svn commit: r350092 - projects/fuse2/sys/vm

[Alan Somers]

Author: asomers
Date: Wed Jul 17 19:39:08 2019
New Revision: 350092
URL: https://svnweb.freebsd.org/changeset/base/350092

Log:
  Revert r346608
  
  That change was intended to be cosmetic, but it inadvertenly caused
  vnode_pager_setsize to discard cached indirect blocks and extended
  attributes on UFS during truncation.  The reason is because those blocks
  have negative LBNs, which get sign-cast to positive VM indexes.
  
  Reported by:	kib
  Sponsored by:	The FreeBSD Foundation

Modified:
  projects/fuse2/sys/vm/vnode_pager.c

Modified: projects/fuse2/sys/vm/vnode_pager.c
==============================================================================
--- projects/fuse2/sys/vm/vnode_pager.c	Wed Jul 17 19:29:55 2019	(r350091)
+++ projects/fuse2/sys/vm/vnode_pager.c	Wed Jul 17 19:39:08 2019	(r350092)
@@ -464,7 +464,8 @@ vnode_pager_setsize(struct vnode *vp, vm_ooffset_t nsi
 		 * File has shrunk. Toss any cached pages beyond the new EOF.
 		 */
 		if (nobjsize < object->size)
-			vm_object_page_remove(object, nobjsize, 0, 0);
+			vm_object_page_remove(object, nobjsize, object->size,
+			    0);
 		/*
 		 * this gets rid of garbage at the end of a page that is now
 		 * only partially backed by the vnode.