minor optimization

SCCS-vsn: sys/kern/vfs_bio.c 7.20
SCCS-vsn: sys/kern/vfs_cluster.c 7.20

diff --git a/usr/src/sys/kern/vfs_bio.c b/usr/src/sys/kern/vfs_bio.c
index 8f13f47..eea22b0 100644 (file)
--- a/usr/src/sys/kern/vfs_bio.c
+++ b/usr/src/sys/kern/vfs_bio.c
@@ -14,7 +14,7 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *

- *     @(#)vfs_bio.c   7.19 (Berkeley) %G%
+ *     @(#)vfs_bio.c   7.20 (Berkeley) %G%

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


@@ -110,7 +110,7 @@ breada(vp, blkno, size, rablkno, rabsize, cred, bpp)
         * If there's a read-ahead block, start i/o
         * on it also (as above).
         */
         * If there's a read-ahead block, start i/o
         * on it also (as above).
         */

-       if (rablkno && !incore(vp, rablkno)) {
+       if (!incore(vp, rablkno)) {

                rabp = getblk(vp, rablkno, rabsize);
 #endif SECSIZE
                if (rabp->b_flags & (B_DONE|B_DELWRI)) {
                rabp = getblk(vp, rablkno, rabsize);
 #endif SECSIZE
                if (rabp->b_flags & (B_DONE|B_DELWRI)) {

diff --git a/usr/src/sys/kern/vfs_cluster.c b/usr/src/sys/kern/vfs_cluster.c
index 81d4e44..be0f6c0 100644 (file)
--- a/usr/src/sys/kern/vfs_cluster.c
+++ b/usr/src/sys/kern/vfs_cluster.c
@@ -14,7 +14,7 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *

- *     @(#)vfs_cluster.c       7.19 (Berkeley) %G%
+ *     @(#)vfs_cluster.c       7.20 (Berkeley) %G%

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


@@ -110,7 +110,7 @@ breada(vp, blkno, size, rablkno, rabsize, cred, bpp)
         * If there's a read-ahead block, start i/o
         * on it also (as above).
         */
         * If there's a read-ahead block, start i/o
         * on it also (as above).
         */

-       if (rablkno && !incore(vp, rablkno)) {
+       if (!incore(vp, rablkno)) {

                rabp = getblk(vp, rablkno, rabsize);
 #endif SECSIZE
                if (rabp->b_flags & (B_DONE|B_DELWRI)) {
                rabp = getblk(vp, rablkno, rabsize);
 #endif SECSIZE
                if (rabp->b_flags & (B_DONE|B_DELWRI)) {