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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-05-22 16:45:24 (GMT) |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-05-27 23:25:16 (GMT) |
| commit | 6a2ffcddad22ead7ce75c5773e87895b91e7cca7 (patch) | |
| tree | 21507892d91c16d26e475dc61536454f5a5c8654 /tools/perf/util/map.h | |
| parent | 1eee78aea9252fabcd333805d5d9fa42a1bf9427 (diff) | |
| download | linux-6a2ffcddad22ead7ce75c5773e87895b91e7cca7.tar.xz | |
perf tools: Protect accesses the map rbtrees with a rw lock
To allow concurrent access, next step: refcount struct map instances, so
that we can ditch maps->removed_maps and stop leaking threads, maps,
then struct DSO needs the same treatment.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-o45w2w5dzrza38nzqxnqzhyf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/map.h')
| -rw-r--r-- | tools/perf/util/map.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index e3702fd..6796f27 100644 --- a/tools/perf/util/map.h +++ b/tools/perf/util/map.h @@ -5,6 +5,7 @@ #include <linux/compiler.h> #include <linux/list.h> #include <linux/rbtree.h> +#include <pthread.h> #include <stdio.h> #include <stdbool.h> #include <linux/types.h> @@ -60,6 +61,7 @@ struct kmap { struct maps { struct rb_root entries; + pthread_rwlock_t lock; struct list_head removed_maps; }; |