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| author | Shang XiaoJing <shangxiaojing@huawei.com> | 2022-09-08 10:11:38 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-04 08:55:21 -0300 |
| commit | e3e7572fa8062b72385575bf04170621a4a8c447 (patch) | |
| tree | ccd8cd33c54d5edc1763bfcba7c20a831253f1ba /tools/perf/builtin-trace.c | |
| parent | c581e46ba2988a6198b07bcf264beab1895a28ac (diff) | |
| download | lwn-e3e7572fa8062b72385575bf04170621a4a8c447.tar.gz lwn-e3e7572fa8062b72385575bf04170621a4a8c447.zip | |
perf trace: Use zalloc() to save initialization of syscall_stats
As most members of syscall_stats is set to 0 in thread__update_stats,
using zalloc() directly.
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220908021141.27134-2-shangxiaojing@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 0bd9d01c0df9..3ecc31375f90 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -2173,13 +2173,10 @@ static void thread__update_stats(struct thread *thread, struct thread_trace *ttr stats = inode->priv; if (stats == NULL) { - stats = malloc(sizeof(*stats)); + stats = zalloc(sizeof(*stats)); if (stats == NULL) return; - stats->nr_failures = 0; - stats->max_errno = 0; - stats->errnos = NULL; init_stats(&stats->stats); inode->priv = stats; } |