diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/compat.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/compat.c b/kernel/compat.c index f4da56c960f8..701e39120b22 100644 --- a/kernel/compat.c +++ b/kernel/compat.c @@ -156,3 +156,23 @@ asmlinkage long compat_sys_setitimer(int which, struct compat_itimerval *in, return -EFAULT; return 0; } + +asmlinkage long compat_sys_times(struct compat_tms *tbuf) +{ + /* + * In the SMP world we might just be unlucky and have one of + * the times increment as we use it. Since the value is an + * atomically safe type this is just fine. Conceptually its + * as if the syscall took an instant longer to occur. + */ + if (tbuf) { + struct compat_tms tmp; + tmp.tms_utime = compat_jiffies_to_clock_t(current->utime); + tmp.tms_stime = compat_jiffies_to_clock_t(current->stime); + tmp.tms_cutime = compat_jiffies_to_clock_t(current->cutime); + tmp.tms_cstime = compat_jiffies_to_clock_t(current->cstime); + if (copy_to_user(tbuf, &tmp, sizeof(tmp))) + return -EFAULT; + } + return compat_jiffies_to_clock_t(jiffies); +} |