drop_caches: add some documentation and info message

[deliverable/linux.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 09d2e2413605bc027066d6c07436f8488371d882..5c14b547882ef1dabfcd9cd80f5903e173ef4ec4 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -123,7 +123,7 @@ static int __maybe_unused neg_one = -1;
 static int zero;
 static int __maybe_unused one = 1;
 static int __maybe_unused two = 2;
-static int __maybe_unused three = 3;
+static int __maybe_unused four = 4;
 static unsigned long one_ul = 1;
 static int one_hundred = 100;
 #ifdef CONFIG_PRINTK
@@ -1264,7 +1264,7 @@ static struct ctl_table vm_table[] = {
                .mode           = 0644,
                .proc_handler   = drop_caches_sysctl_handler,
                .extra1         = &one,
-               .extra2         = &three,
+               .extra2         = &four,
        },
 #ifdef CONFIG_COMPACTION
        {