[merged] mm-cma-add-the-cma-instance-name-to-cma-trace-events.patch removed from -mm tree

[merged] mm-cma-add-the-cma-instance-name-to-cma-trace-events.patch removed from -mm tree

[akpm]

The patch titled
     Subject: mm: cma: add the CMA instance name to cma trace events
has been removed from the -mm tree.  Its filename was
     mm-cma-add-the-cma-instance-name-to-cma-trace-events.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Minchan Kim <minchan@kernel.org>
Subject: mm: cma: add the CMA instance name to cma trace events

There were missing places to add cma instance name.  To identify each CMA
instance, let's add the name for every cma trace.  This patch also changes
the existing cma_trace_alloc to cma_trace_finish since we have
cma_alloc_start[1].

[1] https://lore.kernel.org/linux-mm/20210324160740.15901-1-georgi.djakov@linaro.org

Link: https://lkml.kernel.org/r/20210330220237.748899-1-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Liam Mark <lmark@codeaurora.org>
Cc: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/trace/events/cma.h |   28 +++++++++++++++++-----------
 mm/cma.c                   |    7 ++++---
 2 files changed, 21 insertions(+), 14 deletions(-)

--- a/include/trace/events/cma.h~mm-cma-add-the-cma-instance-name-to-cma-trace-events
+++ a/include/trace/events/cma.h
@@ -10,12 +10,13 @@
 
 DECLARE_EVENT_CLASS(cma_alloc_class,
 
-	TP_PROTO(unsigned long pfn, const struct page *page,
+	TP_PROTO(const char *name, unsigned long pfn, const struct page *page,
 		 unsigned int count, unsigned int align),
 
-	TP_ARGS(pfn, page, count, align),
+	TP_ARGS(name, pfn, page, count, align),
 
 	TP_STRUCT__entry(
+		__string(name, name)
 		__field(unsigned long, pfn)
 		__field(const struct page *, page)
 		__field(unsigned int, count)
@@ -23,13 +24,15 @@ DECLARE_EVENT_CLASS(cma_alloc_class,
 	),
 
 	TP_fast_assign(
+		__assign_str(name, name);
 		__entry->pfn = pfn;
 		__entry->page = page;
 		__entry->count = count;
 		__entry->align = align;
 	),
 
-	TP_printk("pfn=%lx page=%p count=%u align=%u",
+	TP_printk("name=%s pfn=%lx page=%p count=%u align=%u",
+		  __get_str(name),
 		  __entry->pfn,
 		  __entry->page,
 		  __entry->count,
@@ -38,24 +41,27 @@ DECLARE_EVENT_CLASS(cma_alloc_class,
 
 TRACE_EVENT(cma_release,
 
-	TP_PROTO(unsigned long pfn, const struct page *page,
+	TP_PROTO(const char *name, unsigned long pfn, const struct page *page,
 		 unsigned int count),
 
-	TP_ARGS(pfn, page, count),
+	TP_ARGS(name, pfn, page, count),
 
 	TP_STRUCT__entry(
+		__string(name, name)
 		__field(unsigned long, pfn)
 		__field(const struct page *, page)
 		__field(unsigned int, count)
 	),
 
 	TP_fast_assign(
+		__assign_str(name, name);
 		__entry->pfn = pfn;
 		__entry->page = page;
 		__entry->count = count;
 	),
 
-	TP_printk("pfn=%lx page=%p count=%u",
+	TP_printk("name=%s pfn=%lx page=%p count=%u",
+		  __get_str(name),
 		  __entry->pfn,
 		  __entry->page,
 		  __entry->count)
@@ -85,20 +91,20 @@ TRACE_EVENT(cma_alloc_start,
 		  __entry->align)
 );
 
-DEFINE_EVENT(cma_alloc_class, cma_alloc,
+DEFINE_EVENT(cma_alloc_class, cma_alloc_finish,
 
-	TP_PROTO(unsigned long pfn, const struct page *page,
+	TP_PROTO(const char *name, unsigned long pfn, const struct page *page,
 		 unsigned int count, unsigned int align),
 
-	TP_ARGS(pfn, page, count, align)
+	TP_ARGS(name, pfn, page, count, align)
 );
 
 DEFINE_EVENT(cma_alloc_class, cma_alloc_busy_retry,
 
-	TP_PROTO(unsigned long pfn, const struct page *page,
+	TP_PROTO(const char *name, unsigned long pfn, const struct page *page,
 		 unsigned int count, unsigned int align),
 
-	TP_ARGS(pfn, page, count, align)
+	TP_ARGS(name, pfn, page, count, align)
 );
 
 #endif /* _TRACE_CMA_H */
--- a/mm/cma.c~mm-cma-add-the-cma-instance-name-to-cma-trace-events
+++ a/mm/cma.c
@@ -486,12 +486,13 @@ struct page *cma_alloc(struct cma *cma,
 		pr_debug("%s(): memory range at %p is busy, retrying\n",
 			 __func__, pfn_to_page(pfn));
 
-		trace_cma_alloc_busy_retry(pfn, pfn_to_page(pfn), count, align);
+		trace_cma_alloc_busy_retry(cma->name, pfn, pfn_to_page(pfn),
+					   count, align);
 		/* try again with a bit different memory target */
 		start = bitmap_no + mask + 1;
 	}
 
-	trace_cma_alloc(pfn, page, count, align);
+	trace_cma_alloc_finish(cma->name, pfn, page, count, align);
 
 	/*
 	 * CMA can allocate multiple page blocks, which results in different
@@ -551,7 +552,7 @@ bool cma_release(struct cma *cma, const
 
 	free_contig_range(pfn, count);
 	cma_clear_bitmap(cma, pfn, count);
-	trace_cma_release(pfn, pages, count);
+	trace_cma_release(cma->name, pfn, pages, count);
 
 	return true;
 }
_

Patches currently in -mm which might be from minchan@kernel.org are