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authorArnaldo Carvalho de Melo <acme@redhat.com>2012-10-16 14:51:04 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-10-29 12:36:46 -0200
commit0da2e9c24804d787cbc919b3e0d28ee7c00240ff (patch)
treed480571278f5952b3f22e43ebb6c75cd0416db5a /tools/perf/util/python.c
parentperf record: Fix mmap error output condition (diff)
downloadlinux-dev-0da2e9c24804d787cbc919b3e0d28ee7c00240ff.tar.xz
linux-dev-0da2e9c24804d787cbc919b3e0d28ee7c00240ff.zip
perf python: Initialize 'page_size' variable
The commit 0c1fe6b: 'perf tools: Have the page size value available for all tools' Broke the python binding because the global variable 'page_size' is initialized on the main() routine, that is not called when using just the python binding, causing evlist.mmap() to fail because it expects that variable to be initialized to the system's page size. Fix it by initializing it on the binding init routine. Reported-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vrvp3azmbfzexnpmkhmvtzzc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
-rw-r--r--tools/perf/util/python.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 9181bf212fb9..a2657fd96837 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -1015,6 +1015,8 @@ PyMODINIT_FUNC initperf(void)
pyrf_cpu_map__setup_types() < 0)
return;
+ page_size = sysconf(_SC_PAGE_SIZE);
+
Py_INCREF(&pyrf_evlist__type);
PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);