Cc: "David S. Miller" <da...@davemloft.net>
Cc: sparcli...@vger.kernel.org
Signed-off-by: Yang Shi <yang....@linaro.org>
---
The context depends on the below patch:
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1028752.html
arch/sparc/mm/gup.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c
index cf4fb47..6dcfc4d 100644
--- a/arch/sparc/mm/gup.c
+++ b/arch/sparc/mm/gup.c
@@ -10,6 +10,10 @@
#include <linux/vmstat.h>
#include <linux/pagemap.h>
#include <linux/rwsem.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/gup.h>
+
#include <asm/pgtable.h>
/*
@@ -177,6 +181,8 @@ int __get_user_pages_fast(unsigned long start, int
nr_pages, int write,
(void __user *)start, len)))
return 0;
+ trace_gup_get_user_pages_fast(start, nr_pages, write, pages);
+
local_irq_save(flags);
pgdp = pgd_offset(mm, addr);
do {
@@ -209,6 +215,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages,
int write,
if (end < start)
goto slow_irqon;
+ trace_gup_get_user_pages_fast(start, nr_pages, write, pages);
+
/*
* XXX: batch / limit 'nr', to avoid large irq off latency
* needs some instrumenting to determine the common sizes used by
--
2.0.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
