From: Michal Hocko <mhocko@kernel.org>
To: Miles Chen <miles.chen@mediatek.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Joe Perches <joe@perches.com>,
Matthew Wilcox <willy@infradead.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, wsd_upstream@mediatek.com
Subject: Re: [PATCH v3] mm/page_owner: use kvmalloc instead of kmalloc
Date: Thu, 1 Nov 2018 11:27:34 +0100 [thread overview]
Message-ID: <20181101102734.GF23921@dhcp22.suse.cz> (raw)
In-Reply-To: <1541066412.31492.10.camel@mtkswgap22>
On Thu 01-11-18 18:00:12, Miles Chen wrote:
[...]
> I did a test today, the only code changed is to clamp to read count to
> PAGE_SIZE and it worked well. Maybe we can solve this issue by just
> clamping the read count.
>
> count = count > PAGE_SIZE ? PAGE_SIZE : count;
This i what Matthew was proposing AFAIR. At least as a stop gap
solution. Maybe we want to extend this to a more standard implementation
later on (e.g. seq_file).
--
Michal Hocko
SUSE Labs
prev parent reply other threads:[~2018-11-01 10:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-29 5:16 miles.chen
2018-10-29 8:07 ` Michal Hocko
2018-10-29 8:17 ` Michal Hocko
2018-10-30 1:29 ` Miles Chen
2018-10-30 6:06 ` Michal Hocko
2018-10-30 6:55 ` Miles Chen
2018-10-30 8:15 ` Michal Hocko
2018-10-31 8:47 ` Miles Chen
2018-10-31 10:15 ` Michal Hocko
2018-10-31 10:19 ` Miles Chen
2018-10-31 11:41 ` Michal Hocko
2018-11-01 10:00 ` Miles Chen
2018-11-01 10:27 ` Michal Hocko [this message]
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