svn commit: r234771 - in stable/9/sys: i386/conf kern vm

[Alan Cox]

Author: alc
Date: Sat Apr 28 20:34:14 2012
New Revision: 234771
URL: http://svn.freebsd.org/changeset/base/234771

Log:
  MFC r234038
    If a page belonging a reservation is cached, then mark the reservation so
    that it will be freed to the cache pool rather than the default pool.
    Otherwise, the cached pages within the reservation may be recycled sooner
    than necessary.

Modified:
  stable/9/sys/vm/vm_reserv.c
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/amd64/include/xen/   (props changed)
  stable/9/sys/boot/   (props changed)
  stable/9/sys/boot/i386/efi/   (props changed)
  stable/9/sys/boot/ia64/efi/   (props changed)
  stable/9/sys/boot/ia64/ski/   (props changed)
  stable/9/sys/boot/powerpc/boot1.chrp/   (props changed)
  stable/9/sys/boot/powerpc/ofw/   (props changed)
  stable/9/sys/cddl/contrib/opensolaris/   (props changed)
  stable/9/sys/conf/   (props changed)
  stable/9/sys/contrib/dev/acpica/   (props changed)
  stable/9/sys/contrib/octeon-sdk/   (props changed)
  stable/9/sys/contrib/pf/   (props changed)
  stable/9/sys/contrib/x86emu/   (props changed)
  stable/9/sys/fs/   (props changed)
  stable/9/sys/fs/ntfs/   (props changed)
  stable/9/sys/i386/conf/XENHVM   (props changed)
  stable/9/sys/kern/subr_witness.c   (props changed)

Modified: stable/9/sys/vm/vm_reserv.c
==============================================================================
--- stable/9/sys/vm/vm_reserv.c	Sat Apr 28 20:23:13 2012	(r234770)
+++ stable/9/sys/vm/vm_reserv.c	Sat Apr 28 20:34:14 2012	(r234771)
@@ -464,11 +464,13 @@ vm_reserv_free_page(vm_page_t m)
 
 	mtx_assert(&vm_page_queue_free_mtx, MA_OWNED);
 	rv = vm_reserv_from_page(m);
-	if (rv->object != NULL) {
-		vm_reserv_depopulate(rv);
-		return (TRUE);
-	}
-	return (FALSE);
+	if (rv->object == NULL)
+		return (FALSE);
+	if ((m->flags & PG_CACHED) != 0 && m->pool != VM_FREEPOOL_CACHE)
+		vm_phys_set_pool(VM_FREEPOOL_CACHE, rv->pages,
+		    VM_LEVEL_0_ORDER);
+	vm_reserv_depopulate(rv);
+	return (TRUE);
 }
 
 /*