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-rw-r--r--include/linux/perf_event.h15
1 files changed, 7 insertions, 8 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index f1f853a9d5eb..ce7667616fcb 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -485,6 +485,7 @@ struct perf_guest_info_callbacks {
485#include <linux/ftrace.h> 485#include <linux/ftrace.h>
486#include <linux/cpu.h> 486#include <linux/cpu.h>
487#include <asm/atomic.h> 487#include <asm/atomic.h>
488#include <asm/local.h>
488 489
489#define PERF_MAX_STACK_DEPTH 255 490#define PERF_MAX_STACK_DEPTH 255
490 491
@@ -588,20 +589,18 @@ struct perf_mmap_data {
588#ifdef CONFIG_PERF_USE_VMALLOC 589#ifdef CONFIG_PERF_USE_VMALLOC
589 struct work_struct work; 590 struct work_struct work;
590#endif 591#endif
591 int data_order; 592 int data_order; /* allocation order */
592 int nr_pages; /* nr of data pages */ 593 int nr_pages; /* nr of data pages */
593 int writable; /* are we writable */ 594 int writable; /* are we writable */
594 int nr_locked; /* nr pages mlocked */ 595 int nr_locked; /* nr pages mlocked */
595 596
596 atomic_t poll; /* POLL_ for wakeups */ 597 atomic_t poll; /* POLL_ for wakeups */
597 atomic_t events; /* event_id limit */
598 598
599 atomic_long_t head; /* write position */ 599 local_t head; /* write position */
600 600 local_t nest; /* nested writers */
601 atomic_t wakeup; /* needs a wakeup */ 601 local_t events; /* event limit */
602 atomic_t lost; /* nr records lost */ 602 local_t wakeup; /* needs a wakeup */
603 603 local_t lost; /* nr records lost */
604 atomic_t nest; /* nested writers */
605 604
606 long watermark; /* wakeup watermark */ 605 long watermark; /* wakeup watermark */
607 606