Messages in this thread Patch in this message | | | From | Yang Shi <> | Subject | [PATCH V2 3/7] x86: mm/gup: add gup trace points | Date | Wed, 2 Dec 2015 14:53:29 -0800 |
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Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Signed-off-by: Yang Shi <yang.shi@linaro.org> --- arch/x86/mm/gup.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c index ae9a37b..ed6cca9 100644 --- a/arch/x86/mm/gup.c +++ b/arch/x86/mm/gup.c @@ -10,6 +10,9 @@ #include <linux/highmem.h> #include <linux/swap.h> +#define CREATE_TRACE_POINTS +#include <trace/events/gup.h>> + #include <asm/pgtable.h> static inline pte_t gup_get_pte(pte_t *ptep) @@ -270,6 +273,8 @@ 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, write, pages); + /* * XXX: batch / limit 'nr', to avoid large irq off latency * needs some instrumenting to determine the common sizes used by @@ -342,6 +347,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, goto slow_irqon; #endif + trace_gup_get_user_pages_fast(start, nr_pages, write, pages); + /* * XXX: batch / limit 'nr', to avoid large irq off latency * needs some instrumenting to determine the common sizes used by -- 2.0.2
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