root/include/trace/events/kmem.h

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#undef TRACE_SYSTEM
#define TRACE_SYSTEM kmem

#if !defined(_TRACE_KMEM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_KMEM_H

#include <linux/types.h>
#include <linux/tracepoint.h>
#include <trace/events/gfpflags.h>

DECLARE_EVENT_CLASS(kmem_alloc,

        TP_PROTO(unsigned long call_site,
                 const void *ptr,
                 size_t bytes_req,
                 size_t bytes_alloc,
                 gfp_t gfp_flags),

        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags),

        TP_STRUCT__entry(
                __field(        unsigned long,  call_site       )
                __field(        const void *,   ptr             )
                __field(        size_t,         bytes_req       )
                __field(        size_t,         bytes_alloc     )
                __field(        gfp_t,          gfp_flags       )
        ),

        TP_fast_assign(
                __entry->call_site      = call_site;
                __entry->ptr            = ptr;
                __entry->bytes_req      = bytes_req;
                __entry->bytes_alloc    = bytes_alloc;
                __entry->gfp_flags      = gfp_flags;
        ),

        TP_printk("call_site=%lx ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s",
                __entry->call_site,
                __entry->ptr,
                __entry->bytes_req,
                __entry->bytes_alloc,
                show_gfp_flags(__entry->gfp_flags))
);

DEFINE_EVENT(kmem_alloc, kmalloc,

        TP_PROTO(unsigned long call_site, const void *ptr,
                 size_t bytes_req, size_t bytes_alloc, gfp_t gfp_flags),

        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags)
);

DEFINE_EVENT(kmem_alloc, kmem_cache_alloc,

        TP_PROTO(unsigned long call_site, const void *ptr,
                 size_t bytes_req, size_t bytes_alloc, gfp_t gfp_flags),

        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags)
);

DECLARE_EVENT_CLASS(kmem_alloc_node,

        TP_PROTO(unsigned long call_site,
                 const void *ptr,
                 size_t bytes_req,
                 size_t bytes_alloc,
                 gfp_t gfp_flags,
                 int node),

        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node),

        TP_STRUCT__entry(
                __field(        unsigned long,  call_site       )
                __field(        const void *,   ptr             )
                __field(        size_t,         bytes_req       )
                __field(        size_t,         bytes_alloc     )
                __field(        gfp_t,          gfp_flags       )
                __field(        int,            node            )
        ),

        TP_fast_assign(
                __entry->call_site      = call_site;
                __entry->ptr            = ptr;
                __entry->bytes_req      = bytes_req;
                __entry->bytes_alloc    = bytes_alloc;
                __entry->gfp_flags      = gfp_flags;
                __entry->node           = node;
        ),

        TP_printk("call_site=%lx ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s node=%d",
                __entry->call_site,
                __entry->ptr,
                __entry->bytes_req,
                __entry->bytes_alloc,
                show_gfp_flags(__entry->gfp_flags),
                __entry->node)
);

DEFINE_EVENT(kmem_alloc_node, kmalloc_node,

        TP_PROTO(unsigned long call_site, const void *ptr,
                 size_t bytes_req, size_t bytes_alloc,
                 gfp_t gfp_flags, int node),

        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node)
);

DEFINE_EVENT(kmem_alloc_node, kmem_cache_alloc_node,

        TP_PROTO(unsigned long call_site, const void *ptr,
                 size_t bytes_req, size_t bytes_alloc,
                 gfp_t gfp_flags, int node),

        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node)
);

DECLARE_EVENT_CLASS(kmem_free,

        TP_PROTO(unsigned long call_site, const void *ptr),

        TP_ARGS(call_site, ptr),

        TP_STRUCT__entry(
                __field(        unsigned long,  call_site       )
                __field(        const void *,   ptr             )
        ),

        TP_fast_assign(
                __entry->call_site      = call_site;
                __entry->ptr            = ptr;
        ),

        TP_printk("call_site=%lx ptr=%p", __entry->call_site, __entry->ptr)
);

DEFINE_EVENT(kmem_free, kfree,

        TP_PROTO(unsigned long call_site, const void *ptr),

        TP_ARGS(call_site, ptr)
);

DEFINE_EVENT(kmem_free, kmem_cache_free,

        TP_PROTO(unsigned long call_site, const void *ptr),

        TP_ARGS(call_site, ptr)
);

TRACE_EVENT(mm_page_free,

        TP_PROTO(struct page *page, unsigned int order),

        TP_ARGS(page, order),

        TP_STRUCT__entry(
                __field(        struct page *,  page            )
                __field(        unsigned int,   order           )
        ),

        TP_fast_assign(
                __entry->page           = page;
                __entry->order          = order;
        ),

        TP_printk("page=%p pfn=%lu order=%d",
                        __entry->page,
                        page_to_pfn(__entry->page),
                        __entry->order)
);

TRACE_EVENT(mm_page_free_batched,

        TP_PROTO(struct page *page, int cold),

        TP_ARGS(page, cold),

        TP_STRUCT__entry(
                __field(        struct page *,  page            )
                __field(        int,            cold            )
        ),

        TP_fast_assign(
                __entry->page           = page;
                __entry->cold           = cold;
        ),

        TP_printk("page=%p pfn=%lu order=0 cold=%d",
                        __entry->page,
                        page_to_pfn(__entry->page),
                        __entry->cold)
);

TRACE_EVENT(mm_page_alloc,

        TP_PROTO(struct page *page, unsigned int order,
                        gfp_t gfp_flags, int migratetype),

        TP_ARGS(page, order, gfp_flags, migratetype),

        TP_STRUCT__entry(
                __field(        struct page *,  page            )
                __field(        unsigned int,   order           )
                __field(        gfp_t,          gfp_flags       )
                __field(        int,            migratetype     )
        ),

        TP_fast_assign(
                __entry->page           = page;
                __entry->order          = order;
                __entry->gfp_flags      = gfp_flags;
                __entry->migratetype    = migratetype;
        ),

        TP_printk("page=%p pfn=%lu order=%d migratetype=%d gfp_flags=%s",
                __entry->page,
                __entry->page ? page_to_pfn(__entry->page) : 0,
                __entry->order,
                __entry->migratetype,
                show_gfp_flags(__entry->gfp_flags))
);

DECLARE_EVENT_CLASS(mm_page,

        TP_PROTO(struct page *page, unsigned int order, int migratetype),

        TP_ARGS(page, order, migratetype),

        TP_STRUCT__entry(
                __field(        struct page *,  page            )
                __field(        unsigned int,   order           )
                __field(        int,            migratetype     )
        ),

        TP_fast_assign(
                __entry->page           = page;
                __entry->order          = order;
                __entry->migratetype    = migratetype;
        ),

        TP_printk("page=%p pfn=%lu order=%u migratetype=%d percpu_refill=%d",
                __entry->page,
                __entry->page ? page_to_pfn(__entry->page) : 0,
                __entry->order,
                __entry->migratetype,
                __entry->order == 0)
);

DEFINE_EVENT(mm_page, mm_page_alloc_zone_locked,

        TP_PROTO(struct page *page, unsigned int order, int migratetype),

        TP_ARGS(page, order, migratetype)
);

DEFINE_EVENT_PRINT(mm_page, mm_page_pcpu_drain,

        TP_PROTO(struct page *page, unsigned int order, int migratetype),

        TP_ARGS(page, order, migratetype),

        TP_printk("page=%p pfn=%lu order=%d migratetype=%d",
                __entry->page, page_to_pfn(__entry->page),
                __entry->order, __entry->migratetype)
);

TRACE_EVENT(mm_page_alloc_extfrag,

        TP_PROTO(struct page *page,
                int alloc_order, int fallback_order,
                int alloc_migratetype, int fallback_migratetype, int new_migratetype),

        TP_ARGS(page,
                alloc_order, fallback_order,
                alloc_migratetype, fallback_migratetype, new_migratetype),

        TP_STRUCT__entry(
                __field(        struct page *,  page                    )
                __field(        int,            alloc_order             )
                __field(        int,            fallback_order          )
                __field(        int,            alloc_migratetype       )
                __field(        int,            fallback_migratetype    )
                __field(        int,            change_ownership        )
        ),

        TP_fast_assign(
                __entry->page                   = page;
                __entry->alloc_order            = alloc_order;
                __entry->fallback_order         = fallback_order;
                __entry->alloc_migratetype      = alloc_migratetype;
                __entry->fallback_migratetype   = fallback_migratetype;
                __entry->change_ownership       = (new_migratetype == alloc_migratetype);
        ),

        TP_printk("page=%p pfn=%lu alloc_order=%d fallback_order=%d pageblock_order=%d alloc_migratetype=%d fallback_migratetype=%d fragmenting=%d change_ownership=%d",
                __entry->page,
                page_to_pfn(__entry->page),
                __entry->alloc_order,
                __entry->fallback_order,
                pageblock_order,
                __entry->alloc_migratetype,
                __entry->fallback_migratetype,
                __entry->fallback_order < pageblock_order,
                __entry->change_ownership)
);

#endif /* _TRACE_KMEM_H */

/* This part must be outside protection */
#include <trace/define_trace.h>

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