The following commit has been merged into the perf/core branch of tip: Commit-ID: 7df4e36a4785618f0c63f3dc2bacb164780ab0f6 Gitweb: https://git.kernel.org/tip/7df4e36a4785618f0c63f3dc2bacb164780ab0f6 Author: Kyle Meyer <[email protected]> AuthorDate: Tue, 27 Aug 2019 16:43:49 -05:00 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitterDate: Thu, 29 Aug 2019 17:38:32 -03:00
perf session: Replace MAX_NR_CPUS with perf_env::nr_cpus_online nr_cpus, the number of CPUs online during a record session bound by MAX_NR_CPUS, can be used as a dynamic alternative for MAX_NR_CPUS in perf_session__cpu_bitmap. Signed-off-by: Kyle Meyer <[email protected]> Reviewed-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Russ Anderson <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/util/session.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 7350b0d..13486bc 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -2292,6 +2292,7 @@ int perf_session__cpu_bitmap(struct perf_session *session, { int i, err = -1; struct perf_cpu_map *map; + int nr_cpus = min(session->header.env.nr_cpus_online, MAX_NR_CPUS); for (i = 0; i < PERF_TYPE_MAX; ++i) { struct evsel *evsel; @@ -2316,7 +2317,7 @@ int perf_session__cpu_bitmap(struct perf_session *session, for (i = 0; i < map->nr; i++) { int cpu = map->map[i]; - if (cpu >= MAX_NR_CPUS) { + if (cpu >= nr_cpus) { pr_err("Requested CPU %d too large. " "Consider raising MAX_NR_CPUS\n", cpu); goto out_delete_map;
