diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2021-10-07 15:24:06 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-10-07 15:24:06 -0700 |
| commit | 9fe1155233c8290ca6e206053e531ef87f9026ea (patch) | |
| tree | ef0d45b2562e01beb8ce4cb4cd016155b4e32a65 /kernel/sched/debug.c | |
| parent | c514fbb6231483b05c97eb22587188d4c453b28e (diff) | |
| parent | 1da38549dd64c7f5dd22427f12dfa8db3d8a722b (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'kernel/sched/debug.c')
| -rw-r--r-- | kernel/sched/debug.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 49716228efb4b..17a653b67006a 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -173,16 +173,22 @@ static ssize_t sched_scaling_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) { char buf[16]; + unsigned int scaling; if (cnt > 15) cnt = 15; if (copy_from_user(&buf, ubuf, cnt)) return -EFAULT; + buf[cnt] = '\0'; - if (kstrtouint(buf, 10, &sysctl_sched_tunable_scaling)) + if (kstrtouint(buf, 10, &scaling)) return -EINVAL; + if (scaling >= SCHED_TUNABLESCALING_END) + return -EINVAL; + + sysctl_sched_tunable_scaling = scaling; if (sched_update_scaling()) return -EINVAL; |