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From: Brian Foster <bfoster@redhat.com>
To: linux-xfs@vger.kernel.org
Subject: [PATCH v4 4/8] xfs: split up allocation btree verifier
Date: Thu,  7 Feb 2019 13:41:01 -0500	[thread overview]
Message-ID: <20190207184105.17064-5-bfoster@redhat.com> (raw)
In-Reply-To: <20190207184105.17064-1-bfoster@redhat.com>

Similar to the inode btree verifier, the same allocation btree
verifier structure is shared between the by-bno (bnobt) and by-size
(cntbt) btrees. This prevents the ability to distinguish magic
values between them. Separate the verifier into two, one for each
tree, and assign them appropriately. No functional changes.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 fs/xfs/libxfs/xfs_ag.c          |  4 ++--
 fs/xfs/libxfs/xfs_alloc_btree.c | 14 ++++++++++----
 fs/xfs/libxfs/xfs_shared.h      |  3 ++-
 fs/xfs/scrub/agheader_repair.c  |  4 ++--
 fs/xfs/xfs_log_recover.c        |  6 ++++--
 5 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_ag.c b/fs/xfs/libxfs/xfs_ag.c
index bde67ef3ff43..1ef8acf35e7d 100644
--- a/fs/xfs/libxfs/xfs_ag.c
+++ b/fs/xfs/libxfs/xfs_ag.c
@@ -339,14 +339,14 @@ xfs_ag_init_headers(
 	{ /* BNO root block */
 		.daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_BNO_BLOCK(mp)),
 		.numblks = BTOBB(mp->m_sb.sb_blocksize),
-		.ops = &xfs_allocbt_buf_ops,
+		.ops = &xfs_bnobt_buf_ops,
 		.work = &xfs_bnoroot_init,
 		.need_init = true
 	},
 	{ /* CNT root block */
 		.daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_CNT_BLOCK(mp)),
 		.numblks = BTOBB(mp->m_sb.sb_blocksize),
-		.ops = &xfs_allocbt_buf_ops,
+		.ops = &xfs_cntbt_buf_ops,
 		.work = &xfs_cntroot_init,
 		.need_init = true
 	},
diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c
index 4e59cc8a2802..480d0f52da64 100644
--- a/fs/xfs/libxfs/xfs_alloc_btree.c
+++ b/fs/xfs/libxfs/xfs_alloc_btree.c
@@ -377,13 +377,19 @@ xfs_allocbt_write_verify(
 
 }
 
-const struct xfs_buf_ops xfs_allocbt_buf_ops = {
-	.name = "xfs_allocbt",
+const struct xfs_buf_ops xfs_bnobt_buf_ops = {
+	.name = "xfs_bnobt",
 	.verify_read = xfs_allocbt_read_verify,
 	.verify_write = xfs_allocbt_write_verify,
 	.verify_struct = xfs_allocbt_verify,
 };
 
+const struct xfs_buf_ops xfs_cntbt_buf_ops = {
+	.name = "xfs_cntbt",
+	.verify_read = xfs_allocbt_read_verify,
+	.verify_write = xfs_allocbt_write_verify,
+	.verify_struct = xfs_allocbt_verify,
+};
 
 STATIC int
 xfs_bnobt_keys_inorder(
@@ -448,7 +454,7 @@ static const struct xfs_btree_ops xfs_bnobt_ops = {
 	.init_rec_from_cur	= xfs_allocbt_init_rec_from_cur,
 	.init_ptr_from_cur	= xfs_allocbt_init_ptr_from_cur,
 	.key_diff		= xfs_bnobt_key_diff,
-	.buf_ops		= &xfs_allocbt_buf_ops,
+	.buf_ops		= &xfs_bnobt_buf_ops,
 	.diff_two_keys		= xfs_bnobt_diff_two_keys,
 	.keys_inorder		= xfs_bnobt_keys_inorder,
 	.recs_inorder		= xfs_bnobt_recs_inorder,
@@ -470,7 +476,7 @@ static const struct xfs_btree_ops xfs_cntbt_ops = {
 	.init_rec_from_cur	= xfs_allocbt_init_rec_from_cur,
 	.init_ptr_from_cur	= xfs_allocbt_init_ptr_from_cur,
 	.key_diff		= xfs_cntbt_key_diff,
-	.buf_ops		= &xfs_allocbt_buf_ops,
+	.buf_ops		= &xfs_cntbt_buf_ops,
 	.diff_two_keys		= xfs_cntbt_diff_two_keys,
 	.keys_inorder		= xfs_cntbt_keys_inorder,
 	.recs_inorder		= xfs_cntbt_recs_inorder,
diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h
index 9855f4d2f98f..4e909791aeac 100644
--- a/fs/xfs/libxfs/xfs_shared.h
+++ b/fs/xfs/libxfs/xfs_shared.h
@@ -25,7 +25,8 @@ extern const struct xfs_buf_ops xfs_agf_buf_ops;
 extern const struct xfs_buf_ops xfs_agi_buf_ops;
 extern const struct xfs_buf_ops xfs_agf_buf_ops;
 extern const struct xfs_buf_ops xfs_agfl_buf_ops;
-extern const struct xfs_buf_ops xfs_allocbt_buf_ops;
+extern const struct xfs_buf_ops xfs_bnobt_buf_ops;
+extern const struct xfs_buf_ops xfs_cntbt_buf_ops;
 extern const struct xfs_buf_ops xfs_rmapbt_buf_ops;
 extern const struct xfs_buf_ops xfs_refcountbt_buf_ops;
 extern const struct xfs_buf_ops xfs_attr3_leaf_buf_ops;
diff --git a/fs/xfs/scrub/agheader_repair.c b/fs/xfs/scrub/agheader_repair.c
index 673be3cf7b8d..2799d1531639 100644
--- a/fs/xfs/scrub/agheader_repair.c
+++ b/fs/xfs/scrub/agheader_repair.c
@@ -341,12 +341,12 @@ xrep_agf(
 	struct xrep_find_ag_btree	fab[XREP_AGF_MAX] = {
 		[XREP_AGF_BNOBT] = {
 			.rmap_owner = XFS_RMAP_OWN_AG,
-			.buf_ops = &xfs_allocbt_buf_ops,
+			.buf_ops = &xfs_bnobt_buf_ops,
 			.magic = XFS_ABTB_CRC_MAGIC,
 		},
 		[XREP_AGF_CNTBT] = {
 			.rmap_owner = XFS_RMAP_OWN_AG,
-			.buf_ops = &xfs_allocbt_buf_ops,
+			.buf_ops = &xfs_cntbt_buf_ops,
 			.magic = XFS_ABTC_CRC_MAGIC,
 		},
 		[XREP_AGF_RMAPBT] = {
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 228c754bb137..5ad42d598333 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2439,10 +2439,12 @@ xlog_recover_validate_buf_type(
 	case XFS_BLFT_BTREE_BUF:
 		switch (magic32) {
 		case XFS_ABTB_CRC_MAGIC:
-		case XFS_ABTC_CRC_MAGIC:
 		case XFS_ABTB_MAGIC:
+			bp->b_ops = &xfs_bnobt_buf_ops;
+			break;
+		case XFS_ABTC_CRC_MAGIC:
 		case XFS_ABTC_MAGIC:
-			bp->b_ops = &xfs_allocbt_buf_ops;
+			bp->b_ops = &xfs_cntbt_buf_ops;
 			break;
 		case XFS_IBT_CRC_MAGIC:
 		case XFS_IBT_MAGIC:
-- 
2.17.2

  parent reply	other threads:[~2019-02-07 18:41 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-07 18:40 [PATCH v4 0/8] xfs: fix [f]inobt magic value verification Brian Foster
2019-02-07 18:40 ` [PATCH v4 1/8] xfs: always check magic values in on-disk byte order Brian Foster
2019-02-07 18:55   ` [PATCH 0.5/8] xfs: clarify documentation for the function to reverify buffers Darrick J. Wong
2019-02-07 18:40 ` [PATCH v4 2/8] xfs: create a separate finobt verifier Brian Foster
2019-02-07 18:41 ` [PATCH v4 3/8] xfs: distinguish between inobt and finobt magic values Brian Foster
2019-02-07 18:52   ` Darrick J. Wong
2019-02-07 18:59     ` Brian Foster
2019-02-07 18:41 ` Brian Foster [this message]
2019-02-07 18:41 ` [PATCH v4 5/8] xfs: distinguish between bnobt and cntbt " Brian Foster
2019-02-07 18:41 ` [PATCH v4 6/8] xfs: use verifier magic field in dir2 leaf verifiers Brian Foster
2019-02-07 19:10   ` Darrick J. Wong
2019-02-07 19:37     ` Brian Foster
2019-02-07 20:10   ` [PATCH v4.1] " Brian Foster
2019-02-07 18:41 ` [PATCH v4 7/8] xfs: miscellaneous verifier magic value fixups Brian Foster
2019-02-07 19:13   ` Darrick J. Wong
2019-02-07 19:42     ` Brian Foster
2019-02-07 20:11   ` [PATCH v4.1] " Brian Foster
2019-02-07 18:41 ` [PATCH v4 8/8] xfs: factor xfs_da3_blkinfo verification into common helper Brian Foster
2019-02-07 18:56 ` [PATCH 9/8] xfs: add inode magic to inode verifier Darrick J. Wong
2019-02-07 20:27   ` Brian Foster
2019-02-07 18:56 ` [PATCH 10/8] xfs: add magic numbers to dquot buffer ops Darrick J. Wong
2019-02-07 20:27   ` Brian Foster
2019-02-07 18:57 ` [PATCH 11/8] xfs: use buf ops magic to detect btree block type Darrick J. Wong
2019-02-07 20:27   ` Brian Foster

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