From patchwork Sat Dec 17 01:54:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baoquan He X-Patchwork-Id: 13075753 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B434C4332F for ; Sat, 17 Dec 2022 01:56:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230295AbiLQB4w (ORCPT ); Fri, 16 Dec 2022 20:56:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230080AbiLQB4Y (ORCPT ); Fri, 16 Dec 2022 20:56:24 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DCFCD67DA2 for ; Fri, 16 Dec 2022 17:55:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1671242129; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TQCOjBquH4pkVeAMaXmqGzrHd+dzzqTdFcVytK4qewc=; b=Y2zamofwLIdKKvayT+UhtVtHVJ4Bxj/TycTAK+GlTph6OFf6NnLiXBZiDsUkobYrOAz23u +fII+g09tBsMG+DgR9upCPYpkyYd9IZwBCGY8iPkuL7xHO7WUsFlxmH9FdlHO1fzoHJwZa UIoWDwqroELquzPx7bD6f7ye+XBC970= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-182-GWwgl6saO368hRoPTIHngg-1; Fri, 16 Dec 2022 20:55:25 -0500 X-MC-Unique: GWwgl6saO368hRoPTIHngg-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id B12A2811E9C; Sat, 17 Dec 2022 01:55:24 +0000 (UTC) Received: from MiWiFi-R3L-srv.redhat.com (ovpn-12-34.pek2.redhat.com [10.72.12.34]) by smtp.corp.redhat.com (Postfix) with ESMTP id 46C0F400F5A; Sat, 17 Dec 2022 01:55:18 +0000 (UTC) From: Baoquan He To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, urezki@gmail.com, stephen.s.brennan@oracle.com, willy@infradead.org, akpm@linux-foundation.org, hch@infradead.org, Baoquan He , Yoshinori Sato , Rich Felker , Greg Kroah-Hartman , linux-sh@vger.kernel.org Subject: [PATCH v2 7/7] sh: mm: set VM_IOREMAP flag to the vmalloc area Date: Sat, 17 Dec 2022 09:54:35 +0800 Message-Id: <20221217015435.73889-8-bhe@redhat.com> In-Reply-To: <20221217015435.73889-1-bhe@redhat.com> References: <20221217015435.73889-1-bhe@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Currently, for vmalloc areas with flag VM_IOREMAP set, except of the specific alignment clamping in __get_vm_area_node(), they will be 1) Shown as ioremap in /proc/vmallocinfo; 2) Ignored by /proc/kcore reading via vread() So for the ioremap in __sq_remap() of sh, we should set VM_IOREMAP in flag to make it handled correctly as above. Signed-off-by: Baoquan He Cc: Yoshinori Sato Cc: Rich Felker Cc: Greg Kroah-Hartman Cc: linux-sh@vger.kernel.org --- arch/sh/kernel/cpu/sh4/sq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c index a76b94e41e91..27f2e3da5aa2 100644 --- a/arch/sh/kernel/cpu/sh4/sq.c +++ b/arch/sh/kernel/cpu/sh4/sq.c @@ -103,7 +103,7 @@ static int __sq_remap(struct sq_mapping *map, pgprot_t prot) #if defined(CONFIG_MMU) struct vm_struct *vma; - vma = __get_vm_area_caller(map->size, VM_ALLOC, map->sq_addr, + vma = __get_vm_area_caller(map->size, VM_IOREMAP, map->sq_addr, SQ_ADDRMAX, __builtin_return_address(0)); if (!vma) return -ENOMEM;