[PATCH 15/23] xfs: pass a perag structure to the xfs_ag_resv_init_error trace point

["Darrick J. Wong" <djwong@xxxxxxxxxx>]

From: Christoph Hellwig <hch@xxxxxx>

And remove the single instance class indirection for it.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 fs/xfs/libxfs/xfs_ag_resv.c |    3 +--
 fs/xfs/xfs_trace.h          |   18 +++++-------------
 2 files changed, 6 insertions(+), 15 deletions(-)


diff --git a/fs/xfs/libxfs/xfs_ag_resv.c b/fs/xfs/libxfs/xfs_ag_resv.c
index 216423df939e5c..4b1bd7cc7ba28c 100644
--- a/fs/xfs/libxfs/xfs_ag_resv.c
+++ b/fs/xfs/libxfs/xfs_ag_resv.c
@@ -206,8 +206,7 @@ __xfs_ag_resv_init(
 	else
 		error = xfs_dec_fdblocks(mp, hidden_space, true);
 	if (error) {
-		trace_xfs_ag_resv_init_error(pag->pag_mount, pag->pag_agno,
-				error, _RET_IP_);
+		trace_xfs_ag_resv_init_error(pag, error, _RET_IP_);
 		xfs_warn(mp,
 "Per-AG reservation for AG %u failed.  Filesystem may run out of space.",
 				pag->pag_agno);
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index c5128b151dbfce..14fb86daea61bf 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -3139,11 +3139,10 @@ DEFINE_AG_RESV_EVENT(xfs_ag_resv_free_extent);
 DEFINE_AG_RESV_EVENT(xfs_ag_resv_critical);
 DEFINE_AG_RESV_EVENT(xfs_ag_resv_needed);
 
-/* simple AG-based error/%ip tracepoint class */
-DECLARE_EVENT_CLASS(xfs_ag_error_class,
-	TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, int error,
+TRACE_EVENT(xfs_ag_resv_init_error,
+	TP_PROTO(const struct xfs_perag *pag, int error,
 		 unsigned long caller_ip),
-	TP_ARGS(mp, agno, error, caller_ip),
+	TP_ARGS(pag, error, caller_ip),
 	TP_STRUCT__entry(
 		__field(dev_t, dev)
 		__field(xfs_agnumber_t, agno)
@@ -3151,8 +3150,8 @@ DECLARE_EVENT_CLASS(xfs_ag_error_class,
 		__field(unsigned long, caller_ip)
 	),
 	TP_fast_assign(
-		__entry->dev = mp->m_super->s_dev;
-		__entry->agno = agno;
+		__entry->dev = pag->pag_mount->m_super->s_dev;
+		__entry->agno = pag->pag_agno;
 		__entry->error = error;
 		__entry->caller_ip = caller_ip;
 	),
@@ -3163,13 +3162,6 @@ DECLARE_EVENT_CLASS(xfs_ag_error_class,
 		  (char *)__entry->caller_ip)
 );
 
-#define DEFINE_AG_ERROR_EVENT(name) \
-DEFINE_EVENT(xfs_ag_error_class, name, \
-	TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, int error, \
-		 unsigned long caller_ip), \
-	TP_ARGS(mp, agno, error, caller_ip))
-DEFINE_AG_ERROR_EVENT(xfs_ag_resv_init_error);
-
 /* refcount tracepoint classes */
 
 DECLARE_EVENT_CLASS(xfs_refcount_class,