From mboxrd@z Thu Jan 1 00:00:00 1970 From: kosaki.motohiro@jp.fujitsu.com (KOSAKI Motohiro) Date: Tue, 28 Oct 2008 14:21:32 +0900 (JST) Subject: [ltt-dev] [PATCH] fix build error of marker.c Message-ID: <20081028141551.AAB6.KOSAKI.MOTOHIRO@jp.fujitsu.com> Hi Mathieu, I got lttng from following tree. but it can't build. $ git-clone git://git.kernel.org/pub/scm/linux/kernel/git/compudj/linux-2.6-lttng.git Perhaps, I got code form wrong git repo? Patch against: head of the repository of git://git.kernel.org/pub/scm/linux/kernel/git/compudj/linux-2.6-lttng.git ------------------------------------------------ fix following build error. CC kernel/marker.o kernel/marker.c: In function ?sys_marker?: kernel/marker.c:993: error: ?markers_mutex? undeclared (first use in this function) kernel/marker.c:993: error: (Each undeclared identifier is reported only once kernel/marker.c:993: error: for each function it appears in.) kernel/marker.c: In function ?marker_update_processes?: kernel/marker.c:1081: error: ?markers_mutex? undeclared (first use in this function) kernel/marker.c: In function ?marker_update_process?: kernel/marker.c:1111: error: ?markers_mutex? undeclared (first use in this function) kernel/marker.c: In function ?exit_user_markers?: kernel/marker.c:1159: error: ?markers_mutex? undeclared (first use in this function) kernel/marker.c: In function ?is_marker_enabled?: kernel/marker.c:1175: error: ?markers_mutex? undeclared (first use in this function) Signed-off-by: KOSAKI Motohiro --- kernel/marker.c | 6 ++++++ 1 file changed, 6 insertions(+) Index: b/kernel/marker.c =================================================================== --- a/kernel/marker.c 2008-10-28 12:42:14.000000000 +0900 +++ b/kernel/marker.c 2008-10-28 13:46:49.000000000 +0900 @@ -36,6 +36,12 @@ extern struct marker __stop___markers[]; static const int marker_debug; /* + * markers_mutex nests inside module_mutex. Markers mutex protects the builtin + * and module markers and the hash table. + */ +static DEFINE_MUTEX(markers_mutex); + +/* * Marker hash table, containing the active markers. * lock_modules() protects the builtin and module markers and the hash table. */