Bounce buffers. From John Dyson with help from me.

[unix-history] / sys / kern / vfs__bio.c

diff --git a/sys/kern/vfs__bio.c b/sys/kern/vfs__bio.c
index f64230f..b26af6f 100644 (file)
--- a/sys/kern/vfs__bio.c
+++ b/sys/kern/vfs__bio.c
@@ -45,7 +45,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *

- *     $Id: vfs__bio.c,v 1.15 1994/01/31 05:57:45 davidg Exp $
+ *     $Id: vfs__bio.c,v 1.16 1994/03/19 22:19:11 wollman Exp $

  */
 
 #include "param.h"
  */
 
 #include "param.h"


@@ -593,6 +593,10 @@ biowait(register struct buf *bp)
 void
 biodone(register struct buf *bp)
 {
 void
 biodone(register struct buf *bp)
 {

+#ifndef NOBOUNCE
+       if (bp->b_flags & B_BOUNCE)
+               vm_bounce_free(bp);
+#endif

        bp->b_flags |= B_DONE;
 
        if ((bp->b_flags & B_READ) == 0)  {
        bp->b_flags |= B_DONE;
 
        if ((bp->b_flags & B_READ) == 0)  {