mm/gup.c: update the documentation

[tomoyo/tomoyo-test1.git] / mm / vmstat.c

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 96d21a7..b1582fd 100644 (file)
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1108,7 +1108,7 @@ int fragmentation_index(struct zone *zone, unsigned int order)
                                        TEXT_FOR_HIGHMEM(xx) xx "_movable",
 
 const char * const vmstat_text[] = {
-       /* enum zone_stat_item countes */
+       /* enum zone_stat_item counters */
        "nr_free_pages",
        "nr_zone_inactive_anon",
        "nr_zone_active_anon",
@@ -1162,7 +1162,6 @@ const char * const vmstat_text[] = {
        "nr_file_hugepages",
        "nr_file_pmdmapped",
        "nr_anon_transparent_hugepages",
-       "nr_unstable",
        "nr_vmscan_write",
        "nr_vmscan_immediate_reclaim",
        "nr_dirtied",
@@ -1723,6 +1722,14 @@ static int vmstat_show(struct seq_file *m, void *arg)
        seq_puts(m, vmstat_text[off]);
        seq_put_decimal_ull(m, " ", *l);
        seq_putc(m, '\n');
+
+       if (off == NR_VMSTAT_ITEMS - 1) {
+               /*
+                * We've come to the end - add any deprecated counters to avoid
+                * breaking userspace which might depend on them being present.
+                */
+               seq_puts(m, "nr_unstable 0\n");
+       }
        return 0;
 }