svn commit: r261676 - head/sys/arm/arm
Ian Lepore
ian at FreeBSD.org
Sun Feb 9 20:19:42 UTC 2014
Author: ian
Date: Sun Feb 9 20:19:41 2014
New Revision: 261676
URL: http://svnweb.freebsd.org/changeset/base/261676
Log:
Fix the exclude-region clipping logic for the edge-trim case.
Modified:
head/sys/arm/arm/physmem.c
Modified: head/sys/arm/arm/physmem.c
==============================================================================
--- head/sys/arm/arm/physmem.c Sun Feb 9 20:17:40 2014 (r261675)
+++ head/sys/arm/arm/physmem.c Sun Feb 9 20:19:41 2014 (r261676)
@@ -198,14 +198,14 @@ regions_to_avail(vm_paddr_t *avail, uint
continue;
}
/*
- * If excluded region partially overlaps this region,
- * trim the excluded portion off the appropriate end.
+ * We know the excluded region overlaps either the start
+ * or end of this hardware region (but not both), trim
+ * the excluded portion off the appropriate end.
*/
- if ((xstart >= start) && (xstart <= end)) {
- end = xstart;
- } else if ((xend >= start) && (xend <= end)) {
+ if (xstart <= start)
start = xend;
- }
+ else
+ end = xstart;
}
/*
* If the trimming actions above left a non-zero size, create an
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