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* [PATCH] mm: change trace_mm_vmscan_writepage() proto type
@ 2015-11-12  7:42 ` yalin wang
  0 siblings, 0 replies; 4+ messages in thread
From: yalin wang @ 2015-11-12  7:42 UTC (permalink / raw)
  To: rostedt, mingo, namhyung, acme, yalin.wang2010, akpm, mhocko,
	vdavydov, vbabka, hannes, mgorman, bywxiaobai, tj, linux-kernel,
	linux-mm

Move trace_reclaim_flags() into trace function,
so that we don't need caculate these flags if the trace is disabled.

Signed-off-by: yalin wang <yalin.wang2010@gmail.com>
---
 include/trace/events/vmscan.h | 7 +++----
 mm/vmscan.c                   | 2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index f66476b..dae7836 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -330,10 +330,9 @@ DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_memcg_isolate,
 
 TRACE_EVENT(mm_vmscan_writepage,
 
-	TP_PROTO(struct page *page,
-		int reclaim_flags),
+	TP_PROTO(struct page *page),
 
-	TP_ARGS(page, reclaim_flags),
+	TP_ARGS(page),
 
 	TP_STRUCT__entry(
 		__field(unsigned long, pfn)
@@ -342,7 +341,7 @@ TRACE_EVENT(mm_vmscan_writepage,
 
 	TP_fast_assign(
 		__entry->pfn = page_to_pfn(page);
-		__entry->reclaim_flags = reclaim_flags;
+		__entry->reclaim_flags = trace_reclaim_flags(page);
 	),
 
 	TP_printk("page=%p pfn=%lu flags=%s",
diff --git a/mm/vmscan.c b/mm/vmscan.c
index a4507ec..83cea53 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -594,7 +594,7 @@ static pageout_t pageout(struct page *page, struct address_space *mapping,
 			/* synchronous write or broken a_ops? */
 			ClearPageReclaim(page);
 		}
-		trace_mm_vmscan_writepage(page, trace_reclaim_flags(page));
+		trace_mm_vmscan_writepage(page);
 		inc_zone_page_state(page, NR_VMSCAN_WRITE);
 		return PAGE_SUCCESS;
 	}
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* [PATCH] mm: change trace_mm_vmscan_writepage() proto type
@ 2015-11-12  7:42 ` yalin wang
  0 siblings, 0 replies; 4+ messages in thread
From: yalin wang @ 2015-11-12  7:42 UTC (permalink / raw)
  To: rostedt, mingo, namhyung, acme, yalin.wang2010, akpm, mhocko,
	vdavydov, vbabka, hannes, mgorman, bywxiaobai, tj, linux-kernel,
	linux-mm

Move trace_reclaim_flags() into trace function,
so that we don't need caculate these flags if the trace is disabled.

Signed-off-by: yalin wang <yalin.wang2010@gmail.com>
---
 include/trace/events/vmscan.h | 7 +++----
 mm/vmscan.c                   | 2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index f66476b..dae7836 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -330,10 +330,9 @@ DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_memcg_isolate,
 
 TRACE_EVENT(mm_vmscan_writepage,
 
-	TP_PROTO(struct page *page,
-		int reclaim_flags),
+	TP_PROTO(struct page *page),
 
-	TP_ARGS(page, reclaim_flags),
+	TP_ARGS(page),
 
 	TP_STRUCT__entry(
 		__field(unsigned long, pfn)
@@ -342,7 +341,7 @@ TRACE_EVENT(mm_vmscan_writepage,
 
 	TP_fast_assign(
 		__entry->pfn = page_to_pfn(page);
-		__entry->reclaim_flags = reclaim_flags;
+		__entry->reclaim_flags = trace_reclaim_flags(page);
 	),
 
 	TP_printk("page=%p pfn=%lu flags=%s",
diff --git a/mm/vmscan.c b/mm/vmscan.c
index a4507ec..83cea53 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -594,7 +594,7 @@ static pageout_t pageout(struct page *page, struct address_space *mapping,
 			/* synchronous write or broken a_ops? */
 			ClearPageReclaim(page);
 		}
-		trace_mm_vmscan_writepage(page, trace_reclaim_flags(page));
+		trace_mm_vmscan_writepage(page);
 		inc_zone_page_state(page, NR_VMSCAN_WRITE);
 		return PAGE_SUCCESS;
 	}
-- 
1.9.1

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^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH] mm: change trace_mm_vmscan_writepage() proto type
  2015-11-12  7:42 ` yalin wang
@ 2015-11-12 14:24   ` Steven Rostedt
  -1 siblings, 0 replies; 4+ messages in thread
From: Steven Rostedt @ 2015-11-12 14:24 UTC (permalink / raw)
  To: yalin wang
  Cc: mingo, namhyung, acme, akpm, mhocko, vdavydov, vbabka, hannes,
	mgorman, bywxiaobai, tj, linux-kernel, linux-mm

On Thu, 12 Nov 2015 15:42:33 +0800
yalin wang <yalin.wang2010@gmail.com> wrote:

> Move trace_reclaim_flags() into trace function,
> so that we don't need caculate these flags if the trace is disabled.
> 
> Signed-off-by: yalin wang <yalin.wang2010@gmail.com>

Reviewed-by: Steven Rostedt <rostedt@goodmis.org>

-- Steve

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] mm: change trace_mm_vmscan_writepage() proto type
@ 2015-11-12 14:24   ` Steven Rostedt
  0 siblings, 0 replies; 4+ messages in thread
From: Steven Rostedt @ 2015-11-12 14:24 UTC (permalink / raw)
  To: yalin wang
  Cc: mingo, namhyung, acme, akpm, mhocko, vdavydov, vbabka, hannes,
	mgorman, bywxiaobai, tj, linux-kernel, linux-mm

On Thu, 12 Nov 2015 15:42:33 +0800
yalin wang <yalin.wang2010@gmail.com> wrote:

> Move trace_reclaim_flags() into trace function,
> so that we don't need caculate these flags if the trace is disabled.
> 
> Signed-off-by: yalin wang <yalin.wang2010@gmail.com>

Reviewed-by: Steven Rostedt <rostedt@goodmis.org>

-- Steve

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2015-11-12 14:25 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-11-12  7:42 [PATCH] mm: change trace_mm_vmscan_writepage() proto type yalin wang
2015-11-12  7:42 ` yalin wang
2015-11-12 14:24 ` Steven Rostedt
2015-11-12 14:24   ` Steven Rostedt

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