From c464c76eec4be587604ca082e8cded7e6b89f3bf Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Tue, 18 Mar 2014 16:56:41 +0800 Subject: perf: Allow building PMU drivers as modules This patch adds support for building PMU driver as module. It exports the functions perf_pmu_{register,unregister}() and adds reference tracking for the PMU driver module. When the PMU driver is built as a module, each active event of the PMU holds a reference to the driver module. Signed-off-by: Yan, Zheng Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1395133004-23205-1-git-send-email-zheng.z.yan@intel.com Cc: eranian@google.com Cc: Arnaldo Carvalho de Melo Cc: Linus Torvalds Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/perf_event.h') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 3356abcfff18..af6dcf1d9e47 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -172,6 +172,7 @@ struct perf_event; struct pmu { struct list_head entry; + struct module *module; struct device *dev; const struct attribute_group **attr_groups; const char *name; -- cgit v1.2.3