See inline comment: otherwise we could deadlock waiting for busy pages.
At the same time, make page_faults_allowed just an int16 and drop
atomics and extra checks, they aren't needed.
Fixes#19441.
Change-Id: I1b7cc06f66b44c3520fa36497c076ee5a6320706
Reviewed-on: https://review.haiku-os.org/c/haiku/+/9120
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: waddlesplash <[email protected]>
Augustin Cavalier
20a6449385