diff options
| author | Myungho Jung <mhjungk@gmail.com> | 2017-04-19 22:24:50 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-05 07:44:04 (GMT) |
| commit | 4c00015385faccd992e98dfedfeaa07ac56d7194 (patch) | |
| tree | 2e855591f069209760ace52fcf25899fabd259af /kernel/sysctl.c | |
| parent | e2f803481a84804811656a658c32176b7eec36e8 (diff) | |
| download | linux-4c00015385faccd992e98dfedfeaa07ac56d7194.tar.xz | |
timer/sysclt: Restrict timer migration sysctl values to 0 and 1
commit b94bf594cf8ed67cdd0439e70fa939783471597a upstream.
timer_migration sysctl acts as a boolean switch, so the allowed values
should be restricted to 0 and 1.
Add the necessary extra fields to the sysctl table entry to enforce that.
[ tglx: Rewrote changelog ]
Signed-off-by: Myungho Jung <mhjungk@gmail.com>
Link: http://lkml.kernel.org/r/1492640690-3550-1-git-send-email-mhjungk@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kazuhiro Hayashi <kazuhiro3.hayashi@toshiba.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/sysctl.c')
| -rw-r--r-- | kernel/sysctl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 265e0d0..24d603d 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -1189,6 +1189,8 @@ static struct ctl_table kern_table[] = { .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = timer_migration_handler, + .extra1 = &zero, + .extra2 = &one, }, #endif #ifdef CONFIG_BPF_SYSCALL |