src/sys/vm/vm_object.h, branch stable/2.1

$Id$ -> $FreeBSD$

1999-09-05T08:39:22Z

Changed object hash list to be a list rather than a tailq. This saves

1995-05-02T05:57:11Z

space for the hash list buckets and is a little faster. The features of tailq aren't needed. Increased the size of the object hash table to improve performance. In the future, this will be changed so that the table is sized dynamically.

Changes from John Dyson and myself:

1995-04-09T06:03:56Z

Fixed remaining known bugs in the buffer IO and VM system. vfs_bio.c: Fixed some race conditions and locking bugs. Improved performance by removing some (now) unnecessary code and fixing some broken logic. Fixed process accounting of # of FS outputs. Properly handle NFS interrupts (B_EINTR). (various) Replaced calls to clrbuf() with calls to an optimized routine called vfs_bio_clrbuf(). (various FS sync) Sync out modified vnode_pager backed pages. ffs_vnops.c: Do two passes: Sync out file data first, then indirect blocks. vm_fault.c: Fixed deadly embrace caused by acquiring locks in the wrong order. vnode_pager.c: Changed to use buffer I/O system for writing out modified pages. This should fix the problem with the modification date previous not getting updated. Also dramatically simplifies the code. Note that this is going to change in the future and be implemented via VOP_PUTPAGES(). vm_object.c: Fixed a pile of bugs related to cleaning (vnode) objects. The performance of vm_object_page_clean() is terrible when dealing with huge objects, but this will change when we implement a binary tree to keep the object pages sorted. vm_pageout.c: Fixed broken clustering of pageouts. Fixed race conditions and other lockup style bugs in the scanning of pages. Improved performance.

Removed unused fifth argument to vm_object_page_clean(). Fixed bug with

1995-03-22T12:24:11Z

VTEXT not always getting cleared when it is supposed to. Added check to make sure that vm_object_remove() isn't called with a NULL pager or for a pager for an OBJ_INTERNAL object (neither of which will be on the hash list). Clear OBJ_CANPERSIST if we decide to terminate it because of no resident pages.

Added a new boolean argument to vm_object_page_clean that causes it to

1995-03-21T01:11:44Z

only toss out clean pages if TRUE.

Fixed "objde1" hang. It was caused by a "&" where an "&&" belonged in the

1995-03-20T10:14:55Z

expression that decides if a wakeup should occur.

Add and move declarations to fix all of the warnings from `gcc -Wimplicit'

1995-03-16T18:17:34Z

(except in netccitt, netiso and netns) and most of the warnings from `gcc -Wnested-externs'. Fix all the bugs found. There were no serious ones.

Move a kernel inline function inside `#ifdef KERNEL' so that including

1995-03-12T12:42:00Z

doesn't cause warnings about nonexistent functions called by the inline function. Clean up the formatting of the function.

Deleted vm_object_setpager().

1995-03-12T08:05:46Z

Remove a gratutious cast.

1995-03-04T21:14:19Z