PERFORCE change 90938 for review

[Alan Cox]

http://perforce.freebsd.org/chv.cgi?CH=90938

Change 90938 by alc at alc_home on 2006/02/02 22:09:18

	Release pages from non-VMIO buffers on brelse() with B_RELBUF set.
	(This has nothing to do with superpages.  I was, however, testing it
	on this source tree.)
	
	Submitted by:	tegge

Affected files ...

.. //depot/projects/superpages/src/sys/kern/vfs_bio.c#7 edit

Differences ...

==== //depot/projects/superpages/src/sys/kern/vfs_bio.c#7 (text+ko) ====

@@ -1312,6 +1312,11 @@
 			vfs_vmio_release(bp);
 		}
 
+	} else if ((bp->b_flags & (B_INVAL | B_RELBUF)) != 0) {
+		if (bp->b_bufsize != 0)
+			allocbuf(bp, 0);
+		if (bp->b_vp != NULL)
+			brelvp(bp);
 	}
 			
 	if (BUF_REFCNT(bp) > 1) {