| From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| Date: Tue, 3 Mar 2020 13:43:25 +0100 |
| Subject: [PATCH] =?UTF-8?q?mm/compaction:=20Really=20limit=20compact=5Fune?= |
| =?UTF-8?q?victable=5Fallowed=20to=200=E2=80=A61?= |
| MIME-Version: 1.0 |
| Content-Type: text/plain; charset=UTF-8 |
| Content-Transfer-Encoding: 8bit |
| |
| The proc file `compact_unevictable_allowed' should allow 0 and 1 only, |
| the `extra*' attribues have been set properly but without |
| proc_dointvec_minmax() as the `proc_handler' the limit will not be |
| enforced. |
| |
| Use proc_dointvec_minmax() as the `proc_handler' to enfoce the valid |
| specified range. |
| |
| Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| --- |
| kernel/sysctl.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/kernel/sysctl.c |
| +++ b/kernel/sysctl.c |
| @@ -1484,7 +1484,7 @@ static struct ctl_table vm_table[] = { |
| .data = &sysctl_compact_unevictable_allowed, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| - .proc_handler = proc_dointvec, |
| + .proc_handler = proc_dointvec_minmax, |
| .extra1 = SYSCTL_ZERO, |
| .extra2 = SYSCTL_ONE, |
| }, |
