From: Matthew Wilcox <willy@infradead.org>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Wei Wang <wei.w.wang@intel.com>,
virtio-dev@lists.oasis-open.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
qemu-devel@nongnu.org, virtualization@lists.linux-foundation.org,
kvm@vger.kernel.org, linux-mm <linux-mm@kvack.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
mhocko@kernel.org, Andrew Morton <akpm@linux-foundation.org>,
Matthew Wilcox <mawilcox@microsoft.com>,
david@redhat.com,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
cornelia.huck@de.ibm.com, mgorman@techsingularity.net,
aarcange@redhat.com, amit.shah@redhat.com,
Paolo Bonzini <pbonzini@redhat.com>,
liliang.opensource@gmail.com, yang.zhang.wz@gmail.com,
quan.xu0@gmail.com, nilal@redhat.com, riel@redhat.com
Subject: Re: [Qemu-devel] [PATCH v21 1/5] xbitmap: Introduce xbitmap
Date: Fri, 16 Feb 2018 10:30:32 -0800 [thread overview]
Message-ID: <20180216183032.GA7439@bombadil.infradead.org> (raw)
In-Reply-To: <CAHp75Ve-1-TOVJUZ4anhwkkeq-RhpSg3EmN3N0r09rj6sFrQZQ@mail.gmail.com>
On Fri, Feb 16, 2018 at 07:44:50PM +0200, Andy Shevchenko wrote:
> On Tue, Jan 9, 2018 at 1:10 PM, Wei Wang <wei.w.wang@intel.com> wrote:
> > From: Matthew Wilcox <mawilcox@microsoft.com>
> >
> > The eXtensible Bitmap is a sparse bitmap representation which is
> > efficient for set bits which tend to cluster. It supports up to
> > 'unsigned long' worth of bits.
>
> > lib/xbitmap.c | 444 +++++++++++++++++++++++++++++++
>
> Please, split tests to a separate module.
Hah, I just did this two days ago! I didn't publish it yet, but I also made
it compile both in userspace and as a kernel module.
It's the top two commits here:
http://git.infradead.org/users/willy/linux-dax.git/shortlog/refs/heads/xarray-2018-02-12
Note this is a complete rewrite compared to the version presented here; it
sits on top of the XArray and no longer has a preload interface. It has a
superset of the IDA functionality.
next prev parent reply other threads:[~2018-02-16 18:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-09 11:10 [Qemu-devel] [PATCH v21 0/5] Virtio-balloon Enhancement Wei Wang
2018-01-09 11:10 ` [Qemu-devel] [PATCH v21 1/5] xbitmap: Introduce xbitmap Wei Wang
2018-02-16 17:44 ` Andy Shevchenko
2018-02-16 18:30 ` Matthew Wilcox [this message]
2018-02-16 21:45 ` Andy Shevchenko
2018-02-16 21:58 ` Matthew Wilcox
2018-01-09 11:10 ` [Qemu-devel] [PATCH v21 2/5] virtio-balloon: VIRTIO_BALLOON_F_SG Wei Wang
2018-01-09 11:11 ` [Qemu-devel] [PATCH v21 3/5] mm: support reporting free page blocks Wei Wang
2018-01-09 11:11 ` [Qemu-devel] [PATCH v21 4/5] virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_VQ Wei Wang
2018-01-09 11:11 ` [Qemu-devel] [PATCH v21 5/5] virtio-balloon: don't report free pages when page poisoning is enabled Wei Wang
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