2 files changed, 23 insertions, 1 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 6f138280cdef..ab86766e28cb 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -467,6 +467,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         Format: { "0" | "1" } (0 = disabled, 1 = enabled)
                         Default: unset
                         
+        audit_backlog_limit= [KNL] Set the audit queue size limit.
+                        Format: <int> (must be >=0)
+                        Default: 64
+
         baycom_epp=     [HW,AX25]
                         Format: <io>,<mode>
 
diff --git a/kernel/audit.c b/kernel/audit.c
index b8fa4bf8563b..833f8e2003b7 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1099,9 +1099,27 @@ static int __init audit_enable(char *str)
 
         return 1;
 }
-
 __setup("audit=", audit_enable);
 
+/* Process kernel command-line parameter at boot time.
+ * audit_backlog_limit=<n> */
+static int __init audit_backlog_limit_set(char *str)
+{
+        long int audit_backlog_limit_arg;
+        pr_info("audit_backlog_limit: ");
+        if (kstrtol(str, 0, &audit_backlog_limit_arg)) {
+                printk("using default of %d, unable to parse %s\n",
+                       audit_backlog_limit, str);
+                return 1;
+        }
+        if (audit_backlog_limit_arg >= 0)
+                audit_backlog_limit = (int)audit_backlog_limit_arg;
+        printk("%d\n", audit_backlog_limit);
+
+        return 1;
+}
+__setup("audit_backlog_limit=", audit_backlog_limit_set);
+
 static void audit_buffer_free(struct audit_buffer *ab)
 {
         unsigned long flags;