
2017-08-03 14:22 ` Michael S. Tsirkin
2017-08-03 14:22 ` [virtio-dev] " Michael S. Tsirkin
2017-08-03 14:22 ` Michael S. Tsirkin
2017-08-03 15:17 ` Wang, Wei W
2017-08-03 15:17 ` [virtio-dev] " Wang, Wei W
2017-08-03 15:17 ` Wang, Wei W
2017-08-03 15:17 ` Wang, Wei W
2017-08-03 15:55 ` Michael S. Tsirkin
2017-08-03 15:55 ` Michael S. Tsirkin
2017-08-03 15:55 ` [virtio-dev] " Michael S. Tsirkin
2017-08-03 15:55 ` Michael S. Tsirkin
2017-08-03 15:55 ` Michael S. Tsirkin
2017-08-03 15:17 ` Wang, Wei W
2017-08-03 6:38 ` [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang
2017-08-03 6:38 ` [virtio-dev] " Wei Wang
2017-08-03 6:38 ` Wei Wang
2017-08-03 9:11 ` Michal Hocko
2017-08-03 9:11 ` Michal Hocko
2017-08-03 10:42 ` Wei Wang
2017-08-03 10:42 ` [virtio-dev] " Wei Wang
2017-08-03 10:42 ` Wei Wang
2017-08-03 10:44 ` Michal Hocko
2017-08-03 10:44 ` Michal Hocko
2017-08-03 11:27 ` Wei Wang
2017-08-03 11:27 ` [virtio-dev] " Wei Wang
2017-08-03 11:27 ` Wei Wang
2017-08-03 11:28 ` Michal Hocko
2017-08-03 11:28 ` Michal Hocko
2017-08-03 12:11 ` Wei Wang
2017-08-03 12:11 ` [virtio-dev] " Wei Wang
2017-08-03 12:11 ` Wei Wang
2017-08-03 12:41 ` Michal Hocko
2017-08-03 12:41 ` Michal Hocko
2017-08-03 13:17 ` Wei Wang
2017-08-03 13:17 ` [virtio-dev] " Wei Wang
2017-08-03 13:17 ` Wei Wang
2017-08-03 13:50 ` Michal Hocko
2017-08-03 13:50 ` Michal Hocko
2017-08-03 15:20 ` Wang, Wei W
2017-08-03 15:20 ` Wang, Wei W
2017-08-03 15:20 ` [virtio-dev] " Wang, Wei W
2017-08-03 15:20 ` Wang, Wei W
2017-08-03 15:20 ` Wang, Wei W
2017-08-03 21:02 ` Michael S. Tsirkin
2017-08-03 21:02 ` Michael S. Tsirkin
2017-08-03 21:02 ` [virtio-dev] " Michael S. Tsirkin
2017-08-03 21:02 ` Michael S. Tsirkin
2017-08-03 21:02 ` Michael S. Tsirkin
2017-08-04 7:53 ` Michal Hocko
2017-08-04 7:53 ` Michal Hocko [this message]
2017-08-04 7:53 ` Michal Hocko
2017-08-04 7:53 ` Michal Hocko
2017-08-04 8:15 ` Wei Wang
2017-08-04 8:15 ` Wei Wang
2017-08-04 8:15 ` [virtio-dev] " Wei Wang
2017-08-04 8:15 ` Wei Wang
2017-08-04 8:15 ` Wei Wang
2017-08-04 8:24 ` Michal Hocko
2017-08-04 8:24 ` Michal Hocko
2017-08-04 8:24 ` Michal Hocko
2017-08-04 8:24 ` Michal Hocko
2017-08-04 8:55 ` Wei Wang
2017-08-04 8:55 ` [virtio-dev] " Wei Wang
2017-08-04 8:55 ` Wei Wang
2017-08-04 8:55 ` Wei Wang
2017-08-04 8:55 ` Wei Wang
2017-08-08 6:12 ` Wei Wang
2017-08-08 6:12 ` [virtio-dev] " Wei Wang
2017-08-08 6:12 ` Wei Wang
2017-08-08 6:34 ` [virtio-dev] " Wei Wang
2017-08-08 6:34 ` Wei Wang
2017-08-08 6:34 ` Wei Wang
2017-08-08 6:34 ` Wei Wang
2017-08-08 6:34 ` Wei Wang
2017-08-10 7:05 ` [virtio-dev] " Michal Hocko
2017-08-10 7:05 ` Michal Hocko
2017-08-10 7:38 ` Wei Wang
2017-08-10 7:38 ` Wei Wang
2017-08-10 7:38 ` Wei Wang
2017-08-10 7:38 ` Wei Wang
2017-08-10 7:38 ` Wei Wang
2017-08-10 7:53 ` [virtio-dev] " Michal Hocko
2017-08-10 7:53 ` Michal Hocko
2017-08-10 7:53 ` Michal Hocko
2017-08-10 7:05 ` Michal Hocko
2017-08-08 6:12 ` Wei Wang
2017-08-03 6:38 ` [PATCH v13 5/5] virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_VQ Wei Wang
2017-08-03 6:38 ` [virtio-dev] " Wei Wang
2017-08-03 6:38 ` Wei Wang
2017-08-03 8:13 ` Pankaj Gupta
2017-08-03 8:13 ` Pankaj Gupta
2017-08-03 12:28 ` Wei Wang
2017-08-03 12:28 ` [virtio-dev] " Wei Wang
2017-08-03 12:28 ` Wei Wang
2017-08-03 13:05 ` Pankaj Gupta
2017-08-03 13:05 ` Pankaj Gupta
2017-08-03 13:21 ` Wei Wang
2017-08-03 13:21 ` [virtio-dev] " Wei Wang
2017-08-03 13:21 ` Wei Wang
2017-08-03 12:33 ` Michael S. Tsirkin
2017-08-03 12:33 ` [virtio-dev] " Michael S. Tsirkin
2017-08-03 12:33 ` Michael S. Tsirkin
2017-08-03 16:11 ` kbuild test robot
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 5:57 ` Adam Tao
2017-08-16 5:57 ` Adam Tao
2017-08-16 9:33 ` Wei Wang
2017-08-16 9:33 ` Wei Wang
2017-08-16 9:33 ` Wei Wang
2017-08-16 9:33 ` Wei Wang
2017-08-16 5:57 ` Adam Tao
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