From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71C54C433E0 for ; Thu, 28 Jan 2021 02:38:26 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1403B64DD1 for ; Thu, 28 Jan 2021 02:38:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1403B64DD1 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 440176B0005; Wed, 27 Jan 2021 21:38:25 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3F0DB6B0070; Wed, 27 Jan 2021 21:38:25 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3072A6B0072; Wed, 27 Jan 2021 21:38:25 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0126.hostedemail.com [216.40.44.126]) by kanga.kvack.org (Postfix) with ESMTP id 1A3246B0005 for ; Wed, 27 Jan 2021 21:38:25 -0500 (EST) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id C702A8249980 for ; Thu, 28 Jan 2021 02:38:24 +0000 (UTC) X-FDA: 77753624928.08.boy43_5112fe92759c Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin08.hostedemail.com (Postfix) with ESMTP id A5A7E1819E621 for ; Thu, 28 Jan 2021 02:38:24 +0000 (UTC) X-HE-Tag: boy43_5112fe92759c X-Filterd-Recvd-Size: 8279 Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190]) by imf12.hostedemail.com (Postfix) with ESMTP for ; Thu, 28 Jan 2021 02:38:23 +0000 (UTC) Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4DR4Ns5pmHzl6G5; Thu, 28 Jan 2021 10:36:45 +0800 (CST) Received: from [10.174.179.117] (10.174.179.117) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.498.0; Thu, 28 Jan 2021 10:38:12 +0800 Subject: Re: [PATCH v11 04/13] mm/ioremap: rename ioremap_*_range to vmap_*_range To: Nicholas Piggin CC: , , , Jonathan Cameron , Christoph Hellwig , Christophe Leroy , Rick Edgecombe , Ding Tianhong , , Andrew Morton References: <20210126044510.2491820-1-npiggin@gmail.com> <20210126044510.2491820-5-npiggin@gmail.com> From: Miaohe Lin Message-ID: <5a690f1c-7c12-9446-980b-6715c9290a96@huawei.com> Date: Thu, 28 Jan 2021 10:38:12 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20210126044510.2491820-5-npiggin@gmail.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.179.117] X-CFilter-Loop: Reflected 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: Hi: On 2021/1/26 12:45, Nicholas Piggin wrote: > This will be used as a generic kernel virtual mapping function, so > re-name it in preparation. > Looks good to me. Thanks. Reviewed-by: Miaohe Lin > Signed-off-by: Nicholas Piggin > --- > mm/ioremap.c | 64 +++++++++++++++++++++++++++------------------------- > 1 file changed, 33 insertions(+), 31 deletions(-) > > diff --git a/mm/ioremap.c b/mm/ioremap.c > index 5fa1ab41d152..3f4d36f9745a 100644 > --- a/mm/ioremap.c > +++ b/mm/ioremap.c > @@ -61,9 +61,9 @@ static inline int ioremap_pud_enabled(void) { return 0; } > static inline int ioremap_pmd_enabled(void) { return 0; } > #endif /* CONFIG_HAVE_ARCH_HUGE_VMAP */ > > -static int ioremap_pte_range(pmd_t *pmd, unsigned long addr, > - unsigned long end, phys_addr_t phys_addr, pgprot_t prot, > - pgtbl_mod_mask *mask) > +static int vmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, > + phys_addr_t phys_addr, pgprot_t prot, > + pgtbl_mod_mask *mask) > { > pte_t *pte; > u64 pfn; > @@ -81,9 +81,8 @@ static int ioremap_pte_range(pmd_t *pmd, unsigned long addr, > return 0; > } > > -static int ioremap_try_huge_pmd(pmd_t *pmd, unsigned long addr, > - unsigned long end, phys_addr_t phys_addr, > - pgprot_t prot) > +static int vmap_try_huge_pmd(pmd_t *pmd, unsigned long addr, unsigned long end, > + phys_addr_t phys_addr, pgprot_t prot) > { > if (!ioremap_pmd_enabled()) > return 0; > @@ -103,9 +102,9 @@ static int ioremap_try_huge_pmd(pmd_t *pmd, unsigned long addr, > return pmd_set_huge(pmd, phys_addr, prot); > } > > -static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr, > - unsigned long end, phys_addr_t phys_addr, pgprot_t prot, > - pgtbl_mod_mask *mask) > +static int vmap_pmd_range(pud_t *pud, unsigned long addr, unsigned long end, > + phys_addr_t phys_addr, pgprot_t prot, > + pgtbl_mod_mask *mask) > { > pmd_t *pmd; > unsigned long next; > @@ -116,20 +115,19 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr, > do { > next = pmd_addr_end(addr, end); > > - if (ioremap_try_huge_pmd(pmd, addr, next, phys_addr, prot)) { > + if (vmap_try_huge_pmd(pmd, addr, next, phys_addr, prot)) { > *mask |= PGTBL_PMD_MODIFIED; > continue; > } > > - if (ioremap_pte_range(pmd, addr, next, phys_addr, prot, mask)) > + if (vmap_pte_range(pmd, addr, next, phys_addr, prot, mask)) > return -ENOMEM; > } while (pmd++, phys_addr += (next - addr), addr = next, addr != end); > return 0; > } > > -static int ioremap_try_huge_pud(pud_t *pud, unsigned long addr, > - unsigned long end, phys_addr_t phys_addr, > - pgprot_t prot) > +static int vmap_try_huge_pud(pud_t *pud, unsigned long addr, unsigned long end, > + phys_addr_t phys_addr, pgprot_t prot) > { > if (!ioremap_pud_enabled()) > return 0; > @@ -149,9 +147,9 @@ static int ioremap_try_huge_pud(pud_t *pud, unsigned long addr, > return pud_set_huge(pud, phys_addr, prot); > } > > -static inline int ioremap_pud_range(p4d_t *p4d, unsigned long addr, > - unsigned long end, phys_addr_t phys_addr, pgprot_t prot, > - pgtbl_mod_mask *mask) > +static int vmap_pud_range(p4d_t *p4d, unsigned long addr, unsigned long end, > + phys_addr_t phys_addr, pgprot_t prot, > + pgtbl_mod_mask *mask) > { > pud_t *pud; > unsigned long next; > @@ -162,20 +160,19 @@ static inline int ioremap_pud_range(p4d_t *p4d, unsigned long addr, > do { > next = pud_addr_end(addr, end); > > - if (ioremap_try_huge_pud(pud, addr, next, phys_addr, prot)) { > + if (vmap_try_huge_pud(pud, addr, next, phys_addr, prot)) { > *mask |= PGTBL_PUD_MODIFIED; > continue; > } > > - if (ioremap_pmd_range(pud, addr, next, phys_addr, prot, mask)) > + if (vmap_pmd_range(pud, addr, next, phys_addr, prot, mask)) > return -ENOMEM; > } while (pud++, phys_addr += (next - addr), addr = next, addr != end); > return 0; > } > > -static int ioremap_try_huge_p4d(p4d_t *p4d, unsigned long addr, > - unsigned long end, phys_addr_t phys_addr, > - pgprot_t prot) > +static int vmap_try_huge_p4d(p4d_t *p4d, unsigned long addr, unsigned long end, > + phys_addr_t phys_addr, pgprot_t prot) > { > if (!ioremap_p4d_enabled()) > return 0; > @@ -195,9 +192,9 @@ static int ioremap_try_huge_p4d(p4d_t *p4d, unsigned long addr, > return p4d_set_huge(p4d, phys_addr, prot); > } > > -static inline int ioremap_p4d_range(pgd_t *pgd, unsigned long addr, > - unsigned long end, phys_addr_t phys_addr, pgprot_t prot, > - pgtbl_mod_mask *mask) > +static int vmap_p4d_range(pgd_t *pgd, unsigned long addr, unsigned long end, > + phys_addr_t phys_addr, pgprot_t prot, > + pgtbl_mod_mask *mask) > { > p4d_t *p4d; > unsigned long next; > @@ -208,19 +205,19 @@ static inline int ioremap_p4d_range(pgd_t *pgd, unsigned long addr, > do { > next = p4d_addr_end(addr, end); > > - if (ioremap_try_huge_p4d(p4d, addr, next, phys_addr, prot)) { > + if (vmap_try_huge_p4d(p4d, addr, next, phys_addr, prot)) { > *mask |= PGTBL_P4D_MODIFIED; > continue; > } > > - if (ioremap_pud_range(p4d, addr, next, phys_addr, prot, mask)) > + if (vmap_pud_range(p4d, addr, next, phys_addr, prot, mask)) > return -ENOMEM; > } while (p4d++, phys_addr += (next - addr), addr = next, addr != end); > return 0; > } > > -int ioremap_page_range(unsigned long addr, > - unsigned long end, phys_addr_t phys_addr, pgprot_t prot) > +static int vmap_range(unsigned long addr, unsigned long end, > + phys_addr_t phys_addr, pgprot_t prot) > { > pgd_t *pgd; > unsigned long start; > @@ -235,8 +232,7 @@ int ioremap_page_range(unsigned long addr, > pgd = pgd_offset_k(addr); > do { > next = pgd_addr_end(addr, end); > - err = ioremap_p4d_range(pgd, addr, next, phys_addr, prot, > - &mask); > + err = vmap_p4d_range(pgd, addr, next, phys_addr, prot, &mask); > if (err) > break; > } while (pgd++, phys_addr += (next - addr), addr = next, addr != end); > @@ -249,6 +245,12 @@ int ioremap_page_range(unsigned long addr, > return err; > } > > +int ioremap_page_range(unsigned long addr, > + unsigned long end, phys_addr_t phys_addr, pgprot_t prot) > +{ > + return vmap_range(addr, end, phys_addr, prot); > +} > + > #ifdef CONFIG_GENERIC_IOREMAP > void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot) > { >