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Commit a26ca671 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo Committed by Jiri Olsa
Browse files

perf tools: Reference count map_groups objects 



We will share it among threads in the same process.
Adding map_groups__get/map_groups__put interface for that.

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@kernel.org>
Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1397490723-1992-4-git-send-email-jolsa@redhat.com


Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
parent 93d5731d

tools/perf/util/map.c

+7 −0
Original line number Diff line number Diff line
@@ -323,6 +323,7 @@ void map_groups__init(struct map_groups *mg) 
		INIT_LIST_HEAD(&mg->removed_maps[i]);

	}

	mg->machine = NULL;

	mg->refcnt = 1;

}



static void maps__delete(struct rb_root *maps)
@@ -374,6 +375,12 @@ void map_groups__delete(struct map_groups *mg) 
	free(mg);

}



void map_groups__put(struct map_groups *mg)

{

	if (--mg->refcnt == 0)

		map_groups__delete(mg);

}



void map_groups__flush(struct map_groups *mg)

{

	int type;

tools/perf/util/map.h

+9 −0
Original line number Diff line number Diff line
@@ -59,11 +59,20 @@ struct map_groups { 
	struct rb_root	 maps[MAP__NR_TYPES];

	struct list_head removed_maps[MAP__NR_TYPES];

	struct machine	 *machine;

	int		 refcnt;

};



struct map_groups *map_groups__new(void);

void map_groups__delete(struct map_groups *mg);



static inline struct map_groups *map_groups__get(struct map_groups *mg)

{

	++mg->refcnt;

	return mg;

}



void map_groups__put(struct map_groups *mg);



static inline struct kmap *map__kmap(struct map *map)

{

	return (struct kmap *)(map + 1);

tools/perf/util/thread.c

+1 −1
Original line number Diff line number Diff line
@@ -50,7 +50,7 @@ void thread__delete(struct thread *thread) 
{

	struct comm *comm, *tmp;



	map_groups__delete(thread->mg);

	map_groups__put(thread->mg);

	thread->mg = NULL;

	list_for_each_entry_safe(comm, tmp, &thread->comm_list, list) {

		list_del(&comm->list);