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99e8ea6cd2
Add trace events for cma_alloc() and cma_release(). The cma_alloc tracepoint is used both for successful and failed allocations, in case of allocation failure pfn=-1UL is stored and printed. Signed-off-by: Stefan Strogin <stefan.strogin@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Michal Nazarewicz <mpn@google.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM cma
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#if !defined(_TRACE_CMA_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_CMA_H
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#include <linux/types.h>
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#include <linux/tracepoint.h>
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TRACE_EVENT(cma_alloc,
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TP_PROTO(unsigned long pfn, const struct page *page,
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unsigned int count, unsigned int align),
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TP_ARGS(pfn, page, count, align),
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TP_STRUCT__entry(
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__field(unsigned long, pfn)
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__field(const struct page *, page)
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__field(unsigned int, count)
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__field(unsigned int, align)
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),
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TP_fast_assign(
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__entry->pfn = pfn;
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__entry->page = page;
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__entry->count = count;
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__entry->align = align;
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),
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TP_printk("pfn=%lx page=%p count=%u align=%u",
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__entry->pfn,
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__entry->page,
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__entry->count,
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__entry->align)
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);
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TRACE_EVENT(cma_release,
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TP_PROTO(unsigned long pfn, const struct page *page,
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unsigned int count),
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TP_ARGS(pfn, page, count),
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TP_STRUCT__entry(
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__field(unsigned long, pfn)
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__field(const struct page *, page)
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__field(unsigned int, count)
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),
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TP_fast_assign(
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__entry->pfn = pfn;
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__entry->page = page;
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__entry->count = count;
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),
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TP_printk("pfn=%lx page=%p count=%u",
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__entry->pfn,
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__entry->page,
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__entry->count)
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);
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#endif /* _TRACE_CMA_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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