Commit Graph

61167 Commits

Author SHA1 Message Date
Takanori Watanabe
0967107190 Fix Typo.
Pointed out by: ru
2006-10-31 07:22:24 +00:00
Matt Jacob
fa9ed86506 The first of 3 major steps to move the CAM layer forward to using
the CAM_NEW_TRAN_CODE that has been in the tree for some years now.

This first step consists solely of adding to or correcting
CAM_NEW_TRAN_CODE pieces in the kernel source tree such
that a both a GENERIC (at least on i386) and a LINT build
with CAM_NEW_TRAN_CODE as an option will compile correctly
and run (at least with some the h/w I have).

After a short settle time, the other pieces (making
CAM_NEW_TRAN_CODE the default and updating libcam
and camcontrol) will be brought in.

This will be an incompatible change in that the size of structures
related to XPT_PATH_INQ and XPT_{GET,SET}_TRAN_SETTINGS change
in both size and content. However, basic system operation and
basic system utilities work well enough with this change.

Reviewed by:	freebsd-scsi and specific stakeholders
2006-10-31 05:53:29 +00:00
Scott Long
9df92bda76 Fix a typo in the device ID table that prevented 5708S chips from being
detected.

Submitted by: pyun
2006-10-31 03:28:25 +00:00
Kevin Lo
127ce9bca0 Add support for Option GT 3G/3G quad datacard in ubsa.
Approved by: cognet
2006-10-31 02:27:24 +00:00
Olivier Houchard
c3248b4002 Include <sys/types.h>, to get definition for uint32_t.
Submitted by:	David Sharp
2006-10-30 23:23:00 +00:00
Warner Losh
a12fb4e632 Assign start to the value we were able to allocate and use that to
write out the BAR.  Otherwise, we were trying to shift a 32-bit
quantity on 32-bit platforms.  Also, 'start' check sanity to where it
is known.
2006-10-30 22:46:33 +00:00
Marius Strobl
a1610d83b8 In the replacement text of the __bswapN_const() macros encapsulate the
argument in parentheses so these macros are safe to use and invocations
with an expression as the argument like __bswap32_const(42 << 23 | 13)
work as expected. Additionally, mask all the individually shifted bytes
as appropriate so the bytes which exceed the width of the respective
__bswapN_const() macro in invocations like __bswap16_const(0xdead600d)
are ignored like it's the case with the corresponding __bswapN_var()
function.

MFC after:	3 days
2006-10-30 21:50:11 +00:00
Warner Losh
b0a2d4b8a9 More fully support 64-bit bars. Prior to this commit, we supported
only those bars that had addresses assigned by the BIOS and where the
bridges were properly programmed.  Now even unprogrammed ones work.
This was needed for sun4v.  We still only implement up to 2GB memory
ranges, even for 64-bit bars.  PCI standards at least through 2.2 say
that this is the max (or 1GB is, I only know it is < 32bits).

o Always define pci_addr_t as uint64_t.  A pci address is always 64-bits,
  but some hosts can't address all of them.
o Preserve the upper half of the 64-bit word during resource probing.
o Test to make sure that 64-bit values can fit in a u_long (true on some
  platforms, but not others).  Don't use those that can't.
o minor pedantry about data sizes.
o Better bridge resource reporting in bootverbose case.
o Minor formatting changes to cope with different data types on different
  platforms.

Submitted by: jmg, with many changes by me to fully support 64-bit
addresses.
2006-10-30 19:18:46 +00:00
Robert Watson
17451386d0 Forward declare struct cdev, since arguments of this type are used in
function prototypes.

Obtained from:	TrustedBSD Project
2006-10-30 15:20:49 +00:00
Takanori Watanabe
bebb2f3fdd Hook acpi_aiboost module to build. 2006-10-30 06:05:10 +00:00
Takanori Watanabe
1cc5605910 Add conf file entries for acpi_aiboost drivers. 2006-10-30 05:51:54 +00:00
Takanori Watanabe
e4ab9f19d7 Driver for some ASUS desktop motherboard extras.
Though it is named after overclocking tool for ASUS motherboards,
it is not capable to change clock ratio or CPU core voltage.

This driver exports Templature, Power output voltage, Fan RPM under
dev.acpi_aiboost.0.*.

Descriptions for these values are set to sysctl describe, which can be
get by sysctl -d.
2006-10-30 05:38:48 +00:00
John Birrell
b5d6f80729 Add the padding fields to 'struct proc' for the !KSE case that I missed.
Noticed by: pjd
2006-10-29 21:02:22 +00:00
Marius Strobl
432120f2bb - Wrap code optimized for architectures without alignment constraints
in #ifdef __NO_STRICT_ALIGNMENT rather than #ifdef __i386__. This
  means that amd64 now also uses the optimized code. [1]
  While at it, fix a nearby style(9) bug.
- Remove the hw.dc_quick SYSCTL, which allowed to turn off the above
  mentioned optimization, as like the equivalent and already removed
- In dc_setcfg() suppress printing a warning when forcing the receiver
  and transceiver to idle state times out for chips where the status
  bits in question just never change (observed in detail with DM9102A)
  and therefore the warning would be highly likely false positive. [2]
- In dc_ifmedia_sts() add a missing DC_UNLOCK().

Tested by:	Hans-Joerg Sirtl on amd64 [1]
PR:		82681 [2]
Obtained from:	NetBSD tlp(4) [2]
MFC after:	1 week
2006-10-29 20:24:27 +00:00
Marius Strobl
c9c9e0f2da Wrap code optimized for architectures without alignment constraints
in #ifdef __NO_STRICT_ALIGNMENT rather than #if defined(__i386__) ||
defined(__amd64__). Currently this change is cosmetic only though.
While at it, fix a nearby style(9) bug and remove a no longer used
header.
2006-10-29 20:19:41 +00:00
Warner Losh
f68af8c991 Retire the failed OBSOLETE_IN_6 experiment code. 2006-10-29 20:03:55 +00:00
Marius Strobl
10d200c530 Add missing headers. 2006-10-29 17:23:54 +00:00
Ruslan Ermilov
da6d4298b7 Because the BTX mini-kernel now uses flat memory mode and clients
are no longer limited to a virtual address space of 16 megabytes,
only mask high two bits of a virtual address.  This allows to load
larger kernels (up to 1 gigabyte).  Not masking addresses at all
was a bad idea on machines with less than >3G of memory -- kernels
are linked at 0xc0xxxxxx, and that would attempt to load a kernel
at above 3G.  By masking only two highest bits we stay within the
safe limits while still allowing to boot larger kernels.

(This is a safer reimplmentation of sys/boot/i386/boot2/boot.2.c
rev. 1.71.)

Prodded by:	jhb
Tested by:	nyan (pc98)
2006-10-29 14:50:58 +00:00
Alexander Leidinger
96ed72ac81 regen after linux_io_* backout 2006-10-29 14:12:44 +00:00
Alexander Leidinger
3680a41902 Backout the linux aio stuff. Several problems where identified and the
dynamic nature (if no native aio code is available, the linux part
returns ENOSYS because of missing requisites) should be solved differently
than it is.

All this will be done in P4.

Not included in this commit is a backout of the changes to the native aio
code (removing static in some places). Those changes (and some more) will
also be needed when the reworked linux aio stuff will reenter the tree.

Requested by:	rwatson
Discussed with:	rwatson
2006-10-29 14:02:39 +00:00
Oleg Bulyzhin
35da9180dc - Use non-recursive mutex. MTX_RECURSE is unnecessary since rev. 1.70
- Pay respect to net.isr.direct: use netisr_dispatch() instead of ip_input()

Reviewed by:	glebius, rwatson

- purge_flow_set():
    - Do not leak memory while purging queues which are not bound to pipe.
    - style(9) cleanup

MFC after:	2 months
2006-10-29 12:09:24 +00:00
Alexander Leidinger
e3e6449247 style(9)
Noticed by:	rwatson
2006-10-29 09:50:55 +00:00
Bruce Evans
6a70163fcc Removed some SMP ifdefs so that using the TSC as a cputime clock is
not completely decided at config time.  Just don't default to using
the TSC if there are multiple active CPUs.  Also, don't default to
using the TSC if it is broken.  SMP ifdefs are still used to disallow
using perfmon since perfmon is always broken if SMP is just configured.

This only helps much for SMP kernels running on 1 CPU.  The overheads
for using the i8254 cputime clock were a bit too high on 486/33's, and
now on multi-GHz CPUs they are usually in the 99-99.9% range.  Switching
from the old default of an i8254 clock to the TSC works poorly because
the overheads are not recalibrated.

Use the same condition for declaring perfmon stuff as for using it.
2006-10-29 09:48:44 +00:00
Alan Cox
0c2b04b419 Refactor vfs_setdirty(), creating vfs_setdirty_locked_object().
Call vfs_setdirty_locked_object() from vfs_busy_pages() instead of
vfs_setdirty(), thereby eliminating a second acquisition and release
of the same vm object lock.
2006-10-29 00:04:39 +00:00
Alan Cox
20ed1b5b1b In bufdone_finish() restrict the acquisition and release of the page
queues lock to BIO_READ operations.  Recent changes to the implementation
of the per-page flags have eliminated the need for the page queues lock
in the other cases.
2006-10-28 19:16:57 +00:00
Alexander Leidinger
c4ce314b40 Fix style(9).
Noticed by:	rwatson
2006-10-28 16:47:38 +00:00
Bruce Evans
91b4d1bfc2 In the userland .mcount():
- Don't use a frame pointer.  Our callers need a frame pointer, but we
  could only use one to support things that aren't supported.  (These
  things are:
  - profiling of profiling
  - debugging of profiling.  The core ENTRY() macro doesn't support
    forcing a frame pointer for debugging, so don't do more here.)
- Ensure that we are in the text section and have normal alignment.
- Use the normal syntax for `.type'.
2006-10-28 13:12:06 +00:00
Alexander Leidinger
c1ea90bfd3 regen (prctl addition) 2006-10-28 11:24:38 +00:00
Bruce Evans
43f0ea0a27 i386/include/profile.h:
Fixed a syntax error for the (!__KERNEL && !__GNUCLIKE_ASM) case in
rev.1.36.  Apparently, this case has never been reached even by lint.

Submitted by:	stefanf

{amd64,i386}/include/profile.h:
In case the above case is actually reached, break it properly by
providing null support that will fail at link time instead of a stub
that gives wrong (null) profiling at runtime.
2006-10-28 11:03:03 +00:00
Alexander Leidinger
955d762aca MFP4:
Implement prctl().

Submitted by:	rdivacky
Tested with:	LTP
2006-10-28 10:59:59 +00:00
Alexander Leidinger
394ebd352c MFP4:
Rename MAX_SAMPLE_RATES macro to OSS_MAX_SAMPLE_RATES.  The old
	macro clashed with those used in other applications and libaries
	(ex: RtAudio).  4Front responded by updating their spec, so we
	will follow suit.

Submitted by:	ryanb
Noticed by:	pointyhat/kris
2006-10-28 09:51:10 +00:00
Jack F Vogel
9251ddbfe7 Backout bogus checkin to HEAD
Approved by: scottl
2006-10-28 08:11:07 +00:00
Bruce Evans
853b92dacf In MCOUNT_OVERHEAD(label), actually use the `label' parameter. We were
still using the global label named "profil", and this worked accidentally
because all callers use the same name.
2006-10-28 07:59:11 +00:00
Bruce Evans
3a110062fd Cleaned up includes. <machine/profile.h> was unused. <machine/timerreg.h>
was only used in the GUPROF case, so the messes to get its i386 prerequisites
included shouldn't have been needed.

Fixed some style bugs. Quote #error contents, and don't repeat an #error
directive on amd64.
2006-10-28 06:38:51 +00:00
Bruce Evans
94450a83e8 Removed all traces of HIDENAME() in amd64 and i386 kernel code. Using
this used to be slightly cleaner than using ifdefs in a few places to
support both a.out and elf, but using it now just causes messes and
unportabilities.  It seems to be impossible to implement the elf
HIDENAME() portably in cpp (since token pasting of "." and <name> is
invalid).

*/prof_machdep.c:
- Removed all uses of CNAME().  CNAME() is easy enough to use in pure
  asm code, but using it in inline asm requires messy quoting.  The
  core pure asm code has been hacked on more and all uses of CNAME() in
  it have already gone away.  Just assume the elf convention here too.
- Removed now-uneeded include of <machine/asmacros.h>.
- Removed the workaround for a namespace conflict with this include.
2006-10-28 06:04:29 +00:00
Jack F Vogel
52f92a311c This is the merge of the Intel 6.2.9 driver. It provides all new shared code,
new device support, and it is hoped a more stable driver for 6.2. RELEASE.
This checkin was discussed and approved today by RE, scottl, jhb, and pdeuskar
2006-10-28 00:47:55 +00:00
Bruce Evans
447647908c Don't call mexitcount or provide a stub mexitcount to call when
profiling is configured but high resolution profiling is not configured.
Only functions in *.[Ss] called the stub, so efficiency was not
significantly affected.
2006-10-27 14:17:50 +00:00
Oleg Bulyzhin
c2df509a1d - Convert
net.inet.ip.dummynet.curr_time
	net.inet.ip.dummynet.searches
	net.inet.ip.dummynet.search_steps
  to SYSCTL_LONG nodes. It will prevent frequent wrap around on 64bit archs.

- Implement simple mechanics for dummynet(4) internal time correction.
  Under certain circumstances (system high load, dummynet lock contention, etc)
  dummynet's tick counter can be significantly slower than it should be.
  (I've observed up to 25% difference on one of my production servers).
  Since this counter used for packet scheduling, it's accuracy is vital for
  precise bandwidth limitation.

  Introduce new sysctl nodes:
  net.inet.ip.dummynet.
    tick_lost		- number of ticks coalesced by taskqueue thread.
    tick_adjustment	- number of time corrections done.
    tick_diff		- adjusted vs non-adjusted tick counter difference
    tick_delta		- last vs 'standard' tick differnece (usec).
    tick_delta_sum	- accumulated (and not corrected yet) time
  			  difference (usec).

Reviewed by:	glebius
MFC after:	2 month
2006-10-27 13:05:37 +00:00
Oleg Bulyzhin
b2b05096fd Use separate thread for servicing dummynet(4).
Utilize taskqueue(9) API.

Submitted by:	glebius
MFC after:	2 month
2006-10-27 11:16:58 +00:00
Oleg Bulyzhin
c447b19f6e style(9) cleanup.
MFC after:	2 month
2006-10-27 10:52:32 +00:00
David Xu
d21ac9b686 Remove member p_procscopegrp which is no longer used by libthr. 2006-10-27 05:45:44 +00:00
John Birrell
3750d1ecad Remove the KSE option now that it's in DEFAULTS on these arches/machines.
The 'nooption' kernel config entry has to be used to turn KSE off now.
This isn't my preferred way of dealing with this, but I'll defer to
scottl's experience with the io/mem kernel option change and the grief
experienced over that.

Submitted by:	scottl@
2006-10-26 22:11:35 +00:00
John Birrell
013d6d8cb4 Add 'options KSE' to the kernel config DEFAULTS on all arches/machines
except sun4v.

This change makes the transition from a default to an option more
transparent and is an attempt to head off all the compliants that are
likely from people who don't read UPDATING, based on experience with
the io/mem change.

Submitted by:	scottl@
2006-10-26 22:05:25 +00:00
John Birrell
8460a577a4 Make KSE a kernel option, turned on by default in all GENERIC
kernel configs except sun4v (which doesn't process signals properly
with KSE).

Reviewed by:	davidxu@
2006-10-26 21:42:22 +00:00
Ruslan Ermilov
50159fa216 Adopt comments borrowed from aout_freebsd.c. 2006-10-26 20:04:22 +00:00
Ruslan Ermilov
5a20bc0d54 Restore support for -c and -d that were treacherously murdered in
rev. 1.58.  (This only costs us four bytes.)

Prodded by:	bde
MFC after:	3 days
2006-10-26 19:41:02 +00:00
Ruslan Ermilov
5098c00abe Back out rev. 1.71 as it breaks directly loading (i386) kernels.
OK'ed by:	jhb
PR:		i386/96430, i386/104709
MFC after:	3 days
2006-10-26 19:15:54 +00:00
Ruslan Ermilov
a10892b064 MF kmod.mk 1.176: Properly handle vnode_if.h dependencies.
Instructed by:	bde
2006-10-26 19:04:20 +00:00
Bruce Evans
dc8ccf95a8 Fixed high resolution profiling on arches that support it (amd64 and
i386).  Use -mprofiler-epilogue again, and don't use -finstrument-functions.
The former has been fixed for arches that implement high-res profiling,
and the latter has been useless for kernel profiling since gcc-3.4
when it started forcing -fno-inline.  -fno-inline gives a kernel with
performance characteristics too different from a normal kernel to be
worth profiling, by turning off inlining of all the little optimized
functions in headers.  This interacts especially badly with FreeBSD's
use of "static inline" for all inlines in headers, by creating many
separate copies of the little functions, so not inlining tends to
increase cache pressure where it should reduce it, and (since gprof(1)
doesn't understand the copies) the statistics for the little functions
are hard to interpret even if you want them.
2006-10-26 15:16:43 +00:00
Konstantin Belousov
9a969e626c The attempt to rename "." with MAC framework compiled in would cause attempt
to twice unlock the vnode. Check that ni_vp and ni_dvp are different before
doing second unlock.

Reviewed by:	rwatson
Approved by:	pjd (mentor)
MFC after:	1 week
2006-10-26 13:20:28 +00:00
Robert Watson
ae4e9636ac Better align output of "show uma" by moving from displaying the basic
counters of allocs/frees/use for each zone to the same statistics
shown by userspace "vmstat -z".

MFC after:	3 days
2006-10-26 12:55:32 +00:00
Konstantin Belousov
1c99939f08 Fix leak in NAMEI zone caused by nfs server when VOP_RENAME fails.
Submitted by:	Padma Bhooma <pbhooma at panasas com>
Reviewed by:	bde
Approved by:	pjd (mentor)
MFC after:	1 week
2006-10-26 12:41:53 +00:00
Bruce Evans
1dcf308b1e Reduced the ifdef tangle for profiling by moving the unreachable
never-working parts for icc to the attic.

Fixed some nearby style bugs.
2006-10-26 11:53:25 +00:00
Robert Watson
24076d138e Increase usefulness of "show malloc" by moving from displaying the basic
counters of allocs/frees/use for each malloc type to calculating InUse,
MemUse, and Requests as displayed by the userspace vmstat -m.  This is
more useful when debugging malloc(9)-related memory leaks, where the
count of allocs/frees may not usefully reflect that current memory
allocation (i.e., when highly variable size allocations occur with the
same malloc type, such as with contigmalloc).

MFC after:			3 days
Limitations observed by:	scottl
2006-10-26 10:17:13 +00:00
David Xu
4c9b02c253 Optimize umtx_lock_pi() a bit by moving some heavy code out of the loop,
make a fast path when a umtx_pi can be allocated without being blocked.
2006-10-26 09:33:34 +00:00
Olivier Houchard
4e52d86822 Let allow to teardown multiple irqs as well. 2006-10-25 21:11:46 +00:00
Olivier Houchard
0a7b049096 Setup multiple interrupts if needed. 2006-10-25 21:00:08 +00:00
Ruslan Ermilov
ac3912b020 Fix LEDs not working when atkbd is an active keyboard and the physical
keyboard is attached only after the system has already booted.

If USB keyboard is also present, and there's no kbdmux(4), the problem
has been hiding itself because as soon as we get to multi-user, the
USB keyboard becomes an active keyboard (see devd.conf), thus marking
atkbd inactive and letting the old code initialize the keyboard.

With kbdmux(4), or if there's no USB keyboard, the atkbd keyboard is
always active, whether it's physically attached or not, thus it never
initialized itself properly on a physical attach.

To fix this, move block that initialized the keyboard on attach upper
so it doesn't depend on the (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd))
condition.  Also move KBD_FOUND_DEVICE() a few lines upper so that
KDSETLED and KDSETREPEAT that follow it propagate to the controller.

MFC after:	3 days
2006-10-25 13:35:42 +00:00
Robert Watson
f776aa327d Remove extra _MAC_ from #ifdef guard. 2006-10-25 13:14:25 +00:00
Ruslan Ermilov
f280a8fbd3 Fix non-working CAPS LED under X by applying fix from atkbd.c,v 1.27:
: revision 1.27
: date: 2000/05/28 12:43:24;  author: ache;  state: Exp;  lines: +3 -2
: Manipulate with AltGR Led (really CapsLock Led) only in K_XLATE mode, because
: all other modes not set ALKED flag and it means that CapsLock always turned
: off for them.
: Real bug example is X11 which never turn on CapsLock with Russian keyboard.
:
: PR:             18651
: Submitted by:   "Mike E. Matsnev" <mike@po.cs.msu.su>

MFC after:	3 days
2006-10-25 12:22:19 +00:00
Warner Losh
bc8fe52e6d MFp4: Move the parameters that are basically dictated by the AT91
organization to that file.
2006-10-25 08:00:11 +00:00
Warner Losh
1b104c589a MFp4: Status register bits 2006-10-25 07:58:18 +00:00
David Xu
7c24ae418a In order to eliminate a branch, convert opcode to unsigned integer. 2006-10-25 06:38:46 +00:00
David Xu
91d0b4d615 Eliminate an unnecessary `if' statement. 2006-10-25 06:28:23 +00:00
David Xu
ff7668079f Move sigqueue_take() call into proc_reparent(), this fixed bugs where
proc_reparent() is called but sigqueue_take() is forgotten.
2006-10-25 06:18:04 +00:00
Olivier Houchard
d370f1f482 Ooops, dump_avail[i] can be 0 if the RAM starts at 0x00000000, so check that
dump_avail[i + 1] is == 0 as a stop condition instead.
MFC after: 3 days
2006-10-24 23:27:52 +00:00
Maxim Sobolev
016b81e405 Regen. 2006-10-24 17:25:36 +00:00
Maxim Sobolev
ef16706d34 Fix kernel breakage introduced in the previous commit (redeclatation
of the audit functions).
2006-10-24 17:24:11 +00:00
Robert Watson
c71bf4bf63 Regenerate. 2006-10-24 13:54:56 +00:00
Robert Watson
a1dce47980 Hook up audit functions in the freebsd32 compatibility code. It is
believed these likely don't require wrappers.

Reported by:	sobomax
MFC after:	3 days
2006-10-24 13:49:44 +00:00
David Xu
e94cc4ac30 Protect sigqueue_take() call by child process's lock, it fixed a
potential race with ptrace 'attach' which changes parent of the
child process.
2006-10-24 12:04:21 +00:00
Poul-Henning Kamp
3c925ad2aa Ditch crummy fattime <--> timespec conversion functions 2006-10-24 11:55:18 +00:00
Poul-Henning Kamp
4a4cd136b4 Drop crummy fattime to timespec conversion routines.
Leave a XXX here for anybody able to test.
2006-10-24 11:43:41 +00:00
Ruslan Ermilov
e61a65b665 Remove the non-standard and undocumented STAILQ_REMOVE_HEAD_UNTIL()
macro now that we no longer use it.
2006-10-24 11:19:21 +00:00
Ruslan Ermilov
9a583dc7ae Switch to using STAILQ_REMOVE_HEAD() instead of STAILQ_REMOVE_HEAD_UNTIL().
Submitted by:	Stepan A. Baranov

This corresponds to OpenBSD rev. 1.134:

: revision 1.134
: date: 2004/05/04 16:59:31;  author: grange;  state: Exp;  lines: +10 -10
: Remove useless ``elm'' argument from the SIMPLEQ_REMOVE_HEAD macro.
: This matches our SLIST behaviour and NetBSD's SIMPLEQ as well.
:
: ok millert krw deraadt
2006-10-24 11:17:46 +00:00
Poul-Henning Kamp
3c960d9379 Replace slightly crummy fattime<->timespec conversion functions. 2006-10-24 11:14:05 +00:00
Poul-Henning Kamp
7ea93e912b Better naming of fattime conversion functions, they do convert to timespec
after all.

Add 'utc' argument to control if fattimestamps are on UTC or local timezone
calendar.
2006-10-24 10:27:23 +00:00
Scott Long
4eaefb8160 Refine the checksum hack a little. It appears that the chip can handle UDP
and TCP checksum offloading fine, it only has a problem with IP checksums on
IP fragments..  Barring a fix or workaround available from the hardware, the
real solution would be to have finer grained control in the stack over what
can and cannot be assisted in hardware.
2006-10-24 08:24:31 +00:00
Ruslan Ermilov
837f167eb2 Move "device splash" back to MI NOTES and "files", it's MI. 2006-10-23 13:23:14 +00:00
Ruslan Ermilov
663cf7fed2 Move MI parts of syscons into MI "files". 2006-10-23 13:05:01 +00:00
Ruslan Ermilov
66adc12877 Revision 1.25 had the ATKBD_DFLT_KEYMAP option turned on and then off:
: # Options for atkbd:
: options        ATKBD_DFLT_KEYMAP       # specify the built-in keymap
: makeoptions    ATKBD_DFLT_KEYMAP=jp.106
[...]
: nooption       ATKBD_DFLT_KEYMAP
: nomakeoption   ATKBD_DFLT_KEYMAP

(Previously the option was inherited from MI NOTES.)  So my tool in
rev. 1.26 reduced this to removing all "ATKBD_DFLT_KEYMAP" lines,
leaving the option effectively disabled as it was before, but since
it's actually supported on sparc64, turn it on now.
2006-10-23 10:05:36 +00:00
Ruslan Ermilov
9fae53b036 Mechanically kill redundant nodevice/nooption/nomakeoption, i.e.,
those that do not exist in MI NOTES or switched on/off in the MD
NOTES.
2006-10-23 09:45:22 +00:00
Dag-Erling Smørgrav
905e8b430a Re-add screen savers, which I removed by mistake.
Noticed by:	ru
2006-10-23 08:38:42 +00:00
Alan Cox
66bdd5d619 The page queues lock is no longer required by vm_page_wakeup(). 2006-10-23 05:27:31 +00:00
Marcel Moolenaar
5118cd1e4a o Eliminate nexus_print_resources(). Use resource_list_print_type()
instead.
o  Eliminate nexus_print_all_resources(). Inline the function body
   in nexus_print_child().
2006-10-23 00:38:58 +00:00
Max Laier
aaae09da87 net80211 seems to give us more rates than specified via ic_sup_rates under
yet to be investigated circumstances. If that happens truncate to the number
of rates that the firmware supports.

Found by:	Jeremie Le Hen
Obtained from:	OpenBSD (w/ changes)
MFC after:	3 days
2006-10-23 00:34:07 +00:00
Warner Losh
ecaaf14497 Don't descend into at91 until we sort out the boot loader issues more generally 2006-10-23 00:05:28 +00:00
Alan Cox
2a53696fb8 The page queues lock is no longer required by vm_page_busy() or
vm_page_wakeup().  Reduce or eliminate its use accordingly.
2006-10-22 21:18:48 +00:00
Poul-Henning Kamp
b39be1b35c Add two new functions to convert FAT filesystem format timestamps
to and from struct timespec, to replace the crummy conversion
function which have been copy&pasted into three different
filesystems already.

Apart from general crummyness as indicated by code like:

	for (year = 1970;; year++) {
		inc = year & 0x03 ? 365 : 366;
		if (days < inc)
			break;
		days -= inc;
	}

They also contain specialized crummyness which tries to compensate
for the general crummyness by caching recent conversion results,
with no regard for locking or consistency.

These replacement functions are smaller, O(1) and handle the Y2.1K
leap-year correctly.

Ideally, these functions should live in a module of their own,
which the three offending filesystems would depend on, but the
size is 877 bytes of code (on i386), so that would be false
economy.
2006-10-22 18:19:08 +00:00
Xin LI
e3af7c042c Fix build: remove (now) unnecessary PG_BUSY check, it's handled by vm object locking. 2006-10-22 16:33:43 +00:00
Robert Watson
aed5570872 Complete break-out of sys/sys/mac.h into sys/security/mac/mac_framework.h
begun with a repo-copy of mac.h to mac_framework.h.  sys/mac.h now
contains the userspace and user<->kernel API and definitions, with all
in-kernel interfaces moved to mac_framework.h, which is now included
across most of the kernel instead.

This change is the first step in a larger cleanup and sweep of MAC
Framework interfaces in the kernel, and will not be MFC'd.

Obtained from:	TrustedBSD Project
Sponsored by:	SPARTA
2006-10-22 11:52:19 +00:00
Alan Cox
9af80719db Replace PG_BUSY with VPO_BUSY. In other words, changes to the page's
busy flag, i.e., VPO_BUSY, are now synchronized by the per-vm object
lock instead of the global page queues lock.
2006-10-22 04:28:14 +00:00
Alan Cox
43200cd3ed Eliminate unnecessary PG_BUSY tests. 2006-10-22 04:18:01 +00:00
Kevin Lo
4b29020487 Initialize T1 to silent gcc warning.
Approved by: cognet
2006-10-22 02:19:33 +00:00
David Xu
5c28a8d474 Use macro TAILQ_FOREACH_SAFE instead of expanding it. 2006-10-22 00:09:41 +00:00
David Xu
f71e748d89 Since revision 1.333 of kern_sig.c no longer uses P_WEXIT, the change
opened a race window which can cause memory leak in signal queue.
Here we free memory for signal queue when process state is set to
PRS_ZOMBIE.
2006-10-21 23:59:15 +00:00
Warner Losh
ea8c4b451e MFp4: default to not loading the fpga 2006-10-21 22:51:21 +00:00
Warner Losh
7a7404e61a MFp4: Update to smaller code footprint. 2006-10-21 22:44:26 +00:00
Warner Losh
5c58ee12d5 MFp4: Move to smaller code footprint. 2006-10-21 22:43:39 +00:00
Warner Losh
9c99b493ea MFp4: Move to smaller code. This was somehow forgotten before. 2006-10-21 22:43:07 +00:00
Alan Cox
9fea8cad08 Eliminate unnecessary PG_BUSY tests. They originally served a purpose
that is now handled by vm object locking.
2006-10-21 21:02:04 +00:00
Scott Long
49caa8a9f8 There seems to be a problem with txcsum and UDP. Turn it off until it is
understood better.  This fixes timeout problems with NFS.
2006-10-21 20:41:08 +00:00
Ruslan Ermilov
7971a9bc04 MFi386: 1.13: Fix booting with ps2 keyboards. 2006-10-21 12:52:46 +00:00
Gleb Smirnoff
2d479ae19b Fix error in rev. 1.68. The intention was to break out the switch(){},
but actually exited from the for(){} loop. This fixes the PPPIOCSCOMPRESS
ioctl.

PR:		kern/101333
Submitted by:	Igor Popov <igorpopov newmail.ru>
2006-10-21 09:44:02 +00:00
Tom Rhodes
94a28290c1 Fake the link count until we have no choice but to load data from the
MFT.

PR:		86965
Submitted by:	Lowell Gilbert <lgfbsd@be-well.ilk.org>
2006-10-21 08:17:17 +00:00
Scott Long
61a1e7e66d Be more like the BGE driver. Ensure that at least 16 TX descriptors are
kept unused in the ring.  This check should probably be moved up to
bce_start_locked at some point, as it'll make the loop up there slightly
more efficient, and will eliminate a costly set of busdma operations when
the ring is full.  But this works for now.

This makes all of my UDP torture tests work.  I'll cautiously say that
it might even work for other users now.  Feedback is appreciated.
2006-10-21 07:54:39 +00:00
Kevin Lo
24ef8c83ee style(9) cleanup.
Approved by: cognet
2006-10-21 04:25:00 +00:00
Scott Long
66e0fb91cc Fix whitespace 2006-10-21 04:13:20 +00:00
Olivier Houchard
06e28eec94 Ok I am an idiot. On 32 bits big-endian systems, it is needed to handle the
syscalls using __syscall but only actually returning 32bits, such as mmap(),
specially : they set the return value in td->td_retval[0], but the userland
functions will expect this in r1, and not in r0 as it is normally done, as it
is the LSB. So add a special case for all these syscalls (all except lseek,
which truly returns 64bits).

Many thanks to Peter Grehan for his patience while explaining me the issue.
2006-10-21 00:46:56 +00:00
Julian Elischer
010b65f54a revert last change.. premature.. need to wait until if_ethersubr.c
uses pfil to get to ipfw.
2006-10-21 00:16:31 +00:00
Olivier Houchard
38b3d206f4 Use __QUAD_LOWWORD for __syscall, to always use the good word, whatever the
endianness is.
2006-10-20 22:40:31 +00:00
John-Mark Gurney
8946c28270 fix tab indentation for CP and RV...
If the length is zero, catch this early, instead of making dflen go negative
and letting bad things happen...  We also check to see if RV (checksum) is
0, and handle that has a checksum failure...

Properly handle checksum failures by not processing read-write VPD data,
and removing all the found read-only data...

Tested by:	oleg (dflen going negative)
2006-10-20 21:28:11 +00:00
Julian Elischer
3df668cc38 Move some variables to a more likely place
and remove "temporary" stuff that is not needed any more.
2006-10-20 19:32:08 +00:00
Warner Losh
f8b97a442a There's no fpga.c, so omit it. 2006-10-20 16:57:30 +00:00
John Baldwin
0fc32899f1 Remove the check that prevented signals from being delivered to exiting
processes.  It was originally added back when support for Linux threads
(and thus shared sigacts objects) was added, but no one knows why.  My
guess is that at some point during the Linux threads patches, the sigacts
object was torn down during exit1(), so this check was added to prevent
a panic for that race.  However, the stuff that was actually committed to
the tree doesn't teardown sigacts until wait() making the above race moot.
Re-allowing signals here lets one interrupt a NFS request during process
teardown (such as closing descriptors) on an interruptible mount.

Requested by:	kib (long time ago)
MFC after:	1 week
2006-10-20 16:19:21 +00:00
Yoshihiro Takahashi
d0ea53f561 - MFi386: Remove 'device io'.
- Remove duplicate options.
- 'nomakeoption ATKBD_DFLT_KEYMAP' is not needed anymore.
2006-10-20 11:48:46 +00:00
Olivier Houchard
40594b3305 There's no need to special-case lseek for arm/big-endian. 2006-10-20 11:00:03 +00:00
Alexander Leidinger
0f0549587b Fix a recent regression regarding valid signals.
Submitted by:	rdivacky
2006-10-20 10:09:40 +00:00
Dag-Erling Smørgrav
c43ac89acc Move more MD devices and options out of MI NOTES. 2006-10-20 09:52:27 +00:00
Bruce Evans
045f738b58 Don't show debug registers in "show registers". Special registers should
be displayed specially, and debug registers are among of the least
interesting special registers (far behind %cr3).  The debug registers
are still accessible as variables and displayed in another bogus place
("show watches").
2006-10-20 09:44:21 +00:00
Warner Losh
184ed5f988 MFp4:
Massive update.  The highlights:
	o dramatically cut memory usage by writing better, less intertwingled
	  code.
	o implement booting off mmc/sd cards (sd only tested one at the moment)
	o start to split out board specific stuff for boot2.
2006-10-20 09:12:05 +00:00
Dag-Erling Smørgrav
c276283866 The VGA_DEBUG option only exists on {amd64,i386,ia64}.
Also remove 'device io' from amd64 NOTES; DEFAULTS takes care of it.
2006-10-20 08:56:26 +00:00
Konstantin Belousov
16f50bcd80 Update the access and modification times for dev while still holding
thread reference on it.

Reviewed by:	tegge
Approved by:	pjd (mentor)
2006-10-20 08:03:42 +00:00
Konstantin Belousov
1663075c64 Fix the race between devfs_fp_check and devfs_reclaim. Derefence the
vnode' v_rdev and increment the dev threadcount , as well as clear it
(in devfs_reclaim) under the dev_lock().

Reviewed by:	tegge
Approved by:	pjd (mentor)
2006-10-20 07:59:50 +00:00
Warner Losh
32c3bb77fa Sort MFILES list
Noticed by: ru@
2006-10-20 07:31:15 +00:00
Warner Losh
86663fabdd MFp4: when passing the transfer up the foodchain, make sure we go up
the food chain.  devi == NULL is the error condition.  Treat it as such.
2006-10-20 07:11:52 +00:00
Warner Losh
0f1c5aca64 MFp4: Working SPI driver. 2006-10-20 07:10:13 +00:00
Warner Losh
89975186a3 Commit WIP SSC driver, more work is needed here, but it configures
things OK.
2006-10-20 07:08:59 +00:00
Warner Losh
bfa94035b0 More register definitions. 2006-10-20 07:08:15 +00:00
Warner Losh
5f9c612ae7 Progress commit for getting TWI working 2006-10-20 07:06:39 +00:00
Warner Losh
56878d42da Add sysctl to export current state of rmii vs mii configuraiton.
Fix a typo in resource allocation.
2006-10-20 07:04:56 +00:00
Warner Losh
e352ac0afb Add configuration of the SSC lines for second SSC. 2006-10-20 07:03:57 +00:00
Warner Losh
fa01fe55de Add mmcbr_if.m and mmcbus_if.m to the mix. 2006-10-20 06:55:49 +00:00
Warner Losh
84ee9401a3 Loadable modules for mmc (the bus) amd mmcsd (the MMC and SD support
code).  A little green, so not yet connected to the build.
2006-10-20 06:52:59 +00:00
Warner Losh
e41e815e5c MMC/SD bridge driver (host adapter) for AT91RM9200's MCI interface.
This interface also appears in the AT91SAM9260 and '61 as well as the
AVR32 based micros from Atmel.  We don't yet support write protect or
hot-swap in this bridge driver.
2006-10-20 06:44:04 +00:00
Warner Losh
114b4164dd Preliminary MMC stack. This stack supports SD 1.0 cards only, but
should be easily adapted to SD 2.0 (aka SDHC), SDIO, MMC and MMCplus
cards.  At the present time, there's only one bridge driver for the
ARM9 based Atmel AT91RM9200.
2006-10-20 06:39:59 +00:00
John Baldwin
8a512df52a - Define time_t in sys/sem.h so it doesn't require sys/types.h.
- Move the pid_t, size_t, and time_t definitions earlier in the file, sort
  them, and fix whitespace.
- Drop redundant includes of sys/cdefs.h and sys/_types.h as sys/ipc.h
  already includes them.

PR:		kern/104436
Reviewed by:	bde
Reported by:	clsung
MFC after:	3 days
2006-10-19 14:36:41 +00:00
David E. O'Brien
f220c6a2f9 style(9) 2006-10-19 10:04:46 +00:00
David E. O'Brien
2c3adf6127 style(9) cleanup. 2006-10-19 10:01:26 +00:00
Scott Long
706620f05b There is no reason to have a PAGE_SIZE alignment enforced on all DMA by the
parent tag.
2006-10-19 08:03:22 +00:00
Scott Long
e06c706542 I can't find any reason why an 8 byte alignment should be enforced on rx
and tx buffers.  Fix it there, and also don't have it be overridden by the
parent tag.
2006-10-19 08:01:43 +00:00
Scott Long
ae4991a54c Remove some spurious debugging, and use more complete error handling for
tx load and fragmentation problems.
2006-10-19 06:58:01 +00:00
Ruslan Ermilov
034f5f8e72 Add missing acpi_wakecode.o: assym.s dependency, so that if assym.s
is newer than acpi_wakecode.h, the latter is rebuilt.

Reported by:	bde
2006-10-19 05:55:09 +00:00
Warner Losh
ea3e117aaf tweak comments about OLDCARD workarounds 2006-10-19 05:25:53 +00:00
Warner Losh
eac85b1fe3 tweak comment 2006-10-19 05:25:29 +00:00
Warner Losh
e54ad0a189 Remove references to pccard.conf 2006-10-19 05:17:55 +00:00
Ian Dowse
9145721957 Use a different task queue for host controller and peripheral driver
tasks. Since the host controllers rely on tasks to process transfer
timeouts, if a synchronous transfer from a driver was invoked from
a task and timed out, it would never complete because the single
task thread was stuck performing the synchronous transfer so couldn't
process the timeout.

This affected the axe, udav and ural drivers.

Problem hardware provided by:	guido
2006-10-19 01:15:58 +00:00
Marcel Moolenaar
d9bbf2a8a9 Fix previous revision:
o  day and mday are the same. No need to subtract 1 from mday.
o  Set dow to -1 as clock_ct_to_ts() checks this field and
   returns EINVAL on any day of the week but Sunday.
2006-10-19 00:53:35 +00:00
Peter Grehan
9d8de43379 Fix remaining compile error. 2006-10-18 19:56:20 +00:00
Konstantin Belousov
828d6d12da Properly lock the vnode around vgone() calls.
Unlock the vnode in devfs_close() while calling into the driver d_close()
routine.

devfs_revoke() changes by:	ups
Reviewed and bugfixes by:	tegge
Tested by:	mbr, Peter Holm
Approved by:	pjd (mentor)
MFC after:	1 week
2006-10-18 11:17:14 +00:00
Gleb Smirnoff
e4c185db7a Check pointer before dereferencing.
Reported by:	Coverity
CID:		1556
2006-10-18 07:47:07 +00:00
Bruce Evans
1ca2c0183f kern_intr.c:
- Count (scheduling of) software interrupts (SWIs) as SWIs, not as
  hardware interrupts.
- Don't count (scheduling of) delayed SWIs as interrupts at all, since
  in the delayed case it is expected that there are many more scheduling
  calls than handling calls.  Perhaps all interrupts should be counted
  only when they are handled, but it is only counts of delayed SWIs that
  shouldn never be combined with the other counts.

subr_trap.c:
- Count (handling of) Asynchronous System Traps (ASTs) as traps, not as
  software interrupts.

Before these changes, the counter for SWIs only counted ASTs, and SWIs
weren't counted separately, but a subcounter for ASTs alone is less
needed than for most other exception sources.

4.4BSD-Lite uses the counters for similar things (actually matching
their names) on its main arches (hp300, ..., !i386) where more of the
exceptions are in hardware.
2006-10-18 04:48:09 +00:00
David Xu
6e5bfbba9a Attempt to fix compiling problem.
Noticed by: tinderbox
2006-10-18 02:09:46 +00:00
Bruce Evans
35259c2c89 Fixed some style bugs (especially ones involving long lines and use
of __P(())).  There are many more.
2006-10-17 22:07:07 +00:00
Warner Losh
bb914a52d1 Collapse the two identical emu10k1-alsa%diked.h creation rules for
snd_emu10k1 and snd_emu10kx into one line.  The 'pci' dependency here
adds no value, so I eliminted it (we don't have a snd.all file that
might make it mildly useful, and even then it wouldn't be that
useful).  With the pci optional component eliminated, I could use the
'|' operator.  I could have also include pci on both sides of the |
operator, but since it isn't a value add at all, it was better to
eliminate it.
2006-10-17 18:08:04 +00:00
Gleb Smirnoff
237af4af3f Some clenaup of ngs_rcvmsg():
- Inline ship_msg() into ngs_rcvmsg().
  - Plug memory leak in case if no control socket present.
  - Remove malloc() and allocate the sockaddr on stack.
  - style(9).
2006-10-17 16:52:09 +00:00
Andrew Gallatin
b4db900931 Fix a driver bug which could result in frames MHLEN or (MHLEN - 1) bytes
long being DMA'ed 2 (or 1) bytes past the end of the mbuf and corrupting
random kernel memory.  I had forgotten about the 2 bytes of implict
padding the firmware assumes.

Sponsored by: Myricom Inc.
2006-10-17 14:39:19 +00:00
Gleb Smirnoff
dcaf468dcb Some cleanup and small changes:
- Use malloc() and free() instead of MALLOC() and FREE() macros.
  - Do not check malloc results if M_WAITOK was used.
  - Remove linked list of all netgraph sockets. It isn't needed.
  - Use ng_findhook() instead of searching the list ourselves.
  - Use NG_WAITOK in syscalls.
  - Remove unneeded includes.
  - style(9)
2006-10-17 12:21:48 +00:00
Gleb Smirnoff
81ba27c8d9 Make the sg_len and sg_family members of the sockaddr_ng the same type
as the corresponding values in sockaddr are.
2006-10-17 11:03:55 +00:00
Gleb Smirnoff
bb964e745b Make ng_ID_t fixed size, so that its maximum value is platform independent.
This will be important in future.
2006-10-17 11:01:20 +00:00
Gleb Smirnoff
c6964951c6 - ng_address_ID() has already freed the message, don't do double free.
- Get error from ng_address_ID().

Reported by:	Coverity via pjd
2006-10-17 10:59:39 +00:00
Ruslan Ermilov
dfa8edfec6 Older incarnations of the device used non-standard BARs.
Reported by:	Andriy Gapon
Confirmed by:	many (including lm-sensors-2.10.1)
MFC after:	3 days
2006-10-17 10:26:11 +00:00
Joseph Koshy
9b119ea634 Convert types 'Elf{32,64}_Nhdr' into aliases of the generic 'Elf_Note'
type.

Reviewed by:	jb
2006-10-17 05:43:30 +00:00
John Birrell
1e118f7ee8 Comment out a debug entry which doesn't compile. Needed to fix LINT. 2006-10-17 03:53:38 +00:00
David Xu
3c573376e8 rename casuptr to casuword. 2006-10-17 03:05:17 +00:00
David Xu
034b26fc65 Regenerate. 2006-10-17 02:28:58 +00:00
David Xu
3f9223b65d Sync with master. 2006-10-17 02:28:26 +00:00
David Xu
5f641fc0fb o Add keyword volatile for user mutex owner field.
o Fix type consistent problem by using type long for old
  umtx and wait channel.
o Rename casuptr to casuword.
2006-10-17 02:24:47 +00:00
John Birrell
951c63bc3a In sun4v, use the sparc64 version. We haven't used the serial port on
sun4v yet, so this is a 'best-guess'.
2006-10-16 22:11:53 +00:00
John Birrell
7486916426 Add a .PATH entry to search for sources in the ${MACHINE}/${MACHINE}
directory before the ${MACHINE_ARCH}/${MACHINE_ARCH} directory so that
machine-specific files take precedence of architecture-specific ones.

This fixes the build on sun4v which doesn't use the sparc64 version
of mem.c.

Tested by: make universe
2006-10-16 22:09:48 +00:00
John Birrell
89eb1586fe Comment out 'device isa'.
Add a lot of nodevice entries for things that depend on isa, kbd and
other PC-centric things.
2006-10-16 22:06:59 +00:00
John Baldwin
b85360078a Add one more include to fix the case of !DDB and !atpic. 2006-10-16 21:40:46 +00:00
David E. O'Brien
3cb32d8ab3 Correct the WOL magic value.
Submitted by:	Peer Chen at nVIDIA
2006-10-16 20:33:23 +00:00
David E. O'Brien
6bec396750 Try to be more precise in identifying the various nForce networking adapters. 2006-10-16 16:36:29 +00:00
Ariff Abdullah
55be51bf55 - Inverted EAPD quirk for ASUS A8Jc.
- Take the literal meaning of eapdbtl, but do the inversion during
  write.

Tested by:	Chung-liang Wei <idreamer@gmail.com>
2006-10-16 14:43:22 +00:00
Scott Long
6d678f8ee7 Remove some debugging code that accidentally crept in. 2006-10-16 04:30:09 +00:00
Scott Long
441f6d5dca - Add a command validator for use in debugging.
- Fix the locking protocol to eliminate races between normal I/O and AENs.
- Various small improvements and usability tweaks.

Sponsored by: IronPort
Portions Submitted by: Doug Ambrisko
2006-10-16 04:18:38 +00:00
Yoshihiro Takahashi
3fe3dba179 MFi386: revision 1.567 (add linux_aio.c). 2006-10-16 02:26:06 +00:00
Scott Long
c5a01a410c Overhaul the transmit and dma paths:
- Use bus_dmamap_load_mbuf_sg() to eliminate the need for the callback and
all of the extra bookkeeping associated with it.
- Eliminate the bce_dmamap_arg structure and streamline the memory allocation
routines to not need it.  This does change some of the debugging messages.
- Refactor the loop that fills the buffer descriptor so that it can be done
with a single set of logic in a single loop instead of two sets of logic.
- Eliminate the need to cache and pass descriptor indexes between the start
loop and the encap function.
- Change the start loop to always check the ifnet sendq for more work.

This significantly helps the driver withstand large UDP workloads, though
it's still not perfect.  I suspect the remaining work lies with handling
the OACTIVE flag, and also in possibly streamlining the interrupt handler
some.  It is, however, nearly on par with the other popular gigabit drivers
in terms of stability now.
2006-10-15 23:42:56 +00:00
Hiroki Sato
b84baf83b9 Add a newline to the printf().
Spotted by:	Peter Carah <pete@altadena.net>
MFC after:	3 days
2006-10-15 16:52:59 +00:00
Alexander Leidinger
6474221698 Fix compile (use the right variable name). 2006-10-15 14:34:03 +00:00
Alexander Leidinger
95f2da66d3 regen (linux AIO stuff) 2006-10-15 14:24:10 +00:00
Alexander Leidinger
6a1162d4cd MFP4 (with some minor changes):
Implement the linux_io_* syscalls (AIO). They are only enabled if the native
AIO code is available (either compiled in to the kernel or as a module) at
the time the functions are used. If the AIO stuff is not available there
will be a ENOSYS.

From the submitter:
---snip---
DESIGN NOTES:

1. Linux permits a process to own multiple AIO queues (distinguished by
   "context"), but FreeBSD creates only one single AIO queue per process.
   My code maintains a request queue (STAILQ of queue(3)) per "context",
   and throws all AIO requests of all contexts owned by a process into
   the single FreeBSD per-process AIO queue.

   When the process calls io_destroy(2), io_getevents(2), io_submit(2) and
   io_cancel(2), my code can pick out requests owned by the specified context
   from the single FreeBSD per-process AIO queue according to the per-context
   request queues maintained by my code.

2. The request queue maintained by my code stores contrast information between
   Linux IO control blocks (struct linux_iocb) and FreeBSD IO control blocks
   (struct aiocb). FreeBSD IO control block actually exists in userland memory
   space, required by FreeBSD native aio_XXXXXX(2).

3. It is quite troubling that the function io_getevents() of libaio-0.3.105
   needs to use Linux-specific "struct aio_ring", which is a partial mirror
   of context in user space. I would rather take the address of context in
   kernel as the context ID, but the io_getevents() of libaio forces me to
   take the address of the "ring" in user space as the context ID.

   To my surprise, one comment line in the file "io_getevents.c" of
   libaio-0.3.105 reads:

             Ben will hate me for this

REFERENCE:

1. Linux kernel source code:   http://www.kernel.org/pub/linux/kernel/v2.6/
   (include/linux/aio_abi.h, fs/aio.c)

2. Linux manual pages:         http://www.kernel.org/pub/linux/docs/manpages/
   (io_setup(2), io_destroy(2), io_getevents(2), io_submit(2), io_cancel(2))

3. Linux Scalability Effort:   http://lse.sourceforge.net/io/aio.html
   The design notes:           http://lse.sourceforge.net/io/aionotes.txt

4. The package libaio, both source and binary:
       http://rpmfind.net/linux/rpm2html/search.php?query=libaio
   Simple transparent interface to Linux AIO system calls.

5. Libaio-oracle:              http://oss.oracle.com/projects/libaio-oracle/
   POSIX AIO implementation based on Linux AIO system calls (depending on
   libaio).
---snip---

Submitted by:	Li, Xiao <intron@intron.ac>
2006-10-15 14:22:14 +00:00
Alexander Leidinger
0a62e03542 MFP4 (106538 + 106541):
Implement CLONE_VFORK. This fixes the clone05 LTP test.

Submitted by:	rdivacky
2006-10-15 13:39:40 +00:00
Alexander Leidinger
2482245b0c Revert my previous commit, I mismerged this to the wrong place.
Pointy hat to:	netchild
2006-10-15 13:30:45 +00:00
Alexander Leidinger
21aed094a9 MFP4 (106541): Fix the clone05 test in the LTP.
Submitted by:	rdivacky
2006-10-15 13:25:23 +00:00
Alexander Leidinger
4b3583a354 MFP4 (107144[1]): Implement CLONE_FS on i386[1] and amd64.
Submitted by:	rdivacky	[1]
2006-10-15 13:22:14 +00:00
Alexander Leidinger
687c23be1d MFP4 (107868 - 107870):
Use a macro to test for a valid signal instead of doing it my hand everywhere.

Submitted by:	rdivacky
2006-10-15 12:51:43 +00:00
Ariff Abdullah
503ee05bc3 Wrap debug printfs into SEQ_DEBUG() to avoid kernel messages clutter
during module unload.
2006-10-15 08:23:48 +00:00
Seigo Tanimura
7370bc7770 Fix the wraparound of memsize >=2GB. 2006-10-15 05:04:06 +00:00
Alan Cox
7e2393ff51 Long ago, revision 1.22 of vm/vm_pager.h introduced a bug. Specifically,
it introduced a check after the call to file system's get pages method
that assumes that the get pages method does not change the array of pages
that is passed to it.  In the case of vnode_pager_generic_getpages(),
this assumption has been incorrect.  The contents of the array of pages
may be shifted by vnode_pager_generic_getpages().  Likely, the problem
has been hidden by vnode_pager_haspage() limiting the set of pages that
are passed to vnode_pager_generic_getpages() such that a shift never
occurs.

The fix implemented herein is to adjust the pointer to the array of pages
rather than shifting the pages within the array.

MFC after: 3 weeks
Fix suggested by: tegge
2006-10-14 23:21:48 +00:00
Alan Cox
bff763439b Change vnode_pager_addr() such that on returning it distinguishes between
an error returned by VOP_BMAP() and a hole in the file.

Change the callers to vnode_pager_addr() such that they return
VM_PAGER_ERROR when VOP_BMAP fails instead of a zero-filled page.

Reviewed by: tegge
MFC after: 3 weeks
2006-10-14 22:09:03 +00:00
Ruslan Ermilov
a1b0a18096 Prevent IOC_IN with zero size argument (this is only supported
if backward copatibility options are present) from attempting
to free memory that wasn't allocated.  This is an old bug, and
previously it would attempt to free a null pointer.  I noticed
this bug when working on the previous revision, but forgot to
fix it.

Security:	local DoS
Reported by:	Peter Holm
MFC after:	3 days
2006-10-14 19:01:55 +00:00
Tom Rhodes
f51bf07af8 Close a race condition where num can be larger than tmp, giving the user
too large of a boundary.

Reported by:	Ilja Van Sprundel
2006-10-14 10:30:14 +00:00
Bruce Evans
6a72ff6b09 Don't do null Setattr RPCs for VA_MARK_ATIME. When we added the
VA_MARK_ATIME feature to fix POSIX conformance fore execve() and mmap(),
we thought that it was optimized well enough for the one file system
that supports it (ffs) and harmless for other file systems (except
layered ones which already get the layering for VOP_SETATTR() wrong).
However, nfs_setattr() doesn't do much parameter checking, so when
it gets a combination of parameters that it doesn't understand, it
always does a Setattr RPC.  This RPC can't do anything good, and for
VA_MARK_ATIME it is null except for wasting a lot of time.

This is the smallest and easiest to fix of several bugs that have
increased the number of RPCs for kernel builds on nfs by more than
100% since 2004-11-05.  The real-time increase depends on network
latency and parallelization and can also be very large (approaching
the same percentage for unparallelized operations like "make depend"
on systems with fast CPUs and high-latency networks).
2006-10-14 07:25:11 +00:00
Scott Long
f77d2d79f1 Simplify the arguments to bce_tx_encap. 2006-10-14 05:30:12 +00:00
Scott Long
a1f63be099 More small whitespace cleanups 2006-10-14 04:28:23 +00:00
Scott Long
ec6887f825 Don't copy the bd_chain head pointers into temporary objects, they are
available globally.
2006-10-14 03:58:59 +00:00
Ruslan Ermilov
90c3810cda Define an empty C_DIALECT in case of "icc", just in case. 2006-10-13 22:29:06 +00:00
Ruslan Ermilov
74465532f6 - Remove include links only when .depend is also removed, so that
"make depend; make clean; make -n" works.

- Preseve kernel's .depend if it already exists and its creation
  is interrupted.

Reported/reviewed by:	bde
2006-10-13 22:28:14 +00:00