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| author | Yajun Deng | 2022-06-07 18:18:07 +0800 |
|---|---|---|
| committer | Peter Zijlstra | 2022-06-13 10:30:00 +0200 |
| commit | 2ed81e765417ec2526f901366167a13294ef09ce (patch) | |
| tree | 9f30c3f54d330a73ec7225418039a6d111293516 /lib | |
| parent | 51bf903b64bdde4e4c9009a9e2b4a589845d9d81 (diff) | |
sched/deadline: Use proc_douintvec_minmax() limit minimum value
sysctl_sched_dl_period_max and sysctl_sched_dl_period_min are unsigned
integer, but proc_dointvec() wouldn't return error even if we set a
negative number.
Use proc_douintvec_minmax() instead of proc_dointvec(). Add extra1 for
sysctl_sched_dl_period_max and extra2 for sysctl_sched_dl_period_min.
It's just an optimization for match data and proc_handler in struct
ctl_table. The 'if (period < min || period > max)' in __checkparam_dl()
will work fine even if there hasn't this patch.
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Link: https://lore.kernel.org/r/20220607101807.249965-1-yajun.deng@linux.dev
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions