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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 1DA15C433B4 for ; Fri, 30 Apr 2021 05:58:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 00B6061480 for ; Fri, 30 Apr 2021 05:58:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230280AbhD3F7h (ORCPT ); Fri, 30 Apr 2021 01:59:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:52800 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230253AbhD3F7g (ORCPT ); Fri, 30 Apr 2021 01:59:36 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id D2D8361463; Fri, 30 Apr 2021 05:58:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1619762327; bh=5+w/tQjelFNR06I9eDuw/gfKPbyNpjZbxbZubCt4wA4=; h=Date:From:To:Subject:In-Reply-To:From; b=vmlabJLWJ12GIaYZPDK51LdY80fQkVq3eqDfYaN/Utz9CkfBbUOvlFLF5wDJAcxTQ degjvHwOzYnk3mvIMIdfAb2inbKP/a68rO3bU+oZDjq7BKO9Mw1RbQES6BVi9uafqS Kb5hhkNxAZJH7PlAyw8RPOlArwd9RLGc3Ipfa0lk= Date: Thu, 29 Apr 2021 22:58:46 -0700 From: Andrew Morton To: akpm@linux-foundation.org, bp@alien8.de, catalin.marinas@arm.com, dingtianhong@huawei.com, hch@lst.de, hpa@zytor.com, linmiaohe@huawei.com, linux-mm@kvack.org, linux@armlinux.org.uk, mingo@redhat.com, mm-commits@vger.kernel.org, mpe@ellerman.id.au, npiggin@gmail.com, tglx@linutronix.de, torvalds@linux-foundation.org, urezki@gmail.com, will@kernel.org Subject: [patch 108/178] mm/vmalloc: add vmap_range_noflush variant Message-ID: <20210430055846.AKiMboLau%akpm@linux-foundation.org> In-Reply-To: <20210429225251.02b6386d21b69255b4f6c163@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: Nicholas Piggin Subject: mm/vmalloc: add vmap_range_noflush variant As a side-effect, the order of flush_cache_vmap() and arch_sync_kernel_mappings() calls are switched, but that now matches the other callers in this file. Link: https://lkml.kernel.org/r/20210317062402.533919-13-npiggin@gmail.com Signed-off-by: Nicholas Piggin Reviewed-by: Christoph Hellwig Cc: Borislav Petkov Cc: Catalin Marinas Cc: Ding Tianhong Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Miaohe Lin Cc: Michael Ellerman Cc: Russell King Cc: Thomas Gleixner Cc: Uladzislau Rezki (Sony) Cc: Will Deacon Signed-off-by: Andrew Morton --- mm/vmalloc.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) --- a/mm/vmalloc.c~mm-vmalloc-add-vmap_range_noflush-variant +++ a/mm/vmalloc.c @@ -240,7 +240,7 @@ static int vmap_p4d_range(pgd_t *pgd, un return 0; } -int vmap_range(unsigned long addr, unsigned long end, +static int vmap_range_noflush(unsigned long addr, unsigned long end, phys_addr_t phys_addr, pgprot_t prot, unsigned int max_page_shift) { @@ -263,13 +263,23 @@ int vmap_range(unsigned long addr, unsig break; } while (pgd++, phys_addr += (next - addr), addr = next, addr != end); - flush_cache_vmap(start, end); - if (mask & ARCH_PAGE_TABLE_SYNC_MASK) arch_sync_kernel_mappings(start, end); return err; } + +int vmap_range(unsigned long addr, unsigned long end, + phys_addr_t phys_addr, pgprot_t prot, + unsigned int max_page_shift) +{ + int err; + + err = vmap_range_noflush(addr, end, phys_addr, prot, max_page_shift); + flush_cache_vmap(addr, end); + + return err; +} static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, pgtbl_mod_mask *mask) _