October 2017
Intermediate to advanced
586 pages
14h 8m
English
Content preview from Linux Device Drivers Development
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial
Page allocator
The page allocator is the lowest level allocator on the Linux system, the one on which other allocators rely. The system's physical memory is made up of fixed-size blocks (called page frames). A page frame is represented in the kernel as an instance of the struct page structure. A page is the smallest unit of memory that the OS will give to any memory request at a low level.