diff options
Diffstat (limited to 'malloc')
| -rw-r--r-- | malloc/arena.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/malloc/arena.c b/malloc/arena.c index b44e307ade..cb45a048cd 100644 --- a/malloc/arena.c +++ b/malloc/arena.c @@ -696,14 +696,20 @@ heap_trim (heap_info *heap, size_t pad) } /* Uses similar logic for per-thread arenas as the main arena with systrim - by preserving the top pad and at least a page. */ + and _int_free by preserving the top pad and rounding down to the nearest + page. */ top_size = chunksize (top_chunk); + if ((unsigned long)(top_size) < + (unsigned long)(mp_.trim_threshold)) + return 0; + top_area = top_size - MINSIZE - 1; if (top_area < 0 || (size_t) top_area <= pad) return 0; + /* Release in pagesize units and round down to the nearest page. */ extra = ALIGN_DOWN(top_area - pad, pagesz); - if ((unsigned long) extra < mp_.trim_threshold) + if (extra == 0) return 0; /* Try to shrink. */ |