From: Linus Torvalds <torvalds@linux-foundation.org>
To: wei.w.wang@intel.com
Cc: virtio-dev@lists.oasis-open.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
virtualization <virtualization@lists.linux-foundation.org>,
KVM list <kvm@vger.kernel.org>, linux-mm <linux-mm@kvack.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
Michal Hocko <mhocko@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Paolo Bonzini <pbonzini@redhat.com>,
liliang.opensource@gmail.com, yang.zhang.wz@gmail.com,
quan.xu0@gmail.com, nilal@redhat.com,
Rik van Riel <riel@redhat.com>,
peterx@redhat.com
Subject: Re: [PATCH v33 1/4] mm: add a function to get free page blocks
Date: Sat, 16 Jun 2018 08:08:53 +0900 [thread overview]
Message-ID: <CA+55aFzhuGKinEq5udPsk_uYHShkQxJYqcPO=tLCkT-oxpsgPg@mail.gmail.com> (raw)
In-Reply-To: <1529037793-35521-2-git-send-email-wei.w.wang@intel.com>
On Fri, Jun 15, 2018 at 2:08 PM Wei Wang <wei.w.wang@intel.com> wrote:
>
> This patch adds a function to get free pages blocks from a free page
> list. The obtained free page blocks are hints about free pages, because
> there is no guarantee that they are still on the free page list after
> the function returns.
Ack. This is the kind of simple interface where I don't need to worry
about the MM code calling out to random drivers or subsystems.
I think that "order" should be checked for validity, but from a MM
standpoint I think this is fine.
Linus
WARNING: multiple messages have this Message-ID (diff)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: wei.w.wang@intel.com
Cc: yang.zhang.wz@gmail.com, virtio-dev@lists.oasis-open.org,
Rik van Riel <riel@redhat.com>,
quan.xu0@gmail.com, KVM list <kvm@vger.kernel.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
nilal@redhat.com, liliang.opensource@gmail.com,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
virtualization <virtualization@lists.linux-foundation.org>,
linux-mm <linux-mm@kvack.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@kernel.org>
Subject: Re: [PATCH v33 1/4] mm: add a function to get free page blocks
Date: Sat, 16 Jun 2018 08:08:53 +0900 [thread overview]
Message-ID: <CA+55aFzhuGKinEq5udPsk_uYHShkQxJYqcPO=tLCkT-oxpsgPg@mail.gmail.com> (raw)
In-Reply-To: <1529037793-35521-2-git-send-email-wei.w.wang@intel.com>
On Fri, Jun 15, 2018 at 2:08 PM Wei Wang <wei.w.wang@intel.com> wrote:
>
> This patch adds a function to get free pages blocks from a free page
> list. The obtained free page blocks are hints about free pages, because
> there is no guarantee that they are still on the free page list after
> the function returns.
Ack. This is the kind of simple interface where I don't need to worry
about the MM code calling out to random drivers or subsystems.
I think that "order" should be checked for validity, but from a MM
standpoint I think this is fine.
Linus
next prev parent reply other threads:[~2018-06-15 23:09 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-15 4:43 [PATCH v33 0/4] Virtio-balloon: support free page reporting Wei Wang
2018-06-15 4:43 ` [virtio-dev] " Wei Wang
2018-06-15 4:43 ` [PATCH v33 1/4] mm: add a function to get free page blocks Wei Wang
2018-06-15 4:43 ` [virtio-dev] " Wei Wang
2018-06-15 23:08 ` Linus Torvalds [this message]
2018-06-15 23:08 ` Linus Torvalds
2018-06-16 1:19 ` Wang, Wei W
2018-06-16 1:19 ` [virtio-dev] " Wang, Wei W
2018-06-16 1:19 ` Wang, Wei W
2018-06-26 1:55 ` Michael S. Tsirkin
2018-06-26 1:55 ` [virtio-dev] " Michael S. Tsirkin
2018-06-26 1:55 ` Michael S. Tsirkin
2018-06-27 16:05 ` Linus Torvalds
2018-06-27 16:05 ` Linus Torvalds
2018-06-27 19:07 ` Michael S. Tsirkin
2018-06-27 19:07 ` [virtio-dev] " Michael S. Tsirkin
2018-06-27 19:07 ` Michael S. Tsirkin
2018-06-28 8:39 ` Wei Wang
2018-06-28 8:39 ` [virtio-dev] " Wei Wang
2018-06-28 8:39 ` Wei Wang
2018-06-16 4:50 ` Matthew Wilcox
2018-06-16 4:50 ` Matthew Wilcox
2018-06-17 0:07 ` Wang, Wei W
2018-06-17 0:07 ` [virtio-dev] " Wang, Wei W
2018-06-17 0:07 ` Wang, Wei W
2018-06-17 0:07 ` Wang, Wei W
2018-06-18 2:16 ` Michael S. Tsirkin
2018-06-18 2:16 ` [virtio-dev] " Michael S. Tsirkin
2018-06-18 2:16 ` Michael S. Tsirkin
2018-06-15 4:43 ` Wei Wang
2018-06-15 4:43 ` [PATCH v33 2/4] virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT Wei Wang
2018-06-15 4:43 ` [virtio-dev] " Wei Wang
2018-06-15 11:42 ` Michael S. Tsirkin
2018-06-15 11:42 ` [virtio-dev] " Michael S. Tsirkin
2018-06-15 11:42 ` Michael S. Tsirkin
2018-06-15 14:11 ` Wang, Wei W
2018-06-15 14:11 ` [virtio-dev] " Wang, Wei W
2018-06-15 14:11 ` Wang, Wei W
2018-06-15 14:11 ` Wang, Wei W
2018-06-15 14:29 ` Michael S. Tsirkin
2018-06-15 14:29 ` [virtio-dev] " Michael S. Tsirkin
2018-06-15 14:29 ` Michael S. Tsirkin
2018-06-15 14:29 ` Michael S. Tsirkin
2018-06-16 1:09 ` Wang, Wei W
2018-06-16 1:09 ` [virtio-dev] " Wang, Wei W
2018-06-16 1:09 ` Wang, Wei W
2018-06-16 1:09 ` Wang, Wei W
2018-06-18 2:28 ` Michael S. Tsirkin
2018-06-18 2:28 ` [virtio-dev] " Michael S. Tsirkin
2018-06-18 2:28 ` Michael S. Tsirkin
2018-06-18 2:28 ` Michael S. Tsirkin
2018-06-19 1:06 ` [virtio-dev] " Wang, Wei W
2018-06-19 1:06 ` Wang, Wei W
2018-06-19 1:06 ` Wang, Wei W
2018-06-19 1:06 ` Wang, Wei W
2018-06-19 3:05 ` [virtio-dev] " Michael S. Tsirkin
2018-06-19 3:05 ` Michael S. Tsirkin
2018-06-19 3:05 ` Michael S. Tsirkin
2018-06-19 3:05 ` Michael S. Tsirkin
2018-06-19 3:05 ` Michael S. Tsirkin
2018-06-19 12:13 ` Wei Wang
2018-06-19 12:13 ` Wei Wang
2018-06-19 12:13 ` Wei Wang
2018-06-19 12:13 ` Wei Wang
2018-06-19 14:43 ` Michael S. Tsirkin
2018-06-19 14:43 ` Michael S. Tsirkin
2018-06-19 14:43 ` Michael S. Tsirkin
2018-06-19 14:43 ` Michael S. Tsirkin
2018-06-19 14:43 ` Michael S. Tsirkin
2018-06-20 9:11 ` Wang, Wei W
2018-06-20 9:11 ` Wang, Wei W
2018-06-20 9:11 ` Wang, Wei W
2018-06-20 9:11 ` Wang, Wei W
2018-06-20 14:14 ` Michael S. Tsirkin
2018-06-20 14:14 ` Michael S. Tsirkin
2018-06-20 14:14 ` Michael S. Tsirkin
2018-06-20 14:14 ` Michael S. Tsirkin
2018-06-19 1:06 ` Wang, Wei W
2018-06-15 14:11 ` Wang, Wei W
2018-06-15 4:43 ` Wei Wang
2018-06-15 4:43 ` [PATCH v33 3/4] mm/page_poison: expose page_poisoning_enabled to kernel modules Wei Wang
2018-06-15 4:43 ` [virtio-dev] " Wei Wang
2018-06-15 4:43 ` Wei Wang
2018-06-15 4:43 ` [PATCH v33 4/4] virtio-balloon: VIRTIO_BALLOON_F_PAGE_POISON Wei Wang
2018-06-15 4:43 ` [virtio-dev] " Wei Wang
2018-06-15 4:43 ` Wei Wang
2018-06-15 11:29 ` [PATCH v33 0/4] Virtio-balloon: support free page reporting Michael S. Tsirkin
2018-06-15 11:29 ` [virtio-dev] " Michael S. Tsirkin
2018-06-15 14:28 ` Wang, Wei W
2018-06-15 14:28 ` [virtio-dev] " Wang, Wei W
2018-06-15 14:28 ` Wang, Wei W
2018-06-15 14:28 ` Wang, Wei W
2018-06-15 14:38 ` Michael S. Tsirkin
2018-06-15 14:38 ` [virtio-dev] " Michael S. Tsirkin
2018-06-15 14:38 ` Michael S. Tsirkin
2018-06-15 14:38 ` Michael S. Tsirkin
2018-06-15 11:29 ` Michael S. Tsirkin
2018-06-15 19:21 ` Luiz Capitulino
2018-06-15 19:21 ` Luiz Capitulino
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