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From: Alan Cox <alc@FreeBSD.org>
Date: Sun, 10 Mar 2013 21:07:44 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r248140 - in head/sys: amd64/amd64 i386/i386
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Author: alc
Date: Sun Mar 10 21:07:44 2013
New Revision: 248140
URL: http://svnweb.freebsd.org/changeset/base/248140

Log:
  The kernel pmap is statically allocated, so there is really no need to
  explicitly initialize its pm_root field to zero.
  
  Sponsored by:	EMC / Isilon Storage Division

Modified:
  head/sys/amd64/amd64/pmap.c
  head/sys/i386/i386/pmap.c

Modified: head/sys/amd64/amd64/pmap.c
==============================================================================
--- head/sys/amd64/amd64/pmap.c	Sun Mar 10 19:14:09 2013	(r248139)
+++ head/sys/amd64/amd64/pmap.c	Sun Mar 10 21:07:44 2013	(r248140)
@@ -669,7 +669,6 @@ pmap_bootstrap(vm_paddr_t *firstaddr)
 	 */
 	PMAP_LOCK_INIT(kernel_pmap);
 	kernel_pmap->pm_pml4 = (pdp_entry_t *)PHYS_TO_DMAP(KPML4phys);
-	kernel_pmap->pm_root = NULL;
 	CPU_FILL(&kernel_pmap->pm_active);	/* don't allow deactivation */
 	TAILQ_INIT(&kernel_pmap->pm_pvchunk);
 

Modified: head/sys/i386/i386/pmap.c
==============================================================================
--- head/sys/i386/i386/pmap.c	Sun Mar 10 19:14:09 2013	(r248139)
+++ head/sys/i386/i386/pmap.c	Sun Mar 10 21:07:44 2013	(r248140)
@@ -392,7 +392,6 @@ pmap_bootstrap(vm_paddr_t firstaddr)
 #ifdef PAE
 	kernel_pmap->pm_pdpt = (pdpt_entry_t *) (KERNBASE + (u_int)IdlePDPT);
 #endif
-	kernel_pmap->pm_root = NULL;
 	CPU_FILL(&kernel_pmap->pm_active);	/* don't allow deactivation */
 	TAILQ_INIT(&kernel_pmap->pm_pvchunk);