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  /external/chromium_org/third_party/WebKit/Source/wtf/
PageAllocator.h 47 static const size_t kSystemPageSize = 4096;
48 static const size_t kSystemPageOffsetMask = kSystemPageSize - 1;
50 static const size_t kNumSystemPagesPerSuperPage = kSuperPageSize / kSystemPageSize;
67 // len must be a multiple of kSystemPageSize bytes.
77 // len must be a multiple of kSystemPageSize bytes.
PageAllocator.cpp 76 ptr = reinterpret_cast<char*>(mmap(0, len + kSuperPageSize - kSystemPageSize, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0));
79 int numSystemPagesBefore = (kNumSystemPagesPerSuperPage - ((reinterpret_cast<uintptr_t>(ptr) & kSuperPageOffsetMask) / kSystemPageSize)) % kNumSystemPagesPerSuperPage;
83 size_t beforeSize = kSystemPageSize * numSystemPagesBefore;
89 ret = munmap(ptr + len, kSystemPageSize * numSystemPagesAfter);
PartitionAllocTest.cpp 456 void* map1 = mmap(pageBase - WTF::kSystemPageSize, WTF::kSystemPageSize, PROT_NONE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
458 void* map2 = mmap(pageBase + WTF::kSuperPageSize, WTF::kSystemPageSize, PROT_NONE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
466 munmap(map1, WTF::kSystemPageSize);
467 munmap(map2, WTF::kSystemPageSize);

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