Use per-domain locks for vm page queue free. Move paging control from

global to per-domain state.  Protect reservations with the free lock
from the domain that they belong to.  Refactor to make vm domains more
of a first class object.

Reviewed by:    markj, kib, gallatin
Tested by:      pho
Sponsored by:   Netflix, Dell/EMC Isilon
Differential Revision:  https://reviews.freebsd.org/D14000

1 files changed, 5 insertions, 4 deletions

diff --git a/sys/vm/vm_pageout.h b/sys/vm/vm_pageout.h
index 60ee00d9e820..0894cd1541aa 100644
--- a/sys/vm/vm_pageout.h
+++ b/sys/vm/vm_pageout.h
@@ -74,9 +74,7 @@
  */
 
 extern int vm_page_max_wired;
-extern int vm_pageout_deficit;
 extern int vm_pageout_page_count;
-extern bool vm_pages_needed;
 
 #define	VM_OOM_MEM	1
 #define	VM_OOM_SWAPZ	2
@@ -95,12 +93,15 @@ extern bool vm_pages_needed;
  *	Signal pageout-daemon and wait for it.
  */
 
-void pagedaemon_wait(int pri, const char *wmesg);
-void pagedaemon_wakeup(void);
+void pagedaemon_wait(int domain, int pri, const char *wmesg);
+void pagedaemon_wakeup(int domain);
 #define VM_WAIT vm_wait()
 #define VM_WAITPFAULT vm_waitpfault()
 void vm_wait(void);
 void vm_waitpfault(void);
+void vm_wait_domain(int domain);
+void vm_wait_min(void);
+void vm_wait_severe(void);
 
 #ifdef _KERNEL
 int vm_pageout_flush(vm_page_t *, int, int, int, int *, boolean_t *);