Justin C. Miller 99de8454cd [kernel] Fix some page allocation bugs ...

Fixing two page allocation issues I came across while debugging:

- Added a spinlock to the page_table static page cache, to avoid
  multiple CPUs grabbing the same page. This cache should probably
  just be made into per-CPU caches.
- Fixed a bitwise math issue ("1" instead of "1ull" when working with
  64-bit numbers) that made it so that pages were never marked as
  allocated when allocating 32 or more.

2021-12-31 20:35:11 -08:00

7.3 KiB

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