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Signed-off-by: Ian Rogers --- tools/perf/util/env.c | 3 +++ tools/perf/util/env.h | 3 +++ 2 files changed, 6 insertions(+) diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index 28c54c58193e..4de07cc7ef5d 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -250,6 +250,8 @@ void perf_env__exit(struct perf_env *env) { int i, j; + mutex_destroy(&env->lock); + perf_env__purge_bpf(env); perf_env__purge_cgroups(env); zfree(&env->hostname); @@ -307,6 +309,7 @@ void perf_env__init(struct perf_env *env) init_rwsem(&env->bpf_progs.lock); #endif env->kernel_is_64_bit = -1; + mutex_init(&env->lock); } static void perf_env__init_kernel_mode(struct perf_env *env) diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h index 83e74328798f..6aaf80c640bd 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -6,6 +6,7 @@ #include #include "cpumap.h" #include "rwsem.h" +#include "mutex.h" struct perf_cpu_map; @@ -156,6 +157,8 @@ struct perf_env { */ bool enabled; } clock; + /* Protects lazy environment initialization (e.g. os_release, e_machine). */ + struct mutex lock; }; enum perf_compress_type { -- 2.54.0.929.g9b7fa37559-goog