From patchwork Tue Jun 8 16:05:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 455925 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT 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 D7284C48BCD for ; Tue, 8 Jun 2021 16:06:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B7C5961182 for ; Tue, 8 Jun 2021 16:06:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231580AbhFHQIT (ORCPT ); Tue, 8 Jun 2021 12:08:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52946 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231165AbhFHQIR (ORCPT ); Tue, 8 Jun 2021 12:08:17 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 039A4C061787; Tue, 8 Jun 2021 09:06:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=mxjphJIexdyUP+LgP6QQe1/DAIfJHdL4g4Vg5OxQMzY=; b=hNgm/XKkGW6qS50D9qILkbSbA3 ag1xUOBkEaBqGY3BiVOKZGE5bCfd+z0l6QZhFmyK7gOFzLVvRsu/qsETBYA3TnzLaS+oil4N6+zTS NTQMtE/JDlzwR/trspEmleh/87WlxYX4msxtg+R1WobU8kdnPgrsEJy3QCzmAc1dkhJ2L9gNJAyLO G6CxwAp9rJckWNufxaRejzebCCFvkRMee7p07BeU94Osh3HVMv8jPxAfv7X8MPcbd7oKcH0tkJLzT 36Voi00g3IQrTciGkP9mUs3b4G/CpF92BIsdK9SLCNipoMLXYiBiraJ7HumR/oOascVon2CdJt5tP DMfEIv9A==; Received: from [2001:4bb8:192:ff5f:74ed:7c4f:a5ee:8dcb] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1lqeF0-009Ra6-Pg; Tue, 08 Jun 2021 16:06:11 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Thomas Bogendoerfer , Geoff Levand , Ilya Dryomov , Dongsheng Yang , Mike Snitzer , Ira Weiny , dm-devel@redhat.com, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, ceph-devel@vger.kernel.org Subject: [PATCH 01/16] mm: use kmap_local_page in memzero_page Date: Tue, 8 Jun 2021 18:05:48 +0200 Message-Id: <20210608160603.1535935-2-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210608160603.1535935-1-hch@lst.de> References: <20210608160603.1535935-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org No need for kmap_atomic here. Signed-off-by: Christoph Hellwig --- include/linux/highmem.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/highmem.h b/include/linux/highmem.h index 832b49b50c7b..0dc0451cf1d1 100644 --- a/include/linux/highmem.h +++ b/include/linux/highmem.h @@ -334,9 +334,9 @@ static inline void memcpy_to_page(struct page *page, size_t offset, static inline void memzero_page(struct page *page, size_t offset, size_t len) { - char *addr = kmap_atomic(page); + char *addr = kmap_local_page(page); memset(addr + offset, 0, len); - kunmap_atomic(addr); + kunmap_local(addr); } #endif /* _LINUX_HIGHMEM_H */