diff options
| author | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-12-17 15:31:23 -0800 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2011-07-18 15:43:27 -0700 |
| commit | 5f94fb5b8edf29bba06e2cd05f9d3a80a5dfb9bc (patch) | |
| tree | 180fb7320f840a51ec64d349bbeeaaba0cae8a7c | |
| parent | c2ba050d2e5638774571ea0ad0375a1c17c7b04e (diff) | |
xen/trace: add xen_pgd_(un)pin tracepoints
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| -rw-r--r-- | arch/x86/xen/mmu.c | 4 | ||||
| -rw-r--r-- | 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 f2160997287e..5dfa90a7ad18 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -885,6 +885,8 @@ 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)) { @@ -1010,6 +1012,8 @@ 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 f46fdb4afb89..0b6056de2b00 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 */ /* This part must be outside protection */ |