diff options
Diffstat (limited to 'tools/perf/util/machine.h')
| -rw-r--r-- | tools/perf/util/machine.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index 3cdb1340f917..fe2f05848050 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -23,6 +23,17 @@ extern const char *ref_reloc_sym_names[]; struct vdso_info; +#define THREADS__TABLE_BITS 8 +#define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS) + +struct threads { + struct rb_root entries; + pthread_rwlock_t lock; + unsigned int nr; + struct list_head dead; + struct thread *last_match; +}; + struct machine { struct rb_node rb_node; pid_t pid; @@ -30,11 +41,7 @@ struct machine { bool comm_exec; bool kptr_restrict_warned; char *root_dir; - struct rb_root threads; - pthread_rwlock_t threads_lock; - unsigned int nr_threads; - struct list_head dead_threads; - struct thread *last_match; + struct threads threads[THREADS__TABLE_SIZE]; struct vdso_info *vdso_info; struct perf_env *env; struct dsos dsos; @@ -48,6 +55,12 @@ struct machine { }; }; +static inline struct threads *machine__threads(struct machine *machine, pid_t tid) +{ + /* Cast it to handle tid == -1 */ + return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE]; +} + static inline struct map *__machine__kernel_map(struct machine *machine, enum map_type type) { |