linux-stable/include/trace/events/thp.h
Aneesh Kumar K.V 9e813308a5 powerpc/thp: Add tracepoints to track hugepage invalidate
Add tracepoint to track hugepage invalidate. This help us
in debugging difficult to track bugs.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-08-13 18:20:42 +10:00

88 lines
2 KiB
C

#undef TRACE_SYSTEM
#define TRACE_SYSTEM thp
#if !defined(_TRACE_THP_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_THP_H
#include <linux/types.h>
#include <linux/tracepoint.h>
TRACE_EVENT(hugepage_invalidate,
TP_PROTO(unsigned long addr, unsigned long pte),
TP_ARGS(addr, pte),
TP_STRUCT__entry(
__field(unsigned long, addr)
__field(unsigned long, pte)
),
TP_fast_assign(
__entry->addr = addr;
__entry->pte = pte;
),
TP_printk("hugepage invalidate at addr 0x%lx and pte = 0x%lx",
__entry->addr, __entry->pte)
);
TRACE_EVENT(hugepage_set_pmd,
TP_PROTO(unsigned long addr, unsigned long pmd),
TP_ARGS(addr, pmd),
TP_STRUCT__entry(
__field(unsigned long, addr)
__field(unsigned long, pmd)
),
TP_fast_assign(
__entry->addr = addr;
__entry->pmd = pmd;
),
TP_printk("Set pmd with 0x%lx with 0x%lx", __entry->addr, __entry->pmd)
);
TRACE_EVENT(hugepage_update,
TP_PROTO(unsigned long addr, unsigned long pte, unsigned long clr, unsigned long set),
TP_ARGS(addr, pte, clr, set),
TP_STRUCT__entry(
__field(unsigned long, addr)
__field(unsigned long, pte)
__field(unsigned long, clr)
__field(unsigned long, set)
),
TP_fast_assign(
__entry->addr = addr;
__entry->pte = pte;
__entry->clr = clr;
__entry->set = set;
),
TP_printk("hugepage update at addr 0x%lx and pte = 0x%lx clr = 0x%lx, set = 0x%lx", __entry->addr, __entry->pte, __entry->clr, __entry->set)
);
TRACE_EVENT(hugepage_splitting,
TP_PROTO(unsigned long addr, unsigned long pte),
TP_ARGS(addr, pte),
TP_STRUCT__entry(
__field(unsigned long, addr)
__field(unsigned long, pte)
),
TP_fast_assign(
__entry->addr = addr;
__entry->pte = pte;
),
TP_printk("hugepage splitting at addr 0x%lx and pte = 0x%lx",
__entry->addr, __entry->pte)
);
#endif /* _TRACE_THP_H */
/* This part must be outside protection */
#include <trace/define_trace.h>