From: Alex Elder <elder@dreamhost.com>
To: ceph-devel <ceph-devel@vger.kernel.org>
Subject: Fwd: Re: [PATCH] ceph: use a shared zero page rather than one per messenger
Date: Tue, 28 Feb 2012 21:04:55 -0800 [thread overview]
Message-ID: <4F4DB1F7.7090709@dreamhost.com> (raw)
In-Reply-To: <4F4DB1C7.6050104@dreamhost.com>
Neglected to copy the list on my response. -Alex
-------- Original Message --------
Subject: Re: [PATCH] ceph: use a shared zero page rather than one per
messenger
Date: Tue, 28 Feb 2012 21:04:07 -0800
From: Alex Elder <elder@dreamhost.com>
To: Christoph Hellwig <hch@infradead.org>
On 02/28/2012 08:18 PM, Christoph Hellwig wrote:
> On Tue, Feb 28, 2012 at 07:06:22PM -0800, Alex Elder wrote:
>> Each messenger allocates a page to be used when writing zeroes
>> out in the event of error or other abnormal condition. Just
>> allocate one at initialization time and have them all share it.
>
> Any reason you don't simply use the kernel-wide ZERO_PAGE()?
No reason, I just didn't take the change to that logical
conclusion. I'll update it to do that instead.
-Alex
parent reply other threads:[~2012-02-29 5:04 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <4F4DB1C7.6050104@dreamhost.com>]
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