xfs: stringify btree cursor types in ftrace output

Use __print_symbolic to print the btree type in ftrace output.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>

1 files changed, 26 insertions, 12 deletions

diff --git a/fs/xfs/scrub/trace.h b/fs/xfs/scrub/trace.h
index 76b5c334d9eb..2f23b10cdc71 100644
--- a/fs/xfs/scrub/trace.h
+++ b/fs/xfs/scrub/trace.h
@@ -12,6 +12,20 @@
 #include <linux/tracepoint.h>
 #include "xfs_bit.h"
 
+/*
+ * ftrace's __print_symbolic requires that all enum values be wrapped in the
+ * TRACE_DEFINE_ENUM macro so that the enum value can be encoded in the ftrace
+ * ring buffer.  Somehow this was only worth mentioning in the ftrace sample
+ * code.
+ */
+TRACE_DEFINE_ENUM(XFS_BTNUM_BNOi);
+TRACE_DEFINE_ENUM(XFS_BTNUM_CNTi);
+TRACE_DEFINE_ENUM(XFS_BTNUM_BMAPi);
+TRACE_DEFINE_ENUM(XFS_BTNUM_INOi);
+TRACE_DEFINE_ENUM(XFS_BTNUM_FINOi);
+TRACE_DEFINE_ENUM(XFS_BTNUM_RMAPi);
+TRACE_DEFINE_ENUM(XFS_BTNUM_REFCi);
+
 DECLARE_EVENT_CLASS(xchk_class,
 	TP_PROTO(struct xfs_inode *ip, struct xfs_scrub_metadata *sm,
 		 int error),
@@ -278,10 +292,10 @@ TRACE_EVENT(xchk_btree_op_error,
 		__entry->error = error;
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d type %u btnum %d level %d ptr %d agno %u agbno %u error %d ret_ip %pS",
+	TP_printk("dev %d:%d type %u btree %s level %d ptr %d agno %u agbno %u error %d ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->type,
-		  __entry->btnum,
+		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS),
 		  __entry->level,
 		  __entry->ptr,
 		  __entry->agno,
@@ -321,12 +335,12 @@ TRACE_EVENT(xchk_ifork_btree_op_error,
 		__entry->error = error;
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d ino 0x%llx fork %d type %u btnum %d level %d ptr %d agno %u agbno %u error %d ret_ip %pS",
+	TP_printk("dev %d:%d ino 0x%llx fork %d type %u btree %s level %d ptr %d agno %u agbno %u error %d ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->ino,
 		  __entry->whichfork,
 		  __entry->type,
-		  __entry->btnum,
+		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS),
 		  __entry->level,
 		  __entry->ptr,
 		  __entry->agno,
@@ -360,10 +374,10 @@ TRACE_EVENT(xchk_btree_error,
 		__entry->ptr = cur->bc_ptrs[level];
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d type %u btnum %d level %d ptr %d agno %u agbno %u ret_ip %pS",
+	TP_printk("dev %d:%d type %u btree %s level %d ptr %d agno %u agbno %u ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->type,
-		  __entry->btnum,
+		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS),
 		  __entry->level,
 		  __entry->ptr,
 		  __entry->agno,
@@ -400,12 +414,12 @@ TRACE_EVENT(xchk_ifork_btree_error,
 		__entry->ptr = cur->bc_ptrs[level];
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d ino 0x%llx fork %d type %u btnum %d level %d ptr %d agno %u agbno %u ret_ip %pS",
+	TP_printk("dev %d:%d ino 0x%llx fork %d type %u btree %s level %d ptr %d agno %u agbno %u ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->ino,
 		  __entry->whichfork,
 		  __entry->type,
-		  __entry->btnum,
+		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS),
 		  __entry->level,
 		  __entry->ptr,
 		  __entry->agno,
@@ -439,10 +453,10 @@ DECLARE_EVENT_CLASS(xchk_sbtree_class,
 		__entry->nlevels = cur->bc_nlevels;
 		__entry->ptr = cur->bc_ptrs[level];
 	),
-	TP_printk("dev %d:%d type %u btnum %d agno %u agbno %u level %d nlevels %d ptr %d",
+	TP_printk("dev %d:%d type %u btree %s agno %u agbno %u level %d nlevels %d ptr %d",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->type,
-		  __entry->btnum,
+		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS),
 		  __entry->agno,
 		  __entry->bno,
 		  __entry->level,
@@ -598,11 +612,11 @@ TRACE_EVENT(xrep_init_btblock,
 		__entry->agbno = agbno;
 		__entry->btnum = btnum;
 	),
-	TP_printk("dev %d:%d agno %u agbno %u btnum %d",
+	TP_printk("dev %d:%d agno %u agbno %u btree %s",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->agno,
 		  __entry->agbno,
-		  __entry->btnum)
+		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS))
 )
 TRACE_EVENT(xrep_findroot_block,
 	TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, xfs_agblock_t agbno,