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Convert arena->stats synchronization to atomics.

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This commit is contained in:
Jason Evans
2017-02-12 17:43:33 -08:00
parent fa2d64c94b
commit 6b5cba4191
9 changed files with 326 additions and 228 deletions
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15
src/large.c
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@@ -286,20 +286,23 @@ large_ralloc(tsdn_t *tsdn, arena_t *arena, extent_t *extent, size_t usize,
/*
* junked_locked indicates whether the extent's data have been junk-filled, and
* whether the arena's lock is currently held. The arena's large_mtx is
* independent of these considerations.
* whether the arena's large_mtx is currently held.
*/
static void
large_dalloc_prep_impl(tsdn_t *tsdn, arena_t *arena, extent_t *extent,
bool junked_locked) {
malloc_mutex_lock(tsdn, &arena->large_mtx);
extent_list_remove(&arena->large, extent);
malloc_mutex_unlock(tsdn, &arena->large_mtx);
if (!junked_locked) {
malloc_mutex_lock(tsdn, &arena->large_mtx);
extent_list_remove(&arena->large, extent);
malloc_mutex_unlock(tsdn, &arena->large_mtx);
large_dalloc_maybe_junk(extent_addr_get(extent),
extent_usize_get(extent));
} else {
malloc_mutex_assert_owner(tsdn, &arena->large_mtx);
extent_list_remove(&arena->large, extent);
}
arena_extent_dalloc_large_prep(tsdn, arena, extent, junked_locked);
arena_extent_dalloc_large_prep(tsdn, arena, extent);
}
static void