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From: kan.liang@intel.com
To: acme@kernel.org, peterz@infradead.org, mingo@redhat.com,
	linux-kernel@vger.kernel.org
Cc: jolsa@kernel.org, wangnan0@huawei.com, hekuang@huawei.com,
	namhyung@kernel.org, alexander.shishkin@linux.intel.com,
	adrian.hunter@intel.com, ak@linux.intel.com,
	Kan Liang <kan.liang@intel.com>
Subject: [PATCH 07/10] perf kvm: apply new mmap_read interfaces
Date: Tue, 10 Oct 2017 10:20:20 -0700	[thread overview]
Message-ID: <1507656023-177125-8-git-send-email-kan.liang@intel.com> (raw)
In-Reply-To: <1507656023-177125-1-git-send-email-kan.liang@intel.com>

From: Kan Liang <kan.liang@intel.com>

no functional change

Signed-off-by: Kan Liang <kan.liang@intel.com>
---
 tools/perf/builtin-kvm.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 721f4f9..397a6b6 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -741,11 +741,18 @@ static s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx,
 {
 	union perf_event *event;
 	struct perf_sample sample;
+	struct perf_mmap_read read;
 	s64 n = 0;
 	int err;
 
 	*mmap_time = ULLONG_MAX;
-	while ((event = perf_evlist__mmap_read(kvm->evlist, idx)) != NULL) {
+
+	if (perf_evlist__mmap_read_init(kvm->evlist, idx, &read, false)) {
+		pr_err("Can't get mmap information\n");
+		return -1;
+	}
+
+	while ((event = perf_mmap__read_event(&read)) != NULL) {
 		err = perf_evlist__parse_sample(kvm->evlist, event, &sample);
 		if (err) {
 			perf_evlist__mmap_consume(kvm->evlist, idx);
@@ -774,6 +781,7 @@ static s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx,
 		if (n == PERF_KVM__MAX_EVENTS_PER_MMAP)
 			break;
 	}
+	perf_mmap__read_done(&read);
 
 	return n;
 }
-- 
2.5.5

  parent reply	other threads:[~2017-10-10 17:24 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-10 17:20 [PATCH 00/10] new mmap_read interfaces for ring buffer kan.liang
2017-10-10 17:20 ` [PATCH 01/10] perf record: new interfaces to read ring buffer to file kan.liang
2017-10-10 18:24   ` Arnaldo Carvalho de Melo
2017-10-10 18:30   ` Arnaldo Carvalho de Melo
2017-10-11  4:12     ` Liang, Kan
2017-10-11 14:45       ` Arnaldo Carvalho de Melo
2017-10-11 15:16         ` Liang, Kan
2017-10-10 17:20 ` [PATCH 02/10] perf tool: fix: Don't discard prev in backward mode kan.liang
2017-10-10 18:14   ` Arnaldo Carvalho de Melo
2017-10-10 18:18     ` Liang, Kan
2017-10-13 12:55     ` Liang, Kan
2017-10-13 13:13       ` Arnaldo Carvalho de Melo
2017-10-13 13:14         ` Liang, Kan
2017-10-10 18:23   ` Wangnan (F)
2017-10-10 18:50     ` Wangnan (F)
2017-10-10 19:50       ` Liang, Kan
2017-10-10 20:18         ` Wangnan (F)
2017-10-11  2:12           ` Liang, Kan
2017-10-11 14:57             ` Liang, Kan
2017-10-12  1:11               ` Wangnan (F)
2017-10-12 12:49                 ` Liang, Kan
2017-10-12 14:43                   ` Wangnan (F)
2017-10-10 19:36     ` Liang, Kan
2017-10-10 17:20 ` [PATCH 03/10] perf tool: new iterfaces to read event from ring buffer kan.liang
2017-10-10 18:15   ` Arnaldo Carvalho de Melo
2017-10-10 18:28     ` Liang, Kan
2017-10-10 18:34       ` Arnaldo Carvalho de Melo
2017-10-10 18:36         ` Arnaldo Carvalho de Melo
2017-10-10 19:00           ` Arnaldo Carvalho de Melo
2017-10-10 19:10             ` Wangnan (F)
2017-10-10 19:17               ` Arnaldo Carvalho de Melo
2017-10-10 19:22                 ` Wangnan (F)
2017-10-10 19:55                   ` Liang, Kan
2017-10-10 19:59                     ` Wangnan (F)
2017-10-10 17:20 ` [PATCH 04/10] perf tool: perf_mmap__read_init wrapper for evlist kan.liang
2017-10-10 17:20 ` [PATCH 05/10] perf top: apply new mmap_read interfaces kan.liang
2017-10-10 17:20 ` [PATCH 06/10] perf trace: " kan.liang
2017-10-10 17:20 ` kan.liang [this message]
2017-10-10 17:20 ` [PATCH 08/10] perf python: " kan.liang
2017-10-10 17:20 ` [PATCH 09/10] perf tests: " kan.liang
2017-10-10 17:20 ` [PATCH 10/10] perf tool: remove stale " kan.liang

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