Commit Graph

2078 Commits

Author SHA1 Message Date
Doug Rabson
7032ad107e Protect all modifications to v_numoutput with splbio(). 1998-08-13 08:09:08 +00:00
Bruce Evans
13950bd2ed Don't configure compatibility code for pre-Lite2 mount() calls by
default.  This code should go away soon.
1998-08-12 20:17:42 +00:00
Doug Rabson
a2c99e3e72 Modify the internal interfaces to the kernel linker to make it possible
for DDB to use its symbol tables.
1998-08-12 08:44:21 +00:00
Bruce Evans
18c5a6c435 Implemented dynamic registration of software interrupt handlers. Not
used yet.

Use dummy SWI handlers to avoid some checks for null pointers.
1998-08-11 15:08:13 +00:00
Bruce Evans
c41141b002 Fixed the formatting of some tables (mainly the one produced by ps
in ddb) which I broke by changing %8[l]x to %8p.  Hacked the central
printf routine to not add an "0x" prefix for %p formats if the field
width is nonzero.  The tables are still horribly misformatted on
64-bit machines.

Use %p instead of %8p to print pointers when the field width isn't
important.
1998-08-10 14:27:34 +00:00
Poul-Henning Kamp
22126f4208 The machine dependent disk slice manager does not recognize
DOS partition type 15 (Extended DOS, LBA) as a container for
DOS logical volumes, so the appropriate slices (e.g. sd1s5)
are not initialized.

PR:		7549
PR:		4120
Reviewed by:	phk
Submitted by:	Jim Mattson <jmattson@sonic.net>
1998-08-10 07:22:14 +00:00
Doug Rabson
d474eaaa5f Protect all modifications to paging_in_progress with splvm(). The i386
managed to avoid corruption of this variable by luck (the compiler used a
memory read-modify-write instruction which wasn't interruptable) but other
architectures cannot.

With this change, I am now able to 'make buildworld' on the alpha (sfx: the
crowd goes wild...)
1998-08-06 08:33:19 +00:00
Bruce Evans
6360628342 Removed unused function hzto(). 1998-08-05 18:06:40 +00:00
David Greenman
760c5490ee Move assignment of cur_rlp to after the acquisition of the list lock.
PR:	7496
Submitted by:	Stefan Eggers <seggers@semyam.dinoco.de>
1998-08-05 14:06:04 +00:00
Poul-Henning Kamp
205d5ed6ff remove nonsense code.
PR:		7482
Reviewed by:	phk
Submitted by:	Stefan Eggers <seggers@semyam.dinoco.de>
1998-08-04 09:21:04 +00:00
Bruce Evans
34e9dea435 Added a flags arg to dsopen() and updated drivers. The DSO_ONESLICE
and DSO_NOLABELS flags prevent searching for slices and labels
respectively.  Current drivers don't set these flags.  When
DSO_NOLABELS is set, the in-core label for the whole disk is cloned
to create an in-core label for each slice.  This gives the correct
result (a good in-core label for the compatibility slice) if
DSO_ONESLICE is set or only one slice is found, but usually gives
broken labels otherwise, so DSO_ONESLICE should be set if DSO_NOLABELS
is set.
1998-07-30 15:16:06 +00:00
Doug Rabson
8a8a13c8f0 Only access an int for READU/WRITEU since that is what ptrace is declared to
return.
1998-07-29 18:41:30 +00:00
Doug Rabson
a9d81f7c5c Default to FreeBSD if no brand detected. This makes life easier when
bootstrapping from NetBSD/alpha.
1998-07-29 18:39:35 +00:00
Bruce Evans
d974cf4dda Fixed printf format errors. 1998-07-29 17:38:14 +00:00
Bruce Evans
f9a9c96c25 Centralized and optimized handling of large sectors. Centralized
checking of transfer sizes and alignments.

Old version tested with 2K-sectors on od disks by: Shunsuke Akiyama
<akiyama@kme.mei.co.jp>.
1998-07-29 11:15:54 +00:00
Bruce Evans
ea0823f2c9 Use the slice-relative blkno in all parts of the label write
protection checks.  Using the partition-relative blkno in some
parts broke the write protection for partitions at unusual
offsets (only for partitions at offset 1 on i386's).
1998-07-29 08:24:23 +00:00
Joerg Wunsch
57308494ec Make the logging of abnormally exiting processes optional by a sysctl.
PR:		kern/1711
Submitted by:	Nick Sayer <nsayer@kfu.com>
1998-07-28 22:34:12 +00:00
Bruce Evans
1733a6c1df Set bp->b_resid for failed transfers in dscheck(). This is the
best place to set it, and the wd and wfd strategy routines don't
set it (for failed transfers) because they expect dscheck() to
initialize everything necessary.  dscheck() has always set B_ERROR,
but this is not quite sufficient, because b_resid is used by physio()
to decide how much of a B_ERROR'ed i/o was done.
1998-07-28 19:39:09 +00:00
Bruce Evans
aa6db4230d Used daddr_t's, not ints, to store disk block numbers. Updated printf
formats and args to match.  Fixed old printf format errors (all related;
most were hidden by calling printf indirectly).

This change somehow avoids compiler bugs for 64-bit longs on i386's,
although it increases the number of 64-bit calculations.
1998-07-28 18:25:51 +00:00
Bruce Evans
bc9e7c3b42 Fixed double counting of runtime after a process exits. The last
timeslice of the exiting process was counted for both the exiting
process and the next process to run if the next process runs
immediately.

Broken in:	mostly in kern_clock.c rev.1.70 (1998/05/28)
1998-07-27 19:16:21 +00:00
David Greenman
01ddfa33e6 Only call m_reclaim() if M_WAIT since calling it from an interrupt can
cause problems.
PR:	7403
1998-07-27 03:59:48 +00:00
Bruce Evans
f69c53b019 Don't pass the label to diskerr(), since the label is being constructed
and may be invalid.  In particular, d_secpercyl may be 0, and diskerr()
divides by it.
1998-07-25 16:35:06 +00:00
Doug Rabson
0bf030847d Add some very simple support for a compiled in (from config(8)) resource
database.
1998-07-22 08:35:52 +00:00
Bruce Evans
7cb743ae28 Initialize more defaults for the in-core label for the whole disk.
Callers only need to initialize d_secperunit now, but should
initialize d_type (to reduce the IDE/SCSI confusion), d_typename
(put the disk model in it) and geometry info (if it isn't completely
ficticious).  Callers will soon need to initialize d_secsize.
1998-07-20 14:35:27 +00:00
Bruce Evans
f21b93a0f7 Cleaned up rev.1.39 - the shadowing variable should have just gone away. 1998-07-20 13:51:11 +00:00
Bruce Evans
92d1f65ed2 Moved allocation of the slices struct to the right place. Initialize
everything in it (the devsw pointers were not initialized early or at
all for the !DEVFS case, but this was harmless on i386's).
1998-07-20 13:39:45 +00:00
Bruce Evans
1e550e3809 Backed out rev.1.43 (removed nonsense SLICE ifdef). SLICE is
normally only defined in opt_devfs.h, so testing it before including
anything is normally a no-op.  Undef'ing DEVFS before including
opt_devfs.h is similarly useless.  OTOH, DEVFS support for sliced
but not SLICEd (despite defined(SLICE)) devices is either harmless
(if there are no such devices, then nothing in this file is used)
or necessary (otherwise).  It even seems to work for sliced cd
devices.
1998-07-20 12:37:59 +00:00
Bill Fenner
0c495036b4 Undo rev 1.41 until we get more details about why it makes some systems
fail.
1998-07-18 18:48:45 +00:00
Bruce Evans
18da528d41 Changed %n to %r in devfs name format strings. %n has almost gone away. 1998-07-15 12:18:34 +00:00
Bruce Evans
30166fabb6 Cast between longs and pointers via intptr_t. There shouldn't be
nearly so many casts here.  Casting an pointer that was an integer
back to an integer just to compare it with -1 is bad, and casting
it back just to compare it with NULL is just wrong.
1998-07-15 06:51:14 +00:00
Bruce Evans
d4d88b1e4d Cast between u_longs and object pointers via uintptr_t.
Access the entry address as a uintfptr_t, not as a long, and not
necessarily as what modload(8) passes (it takes a u_long from the
exec header and passes a u_int).
1998-07-15 06:39:12 +00:00
Bruce Evans
aae0aa4593 Cast between longs and pointers via intptr_t. The results of fuword()
should be checked before casting.  The results of suword() should be
checked.
1998-07-15 06:19:33 +00:00
Bruce Evans
1ede4662be Cast longs to intptr_t before casting them to pointers.
Fixed bitrot in pseudo-declaration of `struct fcntl_args'.  fcntl()
is now broken in some cases when ints are larger than longs.
1998-07-15 06:10:16 +00:00
Bruce Evans
c2da0fd903 Cast pointers to intptr_t instead of or before casting to long.
Fixed bitrot in K&R support (suword() now takes a long word).
Didn't fix corresponding bitrot in store.9 and fetch.9.

The correct types for the store and fetch families are problematic.
The `word' functions are unfortunately named and need to be split
to handle ints/longs/object pointers/function pointers.  Storing
argv[] as longs is quite broken when longs are longer than pointers,
but usually works because it clobbers variables that will soon be
reinitialized.
1998-07-15 05:21:48 +00:00
Bruce Evans
7cd99438f8 Cast u_longs to uintptr_t before casting them to pointers. Don't
attempt to even partially support systems with function pointers
larger than object pointers.
1998-07-15 05:00:26 +00:00
Bruce Evans
6a206dd96a Cast function pointers to uintfptr_t before casting them to u_long.
Hopefully caddr_t is large enough to hold function pointers.

Cast object pointers to uintptr_t before casting them to u_long.

Types are wronger than usual for the PT_READ_U case.  ptrace() can
only return ints, but longs are accessed.
1998-07-15 04:43:49 +00:00
Bruce Evans
a23d65bfc8 Cast pointers to uintptr_t/intptr_t instead of to u_long/long,
respectively.  Most of the longs should probably have been
u_longs, but this changes is just to prevent warnings about
casts between pointers and integers of different sizes, not
to fix poorly chosen types.
1998-07-15 02:32:35 +00:00
Bruce Evans
37889b394a Changed to the C9x draft spelling of the (unsigned) integral type
suitable for holding object pointers (ptrint_t -> uintptr_t).
Added corresponding signed type (intptr_t).  Changed/added
corresponding non-C9x types for function pointers to match.  Don't
use nonstandard types to implement these types, and don't comment
on them in <machine/types.h>.
1998-07-14 05:09:48 +00:00
Bruce Evans
9f14a215f4 Fixed printf format errors. 1998-07-13 07:05:55 +00:00
Doug Rabson
7a6c46b55a Initialise all the fields separately in vattr_null since on the alpha
they are not all the same width.
1998-07-12 16:45:39 +00:00
Doug Rabson
45c95fa1d6 Change interrupt api to be closer to intr_create/intr_connect. 1998-07-12 16:20:52 +00:00
Bruce Evans
bef7db2e66 Moved definition of fscale from param.c to kern_synch.c where it
should always have been (it has no user-servicable parts even at
compile time) and staticized it.
1998-07-11 13:06:41 +00:00
Bruce Evans
2f18a2801b Fixed printf format errors. 1998-07-11 10:45:45 +00:00
Bruce Evans
ed62fb52ec Fixed printf format errors. 1998-07-11 10:28:47 +00:00
Bruce Evans
ac1e407b32 Fixed printf format errors. 1998-07-11 07:46:16 +00:00
Bruce Evans
e0c38587af Fixed (un)sign extension bugs in %+n format. -4 became
(long)(u_long)(u_int)-4 = 0x00000000fffffffc on machines with 32-bit
ints and 64-bit longs.

Restored %z format for printing signed hex.  %+x shouldn't have been
used since it is an error in userland.

Prepared to nuke %n format by cloning it to %r.  %n shouldn't have
been used because it means something completely different in
userland.  Now %+r is equivalent to ddb's original %r, and %r is
equivalent to ddb's original %n.

Ignore '+' flag in combination with unsigned formats %{o,p,u,x}.
1998-07-08 10:41:32 +00:00
Sean Eric Fagan
c5edb423c6 Add support for run-time configuration of core file names. In a nutshell,
you can specify the corefile name by using:

	sysctl -w kern.corefile="format"

where format is a pathname (relative or absolute -- default is "%N.core"),
with "%N" (process name), "%P" (process ID), and "%U" (user ID) formats.

Reviewed by:	Mike Smith, with strong requests by Julian :)
1998-07-08 06:38:39 +00:00
Julian Elischer
6deaf84b1f Catch a few corner cases where FreeBSD differs enough from BSD 4.4 to
confuse Soft updates..
Should solve several "dangling deps" panics.
1998-07-08 01:04:33 +00:00
Bruce Evans
c4ebf24f6e Don't depend on gcc's feature of casting lvalues. 1998-07-07 04:36:23 +00:00
Bill Fenner
dece5b6a43 Introduce (fairly hacky) workaround for odd TCP behavior with application
writes of size (100,208]+N*MCLBYTES.

The bug:
 sosend() hands each mbuf off to the protocol output routine as soon as it
 has copied it, in the hopes of increasing parallelism (see
  http://www.kohala.com/~rstevens/vanj.88jul20.txt ). This works well for
 TCP as long as the first mbuf handed off is at least the MSS.  However,
 when doing small writes (between MHLEN and MINCLSIZE), the transaction is
 split into 2 small MBUF's and each is individually handed off to TCP.
 TCP assumes that the first small mbuf is the whole transaction, so sends
 a small packet.  When the second small mbuf arrives, Nagle prevents TCP
 from sending it so it must wait for a (potentially delayed) ACK.  This
 sends throughput down the toilet.

The workaround:
 Set the "atomic" flag when we're doing small writes.  The "atomic" flag
 has two meanings:
 1. Copy all of the data into a chain of mbufs before handing off to the
    protocol.
 2. Leave room for a datagram header in said mbuf chain.
 TCP wants the first but doesn't want the second.  However, the second
 simply results in some memory wastage (but is why the workaround is a
 hack and not a fix).

The real fix:
 The real fix for this problem is to introduce something like a "requested
 transfer size" variable in the socket->protocol interface.  sosend()
 would then accumulate an mbuf chain until it exceeded the "requested
 transfer size".  TCP could set it to the TCP MSS (note that the
 current interface causes strange TCP behaviors when the MSS > MCLBYTES;
 nobody notices because MCLBYTES > ethernet's MTU).
1998-07-06 19:27:14 +00:00
Julian Elischer
596f8506ad fix braino from yesterdays' megacommit
Not sure of the result of it..
(may or may not effect anything) but it's fixed now.
(found by: comparing what cvsup sent back to me with what I tested..)
1998-07-05 20:33:18 +00:00
Julian Elischer
f7ea2f55d1 There is no such thing any more as "struct bdevsw".
There is only cdevsw (which should be renamed in a later edit to deventry
or something). cdevsw contains the union of what were in both bdevsw an
cdevsw entries.  The bdevsw[] table stiff exists and is a second pointer
to the cdevsw entry of the device. it's major is in d_bmaj rather than
d_maj. some cleanup still to happen (e.g. dsopen now gets two pointers
to the same cdevsw struct instead of one to a bdevsw and one to a cdevsw).

rawread()/rawwrite() went away as part of this though it's not strictly
the same  patch, just that it involves all the same lines in the drivers.

cdroms no longer have write() entries (they did have rawwrite (?)).
tapes no longer have support for bdev operations.

Reviewed by: Eivind Eklund and Mike Smith
	Changes suggested by eivind.
1998-07-04 22:30:26 +00:00
Julian Elischer
fd5d1124e2 VOP_STRATEGY grows an (struct vnode *) argument
as the value in b_vp is often not really what you want.
(and needs to be frobbed). more cleanups will follow this.
Reviewed by: Bruce Evans <bde@freebsd.org>
1998-07-04 20:45:42 +00:00
Poul-Henning Kamp
52f8e5d672 Hmm, braino in last commit. 1998-07-04 19:29:15 +00:00
Poul-Henning Kamp
0edd53d22a Change the sign on a race-condition, so that instead of ending up several
tens of milliseconds out in the future we end up the right place with
a subweeniesecond error.
1998-07-04 19:12:21 +00:00
Poul-Henning Kamp
3e5e083cb7 Update M_EXT support in m_copypacket().
PR:		7122
Reviewed by:	phk
Submitted by:	Castor Fu <castor@geocast.com>
Originally forgotten by:	julian
1998-07-03 08:36:48 +00:00
David Greenman
e25169f239 Reset MNT_ASYNC flag if needed if unmount() should fail.
Submitted by:	Paul Saab <paul@mu.org>
1998-07-03 03:47:24 +00:00
Poul-Henning Kamp
6ca4ca2476 When we transfer time from one timecounter to the next, use nanouptime(),
not nanotime();  Otherwise we end up in 2026...

Fix the arg to dummy_get_timecount()
1998-07-02 21:35:02 +00:00
Poul-Henning Kamp
8cb5266728 Add 3 sysctl variables for future use by ps)1_ 1998-06-30 21:25:58 +00:00
Bruce Evans
673796a715 Nuked opt_defunct.h and kern_opt.c. config(8) now generates good enough
warnings about all unknown options.
1998-06-30 14:43:04 +00:00
Poul-Henning Kamp
67f4e2ed05 Add trailing newline to sys/syscall.mk so that diff doesn't choke on it. 1998-06-28 10:01:52 +00:00
David Greenman
c87e2930e6 Added a sysctl variable kern.sugid_coredump for controlling coredump
behavior of setuid/setgid binaries that defaults to 0 (coredump disabled).
1998-06-28 08:37:45 +00:00
Poul-Henning Kamp
c259b8dd2b Report the mode as the result of the VOP_GETATTR rather than the
vnodes type, they may not correspond.
1998-06-27 06:43:09 +00:00
Poul-Henning Kamp
7c281842e3 Remove isdisk() hacks. 1998-06-26 18:14:25 +00:00
Poul-Henning Kamp
b62591052c Remove bdevsw_add(), change the only two users to use bdevsw_add_generic().
Extend cdevsw to be superset of bdevsw.
Remove non-functional bdev lkm support.
Teach wcd what the open() args mean.
1998-06-25 11:28:07 +00:00
Bruce Evans
be160d60ab Removed unused includes. 1998-06-21 18:02:50 +00:00
Bruce Evans
e5b19842ef Removed unused includes. 1998-06-21 14:53:44 +00:00
Bruce Evans
df471779ea Round tickadj up. This prevents tickadj from being 0 when HZ > 500,
which makes adjtime(2) useless and confuses xntpd(8) into refusing
to start even when it would use the kernel PLL instead of adjtime().
The result is the same as recommended by tickadj(8), at least when
HZ divides 10^6.  Of course, you wouldn't want to actually use
adjtime() when HZ is large.  In the silly boundary case of HZ == 10^6,
tickadj == tick == 1 so the clock stops while adjtime() is active.
1998-06-21 12:22:35 +00:00
Bruce Evans
316bbd5c6f Converted add_interrupt_randomness() to take a `void *' arg. Rewrote
mmioctl() to fix hundreds of style bugs and a few error handling bugs
(don't check for superuser privilege for inappropriate ioctls, don't
check the input arg for the output-only MEM_RETURNIRQ ioctl, and don't
return EPERM for null changes).
1998-06-21 11:33:32 +00:00
Bruce Evans
9a2daf9190 Changed the type of an isa/general interrupt handler to take a
`void *' arg.  Fixed or hid most of the resulting type mismatches.
Handlers can now be updated locally (except for reworking their
global declarations in isa_device.h).
1998-06-18 15:32:09 +00:00
Bruce Evans
f95ac73519 Use copyout() instead of bcopy() to copy the image to user space.
bcopy() caused panics under heavy paging (not quite as suspected -
the kernel stack seemed to get corrupted).

Fixed long lines.

Reviewed by:	phk
1998-06-16 14:36:40 +00:00
Doug Rabson
b1bf661000 [Add missing files from previous commit]
Major changes to the generic device framework for FreeBSD/alpha:

* Eliminate bus_t and make it possible for all devices to have
  attached children.

* Support dynamically extendable interfaces for drivers to replace
  both the function pointers in driver_t and bus_ops_t (which has been
  removed entirely.  Two system defined interfaces have been defined,
  'device' which is mandatory for all devices and 'bus' which is
  recommended for all devices which support attached children.

* In addition, the alpha port defines two simple interfaces 'clock'
  for attaching various real time clocks to the system and 'mcclock'
  for the many different variations of mc146818 clocks which can be
  attached to different alpha platforms.  This eliminates two more
  function pointer tables in favour of the generic method dispatch
  system provided by the device framework.

Future device interfaces may include:

* cdev and bdev interfaces for devfs to use in replacement for specfs
  and the fixed interfaces bdevsw and cdevsw.

* scsi interface to replace struct scsi_adapter (not sure how this
  works in CAM but I imagine there is something similar there).

* various tailored interfaces for different bus types such as pci,
  isa, pccard etc.
1998-06-14 13:53:12 +00:00
Doug Rabson
99d11cde56 Major changes to the generic device framework for FreeBSD/alpha:
* Eliminate bus_t and make it possible for all devices to have
  attached children.

* Support dynamically extendable interfaces for drivers to replace
  both the function pointers in driver_t and bus_ops_t (which has been
  removed entirely.  Two system defined interfaces have been defined,
  'device' which is mandatory for all devices and 'bus' which is
  recommended for all devices which support attached children.

* In addition, the alpha port defines two simple interfaces 'clock'
  for attaching various real time clocks to the system and 'mcclock'
  for the many different variations of mc146818 clocks which can be
  attached to different alpha platforms.  This eliminates two more
  function pointer tables in favour of the generic method dispatch
  system provided by the device framework.

Future device interfaces may include:

* cdev and bdev interfaces for devfs to use in replacement for specfs
  and the fixed interfaces bdevsw and cdevsw.

* scsi interface to replace struct scsi_adapter (not sure how this
  works in CAM but I imagine there is something similar there).

* various tailored interfaces for different bus types such as pci,
  isa, pccard etc.
1998-06-14 13:46:10 +00:00
Poul-Henning Kamp
938ee3ce4d Introduce std_pps_ioctl() to automagically DTRT.
Add scaling capability to timex.offset, ntpd-4.0.73 will support this.
1998-06-13 09:30:26 +00:00
Doug Rabson
3900ddb2dc Only build this on i386 for now. I may use it for the alpha later but
currently it doesn't compile.
1998-06-11 07:23:59 +00:00
Julian Elischer
32f5d4d843 Replace 'sleep()' with 'tsleep()'
Accidentally imported from Kirk's codebase.

Pointed out by: various.
1998-06-10 22:02:14 +00:00
Julian Elischer
28913ebe4e Submitted by: Kirk McKusick <mckusick@McKusick.COM>
Fix for potential hang when trying to reboot the system or
to forcibly unmount a soft update enabled filesystem.
FreeBSD already handled the reboot case differently, this is however a better
fix.
1998-06-10 18:13:19 +00:00
Doug Rabson
897cd717a5 Add initial support for the FreeBSD/alpha kernel. This is very much a
work in progress and has never booted a real machine.  Initial
development and testing was done using SimOS (see
http://simos.stanford.edu for details).  On the SimOS simulator, this
port successfully reaches single-user mode and has been tested with
loads as high as one copy of /bin/ls :-).

Obtained from: partly from NetBSD/alpha
1998-06-10 10:57:29 +00:00
Doug Rabson
8c12612cf6 64bit fixes: don't cast pointers to int. 1998-06-10 10:31:08 +00:00
Doug Rabson
2b605d0804 64bit fixes: don't cast p->p_retval to an int*. 1998-06-10 10:30:23 +00:00
Doug Rabson
831b9ef2be 64bit fixes: use u_long not int for ioctl command. 1998-06-10 10:29:31 +00:00
Doug Rabson
10d4743f6f 64bit fixes: use size_t not u_int for sizes. 1998-06-10 10:28:29 +00:00
Doug Rabson
2ef49ddfcb 64bit fixes: p->p_retval is a register_t[] not an int[]. 1998-06-10 10:27:43 +00:00
Poul-Henning Kamp
a58f0f8e66 Add a tc_ prefix to struct timecounter members.
Urged by:	bde
1998-06-09 13:10:54 +00:00
Bruce Evans
1afde994e9 Pass lists of possible root devices and their names up to the
machine-independent code and try mounting the devices in the
lists instead of guessing alternative root devices in a machine-
dependent way.

autoconf.c:
Reject preposterous slice numbers instead of silently converting
them to COMPATIBILITY_SLICE.

Don't forget to force slice = COMPATIBILITY_SLICE in the floppy
device name.

Eliminated most magic numbers and magic device names in setroot().

Fixed dozens of style bugs.

vfs_conf.c:
Put the actual root device name instead of "root_device" in the
mount struct if the actual name is available.  This is useful after
booting with -s.  If it were set in all cases then it could be used
to do mount(8)'s ROOTSLICE_HUNT and fsck(8)'s hotroot guess better.
1998-06-09 12:52:35 +00:00
Bruce Evans
e7c1c309fa Don't generate COMPAT_43 cruft if there are no COMPAT_43 syscalls.
In particular, don't generate an include of "opt_compat.h" if it
wouldn't affect anything we create.  This will fix recent breakage
of the ibcs2 LKM.  The ibcs2 syscall files were not regenerated
properly, so the LKM didn't break immediately when we started
generating this extraneous include.
1998-06-09 03:32:05 +00:00
John Dyson
0d3dd8fbc5 Remove some junk left over from a previous commit.
Submitted by:	phk
1998-06-08 18:18:28 +00:00
Bruce Evans
414c93f3aa Updated generated files. 1998-06-08 11:08:35 +00:00
Bruce Evans
bf0955a99d Fixed some style bugs in output (missing tabs and unparenthesized macros).
Fixed some style bugs in source (mostly, superfluous backslashes).
1998-06-08 11:02:00 +00:00
Doug Rabson
2e91d07af9 Fix a typo which prevented i386 elf from working at all (including Linux
emulated elf binaries).
1998-06-08 09:19:35 +00:00
Poul-Henning Kamp
48115288df Add a member function more to the timecounters, this one is for use
with latch based PPS implementations.  The client that uses it will
be committed after more testing.
1998-06-07 20:36:55 +00:00
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
Poul-Henning Kamp
dbb3475507 Add a "this" style argument and a "void *private" so timecounters can
figure out which instance to wount with.
1998-06-07 08:40:53 +00:00
Bruce Evans
e3a03f0cfb Don't attempt to copy the whole slices "struct" for DIOCGSLICEINFO.
The slices "struct" isn't really a struct; we allocate only part of
it in the fully dangerously dedicated case.  Since the "struct" is
malloced, the page beyond it may not be mapped, so attempts to copy
it would crash.  This problem became larger when the full struct was
bloated from < 1K to > 3K by the addition of (mostly unused) DEVFS
tokens some time before 2.2.0 was released.
1998-06-06 03:06:55 +00:00
David Greenman
b5afad7198 Moved limit frobbing (and the resulting limcopy()) that occurs for
accounting to the accounting function so that this isn't needlessly
done for some process exits.
Reviewed by:	bde,phk
1998-06-05 21:44:20 +00:00
David Greenman
9523f5c199 If we are out of mb_map space and we failed to m_reclaim() anything and
the alloc is not M_DONTWAIT, then panic with "Out of mbuf clusters".
Callers that specify M_WAIT can't deal with getting a NULL buffer, so this
is a more graceful failure than randomly page faulting in the socket code
or elsewhere.
1998-06-05 21:41:48 +00:00
John Dyson
e8f367853b Correct sleep priority. 1998-06-02 05:39:13 +00:00
Peter Dufault
ce47711dee Set PAGE_SIZE for _SC_PAGESIZE sysconf(). 1998-06-01 21:54:43 +00:00
Peter Wemm
4dc75870b2 Have the wakeup routine do the upcall if needed.
Obtained from: NetBSD
1998-05-31 18:38:43 +00:00
Poul-Henning Kamp
e796e00de3 Some cleanups related to timecounters and weird ifdefs in <sys/time.h>.
Clean up (or if antipodic: down) some of the msgbuf stuff.

Use an inline function rather than a macro for timecounter delta.

Maintain process "on-cpu" time as 64 bits of microseconds to avoid
needless second rollover overhead.

Avoid calling microuptime the second time in mi_switch() if we do
not pass through _idle in cpu_switch()

This should reduce our context-switch overhead a bit, in particular
on pre-P5 and SMP systems.

WARNING:  Programs which muck about with struct proc in userland
will have to be fixed.

Reviewed, but found imperfect by:       bde
1998-05-28 09:30:28 +00:00
John Dyson
cf2819ccb8 Make flushing dirty pages work correctly on filesystems that
unexpectedly do not complete writes even with sync I/O requests.
This should help the behavior of mmaped files when using
softupdates (and perhaps in other circumstances also.)
1998-05-21 07:47:58 +00:00
Peter Dufault
aebde78243 1. Add new defs for mins and maxs for the POSIX flavor priorities. They
end up being the same, but it doesn't look like you're comparing
apples and oranges.

2. Use need_resched instead of reset_priority.  This isn't right
either, since for example you'll round-robin against equal priority FIFO
processes when lowering the priority of another process,
but this works better and a real fix needs to be in kern_synch and
not out here.

3. This is not a device driver: copyin/copyout the structure.
1998-05-19 21:11:53 +00:00
Poul-Henning Kamp
579f4456b9 Change a data type internal to the timecounters, and remove the "delta"
function.

Reviewed, but not entirely approved by: bde
1998-05-19 18:55:02 +00:00
Poul-Henning Kamp
58067a9909 Make the size of the msgbuf (dmesg) a "normal" option. 1998-05-19 08:58:53 +00:00
Tor Egge
afc6ea238f Disallow reading the current kernel stack. Only the user structure and
the current registers should be accessible.
Reviewed by:	David Greenman <dg@root.com>
1998-05-19 00:00:14 +00:00
Peter Dufault
2a61a11038 1. Don't use "nosys" and generate coredumps for unconfigured
system calls - return ENOSYS per the spec.

2. Fix interface stub to set priority properly.
1998-05-18 12:53:45 +00:00
Tor Egge
2f1e70693d Add forwarding of roundrobin to other cpus. This gives a more regular
update of cpu usage as shown by top when one process is cpu bound
(no system calls) while the system is otherwise idle (except for top).

Don't attempt to switch to the BSP in boot().  If the system was idle when
an interrupt caused a panic, this won't work.  Instead, switch to the BSP
in cpu_reset.

Remove some spurious forward_statclock/forward_hardclock warnings.
1998-05-17 22:12:14 +00:00
Bruce Evans
ee002b68d1 Fixed interval calculation in realitimexpire() again. Obtained from:
rev.1.9.  Broken in: rev.1.50.

Fixed a spelling error.  Obtained from: Lite2.
1998-05-17 20:13:01 +00:00
Bruce Evans
c8b4782815 Fixed stale references to hzto() in comments. 1998-05-17 20:08:05 +00:00
Tor Egge
cb87a87c16 Supply the correct process argument to dounmount when possible. 1998-05-17 19:38:55 +00:00
Tor Egge
5931a9c24e For SMP, use prv_PPAGE1/prv_PMAP1 instead of PADDR1/PMAP1.
get_ptbase and pmap_pte_quick no longer generates IPIs.
This should reduce the number of IPIs during heavy paging.
1998-05-17 18:53:19 +00:00
Poul-Henning Kamp
c21410e119 s/nanoruntime/nanouptime/g
s/microruntime/microuptime/g

Reviewed by:	bde
1998-05-17 11:53:46 +00:00
Garrett Wollman
98271db4d5 Convert socket structures to be type-stable and add a version number.
Define a parameter which indicates the maximum number of sockets in a
system, and use this to size the zone allocators used for sockets and
for certain PCBs.

Convert PF_LOCAL PCB structures to be type-stable and add a version number.

Define an external format for infomation about socket structures and use
it in several places.

Define a mechanism to get all PF_LOCAL and PF_INET PCB lists through
sysctl(3) without blocking network interrupts for an unreasonable
length of time.  This probably still has some bugs and/or race
conditions, but it seems to work well enough on my machines.

It is now possible for `netstat' to get almost all of its information
via the sysctl(3) interface rather than reading kmem (changes to follow).
1998-05-15 20:11:40 +00:00
Peter Wemm
9c4aed2ed7 Nuke signanosleep(). (I've left nanosleep1() seperate to nanosleep()
as I don't want to mess with the multiple returns)
1998-05-14 11:31:08 +00:00
Peter Wemm
06b6493558 regen after signanosleep nuke 1998-05-14 11:29:06 +00:00
Peter Wemm
786cf38a29 deep-six signanosleep(). It sounded like a good idea at the time. 1998-05-14 11:28:11 +00:00
Peter Wemm
1973d51bfb Commit an old change that has been sitting around for a long while.
signanosleep() did not deal with signal masks properly.  This change was
based on a discussion with bde some time ago (at least 6 months or more).

signanosleep() should probably go away since it was never really used for
more than a few weeks and doesn't appear in released code.  It should
probably be killed before somebody uses it and it becomes a gratuitous
nonstandard feature.
1998-05-14 10:38:52 +00:00
Bruce Evans
b322fb5d76 Backed out previous commit. It is invalid to call d_ioctl() on
possibly non-open devices, and we don't want to restrict dumping
to swap devices anwyay.  It is especially invalid to call d_ioctl()
in non-process context for panics.  d_psize() can be called on
non-open devices, at least on non-SLICED ones that support d_dump(),
and setdumpdev() has depended on this for a long time although it
is probably wrong, but even d_psize() can't be called in non-process
context - that's why dumpsys() depends on previously computed values
although these values may be stale.  The historical restriction to
devices with dkpart(dev) == SWAP_PART should go away.
1998-05-12 17:34:02 +00:00
John Dyson
1f56217280 Fix the futimes/undelete/utrace conflict with other BSD's. Note that
the only common  usage of utrace (the possible problem with this
commit) is with malloc, so this should be a real problem.  Add
the various NetBSD syscalls that allow full emulation of their
development environment.
1998-05-11 03:55:28 +00:00
John Dyson
f0175db1ee Attempt to set write combining mode for graphics devices. 1998-05-11 01:06:08 +00:00
Mike Smith
7be2d30077 In the words of the submitter:
---------
Make callers of namei() responsible for releasing references or locks
instead of having the underlying filesystems do it.  This eliminates
redundancy in all terminal filesystems and makes it possible for stacked
transport layers such as umapfs or nullfs to operate correctly.

Quality testing was done with testvn, and lat_fs from the lmbench suite.

Some NFS client testing courtesy of Patrik Kudo.

vop_mknod and vop_symlink still release the returned vpp.  vop_rename
still releases 4 vnode arguments before it returns.  These remaining cases
will be corrected in the next set of patches.
---------

Submitted by:	Michael Hancock <michaelh@cet.co.jp>
1998-05-07 04:58:58 +00:00
Julian Elischer
7f2f1b784e Add dump support to the DEVFS/slice code.
now we can actually catch our crashes :-)

Submitted by: Luoqi Chen <luoqi@chen.ml.org> (the man who's everywhere)
1998-05-06 22:14:48 +00:00
Mike Smith
79cc756d8b As described by the submitter:
Reverse the VFS_VRELE patch.  Reference counting of vnodes does not need
to be done per-fs.  I noticed this while fixing vfs layering violations.
Doing reference counting in generic code is also the preference cited by
John Heidemann in recent discussions with him.

The implementation of alternative vnode management per-fs is still a valid
requirement for some filesystems but will be revisited sometime later,
most likely using a different framework.

Submitted by:	Michael Hancock <michaelh@cet.co.jp>
1998-05-06 05:29:41 +00:00
John Dyson
96fb8cf258 Fix the shm panic. I mistakenly used the shadow_count to keep the object
from being split, and instead added an OBJ_NOSPLIT.
1998-05-04 17:12:53 +00:00
John Dyson
cbd8ec0902 Work around some VM bugs, the worst being an overly aggressive
swap space free calculation.  More complete fixes will be forthcoming,
in a week.
1998-05-04 03:01:44 +00:00
Bruce Evans
77849078bf Oops, the previous commit should have changed i386' to __i386__',
not `__i386'.
1998-05-01 16:40:21 +00:00
Bruce Evans
809e3a8464 Partially fixed write clustering for cases where cluster_wbuild() is
called from vfs_bio_awrite() without going through cluster_write()
or ufs_bmaparray(), in particular for all writes to block disk devices.
Only ufs_bmaparray() sets vp->v_maxio in a correct way, and it doesn't
seem to be called early enough even for regular files.
1998-05-01 16:29:27 +00:00
Peter Wemm
b1951f4028 vm_page_is_valid() wasn't expecting a large offset argument, it's
expecting a sub-page offset.  We were passing the file position,
and vm_page_bits() could do some interesting things when base was
larger PAGE_SIZE.
if (size > PAGE_SIZE - base)
	size = PAGE_SIZE - base;
is interesting when (PAGE_SIZE - base) is negative.  I could imagine that
this could have interesting consequences for memory page -> device block
bit validation.
1998-05-01 15:10:59 +00:00
Peter Wemm
f806d5a257 Fix one problem with NFSv3 > 2GB file support.
Submitted by: bde
1998-05-01 15:04:35 +00:00
Eivind Eklund
288078be0f Translate T_PROTFLT to SIGSEGV instead of SIGBUS when running under
Linux emulation.  This make Allegro Common Lisp 4.3 work under
FreeBSD!

Submitted by: Fred Gilham <gilham@csl.sri.com>
Commented on by: bde, dg, msmith, tg
Hoping he got everything right:  eivind
1998-04-28 18:15:08 +00:00
David E. O'Brien
cbcfa1ba6a Discussed with: bde 1998-04-24 11:50:30 +00:00
David E. O'Brien
8f89f24fc3 Create virgin disklabels with 8 (MAXPARTITIONS) partitions rather than
three (RAW_PART + 1);
This makes ``disklabel -Brw sdN auto'' do the Right Thing.
1998-04-24 11:49:57 +00:00
David Greenman
9351a2295a Added kern.ipc.nmbclusters 1998-04-24 04:15:52 +00:00
Julian Elischer
c0bab11dfe Make the devfs SLICE option a standard type option.
(hopefully it will go away eventually anyhow)
1998-04-20 03:57:41 +00:00
Julian Elischer
3e425b968d Add changes and code to implement a functional DEVFS.
This code will be turned on with the TWO options
DEVFS and SLICE. (see LINT)
Two labels PRE_DEVFS_SLICE and POST_DEVFS_SLICE will deliniate these changes.

/dev will be automatically mounted by init (thanks phk)
on bootup. See /sys/dev/slice/slice.4 for more info.
All code should act the same without these options enabled.

Mike Smith, Poul Henning Kamp, Soeren, and a few dozen others

This code does not support the following:
bad144 handling.
Persistance. (My head is still hurting from the last time we discussed this)
ATAPI flopies are not handled by the SLICE code yet.

When this code is running, all major numbers are arbitrary and COULD
be dynamically assigned. (this is not done, for POLA only)
Minor numbers for disk slices ARE arbitray and dynamically assigned.
1998-04-19 23:32:49 +00:00
Dag-Erling Smørgrav
59bad7c53b Backed out lseek changes. 1998-04-19 22:20:32 +00:00
Dag-Erling Smørgrav
25096724e8 Return EINVAL and do not change file pointer if resulting offset is negative.
PR:		kern/6184
1998-04-18 19:24:44 +00:00
Peter Wemm
37b8ccd37a In vfs_msync(), test to see if the vnode being examined is "interesting"
(ie: it has a vm_object attached and is marked as OBJ_MIGHTBEDIRTY) before
attempting to lock it.  This should reduce the cpu hit that is incurred
when doing a sync(2) and when the syncer process is doing the 30-second
writeback of dirty mmap() data to disk.  Skip this speedup if we are
doing an unmount() to be sure to get everything - we can afford to
occasionally miss a msync while the system is running, but not at unmount.

I'm not sure about the VXLOCK and MNT_WAIT case, it seems a bit odd to skip
doing a page_clean at unmount time just because a vnode is VXLOCKed, but
that's what was being done before...
1998-04-18 06:26:16 +00:00
Dag-Erling Smørgrav
dc73342347 Seventy-odd "its" / "it's" typos in comments fixed as per kern/6108. 1998-04-17 22:37:19 +00:00
Bruce Evans
ab36c3d3e7 Really finish supporting compiling with `gcc -ansi'. 1998-04-17 04:53:44 +00:00
Peter Wemm
efdc5523c0 When the softdep conversion took place, the periodic vfs_msync() from
update got lost.  This is responsible for ensuring that dirty mmap() pages
get periodically written to disk.  Without it, long time mmap's might not
have their dirty pages written out at all of the system crashes or isn't
cleanly shut down.  This could be nasty if you've got a long-running
writing via mmap(), dirty pages used to get written to disk within 30
seconds or so.
1998-04-16 03:31:26 +00:00
Tor Egge
71033a8c50 Unlock mountlist_slock if the mount point was busy (unmount in progress)
during the attempt at lazy fsync.
1998-04-15 18:37:49 +00:00
Bruce Evans
c1087c1324 Support compiling with `gcc -ansi'. 1998-04-15 17:47:40 +00:00
Poul-Henning Kamp
115facb29d Fix a minor mbuf leak created by the previous change.
Reviewed by:	phk
Submitted by:	pb@fasterix.freenix.org (Pierre Beyssac)
1998-04-14 06:24:43 +00:00
Poul-Henning Kamp
aba558930b setsockopt() transports user option data in an mbuf. if the user
data is greater than MLEN, setsockopt is unable to pass it onto
the protocol handler.  Allocate a cluster in such case.

PR:		2575
Reviewed by:	 phk
Submitted by:	Julian Assange proff@iq.org
1998-04-11 20:31:46 +00:00
Poul-Henning Kamp
a2481bbe8e When pmap_pinit0() allocates a page for proc0's page directory,
kernal page table may need to be extended.  But while growing the
kernel page table (pmap_growkernel()), newly allocated kernel page
table pages are entered into every process' page directory. For
proc0, the page directory is not allocated yet, and results in a
page fault.  Eventually, the machine panics with "lockmgr: not
holding exclusive lock".

PR:		5458
Reviewed by:	phk
Submitted by:	Luoqi Chen <luoqi@luoqi.watermarkgroup.com>
1998-04-11 17:24:06 +00:00
Alexander Langer
7c2e3d329a Grammar police. 1998-04-10 00:09:04 +00:00
Wolfram Schneider
5ddc8ded1d New mount option nosymfollow. If enabled, the kernel lookup()
function will not follow symbolic links on the mounted
file system and return EACCES (Permission denied).
1998-04-08 18:31:59 +00:00
Poul-Henning Kamp
5f88ec3625 Minor adjustments to the timecounting and proc0.
Mostly Submitted by:	bde
1998-04-08 09:01:53 +00:00
Peter Wemm
100ceca222 Today is not my lucky day. Fix missing brace and I got a request
to use EMLINK instead.
1998-04-06 19:32:37 +00:00
Peter Wemm
193afe0189 Use a different errno (ELOOP (as sef mentioned) since the text that goes
with the error sounds ok for the condition) if O_NOFOLLOW gets a link.
1998-04-06 18:43:28 +00:00
Peter Wemm
0fdc628b41 Rather than let users get fd's to symlink files, make O_NOFOLLOW cause
an error if it gets a link (like it does if it gets a socket).  The
implications of letting users try and do file operations on symlinks
themselves were too worrying.
1998-04-06 18:25:21 +00:00
Peter Wemm
7e3426aa1f Implement a new open(2) flag: O_NOFOLLOW. This will instruct open
to not follow symlinks, but to open a handle on the link itself(!).
As strange as this might sound, it has several useful applications
safe race-free ways of opening files in hostile areas (eg: /tmp, a mode
1777 /var/mail, etc).  It also would allow things like fchown() to work
on the link rather than having to implement a new syscall specifically for
that task.

Reviewed by: phk
1998-04-06 17:38:43 +00:00
Peter Wemm
aacdc613e5 curproc is initialized in locore at the same time for both SMP and UP now. 1998-04-06 15:51:22 +00:00
Peter Wemm
cf34ef61ee Use real types for the SMP pages being allocated rather than arrays of
ints.  Remove some no longer needed casts.  Initialize the per-cpu
global data area using the structs rather than knowing too much about
layout, alignment, etc.
1998-04-06 15:48:30 +00:00
Poul-Henning Kamp
2eeb0e2ea0 Make read_random() take a (void *) argument instead of (char *) 1998-04-06 09:30:42 +00:00
Poul-Henning Kamp
4cf41af3d4 Make a kernel version of the timer* functions called timerval* to be
more consistent.

OK'ed by:	bde
1998-04-06 08:26:08 +00:00
Poul-Henning Kamp
5704ba6a06 More fixes for the iterative case of nanosleep1 from bruce.
I hate the 2-arg time{spec|val}{add|sub} functions!
1998-04-05 12:10:41 +00:00
Poul-Henning Kamp
bfe6c9fabf Make the dummy timecounter run at 1 MHz rather than 100kHz (noticed by bde)
fix the itimer(REAL) handling.
1998-04-05 11:49:36 +00:00
Peter Wemm
d59fbbf6c8 If there is no error code, don't copyout the remaining time. (As
documented in the man page and the standards).  (and besides, nanosleep1
isn't setting it in this case at present anyway, so we'd be copying junk).
1998-04-05 11:17:19 +00:00
Poul-Henning Kamp
338418263d Fix nanosleep1 based on Bruces suggestion. 1998-04-05 10:28:01 +00:00
Andrey A. Chernov
80a39463c9 Remove unused atv.tv_usec = 0; from select/poll code 1998-04-05 10:03:52 +00:00
Peter Wemm
2257b488b9 tsleep() returns EWOULDBLOCK if the timeout expired. Don't return this
to usermode, otherwise sleep(3) fails, cron doesn't work, etc etc etc.
1998-04-05 07:31:44 +00:00
Peter Wemm
b90dcc0c5d Fix previous commit. Don't people read compiler messages or something?? 1998-04-05 02:59:10 +00:00
Poul-Henning Kamp
91ad39c6b3 Handle double fraction overflow in nano & microtime functions (spotted by Bruce)
Use tvtohz() a place where it fits.
1998-04-04 18:46:13 +00:00
Poul-Henning Kamp
00af9731c9 Time changes mark 2:
* Figure out UTC relative to boottime.  Four new functions provide
      time relative to boottime.

    * move "runtime" into struct proc.  This helps fix the calcru()
      problem in SMP.

    * kill mono_time.

    * add timespec{add|sub|cmp} macros to time.h.  (XXX: These may change!)

    * nanosleep, select & poll takes long sleeps one day at a time

Reviewed by:    bde
Tested by:      ache and others
1998-04-04 13:26:20 +00:00
John Dyson
aec0bcdf5b Perhaps fix a problem that some drivers have that they don't properly
initialize the b_kvasize element.  This might fix some of the split
I/O requests that some people have.
1998-04-04 05:55:05 +00:00
Poul-Henning Kamp
4ff16568be Try to fix poll & select after I broke them. 1998-04-02 07:22:17 +00:00
Tor Egge
5758c2de94 Add two workarounds for broken MP tables:
- Attempt to handle PCI devices where the interrupt is
	  an ISA/EISA interrupt according to the mp table.

	- Attempt to handle multiple IO APIC pins connected to
	  the same PCI or ISA/EISA interrupt source.  Print a
	  warning if this happens, since performance is suboptimal.
	  This workaround is only used for PCI devices.

With these two workarounds, the -SMP kernel is capable of running on
my Asus P/I-P65UP5 motherboard when version 1.4 of the MP table is disabled.
1998-04-01 21:07:37 +00:00
Poul-Henning Kamp
460608e768 Fix an off by 1<<32 error. 1998-03-31 10:47:01 +00:00
Poul-Henning Kamp
75da0aa298 Add a dummy timecounter until we find the real thing(s). 1998-03-31 10:44:56 +00:00
Poul-Henning Kamp
227ee8a188 Eradicate the variable "time" from the kernel, using various measures.
"time" wasn't a atomic variable, so splfoo() protection were needed
around any access to it, unless you just wanted the seconds part.

Most uses of time.tv_sec now uses the new variable time_second instead.

gettime() changed to getmicrotime(0.

Remove a couple of unneeded splfoo() protections, the new getmicrotime()
is atomic, (until Bruce sets a breakpoint in it).

A couple of places needed random data, so use read_random() instead
of mucking about with time which isn't random.

Add a new nfs_curusec() function.

Mark a couple of bogosities involving the now disappeard time variable.

Update ffs_update() to avoid the weird "== &time" checks, by fixing the
one remaining call that passwd &time as args.

Change profiling in ncr.c to use ticks instead of time.  Resolution is
the same.

Add new function "tvtohz()" to avoid the bogus "splfoo(), add time, call
hzto() which subtracts time" sequences.

Reviewed by:	bde
1998-03-30 09:56:58 +00:00
John Dyson
006b9b7df9 Correct a significant problem with the softupdates port. Allow fsync
to work properly within the softupdates framework, and thereby eliminate
some unfortunate panics.
1998-03-29 18:23:44 +00:00
Poul-Henning Kamp
934f5f3306 Export MD5Transform in md5.c and remove a private version in random_machdep.c
md5 is standard as a consequence of this.
1998-03-29 11:55:06 +00:00
Peter Dufault
7c9f6f8f8b Remove duplicate comment 1998-03-28 18:16:29 +00:00
Peter Dufault
38c76440b8 Include sys/resource.h to get PRIO_MAX. 1998-03-28 14:49:47 +00:00
Bruce Evans
3c1300a6b3 Removed unused #includes. 1998-03-28 13:25:01 +00:00
Bruce Evans
771b51ef7b Don't depend on <sys/mount.h> including <sys/socket.h>. 1998-03-28 12:04:40 +00:00
Peter Dufault
8a6472b723 Finish _POSIX_PRIORITY_SCHEDULING. Needs P1003_1B and
_KPOSIX_PRIORITY_SCHEDULING options to work.  Changes:

Change all "posix4" to "p1003_1b".  Misnamed files are left
as "posix4" until I'm told if I can simply delete them and add
new ones;

Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux;

Add man pages for _POSIX_PRIORITY_SCHEDULING system calls;

Add options to LINT;

Minor fixes to P1003_1B code during testing.
1998-03-28 11:51:01 +00:00
Bruce Evans
08637435f2 Moved some #includes from <sys/param.h> nearer to where they are actually
used.
1998-03-28 10:33:27 +00:00
Poul-Henning Kamp
c6bcf724da Split the padding out into a separate function.
Synchronize the kernel and libmd versions of md5c.c

PR:		misc/6127
Reviewed by:	phk
Submitted by:	Ari Suutari <ari@suutari.iki.fi>
1998-03-27 10:23:00 +00:00
John Dyson
f9be84912c Correct a problem where buffers might not be zeroed when needed. The
B_MALLOC buffers might not have been properly zeroed.
1998-03-27 06:48:24 +00:00
Poul-Henning Kamp
a0502b19d4 Add two new functions, get{micro|nano}time.
They are atomic, but return in essence what is in the "time" variable.
gettime() is now a macro front for getmicrotime().

Various patches to use the two new functions instead of the various
hacks used in their absence.

Some puntuation and grammer patches from Bruce.

A couple of XXX comments.
1998-03-26 20:54:05 +00:00
Jonathan Lemon
640c4313af Add the ability to make real-mode BIOS calls from the kernel. Currently,
everything is contained inside #ifdef VM86, so this option must be
present in the config file to use this functionality.

Thanks to Tor Egge, these changes should work on SMP machines.  However,
it may not be throughly SMP-safe.

Currently, the only BIOS calls made are memory-sizing routines at bootup,
these replace reading the RTC values.
1998-03-23 19:52:59 +00:00
John Dyson
52c64c95c5 In kern_physio.c fix tsleep priority messup.
In vfs_bio.c, remove b_generation count usage,
	remove redundant reassignbuf,
	remove redundant spl(s),
	manage page PG_ZERO flags more correctly,
	utilize in invalid value for b_offset until it
		is properly initialized.  Add asserts
		for #ifdef DIAGNOSTIC, when b_offset is
		improperly used.
	when a process is not performing I/O, and just waiting
		on a buffer generally, make the sleep priority
		low.
	only check page validity in getblk for B_VMIO buffers.

In vfs_cluster, add b_offset asserts, correct pointer calculation
	for clustered reads.  Improve readability of certain parts of
	the code.  Remove redundant spl(s).

In vfs_subr, correct usage of vfs_bio_awrite (From Andrew Gallatin
	<gallatin@cs.duke.edu>).  More vtruncbuf problems fixed.
1998-03-19 22:48:16 +00:00
John Dyson
1c77c6b7b0 Fix an embarassing problem in vtruncbuf. 1998-03-19 18:46:58 +00:00
John Dyson
4641c8ac1d Correct a problem where data OR metadata could be thrown away if a
buffer is grown.
1998-03-17 17:36:05 +00:00
KATO Takenori
f1aca9c33f Deleted PC-98 code because (1) machine dependent code should not be in
here, and (2) the flag used in PC-98 code has been assigned to another
purpose.
1998-03-17 08:41:28 +00:00
John Dyson
2deb5d0417 Correct a severely evil bug in the vtruncbuf code. It didn't cause
me any problems until after the previous commit.  This problem then
caused a severe case of creeping crud on my diskdrive, and hosed
my system so bad, that I needed to do a complete reinstall.  Sorry!!!

I assume that others have manifest this bug.
1998-03-17 06:30:52 +00:00
Julian Elischer
c2a94b7a3c Remove a soft-update hook that was accidentally added to the READ path.
also add some comments, and a couple of very minor cosmetic changes.
1998-03-16 18:39:41 +00:00
Poul-Henning Kamp
b05dcf3c2f A bunch of BNN (Bruce Normal Nits) from bde:
Bring back the softclock inlining
	save a couple of <<32's
	many white-space shuffles.
1998-03-16 10:19:12 +00:00
John Dyson
e85c1afb7c Allow vfs_ioopt to be enabled with a (temporary) config option. 1998-03-16 02:13:03 +00:00
John Dyson
bef608bd7e Some VM improvements, including elimination of alot of Sig-11
problems.  Tor Egge and others have helped with various VM bugs
lately, but don't blame him -- blame me!!!

pmap.c:
1)	Create an object for kernel page table allocations.  This
	fixes a bogus allocation method previously used for such, by
	grabbing pages from the kernel object, using bogus pindexes.
	(This was a code cleanup, and perhaps a minor system stability
	 issue.)

pmap.c:
2)	Pre-set the modify and accessed bits when prudent.  This will
	decrease bus traffic under certain circumstances.

vfs_bio.c, vfs_cluster.c:
3)	Rather than calculating the beginning virtual byte offset
	multiple times, stick the offset into the buffer header, so
	that the calculated offset can be reused.  (Long long multiplies
	are often expensive, and this is a probably unmeasurable performance
	improvement, and code cleanup.)

vfs_bio.c:
4)	Handle write recursion more intelligently (but not perfectly) so
	that it is less likely to cause a system panic, and is also
	much more robust.

vfs_bio.c:
5)	getblk incorrectly wrote out blocks that are incorrectly sized.
	The problem is fixed, and writes blocks out ONLY when B_DELWRI
	is true.

vfs_bio.c:
6)	Check that already constituted buffers have fully valid pages.  If
	not, then make sure that the B_CACHE bit is not set. (This was
	a major source of Sig-11 type problems.)

vfs_bio.c:
7)	Fix a potential system deadlock due to an incorrectly specified
	sleep priority while waiting for a buffer write operation.  The
	change that I made opens the system up to serious problems, and
	we need to examine the issue of process sleep priorities.

vfs_cluster.c, vfs_bio.c:
8)	Make clustered reads work more correctly (and more completely)
	when buffers are already constituted, but not fully valid.
	(This was another system reliability issue.)

vfs_subr.c, ffs_inode.c:
9)	Create a vtruncbuf function, which is used by filesystems that
	can truncate files.  The vinvalbuf forced a file sync type operation,
	while vtruncbuf only invalidates the buffers past the new end of file,
	and also invalidates the appropriate pages.  (This was a system reliabiliy
	and performance issue.)

10)	Modify FFS to use vtruncbuf.

vm_object.c:
11)	Make the object rundown mechanism for OBJT_VNODE type objects work
	more correctly.  Included in that fix, create pager entries for
	the OBJT_DEAD pager type, so that paging requests that might slip
	in during race conditions are properly handled.  (This was a system
	reliability issue.)

vm_page.c:
12)	Make some of the page validation routines be a little less picky
	about arguments passed to them.  Also, support page invalidation
	change the object generation count so that we handle generation
	counts a little more robustly.

vm_pageout.c:
13)	Further reduce pageout daemon activity when the system doesn't
	need help from it.  There should be no additional performance
	decrease even when the pageout daemon is running.  (This was
	a significant performance issue.)

vnode_pager.c:
14)	Teach the vnode pager to handle race conditions during vnode
	deallocations.
1998-03-16 01:56:03 +00:00
John Dyson
26300b34f1 Disable the vfs.ioopt option for now, so that we don't get gratuitious
bugreports.  I might not be able to fix the problems before 3.0, due
to other, more important things.
1998-03-14 19:50:36 +00:00
Tor Egge
8293f20aee Don't misuse vnode interlocks in routines that can be called from interrupts.
PR:		5893
1998-03-14 02:55:01 +00:00
Peter Dufault
917827427e idprio processes must be preempted as soon as anything is runnable. 1998-03-11 20:50:42 +00:00
Mike Smith
617dd81f70 If the root mount fails from a device that is not the compatability slice
of a disk, because that slice does not exist, try again mounting from the
compatability slice.

This handles the case where a disk has been initialised by 'disklabel
auto', which places a bogus and invalid slice entry on the disk.
The bootstrap is not smart enough to reject this slice, and pretends to
boot from it.  Believing the the bootstrap at this point is unwise.

Booting from non-'wd' disks thus prepared is still broken, as
'disklabel -rwB xdN auto' does not initialise the disk type field, and
the bootstrap mistakenly claims that the disk is handled by 'wd'.

Behaviour is now consistent with DEVFS expected characteristics.
1998-03-11 00:10:31 +00:00
John Birrell
cbe0799aaf Add statements to generate a sys/syscall.mk file for inclusion
during the libc/libc_r to automatically pick up syscall names on
the assumption that default asm code needs to generated for them.

In the up-coming changes to the libc makefiles, there is the option
to provide a machine dependent asm source file which will turn off
the automatic generation of the default. There is also an option
to just stop code being generated for a syscall. In most cases,
though, the default asm code is all that is required, so this
change makes that the most convenient was to do business.

Idea suggested by: bde
1998-03-09 04:00:42 +00:00
Julian Elischer
b1897c197c Reviewed by: dyson@freebsd.org (john Dyson), dg@root.com (david greenman)
Submitted by:	Kirk McKusick (mcKusick@mckusick.com)
Obtained from:  WHistle development tree
1998-03-08 09:59:44 +00:00
John Dyson
eed2412e5a Free the first page also if it is not valid. 1998-03-08 06:21:33 +00:00
John Dyson
8f9110f6a1 This mega-commit is meant to fix numerous interrelated problems. There
has been some bitrot and incorrect assumptions in the vfs_bio code.  These
problems have manifest themselves worse on NFS type filesystems, but can
still affect local filesystems under certain circumstances.  Most of
the problems have involved mmap consistancy, and as a side-effect broke
the vfs.ioopt code.  This code might have been committed seperately, but
almost everything is interrelated.

1)	Allow (pmap_object_init_pt) prefaulting of buffer-busy pages that
	are fully valid.
2)	Rather than deactivating erroneously read initial (header) pages in
	kern_exec, we now free them.
3)	Fix the rundown of non-VMIO buffers that are in an inconsistent
	(missing vp) state.
4)	Fix the disassociation of pages from buffers in brelse.  The previous
	code had rotted and was faulty in a couple of important circumstances.
5)	Remove a gratuitious buffer wakeup in vfs_vmio_release.
6)	Remove a crufty and currently unused cluster mechanism for VBLK
	files in vfs_bio_awrite.  When the code is functional, I'll add back
	a cleaner version.
7)	The page busy count wakeups assocated with the buffer cache usage were
	incorrectly cleaned up in a previous commit by me.  Revert to the
	original, correct version, but with a cleaner implementation.
8)	The cluster read code now tries to keep data associated with buffers
	more aggressively (without breaking the heuristics) when it is presumed
	that the read data (buffers) will be soon needed.
9)	Change to filesystem lockmgr locks so that they use LK_NOPAUSE.  The
	delay loop waiting is not useful for filesystem locks, due to the
	length of the time intervals.
10)	Correct and clean-up spec_getpages.
11)	Implement a fully functional nfs_getpages, nfs_putpages.
12)	Fix nfs_write so that modifications are coherent with the NFS data on
	the server disk (at least as well as NFS seems to allow.)
13)	Properly support MS_INVALIDATE on NFS.
14)	Properly pass down MS_INVALIDATE to lower levels of the VM code from
	vm_map_clean.
15)	Better support the notion of pages being busy but valid, so that
	fewer in-transit waits occur.  (use p->busy more for pageouts instead
	of PG_BUSY.)  Since the page is fully valid, it is still usable for
	reads.
16)	It is possible (in error) for cached pages to be busy.  Make the
	page allocation code handle that case correctly.  (It should probably
	be a printf or panic, but I want the system to handle coding errors
	robustly.  I'll probably add a printf.)
17)	Correct the design and usage of vm_page_sleep.  It didn't handle
	consistancy problems very well, so make the design a little less
	lofty.  After vm_page_sleep, if it ever blocked, it is still important
	to relookup the page (if the object generation count changed), and
	verify it's status (always.)
18)	In vm_pageout.c, vm_pageout_clean had rotted, so clean that up.
19)	Push the page busy for writes and VM_PROT_READ into vm_pageout_flush.
20)	Fix vm_pager_put_pages and it's descendents to support an int flag
	instead of a boolean, so that we can pass down the invalidate bit.
1998-03-07 21:37:31 +00:00
Tor Egge
1146c3560f The APs now reload the interrupt descriptor table pointer after
f00f_hack has run.

Use the global r_idt descriptor in f00f_hack when in SMP mode,
so the APs find the relocated interrupt descriptor table.

Submitted by:	Partially from David A Adkins <adkin003@tc.umn.edu>
1998-03-07 20:16:49 +00:00
John Dyson
9b2e5bad34 Some kern_lock code improvements. Add missing wakeup, and enable
disabling some diagnostics when memory or speed is at a premium.
1998-03-07 19:25:34 +00:00
Bruce Evans
0b8a3ff790 Set the input and output buffer sizes and the input buffer watermarks
dynamically depending on the line speed(s).  This should give the old
sizes and watermarks until drivers are changed.

Display the input watermarks in pstat and sicontrol.
1998-03-07 15:36:29 +00:00
Peter Dufault
917e476dad Reviewed by: msmith, bde long ago
POSIX.4 headers and sysctl variables.  Nothing should change
unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
Peter Dufault
644d85f4ca Reviewed by: msmith, bde long ago
Fix for RTPRIO scheduler to eliminate invalid context switches.

POSIX.4 headers and sysctl variables.  Nothing should change
unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:25:55 +00:00
John Dyson
a638dbdbf4 Fix a rounding error for the NFS buffer validend.
Submitted by:	John W. De Boskey <jwd@unx.sas.com>
1998-03-04 03:17:30 +00:00
Tor Egge
02c1dc3bbc When entering the apic version of slow interrupt handler, level
interrupts are masked, and EOI is sent iff the corresponding ISR bit
is set in the local apic. If the CPU cannot obtain the interrupt
service lock (currently the global kernel lock) the interrupt is
forwarded to the CPU holding that lock.

Clock interrupts now have higher priority than other slow interrupts.
1998-03-03 22:56:30 +00:00
Tor Egge
3163861c7b Forward the signal if the process runs on a different CPU. This reduces
the signal handling latency for cpu-bound processes that performs very
few system calls.

The IPI for forcing an additional software trap is no longer dependent upon
BETTER_CLOCK being defined.
1998-03-03 20:55:26 +00:00
Tor Egge
fe9cd27373 Reduce timeout before assuming that forwarding of hardclock or softclock
failed. Don't complain on forwarding failure, unless
BETTER_CLOCK_DIAGNOSTIC is defined.
1998-03-03 20:09:14 +00:00
Peter Wemm
c8a7999933 Update the ELF image activator to use some of the exec resources rather
than rolling it's own.  This means that it now uses the "safe"
exec_map_first_page() to get the ld.so headers rather than risking a panic
on a page fault failure (eg: NFS server goes down).
Since all the ELF tools go to a lot of trouble to make sure everything
lives in the first page for executables, this is a win.  I have not seen
any ELF executable on any system where all the headers didn't fit in the
first page with lots of room to spare.
I have been running variations of this code for some time on my pure ELF
systems.
1998-03-02 05:47:58 +00:00
John Dyson
59228495d7 Change vfs.ioopt default back to '0'. 1998-03-01 23:07:45 +00:00
Mike Smith
34bdbbd0de The intent is to get rid of WILLRELE in vnode_if.src by making
a complement to all ops that return a vpp, VFS_VRELE.  This is
initially only for file systems that implement the following ops
that do a WILLRELE:

	vop_create, vop_whiteout, vop_mknod, vop_remove, vop_link,
	vop_rename, vop_mkdir, vop_rmdir, vop_symlink

This is initial DNA that doesn't do anything yet.  VFS_VRELE is
implemented but not called.

A default vfs_vrele was created for fs implementations that use the
standard vnode management routines.

VFS_VRELE implementations were made for the following file systems:

Standard (vfs_vrele)
	ffs mfs nfs msdosfs devfs ext2fs

Custom
	union umapfs

Just EOPNOTSUPP
	fdesc procfs kernfs portal cd9660

These implementations may change as VOP changes are implemented.

In the next phase, in the vop implementations calls to vrele and the vrele
part of vput will be moved to the top layer vfs_vnops and made visible
to all layers.  vput will be replaced by unlock in these cases.  Unlocking
will still be done in the per fs layer but the refcount decrement will be
triggered at the top because it doesn't hurt to hold a vnode reference a
little longer.  This will have minimal impact on the structure of the
existing code.

This will only be done for vnode arguments that are released by the various
fs vop implementations.

Wider use of VFS_VRELE will likely require restructuring of the code.

Reviewed by:	phk, dyson, terry et. al.
Submitted by:	Michael Hancock <michaelh@cet.co.jp>
1998-03-01 22:46:53 +00:00
Guido van Rooij
4049a04253 Make sure that you can only bind a more specific address when it is
done by the same uid.
Obtained from: OpenBSD
1998-03-01 19:39:29 +00:00
John Dyson
ffc82b0a70 1) Use a more consistent page wait methodology.
2)	Do not unnecessarily force page blocking when paging
	pages out.
3)	Further improve swap pager performance and correctness,
	including fixing the paging in progress deadlock (except
	in severe I/O error conditions.)
4)	Enable vfs_ioopt=1 as a default.
5)	Fix and enable the page prezeroing in SMP mode.

All in all, SMP systems especially should show a significant
improvement in "snappyness."
1998-03-01 04:18:54 +00:00
Guido van Rooij
d3c0af6943 Raise ncallout from NPROC + 16 to NPROC + 16 + MAXFILES. This shold
prevent a possible DOS attack. The proper fix (to dynamically grow
the callout list) is in the make.
Submitted by:	Paul Traina
1998-02-27 19:58:29 +00:00
Bruce Evans
5132080e71 Removed unused #includes. 1998-02-25 13:08:07 +00:00
Bruce Evans
57518a4e83 Removed a stale comment and staler code. 1998-02-25 06:30:15 +00:00
Bruce Evans
79aa4f4704 Don't depend on "implicit int" or bloat the data section in the
declaration of ptc_devsw_installed.

Fixed a spelling error.
1998-02-25 06:19:15 +00:00
Bruce Evans
2094493a6c Don't depend on "implicit int". 1998-02-25 06:16:37 +00:00
Bruce Evans
8f03c6f18f Declare function pointer args as pointers, not as functions. 1998-02-25 06:13:32 +00:00
Bruce Evans
a0d38b495a Fixed a missing newline in a debugging printf.
Fixed punctuation in some comments.
1998-02-25 06:04:46 +00:00
Bruce Evans
6b16931c00 Removed unused #includes. 1998-02-25 05:58:50 +00:00
Bruce Evans
9c8fff87fc Fixed the calculation of `delta' in settime(). We once set all
times consistently wrong (up to 1 tick too late), but recent changes
fixed the setting of the main clock, making other times inconsistent.
The inconsistencies tended to show up as a negative resource usage
for the process that set the time.

Fixed the check for setting the clock backwards.  A stale timestamp
(`time') was checked, so it was possible to set the clock backwards
by up to almost 1 tick.  Until recently, this bug was compensated
for by setting the clock consistently wrong.

Merged the comment about setting the clock backwards from Lite2.

Removed latency micro-optimizations/speed pessimizations in settime().
microtime() and set_timecounter() are relatively expensive, and
they must be called together with clock updates blocked to get a
consistent `delta', so significant latency optimizations are not
possible.

Removed some stale comments.
1998-02-25 04:10:32 +00:00
John Dyson
8a58a9f6c9 Try to dynamically size the VM_KMEM_SIZE (but is still able to be overridden
in a way identically as before.)  I had problems with the system properly
handling the number of vnodes when there is alot of system memory, and the
default VM_KMEM_SIZE.  Two new options "VM_KMEM_SIZE_SCALE" and
"VM_KMEM_SIZE_MAX" have been added to support better auto-sizing for systems
with greater than 128MB.
1998-02-23 07:41:23 +00:00
John Dyson
64d3c7e32d Clean-up the vget mechanism by permanently attaching VM objects to
vnodes, therefore vget doesn't need to do so anymore.  Other minor
improvements include the temp free vnode queue obeying the VAGE
flag and a printf that warns of to-be-removed code being executed.
1998-02-23 06:59:52 +00:00
Poul-Henning Kamp
7ec73f6417 Replace TOD clock code with more systematic approach.
Highlights:
    * Simple model for underlying hardware.
    * Hardware basis for timekeeping can be changed on the fly.
    * Only one hardware clock responsible for TOD keeping.
    * Provides a real nanotime() function.
    * Time granularity: .232E-18 seconds.
    * Frequency granularity:  .238E-12 s/s
    * Frequency adjustment is continuous in time.
    * Less overhead for frequency adjustment.
    * Improves xntpd performance.

Reviewed by:    bde, bde, bde
1998-02-20 16:36:17 +00:00
Bruce Evans
876a94ee2c Staticized.
Don't depend on "implicit int".
1998-02-20 13:52:15 +00:00
Bruce Evans
e31abede1f Don't depend on "implicit int" or bloat the data section in the
declaration of xxx_devsw_installed.
1998-02-20 13:46:58 +00:00
Bruce Evans
d68fa50ccb Don't depend on "implicit int". 1998-02-20 13:37:40 +00:00
Bruce Evans
39e4376ba7 Removed unused #includes. 1998-02-20 13:11:54 +00:00
Bill Fenner
92f57d003c Revert sosend() to its behavior from 4.3-Tahoe and before: if
so_error is set, clear it before returning it.  The behavior
introduced in 4.3-Reno (to not clear so_error) causes potentially
transient errors (e.g.  ECONNREFUSED if the other end hasn't opened
its socket yet) to be permanent on connected datagram sockets that
are only used for writing.

(soreceive() clears so_error before returning it, as does
getsockopt(...,SO_ERROR,...).)

Submitted by:	Van Jacobson <van@ee.lbl.gov>, via a comment in the vat sources.
1998-02-19 19:38:20 +00:00
Eivind Eklund
d94f38ace2 Add HW_WDOG to LINT, and turn it into a new-style option. 1998-02-16 23:57:49 +00:00
Poul-Henning Kamp
15b7a47005 A bunch of nits from bde. 1998-02-15 14:15:21 +00:00
Poul-Henning Kamp
c7c9a816a1 Add a nanotime() function so that we can start to use this call. 1998-02-15 13:55:06 +00:00
Poul-Henning Kamp
9ada5a50f3 unifdef -UEXT_CLOCK fdef -UEXT_CLOCK, it is irrelevant.
Fix a couple of nits from bde while here anyway.
1998-02-15 13:50:12 +00:00
Bruce Evans
338ca54caf Fixed an aliasing bug. It was too easy to defeat the check for moving
or shrinking an open partition (by changing the label for a compatibility
slice while partitions on the corresponding real slice are open, or vice
versa).
1998-02-15 05:41:31 +00:00
John Dyson
9f24f214c3 Make the rootdir handling more consistent. Now, processes always
have a root vnode associated with them, and no special checks for
the null case are needed.
Submitted by:	terry@freebsd.org
1998-02-15 04:17:09 +00:00
Eivind Eklund
be41061b8b Make NO_LKM a new-style option.
Forgotten by:	dima
1998-02-12 18:02:07 +00:00
Dima Ruban
bd45deefaa I'm not sure whether this is a correct way to do it,
but here's a new kernel option - "NO_LKM"

If anyone has better ideas - please let me know.
1998-02-11 20:47:55 +00:00
David Greenman
c78ab18a81 Fix a && that should be an &.
Reviewed by:	"John S. Dyson" <dyson@FreeBSD.ORG>
Submitted by:	jwd@unx.sas.com (John W. DeBoskey)
1998-02-11 20:06:48 +00:00
Eivind Eklund
e9fe146bb4 Include SIMPLELOCK_DEBUG functions even if SMP if compiling LINT; give
an error for the combination if _not_ compiling LINT.
1998-02-11 00:05:26 +00:00
Eivind Eklund
cfa5673efd Move include of <machine/ipl.h> inside ifndef SMP where it is used, to
avoid getting 'unused include file' warnings in the SMP case.
1998-02-10 17:10:23 +00:00
KATO Takenori
1b11919b2b Fixed vnode interlock handling.
Reviewed by:	Bruce Evans <bde@zeta.org.au>
            	Tor Egge <Tor.Egge@idi.ntnu.no>
1998-02-10 02:54:24 +00:00
Eivind Eklund
303b270b0a Staticize. 1998-02-09 06:11:36 +00:00
John Dyson
3217023e7c Fix a problem with vn_lock in fsync. 1998-02-08 01:41:33 +00:00
KATO Takenori
16e3b0b67a When the vp is lcoked, vget() calls vfs_object_create() with
waslocked = TRUE.  This change may fix lockmgr panic in umapfs/nullfs.

PR:		5634
Reviewed by:	"John S. Dyson" <toor@dyson.iquest.net>
Suggested by:	Bruce Evans <bde@zeta.org.au>
1998-02-07 08:44:31 +00:00
Eivind Eklund
0b08f5f737 Back out DIAGNOSTIC changes. 1998-02-06 12:14:30 +00:00
John Dyson
95461b450d 1) Start using a cleaner and more consistant page allocator instead
of the various ad-hoc schemes.
2)	When bringing in UPAGES, the pmap code needs to do another vm_page_lookup.
3)	When appropriate, set the PG_A or PG_M bits a-priori to both avoid some
	processor errata, and to minimize redundant processor updating of page
	tables.
4)	Modify pmap_protect so that it can only remove permissions (as it
	originally supported.)  The additional capability is not needed.
5)	Streamline read-only to read-write page mappings.
6)	For pmap_copy_page, don't enable write mapping for source page.
7)	Correct and clean-up pmap_incore.
8)	Cluster initial kern_exec pagin.
9)	Removal of some minor lint from kern_malloc.
10)	Correct some ioopt code.
11)	Remove some dead code from the MI swapout routine.
12)	Correct vm_object_deallocate (to remove backing_object ref.)
13)	Fix dead object handling, that had problems under heavy memory load.
14)	Add minor vm_page_lookup improvements.
15)	Some pages are not in objects, and make sure that the vm_page.c can
	properly support such pages.
16)	Add some more page deficit handling.
17)	Some minor code readability improvements.
1998-02-05 03:32:49 +00:00
Eivind Eklund
47cfdb166d Turn DIAGNOSTIC into a new-style option. 1998-02-04 22:34:03 +00:00