It will be useful in following patch to pin thread to cpu based on the map it processes.
Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Jiri Olsa <[email protected]> --- tools/perf/util/evlist.c | 2 +- tools/perf/util/mmap.c | 3 ++- tools/perf/util/mmap.h | 3 ++- 3 files changed, 5 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 93bf777ef7c7..d1127c9027e5 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -888,7 +888,7 @@ static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx, if (*output == -1) { *output = fd; - if (perf_mmap__mmap(&maps[idx], mp, *output) < 0) + if (perf_mmap__mmap(&maps[idx], mp, *output, cpu) < 0) return -1; } else { if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, *output) != 0) diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c index 3f3b5a574484..da587e7d7eed 100644 --- a/tools/perf/util/mmap.c +++ b/tools/perf/util/mmap.c @@ -199,7 +199,7 @@ void perf_mmap__munmap(struct perf_mmap *map) auxtrace_mmap__munmap(&map->auxtrace_mmap); } -int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd) +int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int cpu) { /* * The last one will be done at perf_evlist__mmap_consume(), so that we @@ -226,6 +226,7 @@ int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd) return -1; } map->fd = fd; + map->cpu = cpu; if (auxtrace_mmap__mmap(&map->auxtrace_mmap, &mp->auxtrace_mp, map->base, fd)) diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h index 5cec43f6f1e8..b14bf0040518 100644 --- a/tools/perf/util/mmap.h +++ b/tools/perf/util/mmap.h @@ -18,6 +18,7 @@ struct perf_mmap { void *base; int mask; int fd; + int cpu; refcount_t refcnt; u64 prev; struct auxtrace_mmap auxtrace_mmap; @@ -59,7 +60,7 @@ struct mmap_params { bool track_mmap; }; -int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd); +int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int cpu); void perf_mmap__munmap(struct perf_mmap *map); void perf_mmap__get(struct perf_mmap *map); -- 2.13.6
