| Message ID | 1449696151-4195-6-git-send-email-yang.shi@linaro.org |
|---|---|
| State | New |
| Headers | show |
Hi folks, Any comment for this one? The tracing part review has been done. Thanks, Yang On 12/9/2015 1:22 PM, Yang Shi wrote: > Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> > Cc: Heiko Carstens <heiko.carstens@de.ibm.com> > Cc: linux-s390@vger.kernel.org > Signed-off-by: Yang Shi <yang.shi@linaro.org> > --- > arch/s390/mm/gup.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c > index 12bbf0e..a1d5db7 100644 > --- a/arch/s390/mm/gup.c > +++ b/arch/s390/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 > @@ -188,6 +190,9 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write, > end = start + len; > if ((end <= start) || (end > TASK_SIZE)) > return 0; > + > + trace_gup_get_user_pages_fast(start, nr_pages); > + > /* > * local_irq_save() doesn't prevent pagetable teardown, but does > * prevent the pagetables from being freed on s390. >
diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c index 12bbf0e..a1d5db7 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/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 @@ -188,6 +190,9 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write, end = start + len; if ((end <= start) || (end > TASK_SIZE)) return 0; + + trace_gup_get_user_pages_fast(start, nr_pages); + /* * local_irq_save() doesn't prevent pagetable teardown, but does * prevent the pagetables from being freed on s390.
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux-s390@vger.kernel.org Signed-off-by: Yang Shi <yang.shi@linaro.org> --- arch/s390/mm/gup.c | 5 +++++ 1 file changed, 5 insertions(+) -- 2.0.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/