On (23/06/19 17:35), Alexey Romanov wrote: > > We use a variable of type unsigned int to store the offset > of the first object at the subpage In turn, the offset cannot > exceed the size of PAGE_SIZE, which is usually 4096. Thus, > 12 bits are enough to store the offset. [..] > If the page size is 4Kb It's certainly not a given. PAGE_SIZE is architecture specific. PAGE_SIZE_16KB and PAGE_SIZE_64KB would be simple examples, but there are, apparently, architectures that even can have PAGE_SIZE_256KB.
