svn commit: r339075 - in head/sys: sys vm

[Mark Johnston]

Author: markj
Date: Mon Oct  1 18:51:39 2018
New Revision: 339075
URL: https://svnweb.freebsd.org/changeset/base/339075

Log:
  Use an unsigned iterator for domain sets.
  
  Otherwise (iter % ds->ds_cnt) is not guaranteed to lie in the range
  [0, MAXMEMDOM).
  
  Reported by:	pho
  Reviewed by:	kib
  Approved by:	re (rgrimes)
  Sponsored by:	The FreeBSD Foundation
  Differential Revision:	https://reviews.freebsd.org/D17374

Modified:
  head/sys/sys/_domainset.h
  head/sys/vm/vm_domainset.h

Modified: head/sys/sys/_domainset.h
==============================================================================
--- head/sys/sys/_domainset.h	Mon Oct  1 18:51:08 2018	(r339074)
+++ head/sys/sys/_domainset.h	Mon Oct  1 18:51:39 2018	(r339075)
@@ -54,7 +54,7 @@ typedef struct _domainset domainset_t;
 struct domainset;
 struct domainset_ref {
 	struct domainset * volatile	dr_policy;
-	int				dr_iterator;
+	unsigned int			dr_iterator;
 };
 
 #endif /* !_SYS__DOMAINSET_H_ */

Modified: head/sys/vm/vm_domainset.h
==============================================================================
--- head/sys/vm/vm_domainset.h	Mon Oct  1 18:51:08 2018	(r339074)
+++ head/sys/vm/vm_domainset.h	Mon Oct  1 18:51:39 2018	(r339075)
@@ -32,7 +32,7 @@
 
 struct vm_domainset_iter {
 	struct domainset	*di_domain;
-	int			*di_iter;
+	unsigned int		*di_iter;
 	vm_pindex_t		di_offset;
 	int			di_flags;
 	uint16_t		di_policy;