xfs: pass objects to the xfs_irec_merge_{pre,post} trace points

Pass the perag structure and the irec to these tracepoints so that the
decoding is only done when tracing is actually enabled and the call sites
look a lot neater.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>

Author: Christoph Hellwig

fs/xfs/libxfs/xfs_ialloc.c

@@ -606,15 +606,12 @@ xfs_inobt_insert_sprec(
 		goto error;
 	}
 
-	trace_xfs_irec_merge_pre(mp, pag->pag_agno, rec.ir_startino,
-				 rec.ir_holemask, nrec->ir_startino,
-				 nrec->ir_holemask);
+	trace_xfs_irec_merge_pre(pag, &rec, nrec);
 
 	/* merge to nrec to output the updated record */
 	__xfs_inobt_rec_merge(nrec, &rec);
 
-	trace_xfs_irec_merge_post(mp, pag->pag_agno, nrec->ir_startino,
-				  nrec->ir_holemask);
+	trace_xfs_irec_merge_post(pag, nrec);
 
 	error = xfs_inobt_rec_check_count(mp, nrec);
 	if (error)

fs/xfs/xfs_trace.h

@@ -894,9 +894,10 @@ TRACE_EVENT(xfs_iomap_prealloc_size,
 )
 
 TRACE_EVENT(xfs_irec_merge_pre,
-	TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, xfs_agino_t agino,
-		 uint16_t holemask, xfs_agino_t nagino, uint16_t nholemask),
-	TP_ARGS(mp, agno, agino, holemask, nagino, nholemask),
+	TP_PROTO(const struct xfs_perag *pag,
+		 const struct xfs_inobt_rec_incore *rec,
+		 const struct xfs_inobt_rec_incore *nrec),
+	TP_ARGS(pag, rec, nrec),
 	TP_STRUCT__entry(
 		__field(dev_t, dev)
 		__field(xfs_agnumber_t, agno)
@@ -906,12 +907,12 @@ TRACE_EVENT(xfs_irec_merge_pre,
 		__field(uint16_t, nholemask)
 	),
 	TP_fast_assign(
-		__entry->dev = mp->m_super->s_dev;
-		__entry->agno = agno;
-		__entry->agino = agino;
-		__entry->holemask = holemask;
-		__entry->nagino = nagino;
-		__entry->nholemask = holemask;
+		__entry->dev = pag->pag_mount->m_super->s_dev;
+		__entry->agno = pag->pag_agno;
+		__entry->agino = rec->ir_startino;
+		__entry->holemask = rec->ir_holemask;
+		__entry->nagino = nrec->ir_startino;
+		__entry->nholemask = nrec->ir_holemask;
 	),
 	TP_printk("dev %d:%d agno 0x%x agino 0x%x holemask 0x%x new_agino 0x%x new_holemask 0x%x",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
@@ -923,20 +924,20 @@ TRACE_EVENT(xfs_irec_merge_pre,
 )
 
 TRACE_EVENT(xfs_irec_merge_post,
-	TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, xfs_agino_t agino,
-		 uint16_t holemask),
-	TP_ARGS(mp, agno, agino, holemask),
+	TP_PROTO(const struct xfs_perag *pag,
+		 const struct xfs_inobt_rec_incore *nrec),
+	TP_ARGS(pag, nrec),
 	TP_STRUCT__entry(
 		__field(dev_t, dev)
 		__field(xfs_agnumber_t, agno)
 		__field(xfs_agino_t, agino)
 		__field(uint16_t, holemask)
 	),
 	TP_fast_assign(
-		__entry->dev = mp->m_super->s_dev;
-		__entry->agno = agno;
-		__entry->agino = agino;
-		__entry->holemask = holemask;
+		__entry->dev = pag->pag_mount->m_super->s_dev;
+		__entry->agno = pag->pag_agno;
+		__entry->agino = nrec->ir_startino;
+		__entry->holemask = nrec->ir_holemask;
 	),
 	TP_printk("dev %d:%d agno 0x%x agino 0x%x holemask 0x%x",
 		  MAJOR(__entry->dev),