src-test2/sys/vm/vm_prot.h, branch master

useracc() the prequel:

1999-10-29T18:09:36Z

Merge the contents (less some trivial bordering the silly comments) of and into . This puts the #defines for the vm_inherit_t and vm_prot_t types next to their typedefs. This paves the road for the commit to follow shortly: change useracc() to use VM_PROT_{READ|WRITE} rather than B_{READ|WRITE} as argument.

$Id$ -> $FreeBSD$

1999-08-28T01:08:13Z

Fix the gdb executable modify problem. Thanks to the detective work

1997-04-06T02:29:45Z

by Alan Cox , and his description of the problem. The bug was primarily in procfs_mem, but the mistake likely happened due to the lack of vm system support for the operation. I added better support for selective marking of page dirty flags so that vm_map_pageable(wiring) will not cause this problem again. The code in procfs_mem is now less bogus (but maybe still a little so.)

Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not

1997-02-22T09:48:43Z

ready for it yet.

Make the long-awaited change from $Id$ to $FreeBSD$

1997-01-14T07:20:47Z

This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.

Untangled the vm.h include file spaghetti.

1995-12-07T12:48:31Z

These changes embody the support of the fully coherent merged VM buffer cache,

1995-01-09T16:06:02Z

much higher filesystem I/O performance, and much better paging performance. It represents the culmination of over 6 months of R&D. The majority of the merged VM/cache work is by John Dyson. The following highlights the most significant changes. Additionally, there are (mostly minor) changes to the various filesystem modules (nfs, msdosfs, etc) to support the new VM/buffer scheme. vfs_bio.c: Significant rewrite of most of vfs_bio to support the merged VM buffer cache scheme. The scheme is almost fully compatible with the old filesystem interface. Significant improvement in the number of opportunities for write clustering. vfs_cluster.c, vfs_subr.c Upgrade and performance enhancements in vfs layer code to support merged VM/buffer cache. Fixup of vfs_cluster to eliminate the bogus pagemove stuff. vm_object.c: Yet more improvements in the collapse code. Elimination of some windows that can cause list corruption. vm_pageout.c: Fixed it, it really works better now. Somehow in 2.0, some "enhancements" broke the code. This code has been reworked from the ground-up. vm_fault.c, vm_page.c, pmap.c, vm_object.c Support for small-block filesystems with merged VM/buffer cache scheme. pmap.c vm_map.c Dynamic kernel VM size, now we dont have to pre-allocate excessive numbers of kernel PTs. vm_glue.c Much simpler and more effective swapping code. No more gratuitous swapping. proc.h Fixed the problem that the p_lock flag was not being cleared on a fork. swap_pager.c, vnode_pager.c Removal of old vfs_bio cruft to support the past pseudo-coherency. Now the code doesn't need it anymore. machdep.c Changes to better support the parameter values for the merged VM/buffer cache scheme. machdep.c, kern_exec.c, vm_glue.c Implemented a seperate submap for temporary exec string space and another one to contain process upages. This eliminates all map fragmentation problems that previously existed. ffs_inode.c, ufs_inode.c, ufs_readwrite.c Changes for merged VM/buffer cache. Add "bypass" support for sneaking in on busy buffers. Submitted by: John Dyson and David Greenman

Added $Id$

1994-08-02T07:55:43Z

The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.

1994-05-25T09:21:21Z

Reviewed by: Rodney W. Grimes Submitted by: John Dyson and David Greenman

BSD 4.4 Lite Kernel Sources

1994-05-24T10:09:53Z