sysctl: handle overflow for file-max

[sagit-ice-cold/kernel_xiaomi_msm8998.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index beadcf8..2f98b11 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -126,6 +126,7 @@ static int __maybe_unused one = 1;
 static int __maybe_unused two = 2;
 static int __maybe_unused four = 4;
 static unsigned long one_ul = 1;
+static unsigned long long_max = LONG_MAX;
 static int one_hundred = 100;
 #ifdef CONFIG_PRINTK
 static int ten_thousand = 10000;
@@ -1603,6 +1604,8 @@ static struct ctl_table fs_table[] = {
                .maxlen         = sizeof(files_stat.max_files),
                .mode           = 0644,
                .proc_handler   = proc_doulongvec_minmax,
+               .extra1         = &zero,
+               .extra2         = &long_max,
        },
        {
                .procname       = "nr_open",