Lines Matching refs:region
52 // Attempt to find a region in the mapped region.
65 // No luck or hint is outside of the mapped region. Try to allocate pages in
71 // If an unmapped region exists, it must cover at least 50% of the whole
72 // space (unmapped + mapped region). Since we limit the size of allocation
73 // to 50% of the unmapped region (see IsUsableSizeForUnmappedRegion), a
111 // Can only allocate shared pages in the unmapped region.
122 Address region = parent_space_->AllocateSharedPages(hint, size, permissions,
124 if (UnmappedRegionContains(region, size)) {
125 return region;
126 } else if (region) {
127 parent_space_->FreeSharedPages(region, size);