From: Kassey Li <quic_yingangl@quicinc.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: <vbabka@kernel.org>, <minchan@kernel.org>, <vbabka@suse.cz>,
<iamjoonsoo.kim@lge.com>, <linux-kernel@vger.kernel.org>,
<linux-mm@kvack.org>
Subject: Re: [PATCH v8] mm/page_owner.c: add llseek for page_owner
Date: Thu, 18 Aug 2022 10:25:25 +0800 [thread overview]
Message-ID: <4f90ea32-4d18-dcf7-0ca1-586f7e6c8043@quicinc.com> (raw)
In-Reply-To: <20220817091324.59afdb143b6330974f4e9e4c@linux-foundation.org>
On 8/18/2022 12:13 AM, Andrew Morton wrote:
> On Tue, 16 Aug 2022 10:07:48 +0800 Kassey Li <quic_yingangl@quicinc.com> wrote:
>
>> There is usage to dump a given cma region page_owner
>> instead of all page's.
>
> So... dump all the pages and then parse out the ones you're interested in?
>
> Presumably this is too slow and presumably you have a use case in which
> this operation needs speeding up? If so, please fully describe all of
> this in the changelog. If not then please fully still describe the
> reasons for making this change.
>
that is correct, I will update the change log for detail make it easy to
know why we need this change.
prev parent reply other threads:[~2022-08-18 4:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-16 2:07 Kassey Li
2022-08-17 16:13 ` Andrew Morton
2022-08-18 2:25 ` Kassey Li [this message]
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