Commit-ID: a1f72618346a4e7ce9cff6aec1a62737d5d08763
Gitweb: http://git.kernel.org/tip/a1f72618346a4e7ce9cff6aec1a62737d5d08763
Author: Wang Nan <wangnan0@xxxxxxxxxx>
AuthorDate: Thu, 14 Jul 2016 08:34:38 +0000
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 15 Jul 2016 17:27:47 -0300
perf evlist: Extract common code in mmap failure processing
In perf_evlist__mmap_per_cpu() and perf_evlist__mmap_per_thread(), in
case of mmap failure, successfully created maps should be cleared.
Current code uses two loops calling __perf_evlist__munmap() for each
function.
This patch extracts common code to perf_evlist__munmap_nofree() and use
previous introduced decoupled API perf_mmap__munmap(). Now
__perf_evlist__munmap() can be removed because of no user.
Signed-off-by: Wang Nan <wangnan0@xxxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: He Kuang <hekuang@xxxxxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Nilay Vaish <nilayvaish@xxxxxxxxx>
Cc: Zefan Li <lizefan@xxxxxxxxxx>
Cc: pi3orama@xxxxxxx
Link: http://lkml.kernel.org/r/1468485287-33422-7-git-send-email-wangnan0@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/evlist.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 1462085..54ae0a0 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -28,7 +28,6 @@
#include <linux/err.h>
static void perf_evlist__mmap_put(struct perf_evlist *evlist, int idx);
-static void __perf_evlist__munmap(struct perf_evlist *evlist, int idx);
static void perf_mmap__munmap(struct perf_mmap *map);
static void perf_mmap__put(struct perf_mmap *map);
@@ -970,12 +969,7 @@ static void perf_mmap__munmap(struct perf_mmap *map)
auxtrace_mmap__munmap(&map->auxtrace_mmap);
}
-static void __perf_evlist__munmap(struct perf_evlist *evlist, int idx)
-{
- perf_mmap__munmap(&evlist->mmap[idx]);
-}
-
-void perf_evlist__munmap(struct perf_evlist *evlist)
+static void perf_evlist__munmap_nofree(struct perf_evlist *evlist)
{
int i;
@@ -983,8 +977,12 @@ void perf_evlist__munmap(struct perf_evlist *evlist)
return;
for (i = 0; i < evlist->nr_mmaps; i++)
- __perf_evlist__munmap(evlist, i);
+ perf_mmap__munmap(&evlist->mmap[i]);
+}
+void perf_evlist__munmap(struct perf_evlist *evlist)
+{
+ perf_evlist__munmap_nofree(evlist);
zfree(&evlist->mmap);
}
@@ -1142,8 +1140,7 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist,
return 0;
out_unmap:
- for (cpu = 0; cpu < nr_cpus; cpu++)
- __perf_evlist__munmap(evlist, cpu);
+ perf_evlist__munmap_nofree(evlist);
return -1;
}
@@ -1168,8 +1165,7 @@ static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist,
return 0;
out_unmap:
- for (thread = 0; thread < nr_threads; thread++)
- __perf_evlist__munmap(evlist, thread);
+ perf_evlist__munmap_nofree(evlist);
return -1;
}
--
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