svn commit: r342620 - stable/12/sys/kern

[Konstantin Belousov]

Author: kib
Date: Sun Dec 30 15:17:00 2018
New Revision: 342620
URL: https://svnweb.freebsd.org/changeset/base/342620

Log:
  MFC r342380:
  Properly test for vmio buffer in bnoreuselist().

Modified:
  stable/12/sys/kern/vfs_subr.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/kern/vfs_subr.c
==============================================================================
--- stable/12/sys/kern/vfs_subr.c	Sun Dec 30 09:35:47 2018	(r342619)
+++ stable/12/sys/kern/vfs_subr.c	Sun Dec 30 15:17:00 2018	(r342620)
@@ -1840,7 +1840,7 @@ again:
 		 * reused.  Dirty buffers will have the hint applied once
 		 * they've been written.
 		 */
-		if (bp->b_vp->v_object != NULL)
+		if ((bp->b_flags & B_VMIO) != 0)
 			bp->b_flags |= B_NOREUSE;
 		brelse(bp);
 		BO_RLOCK(bo);