From patchwork Wed Mar 4 10:28:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Thomas_Hellstr=C3=B6m_=28Intel=29?= X-Patchwork-Id: 11419769 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6C7EB1395 for ; Wed, 4 Mar 2020 10:29:07 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4B10A21775 for ; Wed, 4 Mar 2020 10:29:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=shipmail.org header.i=@shipmail.org header.b="QHjO1csv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4B10A21775 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=shipmail.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 227B16EB08; Wed, 4 Mar 2020 10:28:58 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from pio-pvt-msa1.bahnhof.se (pio-pvt-msa1.bahnhof.se [79.136.2.40]) by gabe.freedesktop.org (Postfix) with ESMTPS id BF0EF6EB08 for ; Wed, 4 Mar 2020 10:28:56 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by pio-pvt-msa1.bahnhof.se (Postfix) with ESMTP id 5670B3F6D0; Wed, 4 Mar 2020 11:28:55 +0100 (CET) Authentication-Results: pio-pvt-msa1.bahnhof.se; dkim=pass (1024-bit key; unprotected) header.d=shipmail.org header.i=@shipmail.org header.b="QHjO1csv"; dkim-atps=neutral X-Virus-Scanned: Debian amavisd-new at bahnhof.se X-Spam-Flag: NO X-Spam-Score: -2.099 X-Spam-Level: X-Spam-Status: No, score=-2.099 tagged_above=-999 required=6.31 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from pio-pvt-msa1.bahnhof.se ([127.0.0.1]) by localhost (pio-pvt-msa1.bahnhof.se [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id neqJkKEP4O_K; Wed, 4 Mar 2020 11:28:54 +0100 (CET) Received: from mail1.shipmail.org (h-205-35.A357.priv.bahnhof.se [155.4.205.35]) (Authenticated sender: mb878879) by pio-pvt-msa1.bahnhof.se (Postfix) with ESMTPA id 613173F6C5; Wed, 4 Mar 2020 11:28:48 +0100 (CET) Received: from localhost.localdomain.localdomain (h-205-35.A357.priv.bahnhof.se [155.4.205.35]) by mail1.shipmail.org (Postfix) with ESMTPSA id B38913602F7; Wed, 4 Mar 2020 11:28:47 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=shipmail.org; s=mail; t=1583317727; bh=8QpzQ2ublJJs8/27qDaTvHB44L3rciEGT/yi+WqQA20=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QHjO1csvivWThNGKB74IK9JcfLAR5J1YxsnXZUifpHo6+9dK7yplAhCKcc7N9BvYV DlK7qfzQa0kqwYYIiwNmlokdd12gnHMimcVGZuPgDEwxXVhZUhlnGvdd7i7jH8YnyN 6z+wateliLyBG30/VQHnGm2zVPpyV7uU2D8y8d+g= From: =?utf-8?q?Thomas_Hellstr=C3=B6m_=28VMware=29?= To: linux-mm@kvack.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 1/9] fs: Constify vma argument to vma_is_dax Date: Wed, 4 Mar 2020 11:28:32 +0100 Message-Id: <20200304102840.2801-2-thomas_os@shipmail.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200304102840.2801-1-thomas_os@shipmail.org> References: <20200304102840.2801-1-thomas_os@shipmail.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Hellstrom , Michal Hocko , pv-drivers@vmware.com, Roland Scheidegger , Dan Williams , Ralph Campbell , "Matthew Wilcox \(Oracle\)" , =?utf-8?b?SsOpcsO0bWUg?= =?utf-8?b?R2xpc3Nl?= , linux-graphics-maintainer@vmware.com, Andrew Morton , =?utf-8?q?Christian_K=C3=B6nig?= , "Kirill A. Shutemov" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Thomas Hellstrom The function is used by upcoming vma_is_special_huge() with which we want to use a const vma argument. Since for vma_is_dax() the vma argument is only dereferenced for reading, constify it. Cc: Andrew Morton Cc: Michal Hocko Cc: "Matthew Wilcox (Oracle)" Cc: "Kirill A. Shutemov" Cc: Ralph Campbell Cc: "Jérôme Glisse" Cc: "Christian König" Cc: Dan Williams Signed-off-by: Thomas Hellstrom Reviewed-by: Roland Scheidegger Acked-by: Christian König --- include/linux/fs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index 3cd4fe6b845e..2b38ce5b73ad 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -3391,7 +3391,7 @@ static inline bool io_is_direct(struct file *filp) return (filp->f_flags & O_DIRECT) || IS_DAX(filp->f_mapping->host); } -static inline bool vma_is_dax(struct vm_area_struct *vma) +static inline bool vma_is_dax(const struct vm_area_struct *vma) { return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host); }