CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2021/05/16 11:41:30
Modified files:
sys/arch/arm64/arm64: pmap.c
Log message:
Drop PTE check in pmap_fault_fixup(). Since pmap_enter() doesn't
add PTE's for pages that haven't been accessed yet, the check would
skip the fixup on such pages and force us to go through uvm_fault()
just for the sake of MOD/REF bit emulation. Since we already check
the PTE descriptor, dropping the check should be safe. Doing so
gives us a nice 10% performance gain when building a kernel.
ok patrick@, drahn@
