Cc: "David S. Miller" davem@davemloft.net Cc: sparclinux@vger.kernel.org Signed-off-by: Yang Shi yang.shi@linaro.org --- arch/sparc/mm/gup.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c index 2e5c4fc..5a06c34 100644 --- a/arch/sparc/mm/gup.c +++ b/arch/sparc/mm/gup.c @@ -12,6 +12,8 @@ #include <linux/rwsem.h> #include <asm/pgtable.h>
+#include <trace/events/gup.h> + /* * The performance critical leaf functions are made noinline otherwise gcc * inlines everything into a single function which results in too much @@ -174,6 +176,8 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write, len = (unsigned long) nr_pages << PAGE_SHIFT; end = start + len;
+ trace_gup_get_user_pages_fast(start, nr_pages); + local_irq_save(flags); pgdp = pgd_offset(mm, addr); do { @@ -236,6 +240,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
local_irq_enable();
+ trace_gup_get_user_pages_fast(start, nr_pages); + VM_BUG_ON(nr != (end - start) >> PAGE_SHIFT); return nr;