Commit Graph

2527 Commits

Author SHA1 Message Date
John Baldwin
02cd7c3cf2 - Remove asleep(), await(), and M_ASLEEP.
- Callers of asleep() and await() have been converted to calling tsleep().
  The only caller outside of M_ASLEEP was the ata driver, which called both
  asleep() and await() with spl-raised, so there was no need for the
  asleep() and await() pair.  M_ASLEEP was unused.

Reviewed by:	jasone, peter
2001-08-10 06:56:12 +00:00
John Baldwin
8ec48c6dbf - Remove asleep(), await(), and M_ASLEEP.
- Callers of asleep() and await() have been converted to calling tsleep().
  The only caller outside of M_ASLEEP was the ata driver, which called both
  asleep() and await() with spl-raised, so there was no need for the
  asleep() and await() pair.  M_ASLEEP was unused.

Reviewed by:	jasone, peter
2001-08-10 06:37:05 +00:00
John Baldwin
c37c2d03b8 Bump MAXCOMLEN from 16 to 19 to take advantage of 32-bit alignment.
Approved by:	peter, jasone
2001-08-10 05:34:48 +00:00
Peter Wemm
99ab2d5dca *** empty log message *** 2001-08-09 01:21:58 +00:00
Peter Wemm
2aca0c28d3 Zap 'ptrace(PT_READ_U, ...)' and 'ptrace(PT_WRITE_U, ...)' since they
are a really nasty interface that should have been killed long ago
when 'ptrace(PT_[SG]ETREGS' etc came along.  The entity that they
operate on (struct user) will not be around much longer since it
is part-per-process and part-per-thread in a post-KSE world.

gdb does not actually use this except for the obscure 'info udot'
command which does a hexdump of as much of the child's 'struct user'
as it can get.  It carries its own #defines so it doesn't break
compiles.
2001-08-08 05:25:15 +00:00
Dima Dorfman
26a0ee75c6 Introduce a force option, MD_FORCE, that instructs the driver to
bypass some extra anti-foot-shooting measures.  Currently, its only
effect is to allow detaching a device while it's still open (e.g.,
mounted).  This is useful for testing how the system reacts to a disk
suddenly going away, which can happen with some removeable media.

At this point, the force option is only checked on detach, so it
would've been possible to allow the option to be passed with the
MDIOCDETACH operation.  This was not done to allow the possibility of
having the force flag influence other tests in the future, which may
not necessarily deal with detaching the device.

Reviewed by:	sobomax
Approved by:	phk
2001-08-07 19:23:16 +00:00
Scott Long
d047ecf50b Make AAC_COMPAT_LINUX optional once again.
Submitted by:	julian
2001-08-06 19:40:47 +00:00
John Baldwin
bcbde237d3 Get the order of the sys/_lock.h and sys/_mutex.h headers right. 2001-08-06 14:25:35 +00:00
Scott Long
fb0c27d7e2 Put the linux compat ioctl interface on death row. Add FreeBSD
definitions of all of the ioctls, plus round out all ioctl definitions to
match what exists for linux.  Allow ioctls to be called through either the
native or linux interface, though no apps exist (yet) that can take
advantage of native calling.
2001-08-06 04:34:47 +00:00
Scott Long
74e818733c Missed this one in my 80-column sweep. 2001-08-06 03:52:40 +00:00
Thomas Moestl
938a4e5c0c Export the head structure for the device statistics STAILQ in
sys/devicestat.h, so that the queue can be walked in crashdumps using
libkvm.
2001-08-04 18:02:47 +00:00
Warner Losh
c7021493ba Make the fmt arguments to make_dev and make_dev_alias const char *.
Approved on IRC as long as it didn't cause a large number of warnings by: phk

MFC After: 700 hours
2001-08-02 20:35:35 +00:00
Kazutaka YOKOTA
6d1699583d Add some definitions. Their actual support will be added
to video drivers later.
2001-08-02 11:17:38 +00:00
Kazutaka YOKOTA
4866e2769a Refine cursor type/shape control escape sequences and
ioctls. We can now add ve, vi and vs capabilities to
cons25 in termcap.

Discussed with and tested by: ache
2001-08-02 08:30:40 +00:00
Bosko Milekic
bb6f838c79 Move CPU_ABSENT() macro to smp.h, where it belongs anyway. It will be
defined to 0 in the non-SMP case, which very much makes sense as it
permits its usage in per-CPU initialization loops (for an example, check
out subr_mbuf.c).
  Further, on a UP system, make mb_alloc always use the first per-CPU
container, regardless of cpuid (i.e. remove reliability on cpuid in the
UP case).

Requested by: alfred
2001-08-01 00:54:00 +00:00
John Baldwin
36c2e9feb4 Apply the cluebat to myself and undo the await() -> mawait() rename. The
asleep() and await() functions split the functionality of msleep() up into
two halves.  Only the asleep() half (which is what puts the process on the
sleep queue) actually needs the lock usually passed to msleep() held to
prevent lost wakeups.  await() does not need the lock held, so the lock
can be released prior to calling await() and does not need to be passed in
to the await() function.  Typical usage of these functions would be as
follows:

        mtx_lock(&foo_mtx);
        ... do stuff ...
        asleep(&foo_cond, PRIxx, "foowt", hz);
        ...
        mtx_unlock&foo_mtx);
        ...
        await(-1, -1);

Inspired by:	dillon on the couch at Usenix
2001-07-31 22:06:56 +00:00
Jake Burkholder
9ceb184438 Machine dependent ifdefs for sparc64. 2001-07-31 04:14:30 +00:00
Peter Wemm
ee342e1bf1 Move param.c out of the conf directory and make it fully dynamic.
Tunables are now derived at boot time from maxusers.  ie: change maxusers
via a tunable and all the derivative settings change.  You can change
the other tunables individually as well.  Even hz etc is tunable.
2001-07-26 23:04:03 +00:00
Bosko Milekic
49f854f926 - Do not handle the per-CPU containers in mbuf code as though the cpuids
were indices in a dense array. The cpuids are a sparse set and treat
  them as such, setting up containers only for CPUs activated during
  mb_init().

- Fix netstat(1) and systat(1) to treat the per-CPU stats area as a sparse
  map, in accordance with the above.

This allows us to properly boot with certain CPUs disactivated. However, if
we later decide to re-activate said CPUs, we will barf until we decide to
implement CPU spinon/spinoff callback hooks to allow for said CPUs' per-CPU
containers to get configured on their activation.

Reported by: mjacob
Partially (sys/ diffs) Submitted by: mjacob
2001-07-26 18:47:46 +00:00
Maxim Sobolev
aa7cc2322b Move definition of structure used in CONS_SCRSHOT ioctl in front of definition
of ioctl itself, like we have for all other ioctl's in this file.

MFC after:	2 weeks
2001-07-26 14:24:53 +00:00
Peter Pentchev
7ca4d05f34 Make dynamic sysctl entries start at 0x100, not decimal 100 - there are
static entries with oid's over 100, and defining enough dynamic entries
causes an overlap.

Move the "magic" value 0x100 into <sys/sysctl.h> where it belongs.

PR:		29131
Submitted by:	"Alexander N. Kabaev" <kabaev@mail.ru>
Reviewed by:	-arch, -audit
MFC after:	2 weeks
2001-07-25 17:21:18 +00:00
Dima Dorfman
101f105db2 Move the kernel stuff out of snoop.h. It was only there because some
of the snp* functions needed to be called from tty.c, which is no
longer the case.
2001-07-25 14:47:56 +00:00
David E. O'Brien
d09d8a1ed9 Remind people to document bumps in the Porter's Handbook. 2001-07-23 17:51:02 +00:00
Assar Westerlund
8cfdf32239 add prototype for dosetrlimit 2001-07-22 00:21:19 +00:00
Jonathan Lemon
5f5c2e958f Introduce EVFILT_TIMER, which allows a process to establish an
arbitrary number of timers, both oneshot and periodic.

Repeatedly reminded to commit by: jayanth
Reviewed by: peter (a while back)
2001-07-19 18:34:40 +00:00
Poul-Henning Kamp
344d118fd4 Add printf format checking to sbuf_printf()
Submitted by:	Harti Brandt <brandt@fokus.gmd.de
2001-07-18 15:58:06 +00:00
Dima Dorfman
ac60b28d35 Keep track of all "struct snoop"'s so that snp_modevent can fail with
EBUSY if there's a device still open.
2001-07-18 13:39:43 +00:00
Poul-Henning Kamp
dd8efa4aa4 Add missing () around macro argument in cv_waitq_empty()
Submitted by:	Harti Brandt <brandt@fokus.gmd.de>
2001-07-17 08:25:24 +00:00
Peter Wemm
815d14ddab Use a fixed type for times in on-disk structures for ufs rather than
something that could potentially change like time_t.
2001-07-16 00:55:27 +00:00
Kazutaka YOKOTA
9a3a173bd3 - Define a convenience macro ISTTYOPEN().
- Slightly refine screen saver logic.

No functional change.
MFC after:	2 weeks
2001-07-12 11:43:29 +00:00
Peter Wemm
51ae779a7e Bump param, for SSE support and include file impact (<machine/pcb.h>) 2001-07-12 11:42:47 +00:00
Dag-Erling Smørgrav
f0cc1c6f81 Constify the fstype argument to vfs_mount(). This eliminates at least one
"call discards qualifier" warning (in sys/compat/linux/linux_file.c).
2001-07-09 19:11:51 +00:00
Julian Elischer
50bc553e3c Small whitespace fix.
BDE'd by: BDE
2001-07-08 04:58:29 +00:00
Julian Elischer
0b1ae8097d A set of changes to reduce the number of include files the kernel
takes from /usr/include. I cannot check them on alpha.. (will try beast)

Briefly looked at by: Warner Losh <imp@harmony.village.org>
2001-07-08 04:56:07 +00:00
Jake Burkholder
d652b3d918 Backout mwakeup, etc. 2001-07-06 01:16:43 +00:00
Robert Watson
a0f75161f9 o Replace calls to p_can(..., P_CAN_xxx) with calls to p_canxxx().
The p_can(...) construct was a premature (and, it turns out,
  awkward) abstraction.  The individual calls to p_canxxx() better
  reflect differences between the inter-process authorization checks,
  such as differing checks based on the type of signal.  This has
  a side effect of improving code readability.
o Replace direct credential authorization checks in ktrace() with
  invocation of p_candebug(), while maintaining the special case
  check of KTR_ROOT.  This allows ktrace() to "play more nicely"
  with new mandatory access control schemes, as well as making its
  authorization checks consistent with other "debugging class"
  checks.
o Eliminate "privused" construct for p_can*() calls which allowed the
  caller to determine if privilege was required for successful
  evaluation of the access control check.  This primitive is currently
  unused, and as such, serves only to complicate the API.

Approved by:	({procfs,linprocfs} changes) des
Obtained from:	TrustedBSD Project
2001-07-05 17:10:46 +00:00
Dima Dorfman
4c9cf96ea0 Spelling police: extention -> extension in a comment. 2001-07-05 08:52:40 +00:00
Matthew Dillon
6d03d577a5 Reorg vm_page.c into vm_page.c, vm_pageq.c, and vm_contig.c (for contigmalloc).
Also removed some spl's and added some VM mutexes, but they are not actually
used yet, so this commit does not really make any operational changes
to the system.

vm_page.c relates to vm_page_t manipulation, including high level deactivation,
activation, etc...  vm_pageq.c relates to finding free pages and aquiring
exclusive access to a page queue (exclusivity part not yet implemented).
And the world still builds... :-)
2001-07-04 23:27:09 +00:00
Matthew Dillon
7b9673fa28 cleanup: GIANT macros, rename DEPRECIATE to DEPRECATE
Move p_giant_optional to proc zero'd section
Remove (old) XXX zfree comment in pipe code
2001-07-04 17:11:03 +00:00
Matthew Dillon
0cddd8f023 With Alfred's permission, remove vm_mtx in favor of a fine-grained approach
(this commit is just the first stage).  Also add various GIANT_ macros to
formalize the removal of Giant, making it easy to test in a more piecemeal
fashion. These macros will allow us to test fine-grained locks to a degree
before removing Giant, and also after, and to remove Giant in a piecemeal
fashion via sysctl's on those subsystems which the authors believe can
operate without Giant.
2001-07-04 16:20:28 +00:00
Jake Burkholder
9316aed2ef Implement mwakeup, mwakeup_one, cv_signal_drop and cv_broadcast_drop.
These take an additional mutex argument, which is dropped before any
processes are made runnable.  This can avoid contention on the mutex
if the processes would immediately acquire it, and is done in such a
way that wakeups will not be lost.

Reviewed by:	jhb
2001-07-04 00:32:50 +00:00
Dag-Erling Smørgrav
2687c8741b Constify the format string.
Submitted by:	Mike Barcroft <mike@q9media.com>
2001-07-03 21:46:43 +00:00
Brooks Davis
30aad87d72 Add kernel infrastructure for network device cloning.
Reviewed by:	ru, ume
Obtained from:	NetBSD
MFC after:	1 week
2001-07-02 20:49:25 +00:00
John Baldwin
aa3cefd06c Remove the p_spinlocks spin lock count that was obsoleted by the
per-CPU spinlocks list.
2001-06-30 03:35:22 +00:00
John Baldwin
7aa7260e4a Move ast() and userret() to sys/kern/subr_trap.c now that they are MI. 2001-06-29 19:51:37 +00:00
Joerg Wunsch
5937458054 Define BIO_CMD{1,2}, available for local hacks, similar to the already
existing BIO_FLAG{1,2}.  To be used in the fdc(4) driver soon.
2001-06-29 15:21:28 +00:00
John Baldwin
6be523bca7 Add a new MI pointer to the process' trapframe p_frame instead of using
various differently named pointers buried under p_md.

Reviewed by:	jake (in principle)
2001-06-29 11:10:41 +00:00
Jonathan Lemon
83a1e72922 Correct comment: so_q -> so_comp, so_q0 -> so_incomp.
Submitted by: Adagio Vangogh <adagio_v@pacbell.net>
2001-06-28 04:39:49 +00:00
John Baldwin
5f36700a32 - Add trylock variants of shared and exclusive locks.
- The sx assertions don't actually need the internal sx mutex lock, so
  don't bother doing so.
- Add a new assertion SX_ASSERT_LOCKED() that asserts that either a
  shared or exclusive lock should be held.  This assertion should be used
  instead of SX_ASSERT_SLOCKED() in almost all cases.
- Adjust some KASSERT()'s to include file and line information.
- Use the new witness_assert() function in the WITNESS case for sx slock
  asserts to verify that the current thread actually owns a slock.
2001-06-27 06:39:37 +00:00
John Baldwin
04297fe609 - Add a new witness_assert() to perform arbitrary locking assertions.
- Clean up the KTR tracepoints to be slighlty more consistent and useful
- Fix a bug in WITNESS where we would recurse indefinitely and blow the
  stack when acquiring Giant after sleeping with a sleepable lock held.

Reported by:	tanimura (3)
2001-06-27 06:27:29 +00:00
Joerg Wunsch
250300ebb0 Implement a new ioctl command for floppies: FD_READID
Reads one sector ID field from a given track.  Useful for analyzing
floppies.
2001-06-26 22:16:30 +00:00
John Baldwin
1715f07da3 - Replace the unused KTR_IDLELOOP trace class with a new KTR_WITNESS trace
class to trace witness events.
- Make the ktr_cpu field of ktr_entry be a standard field rather than one
  present only in the KTR_EXTEND case.
- Move the default definition of KTR_ENTRIES from sys/ktr.h to
  kern/kern_ktr.c.  It has not been needed in the header file since KTR
  was un-inlined.
- Minor include cleanup in kern/kern_ktr.c.
- Fiddle with the ktr_cpumask in ktr_tracepoint() to disable KTR events
  on the current CPU while we are processing an event.
- Set the current CPU inside of the critical section to ensure we don't
  migrate CPU's after the critical section but before we set the CPU.
2001-06-25 23:09:31 +00:00
David E. O'Brien
73325acbbc People wanted this bumped for the Bzip2 import. 2001-06-22 22:38:12 +00:00
Matt Jacob
d4d79f279c Make hostid an unsigned long (matches kern_mib.c change)
PR:		kern/21132
MFC after:	1 month
2001-06-22 19:51:45 +00:00
Bosko Milekic
08442f8a82 Introduce numerous SMP friendly changes to the mbuf allocator. Namely,
introduce a modified allocation mechanism for mbufs and mbuf clusters; one
which can scale under SMP and which offers the possibility of resource
reclamation to be implemented in the future. Notable advantages:

 o Reduce contention for SMP by offering per-CPU pools and locks.
 o Better use of data cache due to per-CPU pools.
 o Much less code cache pollution due to excessively large allocation macros.
 o Framework for `grouping' objects from same page together so as to be able
   to possibly free wired-down pages back to the system if they are no longer
   needed by the network stacks.

 Additional things changed with this addition:

  - Moved some mbuf specific declarations and initializations from
    sys/conf/param.c into mbuf-specific code where they belong.
  - m_getclr() has been renamed to m_get_clrd() because the old name is really
    confusing. m_getclr() HAS been preserved though and is defined to the new
    name. No tree sweep has been done "to change the interface," as the old
    name will continue to be supported and is not depracated. The change was
    merely done because m_getclr() sounds too much like "m_get a cluster."
  - TEMPORARILY disabled mbtypes statistics displaying in netstat(1) and
    systat(1) (see TODO below).
  - Fixed systat(1) to display number of "free mbufs" based on new per-CPU
    stat structures.
  - Fixed netstat(1) to display new per-CPU stats based on sysctl-exported
    per-CPU stat structures. All infos are fetched via sysctl.

 TODO (in order of priority):

  - Re-enable mbtypes statistics in both netstat(1) and systat(1) after
    introducing an SMP friendly way to collect the mbtypes stats under the
    already introduced per-CPU locks (i.e. hopefully don't use atomic() - it
    seems too costly for a mere stat update, especially when other locks are
    already present).
  - Optionally have systat(1) display not only "total free mbufs" but also
    "total free mbufs per CPU pool."
  - Fix minor length-fetching issues in netstat(1) related to recently
    re-enabled option to read mbuf stats from a core file.
  - Move reference counters at least for mbuf clusters into an unused portion
    of the cluster itself, to save space and need to allocate a counter.
  - Look into introducing resource freeing possibly from a kproc.

Reviewed by (in parts): jlemon, jake, silby, terry
Tested by: jlemon (Intel & Alpha), mjacob (Intel & Alpha)
Preliminary performance measurements: jlemon (and me, obviously)
URL: http://people.freebsd.org/~bmilekic/mb_alloc/
2001-06-22 06:35:32 +00:00
Brian Somers
4a48819fbc Add DIGIIO_SETALTPIN and DIGIIO_GETALTPIN ioctl values 2001-06-20 14:51:58 +00:00
Andrey A. Chernov
531918e6e8 Add B921600 (yes, some serial ports can do this, but generic sio not support
them yet)
2001-06-20 03:26:41 +00:00
Dag-Erling Smørgrav
4ee5ccb607 Constify the module name. This silences a few warnings ("initialization
discards qualifier"), and probably adds a few where module names are
compared to or passed as non-const strings.

Not-objected-to-by:	bde
2001-06-19 21:40:14 +00:00
Jim Pirzyk
7b32dc4ee4 Added CTLTYPE_{UINT|LONG|ULONG} types.
PR:		kern/21132
Reviewed by:	no objections to by -arch
MFC after:	1 month
2001-06-18 21:07:04 +00:00
Garrett Wollman
37336173d3 After one too many PRs on the subject, bite the bullet and define IOV_MAX
and its associated constants.  Implement _SC_IOV_MAX in the usual way.
Be a bit sloppy about the namespace question; this should get cleared up
in time for 5.0.

MFC after:	1 month
2001-06-18 20:24:54 +00:00
Brian Somers
09dbb40410 Add linker_reference_module().
This function loads a module if required, otherwise bumps the reference
count -- the opposite of linker_file_unload().
2001-06-18 15:09:33 +00:00
Brian Somers
3f99abb8b6 Credit John Prince and Eric Hernes for their work. 2001-06-18 15:02:33 +00:00
Peter Wemm
5a280d9cd1 Add INTR_TYPE_AV so that we can get to the PI_AV priority in the ithread
handlers.  This is beneficial since it means that pcm's MPSAFE handler
can get run before things that will block on Giant in the shared irq
case.
2001-06-16 22:42:19 +00:00
Alexander Langer
90f76f2df0 Fix "alignemnt" typo. 2001-06-16 15:28:28 +00:00
Andrey A. Chernov
e566a4211b Bump FreeBSD_version to indicate locale renaming 2001-06-15 22:40:10 +00:00
Peter Wemm
b93c3c5ed6 Fix some warnings in kern_environment.c. Make the getenv*() family
take a const 'name', since they dont modify anything.
159: warning: passing arg 1 of `getenv_int' discards qualifiers...
167: warning: passing arg 1 of `getenv' discards qualifiers from pointer..
2001-06-15 07:29:17 +00:00
Hajimu UMEMOTO
1d752b5e0f fix recursive mtx_lock() call.
Submitted by:	mjacob
2001-06-13 18:53:53 +00:00
Peter Wemm
f41325db5f With this commit, I hereby pronounce gensetdefs past its use-by date.
Replace the a.out emulation of 'struct linker_set' with something
a little more flexible.  <sys/linker_set.h> now provides macros for
accessing elements and completely hides the implementation.

The linker_set.h macros have been on the back burner in various
forms since 1998 and has ideas and code from Mike Smith (SET_FOREACH()),
John Polstra (ELF clue) and myself (cleaned up API and the conversion
of the rest of the kernel to use it).

The macros declare a strongly typed set.  They return elements with the
type that you declare the set with, rather than a generic void *.

For ELF, we use the magic ld symbols (__start_<setname> and
__stop_<setname>).  Thanks to Richard Henderson <rth@redhat.com> for the
trick about how to force ld to provide them for kld's.

For a.out, we use the old linker_set struct.

NOTE: the item lists are no longer null terminated.  This is why
the code impact is high in certain areas.

The runtime linker has a new method to find the linker set
boundaries depending on which backend format is in use.

linker sets are still module/kld unfriendly and should never be used
for anything that may be modular one day.

Reviewed by:	eivind
2001-06-13 10:58:39 +00:00
Hajimu UMEMOTO
75f5bc80a1 FreeBSD already avoided namespace pollution (rev.1.45).
Submitted by:	bde
2001-06-12 11:12:23 +00:00
Peter Wemm
2398f0cd1d Hints overhaul:
- Replace some very poorly thought out API hacks that should have been
  fixed a long while ago.
- Provide some much more flexible search functions (resource_find_*())
- Use strings for storage instead of an outgrowth of the rather
  inconvenient temporary ioconf table from config().  We already had a
  fallback to using strings before malloc/vm was running anyway.
2001-06-12 09:40:04 +00:00
Dag-Erling Smørgrav
336d3d2ab3 Say one thing, do the other... nextpid -> lastpid 2001-06-11 23:00:35 +00:00
Dag-Erling Smørgrav
8f7e4eb568 Rename nextpid to lastpid and externalize it. 2001-06-11 21:54:19 +00:00
Hajimu UMEMOTO
aae773e460 Nuke wrongly introduced experimental stuff during KAME merge.
Following changed was made by previous commit:

  - add a pointer to struct mauxtag.  two integer was too restrictive.
  - add m_aux_{add,find}2.
  - make sure to nuke mbuf pointed to m_aux.
2001-06-11 20:14:45 +00:00
Dag-Erling Smørgrav
b0def2b548 Add sbuf_copyin(). Also add 'b' variants of sbuf_{cat,copyin,cpy}() which
ignore NUL bytes in the source string.
2001-06-11 17:05:52 +00:00
Hajimu UMEMOTO
3384154590 Sync with recent KAME.
This work was based on kame-20010528-freebsd43-snap.tgz and some
critical problem after the snap was out were fixed.
There are many many changes since last KAME merge.

TODO:
  - The definitions of SADB_* in sys/net/pfkeyv2.h are still different
    from RFC2407/IANA assignment because of binary compatibility
    issue.  It should be fixed under 5-CURRENT.
  - ip6po_m member of struct ip6_pktopts is no longer used.  But, it
    is still there because of binary compatibility issue.  It should
    be removed under 5-CURRENT.

Reviewed by:	itojun
Obtained from:	KAME
MFC after:	3 weeks
2001-06-11 12:39:29 +00:00
Dag-Erling Smørgrav
d647935801 sbuf_new(9) now returns a struct sbuf * instead of an int. If the caller
does not provide a struct sbuf, sbuf_new(9) will allocate one and return
a pointer to it.
2001-06-10 15:48:04 +00:00
Dag-Erling Smørgrav
09f8f5b259 Explicitly initialize the reference count to 0. This silences a warning
with -Wno-uninitialized.
2001-06-10 10:54:29 +00:00
Benno Rice
fb49f5492e Changes to sys/ includes to support PowerPC.
Reviewed by:	obrien, dfr
2001-06-10 02:08:36 +00:00
Brian Somers
d7a8aebd9b Bump __FreeBSD_version to reflect machine/ioctl_fd.c moving to sys/fdcio.h 2001-06-09 09:09:45 +00:00
Peter Wemm
0978669829 "Fix" the previous initial attempt at fixing TUNABLE_INT(). This time
around, use a common function for looking up and extracting the tunables
from the kernel environment.  This saves duplicating the same function
over and over again.  This way typically has an overhead of 8 bytes + the
path string, versus about 26 bytes + the path string.
2001-06-08 05:24:21 +00:00
Peter Wemm
4422746fdf Back out part of my previous commit. This was a last minute change
and I botched testing.  This is a perfect example of how NOT to do
this sort of thing. :-(
2001-06-07 03:17:26 +00:00
Peter Wemm
81930014ef Make the TUNABLE_*() macros look and behave more consistantly like the
SYSCTL_*() macros.  TUNABLE_INT_DECL() was an odd name because it didn't
actually declare the int, which is what the name suggests it would do.
2001-06-06 22:17:08 +00:00
Dima Dorfman
f09f49f136 Style and cosmetic cleanups. This driver is now reasonably stlye(9)
compliant.  All the variable definitions and function names are
reasonably consistent, and the functions which should be static (i.e.,
all of them) are.  Other assorted fixes were made.  The majority of
the delta is indentation fixes.

Partially reviewed by:	bde
2001-06-05 05:00:17 +00:00
Dima Dorfman
22cf0fb34d Unstaticize l_nullioctl; it is needed elsewhere (like in tty_snoop.c).
Suggested by:	bde
2001-06-04 23:30:47 +00:00
John Baldwin
75fd8a701b Add a new psuedo-KTR trace level KTR_ALL which is a mask of all currently
used KTR levels.
2001-06-04 18:24:07 +00:00
Dima Dorfman
87826386e0 Remove unused includes, use *min() inline functions rather than a
home-grown macro, rewrite a confusing conditional in snpdevtotty(),
and change ibuf to 512 bytes instead of 1024 bytes in dsnwrite().

Reviewed by:	bde
2001-06-03 05:17:39 +00:00
David E. O'Brien
41843d3cde Support GCC 3.0 2001-06-02 17:35:50 +00:00
Thomas Moestl
d279178df7 Clean up the code exporting interrupt statistics via sysctl a bit:
- move the sysctl code to kern_intr.c
- do not use INTRCNT_COUNT, but rather eintrcnt - intrcnt to determine
  the length of the intrcnt array
- move the declarations of intrnames, eintrnames, intrcnt and eintrcnt
  from machine-dependent include files to sys/interrupt.h
- remove the hw.nintr sysctl, it is not needed.
- fix various style bugs

Requested by:	bde
Reviewed by:	bde (some time ago)
2001-06-01 13:23:28 +00:00
David E. O'Brien
240ef84277 Back out jesper's 2001/05/31 14:58:11 PDT commit. It does not compile. 2001-06-01 09:51:14 +00:00
Jesper Skriver
cf7e5998d7 Move the definition of NMBCLUSTERS from src/sys/kern/uipc_mbuf.c
to <sys/param.h>, so it's available to src/sys/netinet/ip_input.c

MFC after:	1 week
2001-05-31 21:58:10 +00:00
Poul-Henning Kamp
753d49786e Remove MFS 2001-05-29 20:39:47 +00:00
Andrey A. Chernov
27aa48fd5b Add B460800 define 2001-05-29 17:13:18 +00:00
Andrey A. Chernov
819e4fd5e0 Add more high speeds
Fix tabs
2001-05-29 17:06:32 +00:00
Poul-Henning Kamp
2ac1b1f47a Remove unused d_parms_t typedef
Spotted by:	grog
2001-05-29 08:02:31 +00:00
Dima Dorfman
b3c2cf17ee Add a CONS_CLRHIST ioctl which instructs syscons to clear the history
(scroll-back) buffer.

PR:		27616
Reviewed by:	ru
2001-05-27 00:45:59 +00:00
Robert Watson
a892504995 o Include file to provide prototypes for regression testing-specific
system calls/et al.  Not much in there just yet, but will most likely
  grow.

Obtained from:	TrustedBSD Project
2001-05-26 15:37:25 +00:00
Poul-Henning Kamp
3344c5a17e Create a general facility for making dev_t's depend on another
dev_t.  The dev_depends(dev_t, dev_t) function is for tying them
to each other.

When destroy_dev() is called on a dev_t, all dev_t's depending
on it will also be destroyed (depth first order).

Rewrite the make_dev_alias() to use this dependency facility.

kern/subr_disk.c:
Make the disk mini-layer use dependencies to make sure all
relevant dev_t's are removed when the disk disappears.

Make the disk mini-layer precreate some magic sub devices
which the disk/slice/label code expects to be there.

kern/subr_disklabel.c:
Remove some now unneeded variables.

kern/subr_diskmbr.c:
Remove some ancient, commented out code.

kern/subr_diskslice.c:
Minor cleanup.  Use name from dev_t instead of dsname()
2001-05-26 08:27:58 +00:00
Robert Watson
b1fc0ec1a7 o Merge contents of struct pcred into struct ucred. Specifically, add the
real uid, saved uid, real gid, and saved gid to ucred, as well as the
  pcred->pc_uidinfo, which was associated with the real uid, only rename
  it to cr_ruidinfo so as not to conflict with cr_uidinfo, which
  corresponds to the effective uid.
o Remove p_cred from struct proc; add p_ucred to struct proc, replacing
  original macro that pointed.
  p->p_ucred to p->p_cred->pc_ucred.
o Universally update code so that it makes use of ucred instead of pcred,
  p->p_ucred instead of p->p_pcred, cr_ruidinfo instead of p_uidinfo,
  cr_{r,sv}{u,g}id instead of p_*, etc.
o Remove pcred0 and its initialization from init_main.c; initialize
  cr_ruidinfo there.
o Restruction many credential modification chunks to always crdup while
  we figure out locking and optimizations; generally speaking, this
  means moving to a structure like this:
        newcred = crdup(oldcred);
        ...
        p->p_ucred = newcred;
        crfree(oldcred);
  It's not race-free, but better than nothing.  There are also races
  in sys_process.c, all inter-process authorization, fork, exec, and
  exit.
o Remove sigio->sio_ruid since sigio->sio_ucred now contains the ruid;
  remove comments indicating that the old arrangement was a problem.
o Restructure exec1() a little to use newcred/oldcred arrangement, and
  use improved uid management primitives.
o Clean up exit1() so as to do less work in credential cleanup due to
  pcred removal.
o Clean up fork1() so as to do less work in credential cleanup and
  allocation.
o Clean up ktrcanset() to take into account changes, and move to using
  suser_xxx() instead of performing a direct uid==0 comparision.
o Improve commenting in various kern_prot.c credential modification
  calls to better document current behavior.  In a couple of places,
  current behavior is a little questionable and we need to check
  POSIX.1 to make sure it's "right".  More commenting work still
  remains to be done.
o Update credential management calls, such as crfree(), to take into
  account new ruidinfo reference.
o Modify or add the following uid and gid helper routines:
      change_euid()
      change_egid()
      change_ruid()
      change_rgid()
      change_svuid()
      change_svgid()
  In each case, the call now acts on a credential not a process, and as
  such no longer requires more complicated process locking/etc.  They
  now assume the caller will do any necessary allocation of an
  exclusive credential reference.  Each is commented to document its
  reference requirements.
o CANSIGIO() is simplified to require only credentials, not processes
  and pcreds.
o Remove lots of (p_pcred==NULL) checks.
o Add an XXX to authorization code in nfs_lock.c, since it's
  questionable, and needs to be considered carefully.
o Simplify posix4 authorization code to require only credentials, not
  processes and pcreds.  Note that this authorization, as well as
  CANSIGIO(), needs to be updated to use the p_cansignal() and
  p_cansched() centralized authorization routines, as they currently
  do not take into account some desirable restrictions that are handled
  by the centralized routines, as well as being inconsistent with other
  similar authorization instances.
o Update libkvm to take these changes into account.

Obtained from:	TrustedBSD Project
Reviewed by:	green, bde, jhb, freebsd-arch, freebsd-audit
2001-05-25 16:59:11 +00:00
Poul-Henning Kamp
9d9bdb3dc5 Restrict even further what parts of <sys/conf.h> can be seen from
userland.
2001-05-24 09:33:08 +00:00
Matthew Dillon
ac8f990bde This patch implements O_DIRECT about 80% of the way. It takes a patchset
Tor created a while ago, removes the raw I/O piece (that has cache coherency
problems), and adds a buffer cache / VM freeing piece.

Essentially this patch causes O_DIRECT I/O to not be left in the cache, but
does not prevent it from going through the cache, hence the 80%.  For
the last 20% we need a method by which the I/O can be issued directly to
buffer supplied by the user process and bypass the buffer cache entirely,
but still maintain cache coherency.

I also have the code working under -stable but the changes made to sys/file.h
may not be MFCable, so an MFC is not on the table yet.

Submitted by:	tegge, dillon
2001-05-24 07:22:27 +00:00