[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: [PATCH 07/15] xen/trace: add xen_pgd_(un)pin tracepoints
On 06/20/2011 05:28 PM, Steven Rostedt wrote: > On Mon, 2011-06-20 at 15:15 -0700, Jeremy Fitzhardinge wrote: >> From: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> >> >> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> >> --- >> arch/x86/xen/mmu.c | 4 ++++ >> include/trace/events/xen.h | 24 ++++++++++++++++++++++++ >> 2 files changed, 28 insertions(+), 0 deletions(-) >> >> diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c >> index 84c796f..8aaa398 100644 >> --- a/arch/x86/xen/mmu.c >> +++ b/arch/x86/xen/mmu.c >> @@ -884,6 +884,8 @@ static int xen_pin_page(struct mm_struct *mm, struct >> page *page, >> read-only, and can be pinned. */ >> static void __xen_pgd_pin(struct mm_struct *mm, pgd_t *pgd) >> { >> + trace_xen_mmu_pgd_pin(mm, pgd); >> + >> xen_mc_batch(); >> >> if (__xen_pgd_walk(mm, pgd, xen_pin_page, USER_LIMIT)) { >> @@ -1009,6 +1011,8 @@ static int xen_unpin_page(struct mm_struct *mm, struct >> page *page, >> /* Release a pagetables pages back as normal RW */ >> static void __xen_pgd_unpin(struct mm_struct *mm, pgd_t *pgd) >> { >> + trace_xen_mmu_pgd_unpin(mm, pgd); >> + >> xen_mc_batch(); >> >> xen_do_pin(MMUEXT_UNPIN_TABLE, PFN_DOWN(__pa(pgd))); >> diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h >> index 16edcb7..5811c24 100644 >> --- a/include/trace/events/xen.h >> +++ b/include/trace/events/xen.h >> @@ -381,6 +381,30 @@ TRACE_EVENT(xen_mmu_release_ptpage, >> __entry->pinned ? "" : "un") >> ); >> >> +TRACE_EVENT(xen_mmu_pgd_pin, >> + TP_PROTO(struct mm_struct *mm, pgd_t *pgd), >> + TP_ARGS(mm, pgd), >> + TP_STRUCT__entry( >> + __field(struct mm_struct *, mm) >> + __field(pgd_t *, pgd) >> + ), >> + TP_fast_assign(__entry->mm = mm; >> + __entry->pgd = pgd), >> + TP_printk("mm %p pgd %p", __entry->mm, __entry->pgd) >> + ); >> + >> +TRACE_EVENT(xen_mmu_pgd_unpin, >> + TP_PROTO(struct mm_struct *mm, pgd_t *pgd), >> + TP_ARGS(mm, pgd), >> + TP_STRUCT__entry( >> + __field(struct mm_struct *, mm) >> + __field(pgd_t *, pgd) >> + ), >> + TP_fast_assign(__entry->mm = mm; >> + __entry->pgd = pgd), >> + TP_printk("mm %p pgd %p", __entry->mm, __entry->pgd) >> + ); >> + >> #endif /* _TRACE_XEN_H */ > > Looks like there's lots of candidates for DECLARE_EVENT_CLASS() and > DEFINE_EVENT()s. Thanks for the pointer, that cleans things up a bit. J _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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