svn commit: r353311 - head/sys/amd64/amd64

[Mark Johnston]

Author: markj
Date: Tue Oct  8 16:42:50 2019
New Revision: 353311
URL: https://svnweb.freebsd.org/changeset/base/353311

Log:
  Simplify pmap_page_array_startup() a bit.
  
  No functional change intended.
  
  Sponsored by:	The FreeBSD Foundation

Modified:
  head/sys/amd64/amd64/pmap.c

Modified: head/sys/amd64/amd64/pmap.c
==============================================================================
--- head/sys/amd64/amd64/pmap.c	Tue Oct  8 15:48:28 2019	(r353310)
+++ head/sys/amd64/amd64/pmap.c	Tue Oct  8 16:42:50 2019	(r353311)
@@ -3947,9 +3947,9 @@ pmap_page_array_startup(long pages)
 
 	vm_page_array_size = pages;
 
-	start = va = VM_MIN_KERNEL_ADDRESS;
-	end = va + pages * sizeof(struct vm_page);
-	while (va < end) {
+	start = VM_MIN_KERNEL_ADDRESS;
+	end = start + pages * sizeof(struct vm_page);
+	for (va = start; va < end; va += NBPDR) {
 		pfn = first_page + (va - start) / sizeof(struct vm_page);
 		domain = _vm_phys_domain(ptoa(pfn));
 		pdpe = pmap_pdpe(kernel_pmap, va);
@@ -3969,7 +3969,6 @@ pmap_page_array_startup(long pages)
 		newpdir = (pd_entry_t)(pa | X86_PG_V | X86_PG_RW | X86_PG_A |
 		    X86_PG_M | PG_PS | pg_g | pg_nx);
 		pde_store(pde, newpdir);
-		va += NBPDR;
 	}
 	vm_page_array = (vm_page_t)start;
 }