Eliminated many redundant vm_map_lookup operations for vm_mmap.

Speed up for vfs_bio -- addition of a routine bqrelse to greatly diminish
	overhead for merged cache.
Efficiency improvement for vfs_cluster.  It used to do alot of redundant
	calls to cluster_rbuild.
Correct the ordering for vrele of .text and release of credentials.
Use the selective tlb update for 486/586/P6.
Numerous fixes to the size of objects allocated for files.  Additionally,
	fixes in the various pagers.
Fixes for proper positioning of vnode_pager_setsize in msdosfs and ext2fs.
Fixes in the swap pager for exhausted resources.  The pageout code
	will not as readily thrash.
Change the page queue flags (PG_ACTIVE, PG_INACTIVE, PG_FREE, PG_CACHE) into
	page queue indices (PQ_ACTIVE, PQ_INACTIVE, PQ_FREE, PQ_CACHE),
	thereby improving efficiency of several routines.
Eliminate even more unnecessary vm_page_protect operations.
Significantly speed up process forks.
Make vm_object_page_clean more efficient, thereby eliminating the pause
	that happens every 30seconds.
Make sequential clustered writes B_ASYNC instead of B_DELWRI even in the
	case of filesystems mounted async.
Fix a panic with busy pages when write clustering is done for non-VMIO
	buffers.

1 files changed, 3 insertions, 3 deletions

diff --git a/sys/gnu/fs/ext2fs/ext2_bmap.c b/sys/gnu/fs/ext2fs/ext2_bmap.c
index c8b3cd4..2b2531d 100644
--- a/sys/gnu/fs/ext2fs/ext2_bmap.c
+++ b/sys/gnu/fs/ext2fs/ext2_bmap.c
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)ufs_bmap.c	8.6 (Berkeley) 1/21/94
- * $Id: ufs_bmap.c,v 1.9 1995/09/04 00:21:09 dyson Exp $
+ * $Id: ufs_bmap.c,v 1.10 1995/11/05 23:07:37 dyson Exp $
  */
 
 #include <sys/param.h>
@@ -188,7 +188,7 @@ ufs_bmaparray(vp, bn, bnp, ap, nump, runp, runb)
 		 * or we have a disk address for it, go fetch it.
 		 */
 		if (bp)
-			brelse(bp);
+			bqrelse(bp);
 
 		xap->in_exists = 1;
 		bp = getblk(vp, metalbn, mp->mnt_stat.f_iosize, 0, 0);
@@ -226,7 +226,7 @@ ufs_bmaparray(vp, bn, bnp, ap, nump, runp, runb)
 		}
 	}
 	if (bp)
-		brelse(bp);
+		bqrelse(bp);
 
 	daddr = blkptrtodb(ump, daddr);
 	*bnp = daddr == 0 ? -1 : daddr;