1
0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-24 11:29:10 +00:00
Commit Graph

25129 Commits

Author SHA1 Message Date
Robert Watson
8f0644a765 o Introduce a README file describing briefly how to use extended
attributes, in the style of FFS README files for soft updates and
  snapshots.

Obtained from:	TrustedBSD Project
2001-04-03 17:31:36 +00:00
Seigo Tanimura
6c2b22e90e Again initialize a mutex well, then lock it.
PR:		kern/26188
Submitted by:	Jim Bloom <bloom@acm.org>
2001-04-03 05:15:58 +00:00
Bosko Milekic
4b8ae40a7c - Change the msleep()s to condition variables.
The mbuf and mcluster free lists now each "own" a condition variable,
  m_starved.

- Clean up minor indentention issues in sys/mbuf.h caused by previous
  commit.
2001-04-03 04:50:13 +00:00
Robert Watson
bfe2c6ad72 o Change the default from using IO_SYNC on EA set and delete operations
to not using IO_SYNC.  Expose a sysctl (debug.ufs_extattr_sync) for
  enabling the use of IO_SYNC.

    - Use of IO_SYNC substantially degrades ACL performance when a
      default ACL is set on a directory, as there are four synchronous
      writes initiated to define both supporting EAs for new
      sub-directories, and to set the data; two for new files.  Later, this
      may be optimized to two writes for sub-directories, one for new
      files.

    - IO_SYNC does not substantially improve consistency properties due
      to the poor consistency properties of existing permissions (which
      ACLs are a superset of), due to interaction with soft updates,
      and due to differences in handling consistency for data and file
      system meta-data.

    - In macro-benchmarks, this reduces the overhead of setting default
      ACLs down to the same overhead as enabling ACLs on a file system
      and not using them.  Enabling ACLs still introduces a small
      overhead (I measure 7% on a -j 2 buildworld with pre-allocated
      EA backing store, but this is not rigorous testing, nor in any way
      optimized).

    - The sysctl will probably change to another administration method
      (or at least, a better name) in the near future, but consistency
      properties of EAs are still being worked out.  The toggle is defined
      right now to allow easier performance analysis and exploration
      of possible guarantees.

Obtained from:	TrustedBSD Project
2001-04-03 04:09:53 +00:00
Alfred Perlstein
5ea487f34d Use only one mutex for the entire mbuf subsystem.
Don't use atomic operations for the stats updating, instead protect
the counts with the mbuf mutex.  Most twiddling of the stats was
done right before or after releasing a mutex.  By doing this we
reduce the number of locked ops needed as well as allow a sysctl
to gain a consitant view of the entire stats structure.

In the future...

  This will allow us to chain common mbuf operations that would
  normally need to aquire/release 2 or 3 of the locks to build an
  mbuf with a cluster or external data attached into a single op
  requiring only one lock.

  Simplify the per-cpu locks that are planned.

There's also some if (1) code that should check if the "how"
operation specifies blocking/non-blocking behavior, we _could_ make
it so that we hold onto the mutex through calls into kmem_alloc
when non-blocking requests are made, but for safety reasons we
currently drop and reaquire the mutex around the calls.

Also, note that calling kmem_alloc is rare and only happens during
a shortage so drop/re-getting the mutex will not be a common
occurance.

Remove some #define's that seemed to obfuscate the code to me.

Remove an extranious comment.

Remove an XXX, including mutex.h isn't a crime.

Reviewed by: bmilekic
2001-04-03 03:15:11 +00:00
John Baldwin
5b3047d59f Change stop() to require the sched_lock as well as p's process lock to
avoid silly lock contention on sched_lock since in 2 out of the 3 places
that we call stop(), we get sched_lock right after calling it and we were
locking sched_lock inside of stop() anyways.
2001-04-03 01:39:23 +00:00
Brian Somers
fb45b6d4e3 Allow MOD_UNLOADs of if_tun, and handle event handler registration
failures in MOD_LOAD.

Dodge duplicate make_dev() calls by (ab)using dev->si_drv2 to
remember if we created the device node via a dev_clone callback
before the d_open call.
2001-04-03 01:22:15 +00:00
Paul Saab
05ba6e6a36 Fix probing on the alpha. It still causes the alpha to panic during
attach.
2001-04-03 00:26:34 +00:00
John Baldwin
606e1d6816 Remove bogus block device major now that bdev majors are gone. 2001-04-02 23:36:36 +00:00
Brian Somers
2c514a3101 If ifpromisc() fails the SIOCSIFFLAGS ioctl, put ifp->if_flags
back the way we found them.
2001-04-02 21:49:40 +00:00
Brian Somers
9c36ab644e Return 0 and do nothing when we get a SIOCSIFFLAGS.
Without this, ifpromisc() always fails (after setting the IFF_PROMISC
bit in ifp->if_flags) and bpf never bothers to turn promiscuous mode off.

PR:	20188
2001-04-02 21:49:18 +00:00
John Baldwin
1333047621 - Move the second stop() of process 'p' in issignal() to be after we send
SIGCHLD to our parent process.  Otherwise, we could block while obtaining
  the process lock for our parent process and switch out while we were
  in SSTOP.  Even worse, when we try to resume from the mutex being blocked
  on our p_stat will be SRUN, not SSTOP.
- Fix a comment above stop() to indicate that it requires that the proc lock
  be held, not a proctree lock.

Reported by:	markm
Sleuthing by:	jake
2001-04-02 17:26:51 +00:00
Nick Hibma
899a73c0a6 Regen. 2001-04-02 13:12:15 +00:00
Nick Hibma
d8ee57ce7d Add Agate Q-Drive.
Submitted by:	Ian Cartwright <ian351c@home.com>
2001-04-02 13:11:59 +00:00
Nick Hibma
59a42a13d5 Regen. 2001-04-02 13:02:36 +00:00
Nick Hibma
0a191eddb4 Sync with NetBSD usbdevs 2001-04-02 13:02:17 +00:00
Warner Losh
581a68a232 Add support for MODULES_OVERRIDE. This is a list of modules to build
instead of all of them.  You can put this in /etc/make.conf or in
makeoptions.

Reviewed by: arch@

# docs to follow.
2001-04-02 08:52:05 +00:00
Robert Watson
aad65d6f79 o Correct an ACL implementation bug that could result in a system panic
under heavy use when default ACLs were bgin inherited by new files
  or directories.  This is done by removing a bug in default ACL
  reading, and improving error handling for this failure case:

    - Move the setting of the buffer length (len) variable to above the
      ACL type (ap->a_type) switch rather than having it only for
      ACL_TYPE_ACCESS.  Otherwise, the len variable is unitialized in
      the ACL_TYPE_DEFAULT case, which generally worked right, but could
      result in failure.

    - Add a check for a short/long read of the ACL_TYPE_DEFAULT type from
      the underlying EA, resulting in EPERM rather than passing a
      potentially corrupted ACL back to the caller (resulting "cleaner"
      failures if the EA is damaged: right now, the caller will almost
      always panic in the presence of a corrupted EA).  This code is similar
      to code in the ACL_TYPE_ACCESS handling in the previous switch case.

    - While I'm fixing this code, remove a redundant bzero() of the ACL
      reader buffer; it need only be initialized above the acl_type
      switch.

Obtained from:	TrustedBSD Project
2001-04-02 01:02:32 +00:00
Scott Long
0001afe2f5 Make an attempt to get the asr driver to compile on Alpha by fixing some i386
specific bogons.  Compile with -O0, as anything higher gives the compiler
a fit.  No idea if this driver will actually work on Alpha, though.
2001-04-01 08:33:01 +00:00
Alfred Perlstein
8cf6ffcf6d make code use strxxx() calls
Glanced at by: imp
2001-04-01 07:36:28 +00:00
Yoshihiro Takahashi
ce6c4d9c99 Correct typo. 2001-04-01 07:15:16 +00:00
Yoshihiro Takahashi
dcf81d70de Merged from sys/i386/i386/bioscall.s revision 1.9 and 1.10. 2001-04-01 07:08:13 +00:00
Alan Cox
07be3b5e76 Regen after adding linux_sched_get_priority_max() and
linux_sched_get_priority_min().
2001-04-01 06:43:09 +00:00
Yoshihiro Takahashi
43c35a2e4f Merged from sys/i386/isa/clock.c revision 1.171. 2001-04-01 06:41:47 +00:00
Yoshihiro Takahashi
0e319a247e Merged from sys/i386/i386/machdep.c revision 1.446. 2001-04-01 06:40:45 +00:00
Yoshihiro Takahashi
fb8a224ea1 Merged from sys/dev/aic/aic_isa.c revision 1.7. 2001-04-01 06:37:59 +00:00
Alan Cox
21c8cdfb96 Add linux_sched_get_priority_max() and linux_sched_get_priority_min(): The
policy parameter requires translation.
2001-04-01 06:37:40 +00:00
Yoshihiro Takahashi
3ed49ce8da Merged from sys/i386/apm/apm.c revision 1.121. 2001-04-01 06:34:12 +00:00
Yoshihiro Takahashi
2cfe5c8141 Merged from sys/conf/options.i386 revision 1.144. 2001-04-01 06:31:25 +00:00
Yoshihiro Takahashi
be95518a81 Merged from sys/conf/files.i386 revision 1.350 and 1.354. 2001-04-01 06:30:28 +00:00
Justin T. Gibbs
b5f51cd7b9 Change ahc_update_pending_scbs() so that it safe to be called
even if the controller is not paused.  This prevents SCB list
corruption that was introduced in the last checkin.
2001-04-01 00:00:09 +00:00
Robert Watson
685574864e o Part two of introduction of extattr_{delete,get,set}_fd() system calls,
regenerate necessary automatically-generated code.

Obtained from:	TrustedBSD Project
2001-03-31 16:21:19 +00:00
Robert Watson
fec605c882 o Introduce extattr_{delete,get,set}_fd() to allow extended attribute
operations on file descriptors, which complement the existing set of
  calls, extattr_{delete,get,set}_file() which act on paths.  In doing
  so, restructure the system call implementation such that the two sets
  of functions share most of the relevant code, rather than duplicating
  it.  This pushes the vnode locking into the shared code, but keeps
  the copying in of some arguments in the system call code.  Allowing
  access via file descriptors reduces the opportunity for race
  conditions when managing extended attributes.

Obtained from:	TrustedBSD Project
2001-03-31 16:20:05 +00:00
Murray Stokely
22a6b4127a comment typo: subsytem -> subsystem
PR:		26219
Submitted by:	Andre <andre@akademie3000.de>, chern@osd.bsdi.com
2001-03-31 04:34:15 +00:00
Andrew Gallatin
bb193d2a6b Recognize a few newer cpus (pca57, ev67 & ev68) and update systypes to
include "CUSCO" and "Eiger" while I'm at it.
2001-03-30 22:04:08 +00:00
Jesper Skriver
a174ba729c Change the previous commit to be in style(9)
Reviewed by:	jhb
2001-03-30 16:05:50 +00:00
Robert Watson
f8e6ab29c2 o Restructure privilege check associated with process visibility for
ps_showallprocs such that if superuser is present to override process
  hiding, the search falls through [to success].  When additional
  restrictions are placed on process visibility, such as MAC, new clauses
  will be placed above the return(0).

Obtained from:	TrustedBSD Project
2001-03-29 22:59:44 +00:00
David E. O'Brien
563dd74008 Reduce the emasculation of bounds_check_with_label() by one line, so we
propagate a bio error condition to the caller and above.
2001-03-29 20:26:12 +00:00
David E. O'Brien
083c3fbb6f Removed the ``#if 0'' that turned bounds_check_with_label() into worse
than a NOP.  bounds_check_with_label() would return -1 yet NOT set any
of the bio flags to show an error.  This meant the caller would not
properly see that bounds_check_with_label() did not do any work.  This
prevented newfs(8) from being able to write a file system on any partition
other than `c' on a `ccd'.

The logs of this file do not tell _why_ bounds_check_with_label() was
emasculated.  Nor are there any `XXX' comments.  So we'll unemasculated
it, and see what breaks.

Submitted by:	gallatin
2001-03-29 20:18:45 +00:00
Bill Paul
5f4d50b544 Fix a couple style nits, no code changes. Turn one magic number into
a #defined constant, wrap a few long lines, etc... Also remove stupid
'all your base are belong to us' joke from comment that I don't really
care to see immortalized in the source tree.
2001-03-29 19:11:45 +00:00
Brian Feldman
a75c49591f Since -CURRENT requires module dependencies to actually be correct for
linking to work, have cue(4) depend on usb so it actually works.
2001-03-29 18:14:55 +00:00
John Baldwin
0316f71d56 - Various style fixes.
- Fix a silly bug so that we return the actual error code if a procfs
  attach fails rather than always returning 0.

Reported by:	bde
2001-03-29 18:10:46 +00:00
Orion Hodson
417f47c4d5 - Added suspend/resume support.
- Added 4 speaker enable to initialization sequence.

- Removed delays between register pokes which appear to aggravate a
  problem this card has sampling at 44.1kHz.  With any form of delay,
  skew relative to system clock at 44.1kHz is usually in range 0-25%
  (now 0-3%).  No other rates exhibit this problem.

- Changed structs cmi_* to sc_*.

Approved by:    Cameron Grant <gandalf@vilnya.demon.co.uk>
2001-03-29 15:36:31 +00:00
Andrew Gallatin
6a5a4d0a80 fix a number of printf format string warnings inside DEBUG ifdefs 2001-03-29 15:05:08 +00:00
Jesper Skriver
6c00471f28 Fix building NEWCARD again, by including
sys/types.h and sys/lock.h in pccbb.c, as
jhb noted in rev 1.12 of src/share/man/man9/mutex.9
2001-03-29 10:23:45 +00:00
Justin T. Gibbs
b95de6dafd aic7770.c:
aic7xxx_pci.c:
	Enable board generation of interrupts only once our handler is
	in place and all other setup has occurred.

aic7xxx.c:
	More conversion of data types to ahc_* names.  tmode_tstate and
	tmode_lstate are the latest victims.

	Clean up the check condition path by branching early rather
	than indenting a giant block of code.

	Add support for target mode initiated sync negotiation.
	The code has been tested by forcing the feature on for
	all devices, but for the moment is left inaccesible until
	a decent mechanism for controlling the behavior is complete.
	Implementing this feature required the removal of the
	old "target message request" mechanism.  The old method
	required setting one of the 16 bit fields to initiate
	negotiation with a particular target.  This had the nice
	effect of being easy to change the request and have it
	effect the next command.  We now set the MK_MESSAGE bit
	on any new command when negotiation is required.  When
	the negotiation is successful, we walk through and clean
	up the bit on any pending commands.  Since we have to walk
	the commands to reset the SCSI syncrate values so no additional
	work is required.  The only drawback of this approach is that
	the negotiation is deferred until the next command is queued to
	the controller.  On the plus side, we regain two bytes of
	sequencer scratch ram and 6 sequencer instructions.

	When cleaning up a target mode instance, never remove the
	"master" target mode state object.  The master contains
	all of the saved SEEPROM settings that control things like
	transfer negotiations.  This data will be cloned as the
	defaults if a target mode instance is re-instantiated.

	Correct a bug in ahc_set_width().  We neglected to update
	the pending scbs to reflect the new parameters.  Since
	wide negotiation is almost always followed by sync
	negotiation it is doubtful that this had any real
	effect.

	When in the target role, don't complain about
	"Target Initiated" negotiation requests when an initiator
	negotiates with us.

	Defer enabling board interrupts until after ahc_intr_enable()
	is called.

	Pull all info that used to be in ahc_timeout for the FreeBSD
	OSM into ahc_dump_card_state().  This info should be printed
	out on all platforms.

aic7xxx.h:
	Add the SCB_AUTO_NEGOITATE scb flag.  This allows us to
	discern the reason the MK_MESSAGE flag is set in the hscb
	control byte.  We only want to clear MK_MESSAGE in
	ahc_update_pending_scbs() if the MK_MESSAGE was set due
	to an auto transfer negotiation.

	Add the auto_negotiate bitfield for each tstate so that
	behavior can be controlled for each of our enabled SCSI
	IDs.

	Use a bus interrupt handler vector in our softc rather
	than hard coding the PCI interrupt handler.  This makes
	it easier to build the different bus attachments to
	the aic7xxx driver as modules.

aic7xxx.reg:
	Remove the TARGET_MSG_REQUEST definition for sequencer ram.

aic7xxx.seq:
	Fix a few target mode bugs:

		o If MK_MESSAGE is set in an SCB, transition to
		  message in phase and notify the kernel so that
		  message delivery can occur.  This is currently
		  only used for target mode initiated transfer
		  negotiation.

		o Allow a continue target I/O to compile without
		  executing a status phase or disconnecting.  If
		  we have not been granted the disconnect privledge
		  but this transfer is larger than MAXPHYS, it may
		  take several CTIOs to get the job done.

	Remove the tests of the TARGET_MSG_REQUEST field in scratch ram.

aic7xxx_freebsd.c:
	Add support for CTIOs that don't disconnect.  We now defer
	the clearing of our pending target state until we see a
	CTIO for that device that has completed sucessfully.

	Be sure to return early if we are in a target only role
	and see an initiator only CCB type in our action routine.

	If a CTIO has the CAM_DIS_DISCONNECT flag set, propogate
	this flag to the SCB.  This flag has no effect if we've
	been asked to deliver status as well.  We will complete
	the command and release the bus in that case.

	Handle the new auto_negotiate field in the tstate correctly.

	Make sure that SCBs for "immediate" (i.e. to continue a non
	disconnected transaction) CTIO requests get a proper mapping
	in the SCB lookup table.  Without this, we'll complain when
	the transaction completes.

	Update ahc_timeout() to reflect the changes to ahc_dump_card_state().

aic7xxx_inline.h:
	Use ahc->bus_intr rather than ahc_pci_intr.
2001-03-29 00:36:35 +00:00
Peter Wemm
32533d5ff9 Regenerate correctly. 2001-03-29 00:06:16 +00:00
Peter Wemm
e665ecb55c Hint: usbdevs_data.h and usbdevs.h are marked:
* THIS FILE IS AUTOMATICALLY GENERATED.  DO NOT EDIT.
Put the Epson 1240 scanner device in the correct place.
2001-03-29 00:05:51 +00:00
Dag-Erling Smørgrav
d67fe1bd2f Prepare for pseudofs. 2001-03-28 22:21:07 +00:00
Robert Watson
ed6397209d o introduce u_cansee(), which performs access control checks between
two subject ucreds.  Unlike p_cansee(), u_cansee() doesn't have
  process lock requirements, only valid ucred reference requirements,
  so is prefered as process locking improves.  For now, back p_cansee()
  into u_cansee(), but eventually p_cansee() will go away.

Reviewed by:	jhb, tmm
Obtained from:	TrustedBSD Project
2001-03-28 20:50:15 +00:00