svn commit: r303052 - in head/sys: sys vm

[Mark Johnston]

Author: markj
Date: Wed Jul 20 00:09:22 2016
New Revision: 303052
URL: https://svnweb.freebsd.org/changeset/base/303052

Log:
  Make vm_pageout_wakeup_thresh a u_int rather than an int.
  
  It's a threshold for v_free_count, which is of type u_int. This also lets
  us get rid of a cast in vm_paging_needed().
  
  Reviewed by:	alc
  MFC after:	1 week

Modified:
  head/sys/sys/vmmeter.h
  head/sys/vm/vm_pageout.c

Modified: head/sys/sys/vmmeter.h
==============================================================================
--- head/sys/sys/vmmeter.h	Wed Jul 20 00:06:03 2016	(r303051)
+++ head/sys/sys/vmmeter.h	Wed Jul 20 00:09:22 2016	(r303052)
@@ -117,7 +117,7 @@ struct vmmeter {
 
 extern struct vmmeter vm_cnt;
 
-extern int vm_pageout_wakeup_thresh;
+extern u_int vm_pageout_wakeup_thresh;
 
 /*
  * Return TRUE if we are under our severe low-free-pages threshold
@@ -181,7 +181,7 @@ vm_paging_needed(void)
 {
 
 	return (vm_cnt.v_free_count + vm_cnt.v_cache_count <
-	    (u_int)vm_pageout_wakeup_thresh);
+	    vm_pageout_wakeup_thresh);
 }
 
 #endif

Modified: head/sys/vm/vm_pageout.c
==============================================================================
--- head/sys/vm/vm_pageout.c	Wed Jul 20 00:06:03 2016	(r303051)
+++ head/sys/vm/vm_pageout.c	Wed Jul 20 00:09:22 2016	(r303052)
@@ -157,7 +157,7 @@ SYSINIT(vmdaemon, SI_SUB_KTHREAD_VM, SI_
 
 
 int vm_pageout_deficit;		/* Estimated number of pages deficit */
-int vm_pageout_wakeup_thresh;
+u_int vm_pageout_wakeup_thresh;
 static int vm_pageout_oom_seq = 12;
 bool vm_pageout_wanted;		/* Event on which pageout daemon sleeps */
 bool vm_pages_needed;		/* Are threads waiting for free pages? */