include/trace/events/kmem.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM kmem
   4
   5 #if !defined(_TRACE_KMEM_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_KMEM_H
   7
   8 #include <linux/types.h>
   9 #include <linux/tracepoint.h>
  10 #include <trace/events/mmflags.h>
  11
  12 DECLARE_EVENT_CLASS(kmem_alloc,
  13
  14         TP_PROTO(unsigned long call_site,
  15                  const void *ptr,
  16                  size_t bytes_req,
  17                  size_t bytes_alloc,
  18                  gfp_t gfp_flags),
  19
  20         TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags),
  21
  22         TP_STRUCT__entry(
  23                 __field(        unsigned long,  call_site       )
  24                 __field(        const void *,   ptr             )
  25                 __field(        size_t,         bytes_req       )
  26                 __field(        size_t,         bytes_alloc     )
  27                 __field(        gfp_t,          gfp_flags       )
  28         ),
  29
  30         TP_fast_assign(
  31                 __entry->call_site      = call_site;
  32                 __entry->ptr            = ptr;
  33                 __entry->bytes_req      = bytes_req;
  34                 __entry->bytes_alloc    = bytes_alloc;
  35                 __entry->gfp_flags      = gfp_flags;
  36         ),
  37
  38         TP_printk("call_site=%pS ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s",
  39                 (void *)__entry->call_site,
  40                 __entry->ptr,
  41                 __entry->bytes_req,
  42                 __entry->bytes_alloc,
  43                 show_gfp_flags(__entry->gfp_flags))
  44 );
  45
  46 DEFINE_EVENT(kmem_alloc, kmalloc,
  47
  48         TP_PROTO(unsigned long call_site, const void *ptr,
  49                  size_t bytes_req, size_t bytes_alloc, gfp_t gfp_flags),
  50
  51         TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags)
  52 );
  53
  54 DEFINE_EVENT(kmem_alloc, kmem_cache_alloc,
  55
  56         TP_PROTO(unsigned long call_site, const void *ptr,
  57                  size_t bytes_req, size_t bytes_alloc, gfp_t gfp_flags),
  58
  59         TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags)
  60 );
  61
  62 DECLARE_EVENT_CLASS(kmem_alloc_node,
  63
  64         TP_PROTO(unsigned long call_site,
  65                  const void *ptr,
  66                  size_t bytes_req,
  67                  size_t bytes_alloc,
  68                  gfp_t gfp_flags,
  69                  int node),
  70
  71         TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node),
  72
  73         TP_STRUCT__entry(
  74                 __field(        unsigned long,  call_site       )
  75                 __field(        const void *,   ptr             )
  76                 __field(        size_t,         bytes_req       )
  77                 __field(        size_t,         bytes_alloc     )
  78                 __field(        gfp_t,          gfp_flags       )
  79                 __field(        int,            node            )
  80         ),
  81
  82         TP_fast_assign(
  83                 __entry->call_site      = call_site;
  84                 __entry->ptr            = ptr;
  85                 __entry->bytes_req      = bytes_req;
  86                 __entry->bytes_alloc    = bytes_alloc;
  87                 __entry->gfp_flags      = gfp_flags;
  88                 __entry->node           = node;
  89         ),
  90
  91         TP_printk("call_site=%pS ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s node=%d",
  92                 (void *)__entry->call_site,
  93                 __entry->ptr,
  94                 __entry->bytes_req,
  95                 __entry->bytes_alloc,
  96                 show_gfp_flags(__entry->gfp_flags),
  97                 __entry->node)
  98 );
  99
 100 DEFINE_EVENT(kmem_alloc_node, kmalloc_node,
 101
 102         TP_PROTO(unsigned long call_site, const void *ptr,
 103                  size_t bytes_req, size_t bytes_alloc,
 104                  gfp_t gfp_flags, int node),
 105
 106         TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node)
 107 );
 108
 109 DEFINE_EVENT(kmem_alloc_node, kmem_cache_alloc_node,
 110
 111         TP_PROTO(unsigned long call_site, const void *ptr,
 112                  size_t bytes_req, size_t bytes_alloc,
 113                  gfp_t gfp_flags, int node),
 114
 115         TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node)
 116 );
 117
 118 DECLARE_EVENT_CLASS(kmem_free,
 119
 120         TP_PROTO(unsigned long call_site, const void *ptr),
 121
 122         TP_ARGS(call_site, ptr),
 123
 124         TP_STRUCT__entry(
 125                 __field(        unsigned long,  call_site       )
 126                 __field(        const void *,   ptr             )
 127         ),
 128
 129         TP_fast_assign(
 130                 __entry->call_site      = call_site;
 131                 __entry->ptr            = ptr;
 132         ),
 133
 134         TP_printk("call_site=%pS ptr=%p",
 135                   (void *)__entry->call_site, __entry->ptr)
 136 );
 137
 138 DEFINE_EVENT(kmem_free, kfree,
 139
 140         TP_PROTO(unsigned long call_site, const void *ptr),
 141
 142         TP_ARGS(call_site, ptr)
 143 );
 144
 145 DEFINE_EVENT(kmem_free, kmem_cache_free,
 146
 147         TP_PROTO(unsigned long call_site, const void *ptr),
 148
 149         TP_ARGS(call_site, ptr)
 150 );
 151
 152 TRACE_EVENT(mm_page_free,
 153
 154         TP_PROTO(struct page *page, unsigned int order),
 155
 156         TP_ARGS(page, order),
 157
 158         TP_STRUCT__entry(
 159                 __field(        unsigned long,  pfn             )
 160                 __field(        unsigned int,   order           )
 161         ),
 162
 163         TP_fast_assign(
 164                 __entry->pfn            = page_to_pfn(page);
 165                 __entry->order          = order;
 166         ),
 167
 168         TP_printk("page=%p pfn=%lu order=%d",
 169                         pfn_to_page(__entry->pfn),
 170                         __entry->pfn,
 171                         __entry->order)
 172 );
 173
 174 TRACE_EVENT(mm_page_free_batched,
 175
 176         TP_PROTO(struct page *page),
 177
 178         TP_ARGS(page),
 179
 180         TP_STRUCT__entry(
 181                 __field(        unsigned long,  pfn             )
 182         ),
 183
 184         TP_fast_assign(
 185                 __entry->pfn            = page_to_pfn(page);
 186         ),
 187
 188         TP_printk("page=%p pfn=%lu order=0",
 189                         pfn_to_page(__entry->pfn),
 190                         __entry->pfn)
 191 );
 192
 193 TRACE_EVENT(mm_page_alloc,
 194
 195         TP_PROTO(struct page *page, unsigned int order,
 196                         gfp_t gfp_flags, int migratetype),
 197
 198         TP_ARGS(page, order, gfp_flags, migratetype),
 199
 200         TP_STRUCT__entry(
 201                 __field(        unsigned long,  pfn             )
 202                 __field(        unsigned int,   order           )
 203                 __field(        gfp_t,          gfp_flags       )
 204                 __field(        int,            migratetype     )
 205         ),
 206
 207         TP_fast_assign(
 208                 __entry->pfn            = page ? page_to_pfn(page) : -1UL;
 209                 __entry->order          = order;
 210                 __entry->gfp_flags      = gfp_flags;
 211                 __entry->migratetype    = migratetype;
 212         ),
 213
 214         TP_printk("page=%p pfn=%lu order=%d migratetype=%d gfp_flags=%s",
 215                 __entry->pfn != -1UL ? pfn_to_page(__entry->pfn) : NULL,
 216                 __entry->pfn != -1UL ? __entry->pfn : 0,
 217                 __entry->order,
 218                 __entry->migratetype,
 219                 show_gfp_flags(__entry->gfp_flags))
 220 );
 221
 222 DECLARE_EVENT_CLASS(mm_page,
 223
 224         TP_PROTO(struct page *page, unsigned int order, int migratetype),
 225
 226         TP_ARGS(page, order, migratetype),
 227
 228         TP_STRUCT__entry(
 229                 __field(        unsigned long,  pfn             )
 230                 __field(        unsigned int,   order           )
 231                 __field(        int,            migratetype     )
 232         ),
 233
 234         TP_fast_assign(
 235                 __entry->pfn            = page ? page_to_pfn(page) : -1UL;
 236                 __entry->order          = order;
 237                 __entry->migratetype    = migratetype;
 238         ),
 239
 240         TP_printk("page=%p pfn=%lu order=%u migratetype=%d percpu_refill=%d",
 241                 __entry->pfn != -1UL ? pfn_to_page(__entry->pfn) : NULL,
 242                 __entry->pfn != -1UL ? __entry->pfn : 0,
 243                 __entry->order,
 244                 __entry->migratetype,
 245                 __entry->order == 0)
 246 );
 247
 248 DEFINE_EVENT(mm_page, mm_page_alloc_zone_locked,
 249
 250         TP_PROTO(struct page *page, unsigned int order, int migratetype),
 251
 252         TP_ARGS(page, order, migratetype)
 253 );
 254
 255 TRACE_EVENT(mm_page_pcpu_drain,
 256
 257         TP_PROTO(struct page *page, unsigned int order, int migratetype),
 258
 259         TP_ARGS(page, order, migratetype),
 260
 261         TP_STRUCT__entry(
 262                 __field(        unsigned long,  pfn             )
 263                 __field(        unsigned int,   order           )
 264                 __field(        int,            migratetype     )
 265         ),
 266
 267         TP_fast_assign(
 268                 __entry->pfn            = page ? page_to_pfn(page) : -1UL;
 269                 __entry->order          = order;
 270                 __entry->migratetype    = migratetype;
 271         ),
 272
 273         TP_printk("page=%p pfn=%lu order=%d migratetype=%d",
 274                 pfn_to_page(__entry->pfn), __entry->pfn,
 275                 __entry->order, __entry->migratetype)
 276 );
 277
 278 TRACE_EVENT(mm_page_alloc_extfrag,
 279
 280         TP_PROTO(struct page *page,
 281                 int alloc_order, int fallback_order,
 282                 int alloc_migratetype, int fallback_migratetype),
 283
 284         TP_ARGS(page,
 285                 alloc_order, fallback_order,
 286                 alloc_migratetype, fallback_migratetype),
 287
 288         TP_STRUCT__entry(
 289                 __field(        unsigned long,  pfn                     )
 290                 __field(        int,            alloc_order             )
 291                 __field(        int,            fallback_order          )
 292                 __field(        int,            alloc_migratetype       )
 293                 __field(        int,            fallback_migratetype    )
 294                 __field(        int,            change_ownership        )
 295         ),
 296
 297         TP_fast_assign(
 298                 __entry->pfn                    = page_to_pfn(page);
 299                 __entry->alloc_order            = alloc_order;
 300                 __entry->fallback_order         = fallback_order;
 301                 __entry->alloc_migratetype      = alloc_migratetype;
 302                 __entry->fallback_migratetype   = fallback_migratetype;
 303                 __entry->change_ownership       = (alloc_migratetype ==
 304                                         get_pageblock_migratetype(page));
 305         ),
 306
 307         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",
 308                 pfn_to_page(__entry->pfn),
 309                 __entry->pfn,
 310                 __entry->alloc_order,
 311                 __entry->fallback_order,
 312                 pageblock_order,
 313                 __entry->alloc_migratetype,
 314                 __entry->fallback_migratetype,
 315                 __entry->fallback_order < pageblock_order,
 316                 __entry->change_ownership)
 317 );
 318
 319 /*
 320  * Required for uniquely and securely identifying mm in rss_stat tracepoint.
 321  */
 322 #ifndef __PTR_TO_HASHVAL
 323 static unsigned int __maybe_unused mm_ptr_to_hash(const void *ptr)
 324 {
 325         int ret;
 326         unsigned long hashval;
 327
 328         ret = ptr_to_hashval(ptr, &hashval);
 329         if (ret)
 330                 return 0;
 331
 332         /* The hashed value is only 32-bit */
 333         return (unsigned int)hashval;
 334 }
 335 #define __PTR_TO_HASHVAL
 336 #endif
 337
 338 TRACE_EVENT(rss_stat,
 339
 340         TP_PROTO(struct mm_struct *mm,
 341                 int member,
 342                 long count),
 343
 344         TP_ARGS(mm, member, count),
 345
 346         TP_STRUCT__entry(
 347                 __field(unsigned int, mm_id)
 348                 __field(unsigned int, curr)
 349                 __field(int, member)
 350                 __field(long, size)
 351         ),
 352
 353         TP_fast_assign(
 354                 __entry->mm_id = mm_ptr_to_hash(mm);
 355                 __entry->curr = !!(current->mm == mm);
 356                 __entry->member = member;
 357                 __entry->size = (count << PAGE_SHIFT);
 358         ),
 359
 360         TP_printk("mm_id=%u curr=%d member=%d size=%ldB",
 361                 __entry->mm_id,
 362                 __entry->curr,
 363                 __entry->member,
 364                 __entry->size)
 365         );
 366 #endif /* _TRACE_KMEM_H */
 367
 368 /* This part must be outside protection */
 369 #include <trace/define_trace.h>