diff options
Diffstat (limited to 'src/huge.c')
| -rw-r--r-- | src/huge.c | 30 |
1 files changed, 16 insertions, 14 deletions
@@ -133,7 +133,7 @@ huge_ralloc_no_move_similar(void *ptr, size_t oldsize, size_t usize_min, extent_node_t *node; arena_t *arena; chunk_hooks_t chunk_hooks = CHUNK_HOOKS_INITIALIZER; - bool zeroed; + bool pre_zeroed, post_zeroed; /* Increase usize to incorporate extra. */ for (usize = usize_min; usize < usize_max && (usize_next = s2u(usize+1)) @@ -145,26 +145,27 @@ huge_ralloc_no_move_similar(void *ptr, size_t oldsize, size_t usize_min, node = huge_node_get(ptr); arena = extent_node_arena_get(node); + pre_zeroed = extent_node_zeroed_get(node); /* Fill if necessary (shrinking). */ if (oldsize > usize) { size_t sdiff = oldsize - usize; if (config_fill && unlikely(opt_junk_free)) { memset((void *)((uintptr_t)ptr + usize), 0x5a, sdiff); - zeroed = false; + post_zeroed = false; } else { - zeroed = !chunk_purge_wrapper(arena, &chunk_hooks, ptr, - CHUNK_CEILING(oldsize), usize, sdiff); + post_zeroed = !chunk_purge_wrapper(arena, &chunk_hooks, + ptr, CHUNK_CEILING(oldsize), usize, sdiff); } } else - zeroed = true; + post_zeroed = pre_zeroed; malloc_mutex_lock(&arena->huge_mtx); /* Update the size of the huge allocation. */ assert(extent_node_size_get(node) != usize); extent_node_size_set(node, usize); - /* Clear node's zeroed field if zeroing failed above. */ - extent_node_zeroed_set(node, extent_node_zeroed_get(node) && zeroed); + /* Update zeroed. */ + extent_node_zeroed_set(node, post_zeroed); malloc_mutex_unlock(&arena->huge_mtx); arena_chunk_ralloc_huge_similar(arena, ptr, oldsize, usize); @@ -172,7 +173,7 @@ huge_ralloc_no_move_similar(void *ptr, size_t oldsize, size_t usize_min, /* Fill if necessary (growing). */ if (oldsize < usize) { if (zero || (config_fill && unlikely(opt_zero))) { - if (!zeroed) { + if (!pre_zeroed) { memset((void *)((uintptr_t)ptr + oldsize), 0, usize - oldsize); } @@ -190,10 +191,11 @@ huge_ralloc_no_move_shrink(void *ptr, size_t oldsize, size_t usize) arena_t *arena; chunk_hooks_t chunk_hooks; size_t cdiff; - bool zeroed; + bool pre_zeroed, post_zeroed; node = huge_node_get(ptr); arena = extent_node_arena_get(node); + pre_zeroed = extent_node_zeroed_get(node); chunk_hooks = chunk_hooks_get(arena); assert(oldsize > usize); @@ -209,21 +211,21 @@ huge_ralloc_no_move_shrink(void *ptr, size_t oldsize, size_t usize) if (config_fill && unlikely(opt_junk_free)) { huge_dalloc_junk((void *)((uintptr_t)ptr + usize), sdiff); - zeroed = false; + post_zeroed = false; } else { - zeroed = !chunk_purge_wrapper(arena, &chunk_hooks, + post_zeroed = !chunk_purge_wrapper(arena, &chunk_hooks, CHUNK_ADDR2BASE((uintptr_t)ptr + usize), CHUNK_CEILING(oldsize), CHUNK_ADDR2OFFSET((uintptr_t)ptr + usize), sdiff); } } else - zeroed = true; + post_zeroed = pre_zeroed; malloc_mutex_lock(&arena->huge_mtx); /* Update the size of the huge allocation. */ extent_node_size_set(node, usize); - /* Clear node's zeroed field if zeroing failed above. */ - extent_node_zeroed_set(node, extent_node_zeroed_get(node) && zeroed); + /* Update zeroed. */ + extent_node_zeroed_set(node, post_zeroed); malloc_mutex_unlock(&arena->huge_mtx); /* Zap the excess chunks. */ |