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From: "Darrick J. Wong" <djwong@kernel.org>
To: djwong@kernel.org
Cc: linux-xfs@vger.kernel.org
Subject: [PATCH 7/7] xfs: validate ag btree levels using the precomputed values
Date: Tue, 02 Mar 2021 14:29:16 -0800	[thread overview]
Message-ID: <161472415607.3421582.13410103932115410995.stgit@magnolia> (raw)
In-Reply-To: <161472411627.3421582.2040330025988154363.stgit@magnolia>

From: Darrick J. Wong <djwong@kernel.org>

Use the AG btree height limits that we precomputed into the xfs_mount to
validate the AG headers instead of using XFS_BTREE_MAXLEVELS.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/xfs/libxfs/xfs_alloc.c      |    8 ++++----
 fs/xfs/libxfs/xfs_ialloc.c     |    4 ++--
 fs/xfs/libxfs/xfs_inode_fork.c |    2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)


diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 0c623d3c1036..aaa19101bb2a 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -2906,13 +2906,13 @@ xfs_agf_verify(
 
 	if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) < 1 ||
 	    be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) < 1 ||
-	    be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > XFS_BTREE_MAXLEVELS ||
-	    be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > XFS_BTREE_MAXLEVELS)
+	    be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > mp->m_ag_maxlevels ||
+	    be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > mp->m_ag_maxlevels)
 		return __this_address;
 
 	if (xfs_sb_version_hasrmapbt(&mp->m_sb) &&
 	    (be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) < 1 ||
-	     be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) > XFS_BTREE_MAXLEVELS))
+	     be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) > mp->m_rmap_maxlevels))
 		return __this_address;
 
 	if (xfs_sb_version_hasrmapbt(&mp->m_sb) &&
@@ -2939,7 +2939,7 @@ xfs_agf_verify(
 
 	if (xfs_sb_version_hasreflink(&mp->m_sb) &&
 	    (be32_to_cpu(agf->agf_refcount_level) < 1 ||
-	     be32_to_cpu(agf->agf_refcount_level) > XFS_BTREE_MAXLEVELS))
+	     be32_to_cpu(agf->agf_refcount_level) > mp->m_refc_maxlevels))
 		return __this_address;
 
 	return NULL;
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index 69b228fce81a..eefdb518fe64 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -2535,12 +2535,12 @@ xfs_agi_verify(
 		return __this_address;
 
 	if (be32_to_cpu(agi->agi_level) < 1 ||
-	    be32_to_cpu(agi->agi_level) > XFS_BTREE_MAXLEVELS)
+	    be32_to_cpu(agi->agi_level) > M_IGEO(mp)->inobt_maxlevels)
 		return __this_address;
 
 	if (xfs_sb_version_hasfinobt(&mp->m_sb) &&
 	    (be32_to_cpu(agi->agi_free_level) < 1 ||
-	     be32_to_cpu(agi->agi_free_level) > XFS_BTREE_MAXLEVELS))
+	     be32_to_cpu(agi->agi_free_level) > M_IGEO(mp)->inobt_maxlevels))
 		return __this_address;
 
 	/*
diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c
index e080d7e07643..192bcf3e549d 100644
--- a/fs/xfs/libxfs/xfs_inode_fork.c
+++ b/fs/xfs/libxfs/xfs_inode_fork.c
@@ -195,7 +195,7 @@ xfs_iformat_btree(
 		     XFS_BMDR_SPACE_CALC(nrecs) >
 					XFS_DFORK_SIZE(dip, mp, whichfork) ||
 		     ifp->if_nextents > ip->i_d.di_nblocks) ||
-		     level == 0 || level > XFS_BTREE_MAXLEVELS) {
+		     level == 0 || level > XFS_BM_MAXLEVELS(mp, whichfork)) {
 		xfs_warn(mp, "corrupt inode %Lu (btree).",
 					(unsigned long long) ip->i_ino);
 		xfs_inode_verifier_error(ip, -EFSCORRUPTED,


  parent reply	other threads:[~2021-03-03  3:19 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-02 22:28 [PATCHSET 0/7] xfs: small fixes and cleanups Darrick J. Wong
2021-03-02 22:28 ` [PATCH 1/7] xfs: fix uninitialized variables in xrep_calc_ag_resblks Darrick J. Wong
2021-03-05  8:23   ` Christoph Hellwig
2021-03-05 17:49     ` Darrick J. Wong
2021-03-06  7:15   ` Christoph Hellwig
2021-03-02 22:28 ` [PATCH 2/7] xfs: fix dquot scrub loop cancellation Darrick J. Wong
2021-03-05  8:24   ` Christoph Hellwig
2021-03-02 22:28 ` [PATCH 3/7] xfs: bail out of scrub immediately if scan incomplete Darrick J. Wong
2021-03-05  8:25   ` Christoph Hellwig
2021-03-02 22:28 ` [PATCH 4/7] xfs: mark a data structure sick if there are cross-referencing errors Darrick J. Wong
2021-03-05  8:26   ` Christoph Hellwig
2021-03-02 22:29 ` [PATCH 5/7] xfs: set the scrub AG number in xchk_ag_read_headers Darrick J. Wong
2021-03-05  8:27   ` Christoph Hellwig
2021-03-02 22:29 ` [PATCH 6/7] xfs: remove return value from xchk_ag_btcur_init Darrick J. Wong
2021-03-05  8:28   ` Christoph Hellwig
2021-03-02 22:29 ` Darrick J. Wong [this message]
2021-03-05  8:29   ` [PATCH 7/7] xfs: validate ag btree levels using the precomputed values Christoph Hellwig

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