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8152120: TLAB compute_size() should not allow any size larger than max_size

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Limit TLAB compute_size() to be less than or equal to TLAB max

Reviewed-by: sjohanss, jmasa
This commit is contained in:
Sangheon Kim 2016-03-21 13:04:10 -07:00
parent 09a7ae4e60
commit b5a940227e
1 changed files with 2 additions and 2 deletions
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4
hotspot/src/share/vm/gc/shared/threadLocalAllocBuffer.inline.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -61,7 +61,7 @@ inline size_t ThreadLocalAllocBuffer::compute_size(size_t obj_size) {
// unsafe_max_tlab_alloc is just a hint.
const size_t available_size = Universe::heap()->unsafe_max_tlab_alloc(myThread()) /
HeapWordSize;
size_t new_tlab_size = MIN2(available_size, desired_size() + aligned_obj_size);
size_t new_tlab_size = MIN3(available_size, desired_size() + aligned_obj_size, max_size());
// Make sure there's enough room for object and filler int[].
const size_t obj_plus_filler_size = aligned_obj_size + alignment_reserve();