Commit Graph

48 Commits

Author SHA1 Message Date
Matthew Dillon
ecde8f7c29 Get rid of the twisted MFREE() macro entirely.
Reviewed by:	dg, bmilekic
MFC after:	3 days
2002-02-05 02:00:56 +00:00
Julian Elischer
b40ce4165d KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
Bosko Milekic
2a0c503e7a * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT.
This is because calls with M_WAIT (now M_TRYWAIT) may not wait
  forever when nothing is available for allocation, and may end up
  returning NULL. Hopefully we now communicate more of the right thing
  to developers and make it very clear that it's necessary to check whether
  calls with M_(TRY)WAIT also resulted in a failed allocation.
  M_TRYWAIT basically means "try harder, block if necessary, but don't
  necessarily wait forever." The time spent blocking is tunable with
  the kern.ipc.mbuf_wait sysctl.
  M_WAIT is now deprecated but still defined for the next little while.

* Fix a typo in a comment in mbuf.h

* Fix some code that was actually passing the mbuf subsystem's M_WAIT to
  malloc(). Made it pass M_WAITOK instead. If we were ever to redefine the
  value of the M_WAIT flag, this could have became a big problem.
2000-12-21 21:44:31 +00:00
Bruce Evans
1bcd237fec Removed unused includes (garbage left over/created by the SMPng megacommit). 2000-09-26 17:48:55 +00:00
Jason Evans
0384fff8c5 Major update to the way synchronization is done in the kernel. Highlights
include:

* Mutual exclusion is used instead of spl*().  See mutex(9).  (Note: The
  alpha port is still in transition and currently uses both.)

* Per-CPU idle processes.

* Interrupts are run in their own separate kernel threads and can be
  preempted (i386 only).

Partially contributed by:	BSDi (BSD/OS)
Submissions by (at least):	cp, dfr, dillon, grog, jake, jhb, sheldonh
2000-09-07 01:33:02 +00:00
Peter Wemm
cef8bf096f Remove some #if NFOO > 0 that are always true because of config rules. 2000-01-29 16:56:24 +00:00
Poul-Henning Kamp
ae8e1d08d7 This patch clears the way for removing a number of tty related
fields in struct cdevsw:

        d_stop          moved to struct tty.
        d_reset         already unused.
        d_devtotty      linkage now provided by dev_t->si_tty.

These fields will be removed from struct cdevsw together with
d_params and d_maxio Real Soon Now.

The changes in this patch consist of:

        initialize dev->si_tty in *_open()
        initialize tty->t_stop
        remove devtotty functions
        rename ttpoll to ttypoll
        a few adjustments to these changes in the generic code
        a bump of __FreeBSD_version
        add a couple of FreeBSD tags
1999-09-25 16:21:39 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Poul-Henning Kamp
4be2eb8c49 I got tired of seeing all the cdevsw[major(foo)] all over the place.
Made a new (inline) function devsw(dev_t dev) and substituted it.

Changed to the BDEV variant to this format as well: bdevsw(dev_t dev)

DEVFS will eventually benefit from this change too.
1999-05-08 06:40:31 +00:00
Poul-Henning Kamp
f711d546d2 Suser() simplification:
1:
  s/suser/suser_xxx/

2:
  Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
  s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.
1999-04-27 11:18:52 +00:00
Peter Wemm
8e203b83a7 Undo #undef KERNEL hack for vnode.h to avoid vnode_if.h.
XXX It probably makes sense to have a flag for bsd.kern.mk to avoid these
    rules.
XXX IO_NDELAY seems to be the main reason for it, when used in a cdevsw
    read or write "flag" context.  Perhaps a redundant declaration
    somewhere like sys/conf.h might help remove the need for vnode.h in
    these device drivers in the first place.
1999-01-17 20:53:48 +00:00
Peter Wemm
aa8859a838 Missing splx(). 1998-06-20 16:39:35 +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
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
c1087c1324 Support compiling with `gcc -ansi'. 1998-04-15 17:47:40 +00:00
Poul-Henning Kamp
98b9590ef3 Use getmicrotime() for if_lastchange, 10msec is plenty precision. 1998-04-06 11:43:12 +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
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
a4daaa09f2 Implement the spirit but not the letter of Terrys hot-char patch.
The differences Terrys patch and this patch are:
 * Remove a lot of un-needed comments.
 * Don't put l_hotchar at the front of stuct linesw, there is no need to.
 * Use the #defines for the hotchar in the SLIP and PPP line disciplines
1998-02-13 12:46:28 +00:00
Bruce Evans
239b7b699e Use ENOIOCTL instead of -1 (= ERESTART) for tty ioctls that are
not handled at a particular level.  This fixes mainly restarting
of interrupted TIOCDRAINs and TIOCSETA{W,F}s.
1997-12-06 13:25:01 +00:00
Bruce Evans
42d263adde Don't test for conflicting combinations of PPP_FILTER/BPFILTER here.
Testing in if_ppp.c is good enough.

Added comments about bogus #includes and #defines.

Removed unused #includes.

Don't depend on gcc's misfeature of rewriting short args in old-style
function definitions to match wrong prototypes.  I just changed the
function definition to match the prototype, since this is easy to
verify automatically (it causes no changes in the object code), but
it breaks K&R1 support and doesn't fix the pessimal type.
1997-11-18 14:08:51 +00:00
Peter Wemm
7a387305bb Convert PPP_FILTER to an option, like PPP_BSDCOMP and PPP_DEFLATE.
It requires bpf, I'll note this in LINT.
1997-10-18 01:20:28 +00:00
Peter Wemm
c871745648 Better fix for the bpf dependency that doesn't have such a large impact
on the code and pppd in userland.  PPP_FILTER is meant to be an option (or
negatable option).
1997-10-18 00:56:23 +00:00
Peter Wemm
b476a2db23 Try out PPP_FILTER 1997-10-10 11:57:43 +00:00
Justin T. Gibbs
6c951b4441 Update for new callout interface. 1997-09-21 22:02:25 +00:00
Peter Wemm
080ea4d851 Some fixes from Bruce:
- don't access time (a volatile) via struct copy.
  - merge botches
  - note risk of CCOUNT accessing *tp outside spltty().

Submitted by:  bde
1997-08-22 11:34:08 +00:00
Peter Wemm
2d4b190bc5 Update kernel parts of pppd from 2.2.0 to 2.3.0. I've yet to look at the
2.3.0 -> 2.3.1 changes, but I seem to recall that there are certain
"issues" with 2.3.1 (I'm not sure if it's just pppd or the whole lot, I
am not quite that far).  The present pppd seems to work with it just fine
for the time being.

Among the changes are that zlib (aka LZ77 aka deflate aka gzip) compression
is implemented as well as the original compress(1) LZW style.
1997-08-19 14:10:50 +00:00
Brian Somers
3bb3b0463e Fix this damn mbuf with a negative m_len. It turns
out to be a problem with VJ header compression.
davidg spotted this in usr.sbin/ppp/slcompress.c
a while ago, but I believe gave the wrong reasons -
it's too easy to reproduce !  The only scenario that
I've been able to reproduce the problem under is when
m_len is *exactly* 40 !  So go figure !

PR:		3749
Submitted elsewhere by:	davidg
Obtained from: usr.sbin/ppp/slcompress.c
1997-06-22 02:19:53 +00:00
Brian Somers
443e72b45a Protect against garbage mbufs in pppstart.
Remove previous hack in pppfcs().

This is still not the correct solution.  We shouldn't
have any incorrect mbufs.  This patch does however make
pppd/natd work (rather than jamming the interface).
1997-06-18 02:50:40 +00:00
Brian Somers
510cc2e46a Prevent panic with garbage mbuf.
Submitted by:	 Lenzi, Sergio <lenzi@bsi.com.br>
1997-06-09 04:13:48 +00:00
Doug Rabson
683523378c Move interrupt handling code from isa.c to a new file. This should make
isa.c (slightly) more portable and will make my life developing the really
portable version much easier.

Reviewed by:	peter, fsmp
1997-06-02 08:19:06 +00:00
Peter Wemm
a353ca89cd Bruce mentioned to me that Paul Traina had noticed that the ppp_tty
interrupt mask hackery wasn't happening when being modloaded via the
if_ppp lkm.  It seems that the lkm system doesn't particularly like having
two sets of load/unload/etc routines. :-]  This really should be fixed
by having a seperate if_ppp and ppp_tty lkm, but that requires that ppp_tty
is loaded after if_ppp, and needs to be able to link with symbols in
if_ppp.  This gets messy, it is a better task for the in-kernel linker.
(if_ppp is generic, ppp_tty is a tty-specific bottom end for if_ppp, it's
 not _too_ hard to have another "provider" (such as a hdlc sync card)
 connected to if_ppp)
1997-05-31 10:13:46 +00:00
Peter Wemm
69defe0533 don't refer to SWI_*_MASK, it's not SMP/UP kernel portable for the lkm. 1997-05-31 09:49:35 +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
3ac4d1ef0c Don't #include <sys/fcntl.h> in <sys/file.h> if KERNEL is defined.
Fixed everything that depended on getting fcntl.h stuff from the wrong
place.  Most things don't depend on file.h stuff at all.
1997-03-23 03:37:54 +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
Satoshi Asami
1225e2435d Second phase of merge, get rid of more machine-independent-dependencies.
Get rid of pc98/pc98/pc98_device.h.

Submitted by:	The FreeBSD(98) Development Team
1996-09-03 10:24:29 +00:00
Satoshi Asami
91eb961985 Re-sync with the state of PC98 world. This will be the last commit before
we start merging things in earnest...

Submitted by:	The FreeBSD(98) Development Team
1996-08-30 10:43:14 +00:00
Satoshi Asami
ad63a118b2 The Great PC98 Merge.
All new code is "#ifdef PC98"ed so this should make no difference to
PC/AT (and its clones) users.

Ok'd by:	core
Submitted by:	FreeBSD(98) development team
1996-06-14 11:02:28 +00:00
Nate Williams
a136e00402 Only print out the new masks if bootverbose is set. 1996-06-12 20:07:09 +00:00
Gary Palmer
a614bfe060 Since the updates to ifnet.if_lastchange are so rare (relatively
speaking), go for the extra accuracy and call microtime() to get
the current time.

Pointed Out By:		bde
1996-06-12 19:24:03 +00:00
Gary Palmer
e39a0280cb Change the use if ifnet.if_lastchange to be more in line with
SNMP requirements. Update description of ifnet.if_lastchange in if.h
to indicate this.
1996-06-10 23:07:36 +00:00
Poul-Henning Kamp
1ce9bf88c3 Use new printf features rather than local kludges. 1996-01-24 21:12:23 +00:00
Poul-Henning Kamp
f708ef1b9e Another mega commit to staticize things. 1995-12-14 09:55:16 +00:00
Peter Wemm
f2d642f969 Re-Zap unused variables in their new location.. :-) 1995-11-01 00:58:43 +00:00
Peter Wemm
45e829f5a5 Merge/update ppp-2.2 kernel parts onto mainline.
Note that the old if_ppp.c has been split in half into if_ppp.c and
ppp_tty.c
1995-10-31 20:24:14 +00:00
Peter Wemm
8511566984 Initial revision 1995-10-31 20:07:32 +00:00