Commit Graph

262 Commits

Author SHA1 Message Date
Bruce Evans
0ff89d5b03 Moved the declaration of vm_object_t from <vm/vm.h> to <sys/types.h>
(if KERNEL is defined).  This allows removing the #includes of vm
stuff in vnode_if.h, which will speed up the compilation of LINT by
about 5%.
1995-12-05 20:54:42 +00:00
Poul-Henning Kamp
946bb7a268 A major sweep over the sysctl stuff.
Move a lot of variables home to their own code (In good time before xmas :-)

Introduce the string descrition of format.

Add a couple more functions to poke into these marvels, while I try to
decide what the correct interface should look like.

Next is adding vars on the fly, and sysctl looking at them too.

Removed a tine bit of defunct and #ifdefed notused code in swapgeneric.
1995-12-04 16:48:58 +00:00
Bruce Evans
f31d402c5a Fixed the type mismatch in check for the bogus mmap function `nullop'.
The test should never succeed and should go away.  Temporarily print
a warning if it does succeed.
1995-12-03 18:59:55 +00:00
Bruce Evans
cac597e4c0 Completed function declarations and/or added prototypes.
Staticized some functions.

__purified some functions.  Some functions were bogusly declared as
returning `const'.  This hasn't done anything since gcc-2.5.  For
later versions of gcc, the equivalent is __attribute__((const)) at
the end of function declarations.
1995-12-03 12:18:39 +00:00
Bruce Evans
d841aaa740 Finished (?) cleaning up sysinit stuff. 1995-12-02 17:11:20 +00:00
Julian Elischer
7198bf4725 If you're going to mechanically replicate something in 50 files
it's best to not have a (compiles cleanly) typo in it! (sigh)
1995-11-29 14:41:20 +00:00
Julian Elischer
53ac6efbd8 OK, that's it..
That's EVERY SINGLE driver that has an entry in conf.c..
my next trick will be to define cdevsw[] and bdevsw[]
as empty arrays and remove all those DAMNED defines as well..

Each of these drivers has a SYSINIT linker set entry
that comes in very early.. and asks teh driver to add it's own
entry to the two devsw[] tables.

some slight reworking of the commits from yesterday (added the SYSINIT
stuff and some usually wrong but token DEVFS entries to all these
devices.

BTW does anyone know where the 'ata' entries in conf.c actually reside?
seems we don't actually have a 'ataopen() etc...

If you want to add a new device in conf.c
please  make sure I know
so I can keep it up to date too..

as before, this is all dependent on #if defined(JREMOD)
(and #ifdef DEVFS in parts)
1995-11-29 10:49:16 +00:00
Bruce Evans
512fef80a9 Completed function declarations and/or added prototypes. 1995-11-21 12:55:26 +00:00
Poul-Henning Kamp
3af768903d Remove unused vars & funcs, make things static, protoize a little bit. 1995-11-20 12:20:02 +00:00
Bruce Evans
ff98689d2d Fixed recent staticizations. Some protypes for static functions were
left in headers and not staticized.
1995-11-16 09:51:22 +00:00
Poul-Henning Kamp
f5a1271110 staticize. 1995-11-14 20:53:20 +00:00
Poul-Henning Kamp
a9ad941c7a Move all the VM sysctl stuff home where it belongs. 1995-11-14 09:29:34 +00:00
David Greenman
f81b859263 Fixed up a comment and removed some #if 0'd code. 1995-11-13 10:53:38 +00:00
David Greenman
bea41bcf3a Moved vm_map_lock call to inside the splhigh protection in vm_map_find().
This closes a probably rare but nonetheless real window that would result
in a process hanging or the system panicing.

Reviewed by:	dyson, davidg
Submitted by:	kato@eclogite.eps.nagoya-u.ac.jp (KATO Takenori)
1995-11-12 08:58:58 +00:00
Bruce Evans
d2d3e8751c Included <sys/sysproto.h> to get central declarations for syscall args
structs and prototypes for syscalls.

Ifdefed duplicated decentralized declarations of args structs.  It's
convenient to have this visible but they are hard to maintain.  Some
are already different from the central declarations.  4.4lite2 puts
them in comments in the function headers but I wanted to avoid the
large changes for that.
1995-11-12 06:43:28 +00:00
Bruce Evans
9ed1bde79c Fixed type of obreak(). The args struct member name conflicted with
the (better) machine generated one in <sys/sysproto.h>.
1995-11-11 06:40:35 +00:00
David Greenman
42e9339d38 Initialize lock struct entries explicitly rather than calling bzero(). 1995-11-06 08:44:15 +00:00
Bruce Evans
8b25681eb5 Replaced bogus macros for dummy devswitch entries by functions.
These functions went away:

	enosys (hasn't been used for some time)
	enxio
	enodev
	enoioctl (was used only once, actually for a vop)

if_tun.c:
Continued cleaning up...

conf.h:
Probably fixed the type of d_reset_t.  It is hard to tell the correct
type because there are no non-dummy device reset functions.

Removed last vestige of ambiguous sleep message strings.
1995-11-06 00:36:19 +00:00
John Dyson
aef922f514 Greatly simplify the msync code. Eliminate complications in vm_pageout
for msyncing.  Remove a bug that manifests itself primarily on NFS
(the dirty range on the buffers is not set on msync.)
1995-11-05 20:46:03 +00:00
David Greenman
23922ccaca Move page fixups (pmap_clear_modify, etc) that happen after paging input
completes out of vm_fault and into the pagers. This get rid of some
redundancy and improves the architecture.

Reviewed by:	John Dyson <dyson>
1995-11-02 06:42:47 +00:00
Bruce Evans
0b8253a746 Don't pass an extra trailing arg to some functions.
Added the prototypes that found this bug.
1995-10-30 17:56:30 +00:00
John Dyson
a91c5a7ecd Get rid of machine-dependent NBPG and replace with PAGE_SIZE. 1995-10-23 05:35:48 +00:00
John Dyson
d559b36913 Remove of now unused PG_COPYONWRITE. 1995-10-23 04:29:39 +00:00
John Dyson
e17bed1226 First phase of removing the PG_COPYONWRITE flag, and an architectural
cleanup of mapping files.
1995-10-23 03:49:43 +00:00
John Dyson
2c4488fce3 Finalize GETPAGES layering scheme. Move the device GETPAGES
interface into specfs code.  No need at this point to modify the
PUTPAGES stuff except in the layered-type (NULL/UNION) filesystems.
1995-10-23 02:23:29 +00:00
John Dyson
02c04a2f6c Implement mincore system call. 1995-10-21 17:42:28 +00:00
David Greenman
eed2d59b25 Fix initialization of "bsize" in vnode_pager_haspage(). It must happen
after the check for the mount point still existing or else the system
will panic if someone forcibly unmounted the filesystem.
1995-10-19 21:35:03 +00:00
John Dyson
0bc3a91127 Remove an unnecessary tsleep in the swapin code. This tsleep
can defer swapping in processes and is just not the right thing to do.
1995-10-16 05:45:49 +00:00
David Greenman
cd41fc123e Fix argument passing to the "freeer" routine. Added some prototypes. (bde)
Moved extern declaration of swap_pager_full into swap_pager.h and out of
the various files that reference it. (davidg)

Submitted by:	bde & davidg
1995-10-07 19:02:56 +00:00
Poul-Henning Kamp
a5eb0e27e4 Avoid a 64bit divide. 1995-10-06 09:42:11 +00:00
Bruce Evans
f2caf6f548 Fix pollution of application namespace by declarations of kernel
functions.  The application header <sys/user.h> includes <vm/vm.h>
which includes <vm/lock.h>...

vm.h:
Don't include <machine/cpufunc.h>.  It is already included by
<sys/systm.h> in the kernel and isn't designed to be included by
applications (the 2.1 version causes a syntax error in C++ and the
current version has initializers that are invalid in strict C++).

lock.h:
Only declare kernel functions if KERNEL is defined.
1995-10-05 01:11:48 +00:00
John Dyson
0e27a03ffb Perform more checking for proper loading of the UPAGES when a process
is swapped in.  Also, remove unnecessary map locking/unlocking during
selection of processes to be swapped out.

This code might afford proper panics as opposed to spontaneous reboots
on certain systems.  This should allow us to debug these problems better.
1995-09-24 19:51:50 +00:00
John Dyson
22ba64e870 Significantly simplify the fault clustering code. After some analysis by
David Greenman, it has been determined that the more sophisticated code
only made a very minor difference in fault performance.  Therefore, this
code eliminates some of the complication of the fault code, decreasing
the amount of CPU used to scan shadow chains.
1995-09-24 19:47:58 +00:00
David Greenman
2f82e60467 Check that the swap block is valid before including it in a cluster.
Submitted by:	John Dyson
1995-09-24 04:40:19 +00:00
David Greenman
c87ad37e61 Check the return value from vm_map_pageable() when mapping the process's
UPAGES and associated page table page. Panic on error. This is less than
optimial and will be fixed in the future, but is better than the old
behavior of panicing with a "kernel page directory invalid" in pmap_enter.
1995-09-17 01:46:03 +00:00
John Dyson
21bf390418 Fixed a typo in vm_fault_additional_pages. 1995-09-14 13:42:52 +00:00
John Dyson
6eab77f210 Fix really bogus casting of a block number to a long. Also change the
comparison from a "< 0" to "== -1" like it should be.
1995-09-12 14:42:43 +00:00
John Dyson
894048d71c Make sure that the prezero flag is cleared when needed. 1995-09-11 00:47:17 +00:00
John Dyson
b1fc01b7da Fix an error that can cause attempted reading beyond the end of file. 1995-09-11 00:46:19 +00:00
John Dyson
ccbb2f7226 Code cleanup and minor performance improvement in the faultin cluster
code.
1995-09-11 00:45:15 +00:00
David Greenman
4590fd3a2a Fixed init functions argument type - caddr_t -> void *. Fixed a couple of
compiler warnings.
1995-09-09 18:10:37 +00:00
John Dyson
ca56715fd8 Fixed a sign reversal problem -- might have cause some Sig-11s that
people have been seeing.
1995-09-06 07:08:45 +00:00
John Dyson
ced399ee65 Minor performance improvements, additional prototype for additional
exported symbol.
1995-09-06 05:37:43 +00:00
John Dyson
170db9c63a Allow the fault code to use additional clustering info from both
bmap and the swap pager.  Improved fault clustering performance.
1995-09-04 04:44:26 +00:00
John Dyson
c83ebe7781 Added VOP_GETPAGES/VOP_PUTPAGES and also the "backwards" block count
for VOP_BMAP.  Updated affected filesystems...
1995-09-04 00:21:16 +00:00
John Dyson
f70f05f238 Machine independent changes to support pre-zeroed free pages. This
significantly improves demand-zero performance.
1995-09-03 20:40:43 +00:00
John Dyson
10ad4d483c Added prototype for new routine "vm_page_set_validclean" and initial
declarations for the prezeroed pages mechanism.
1995-09-03 20:11:26 +00:00
John Dyson
4589a4b5dc New subroutine "vm_page_set_validclean" for a vfs_bio improvement. 1995-09-03 19:57:25 +00:00
Julian Elischer
2b14f991e6 Reviewed by: julian with quick glances by bruce and others
Submitted by:	terry (terry lambert)
This is  a composite of 3 patch sets submitted by terry.
they are:
New low-level init code that supports loadbal modules better
some cleanups in the namei code to help terry in 16-bit character support
some changes to the mount-root code to make it a little more
modular..

NOTE: mounting root off cdrom or NFS MIGHT be broken as I haven't been able
to test those cases..

certainly mounting root of disk still works just fine..
mfs should work but is untested. (tomorrows task)

The low level init stuff includes a total rewrite of init_main.c
to make it possible for new modules to have an init phase by simply
adding an entry to a TEXT_SET (or is it DATA_SET) list. thus a new module can
be added to the kernel without editing any other files other than the
'files' file.
1995-08-28 09:19:25 +00:00
Bruce Evans
187f023877 Change vm_object_print() to have the correct number and type of args
for a ddb command.
1995-08-26 23:19:49 +00:00