Index: ufs_inode.c
===================================================================
RCS file: /home/netbsd/src/sys/ufs/ufs/ufs_inode.c,v
retrieving revision 1.112
diff -p -u -r1.112 ufs_inode.c
--- ufs_inode.c	5 Sep 2020 16:30:13 -0000	1.112
+++ ufs_inode.c	14 Sep 2020 08:03:05 -0000
@@ -260,7 +260,7 @@ ufs_balloc_range(struct vnode *vp, off_t
 
 	/*
 	 * if the allocation succeeded, mark all the pages dirty
-	 * and clear PG_RDONLY on any pages that are now fully backed
+	 * and clear PG_RDONLY on any pages that are now backed
 	 * by disk blocks.  if the allocation failed, we do not invalidate
 	 * the pages since they might have already existed and been dirty,
 	 * in which case we need to keep them around.  if we created the pages,
@@ -274,7 +274,7 @@ ufs_balloc_range(struct vnode *vp, off_t
 		KASSERT((pgs[i]->flags & PG_RELEASED) == 0);
 		if (!error) {
 			if (off <= pagestart + (i << PAGE_SHIFT) &&
-			    pagestart + ((i + 1) << PAGE_SHIFT) <= eob) {
+			    pagestart + (i << PAGE_SHIFT) <= eob) {
 				pgs[i]->flags &= ~PG_RDONLY;
 			}
 			uvm_pagemarkdirty(pgs[i], UVM_PAGE_STATUS_DIRTY);