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9e813308a5
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>
88 lines
2 KiB
C
88 lines
2 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM thp
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#if !defined(_TRACE_THP_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_THP_H
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#include <linux/types.h>
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#include <linux/tracepoint.h>
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TRACE_EVENT(hugepage_invalidate,
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TP_PROTO(unsigned long addr, unsigned long pte),
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TP_ARGS(addr, pte),
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TP_STRUCT__entry(
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__field(unsigned long, addr)
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__field(unsigned long, pte)
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),
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TP_fast_assign(
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__entry->addr = addr;
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__entry->pte = pte;
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),
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TP_printk("hugepage invalidate at addr 0x%lx and pte = 0x%lx",
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__entry->addr, __entry->pte)
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);
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TRACE_EVENT(hugepage_set_pmd,
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TP_PROTO(unsigned long addr, unsigned long pmd),
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TP_ARGS(addr, pmd),
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TP_STRUCT__entry(
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__field(unsigned long, addr)
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__field(unsigned long, pmd)
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),
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TP_fast_assign(
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__entry->addr = addr;
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__entry->pmd = pmd;
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),
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TP_printk("Set pmd with 0x%lx with 0x%lx", __entry->addr, __entry->pmd)
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);
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TRACE_EVENT(hugepage_update,
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TP_PROTO(unsigned long addr, unsigned long pte, unsigned long clr, unsigned long set),
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TP_ARGS(addr, pte, clr, set),
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TP_STRUCT__entry(
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__field(unsigned long, addr)
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__field(unsigned long, pte)
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__field(unsigned long, clr)
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__field(unsigned long, set)
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),
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TP_fast_assign(
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__entry->addr = addr;
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__entry->pte = pte;
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__entry->clr = clr;
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__entry->set = set;
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),
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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)
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);
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TRACE_EVENT(hugepage_splitting,
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TP_PROTO(unsigned long addr, unsigned long pte),
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TP_ARGS(addr, pte),
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TP_STRUCT__entry(
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__field(unsigned long, addr)
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__field(unsigned long, pte)
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),
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TP_fast_assign(
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__entry->addr = addr;
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__entry->pte = pte;
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),
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TP_printk("hugepage splitting at addr 0x%lx and pte = 0x%lx",
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__entry->addr, __entry->pte)
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);
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#endif /* _TRACE_THP_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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