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authorNick Terrell <terrelln@fb.com>2022-12-13 16:21:55 -0800
committerNick Terrell <terrelln@fb.com>2022-12-13 16:21:55 -0800
commit4f2c0a4acffbec01079c28f839422e64ddeff004 (patch)
tree06ada4a8a6d94a94c93944806041b8c994cebfc5 /kernel/events/ring_buffer.c
parent88a309465b3f05a100c3b81966982c0f9f5d23a6 (diff)
parent830b3c68c1fb1e9176028d02ef86f3cf76aa2476 (diff)
Merge branch 'main' into zstd-linus
Diffstat (limited to 'kernel/events/ring_buffer.c')
-rw-r--r--kernel/events/ring_buffer.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index 52868716ec35..273a0fe7910a 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -22,7 +22,7 @@ static void perf_output_wakeup(struct perf_output_handle *handle)
atomic_set(&handle->rb->poll, EPOLLIN);
handle->event->pending_wakeup = 1;
- irq_work_queue(&handle->event->pending);
+ irq_work_queue(&handle->event->pending_irq);
}
/*
@@ -172,8 +172,10 @@ __perf_output_begin(struct perf_output_handle *handle,
goto out;
if (unlikely(rb->paused)) {
- if (rb->nr_pages)
+ if (rb->nr_pages) {
local_inc(&rb->lost);
+ atomic64_inc(&event->lost_samples);
+ }
goto out;
}
@@ -254,6 +256,7 @@ __perf_output_begin(struct perf_output_handle *handle,
fail:
local_inc(&rb->lost);
+ atomic64_inc(&event->lost_samples);
perf_output_put_handle(handle);
out:
rcu_read_unlock();
@@ -859,11 +862,6 @@ void rb_free(struct perf_buffer *rb)
}
#else
-static int data_page_nr(struct perf_buffer *rb)
-{
- return rb->nr_pages << page_order(rb);
-}
-
static struct page *
__perf_mmap_to_page(struct perf_buffer *rb, unsigned long pgoff)
{