diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/sys/common/erl_mmap.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/erts/emulator/sys/common/erl_mmap.c b/erts/emulator/sys/common/erl_mmap.c index 317e3ec391..237820d3ec 100644 --- a/erts/emulator/sys/common/erl_mmap.c +++ b/erts/emulator/sys/common/erl_mmap.c @@ -482,6 +482,14 @@ static ERTS_INLINE ErtsFreeSegDesc* node_to_desc(enum SortOrder order, RBTNode* return order==ADDR_ORDER ? anode_to_desc(node) : snode_to_desc(node); } +static ERTS_INLINE SWord usable_size(enum SortOrder order, + ErtsFreeSegDesc* desc) +{ + return ((order == SA_SZ_ADDR_ORDER) ? + ERTS_SUPERALIGNED_FLOOR(desc->end) - ERTS_SUPERALIGNED_CEILING(desc->start) + : desc->end - desc->start); +} + #ifdef HARD_DEBUG static ERTS_INLINE SWord cmp_nodes(enum SortOrder order, RBTNode* lhs, RBTNode* rhs) @@ -490,17 +498,7 @@ static ERTS_INLINE SWord cmp_nodes(enum SortOrder order, ErtsFreeSegDesc* rdesc = node_to_desc(order, rhs); RBT_ASSERT(lhs != rhs); if (order != ADDR_ORDER) { - SWord lsz, rsz, diff; - if (order == SA_SZ_ADDR_ORDER) { - lsz = ERTS_SUPERALIGNED_FLOOR(ldesc->end) - ERTS_SUPERALIGNED_CEILING(ldesc->start); - rsz = ERTS_SUPERALIGNED_FLOOR(rdesc->end) - ERTS_SUPERALIGNED_CEILING(rdesc->start); - } - else { - RBT_ASSERT(order == SZ_REVERSE_ADDR_ORDER); - lsz = ldesc->end - ldesc->start; - rsz = rdesc->end - rdesc->start; - } - diff = lsz - rsz; + SWord diff = usable_size(order, ldesc) - usable_size(order, rdesc); if (diff) return diff; } if (order != SZ_REVERSE_ADDR_ORDER) { @@ -517,13 +515,9 @@ static ERTS_INLINE SWord cmp_with_node(enum SortOrder order, { ErtsFreeSegDesc* rdesc; if (order != ADDR_ORDER) { - SWord rhs_sz, diff; + SWord diff; rdesc = snode_to_desc(rhs); - if (order == SA_SZ_ADDR_ORDER) - rhs_sz = ERTS_SUPERALIGNED_FLOOR(rdesc->end) - ERTS_SUPERALIGNED_CEILING(rdesc->start); - else - rhs_sz = rdesc->end - rdesc->start; - diff = sz - rhs_sz; + diff = sz - usable_size(order, rdesc); if (diff) return diff; } else @@ -1163,16 +1157,17 @@ static void delete_free_seg(ErtsFreeSegMap* map, ErtsFreeSegDesc* desc) map->nseg--; } -/* Lookup a free segment in 'map' with a size of at least 'need_sz' bytes. +/* Lookup a free segment in 'map' with a size of at least 'need_sz' usable bytes. */ static ErtsFreeSegDesc* lookup_free_seg(ErtsFreeSegMap* map, SWord need_sz) { RBTNode* x = map->stree.root; ErtsFreeSegDesc* best_desc = NULL; + const enum SortOrder order = map->stree.order; while (x) { ErtsFreeSegDesc* desc = snode_to_desc(x); - SWord seg_sz = desc->end - desc->start; + SWord seg_sz = usable_size(order, desc); if (seg_sz < need_sz) { x = x->right; |