LXR linux/include/trace/events/kmem.h

   1#undef TRACE_SYSTEM
   2#define TRACE_SYSTEM kmem
   3
   4#if !defined(_TRACE_KMEM_H) || defined(TRACE_HEADER_MULTI_READ)
   5#define _TRACE_KMEM_H
   6
   7#include <linux/types.h>
   8#include <linux/tracepoint.h>
   9#include <trace/events/gfpflags.h>
  10
  11DECLARE_EVENT_CLASS(kmem_alloc,
  12
  13        TP_PROTO(unsigned long call_site,
  14                 const void *ptr,
  15                 size_t bytes_req,
  16                 size_t bytes_alloc,
  17                 gfp_t gfp_flags),
  18
  19        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags),
  20
  21        TP_STRUCT__entry(
  22                __field(        unsigned long,  call_site       )
  23                __field(        const void *,   ptr             )
  24                __field(        size_t,         bytes_req       )
  25                __field(        size_t,         bytes_alloc     )
  26                __field(        gfp_t,          gfp_flags       )
  27        ),
  28
  29        TP_fast_assign(
  30                __entry->call_site      = call_site;
  31                __entry->ptr            = ptr;
  32                __entry->bytes_req      = bytes_req;
  33                __entry->bytes_alloc    = bytes_alloc;
  34                __entry->gfp_flags      = gfp_flags;
  35        ),
  36
  37        TP_printk("call_site=%lx ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s",
  38                __entry->call_site,
  39                __entry->ptr,
  40                __entry->bytes_req,
  41                __entry->bytes_alloc,
  42                show_gfp_flags(__entry->gfp_flags))
  43);
  44
  45DEFINE_EVENT(kmem_alloc, kmalloc,
  46
  47        TP_PROTO(unsigned long call_site, const void *ptr,
  48                 size_t bytes_req, size_t bytes_alloc, gfp_t gfp_flags),
  49
  50        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags)
  51);
  52
  53DEFINE_EVENT(kmem_alloc, kmem_cache_alloc,
  54
  55        TP_PROTO(unsigned long call_site, const void *ptr,
  56                 size_t bytes_req, size_t bytes_alloc, gfp_t gfp_flags),
  57
  58        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags)
  59);
  60
  61DECLARE_EVENT_CLASS(kmem_alloc_node,
  62
  63        TP_PROTO(unsigned long call_site,
  64                 const void *ptr,
  65                 size_t bytes_req,
  66                 size_t bytes_alloc,
  67                 gfp_t gfp_flags,
  68                 int node),
  69
  70        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node),
  71
  72        TP_STRUCT__entry(
  73                __field(        unsigned long,  call_site       )
  74                __field(        const void *,   ptr             )
  75                __field(        size_t,         bytes_req       )
  76                __field(        size_t,         bytes_alloc     )
  77                __field(        gfp_t,          gfp_flags       )
  78                __field(        int,            node            )
  79        ),
  80
  81        TP_fast_assign(
  82                __entry->call_site      = call_site;
  83                __entry->ptr            = ptr;
  84                __entry->bytes_req      = bytes_req;
  85                __entry->bytes_alloc    = bytes_alloc;
  86                __entry->gfp_flags      = gfp_flags;
  87                __entry->node           = node;
  88        ),
  89
  90        TP_printk("call_site=%lx ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s node=%d",
  91                __entry->call_site,
  92                __entry->ptr,
  93                __entry->bytes_req,
  94                __entry->bytes_alloc,
  95                show_gfp_flags(__entry->gfp_flags),
  96                __entry->node)
  97);
  98
  99DEFINE_EVENT(kmem_alloc_node, kmalloc_node,
 100
 101        TP_PROTO(unsigned long call_site, const void *ptr,
 102                 size_t bytes_req, size_t bytes_alloc,
 103                 gfp_t gfp_flags, int node),
 104
 105        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node)
 106);
 107
 108DEFINE_EVENT(kmem_alloc_node, kmem_cache_alloc_node,
 109
 110        TP_PROTO(unsigned long call_site, const void *ptr,
 111                 size_t bytes_req, size_t bytes_alloc,
 112                 gfp_t gfp_flags, int node),
 113
 114        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node)
 115);
 116
 117DECLARE_EVENT_CLASS(kmem_free,
 118
 119        TP_PROTO(unsigned long call_site, const void *ptr),
 120
 121        TP_ARGS(call_site, ptr),
 122
 123        TP_STRUCT__entry(
 124                __field(        unsigned long,  call_site       )
 125                __field(        const void *,   ptr             )
 126        ),
 127
 128        TP_fast_assign(
 129                __entry->call_site      = call_site;
 130                __entry->ptr            = ptr;
 131        ),
 132
 133        TP_printk("call_site=%lx ptr=%p", __entry->call_site, __entry->ptr)
 134);
 135
 136DEFINE_EVENT(kmem_free, kfree,
 137
 138        TP_PROTO(unsigned long call_site, const void *ptr),
 139
 140        TP_ARGS(call_site, ptr)
 141);
 142
 143DEFINE_EVENT_CONDITION(kmem_free, kmem_cache_free,
 144
 145        TP_PROTO(unsigned long call_site, const void *ptr),
 146
 147        TP_ARGS(call_site, ptr),
 148
 149        /*
 150         * This trace can be potentially called from an offlined cpu.
 151         * Since trace points use RCU and RCU should not be used from
 152         * offline cpus, filter such calls out.
 153         * While this trace can be called from a preemptable section,
 154         * it has no impact on the condition since tasks can migrate
 155         * only from online cpus to other online cpus. Thus its safe
 156         * to use raw_smp_processor_id.
 157         */
 158        TP_CONDITION(cpu_online(raw_smp_processor_id()))
 159);
 160
 161TRACE_EVENT_CONDITION(mm_page_free,
 162
 163        TP_PROTO(struct page *page, unsigned int order),
 164
 165        TP_ARGS(page, order),
 166
 167
 168        /*
 169         * This trace can be potentially called from an offlined cpu.
 170         * Since trace points use RCU and RCU should not be used from
 171         * offline cpus, filter such calls out.
 172         * While this trace can be called from a preemptable section,
 173         * it has no impact on the condition since tasks can migrate
 174         * only from online cpus to other online cpus. Thus its safe
 175         * to use raw_smp_processor_id.
 176         */
 177        TP_CONDITION(cpu_online(raw_smp_processor_id())),
 178
 179        TP_STRUCT__entry(
 180                __field(        unsigned long,  pfn             )
 181                __field(        unsigned int,   order           )
 182        ),
 183
 184        TP_fast_assign(
 185                __entry->pfn            = page_to_pfn(page);
 186                __entry->order          = order;
 187        ),
 188
 189        TP_printk("page=%p pfn=%lu order=%d",
 190                        pfn_to_page(__entry->pfn),
 191                        __entry->pfn,
 192                        __entry->order)
 193);
 194
 195TRACE_EVENT(mm_page_free_batched,
 196
 197        TP_PROTO(struct page *page, int cold),
 198
 199        TP_ARGS(page, cold),
 200
 201        TP_STRUCT__entry(
 202                __field(        unsigned long,  pfn             )
 203                __field(        int,            cold            )
 204        ),
 205
 206        TP_fast_assign(
 207                __entry->pfn            = page_to_pfn(page);
 208                __entry->cold           = cold;
 209        ),
 210
 211        TP_printk("page=%p pfn=%lu order=0 cold=%d",
 212                        pfn_to_page(__entry->pfn),
 213                        __entry->pfn,
 214                        __entry->cold)
 215);
 216
 217TRACE_EVENT(mm_page_alloc,
 218
 219        TP_PROTO(struct page *page, unsigned int order,
 220                        gfp_t gfp_flags, int migratetype),
 221
 222        TP_ARGS(page, order, gfp_flags, migratetype),
 223
 224        TP_STRUCT__entry(
 225                __field(        unsigned long,  pfn             )
 226                __field(        unsigned int,   order           )
 227                __field(        gfp_t,          gfp_flags       )
 228                __field(        int,            migratetype     )
 229        ),
 230
 231        TP_fast_assign(
 232                __entry->pfn            = page ? page_to_pfn(page) : -1UL;
 233                __entry->order          = order;
 234                __entry->gfp_flags      = gfp_flags;
 235                __entry->migratetype    = migratetype;
 236        ),
 237
 238        TP_printk("page=%p pfn=%lu order=%d migratetype=%d gfp_flags=%s",
 239                __entry->pfn != -1UL ? pfn_to_page(__entry->pfn) : NULL,
 240                __entry->pfn != -1UL ? __entry->pfn : 0,
 241                __entry->order,
 242                __entry->migratetype,
 243                show_gfp_flags(__entry->gfp_flags))
 244);
 245
 246DECLARE_EVENT_CLASS(mm_page,
 247
 248        TP_PROTO(struct page *page, unsigned int order, int migratetype),
 249
 250        TP_ARGS(page, order, migratetype),
 251
 252        TP_STRUCT__entry(
 253                __field(        unsigned long,  pfn             )
 254                __field(        unsigned int,   order           )
 255                __field(        int,            migratetype     )
 256        ),
 257
 258        TP_fast_assign(
 259                __entry->pfn            = page ? page_to_pfn(page) : -1UL;
 260                __entry->order          = order;
 261                __entry->migratetype    = migratetype;
 262        ),
 263
 264        TP_printk("page=%p pfn=%lu order=%u migratetype=%d percpu_refill=%d",
 265                __entry->pfn != -1UL ? pfn_to_page(__entry->pfn) : NULL,
 266                __entry->pfn != -1UL ? __entry->pfn : 0,
 267                __entry->order,
 268                __entry->migratetype,
 269                __entry->order == 0)
 270);
 271
 272DEFINE_EVENT(mm_page, mm_page_alloc_zone_locked,
 273
 274        TP_PROTO(struct page *page, unsigned int order, int migratetype),
 275
 276        TP_ARGS(page, order, migratetype)
 277);
 278
 279TRACE_EVENT_CONDITION(mm_page_pcpu_drain,
 280
 281        TP_PROTO(struct page *page, unsigned int order, int migratetype),
 282
 283        TP_ARGS(page, order, migratetype),
 284
 285        /*
 286         * This trace can be potentially called from an offlined cpu.
 287         * Since trace points use RCU and RCU should not be used from
 288         * offline cpus, filter such calls out.
 289         * While this trace can be called from a preemptable section,
 290         * it has no impact on the condition since tasks can migrate
 291         * only from online cpus to other online cpus. Thus its safe
 292         * to use raw_smp_processor_id.
 293         */
 294        TP_CONDITION(cpu_online(raw_smp_processor_id())),
 295
 296        TP_STRUCT__entry(
 297                __field(        unsigned long,  pfn             )
 298                __field(        unsigned int,   order           )
 299                __field(        int,            migratetype     )
 300        ),
 301
 302        TP_fast_assign(
 303                __entry->pfn            = page ? page_to_pfn(page) : -1UL;
 304                __entry->order          = order;
 305                __entry->migratetype    = migratetype;
 306        ),
 307
 308        TP_printk("page=%p pfn=%lu order=%d migratetype=%d",
 309                pfn_to_page(__entry->pfn), __entry->pfn,
 310                __entry->order, __entry->migratetype)
 311);
 312
 313TRACE_EVENT(mm_page_alloc_extfrag,
 314
 315        TP_PROTO(struct page *page,
 316                int alloc_order, int fallback_order,
 317                int alloc_migratetype, int fallback_migratetype),
 318
 319        TP_ARGS(page,
 320                alloc_order, fallback_order,
 321                alloc_migratetype, fallback_migratetype),
 322
 323        TP_STRUCT__entry(
 324                __field(        unsigned long,  pfn                     )
 325                __field(        int,            alloc_order             )
 326                __field(        int,            fallback_order          )
 327                __field(        int,            alloc_migratetype       )
 328                __field(        int,            fallback_migratetype    )
 329                __field(        int,            change_ownership        )
 330        ),
 331
 332        TP_fast_assign(
 333                __entry->pfn                    = page_to_pfn(page);
 334                __entry->alloc_order            = alloc_order;
 335                __entry->fallback_order         = fallback_order;
 336                __entry->alloc_migratetype      = alloc_migratetype;
 337                __entry->fallback_migratetype   = fallback_migratetype;
 338                __entry->change_ownership       = (alloc_migratetype ==
 339                                        get_pageblock_migratetype(page));
 340        ),
 341
 342        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",
 343                pfn_to_page(__entry->pfn),
 344                __entry->pfn,
 345                __entry->alloc_order,
 346                __entry->fallback_order,
 347                pageblock_order,
 348                __entry->alloc_migratetype,
 349                __entry->fallback_migratetype,
 350                __entry->fallback_order < pageblock_order,
 351                __entry->change_ownership)
 352);
 353
 354#endif /* _TRACE_KMEM_H */
 355
 356/* This part must be outside protection */
 357#include <trace/define_trace.h>
 358