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Mon, 7 Jun 2021 08:51:07 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Mon, 7 Jun 2021 08:55:55 +0800 Received: from [10.174.177.243] (10.174.177.243) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Mon, 7 Jun 2021 08:55:55 +0800 Subject: Re: [PATCH v2 00/15] init_mm: cleanup ARCH's text/data/brk setup code To: Mike Rapoport CC: Andrew Morton , , , , , , , , , , , , References: <20210604070633.32363-1-wangkefeng.wang@huawei.com> From: Kefeng Wang Message-ID: <481056ab-686e-9f42-3b8a-b31941f58af6@huawei.com> Date: Mon, 7 Jun 2021 08:55:54 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US X-Originating-IP: [10.174.177.243] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 65351C0042C0 Authentication-Results: imf03.hostedemail.com; dkim=none; spf=pass (imf03.hostedemail.com: domain of wangkefeng.wang@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=wangkefeng.wang@huawei.com; dmarc=pass (policy=none) header.from=huawei.com X-Stat-Signature: hecwndgnzyzsz4emys7swbn51d19nq7u X-HE-Tag: 1623027360-494364 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 2021/6/7 5:29, Mike Rapoport wrote: > Hello Kefeng, > > On Fri, Jun 04, 2021 at 03:06:18PM +0800, Kefeng Wang wrote: >> Add setup_initial_init_mm() helper, then use it >> to cleanup the text, data and brk setup code. >> >> v2: >> - change argument from "char *" to "void *" setup_initial_init_mm() >> suggested by Geert Uytterhoeven >> - use NULL instead of (void *)0 on h8300 and m68k >> - collect ACKs >> >> Cc: linux-snps-arc@lists.infradead.org >> Cc: linux-arm-kernel@lists.infradead.org >> Cc: linux-csky@vger.kernel.org >> Cc: uclinux-h8-devel@lists.sourceforge.jp >> Cc: linux-m68k@lists.linux-m68k.org >> Cc: openrisc@lists.librecores.org >> Cc: linuxppc-dev@lists.ozlabs.org >> Cc: linux-riscv@lists.infradead.org >> Cc: linux-sh@vger.kernel.org >> Cc: linux-s390@vger.kernel.org >> Kefeng Wang (15): >> mm: add setup_initial_init_mm() helper >> arc: convert to setup_initial_init_mm() >> arm: convert to setup_initial_init_mm() >> arm64: convert to setup_initial_init_mm() >> csky: convert to setup_initial_init_mm() >> h8300: convert to setup_initial_init_mm() >> m68k: convert to setup_initial_init_mm() >> nds32: convert to setup_initial_init_mm() >> nios2: convert to setup_initial_init_mm() >> openrisc: convert to setup_initial_init_mm() >> powerpc: convert to setup_initial_init_mm() >> riscv: convert to setup_initial_init_mm() >> s390: convert to setup_initial_init_mm() >> sh: convert to setup_initial_init_mm() >> x86: convert to setup_initial_init_mm() > I might be missing something, but AFAIU the init_mm.start_code and othe= r > fields are not used really early so the new setup_initial_init_mm() > function can be called in the generic code outside setup_arch(), e.g in > mm_init(). Hi Mike=EF=BC=8C each architecture has their own value, not the same, eg = m68K and h8300, also the name of the text/code/brk is different in some arch, so=20 I keep unchanged. > =20 >> arch/arc/mm/init.c | 5 +---- >> arch/arm/kernel/setup.c | 5 +---- >> arch/arm64/kernel/setup.c | 5 +---- >> arch/csky/kernel/setup.c | 5 +---- >> arch/h8300/kernel/setup.c | 5 +---- >> arch/m68k/kernel/setup_mm.c | 5 +---- >> arch/m68k/kernel/setup_no.c | 5 +---- >> arch/nds32/kernel/setup.c | 5 +---- >> arch/nios2/kernel/setup.c | 5 +---- >> arch/openrisc/kernel/setup.c | 5 +---- >> arch/powerpc/kernel/setup-common.c | 5 +---- >> arch/riscv/kernel/setup.c | 5 +---- >> arch/s390/kernel/setup.c | 5 +---- >> arch/sh/kernel/setup.c | 5 +---- >> arch/x86/kernel/setup.c | 5 +---- >> include/linux/mm_types.h | 8 ++++++++ >> 16 files changed, 23 insertions(+), 60 deletions(-) >> >> --=20 >> 2.26.2 >> >> >> _______________________________________________ >> linux-riscv mailing list >> linux-riscv@lists.infradead.org >> http://lists.infradead.org/mailman/listinfo/linux-riscv