svn commit: r320049 - head/sys/vm

[Alan Cox]

Author: alc
Date: Sat Jun 17 03:05:25 2017
New Revision: 320049
URL: https://svnweb.freebsd.org/changeset/base/320049

Log:
  Pages that are passed to swap_pager_putpages() should already be fully
  dirty.  Assert that they are fully dirty rather than redundantly calling
  vm_page_dirty() on them.
  
  Reviewed by:	kib, markj
  MFC after:	1 week
  X-MFC after:	r319932

Modified:
  head/sys/vm/swap_pager.c

Modified: head/sys/vm/swap_pager.c
==============================================================================
--- head/sys/vm/swap_pager.c	Sat Jun 17 02:58:31 2017	(r320048)
+++ head/sys/vm/swap_pager.c	Sat Jun 17 03:05:25 2017	(r320049)
@@ -1372,7 +1372,7 @@ swap_pager_putpages(vm_object_t object, vm_page_t *m, 
 			    mreq->pindex,
 			    blk + j
 			);
-			vm_page_dirty(mreq);
+			MPASS(mreq->dirty == VM_PAGE_BITS_ALL);
 			mreq->oflags |= VPO_SWAPINPROG;
 			bp->b_pages[j] = mreq;
 		}