diff options
| author | dyson <dyson@FreeBSD.org> | 1996-01-19 04:00:31 +0000 |
|---|---|---|
| committer | dyson <dyson@FreeBSD.org> | 1996-01-19 04:00:31 +0000 |
| commit | 8fc8a772af22f6e03233d248fa2dbd9b5c2bdd7d (patch) | |
| tree | 3c31fd95ea745005a9cd6733db5a16f31bd828a6 /sys/vm/vnode_pager.c | |
| parent | 6755beedbf0ddaa9e66e91c8e74f620ede6bfad5 (diff) | |
| download | FreeBSD-src-8fc8a772af22f6e03233d248fa2dbd9b5c2bdd7d.zip FreeBSD-src-8fc8a772af22f6e03233d248fa2dbd9b5c2bdd7d.tar.gz | |
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.
Diffstat (limited to 'sys/vm/vnode_pager.c')
| -rw-r--r-- | sys/vm/vnode_pager.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/vm/vnode_pager.c b/sys/vm/vnode_pager.c index 873b20ce..4edbd35 100644 --- a/sys/vm/vnode_pager.c +++ b/sys/vm/vnode_pager.c @@ -38,7 +38,7 @@ * SUCH DAMAGE. * * from: @(#)vnode_pager.c 7.5 (Berkeley) 4/20/91 - * $Id: vnode_pager.c,v 1.56 1995/12/14 09:55:14 phk Exp $ + * $Id: vnode_pager.c,v 1.57 1995/12/17 23:29:56 dyson Exp $ */ /* @@ -133,7 +133,8 @@ vnode_pager_alloc(handle, size, prot, offset) * If the object is being terminated, wait for it to * go away. */ - while (((object = vp->v_object) != NULL) && (object->flags & OBJ_DEAD)) { + while (((object = vp->v_object) != NULL) && + (object->flags & OBJ_DEAD)) { tsleep(object, PVM, "vadead", 0); } |
