From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: David Hildenbrand Subject: [PATCH v1 4/9] riscv/vdso: don't clear PG_reserved Date: Fri, 14 Dec 2018 12:10:09 +0100 Message-Id: <20181214111014.15672-5-david@redhat.com> In-Reply-To: <20181214111014.15672-1-david@redhat.com> References: <20181214111014.15672-1-david@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org List-Archive: To: linux-mm@kvack.org Cc: linux-s390@vger.kernel.org, Albert Ou , Andrew Morton , David Hildenbrand , Palmer Dabbelt , linux-kernel@vger.kernel.org, Matthew Wilcox , Michal Hocko , linux-m68k@lists.linux-m68k.org, linux-mediatek@lists.infradead.org, linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, Tobias Klauser , linux-arm-kernel@lists.infradead.org List-ID: The VDSO is part of the kernel image and therefore the struct pages are marked as reserved during boot. As we install a special mapping, the actual struct pages will never be exposed to MM via the page tables. We can therefore leave the pages marked as reserved. Cc: Palmer Dabbelt Cc: Albert Ou Cc: Tobias Klauser Cc: Andrew Morton Cc: Michal Hocko Cc: Matthew Wilcox Acked-by: Palmer Dabbelt Signed-off-by: David Hildenbrand --- arch/riscv/kernel/vdso.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/riscv/kernel/vdso.c b/arch/riscv/kernel/vdso.c index 582cb153eb24..0cd044122234 100644 --- a/arch/riscv/kernel/vdso.c +++ b/arch/riscv/kernel/vdso.c @@ -54,7 +54,6 @@ static int __init vdso_init(void) struct page *pg; pg = virt_to_page(vdso_start + (i << PAGE_SHIFT)); - ClearPageReserved(pg); vdso_pagelist[i] = pg; } vdso_pagelist[i] = virt_to_page(vdso_data); -- 2.17.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel