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SubjectRe: [PATCH] perf util: Join four conditions in two in perf_evlist__create_maps().
On 28/11/13 00:23, Dongsheng Yang wrote:
> There are four condition branchs in perf_evlist__create_maps, but they
> only do two kinds of thing. 1st and 4th call cpu_map__new(), and the others
> call cpu_map__dummy_new(). This patch joins them in two branchs, decreasing
> the number of branch and removing some duplicated code.

That code has changed again. See:

http://git.kernel.org/cgit/linux/kernel/git/acme/linux.git/log/?h=perf/core

>
> Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
> ---
> tools/perf/util/evlist.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
> index bbc746a..2258eb4 100644
> --- a/tools/perf/util/evlist.c
> +++ b/tools/perf/util/evlist.c
> @@ -819,11 +819,9 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
> if (evlist->threads == NULL)
> return -1;
>
> - if (target->force_per_cpu)
> - evlist->cpus = cpu_map__new(target->cpu_list);
> - else if (target__has_task(target))
> - evlist->cpus = cpu_map__dummy_new();
> - else if (!target__has_cpu(target) && !target->uses_mmap)
> + if (!target->force_per_cpu &&
> + (target__has_task(target) ||
> + (!target__has_cpu(target) && !target->uses_mmap)))
> evlist->cpus = cpu_map__dummy_new();
> else
> evlist->cpus = cpu_map__new(target->cpu_list);
>



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