[added to the 4.1 stable tree] xfs: print name of verifier if it fails

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From: Eric Sandeen <sandeen@xxxxxxxxxx>

This patch has been added to the 4.1 stable tree. If you have any
objections, please let us know.

===============

[ Upstream commit 233135b763db7c64d07b728a9c66745fb0376275 ]

This adds a name to each buf_ops structure, so that if
a verifier fails we can print the type of verifier that
failed it.  Should be a slight debugging aid, I hope.

Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
Signed-off-by: Dave Chinner <david@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
 fs/xfs/libxfs/xfs_alloc.c          | 2 ++
 fs/xfs/libxfs/xfs_alloc_btree.c    | 1 +
 fs/xfs/libxfs/xfs_attr_leaf.c      | 1 +
 fs/xfs/libxfs/xfs_attr_remote.c    | 1 +
 fs/xfs/libxfs/xfs_bmap_btree.c     | 1 +
 fs/xfs/libxfs/xfs_da_btree.c       | 1 +
 fs/xfs/libxfs/xfs_dir2_block.c     | 1 +
 fs/xfs/libxfs/xfs_dir2_data.c      | 2 ++
 fs/xfs/libxfs/xfs_dir2_leaf.c      | 2 ++
 fs/xfs/libxfs/xfs_dir2_node.c      | 1 +
 fs/xfs/libxfs/xfs_dquot_buf.c      | 1 +
 fs/xfs/libxfs/xfs_ialloc.c         | 1 +
 fs/xfs/libxfs/xfs_ialloc_btree.c   | 1 +
 fs/xfs/libxfs/xfs_inode_buf.c      | 2 ++
 fs/xfs/libxfs/xfs_sb.c             | 2 ++
 fs/xfs/libxfs/xfs_symlink_remote.c | 1 +
 fs/xfs/xfs_buf.h                   | 1 +
 fs/xfs/xfs_error.c                 | 4 ++--
 18 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 516162b..e1b1c82 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -519,6 +519,7 @@ xfs_agfl_write_verify(
 }
 
 const struct xfs_buf_ops xfs_agfl_buf_ops = {
+	.name = "xfs_agfl",
 	.verify_read = xfs_agfl_read_verify,
 	.verify_write = xfs_agfl_write_verify,
 };
@@ -2276,6 +2277,7 @@ xfs_agf_write_verify(
 }
 
 const struct xfs_buf_ops xfs_agf_buf_ops = {
+	.name = "xfs_agf",
 	.verify_read = xfs_agf_read_verify,
 	.verify_write = xfs_agf_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c
index 59d521c..13629ad 100644
--- a/fs/xfs/libxfs/xfs_alloc_btree.c
+++ b/fs/xfs/libxfs/xfs_alloc_btree.c
@@ -379,6 +379,7 @@ xfs_allocbt_write_verify(
 }
 
 const struct xfs_buf_ops xfs_allocbt_buf_ops = {
+	.name = "xfs_allocbt",
 	.verify_read = xfs_allocbt_read_verify,
 	.verify_write = xfs_allocbt_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
index e9d401c..0532561 100644
--- a/fs/xfs/libxfs/xfs_attr_leaf.c
+++ b/fs/xfs/libxfs/xfs_attr_leaf.c
@@ -325,6 +325,7 @@ xfs_attr3_leaf_read_verify(
 }
 
 const struct xfs_buf_ops xfs_attr3_leaf_buf_ops = {
+	.name = "xfs_attr3_leaf",
 	.verify_read = xfs_attr3_leaf_read_verify,
 	.verify_write = xfs_attr3_leaf_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c
index dd71403..c3db53d 100644
--- a/fs/xfs/libxfs/xfs_attr_remote.c
+++ b/fs/xfs/libxfs/xfs_attr_remote.c
@@ -201,6 +201,7 @@ xfs_attr3_rmt_write_verify(
 }
 
 const struct xfs_buf_ops xfs_attr3_rmt_buf_ops = {
+	.name = "xfs_attr3_rmt",
 	.verify_read = xfs_attr3_rmt_read_verify,
 	.verify_write = xfs_attr3_rmt_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c
index 2c44c8e..225f2a8 100644
--- a/fs/xfs/libxfs/xfs_bmap_btree.c
+++ b/fs/xfs/libxfs/xfs_bmap_btree.c
@@ -719,6 +719,7 @@ xfs_bmbt_write_verify(
 }
 
 const struct xfs_buf_ops xfs_bmbt_buf_ops = {
+	.name = "xfs_bmbt",
 	.verify_read = xfs_bmbt_read_verify,
 	.verify_write = xfs_bmbt_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c
index 2385f8c..5d18270 100644
--- a/fs/xfs/libxfs/xfs_da_btree.c
+++ b/fs/xfs/libxfs/xfs_da_btree.c
@@ -241,6 +241,7 @@ xfs_da3_node_read_verify(
 }
 
 const struct xfs_buf_ops xfs_da3_node_buf_ops = {
+	.name = "xfs_da3_node",
 	.verify_read = xfs_da3_node_read_verify,
 	.verify_write = xfs_da3_node_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c
index 9354e19..a02ee01 100644
--- a/fs/xfs/libxfs/xfs_dir2_block.c
+++ b/fs/xfs/libxfs/xfs_dir2_block.c
@@ -120,6 +120,7 @@ xfs_dir3_block_write_verify(
 }
 
 const struct xfs_buf_ops xfs_dir3_block_buf_ops = {
+	.name = "xfs_dir3_block",
 	.verify_read = xfs_dir3_block_read_verify,
 	.verify_write = xfs_dir3_block_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_dir2_data.c b/fs/xfs/libxfs/xfs_dir2_data.c
index 534bbf2..e020a2c 100644
--- a/fs/xfs/libxfs/xfs_dir2_data.c
+++ b/fs/xfs/libxfs/xfs_dir2_data.c
@@ -302,11 +302,13 @@ xfs_dir3_data_write_verify(
 }
 
 const struct xfs_buf_ops xfs_dir3_data_buf_ops = {
+	.name = "xfs_dir3_data",
 	.verify_read = xfs_dir3_data_read_verify,
 	.verify_write = xfs_dir3_data_write_verify,
 };
 
 static const struct xfs_buf_ops xfs_dir3_data_reada_buf_ops = {
+	.name = "xfs_dir3_data_reada",
 	.verify_read = xfs_dir3_data_reada_verify,
 	.verify_write = xfs_dir3_data_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c
index 1061199..eb66ae0 100644
--- a/fs/xfs/libxfs/xfs_dir2_leaf.c
+++ b/fs/xfs/libxfs/xfs_dir2_leaf.c
@@ -242,11 +242,13 @@ xfs_dir3_leafn_write_verify(
 }
 
 const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops = {
+	.name = "xfs_dir3_leaf1",
 	.verify_read = xfs_dir3_leaf1_read_verify,
 	.verify_write = xfs_dir3_leaf1_write_verify,
 };
 
 const struct xfs_buf_ops xfs_dir3_leafn_buf_ops = {
+	.name = "xfs_dir3_leafn",
 	.verify_read = xfs_dir3_leafn_read_verify,
 	.verify_write = xfs_dir3_leafn_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c
index 06bb421..f6e591e 100644
--- a/fs/xfs/libxfs/xfs_dir2_node.c
+++ b/fs/xfs/libxfs/xfs_dir2_node.c
@@ -147,6 +147,7 @@ xfs_dir3_free_write_verify(
 }
 
 const struct xfs_buf_ops xfs_dir3_free_buf_ops = {
+	.name = "xfs_dir3_free",
 	.verify_read = xfs_dir3_free_read_verify,
 	.verify_write = xfs_dir3_free_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_dquot_buf.c b/fs/xfs/libxfs/xfs_dquot_buf.c
index 48aff07..f48c304 100644
--- a/fs/xfs/libxfs/xfs_dquot_buf.c
+++ b/fs/xfs/libxfs/xfs_dquot_buf.c
@@ -301,6 +301,7 @@ xfs_dquot_buf_write_verify(
 }
 
 const struct xfs_buf_ops xfs_dquot_buf_ops = {
+	.name = "xfs_dquot",
 	.verify_read = xfs_dquot_buf_read_verify,
 	.verify_write = xfs_dquot_buf_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index 1c9e755..fe20c26 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -2117,6 +2117,7 @@ xfs_agi_write_verify(
 }
 
 const struct xfs_buf_ops xfs_agi_buf_ops = {
+	.name = "xfs_agi",
 	.verify_read = xfs_agi_read_verify,
 	.verify_write = xfs_agi_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index 964c465..216a6f0 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -295,6 +295,7 @@ xfs_inobt_write_verify(
 }
 
 const struct xfs_buf_ops xfs_inobt_buf_ops = {
+	.name = "xfs_inobt",
 	.verify_read = xfs_inobt_read_verify,
 	.verify_write = xfs_inobt_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
index 7da6d0b..a217176 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.c
+++ b/fs/xfs/libxfs/xfs_inode_buf.c
@@ -138,11 +138,13 @@ xfs_inode_buf_write_verify(
 }
 
 const struct xfs_buf_ops xfs_inode_buf_ops = {
+	.name = "xfs_inode",
 	.verify_read = xfs_inode_buf_read_verify,
 	.verify_write = xfs_inode_buf_write_verify,
 };
 
 const struct xfs_buf_ops xfs_inode_buf_ra_ops = {
+	.name = "xxfs_inode_ra",
 	.verify_read = xfs_inode_buf_readahead_verify,
 	.verify_write = xfs_inode_buf_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index dc4bfc5..535bd84 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -637,11 +637,13 @@ xfs_sb_write_verify(
 }
 
 const struct xfs_buf_ops xfs_sb_buf_ops = {
+	.name = "xfs_sb",
 	.verify_read = xfs_sb_read_verify,
 	.verify_write = xfs_sb_write_verify,
 };
 
 const struct xfs_buf_ops xfs_sb_quiet_buf_ops = {
+	.name = "xfs_sb_quiet",
 	.verify_read = xfs_sb_quiet_read_verify,
 	.verify_write = xfs_sb_write_verify,
 };
diff --git a/fs/xfs/libxfs/xfs_symlink_remote.c b/fs/xfs/libxfs/xfs_symlink_remote.c
index e7e26bd..4caff91 100644
--- a/fs/xfs/libxfs/xfs_symlink_remote.c
+++ b/fs/xfs/libxfs/xfs_symlink_remote.c
@@ -164,6 +164,7 @@ xfs_symlink_write_verify(
 }
 
 const struct xfs_buf_ops xfs_symlink_buf_ops = {
+	.name = "xfs_symlink",
 	.verify_read = xfs_symlink_read_verify,
 	.verify_write = xfs_symlink_write_verify,
 };
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
index 75ff5d5..110cb85 100644
--- a/fs/xfs/xfs_buf.h
+++ b/fs/xfs/xfs_buf.h
@@ -131,6 +131,7 @@ struct xfs_buf_map {
 	struct xfs_buf_map (map) = { .bm_bn = (blkno), .bm_len = (numblk) };
 
 struct xfs_buf_ops {
+	char *name;
 	void (*verify_read)(struct xfs_buf *);
 	void (*verify_write)(struct xfs_buf *);
 };
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index 338e50b..63db1cc 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -164,9 +164,9 @@ xfs_verifier_error(
 {
 	struct xfs_mount *mp = bp->b_target->bt_mount;
 
-	xfs_alert(mp, "Metadata %s detected at %pF, block 0x%llx",
+	xfs_alert(mp, "Metadata %s detected at %pF, %s block 0x%llx",
 		  bp->b_error == -EFSBADCRC ? "CRC error" : "corruption",
-		  __return_address, bp->b_bn);
+		  __return_address, bp->b_ops->name, bp->b_bn);
 
 	xfs_alert(mp, "Unmount and run xfs_repair");
 
-- 
2.5.0

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