[PATCH] Big cleanup job on memory device

[Peter Pentchev]

On Wed, Jul 21, 2004 at 08:52:55PM +0100, Mark Murray wrote:
> Hey all
> 
> Please have a look at http://people.freebsd.org/~markm/mem.diff
> 
> It is a big cleanup of sys/${ARCH}/${ARCH}/mem.c, and it turns
> multiple copies of MD code into MI code with the MD bits broken
> out. Lots of garbage is retired.
> 
> It also turns the memory and io devices into loadable modules,
> but going this route is probably for the braver folks amongst us.
> 
> I wrote 99% of this code more than a year ago, and over time, its
> been tested on i386, alpha and sparc64.

Works for me; it just survived a buildworld on my somewhat loaded
workstation (MySQL, PostgreSQL, X and all).

It seems that you would need something like the attached patch to
actually build LINT, though.  And of course, a very strongly-worded
UPDATING entry about including the 'null' and 'mem' devices in
the kernel config, but I guess that's already on your list :)

G'luck,
Peter

-- 
Peter Pentchev	roam at ringlet.net    roam at cnsys.bg    roam at FreeBSD.org
PGP key:	http://people.FreeBSD.org/~roam/roam.key.asc
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If wishes were fishes, the antecedent of this conditional would be true.
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Index: sys/conf/NOTES
===================================================================
RCS file: /home/ncvs/src/sys/conf/NOTES,v
retrieving revision 1.1249
diff -u -r1.1249 NOTES
--- sys/conf/NOTES	20 Jul 2004 12:42:54 -0000	1.1249
+++ sys/conf/NOTES	22 Jul 2004 12:45:04 -0000
@@ -831,6 +831,12 @@
 # Cryptographically secure random number generator; /dev/[u]random
 device		random
 
+# The bit-bucket; /dev/null
+device		null
+
+# The system memory device; /dev/mem
+device		mem
+
 # Optional character code conversion support with LIBICONV.
 # Each option requires their base file system and LIBICONV.
 options 	CD9660_ICONV
Index: sys/amd64/conf/NOTES
===================================================================
RCS file: /home/ncvs/src/sys/amd64/conf/NOTES,v
retrieving revision 1.14
diff -u -r1.14 NOTES
--- sys/amd64/conf/NOTES	17 May 2004 22:13:14 -0000	1.14
+++ sys/amd64/conf/NOTES	22 Jul 2004 12:45:43 -0000
@@ -517,3 +517,7 @@
 options 	VM_KMEM_SIZE
 options 	VM_KMEM_SIZE_MAX
 options 	VM_KMEM_SIZE_SCALE
+
+
+# The I/O device
+device		io
Index: sys/i386/conf/NOTES
===================================================================
RCS file: /home/ncvs/src/sys/i386/conf/NOTES,v
retrieving revision 1.1166
diff -u -r1.1166 NOTES
--- sys/i386/conf/NOTES	21 Jul 2004 14:47:54 -0000	1.1166
+++ sys/i386/conf/NOTES	22 Jul 2004 12:45:25 -0000
@@ -1053,3 +1053,7 @@
 options 	VM_KMEM_SIZE
 options 	VM_KMEM_SIZE_MAX
 options 	VM_KMEM_SIZE_SCALE
+
+
+# The I/O device
+device		io
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