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fix commit bits for huge page allocations

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This commit is contained in:
Daan Leijen 2019-11-20 15:44:07 -08:00
parent 211f1aa519
commit 049dbf41ba
1 changed files with 5 additions and 2 deletions
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7
src/memory.c
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@ -181,6 +181,7 @@ static bool mi_region_try_alloc_os(size_t blocks, bool commit, bool allow_large,
void* const start = _mi_arena_alloc_aligned(MI_REGION_SIZE, MI_SEGMENT_ALIGN, &region_commit, &region_large, &is_zero, &arena_memid, tld);
if (start == NULL) return false;
mi_assert_internal(!(region_large && !allow_large));
mi_assert_internal(!region_large || region_commit);
// claim a fresh slot
const uintptr_t idx = mi_atomic_increment(&regions_count);
@ -194,8 +195,8 @@ static bool mi_region_try_alloc_os(size_t blocks, bool commit, bool allow_large,
mem_region_t* r = &regions[idx];
r->arena_memid = arena_memid;
mi_atomic_write(&r->in_use, 0);
mi_atomic_write(&r->dirty, (is_zero ? 0 : ~0UL));
mi_atomic_write(&r->commit, (region_commit ? ~0UL : 0));
mi_atomic_write(&r->dirty, (is_zero ? 0 : MI_BITMAP_FIELD_FULL));
mi_atomic_write(&r->commit, (region_commit ? MI_BITMAP_FIELD_FULL : 0));
mi_atomic_write(&r->reset, 0);
*bit_idx = 0;
mi_bitmap_claim(&r->in_use, 1, blocks, *bit_idx, NULL);
@ -291,6 +292,7 @@ static void* mi_region_try_alloc(size_t blocks, bool* commit, bool* is_large, bo
bool any_uncommitted;
mi_bitmap_claim(&region->commit, 1, blocks, bit_idx, &any_uncommitted);
if (any_uncommitted) {
mi_assert_internal(!info.is_large);
bool commit_zero;
_mi_mem_commit(p, blocks * MI_SEGMENT_SIZE, &commit_zero, tld);
if (commit_zero) *is_zero = true;
@ -304,6 +306,7 @@ static void* mi_region_try_alloc(size_t blocks, bool* commit, bool* is_large, bo
// unreset reset blocks
if (mi_bitmap_is_any_claimed(&region->reset, 1, blocks, bit_idx)) {
mi_assert_internal(!info.is_large);
mi_assert_internal(!mi_option_is_enabled(mi_option_eager_commit) || *commit);
mi_bitmap_unclaim(&region->reset, 1, blocks, bit_idx);
bool reset_zero;