freebsd-dev/sys/dev/xen/gntdev
Jeff Roberson 0012f373e4 (4/6) Protect page valid with the busy lock.
Atomics are used for page busy and valid state when the shared busy is
held.  The details of the locking protocol and valid and dirty
synchronization are in the updated vm_page.h comments.

Reviewed by:    kib, markj
Tested by:      pho
Sponsored by:   Netflix, Intel
Differential Revision:        https://reviews.freebsd.org/D21594
2019-10-15 03:45:41 +00:00
..
gntdev.c (4/6) Protect page valid with the busy lock. 2019-10-15 03:45:41 +00:00