struct perf_event_mmap_page has members called "index" and "cap_user_rdpmc". Spell them correctly in the examples.
Showing the changes to include/uapi/linux (1 of 1 file). Show all
Unified · Split
| @@ -364,7 +364,7 @@ struct perf_event_mmap_page { · 363 unmodified lines | |||
| 364 | /* | 364 | /* |
| 365 | * Bits needed to read the hw events in user-space. | 365 | * Bits needed to read the hw events in user-space. |
| 366 | * | 366 | * |
| 367 | * u32 seq, time_mult, time_shift, idx, width; | 367 | * u32 seq, time_mult, time_shift, index, width; |
| 368 | * u64 count, enabled, running; | 368 | * u64 count, enabled, running; |
| 369 | * u64 cyc, time_offset; | 369 | * u64 cyc, time_offset; |
| 370 | * s64 pmc = 0; | 370 | * s64 pmc = 0; |
| @@ -383,11 +383,11 @@ struct perf_event_mmap_page { · 12 unmodified lines | |||
| 383 | * time_shift = pc->time_shift; | 383 | * time_shift = pc->time_shift; |
| 384 | * } | 384 | * } |
| 385 | * | 385 | * |
| 386 | * idx = pc->index; | 386 | * index = pc->index; |
| 387 | * count = pc->offset; | 387 | * count = pc->offset; |
| 388 | * if (pc->cap_usr_rdpmc && idx) { | 388 | * if (pc->cap_user_rdpmc && index) { |
| 389 | * width = pc->pmc_width; | 389 | * width = pc->pmc_width; |
| 390 | * pmc = rdpmc(idx - 1); | 390 | * pmc = rdpmc(index - 1); |
| 391 | * } | 391 | * } |
| 392 | * | 392 | * |
| 393 | * barrier(); | 393 | * barrier(); |
| @@ -415,7 +415,7 @@ struct perf_event_mmap_page { · 21 unmodified lines | |||
| 415 | }; | 415 | }; |
| 416 | 416 | ||
| 417 | /* | 417 | /* |
| 418 | * If cap_usr_rdpmc this field provides the bit-width of the value | 418 | * If cap_user_rdpmc this field provides the bit-width of the value |
| 419 | * read using the rdpmc() or equivalent instruction. This can be used | 419 | * read using the rdpmc() or equivalent instruction. This can be used |
| 420 | * to sign extend the result like: | 420 | * to sign extend the result like: |
| 421 | * | 421 | * |
| @@ -439,10 +439,10 @@ struct perf_event_mmap_page { · 17 unmodified lines | |||
| 439 | * | 439 | * |
| 440 | * Where time_offset,time_mult,time_shift and cyc are read in the | 440 | * Where time_offset,time_mult,time_shift and cyc are read in the |
| 441 | * seqcount loop described above. This delta can then be added to | 441 | * seqcount loop described above. This delta can then be added to |
| 442 | * enabled and possible running (if idx), improving the scaling: | 442 | * enabled and possible running (if index), improving the scaling: |
| 443 | * | 443 | * |
| 444 | * enabled += delta; | 444 | * enabled += delta; |
| 445 | * if (idx) | 445 | * if (index) |
| 446 | * running += delta; | 446 | * running += delta; |
| 447 | * | 447 | * |
| 448 | * quot = count / running; | 448 | * quot = count / running; |