From: "Leizhen (ThunderTown)" <thunder.leizhen@huawei.com>
To: Guanghui Feng <guanghuifeng@linux.alibaba.com>,
<baolin.wang@linux.alibaba.com>, <catalin.marinas@arm.com>,
<will@kernel.org>, <akpm@linux-foundation.org>,
<david@redhat.com>, <jianyong.wu@arm.com>, <james.morse@arm.com>,
<quic_qiancai@quicinc.com>, <christophe.leroy@csgroup.eu>,
<jonathan@marek.ca>, <mark.rutland@arm.com>,
<chenzhou10@huawei.com>, <anshuman.khandual@arm.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <rppt@kernel.org>,
<geert+renesas@glider.be>, <ardb@kernel.org>,
<linux-mm@kvack.org>
Subject: Re: [PATCH] arm64: mm: fix linear mapping mem access performace degradation
Date: Tue, 28 Jun 2022 09:40:32 +0800 [thread overview]
Message-ID: <ad348d23-6e7f-f66b-07bc-60e57d15c441@huawei.com> (raw)
In-Reply-To: <1656241815-28494-1-git-send-email-guanghuifeng@linux.alibaba.com>
On 2022/6/26 19:10, Guanghui Feng wrote:
> +void __init mapping_crashkernel(void)
> +{
> + if (can_set_direct_map() || IS_ENABLED(CONFIG_KFENCE))
> + return;
> +
> + if (!crash_mem_map || !crashk_res.end)
> + return;
All the code related to crash_mem_map can be removed now.
> +
> + map_crashkernel(swapper_pg_dir, crashk_res.start,
> + crashk_res.end + 1, PAGE_KERNEL,
> + NO_BLOCK_MAPPINGS | NO_CONT_MAPPINGS);
> +}
--
Regards,
Zhen Lei
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linux-arm-kernel mailing list
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
prev parent reply other threads:[~2022-06-28 1:41 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-26 11:10 [PATCH] arm64: mm: fix linear mapping mem access performace degradation Guanghui Feng
2022-06-27 6:34 ` Mike Rapoport
[not found] ` <4d18d303-aeed-0beb-a8a4-32893f2d438d@linux.alibaba.com>
2022-06-27 9:49 ` Mike Rapoport
2022-06-27 10:46 ` guanghui.fgh
2022-06-27 12:06 ` Leizhen (ThunderTown)
2022-06-27 12:25 ` guanghui.fgh
2022-06-28 1:34 ` Leizhen (ThunderTown)
2022-06-28 3:06 ` guanghui.fgh
2022-06-28 6:21 ` Leizhen (ThunderTown)
2022-06-28 7:52 ` guanghui.fgh
2022-06-27 16:49 ` Mike Rapoport
2022-06-28 1:50 ` Kefeng Wang
2022-06-28 3:22 ` guanghui.fgh
2022-06-28 2:55 ` guanghui.fgh
2022-06-28 1:40 ` Leizhen (ThunderTown) [this message]
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