svn commit: r304229 - head/sys/ufs/ffs

[Konstantin Belousov]

Author: kib
Date: Tue Aug 16 17:05:15 2016
New Revision: 304229
URL: https://svnweb.freebsd.org/changeset/base/304229

Log:
  When looking up dandling buffers for unwing after failing block
  allocation in UFS_BALLOC(), there is no need to map them.
  
  Reviewed by:	mckusick
  Sponsored by:	The FreeBSD Foundation
  MFC after:	1 week

Modified:
  head/sys/ufs/ffs/ffs_balloc.c

Modified: head/sys/ufs/ffs/ffs_balloc.c
==============================================================================
--- head/sys/ufs/ffs/ffs_balloc.c	Tue Aug 16 16:50:48 2016	(r304228)
+++ head/sys/ufs/ffs/ffs_balloc.c	Tue Aug 16 17:05:15 2016	(r304229)
@@ -484,7 +484,8 @@ fail:
 		 * We shall not leave the freed blocks on the vnode
 		 * buffer object lists.
 		 */
-		bp = getblk(vp, *lbns_remfree, fs->fs_bsize, 0, 0, GB_NOCREAT);
+		bp = getblk(vp, *lbns_remfree, fs->fs_bsize, 0, 0,
+		    GB_NOCREAT | GB_UNMAPPED);
 		if (bp != NULL) {
 			bp->b_flags |= (B_INVAL | B_RELBUF);
 			bp->b_flags &= ~B_ASYNC;
@@ -1061,7 +1062,8 @@ fail:
 		 * We shall not leave the freed blocks on the vnode
 		 * buffer object lists.
 		 */
-		bp = getblk(vp, *lbns_remfree, fs->fs_bsize, 0, 0, GB_NOCREAT);
+		bp = getblk(vp, *lbns_remfree, fs->fs_bsize, 0, 0,
+		    GB_NOCREAT | GB_UNMAPPED);
 		if (bp != NULL) {
 			bp->b_flags |= (B_INVAL | B_RELBUF);
 			bp->b_flags &= ~B_ASYNC;