freebsd-nq/sys/i386/include
David Greenman 0d94caffca These changes embody the support of the fully coherent merged VM buffer cache,
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
1995-01-09 16:06:02 +00:00
..
pc Removed all patch kit headers, sccsid and rcsid strings, put $Id$ in, some 1993-10-16 14:40:57 +00:00
_limits.h Added $Id$ 1994-08-02 07:55:43 +00:00
ansi.h Added $Id$ 1994-08-02 07:55:43 +00:00
apm_bios.h apm_bios.h: removed the equiv-stuff. Not needed now that the kernel module 1994-10-02 17:31:29 +00:00
apm_segments.h Added $Id$ 1994-10-01 05:13:37 +00:00
asmacros.h Get all the definitions from DEFS.h and not directly from asmacros.h 1994-09-08 12:25:18 +00:00
bootinfo.h Declare the bootinfo structure in the kernel. 1994-11-18 05:26:52 +00:00
clock.h Declare the full uglyness of the interfaces to the clock driver (except 1994-11-05 22:51:17 +00:00
cons.h Added $Id$ 1994-08-02 07:55:43 +00:00
console.h Added more SCO compat ioctl's. 1994-10-17 22:12:06 +00:00
cpu.h Disable CLKF_BASEPRI() again. I forgot to edit an unwanted change out of 1994-12-03 10:18:24 +00:00
cpufunc.h Corrected the list of volatile registers for outsb, outsw, and outsl. 1995-01-04 20:42:25 +00:00
cputypes.h Detect if we're running on a Cyrix 486DLC and enable automatic cache 1994-09-04 19:59:24 +00:00
cronyx.h Cronyx/Sigma sync/async serial driver with PPP support 1994-12-02 23:23:01 +00:00
db_machdep.h Fix the test for the code segment being the usual one. Unusual code 1994-10-19 21:13:51 +00:00
devconf.h Submitted by: Wolfgang Stanglmeier <wolf@dentaro.GUN.de> 1994-11-02 23:44:11 +00:00
dkio.h Quote the first arg to _IO(). Not quoting it didn't matter because 1994-09-08 12:26:07 +00:00
eflags.h Removed all patch kit headers, sccsid and rcsid strings, put $Id$ in, some 1993-10-16 14:40:57 +00:00
endian.h Change "asm" to "__asm" - makes it possible to compile code with 1994-09-10 20:03:14 +00:00
exec.h Shuffled macros and definitions around to facilitate architecture 1994-09-24 21:37:01 +00:00
float.h Made all header files idempotent and moved incorrect common data from 1993-11-07 17:43:17 +00:00
floatingpoint.h Don't provide bogus source operands in some asms. This probably shouldn't 1994-09-20 22:26:37 +00:00
frame.h The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch. 1994-05-25 09:21:21 +00:00
gsc.h Gunther Schadow <gusw@fub46.zedat.fu-berlin.de>'s 1995-01-07 14:52:08 +00:00
ieeefp.h Delete redundant #ifdef __i386__, be consistent about idempotency 1994-08-05 14:36:04 +00:00
ioctl_ctx.h Added Cortex-I Frame Grabber by Paul S. LaFollette, Jr. 1994-10-01 17:59:42 +00:00
ioctl_fd.h Included the command definition for FD_DEBUG. 1994-10-30 19:17:39 +00:00
ioctl_pc.h
ipl.h Added $Id$ 1994-08-02 07:55:43 +00:00
limits.h Added $Id$ 1994-08-02 07:55:43 +00:00
lpt.h Added $Id$ 1994-08-02 07:55:43 +00:00
mouse.h Added the psm driver from 1.1.5. 1994-09-09 11:27:50 +00:00
mtpr.h Removed all patch kit headers, sccsid and rcsid strings, put $Id$ in, some 1993-10-16 14:40:57 +00:00
npx.h Replace sv_ex_tw by padding (it is no longer used; the tag word in sv_env 1995-01-03 03:57:46 +00:00
param.h Replace unsigned' by u_int' so that it is not necessary to include 1994-09-18 22:05:22 +00:00
pcaudioio.h Changed header sligthly. 1994-09-29 08:31:39 +00:00
pcb.h i386/exception.s, 1994-12-03 10:03:19 +00:00
pio.h Made all header files idempotent and moved incorrect common data from 1993-11-07 17:43:17 +00:00
pmap.h These changes embody the support of the fully coherent merged VM buffer cache, 1995-01-09 16:06:02 +00:00
proc.h The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch. 1994-05-25 09:21:21 +00:00
profile.h Added MCOUNT_ENTER and MCOUNT_EXIT macros to profile.h 1994-09-15 16:27:14 +00:00
psl.h Add back in CPU detection copde from 1.1.5. As an added bonus, the 1994-08-10 03:51:18 +00:00
pte.h Improved some comments. 1994-09-04 23:10:27 +00:00
ptrace.h Added $Id$ 1994-08-02 07:55:43 +00:00
reg.h apm_bios.h: removed the equiv-stuff. Not needed now that the kernel module 1994-10-02 17:31:29 +00:00
reloc.h Made idempotent. 1994-08-21 04:55:31 +00:00
segments.h Make gdt_segs[] public again for APM. 1994-11-15 14:12:55 +00:00
signal.h Made idempotent. 1994-08-21 04:55:31 +00:00
soundcard.h Remove extra idempotency ifdef and uniformize the other one. 1994-11-14 14:13:13 +00:00
speaker.h Added $Id$ 1994-08-02 07:55:43 +00:00
specialreg.h Improved some comments. 1994-09-04 23:10:27 +00:00
spl.h spl.h: 1994-12-30 12:42:15 +00:00
stdarg.h Added $Id$ 1994-08-02 07:55:43 +00:00
sysarch.h Added $Id$ 1994-08-02 07:55:43 +00:00
trap.h Made all header files idempotent and moved incorrect common data from 1993-11-07 17:43:17 +00:00
tss.h Fixed comments that start within a comment, so code compiles cleanly with 1993-11-17 23:25:28 +00:00
types.h Added $Id$ 1994-08-02 07:55:43 +00:00
ultrasound.h Added $Id$ 1994-08-02 07:55:43 +00:00
varargs.h Added $Id$ 1994-08-02 07:55:43 +00:00
vmparam.h These changes embody the support of the fully coherent merged VM buffer cache, 1995-01-09 16:06:02 +00:00