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Message-Id: <20191011200559.7156-48-acme@kernel.org>
Date: Fri, 11 Oct 2019 17:05:37 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>
Cc: Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
Clark Williams <williams@...hat.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Michael Petlan <mpetlan@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 47/69] libperf: Adopt perf_mmap__unmap() function from tools/perf
From: Jiri Olsa <jolsa@...nel.org>
Move perf_mmap__unmap() from tools/perf to libperf, to internal header
internal/mmap.h. It will be used in the following patches. And rename
the existing perf's function to mmap__munmap().
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Michael Petlan <mpetlan@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: http://lore.kernel.org/lkml/20191007125344.14268-7-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/lib/include/internal/mmap.h | 1 +
tools/perf/lib/mmap.c | 10 ++++++++++
tools/perf/util/evlist.c | 4 ++--
tools/perf/util/mmap.c | 11 +++--------
tools/perf/util/mmap.h | 2 +-
5 files changed, 17 insertions(+), 11 deletions(-)
diff --git a/tools/perf/lib/include/internal/mmap.h b/tools/perf/lib/include/internal/mmap.h
index 2e68974bffb4..5c2ca9ab12cd 100644
--- a/tools/perf/lib/include/internal/mmap.h
+++ b/tools/perf/lib/include/internal/mmap.h
@@ -39,6 +39,7 @@ size_t perf_mmap__mmap_len(struct perf_mmap *map);
void perf_mmap__init(struct perf_mmap *map, bool overwrite);
int perf_mmap__mmap(struct perf_mmap *map, struct perf_mmap_param *mp,
int fd, int cpu);
+void perf_mmap__munmap(struct perf_mmap *map);
void perf_mmap__get(struct perf_mmap *map);
#endif /* __LIBPERF_INTERNAL_MMAP_H */
diff --git a/tools/perf/lib/mmap.c b/tools/perf/lib/mmap.c
index b765e0505bb6..6eb228d89206 100644
--- a/tools/perf/lib/mmap.c
+++ b/tools/perf/lib/mmap.c
@@ -32,6 +32,16 @@ int perf_mmap__mmap(struct perf_mmap *map, struct perf_mmap_param *mp,
return 0;
}
+void perf_mmap__munmap(struct perf_mmap *map)
+{
+ if (map && map->base != NULL) {
+ munmap(map->base, perf_mmap__mmap_len(map));
+ map->base = NULL;
+ map->fd = -1;
+ refcount_set(&map->refcnt, 0);
+ }
+}
+
void perf_mmap__get(struct perf_mmap *map)
{
refcount_inc(&map->refcnt);
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index dc5b36069d4c..0b877d39a660 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -601,11 +601,11 @@ static void evlist__munmap_nofree(struct evlist *evlist)
if (evlist->mmap)
for (i = 0; i < evlist->core.nr_mmaps; i++)
- perf_mmap__munmap(&evlist->mmap[i]);
+ mmap__munmap(&evlist->mmap[i]);
if (evlist->overwrite_mmap)
for (i = 0; i < evlist->core.nr_mmaps; i++)
- perf_mmap__munmap(&evlist->overwrite_mmap[i]);
+ mmap__munmap(&evlist->overwrite_mmap[i]);
}
void evlist__munmap(struct evlist *evlist)
diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
index be691b58d8ab..2c73b5bcf74e 100644
--- a/tools/perf/util/mmap.c
+++ b/tools/perf/util/mmap.c
@@ -115,7 +115,7 @@ void perf_mmap__put(struct mmap *map)
BUG_ON(map->core.base && refcount_read(&map->core.refcnt) == 0);
if (refcount_dec_and_test(&map->core.refcnt))
- perf_mmap__munmap(map);
+ mmap__munmap(map);
}
void perf_mmap__consume(struct mmap *map)
@@ -306,19 +306,14 @@ static void perf_mmap__aio_munmap(struct mmap *map __maybe_unused)
}
#endif
-void perf_mmap__munmap(struct mmap *map)
+void mmap__munmap(struct mmap *map)
{
+ perf_mmap__munmap(&map->core);
perf_mmap__aio_munmap(map);
if (map->data != NULL) {
munmap(map->data, mmap__mmap_len(map));
map->data = NULL;
}
- if (map->core.base != NULL) {
- munmap(map->core.base, mmap__mmap_len(map));
- map->core.base = NULL;
- map->core.fd = -1;
- refcount_set(&map->core.refcnt, 0);
- }
auxtrace_mmap__munmap(&map->auxtrace_mmap);
}
diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h
index a73402ee8fe0..6a18b2990059 100644
--- a/tools/perf/util/mmap.h
+++ b/tools/perf/util/mmap.h
@@ -43,7 +43,7 @@ struct mmap_params {
};
int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu);
-void perf_mmap__munmap(struct mmap *map);
+void mmap__munmap(struct mmap *map);
void perf_mmap__put(struct mmap *map);
--
2.21.0
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