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-rw-r--r--include/uapi/linux/perf_event.h14
1 files changed, 7 insertions, 7 deletions
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 9269de254874..9d845404d875 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -364,7 +364,7 @@ struct perf_event_mmap_page {
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 {
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 {
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 {
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;