From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 16724384 for ; Mon, 1 Jan 2024 00:17:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="aT4n0518" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9800FC433C7; Mon, 1 Jan 2024 00:17:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1704068222; bh=ovGpr6HXSx1ZuyS7GEjXmiRAX2Szi/yziGmk6ES3pLE=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=aT4n0518IUX4qhC/O8WAECfGCqBsT90CqUD5isIU6wAyWNmN6fxDyiM1EmzuisOCl SrPeMba7Ulst5XN3irwtD11GMcf//xppcC82K6DjKinlNX56eUcT0fcGYMQIzKFbgK tdkQyohMVqbaw39t8C63aXzhG9PbmJgD1woaLmX6OhWkXTWMCmWwXLQQ+SzpgcYY4y /fiHfWvl/qVFN9gXn5iQdYgyWHKHQj0bbMSdmdyQu+vn6Q8Id+jKiYKZ1l3+G5NUQv QXo4szxa/myqJawh3KPuHi7sjlQt7aVLCXQdlTO5CWKEuyW0bXuXdPBhcKvaDYA+0F yD+GmQkGw9qnw== Date: Sun, 31 Dec 2023 16:17:02 +9900 Subject: [PATCH 25/47] xfs_db: copy the realtime rmap btree From: "Darrick J. Wong" To: cem@kernel.org, djwong@kernel.org Cc: linux-xfs@vger.kernel.org Message-ID: <170405015646.1815505.17570592286285852411.stgit@frogsfrogsfrogs> In-Reply-To: <170405015275.1815505.16749821217116487639.stgit@frogsfrogsfrogs> References: <170405015275.1815505.16749821217116487639.stgit@frogsfrogsfrogs> User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Darrick J. Wong Copy the realtime rmapbt when we're metadumping the filesystem. Signed-off-by: Darrick J. Wong --- db/metadump.c | 129 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 129 insertions(+) diff --git a/db/metadump.c b/db/metadump.c index ccf7b89ccd5..c6f6bf1ea17 100644 --- a/db/metadump.c +++ b/db/metadump.c @@ -589,6 +589,55 @@ copy_rmap_btree( return scan_btree(agno, root, levels, TYP_RMAPBT, agf, scanfunc_rmapbt); } +static int +scanfunc_rtrmapbt( + struct xfs_btree_block *block, + xfs_agnumber_t agno, + xfs_agblock_t agbno, + int level, + typnm_t btype, + void *arg) +{ + xfs_rtrmap_ptr_t *pp; + int i; + int numrecs; + + if (level == 0) + return 1; + + numrecs = be16_to_cpu(block->bb_numrecs); + if (numrecs > mp->m_rtrmap_mxr[1]) { + if (metadump.show_warnings) + print_warning("invalid numrecs (%u) in %s block %u/%u", + numrecs, typtab[btype].name, agno, agbno); + return 1; + } + + pp = xfs_rtrmap_ptr_addr(block, 1, mp->m_rtrmap_mxr[1]); + for (i = 0; i < numrecs; i++) { + xfs_agnumber_t pagno; + xfs_agblock_t pbno; + + pagno = XFS_FSB_TO_AGNO(mp, get_unaligned_be64(&pp[i])); + pbno = XFS_FSB_TO_AGBNO(mp, get_unaligned_be64(&pp[i])); + + if (pbno == 0 || pbno > mp->m_sb.sb_agblocks || + pagno > mp->m_sb.sb_agcount) { + if (metadump.show_warnings) + print_warning("invalid block number (%u/%u) " + "in inode %llu %s block %u/%u", + pagno, pbno, + (unsigned long long)metadump.cur_ino, + typtab[btype].name, agno, agbno); + continue; + } + if (!scan_btree(pagno, pbno, level, btype, arg, + scanfunc_rtrmapbt)) + return 0; + } + return 1; +} + static int scanfunc_refcntbt( struct xfs_btree_block *block, @@ -2319,6 +2368,83 @@ process_exinode( whichfork), nex, itype, is_meta); } +static int +process_rtrmap( + struct xfs_dinode *dip, + typnm_t itype) +{ + struct xfs_rtrmap_root *dib; + int i; + xfs_rtrmap_ptr_t *pp; + int level; + int nrecs; + int maxrecs; + int whichfork; + typnm_t btype; + + if (itype == TYP_ATTR && metadump.show_warnings) { + print_warning("ignoring rtrmapbt root in inode %llu attr fork", + (unsigned long long)metadump.cur_ino); + return 1; + } + + whichfork = XFS_DATA_FORK; + btype = TYP_RTRMAPBT; + + dib = (struct xfs_rtrmap_root *)XFS_DFORK_PTR(dip, whichfork); + level = be16_to_cpu(dib->bb_level); + nrecs = be16_to_cpu(dib->bb_numrecs); + + if (level > mp->m_rtrmap_maxlevels) { + if (metadump.show_warnings) + print_warning("invalid level (%u) in inode %lld %s " + "root", level, + (unsigned long long)metadump.cur_ino, + typtab[btype].name); + return 1; + } + + if (level == 0) + return 1; + + maxrecs = libxfs_rtrmapbt_droot_maxrecs( + XFS_DFORK_SIZE(dip, mp, whichfork), + false); + if (nrecs > maxrecs) { + if (metadump.show_warnings) + print_warning("invalid numrecs (%u) in inode %lld %s " + "root", nrecs, + (unsigned long long)metadump.cur_ino, + typtab[btype].name); + return 1; + } + + pp = xfs_rtrmap_droot_ptr_addr(dib, 1, maxrecs); + for (i = 0; i < nrecs; i++) { + xfs_agnumber_t ag; + xfs_agblock_t bno; + + ag = XFS_FSB_TO_AGNO(mp, get_unaligned_be64(&pp[i])); + bno = XFS_FSB_TO_AGBNO(mp, get_unaligned_be64(&pp[i])); + + if (bno == 0 || bno > mp->m_sb.sb_agblocks || + ag > mp->m_sb.sb_agcount) { + if (metadump.show_warnings) + print_warning("invalid block number (%u/%u) " + "in inode %llu %s root", ag, + bno, + (unsigned long long)metadump.cur_ino, + typtab[btype].name); + continue; + } + + if (!scan_btree(ag, bno, level, btype, &itype, + scanfunc_rtrmapbt)) + return 0; + } + return 1; +} + static int process_inode_data( struct xfs_dinode *dip, @@ -2363,6 +2489,9 @@ process_inode_data( case XFS_DINODE_FMT_BTREE: return process_btinode(dip, itype); + + case XFS_DINODE_FMT_RMAP: + return process_rtrmap(dip, itype); } return 1; }