1 files changed, 76 insertions, 0 deletions

diff --git a/include/linux/coda_proc.h b/include/linux/coda_proc.h
new file mode 100644
index 000000000000..0dc1b0458e75
--- /dev/null
+++ b/include/linux/coda_proc.h
@@ -0,0 +1,76 @@
+/*
+ * coda_statis.h
+ * 
+ * CODA operation statistics
+ *
+ * (c) March, 1998
+ * by Michihiro Kuramochi, Zhenyu Xia and Zhanyong Wan
+ * zhanyong.wan@yale.edu
+ *
+ */
+
+#ifndef _CODA_PROC_H
+#define _CODA_PROC_H
+
+void coda_sysctl_init(void);
+void coda_sysctl_clean(void);
+
+#include <linux/sysctl.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda.h>
+
+/* these four files are presented to show the result of the statistics:
+ *
+ *      /proc/fs/coda/vfs_stats
+ *                    cache_inv_stats
+ *
+ * these four files are presented to reset the statistics to 0:
+ *
+ *      /proc/sys/coda/vfs_stats
+ *                     cache_inv_stats
+ */
+
+/* VFS operation statistics */
+struct coda_vfs_stats 
+{
+        /* file operations */
+        int open;
+        int flush;
+        int release;
+        int fsync;
+
+        /* dir operations */
+        int readdir;
+  
+        /* inode operations */
+        int create;
+        int lookup;
+        int link;
+        int unlink;
+        int symlink;
+        int mkdir;
+        int rmdir;
+        int rename;
+        int permission;
+
+        /* symlink operatoins*/
+        int follow_link;
+        int readlink;
+};
+
+/* cache invalidation statistics */
+struct coda_cache_inv_stats
+{
+        int flush;
+        int purge_user;
+        int zap_dir;
+        int zap_file;
+        int zap_vnode;
+        int purge_fid;
+        int replace;
+};
+
+/* these global variables hold the actual statistics data */
+extern struct coda_vfs_stats            coda_vfs_stat;
+
+#endif /* _CODA_PROC_H */