freebsd-skq/sys/riscv
Jeff Roberson 205be21d99 (3/6) Add a shared object busy synchronization mechanism that blocks new page
busy acquires while held.

This allows code that would need to acquire and release a very large number
of page busy locks to use the old mechanism where busy is only checked and
not held.  This comes at the cost of false positives but never false
negatives which the single consumer, vm_fault_soft_fast(), handles.

Reviewed by:    kib
Tested by:      pho
Sponsored by:   Netflix, Intel
Differential Revision:	https://reviews.freebsd.org/D21592
2019-10-15 03:41:36 +00:00
..
conf RISC-V: Support EARLY_AP_STARTUP 2019-09-16 22:17:16 +00:00
include Eliminate an unused declaration. The variable in question is only defined 2019-10-07 04:22:03 +00:00
riscv (3/6) Add a shared object busy synchronization mechanism that blocks new page 2019-10-15 03:41:36 +00:00