Cc: linux-mips@linux-mips.org Acked-by: Ralf Baechle ralf@linux-mips.org Signed-off-by: Yang Shi yang.shi@linaro.org --- arch/mips/mm/gup.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/mips/mm/gup.c b/arch/mips/mm/gup.c index 349995d..2107499 100644 --- a/arch/mips/mm/gup.c +++ b/arch/mips/mm/gup.c @@ -15,6 +15,9 @@ #include <asm/cpu-features.h> #include <asm/pgtable.h>
+#define CREATE_TRACE_POINTS +#include <trace/events/gup.h> + static inline pte_t gup_get_pte(pte_t *ptep) { #if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32) @@ -211,6 +214,8 @@ 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, (unsigned long) nr_pages); + /* * XXX: batch / limit 'nr', to avoid large irq off latency * needs some instrumenting to determine the common sizes used by @@ -291,6 +296,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, } while (pgdp++, addr = next, addr != end); local_irq_enable();
+ trace_gup_get_user_pages_fast(start, (unsigned long) nr_pages); + VM_BUG_ON(nr != (end - start) >> PAGE_SHIFT); return nr; slow: