linux-kernel - [tip:perf/core] perf test: Switch to new perf_mmap__read

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 5 Mar 2018 22:48:26 -0800
From:   tip-bot for Kan Liang <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     ak@...ux.intel.com, hpa@...or.com, acme@...hat.com,
        kan.liang@...ux.intel.com, namhyung@...nel.org, jolsa@...hat.com,
        wangnan0@...wei.com, mingo@...nel.org,
        linux-kernel@...r.kernel.org, tglx@...utronix.de
Subject: [tip:perf/core] perf test: Switch to new perf_mmap__read_event()
 interface for bpf

Commit-ID:  2f54f3a4733c0cd857992d793af5e8321b281012
Gitweb:     https://git.kernel.org/tip/2f54f3a4733c0cd857992d793af5e8321b281012
Author:     Kan Liang <kan.liang@...ux.intel.com>
AuthorDate: Thu, 1 Mar 2018 18:09:01 -0500
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 5 Mar 2018 10:47:54 -0300

perf test: Switch to new perf_mmap__read_event() interface for bpf

The perf test 'bpf' still use the legacy interface.

No functional change.

Committer notes:

Tested with:

  # perf test bpf
  39: BPF filter                                            :
  39.1: Basic BPF filtering                                 : Ok
  39.2: BPF pinning                                         : Ok
  39.3: BPF prologue generation                             : Ok
  39.4: BPF relocation checker                              : Ok
  #

Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/r/1519945751-37786-4-git-send-email-kan.liang@linux.intel.com
[ Changed bool parameters from 0 to 'false', as per Jiri comment ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/tests/bpf.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c
index e8399beca62b..09c9c9f9e827 100644
--- a/tools/perf/tests/bpf.c
+++ b/tools/perf/tests/bpf.c
@@ -176,13 +176,20 @@ static int do_test(struct bpf_object *obj, int (*func)(void),
 
 	for (i = 0; i < evlist->nr_mmaps; i++) {
 		union perf_event *event;
+		struct perf_mmap *md;
+		u64 end, start;
 
-		while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
+		md = &evlist->mmap[i];
+		if (perf_mmap__read_init(md, false, &start, &end) < 0)
+			continue;
+
+		while ((event = perf_mmap__read_event(md, false, &start, end)) != NULL) {
 			const u32 type = event->header.type;
 
 			if (type == PERF_RECORD_SAMPLE)
 				count ++;
 		}
+		perf_mmap__read_done(md);
 	}
 
 	if (count != expect) {