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copy_signal() cleanup: clean thread_group_cputime_init()

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Remove unneeded initializations in thread_group_cputime_init() and in
posix_cpu_timers_init_group().  They are useless after kmem_cache_zalloc()
was used in copy_signal().

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Veaceslav Falico 2010-03-10 15:23:03 -08:00 committed by Linus Torvalds
parent 4dd66e69d4
commit 93c59907c6
2 changed files with 0 additions and 13 deletions
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2
include/linux/sched.h
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@ -2391,9 +2391,7 @@ void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times);
static inline void thread_group_cputime_init(struct signal_struct *sig)
{
sig->cputimer.cputime = INIT_CPUTIME;
spin_lock_init(&sig->cputimer.lock);
sig->cputimer.running = 0;
}
static inline void thread_group_cputime_free(struct signal_struct *sig)

11
kernel/fork.c
View File

@ -833,17 +833,6 @@ static void posix_cpu_timers_init_group(struct signal_struct *sig)
/* Thread group counters. */
thread_group_cputime_init(sig);
/* Expiration times and increments. */
sig->it[CPUCLOCK_PROF].expires = cputime_zero;
sig->it[CPUCLOCK_PROF].incr = cputime_zero;
sig->it[CPUCLOCK_VIRT].expires = cputime_zero;
sig->it[CPUCLOCK_VIRT].incr = cputime_zero;
/* Cached expiration times. */
sig->cputime_expires.prof_exp = cputime_zero;
sig->cputime_expires.virt_exp = cputime_zero;
sig->cputime_expires.sched_exp = 0;
cpu_limit = ACCESS_ONCE(sig->rlim[RLIMIT_CPU].rlim_cur);
if (cpu_limit != RLIM_INFINITY) {
sig->cputime_expires.prof_exp = secs_to_cputime(cpu_limit);