Branch HEAD

b=14424
r=johann, bwzhou

Add severl module parameters for lustre tunables

lnet/libcfs/debug.c

@@ -35,29 +35,44 @@ static char debug_file_name[1024];
 
 #ifdef __KERNEL__
 unsigned int libcfs_subsystem_debug = ~0;
+CFS_MODULE_PARM(libcfs_subsystem_debug, "i", int, 0644,
+                "Lustre kernel debug subsystem mask");
 EXPORT_SYMBOL(libcfs_subsystem_debug);
 
 unsigned int libcfs_debug = (D_EMERG | D_ERROR | D_WARNING | D_CONSOLE |
                              D_NETERROR | D_HA | D_CONFIG | D_IOCTL);
+CFS_MODULE_PARM(libcfs_debug, "i", int, 0644,
+                "Lustre kernel debug mask");
 EXPORT_SYMBOL(libcfs_debug);
 
 int libcfs_debug_mb = -1;
+CFS_MODULE_PARM(libcfs_debug_mb, "i", int, 0644,
+                "Total debug buffer size.");
 EXPORT_SYMBOL(libcfs_debug_mb);
-CFS_MODULE_PARM(libcfs_debug_mb, "i", int, 0644, "Total debug buffer size.");
 
 unsigned int libcfs_printk = D_CANTMASK;
+CFS_MODULE_PARM(libcfs_printk, "i", uint, 0644,
+                "Lustre kernel debug console mask");
 EXPORT_SYMBOL(libcfs_printk);
 
 unsigned int libcfs_console_ratelimit = 1;
+CFS_MODULE_PARM(libcfs_console_ratelimit, "i", uint, 0644,
+                "Lustre kernel debug console ratelimit (0 to disable)");
 EXPORT_SYMBOL(libcfs_console_ratelimit);
 
 cfs_duration_t libcfs_console_max_delay;
+CFS_MODULE_PARM(libcfs_console_max_delay, "l", ulong, 0644,
+                "Lustre kernel debug console max delay (jiffies)");
 EXPORT_SYMBOL(libcfs_console_max_delay);
 
 cfs_duration_t libcfs_console_min_delay;
+CFS_MODULE_PARM(libcfs_console_min_delay, "l", ulong, 0644,
+                "Lustre kernel debug console min delay (jiffies)");
 EXPORT_SYMBOL(libcfs_console_min_delay);
 
 unsigned int libcfs_console_backoff = CDEBUG_DEFAULT_BACKOFF;
+CFS_MODULE_PARM(libcfs_console_backoff, "i", uint, 0644,
+                "Lustre kernel debug console backoff factor");
 EXPORT_SYMBOL(libcfs_console_backoff);
 
 unsigned int libcfs_debug_binary = 1;
@@ -73,6 +88,8 @@ unsigned int libcfs_catastrophe;
 EXPORT_SYMBOL(libcfs_catastrophe);
 
 unsigned int libcfs_panic_on_lbug = 0;
+CFS_MODULE_PARM(libcfs_panic_on_lbug, "i", uint, 0644,
+                "Lustre kernel panic on LBUG");
 EXPORT_SYMBOL(libcfs_panic_on_lbug);
 
 atomic_t libcfs_kmemory = ATOMIC_INIT(0);