Commit Graph

43 Commits

Author SHA1 Message Date
Warner Losh
9454b2d864 /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 23:35:40 +00:00
Poul-Henning Kamp
672c05d49c Preparation commit for the tty cleanups that will follow in the near
future:

rename ttyopen() -> tty_open() and ttyclose() -> tty_close().

We need the ttyopen() and ttyclose() for the new generic cdevsw
functions for tty devices in order to have consistent naming.
2004-07-15 20:47:41 +00:00
Poul-Henning Kamp
68f2d20b70 Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
Poul-Henning Kamp
55d1d7034f Don't attempt to inline large functions mb_alloc() and mb_free(),
it more than doubles the text size of this file.

GCC has wisely ignored us on this previously
2003-07-22 10:24:41 +00:00
David E. O'Brien
677b542ea2 Use __FBSDID(). 2003-06-11 00:56:59 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Jens Schweikhardt
9d5abbddbf Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.
2003-01-01 18:49:04 +00:00
Alfred Perlstein
4d77a549fe Remove __P. 2002-03-19 21:25:46 +00:00
Yaroslav Tykhiy
ae5fa19aa9 Make cblock_alloc_cblocks() spell its own name
correctly in its warning message.

PR: kern/7693
2001-03-27 10:21:26 +00:00
Jeroen Ruigrok van der Werven
1a6e52d0e9 Fix typo: seperate -> separate.
Seperate does not exist in the english language.
2001-02-06 11:21:58 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Peter Wemm
00858ccd88 Quiet warnings on an Alpha. CBSIZE has long type and causes the other
ints to promote to long.
1999-07-01 19:46:36 +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
c1087c1324 Support compiling with `gcc -ansi'. 1998-04-15 17:47:40 +00:00
Poul-Henning Kamp
a1c995b626 Last major round (Unless Bruce thinks of somthing :-) of malloc changes.
Distribute all but the most fundamental malloc types.  This time I also
remembered the trick to making things static:  Put "static" in front of
them.

A couple of finer points by:	bde
1997-10-12 20:26:33 +00:00
Bruce Evans
fce002fdef Don't include <sys/ioctl.h> in the kernel. Stage 1: don't include
it when it is not used.  In most cases, the reasons for including it
went away when the special ioctl headers became self-sufficient.
1997-03-24 11:25:10 +00:00
Bruce Evans
c68fa33937 Try a no-wait malloc first in clist_alloc_cblocks(). If this fails, then
complain and blunder on.

Should be in 2.2, preferably with a better fix.
1997-03-05 16:45:01 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Bruce Evans
831031ce00 Attached simple external ddb commands show rtc', show pgrpdump'
and `show cbstat'.  The pgrpdump code was previously controlled by
`#ifdef DEBUG'.
1996-09-14 10:53:48 +00:00
David Greenman
39f70d4545 Killed sections 3 and 4 of my copyright as I don't agree with it (I believe
it to be unnecessarily restrictive). For tty_subr.c, update to my standard
copyright.
1996-04-08 01:22:00 +00:00
Garrett Wollman
0e41ee3037 Convert DDB to new-style option. 1996-01-04 21:13:23 +00:00
Bruce Evans
d14122ea44 Fixed staticization of DDB functions. 1995-12-14 23:01:51 +00:00
Poul-Henning Kamp
87b6de2b76 A Major staticize sweep. Generates a couple of warnings that I'll deal
with later.
A number of unused vars removed.
A number of unused procs removed or #ifdefed.
1995-12-14 08:32:45 +00:00
Poul-Henning Kamp
48cee07655 Put cbstat() under #ifdef DDB 1995-11-20 12:15:45 +00:00
Peter Wemm
0839e0de72 Make putc and b_to_q deal with clists with no reserved blocks in a more
civilised manner than panicing.  This only happens as a result of another
state botch somewhere else, eg: from a tty driver calling putc or b_to_q
on a closed device.  Apparently, it's also been implicated in a panic
with a status (^T) event on ptys.

This change should pretty well be in it's final form now.
1995-11-02 08:37:22 +00:00
Peter Wemm
a317bc2c36 Clean up the previous commit I did on this file.
The Jury has not reached a verdict yet on this approach - a better fix
may be thought of, but for now this works.
1995-11-01 15:59:55 +00:00
Peter Wemm
e8c8f201ec Make a putc()/b_to_q() to a clist that hasn't had cblocks reserved
non-fatal.  I've make it return an appropriate error to the caller instead
of panic()ing.

Handling an error condition is inherently more friendly than exploding
the kernel.. :-)  The new behavior is a little closer to traditional
clists, potentially making porting a little simpler.

Suggested by: bde (many months ago, I've been using this for a while..)
1995-10-31 19:00:00 +00:00
Bruce Evans
12bc45a8df Fix clist limits. They were usually one too low. E.g., for a limit of
TTYHOG = 1024 bytes, 10 cblocks were reserved.  This was thought to
provide 10 * CBSIZE = 1080 bytes of buffering, but if the head pointer
is at the end of a cblock, then it only provides 1 + 9 * CBSIZE = 973
bytes of buffering.  This caused serious data loss for ptys because the
flow control is deterministic and requires at least TTYHOG bytes of
buffering.  For ttys, if input flow control is used then there is
usually enough slop in the high watermark to avoid problems, and if
input flow control isn't used then a limit of 973 is not much different
from a limit of 1024.

Add prototypes.

Continue cleaning up new init stuff.
1995-10-25 17:59:58 +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
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
270d5e9f91 Optimize the zeroing of quotes. b_to_q() was always taking about 20% of
its time zeroing quotes although quotes are not very common.  E.g., there
are never any quotes in output queues.
1995-07-11 19:39:54 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
Bruce Evans
d1a795a280 Fix cblock starvation bugs by reserving enough cblocks for minimal
operation of each clist.  Limit the growth of each clist.  Clists
can only grow larger than the reserved minimum if there are free
cblocks in a shared pool.  The size of this pool is now fixed
(this could be improved).  The reserved and maximum sizes are more
carefully allocated for slip and ppp, depending on the mtu.  A maximum
MTU of 16384 is now enforced for ppp.
1994-11-26 19:24:13 +00:00
Bruce Evans
a6a21d9edf Don't attempt to free null cblocks. There may be less to free than
normal due to cblock resource starvation or malloc() failing when
the device is opened.
1994-10-30 19:43:49 +00:00
Poul-Henning Kamp
bb56ec4a05 While in the real world, I had a bad case of being swapped out for a lot of
cycles.  While waiting there I added a lot of the extra ()'s I have, (I have
never used LISP to any extent).  So I compiled the kernel with -Wall and
shut up a lot of "suggest you add ()'s", removed a bunch of unused var's
and added a couple of declarations here and there.  Having a lap-top is
highly recommended.  My kernel still runs, yell at me if you kernel breaks.
1994-09-25 19:34:02 +00:00
David Greenman
b18394cb09 Removed prototype for cblock_alloc_cblocks (and moved it into tty.h). 1994-09-13 16:02:20 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
David Greenman
329cfeccd5 Don't panic if we can't malloc a cblock...just print a console message
and be happy.
1994-05-29 07:50:11 +00:00
David Greenman
b6504a8d7c Completed version of my clist management code. Requires hooks in tty.c
for adding and removing cblocks from the cfreelist queue (to give them
back to malloc). I'll add those tomorrow.
1994-05-27 12:28:05 +00:00
Rodney W. Grimes
26f9a76710 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
Rodney W. Grimes
df8bae1de4 BSD 4.4 Lite Kernel Sources 1994-05-24 10:09:53 +00:00