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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3DDCCC433FE for ; Tue, 5 Apr 2022 15:02:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240017AbiDEPDt (ORCPT ); Tue, 5 Apr 2022 11:03:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41358 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1391998AbiDENt3 (ORCPT ); Tue, 5 Apr 2022 09:49:29 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D9B13B7C4 for ; Tue, 5 Apr 2022 05:48:51 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 3D5EE1F745 for ; Tue, 5 Apr 2022 12:48:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1649162930; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dm9wZpHzLRu1m2ubYA86QwPouRFMqU1XtBiS4Cecasc=; b=NVTTu1hf2lsNCBSpFCPFC3w9uFGlBOhqmcQzx4sG/6lZaiOfwS908M6EION6BfB/ZVC16K Mv2xx6rIiYKKyIuQcV3aiez7+rolw8hSJ5vyE6V09A8EDPCTPFYHRrazMHT90h0On0etK9 n9h4IcYXuj6D48tcoHFem2jmJr0Tqf8= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 8F42D13A04 for ; Tue, 5 Apr 2022 12:48:49 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id OKcoFrE6TGJLGgAAMHmgww (envelope-from ) for ; Tue, 05 Apr 2022 12:48:49 +0000 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Subject: [PATCH 1/8] btrfs-progs: remove the unnecessary BTRFS_SUPER_INFO_OFFSET path for tree block read Date: Tue, 5 Apr 2022 20:48:23 +0800 Message-Id: <1011cb461b7520030b1ea1eb5bb02804460a4d1c.1649162174.git.wqu@suse.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org We used to use read_whole_eb() to read super block, but it's no longer the case (so long that I can not even find out which commit did the conversion). Thus there is no need for read_whole_eb() to handle super block read anymore. Signed-off-by: Qu Wenruo --- kernel-shared/disk-io.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel-shared/disk-io.c b/kernel-shared/disk-io.c index 2a9b2681a043..f2492547f77d 100644 --- a/kernel-shared/disk-io.c +++ b/kernel-shared/disk-io.c @@ -302,8 +302,7 @@ int read_whole_eb(struct btrfs_fs_info *info, struct extent_buffer *eb, int mirr read_len = bytes_left; device = NULL; - if (!info->on_restoring && - eb->start != BTRFS_SUPER_INFO_OFFSET) { + if (!info->on_restoring) { ret = btrfs_map_block(info, READ, eb->start + offset, &read_len, &multi, mirror, NULL); if (ret) { -- 2.35.1