vm: use atomic fetchadd in vm_page_sunbusy
This also fixes a bug where not-last unbusy failed to post a release
fence.
Reviewed by: markj (previous version), kib (previous version)
Differential Revision: https://reviews.freebsd.org/D36084
Description
Description
Details
Details
- Provenance
mjg Authored on Aug 5 2022, 2:27 PM - Reviewer
- markj
- Differential Revision
- D36084: vm: use atomic fetchadd in vm_page_sunbusy
- Parents
- rGf7413197245c: ObsoleteFiles.inc: fix path of a few manual pages
- Branches
- Unknown
- Tags
- Reverted By
- rG1b89d40fbf77: Revert "vm: use atomic fetchadd in vm_page_sunbusy"