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Commit 93c59907c6f247d09239135caecf294a106a2ae0

Authored by Veaceslav Falico
Committed by Linus Torvalds
1 parent 4dd66e69d4

copy_signal() cleanup: clean thread_group_cputime_init() 

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>

Showing 2 changed files with 0 additions and 13 deletions Side-by-side Diff

include/linux/sched.h
Diff comments   View file @ 93c5990
... ... @@ -2391,9 +2391,7 @@
2391 2391  
2392 2392 static inline void thread_group_cputime_init(struct signal_struct *sig)
2393 2393 {
2394   - sig->cputimer.cputime = INIT_CPUTIME;
2395 2394 spin_lock_init(&sig->cputimer.lock);
2396   - sig->cputimer.running = 0;
2397 2395 }
2398 2396  
2399 2397 static inline void thread_group_cputime_free(struct signal_struct *sig)
... ... @@ -833,17 +833,6 @@
833 833 /* Thread group counters. */
834 834 thread_group_cputime_init(sig);
835 835  
836   - /* Expiration times and increments. */
837   - sig->it[CPUCLOCK_PROF].expires = cputime_zero;
838   - sig->it[CPUCLOCK_PROF].incr = cputime_zero;
839   - sig->it[CPUCLOCK_VIRT].expires = cputime_zero;
840   - sig->it[CPUCLOCK_VIRT].incr = cputime_zero;
841   -
842   - /* Cached expiration times. */
843   - sig->cputime_expires.prof_exp = cputime_zero;
844   - sig->cputime_expires.virt_exp = cputime_zero;
845   - sig->cputime_expires.sched_exp = 0;
846   -
847 836 cpu_limit = ACCESS_ONCE(sig->rlim[RLIMIT_CPU].rlim_cur);
848 837 if (cpu_limit != RLIM_INFINITY) {
849 838 sig->cputime_expires.prof_exp = secs_to_cputime(cpu_limit);