diff options
Diffstat (limited to 'kernel/trace/trace_syscalls.c')
-rw-r--r-- | kernel/trace/trace_syscalls.c | 72 |
1 files changed, 36 insertions, 36 deletions
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index 7e6e84fb7b6c..33c2a5b769dc 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c | |||
@@ -428,12 +428,12 @@ core_initcall(init_ftrace_syscalls); | |||
428 | 428 | ||
429 | #ifdef CONFIG_PERF_EVENTS | 429 | #ifdef CONFIG_PERF_EVENTS |
430 | 430 | ||
431 | static DECLARE_BITMAP(enabled_prof_enter_syscalls, NR_syscalls); | 431 | static DECLARE_BITMAP(enabled_perf_enter_syscalls, NR_syscalls); |
432 | static DECLARE_BITMAP(enabled_prof_exit_syscalls, NR_syscalls); | 432 | static DECLARE_BITMAP(enabled_perf_exit_syscalls, NR_syscalls); |
433 | static int sys_prof_refcount_enter; | 433 | static int sys_perf_refcount_enter; |
434 | static int sys_prof_refcount_exit; | 434 | static int sys_perf_refcount_exit; |
435 | 435 | ||
436 | static void prof_syscall_enter(struct pt_regs *regs, long id) | 436 | static void perf_syscall_enter(struct pt_regs *regs, long id) |
437 | { | 437 | { |
438 | struct syscall_metadata *sys_data; | 438 | struct syscall_metadata *sys_data; |
439 | struct syscall_trace_enter *rec; | 439 | struct syscall_trace_enter *rec; |
@@ -443,7 +443,7 @@ static void prof_syscall_enter(struct pt_regs *regs, long id) | |||
443 | int size; | 443 | int size; |
444 | 444 | ||
445 | syscall_nr = syscall_get_nr(current, regs); | 445 | syscall_nr = syscall_get_nr(current, regs); |
446 | if (!test_bit(syscall_nr, enabled_prof_enter_syscalls)) | 446 | if (!test_bit(syscall_nr, enabled_perf_enter_syscalls)) |
447 | return; | 447 | return; |
448 | 448 | ||
449 | sys_data = syscall_nr_to_meta(syscall_nr); | 449 | sys_data = syscall_nr_to_meta(syscall_nr); |
@@ -455,11 +455,11 @@ static void prof_syscall_enter(struct pt_regs *regs, long id) | |||
455 | size = ALIGN(size + sizeof(u32), sizeof(u64)); | 455 | size = ALIGN(size + sizeof(u32), sizeof(u64)); |
456 | size -= sizeof(u32); | 456 | size -= sizeof(u32); |
457 | 457 | ||
458 | if (WARN_ONCE(size > FTRACE_MAX_PROFILE_SIZE, | 458 | if (WARN_ONCE(size > PERF_MAX_TRACE_SIZE, |
459 | "profile buffer not large enough")) | 459 | "perf buffer not large enough")) |
460 | return; | 460 | return; |
461 | 461 | ||
462 | rec = (struct syscall_trace_enter *)ftrace_perf_buf_prepare(size, | 462 | rec = (struct syscall_trace_enter *)perf_trace_buf_prepare(size, |
463 | sys_data->enter_event->id, &rctx, &flags); | 463 | sys_data->enter_event->id, &rctx, &flags); |
464 | if (!rec) | 464 | if (!rec) |
465 | return; | 465 | return; |
@@ -467,10 +467,10 @@ static void prof_syscall_enter(struct pt_regs *regs, long id) | |||
467 | rec->nr = syscall_nr; | 467 | rec->nr = syscall_nr; |
468 | syscall_get_arguments(current, regs, 0, sys_data->nb_args, | 468 | syscall_get_arguments(current, regs, 0, sys_data->nb_args, |
469 | (unsigned long *)&rec->args); | 469 | (unsigned long *)&rec->args); |
470 | ftrace_perf_buf_submit(rec, size, rctx, 0, 1, flags, regs); | 470 | perf_trace_buf_submit(rec, size, rctx, 0, 1, flags, regs); |
471 | } | 471 | } |
472 | 472 | ||
473 | int prof_sysenter_enable(struct ftrace_event_call *call) | 473 | int perf_sysenter_enable(struct ftrace_event_call *call) |
474 | { | 474 | { |
475 | int ret = 0; | 475 | int ret = 0; |
476 | int num; | 476 | int num; |
@@ -478,34 +478,34 @@ int prof_sysenter_enable(struct ftrace_event_call *call) | |||
478 | num = ((struct syscall_metadata *)call->data)->syscall_nr; | 478 | num = ((struct syscall_metadata *)call->data)->syscall_nr; |
479 | 479 | ||
480 | mutex_lock(&syscall_trace_lock); | 480 | mutex_lock(&syscall_trace_lock); |
481 | if (!sys_prof_refcount_enter) | 481 | if (!sys_perf_refcount_enter) |
482 | ret = register_trace_sys_enter(prof_syscall_enter); | 482 | ret = register_trace_sys_enter(perf_syscall_enter); |
483 | if (ret) { | 483 | if (ret) { |
484 | pr_info("event trace: Could not activate" | 484 | pr_info("event trace: Could not activate" |
485 | "syscall entry trace point"); | 485 | "syscall entry trace point"); |
486 | } else { | 486 | } else { |
487 | set_bit(num, enabled_prof_enter_syscalls); | 487 | set_bit(num, enabled_perf_enter_syscalls); |
488 | sys_prof_refcount_enter++; | 488 | sys_perf_refcount_enter++; |
489 | } | 489 | } |
490 | mutex_unlock(&syscall_trace_lock); | 490 | mutex_unlock(&syscall_trace_lock); |
491 | return ret; | 491 | return ret; |
492 | } | 492 | } |
493 | 493 | ||
494 | void prof_sysenter_disable(struct ftrace_event_call *call) | 494 | void perf_sysenter_disable(struct ftrace_event_call *call) |
495 | { | 495 | { |
496 | int num; | 496 | int num; |
497 | 497 | ||
498 | num = ((struct syscall_metadata *)call->data)->syscall_nr; | 498 | num = ((struct syscall_metadata *)call->data)->syscall_nr; |
499 | 499 | ||
500 | mutex_lock(&syscall_trace_lock); | 500 | mutex_lock(&syscall_trace_lock); |
501 | sys_prof_refcount_enter--; | 501 | sys_perf_refcount_enter--; |
502 | clear_bit(num, enabled_prof_enter_syscalls); | 502 | clear_bit(num, enabled_perf_enter_syscalls); |
503 | if (!sys_prof_refcount_enter) | 503 | if (!sys_perf_refcount_enter) |
504 | unregister_trace_sys_enter(prof_syscall_enter); | 504 | unregister_trace_sys_enter(perf_syscall_enter); |
505 | mutex_unlock(&syscall_trace_lock); | 505 | mutex_unlock(&syscall_trace_lock); |
506 | } | 506 | } |
507 | 507 | ||
508 | static void prof_syscall_exit(struct pt_regs *regs, long ret) | 508 | static void perf_syscall_exit(struct pt_regs *regs, long ret) |
509 | { | 509 | { |
510 | struct syscall_metadata *sys_data; | 510 | struct syscall_metadata *sys_data; |
511 | struct syscall_trace_exit *rec; | 511 | struct syscall_trace_exit *rec; |
@@ -515,7 +515,7 @@ static void prof_syscall_exit(struct pt_regs *regs, long ret) | |||
515 | int size; | 515 | int size; |
516 | 516 | ||
517 | syscall_nr = syscall_get_nr(current, regs); | 517 | syscall_nr = syscall_get_nr(current, regs); |
518 | if (!test_bit(syscall_nr, enabled_prof_exit_syscalls)) | 518 | if (!test_bit(syscall_nr, enabled_perf_exit_syscalls)) |
519 | return; | 519 | return; |
520 | 520 | ||
521 | sys_data = syscall_nr_to_meta(syscall_nr); | 521 | sys_data = syscall_nr_to_meta(syscall_nr); |
@@ -530,11 +530,11 @@ static void prof_syscall_exit(struct pt_regs *regs, long ret) | |||
530 | * Impossible, but be paranoid with the future | 530 | * Impossible, but be paranoid with the future |
531 | * How to put this check outside runtime? | 531 | * How to put this check outside runtime? |
532 | */ | 532 | */ |
533 | if (WARN_ONCE(size > FTRACE_MAX_PROFILE_SIZE, | 533 | if (WARN_ONCE(size > PERF_MAX_TRACE_SIZE, |
534 | "exit event has grown above profile buffer size")) | 534 | "exit event has grown above perf buffer size")) |
535 | return; | 535 | return; |
536 | 536 | ||
537 | rec = (struct syscall_trace_exit *)ftrace_perf_buf_prepare(size, | 537 | rec = (struct syscall_trace_exit *)perf_trace_buf_prepare(size, |
538 | sys_data->exit_event->id, &rctx, &flags); | 538 | sys_data->exit_event->id, &rctx, &flags); |
539 | if (!rec) | 539 | if (!rec) |
540 | return; | 540 | return; |
@@ -542,10 +542,10 @@ static void prof_syscall_exit(struct pt_regs *regs, long ret) | |||
542 | rec->nr = syscall_nr; | 542 | rec->nr = syscall_nr; |
543 | rec->ret = syscall_get_return_value(current, regs); | 543 | rec->ret = syscall_get_return_value(current, regs); |
544 | 544 | ||
545 | ftrace_perf_buf_submit(rec, size, rctx, 0, 1, flags, regs); | 545 | perf_trace_buf_submit(rec, size, rctx, 0, 1, flags, regs); |
546 | } | 546 | } |
547 | 547 | ||
548 | int prof_sysexit_enable(struct ftrace_event_call *call) | 548 | int perf_sysexit_enable(struct ftrace_event_call *call) |
549 | { | 549 | { |
550 | int ret = 0; | 550 | int ret = 0; |
551 | int num; | 551 | int num; |
@@ -553,30 +553,30 @@ int prof_sysexit_enable(struct ftrace_event_call *call) | |||
553 | num = ((struct syscall_metadata *)call->data)->syscall_nr; | 553 | num = ((struct syscall_metadata *)call->data)->syscall_nr; |
554 | 554 | ||
555 | mutex_lock(&syscall_trace_lock); | 555 | mutex_lock(&syscall_trace_lock); |
556 | if (!sys_prof_refcount_exit) | 556 | if (!sys_perf_refcount_exit) |
557 | ret = register_trace_sys_exit(prof_syscall_exit); | 557 | ret = register_trace_sys_exit(perf_syscall_exit); |
558 | if (ret) { | 558 | if (ret) { |
559 | pr_info("event trace: Could not activate" | 559 | pr_info("event trace: Could not activate" |
560 | "syscall exit trace point"); | 560 | "syscall exit trace point"); |
561 | } else { | 561 | } else { |
562 | set_bit(num, enabled_prof_exit_syscalls); | 562 | set_bit(num, enabled_perf_exit_syscalls); |
563 | sys_prof_refcount_exit++; | 563 | sys_perf_refcount_exit++; |
564 | } | 564 | } |
565 | mutex_unlock(&syscall_trace_lock); | 565 | mutex_unlock(&syscall_trace_lock); |
566 | return ret; | 566 | return ret; |
567 | } | 567 | } |
568 | 568 | ||
569 | void prof_sysexit_disable(struct ftrace_event_call *call) | 569 | void perf_sysexit_disable(struct ftrace_event_call *call) |
570 | { | 570 | { |
571 | int num; | 571 | int num; |
572 | 572 | ||
573 | num = ((struct syscall_metadata *)call->data)->syscall_nr; | 573 | num = ((struct syscall_metadata *)call->data)->syscall_nr; |
574 | 574 | ||
575 | mutex_lock(&syscall_trace_lock); | 575 | mutex_lock(&syscall_trace_lock); |
576 | sys_prof_refcount_exit--; | 576 | sys_perf_refcount_exit--; |
577 | clear_bit(num, enabled_prof_exit_syscalls); | 577 | clear_bit(num, enabled_perf_exit_syscalls); |
578 | if (!sys_prof_refcount_exit) | 578 | if (!sys_perf_refcount_exit) |
579 | unregister_trace_sys_exit(prof_syscall_exit); | 579 | unregister_trace_sys_exit(perf_syscall_exit); |
580 | mutex_unlock(&syscall_trace_lock); | 580 | mutex_unlock(&syscall_trace_lock); |
581 | } | 581 | } |
582 | 582 | ||