diff options
| -rw-r--r-- | kernel/sys.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index 9bdf94f3ae29..9e157e0240d4 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1661,8 +1661,19 @@ asmlinkage long sys_setrlimit(unsigned int resource, struct rlimit __user *rlim) it_prof_secs = cputime_to_secs(current->signal->it_prof_expires); if (it_prof_secs == 0 || new_rlim.rlim_cur <= it_prof_secs) { - cputime_t cputime = secs_to_cputime(new_rlim.rlim_cur); + unsigned long rlim_cur = new_rlim.rlim_cur; + cputime_t cputime; + if (rlim_cur == 0) { + /* + * The caller is asking for an immediate RLIMIT_CPU + * expiry. But we use the zero value to mean "it was + * never set". So let's cheat and make it one second + * instead + */ + rlim_cur = 1; + } + cputime = secs_to_cputime(rlim_cur); read_lock(&tasklist_lock); spin_lock_irq(¤t->sighand->siglock); set_process_cpu_timer(current, CPUCLOCK_PROF, &cputime, NULL); |