mirror of
https://github.com/freebsd/freebsd-src
synced 2024-10-06 16:40:47 +00:00
f1d73aacdc
Implement a simple heuristic to skip pointless promotion attempts by pmap_enter_quick_locked() and moea64_enter(). Specifically, when vm_fault() calls pmap_enter_quick() to map neighboring pages at the end of a copy-on-write fault, there is no point in attempting promotion in pmap_enter_quick_locked() and moea64_enter(). Promotion will fail because the base pages have differing protection. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D45431 MFC after: 1 week |
||
|---|---|---|
| .. | ||
| allwinner | ||
| conf | ||
| include | ||
| riscv | ||
| sifive | ||
| starfive | ||