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compile error on old linux machines (Redhat 6.2)

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Hieu Hoang 2016-04-10 16:25:17 +04:00
parent 2abb9a2779
commit ba0a3d92f4
1 changed files with 2 additions and 0 deletions
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2
util/mmap.cc
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@ -173,8 +173,10 @@ bool TryHuge(std::size_t size, uint8_t alignment_bits, bool populate, util::scop
// Second try: manually configured hugetlb pages exist, but kernel too old to
// pick size or not available. This might pick the wrong size huge pages,
// but the sysadmin must have made them available in the first place.
#ifdef MAP_HUGETLB
if (AnonymousMap(size, MAP_HUGETLB, populate, to))
return true;
#endif
// Third try: align to a multiple of the huge page size by overallocating.
// I feel bad about doing this, but it's also how posix_memalign is