diff options
Diffstat (limited to 'src/pkg/runtime/mheap.c')
| -rw-r--r-- | src/pkg/runtime/mheap.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/src/pkg/runtime/mheap.c b/src/pkg/runtime/mheap.c index 0c9ac0a09..8061b7cf8 100644 --- a/src/pkg/runtime/mheap.c +++ b/src/pkg/runtime/mheap.c @@ -180,7 +180,9 @@ MHeap_Grow(MHeap *h, uintptr npage) // Allocate a multiple of 64kB (16 pages). npage = (npage+15)&~15; ask = npage<<PageShift; - if(ask < HeapAllocChunk) + if(ask > h->arena_end - h->arena_used) + return false; + if(ask < HeapAllocChunk && HeapAllocChunk <= h->arena_end - h->arena_used) ask = HeapAllocChunk; v = runtime·MHeap_SysAlloc(h, ask); @@ -194,11 +196,6 @@ MHeap_Grow(MHeap *h, uintptr npage) } mstats.heap_sys += ask; - if((byte*)v < h->arena_start || h->arena_start == nil) - h->arena_start = v; - if((byte*)v+ask > h->arena_end) - h->arena_end = (byte*)v+ask; - // Create a fake "in use" span and free it, so that the // right coalescing happens. s = runtime·FixAlloc_Alloc(&h->spanalloc); @@ -370,10 +367,14 @@ runtime·MSpanList_IsEmpty(MSpan *list) void runtime·MSpanList_Insert(MSpan *list, MSpan *span) { - if(span->next != nil || span->prev != nil) + if(span->next != nil || span->prev != nil) { + runtime·printf("failed MSpanList_Insert %p %p %p\n", span, span->next, span->prev); runtime·throw("MSpanList_Insert"); + } span->next = list->next; span->prev = list; span->next->prev = span; span->prev->next = span; } + + |