Cc: linux-sh@vger.kernel.org Signed-off-by: Yang Shi yang.shi@linaro.org --- arch/sh/mm/gup.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/sh/mm/gup.c b/arch/sh/mm/gup.c index e7af6a6..fa72aac 100644 --- a/arch/sh/mm/gup.c +++ b/arch/sh/mm/gup.c @@ -14,6 +14,9 @@ #include <linux/highmem.h> #include <asm/pgtable.h>
+#define CREATE_TRACE_POINTS +#include <trace/events/gup.h> + static inline pte_t gup_get_pte(pte_t *ptep) { #ifndef CONFIG_X2TLB @@ -178,6 +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); + /* * This doesn't prevent pagetable teardown, but does prevent * the pagetables and pages from being freed. @@ -244,6 +249,8 @@ 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, nr_pages); + VM_BUG_ON(nr != (end - start) >> PAGE_SHIFT); return nr;