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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 B2948C04EBA for ; Tue, 27 Nov 2018 16:00:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 845D6213A2 for ; Tue, 27 Nov 2018 16:00:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 845D6213A2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-btrfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730444AbeK1C6n (ORCPT ); Tue, 27 Nov 2018 21:58:43 -0500 Received: from mx2.suse.de ([195.135.220.15]:54478 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730418AbeK1C6n (ORCPT ); Tue, 27 Nov 2018 21:58:43 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id AE6B3AF74 for ; Tue, 27 Nov 2018 16:00:20 +0000 (UTC) From: Johannes Thumshirn To: David Sterba Cc: Linux BTRFS Mailinglist , Johannes Thumshirn Subject: [PATCH 2/3] btrfs: use offset_in_page for start_offset in map_private_extent_buffer() Date: Tue, 27 Nov 2018 17:00:09 +0100 Message-Id: <20181127160010.18123-3-jthumshirn@suse.de> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20181127160010.18123-1-jthumshirn@suse.de> References: <20181127160010.18123-1-jthumshirn@suse.de> Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org In map_private_extent_buffer() use offset_in_page() to initialize 'start_offset' instead of open-coding it. Signed-off-by: Johannes Thumshirn --- fs/btrfs/extent_io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 7aafdec49dc3..85cd3975c680 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -5383,7 +5383,7 @@ int map_private_extent_buffer(const struct extent_buffer *eb, size_t offset; char *kaddr; struct page *p; - size_t start_offset = eb->start & ((u64)PAGE_SIZE - 1); + size_t start_offset = offset_in_page(eb->start); unsigned long i = (start_offset + start) >> PAGE_SHIFT; unsigned long end_i = (start_offset + start + min_len - 1) >> PAGE_SHIFT; -- 2.16.4