Update Documentation/oops-tracing.txt:

- add descriptions of 3 more "Tainted" flags;
- fix some typos;
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Some adjustments to the matroxfb code, for one part preventing the display
to be disabled for longer than necessary, and for the other part to make
information about the frame buffer position available so that a kernel
debugger might obtain that before the initial mode change.

Finally, some return code corrections to fit the generic fb code.
Signed-off-by: NJan Beulich <jbeulich@novell.com>
Acked-by: NPetr Vandrovec <vandrove@vc.cvut.cz>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

const-ify the font control structures and data, to make somewhat better
guarantees that these are not modified anywhere in the kernel.
Specifically for a kernel debugger to share this information from the
normal kernel code, such a guarantee seems rather desirable.
Signed-off-by: NJan Beulich <jbeulich@novell.com>
Cc: "Antonino A. Daplas" <adaplas@hotpop.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

An adjustment to the SM_DOWN case of fbcon_scroll to match the behavior of
SM_UP.
Signed-off-by: NJan Beulich <jbeulich@novell.com>
Cc: "Antonino A. Daplas" <adaplas@hotpop.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

- Bug fix for DViCO FusionHDTV5 Gold to avoid noise after frontend init.
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Adds all defines, ioctls and structs needed for the sliced VBI API

VBI = Vertical Blank Interval.

It is related with the way TV signals work.  It sends a line, then, it has a
retrace time to allow the tube to move electrons to the beginning of the next
line.  This was the main reason at the beginning of analog B&W TV.

There is a lot of bandwidth lost on VBI.  So, lots of TV systems use it to
send other information such as Closed Captions and Teletext.  Also,
broadcasters uses this as a channel to exchange information from the content
producer to their subsidiaries at each city.

There's already a raw VBI interface on V4L2 api, used for Closed Captions and
Teletext.  The decoding is doing at userlevel space and it is mostly for
analog TV signals, non encoded.

Encoded signals (MPEG, for example), may need also to transmit other
information (like, for example, display aspect, i.e.  4x3, widescreen...).
Sliced VBI interface is a method to allow the video stream to transmit this
kind of information.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Change a printk(KERN_WARNING to dprintk, and it is really only interesting
when trying to debug a problem, and can occur normally without error.

Remove various gratuitous gotos in surrounding code, and remove some
type-cast assignments from inside 'if' conditionals, as that is just
obscuring what it going on.
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

We could try to unlock the state lock here without having first locked it.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

In the case of a lock which introduces a new lockowner, the openowner's
sequence id should be incremented, even when the operation fails, if the
error is a sequence-id-mutating error.  The current code fails to do that
in some cases.  Fix this by using the same sequence-id-incrementing
mechanism that all other such operations use.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

It seems more natural to move the setting of the replay_owner into the
relevant procedure instead of doing it in nfsv4_proc_compound.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Demote some printk's that look like they could be triggered by non-buggy
clients to dprintk's.  (For example, stale clientid's are normal
occurrences on reboot, and on a server with a lot of clients these messages
could become annoying.)

Also remove some redundant dprintk's (e.g. no need for both STALE_CLIENTID
and its callers to do dprintks).
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Add a input driver for the keyboard found on the Zaurus Cxx00 series (Spitz,
Akita, Borzoi).  Its based on corgikbd but there are enough subtle differences
to justify a separate driver.
Signed-Off-by: NRichard Purdie <rpurdie@rpsys.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Add the platform support code for two new Sharp Zaurus Models, Spitz
(SL-C3000) and Borzoi (SL-C3100).

This patch also adds most of the foundations for Akita (SL-C1000) Support.
The missing link for Akita is the driver for its I2C io expander.  Once this
has been finished, the missing Kconfig option and machine declaration can
easily be added to this code.
Signed-Off-by: NRichard Purdie <rpurdie@rpsys.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Separate out the Sharp Zaurus c7x0 series specific code from the Corgi
backlight driver.  Abstract model/machine specific functions to corgi_lcd.c
via sharpsl.h

This enables the driver to be used by the Zaurus cxx00 series.
Signed-Off-by: NRichard Purdie <rpurdie@rpsys.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Separate out the Sharp Zaurus c7x0 series specific code from the Corgi
Touchscreen driver.  Use the new functions in corgi_lcd.c via sharpsl.h for
hsync handling and pass the IRQ as a platform device resource.  Move a
function prototype into the w100fb header file where it belongs.

This enables the driver to be used by the Zaurus cxx00 series.
Signed-Off-by: NRichard Purdie <rpurdie@rpsys.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The same LCD is present on both the Sharp Zaurus c7x0 series and the cxx00 but
with different framebuffer drivers (w100fb vs.  pxafb).  This patch adds
support for the cxx00 series to the LCD driver.  It also adds some LCD to
touchscreen interface logic needed by the touchscreen driver to prevent
interference problems, the idea being to keep all the ugly code in one place
leaving the drivers themselves clean.  sharpsl.h is used to provide the
abstraction.
Signed-Off-by: NRichard Purdie <rpurdie@rpsys.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Sharp's newer range of Zaurus clamshell handhelds, the cxx00's are similar to
the c7x0 series yet different.  This patch series abstracts the differences
and generates a set of common drivers that support both series of devices.  It
then adds machine support for Spitz (SL-C3000) and Borzoi (SL-C3100).  Hooks
for Akita (SL-C1000) differences are also added.  The I2C driver for its IO
expander is the only missing piece.

This patch:

Separate out the Sharp Zaurus c7x0 series specific code from corgi_ssp.c so
that other models such as the cxx00's can share it.  Create sharpsl.h which
will be used to abstract machine/model specifics.

This enables the driver to be used by the Zaurus cxx00 series.
Signed-Off-by: NRichard Purdie <rpurdie@rpsys.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Remove some redundant BUG_ON() statements in pktcdvd and move one run-time
check to compile-time.
Signed-off-by: NPeter Osterlund <petero2@telia.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Use kcalloc and kzalloc in pktcdvd.
Signed-off-by: NPeter Osterlund <petero2@telia.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

In the /proc statistics, only count writes that upper layers have requested.
Don't count additional writes created inside the packet driver to satisfy the
requirement to only write full packets.
Signed-off-by: NPeter Osterlund <petero2@telia.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Update the "theory of operation" description.
Signed-off-by: NPeter Osterlund <petero2@telia.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

In the packet writing driver, if the drive reports a packet size larger than
the driver can handle, bail out safely instead of triggering a BUG_ON.
Signed-off-by: NPeter Osterlund <petero2@telia.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Add SCSI host and device info not elsewhere available to /proc/scsi/cciss/*
Namely, connect cciss device instance with scsi host number, and give scsi
host number, bus, target, lun, devicetype, and 8-byte cciss LUNID for each
tapedrive/medium changer attached to a controller

For instance:

# cat /proc/scsi/cciss/2
cciss0: SCSI host: 2
c2b0t0l0 01 0x0000000000000001
Signed-off-by: NStephen M. Cameron <steve.cameron@hp.com>
Signed-off-by: NMike Miller <mike.miller@hp.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This patch adds support for "One Button Disaster Recovery" devices to the
cciss driver.  (OBDR devices are tape drives which can pretend to be cd-rom
devices temporarily.  Once booted the device can be reverted to a tape drive
and data recovery operations can be automatically begun.)

This is an enhancement request by a vendor/partner working on One Button
Disaster Recovery.
Signed-off-by: NStephen M. Cameron <steve.cameron@hp.com>
Signed-off-by: NMike Miller <mike.miller@hp.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The CCISS driver seems to loose track of DMA mappings created by it's
fill_cmd() routine.  Neither callers of this routine are extracting the DMA
address created in order to do the unmap.

Instead, they simply try to unmap 0x0.  It's easy to see this problem on an
x86_64 system when using the "swiotlb=force" boot option.  In this case, the
driver is leaking resources of the swiotlb and not causing a sync of the
bounce buffer.
Signed-off-by: NAlex Williamson <alex.williamson@hp.com>
Signed-off-by: NMike Miller <mike.miller@hp.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This patch fixes a bug in cciss_remove_one.  A set of braces was missing for
the if statement causing an Oops on driver unload.
Signed-off-by: NMike Miller <mike.miller@hp.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This patch changes the way we complete commands.  In the old method when we
got a completion we searched our command list from the top until we find it.

This method uses a tag associated with each command (not SCSI command tagging)
to index us directly to the completed command.  This helps performance.
Signed-off-by: NDon Brace <dab@hp.com>
Signed-off-by: NMike Miller <mike.miller@hp.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This patch removes a couple of functions dealing with configuration and
replaces them with new functions.  This implementation fixes some bugs
associated with the ACUXE.  It also allows a logical volume to be removed from
the middle without deleting all volumes behind it.

If a user has 5 logical volumes and decides he wants to reconfigure volume
number 3, he can now do that without removing volumes 4 & 5 first.  This code
has been tested in our labs against all application software.
Signed-off-by: NChase Maupin <chase.maupin@hp.com>
Signed-off-by: NMike Miller <mike.miller@hp.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This patch adds a flag called busy_initializing.  If there are multiple
controllers in a server AND the HP agents are running it's possible the agents
may try to poll a card that is still initializing if the driver is removed and
then added again.
Signed-off-by: NDon Brace <dab@hp.com>
Signed-off-by: NMike Miller <mike.miller@hp.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This patch adds new PCI and subsystem ID's that finally made the spec.  It
also include a name change for one controller.  I know there's a lot of
duplicat names but the fw folks wanted this for the different implementations.

Even though the same ASIC is used it may be embedded on some platforms,
standup card in others, and a mezzanine in other servers.
Signed-off-by: NMike Miller <mike.miller@hp.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

We seem to use both asm-offsets.* and asm_offsets.*
Signed-off-by: NMichal K. K. Piotrowski <michal.k.k.piotrowski@gmail.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

reiserfs should use mark_inode_dirty during reiserfs_file_write and
reiserfs_commit_write.  This makes sure the inode is properly flagged as
dirty, which is used during O_SYNC to decide when to trigger log commits.

This patch also removes the O_SYNC check from reiserfs_commit_write, since
that gets dealt with properly at higher layers once we start using
mark_inode_dirty.

Thanks to Hifumi Hisashi <hifumi.hisashi@lab.ntt.co.jp> for catching this.
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Use the add_taint() interface for setting tainted bit flags instead of
doing it manually.
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Remove check_region references from comments and printk statements so that
searching for real users of this deprecated function gets easier.
Signed-off-by: NPeter Osterlund <petero2@telia.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

These functions don't need schedule_timeout()'s barrier.
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Explain the mysteries of set_current_state().

Quoth Linus:

 The scheduler itself never needs the memory barrier at all.

 The barrier is needed only if the user itself ends up testing some other
 thing afterwards, ie if you have

 	set_process_state(TASK_INTERRUPTIBLE);
 	if (still_need_to_sleep())
 		schedule();

 then the "still_need_to_sleep()" thing may test flags and wakeup events,
 and then you _may_ want to (and often do) make sure that the write of
 TASK_INTERRUPTIBLE is serialized wrt the reads of any wakeup data (since
 the wakeup may have happened on another CPU).

 So the comment is somewhat wrong. We don't really _care_ whether the state
 propagates out to other CPU's since all of our actions are purely local,
 and there is nothing we do that is conditional on any other CPU: we're
 going to sleep unconditionally, and the scheduler only cares about _our_
 state, not about somebody elses state.
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Force a compiler error instead of a link error, because they are easier to
track down.  Idea stolen from code by Jan Beulich <jbeulich@novell.com>

If the argument to BUILD_BUG_ON evaluates to non-zero the compiler will do:

	t.c:6: error: size of array `type name' is negative

(surprised that gcc doesn't have an extension for this)
Signed-off-by: N"Andi Kleen" <ak@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Besides freeing initrd memory, also clear out the now dangling pointers to
it, to make sure accidental late use attempts can be detected.
Signed-off-by: NJan Beulich <jbeulich@novell.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

When open(O_CREAT) is called and the error, ENFILE, is returned, the file
may be created anyway.  This is counter intuitive, against the SUS V3
specification, and may cause applications to misbehave if they are not
coded correctly to handle this semantic.  The SUS V3 specification
explicitly states "No files shall be created or modified if the function
returns -1.".

The error, ENFILE, is used to indicate the system wide open file table is
full and no more file structs can be allocated.

This is due to an ordering problem.  The entry in the directory is created
before the file struct is allocated.  If the allocation for the file struct
fails, then the system call must return an error, but the directory entry
was already created and can not be safely removed.

The solution to this situation is relatively easy.  The file struct should
be allocated before the directory entry is created.  If the allocation
fails, then the error can be returned directly.  If the creation of the
directory entry fails, then the file struct can be easily freed.
Signed-off-by: NPeter Staubach <staubach@redhat.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Removed ppc32 architecture specific users of asm/segment.h and
asm-ppc/segment.h itself
Signed-off-by: NKumar Gala <kumar.gala@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>