1 files changed, 14 insertions, 2 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 5a0fd518e04e..60763c043aa3 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -125,6 +125,15 @@ int nr_threads;			/* The idle threads do not count.. */
 
 static int max_threads;         /* tunable limit on nr_threads */
 
+#define NAMED_ARRAY_INDEX(x)    [x] = __stringify(x)
+
+static const char * const resident_page_types[] = {
+        NAMED_ARRAY_INDEX(MM_FILEPAGES),
+        NAMED_ARRAY_INDEX(MM_ANONPAGES),
+        NAMED_ARRAY_INDEX(MM_SWAPENTS),
+        NAMED_ARRAY_INDEX(MM_SHMEMPAGES),
+};
+
 DEFINE_PER_CPU(unsigned long, process_counts) = 0;
 
 __cacheline_aligned DEFINE_RWLOCK(tasklist_lock);  /* outer */
@@ -645,12 +654,15 @@ static void check_mm(struct mm_struct *mm)
 {
         int i;
 
+        BUILD_BUG_ON_MSG(ARRAY_SIZE(resident_page_types) != NR_MM_COUNTERS,
+                         "Please make sure 'struct resident_page_types[]' is updated as well");
+
         for (i = 0; i < NR_MM_COUNTERS; i++) {
                 long x = atomic_long_read(&mm->rss_stat.count[i]);
 
                 if (unlikely(x))
-                        printk(KERN_ALERT "BUG: Bad rss-counter state "
-                                          "mm:%p idx:%d val:%ld\n", mm, i, x);
+                        pr_alert("BUG: Bad rss-counter state mm:%p type:%s val:%ld\n",
+                                 mm, resident_page_types[i], x);
         }
 
         if (mm_pgtables_bytes(mm))