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),

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

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

    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;
    ),

    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->alloc_migratetype == __entry->fallback_migratetype)
);

#endif /* _TRACE_KMEM_H */

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