add debugfs statistics and some code cleanup

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/mvf_sema4.h b/include/linux/mvf_sema4.h
index 898065afb23f..7a93551e4905 100644
--- a/include/linux/mvf_sema4.h
+++ b/include/linux/mvf_sema4.h
@@ -1,10 +1,22 @@
 #ifndef __MVF_SEMA4__
 #define __MVF_SEMA4__
 
+#include <linux/sched.h>
+
+#define MVF_SHMEM_SEMAPHORE_NUMBER      (1)
+#define MVF_PRINTF_SEMAPHORE_NUMBER     (2)
+#define MVF_I2C_SEMAPHORE_NUMBER        (3)
+#define MVF_RESERVED1_SEMAPHORE_NUMBER  (4)
+#define MVF_RESERVED2_SEMAPHORE_NUMBER  (5)
+
 typedef struct mvf_sema4_handle_struct {
 	int gate_num;
 	int use_interrupts;
 	wait_queue_head_t wait_queue;
+	// stats
+	unsigned long attempts;
+	unsigned long interrupts;
+	struct dentry *debugfs_file;
 } MVF_SEMA4;
 
 int mvf_sema4_assign(int gate_num, bool use_interrupts, MVF_SEMA4** sema4_p);