Messages in this thread Patch in this message | | | From | Yang Shi <> | Subject | [PATCH v4 7/7] sparc64: mm/gup: add gup trace points | Date | Wed, 9 Dec 2015 09:29:24 -0800 |
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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 | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c index 2e5c4fc..d9f573c 100644 --- a/arch/sparc/mm/gup.c +++ b/arch/sparc/mm/gup.c @@ -12,6 +12,9 @@ #include <linux/rwsem.h> #include <asm/pgtable.h> +#define CREATE_TRACE_POINTS +#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 +177,8 @@ 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 +241,8 @@ 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; -- 2.0.2
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