Branch HEAD

[fs/lustre-release.git] / libcfs / libcfs / linux / linux-proc.c

diff --git a/libcfs/libcfs/linux/linux-proc.c b/libcfs/libcfs/linux/linux-proc.c
index 6dd620a..21ba6e1 100644 (file)
--- a/libcfs/libcfs/linux/linux-proc.c
+++ b/libcfs/libcfs/linux/linux-proc.c
@@ -103,6 +103,7 @@ enum {
         PSDEV_LNET_DAEMON_FILE,   /* spool kernel debug buffer to file */
         PSDEV_LNET_DEBUG_MB,      /* size of debug buffer */
         PSDEV_LNET_DEBUG_LOG_UPCALL, /* debug log upcall script */
+        PSDEV_LNET_WATCHDOG_RATELIMIT,  /* ratelimit watchdog messages  */
 };
 #else
 #define CTL_LNET                        CTL_UNNUMBERED
@@ -123,6 +124,7 @@ enum {
 #define PSDEV_LNET_DAEMON_FILE          CTL_UNNUMBERED
 #define PSDEV_LNET_DEBUG_MB             CTL_UNNUMBERED
 #define PSDEV_LNET_DEBUG_LOG_UPCALL     CTL_UNNUMBERED
+#define PSDEV_LNET_WATCHDOG_RATELIMIT   CTL_UNNUMBERED
 #endif
 
 
@@ -188,6 +190,9 @@ static int __proc_dobitmasks(void *data, int write,
 
 DECLARE_PROC_HANDLER(proc_dobitmasks)
 
+static int min_watchdog_ratelimit = 0;          /* disable ratelimiting */
+static int max_watchdog_ratelimit = (24*60*60); /* limit to once per day */
+
 static int __proc_dump_kernel(void *data, int write,
                               loff_t pos, void *buffer, int nob)
 {
@@ -456,6 +461,16 @@ static cfs_sysctl_table_t lnet_table[] = {
                 .mode     = 0644,
                 .proc_handler = &proc_debug_mb,
         },
+        {
+                .ctl_name = PSDEV_LNET_WATCHDOG_RATELIMIT,
+                .procname = "watchdog_ratelimit",
+                .data     = &libcfs_watchdog_ratelimit,
+                .maxlen   = sizeof(int),
+                .mode     = 0644,
+                .proc_handler = &proc_dointvec_minmax,
+                .extra1   = &min_watchdog_ratelimit,
+                .extra2   = &max_watchdog_ratelimit,
+        },
         {0}
 };
 
@@ -476,7 +491,6 @@ static cfs_sysctl_table_t top_table[] = {
 int insert_proc(void)
 {
 #ifdef CONFIG_SYSCTL
-       printk("call register\n");
         if (lnet_table_header == NULL)
                 lnet_table_header = cfs_register_sysctl_table(top_table, 0);
 #endif