From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp2130.oracle.com ([141.146.126.79]:57536 "EHLO aserp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726270AbfBFSXm (ORCPT ); Wed, 6 Feb 2019 13:23:42 -0500 Date: Wed, 6 Feb 2019 10:23:31 -0800 From: "Darrick J. Wong" Subject: Re: [PATCH v3 0/9] xfs: fix [f]inobt magic value verification Message-ID: <20190206182331.GW7991@magnolia> References: <20190204145231.47034-1-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190204145231.47034-1-bfoster@redhat.com> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: Brian Foster Cc: linux-xfs@vger.kernel.org On Mon, Feb 04, 2019 at 09:52:22AM -0500, Brian Foster wrote: > Hi all, > > Here's v3 of the verifier magic value fixup series. This version adds a > couple more patches to separate and convert the allocation btree buffer > verifier to the new magic value verification scheme. The allocbt is > similar to the inobt verifier in that it currently uses the same > verifier code for multiple magic values. This change allows the verifier > to ensure that bnobt/cntbt blocks have the appropriate magic value for > v4 and v5 filesytems. The only other change from v2 is a fixup to > include parameter names in function declarations. > > Thoughts, reviews, flames appreciated. I noticed that inode and quota buf_ops still don't have magic numbers in them. I think it's fairly trivial to add them to the buffer ops definitions, though actually using them looks a little tricky for dquots. I'll send along a couple of patches to add that and clean up some of the repair code magic handling. --D > Brian > > v3: > - Fix function declarations to include parameter names. > - Convert allocbt buffer verifier. > v2: https://marc.info/?l=linux-xfs&m=154894958207167&w=2 > - Include djwong's ->b_ops patch w/ modifications. > - Added patch to fix up existing cpu endian magic checks, fold in typo > fix. > - Replace static inline magic verifier helper with out of line variant, > kill macro. > - Store on-disk byte order magics in ->b_ops. > - Added patch to refactor common xfs_da3_blkinfo checks. > v1: https://marc.info/?l=linux-xfs&m=154878684317178&w=2 > - Remove endian conversion from helper. > - Drop finobt bad magic mitigation patch. > - Additional verifier magic fixups. > - Add verifier name typo fixup. > rfcv2: https://marc.info/?l=linux-xfs&m=154868884311668&w=2 > - Split off finobt verifier into separate patch, assign it > appropriately. > - Created helpers for xfs_buf_ops magic value verification. > - Added error mitigation patch for problematic finobt blocks. > rfcv1: https://marc.info/?l=linux-xfs&m=154834528212262&w=2 > > Brian Foster (8): > xfs: always check magic values in on-disk byte order > xfs: create a separate finobt verifier > xfs: distinguish between inobt and finobt magic values > xfs: split up allocation btree verifier > xfs: distinguish between bnobt and cntbt magic values > xfs: use verifier magic field in dir2 leaf verifiers > xfs: miscellaneous verifier magic value fixups > xfs: factor xfs_da3_blkinfo verification into common helper > > Darrick J. Wong (1): > xfs: set buffer ops when repair probes for btree type > > fs/xfs/libxfs/xfs_ag.c | 6 +- > fs/xfs/libxfs/xfs_alloc.c | 12 ++-- > fs/xfs/libxfs/xfs_alloc_btree.c | 74 ++++++++++----------- > fs/xfs/libxfs/xfs_attr_leaf.c | 21 ++---- > fs/xfs/libxfs/xfs_attr_remote.c | 8 ++- > fs/xfs/libxfs/xfs_bmap_btree.c | 13 ++-- > fs/xfs/libxfs/xfs_da_btree.c | 50 ++++++++++----- > fs/xfs/libxfs/xfs_da_format.h | 3 + > fs/xfs/libxfs/xfs_dir2_block.c | 10 +-- > fs/xfs/libxfs/xfs_dir2_data.c | 12 ++-- > fs/xfs/libxfs/xfs_dir2_leaf.c | 100 ++++++----------------------- > fs/xfs/libxfs/xfs_dir2_node.c | 11 ++-- > fs/xfs/libxfs/xfs_ialloc.c | 3 +- > fs/xfs/libxfs/xfs_ialloc_btree.c | 25 +++++--- > fs/xfs/libxfs/xfs_inode_buf.c | 2 +- > fs/xfs/libxfs/xfs_refcount_btree.c | 3 +- > fs/xfs/libxfs/xfs_rmap_btree.c | 3 +- > fs/xfs/libxfs/xfs_sb.c | 5 +- > fs/xfs/libxfs/xfs_shared.h | 4 +- > fs/xfs/libxfs/xfs_symlink_remote.c | 3 +- > fs/xfs/scrub/agheader_repair.c | 6 +- > fs/xfs/scrub/repair.c | 11 +++- > fs/xfs/xfs_buf.c | 41 ++++++++++-- > fs/xfs/xfs_buf.h | 4 +- > fs/xfs/xfs_log_recover.c | 12 ++-- > fs/xfs/xfs_trans_buf.c | 2 +- > 26 files changed, 229 insertions(+), 215 deletions(-) > > -- > 2.17.2 >