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Clear tcache_ql after fork in child.

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Qi Wang 2017-06-19 21:19:15 -07:00 committed by Qi Wang
parent 9b1befabbb
commit d35c037e03
1 changed files with 17 additions and 0 deletions
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17
src/arena.c
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@ -2133,6 +2133,23 @@ void
arena_postfork_child(tsdn_t *tsdn, arena_t *arena) { arena_postfork_child(tsdn_t *tsdn, arena_t *arena) {
unsigned i; unsigned i;
atomic_store_u(&arena->nthreads[0], 0, ATOMIC_RELAXED);
atomic_store_u(&arena->nthreads[1], 0, ATOMIC_RELAXED);
if (tsd_arena_get(tsdn_tsd(tsdn)) == arena) {
arena_nthreads_inc(arena, false);
}
if (tsd_iarena_get(tsdn_tsd(tsdn)) == arena) {
arena_nthreads_inc(arena, true);
}
if (config_stats) {
ql_new(&arena->tcache_ql);
tcache_t *tcache = tcache_get(tsdn_tsd(tsdn));
if (tcache != NULL && tcache->arena == arena) {
ql_elm_new(tcache, link);
ql_tail_insert(&arena->tcache_ql, tcache, link);
}
}
for (i = 0; i < NBINS; i++) { for (i = 0; i < NBINS; i++) {
malloc_mutex_postfork_child(tsdn, &arena->bins[i].lock); malloc_mutex_postfork_child(tsdn, &arena->bins[i].lock);
} }