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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 22D0BC4707F for ; Tue, 25 May 2021 17:11:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0748D61417 for ; Tue, 25 May 2021 17:11:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233459AbhEYRMm (ORCPT ); Tue, 25 May 2021 13:12:42 -0400 Received: from mx2.suse.de ([195.135.220.15]:34132 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232224AbhEYRMl (ORCPT ); Tue, 25 May 2021 13:12:41 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1621962671; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hr8Mg50C9dz3BOOX0XVvK0dkoEhcXIp83ejOodMDMjE=; b=tdsk6Si6L4/cbECJV6Jqs4lGNOZvF1rr9Zeob3cwMxn5ues5jrAX3A81QOzEkThNhAlafk gZYtkpyapz8TW/DzVaQOYmrH/9goV3ok83PFXxRiJKAIjoV3K8MaCacmOBSN46Nokkqz69 OrUIFvTSJxtaOkuZl87AhjHtx9bgjzI= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 19A8CAEEB; Tue, 25 May 2021 17:11:11 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id AECF4DA70B; Tue, 25 May 2021 19:08:34 +0200 (CEST) From: David Sterba To: linux-btrfs@vger.kernel.org Cc: David Sterba Subject: [PATCH 5/9] btrfs: document byte swap optimization of root_item::flags accessors Date: Tue, 25 May 2021 19:08:34 +0200 Message-Id: X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Signed-off-by: David Sterba --- fs/btrfs/ctree.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index d78cb2d89d7e..a3b628ea4d64 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2216,11 +2216,13 @@ BTRFS_SETGET_STACK_FUNCS(root_rtransid, struct btrfs_root_item, static inline bool btrfs_root_readonly(const struct btrfs_root *root) { + /* Byte-swap the constant at compile time, root_item::flags is LE */ return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_RDONLY)) != 0; } static inline bool btrfs_root_dead(const struct btrfs_root *root) { + /* Byte-swap the constant at compile time, root_item::flags is LE */ return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_DEAD)) != 0; } -- 2.29.2