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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 A05E0C388F9 for ; Tue, 3 Nov 2020 13:31:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5121820786 for ; Tue, 3 Nov 2020 13:31:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="S93NKY5P" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729350AbgKCNbj (ORCPT ); Tue, 3 Nov 2020 08:31:39 -0500 Received: from mx2.suse.de ([195.135.220.15]:44416 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729244AbgKCNbi (ORCPT ); Tue, 3 Nov 2020 08:31:38 -0500 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=1604410296; h=from:from:reply-to:subject:subject: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=iuB4NnPbCNxEJKoK73LE81+FPvuj8MX14VguYDWoZjA=; b=S93NKY5PBCcADiF36VQw6k2iNHJY0++ibNyEmGO3ntE/HluAi4Zf7I0X+0G8bSz/zl2Bfy HCvWsDi6ZtDNWR0t96fBo2JaHQM3GSuXfVGrQLOFWxxXBAD+I0rGMbbmQ6/42UEHXLK6i8 ltxruHOr2vZyR2kjN6sl9UWHMJrUHJM= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id B851AAB0E; Tue, 3 Nov 2020 13:31:36 +0000 (UTC) From: Qu Wenruo To: linux-btrfs@vger.kernel.org Cc: Nikolay Borisov , David Sterba Subject: [PATCH 07/32] btrfs: extent_io: make btrfs_fs_info::buffer_radix to take sector size devided values Date: Tue, 3 Nov 2020 21:30:43 +0800 Message-Id: <20201103133108.148112-8-wqu@suse.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201103133108.148112-1-wqu@suse.com> References: <20201103133108.148112-1-wqu@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org For subpage sized sector size support, one page can contain mutliple tree blocks, thus we can no longer use (eb->start >> PAGE_SHIFT) any more, or we can easily get extent buffer doesn't belongs to the bytenr. This patch will use (extent_buffer::start >> sectorsize_bits) as index for radix tree so that we can get correct extent buffer for subpage size support. While still keep the behavior same for regular sector size. Signed-off-by: Qu Wenruo Reviewed-by: Nikolay Borisov Signed-off-by: David Sterba --- fs/btrfs/extent_io.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 092d9f69abb2..a90cdcf01b7f 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -5121,7 +5121,7 @@ struct extent_buffer *find_extent_buffer(struct btrfs_fs_info *fs_info, rcu_read_lock(); eb = radix_tree_lookup(&fs_info->buffer_radix, - start >> PAGE_SHIFT); + start >> fs_info->sectorsize_bits); if (eb && atomic_inc_not_zero(&eb->refs)) { rcu_read_unlock(); /* @@ -5173,7 +5173,7 @@ struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info, } spin_lock(&fs_info->buffer_lock); ret = radix_tree_insert(&fs_info->buffer_radix, - start >> PAGE_SHIFT, eb); + start >> eb->fs_info->sectorsize_bits, eb); spin_unlock(&fs_info->buffer_lock); radix_tree_preload_end(); if (ret == -EEXIST) { @@ -5281,7 +5281,7 @@ struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info, spin_lock(&fs_info->buffer_lock); ret = radix_tree_insert(&fs_info->buffer_radix, - start >> PAGE_SHIFT, eb); + start >> fs_info->sectorsize_bits, eb); spin_unlock(&fs_info->buffer_lock); radix_tree_preload_end(); if (ret == -EEXIST) { @@ -5337,7 +5337,7 @@ static int release_extent_buffer(struct extent_buffer *eb) spin_lock(&fs_info->buffer_lock); radix_tree_delete(&fs_info->buffer_radix, - eb->start >> PAGE_SHIFT); + eb->start >> fs_info->sectorsize_bits); spin_unlock(&fs_info->buffer_lock); } else { spin_unlock(&eb->refs_lock); -- 2.29.2