diff options
Diffstat (limited to 'kernel/sysctl.c')
| -rw-r--r-- | kernel/sysctl.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 40245d697602..97ab1690f5ed 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -117,6 +117,7 @@ static int 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 unsigned long one_ul = 1; static int one_hundred = 100; #ifdef CONFIG_PRINTK @@ -971,14 +972,18 @@ static struct ctl_table vm_table[] = { .data = &sysctl_overcommit_memory, .maxlen = sizeof(sysctl_overcommit_memory), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_dointvec_minmax, + .extra1 = &zero, + .extra2 = &two, }, { .procname = "panic_on_oom", .data = &sysctl_panic_on_oom, .maxlen = sizeof(sysctl_panic_on_oom), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_dointvec_minmax, + .extra1 = &zero, + .extra2 = &two, }, { .procname = "oom_kill_allocating_task", @@ -1006,7 +1011,8 @@ static struct ctl_table vm_table[] = { .data = &page_cluster, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_dointvec_minmax, + .extra1 = &zero, }, { .procname = "dirty_background_ratio", @@ -1054,7 +1060,8 @@ static struct ctl_table vm_table[] = { .data = &dirty_expire_interval, .maxlen = sizeof(dirty_expire_interval), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_dointvec_minmax, + .extra1 = &zero, }, { .procname = "nr_pdflush_threads", @@ -1130,6 +1137,8 @@ static struct ctl_table vm_table[] = { .maxlen = sizeof(int), .mode = 0644, .proc_handler = drop_caches_sysctl_handler, + .extra1 = &one, + .extra2 = &three, }, #ifdef CONFIG_COMPACTION { |