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Subject[PATCH 1/2] perf evlist: Fix inverted logic in perf_mmap__empty
Date
perf_evlist__mmap_consume() uses perf_mmap__empty() to judge whether
perf_mmap is empty and can be released. But the result is inverted so
fix it.

Signed-off-by: He Kuang <hekuang@huawei.com>
---
tools/perf/util/evlist.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 82bf224..76ef7ee 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -695,7 +695,7 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx)

static bool perf_mmap__empty(struct perf_mmap *md)
{
- return perf_mmap__read_head(md) != md->prev;
+ return perf_mmap__read_head(md) == md->prev;
}

static void perf_evlist__mmap_get(struct perf_evlist *evlist, int idx)
--
2.3.3.220.g9ab698f


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