Commit Graph

834 Commits

Author SHA1 Message Date
Kay Sievers edfaa7c365 Driver core: convert block from raw kobjects to core devices
This moves the block devices to /sys/class/block. It will create a
flat list of all block devices, with the disks and partitions in one
directory. For compatibility /sys/block is created and contains symlinks
to the disks.

  /sys/class/block
  |-- sda -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda
  |-- sda1 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda1
  |-- sda10 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda10
  |-- sda5 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda5
  |-- sda6 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda6
  |-- sda7 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda7
  |-- sda8 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda8
  |-- sda9 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda9
  `-- sr0 -> ../../devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0/block/sr0

  /sys/block/
  |-- sda -> ../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda
  `-- sr0 -> ../devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0/block/sr0

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:36 -08:00
Greg Kroah-Hartman 89c4260664 Kobject: change drivers/block/pktcdvd.c to use kobject_init_and_add
Stop using kobject_register, as this way we can control the sending of
the uevent properly, after everything is properly initialized.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:29 -08:00
Tony Jones 6013c12be8 pktcdvd: Convert from class_device to device for block/pktcdvd
struct class_device is going away, this converts the code to use struct
device instead.

Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Peter Osterlund <petero2@telia.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:06 -08:00
Tony Jones aa27582614 paride: Convert from class_device to device for block/paride
struct class_device is going away, this converts the code to use struct
device instead.

Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Tim Waugh <tim@cyberelk.net>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:06 -08:00
Tony Jones 7ea7ed01ff aoechr: Convert from class_device to device
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Sam Hopkins <sah@coraid.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:05 -08:00
Randy Dunlap 7d1fd970e4 cciss: section mismatch
Mark cciss_pci_init() as __devinit, to fix section mismatch warning.

WARNING: vmlinux.o(.text+0x601fc9): Section mismatch: reference to .init.text: (between 'cciss_pci_init' and 'cciss_getgeometry')

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: <mike.miller@hp.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-14 08:52:22 -08:00
Jens Axboe a24eab1ed5 loop: fix bad bio_alloc() nr_iovec request
Don't allocate room for an iovec when it is not needed.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-01-11 10:14:40 +01:00
Randy Dunlap 458cf5e9b6 Cleanup umem driver: fix most checkpatch warnings, conform to kernel
coding style.

  linux-2.6.24-rc5-git3> checkpatch.pl-next  patches/block-umem-ckpatch.patch
  total: 0 errors, 5 warnings, 530 lines checked

All of these are line-length warnings.

Only change in generated object file is due to not initializing a
static global variable to 0.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-12-18 08:29:28 +01:00
Dave Young d17a18dd92 pktcdvd: add kobject_put when kobject register fails
In kobject_register, the kobject reference is get in kobject_init, and then
kobject_add.  If kobject_add fail, it will only cleanup the reference got
by itself.

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Greg KH <greg@kroah.com>
Cc: Peter Osterlund <petero2@telia.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-17 19:28:16 -08:00
Neil Brown 794e64d5e9 Fix NULL dereference in umem.c
Fix NULL dereference in umem.c

Signed-off-by: Neil Brown <neilb@suse.de>
Tested-by: Dave Chinner <dgc@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-10 19:43:55 -08:00
Andrew Morton 43cbe2cbdd aoe: properly initialise the request_queue's backing_dev_info
AOE forgot to initialise its queue's backing_dev_info, so kernels crash.
(http://bugzilla.kernel.org/show_bug.cgi?id=9482)

Fix that and consoldate aoeblk_gdalloc()'s error handling.

Thanks be to Jon for reporting and testing.

Cc: "Ed L. Cashin" <ecashin@coraid.com>
Cc: <stable@kernel.org>
Cc: "Jon Nelson" <jnelson@jamponi.net>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-10 19:43:54 -08:00
Rusty Russell 74b2553f1d virtio: fix module/device unloading
The virtio code never hooked through the ->remove callback.  Although
noone supports device removal at the moment, this code is already
needed for module unloading.

This of course also revealed bugs in virtio_blk, virtio_net and lguest
unloading paths.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-11-19 11:20:42 +11:00
Christian Borntraeger 5d0360ee96 rd: fix data corruption on memory pressure
We have seen ramdisk based install systems, where some pages of mapped
libraries and programs were suddendly zeroed under memory pressure.  This
should not happen, as the ramdisk avoids freeing its pages by keeping them
dirty all the time.

It turns out that there is a case, where the VM makes a ramdisk page clean,
without telling the ramdisk driver.  On memory pressure shrink_zone runs
and it starts to run shrink_active_list.  There is a check for
buffer_heads_over_limit, and if true, pagevec_strip is called.
pagevec_strip calls try_to_release_page.  If the mapping has no releasepage
callback, try_to_free_buffers is called.  try_to_free_buffers has now a
special logic for some file systems to make a dirty page clean, if all
buffers are clean.  Thats what happened in our test case.

The simplest solution is to provide a noop-releasepage callback for the
ramdisk driver.  This avoids try_to_free_buffers for ramdisk pages.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Nick Piggin <npiggin@suse.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:42 -08:00
Ondrej Zary e62aa046e1 paride: pf driver fixes
The pf driver for parallel port floppy drives seems to be broken.  At least
with Imation SuperDisk with EPAT chip, the driver calls pi_connect() and
pi_disconnect after each transferred sector.  At least with EPAT, this
operation is very expensive - causes drive recalibration.  Thus, transferring
even a single byte (dd if=/dev/pf0 of=/dev/null bs=1 count=1) takes 20
seconds, making the driver useless.

The pf_next_buf() function seems to be broken as it returns 1 always (except
when pf_run is non-zero), causing the loop in do_pf_read_drq (and
do_pf_write_drq) to be executed only once.

The following patch fixes this problem.  It also fixes swapped descriptions in
pf_lock() function and removes DBMSG macro, which seems useless.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:39 -08:00
Trond Myklebust 91cf45f02a [NET]: Add the helper kernel_sock_shutdown()
...and fix a couple of bugs in the NBD, CIFS and OCFS2 socket handlers.

Looking at the sock->op->shutdown() handlers, it looks as if all of them
take a SHUT_RD/SHUT_WR/SHUT_RDWR argument instead of the
RCV_SHUTDOWN/SEND_SHUTDOWN arguments.
Add a helper, and then define the SHUT_* enum to ensure that kernel users
of shutdown() don't get confused.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Mark Fasheh <mark.fasheh@oracle.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-12 18:10:39 -08:00
Tejun Heo fffe487d59 pktcdvd: fix BUG caused by sysfs module reference semantics change
pkt_setup_dev() expects module reference to be held on invocation.
This used to be true for sysfs callbacks but not anymore.  Test and
grab module reference around pkt_setup_dev() in
class_pktcdvd_store_add().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Peter Osterlund <petero2@telia.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-11-08 08:00:24 +01:00
Roel Kluin b07989f51e paride: fix 'and' typo in drivers/block/paride/pt.c
Fix 'and' typo (PT_WRITE_OK is defined 2)

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-05 15:12:32 -08:00
Mike Miller bd4f36d6da cciss: update copyright notices
This patch updates the copyright information for the cciss driver. It
includes extending the year to 2007 (how timely) and some minor corrections
deemed necessary by HP legal and the Open Source Review Board. Please
consider this patch for inclusion.

Signed-off-by: Mike Miller <mike.miller@hp.com>
--------------------------------------------------------------------------------
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-29 11:33:05 +01:00
FUJITA Tomonori 4f33a9d9a4 ub: add sg_init_table for sense and read capacity commands
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-25 09:17:03 +02:00
Jens Axboe 3d1266c704 SG: audit of drivers that use blk_rq_map_sg()
They need to properly init the sg table, or blk_rq_map_sg() will
complain if CONFIG_DEBUG_SG is set.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-24 13:21:21 +02:00
Jens Axboe 642f149031 SG: Change sg_set_page() to take length and offset argument
Most drivers need to set length and offset as well, so may as well fold
those three lines into one.

Add sg_assign_page() for those two locations that only needed to set
the page, where the offset/length is set outside of the function context.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-24 11:20:47 +02:00
David Miller d91c5e8839 More SG build fixes
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
2007-10-24 08:46:01 +02:00
Ralf Baechle 117636092a [PATCH] Fix breakage after SG cleanups
Commits

  58b053e4ce ("Update arch/ to use sg helpers")
  45711f1af6 ("[SG] Update drivers to use sg helpers")
  fa05f1286b ("Update net/ to use sg helpers")

converted many files to use the scatter gather helpers without ensuring
that the necessary headerfile <linux/scatterlist> is included.  This
happened to work for ia64, powerpc, sparc64 and x86 because they
happened to drag in that file via their <asm/dma-mapping.h>.

On most of the others this probably broke.

Instead of increasing the header file spider web I choose to include
<linux/scatterlist.h> directly into the affectes files.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23 12:02:39 -07:00
Rusty Russell 0ca49ca946 Remove old lguest bus and drivers.
This gets rid of the lguest bus, drivers and DMA mechanism, to make
way for a generic virtio mechanism.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23 15:49:55 +10:00
Rusty Russell e467cde238 Block driver using virtio.
The block driver uses scatter-gather lists with sg[0] being the
request information (struct virtio_blk_outhdr) with the type, sector
and inbuf id.  The next N sg entries are the bio itself, then the last
sg is the status byte.  Whether the N entries are in or out depends on
whether it's a read or a write.

We accept the normal (SCSI) ioctls: they get handed through to the other
side which can then handle it or reply that it's unsupported.  It's
not clear that this actually works in general, since I don't know
if blk_pc_request() requests have an accurate rq_data_dir().

Although we try to reply -ENOTTY on unsupported commands, ioctl(fd,
CDROMEJECT) returns success to userspace.  This needs a separate
patch.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jens Axboe <jens.axboe@oracle.com>
2007-10-23 15:49:54 +10:00
Jens Axboe 45711f1af6 [SG] Update drivers to use sg helpers
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22 21:19:53 +02:00
Denis Cheng d489202ea2 remove unused return within void return function
Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-20 02:18:21 +02:00
Adrian Bunk d96267ae46 remove duplicate MMAPPER Kconfig option
This option is already in arch/um/Kconfig.char

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Jeff Dike <jdike@addtoit.com>
2007-10-20 01:01:08 +02:00
Jan Engelhardt 96de0e252c Convert files to UTF-8 and some cleanups
* Convert files to UTF-8.

  * Also correct some people's names
    (one example is Eißfeldt, which was found in a source file.
    Given that the author used an ß at all in a source file
    indicates that the real name has in fact a 'ß' and not an 'ss',
    which is commonly used as a substitute for 'ß' when limited to
    7bit.)

  * Correct town names (Goettingen -> Göttingen)

  * Update Eberhard Mönkeberg's address (http://lkml.org/lkml/2007/1/8/313)

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 23:21:04 +02:00
Robert P. J. Day 3a4fa0a25d Fix misspellings of "system", "controller", "interrupt" and "necessary".
Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 23:10:43 +02:00
Patrick Ringl 2e977c85d7 fix typos in drivers/block/Kconfig
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 23:05:02 +02:00
Pavel Emelyanov ba25f9dcc4 Use helpers to obtain task pid in printks
The task_struct->pid member is going to be deprecated, so start
using the helpers (task_pid_nr/task_pid_vnr/task_pid_nr_ns) in
the kernel.

The first thing to start with is the pid, printed to dmesg - in
this case we may safely use task_pid_nr(). Besides, printks produce
more (much more) than a half of all the explicit pid usage.

[akpm@linux-foundation.org: git-drm went and changed lots of stuff]
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:43 -07:00
Joe Perches 898eb71cb1 Add missing newlines to some uses of dev_<level> messages
Found these while looking at printk uses.

Add missing newlines to dev_<level> uses
Add missing KERN_<level> prefixes to multiline dev_<level>s
Fixed a wierd->weird spelling typo
Added a newline to a printk

Signed-off-by: Joe Perches <joe@perches.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Tilman Schmidt <tilman@imap.cc>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Greg KH <greg@kroah.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: James Smart <James.Smart@Emulex.Com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 14:37:28 -07:00
Linus Torvalds b6257a9036 Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block:
  [SCSI] Remove full sg table memset()
  [SCSI] ide-scsi: remove usage of sg_last()
  Fix loop terminating conditions in fill_sg().
  [BLOCK] Clear sg entry before filling in blk_rq_map_sg()
  IA64: iommu uses sg_next with an invalid sg element
  cciss: disable DMA refetch on Smart Array P600
  swiotlb: fix map_sg failure handling
  SPARC64: fix iommu sg chaining
  [SCSI] ide-scsi: use scsi_sg_count() instead of ->use_sg
2007-10-17 09:08:13 -07:00
Jesper Juhl fdc1ca8aba floppy: remove register keyword use from floppy driver
The floppy drive is slow.  These days I see absolutely no good reason why the
floppy driver should try to gain a tiny bit of speed by telling gcc to
optimize access to some variables via the register keyword.  Better to just
leave gcc free to do whatever optimizations it deduces to be sane and not
hamper it by telling it that some variables in the floppy driver are special
and need to be fast (they don't).

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:43:03 -07:00
Jesper Juhl aee9041c5f floppy: remove dead/commented out code from floppy driver
A good initial step for a cleanup seems to me to be getting rid of old dead
code.  This stuff is either commented out or inside '#if 0' so it is not
currently in use at all, let's just get rid of it once and for all.  That's a
few lines less to deal with.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:43:03 -07:00
Jesper Juhl 06f748c475 floppy: do a very minimal style cleanup of the floppy driver
Yes, some of this will likely be replaced in later patches, but I do not see
anyone else coming out of the woodwork with any patches for this driver, so
I'll ignore comments about churn.  I want to get this driver cleaned up, and
if I'm going to do so I want to start with this basic style cleanup to reduce
the reading pain a bit.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:43:03 -07:00
Robert P. J. Day fac8b209b1 Remove final traces of long-deprecated "ramdisk" kernel parm
Since the "ramdisk" kernel parameter has been officially deprecated
since at least 2.6.18, might as well finally get rid of it.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:56 -07:00
Adrian Bunk 5a9df732b6 drivers/block/cciss.c: fix check-after-use
The Coverity checker spotted that we have already oops'ed if "disk"
was NULL.

Since "disk" being NULL seems impossible at this point this patch
removes the NULL check.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:55 -07:00
Steve Cameron 1a614f5051 cciss: fix error reporting for SG_IO
This fixes a problem with the way cciss was filling out the "errors" field
of the request structure upon completion of requests.  Previously, it just
put a 1 or a 0 in there and used the negation of this as the uptodate
parameter to one of the functions in the block layer, being a block device.
 For the SG_IO ioctl, this was not sufficient, and we noticed that, for
example, sg_turs from sg3_utils did not correctly detect problems due to
cciss having set rq->errors incorrectly.

Signed-off-by: Stephen M. Cameron <steve.cameron@hp.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:55 -07:00
Paul Clements 7fdfd4065c NBD: allow hung network I/O to be cancelled
Allow NBD I/O to be cancelled when a network outage occurs.  Previously, I/O
would just hang, and if enough I/O was hung in nbd, the system (at least
user-level) would completely hang until a TCP timeout (default, 15 minutes)
occurred.

The patch introduces a new ioctl NBD_SET_TIMEOUT that allows a transmit
timeout value (in seconds) to be specified.  Any network send that exceeds the
timeout will be cancelled and the nbd connection will be shut down.  I've
tested with various timeout values and 6 seconds seems to be a good choice for
the timeout.  If the NBD_SET_TIMEOUT ioctl is not called, you get the old (I/O
hang) behavior.

Signed-off-by: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:55 -07:00
Paul Clements 4b86a87256 NBD: set uninitialized devices to size 0
This fixes errors with utilities (such as LVM's vgscan) that try to scan all
devices.  Previously this would generate read errors when uninitialized nbd
devices were scanned:

# vgscan
   Reading all physical volumes.  This may take a while...
   /dev/nbd0: read failed after 0 of 1024 at 0: Input/output error
   /dev/nbd0: read failed after 0 of 1024 at 509804544: Input/output error
   /dev/nbd0: read failed after 0 of 2048 at 0: Input/output error
   /dev/nbd1: read failed after 0 of 1024 at 509804544: Input/output error
   /dev/nbd1: read failed after 0 of 2048 at 0: Input/output error

 From now on, uninitialized nbd devices will have size zero, which
prevents these errors.

Signed-off-by: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:55 -07:00
Jan Beulich 2e9c47cd4d floppy: tolerate DMA channel unavailability
The floppy driver is already written to be able to operate in virtual DMA
mode.  Thus it can easily be adjusted to tolerate failure from
fd_request_dma() as long as virtual DMA mode is not disallowed.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:55 -07:00
Ed L. Cashin abdbf94d7c aoe: remove unecessary wrapper function
We can just use skb_mac_header now, and we don't need a wrapper function to
perform the cast.  Instead of requiring the reader to check aoe.h to look
up what an aoe_hdr function does, I'd rather do without it.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:52 -07:00
Diego Woitasen 759d7c6c47 Remove unneeded lock_kernel() in driver/block/loop.c
Signed-off-by: Diego Woitasen <diego@woitasen.com.ar>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:48 -07:00
Denis Cheng 0cbc591bf8 nbd: change a parameter's type to remove a memcpy call
This memcpy looks so strange, in fact it's merely a pointer dereference, so I
change the parameter's type to refer it more directly, this could make the
memcpy not needed anymore.

In the function nbd_read_stat where nbd_find_request is only once called, the
parameter served should be transformed accordingly.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Cc: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:47 -07:00
Denis Cheng d2c9740b49 nbd: use list_for_each_entry_safe to make it more consolidated and readable
Thus the traverse of the loop may delete nodes, use the safe version.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Cc: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:47 -07:00
Peter Zijlstra e0bf68ddec mm: bdi init hooks
provide BDI constructor/destructor hooks

[akpm@linux-foundation.org: compile fix]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:45 -07:00
Mike Miller (OS Dev) 8bf50f71cb cciss: disable DMA refetch on Smart Array P600
This patch disables DMA refetch in the PCI bridge. We have disabled DMA
prefetch for quite some time. Testing with XEN revealed another ASIC bug. If
dom0 resides on a P600 the board can can an MCA bi accessing invalid memory
addresses. Apparently, we need to disable both prefetch and refetch.
My understanding is a refetch operation should not occur but it is a valid
thing to do if prefetched data is no longer available for whatever reason.
Please consider this patch for inclusion.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Alex Chiang <achiang@hp.com>

--------------------------------------------------------------------------------
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-17 10:10:04 +02:00
Linus Torvalds 92d15c2ccb Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: (63 commits)
  Fix memory leak in dm-crypt
  SPARC64: sg chaining support
  SPARC: sg chaining support
  PPC: sg chaining support
  PS3: sg chaining support
  IA64: sg chaining support
  x86-64: enable sg chaining
  x86-64: update pci-gart iommu to sg helpers
  x86-64: update nommu to sg helpers
  x86-64: update calgary iommu to sg helpers
  swiotlb: sg chaining support
  i386: enable sg chaining
  i386 dma_map_sg: convert to using sg helpers
  mmc: need to zero sglist on init
  Panic in blk_rq_map_sg() from CCISS driver
  remove sglist_len
  remove blk_queue_max_phys_segments in libata
  revert sg segment size ifdefs
  Fixup u14-34f ENABLE_SG_CHAINING
  qla1280: enable use_sg_chaining option
  ...
2007-10-16 10:09:16 -07:00
Dmitry Monakhov 8268f5a741 deny partial write for loop dev fd
Partial write can be easily supported by LO_CRYPT_NONE mode, but it is not
easy in LO_CRYPT_CRYPTOAPI case, because of its block nature.  I don't know
who still used cryptoapi, but theoretically it is possible.  So let's leave
things as they are.  Loop device doesn't support partial write before
Nick's "write_begin/write_end" patch set, and let's it behave the same way
after.

Signed-off-by: Dmitriy Monakhov <dmonakhov@openvz.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:55 -07:00
Nick Piggin afddba49d1 fs: introduce write_begin, write_end, and perform_write aops
These are intended to replace prepare_write and commit_write with more
flexible alternatives that are also able to avoid the buffered write
deadlock problems efficiently (which prepare_write is unable to do).

[mark.fasheh@oracle.com: API design contributions, code review and fixes]
[akpm@linux-foundation.org: various fixes]
[dmonakhov@sw.ru: new aop block_write_begin fix]
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Dmitriy Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:55 -07:00
Jens Axboe 3eed13fd93 Merge branch 'sglist-arch' into for-linus 2007-10-16 12:29:34 +02:00
Jens Axboe a39d113936 Merge branch 'barrier' into for-linus 2007-10-16 12:29:29 +02:00
Lee Schermerhorn a683d652d3 Panic in blk_rq_map_sg() from CCISS driver
New scatter/gather list chaining [sg_next()] treats 'page' member of
struct scatterlist with low bit set [0x01] as a chain pointer to
another struct scatterlist [array].  The CCISS driver request function
passes an uninitialized, temporary, on-stack scatterlist array to
blk_rq_map_sq().  sg_next() interprets random data on the stack as a
chain pointer and eventually tries to de-reference an invalid pointer,
resulting in:

[<ffffffff8031dd70>] blk_rq_map_sg+0x70/0x170
PGD 6090c3067 PUD 0
Oops: 0000 [1] SMP
last sysfs file: /block/cciss!c0d0/cciss!c0d0p1/dev
CPU 6
Modules linked in: ehci_hcd ohci_hcd uhci_hcd
Pid: 1, comm: init Not tainted 2.6.23-rc6-mm1 #3
RIP: 0010:[<ffffffff8031dd70>] [<ffffffff8031dd70>] blk_rq_map_sg+0x70/0x170
RSP: 0018:ffff81060901f768 EFLAGS: 00010206
RAX: 000000040b161000 RBX: ffff81060901f7d8 RCX: 000000040b162c00
RDX: 0000000000000000 RSI: ffff81060b13a260 RDI: ffff81060b139600
RBP: 0000000000001400 R08: 00000000fffffffe R09: 0000000000000400
R10: 0000000000000000 R11: 000000040b163000 R12: ffff810102fe0000
R13: 0000000000000001 R14: 0000000000000001 R15: 00001e0000000000
FS: 00000000026108f0(0063) GS:ffff810409000b80(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 000000010000001e CR3: 00000006090c6000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process init (pid: 1, threadinfo ffff81060901e000, task ffff810409020800)
last branch before last exception/interrupt
from [<ffffffff8031de0a>] blk_rq_map_sg+0x10a/0x170
to [<ffffffff8031dd70>] blk_rq_map_sg+0x70/0x170
Stack: 000000018068ea00 ffff810102fe0000 0000000000000000 ffff810011400000
0000000000000002 0000000000000000 ffff81040b172000 ffffffff803acd3d
0000000000003ec1 ffff8106090d5000 ffff8106090d5000 ffff810102fe0000
Call Trace:
[<ffffffff803acd3d>] do_cciss_request+0x15d/0x4c0
[<ffffffff80298968>] new_slab+0x1c8/0x270
[<ffffffff80298ffd>] __slab_alloc+0x22d/0x470
[<ffffffff8027327b>] mempool_alloc+0x4b/0x130
[<ffffffff8032b21e>] cfq_set_request+0xee/0x380
[<ffffffff8027327b>] mempool_alloc+0x4b/0x130
[<ffffffff8031ff98>] get_request+0x168/0x360
[<ffffffff80331b0d>] rb_insert_color+0x8d/0x110
[<ffffffff8031cfd8>] elv_rb_add+0x58/0x60
[<ffffffff8032a329>] cfq_add_rq_rb+0x69/0xa0
[<ffffffff8031c1ab>] elv_merged_request+0x5b/0x60
[<ffffffff803224fd>] __make_request+0x23d/0x650
[<ffffffff80298ffd>] __slab_alloc+0x22d/0x470
[<ffffffff80270000>] generic_write_checks+0x140/0x190
[<ffffffff8031f012>] generic_make_request+0x1c2/0x3a0
<etc>
Kernel panic - not syncing: Attempted to kill init!

This patch initializes the tmp_sg array to zeroes.  Perhaps not the ultimate
fix, but an effective work-around.  I can now boot 23-rc6-mm1 on an HP
Proliant x86_64 with CCISS boot disk.

Signed-off-by:  Lee Schermerhorn <lee.schermerhorn@hp.com>

 drivers/block/cciss.c |    1 +
 1 file changed, 1 insertion(+)
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16 11:24:44 +02:00
Laurent Riffard 7e3da6c4b9 pktcdvd: don't rely on bio_init() preserving bio->bi_destructor
Signed-off-by: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16 11:05:09 +02:00
Jens Axboe 761a15e7ac pktcdvd: don't rely on bio_init() preserving bio->bi_io_vec
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16 11:05:08 +02:00
Jens Axboe fd5d806266 block: convert blkdev_issue_flush() to use empty barriers
Then we can get rid of ->issue_flush_fn() and all the driver private
implementations of that.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16 11:05:02 +02:00
Jeff Garzik 87ad900164 drivers/block/cpqarray,cciss: kill unused var
The recent bio work and subsequent fixups created unused variables.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16 09:59:55 +02:00
Al Viro b4482a4b2e more trivial signedness fixes in drivers
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:52 -07:00
Robert P. J. Day cebe0fe70f [S390] Remove obsolete recommendation for 8M ramdisk size.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:09 +02:00
Linus Torvalds e86908614f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits)
  [POWERPC] Add memchr() to the bootwrapper
  [POWERPC] Implement logging of unhandled signals
  [POWERPC] Add legacy serial support for OPB with flattened device tree
  [POWERPC] Use 1TB segments
  [POWERPC] XilinxFB: Allow fixed framebuffer base address
  [POWERPC] XilinxFB: Add support for custom screen resolution
  [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters
  [POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci
  [POWERPC] 4xx: Kilauea defconfig file
  [POWERPC] 4xx: Kilauea DTS
  [POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x
  [POWERPC] 4xx: Add AMCC 405EX support to cputable.c
  [POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable
  [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers
  [POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig
  [POWERPC] 85xx: Killed <asm/mpc85xx.h>
  [POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS
  [POWERPC] 85xx: Convert mpc8560ads to the new CPM binding.
  [POWERPC] mpc8272ads: Remove muram from the CPM reg property.
  [POWERPC] Make clockevents work on PPC601 processors
  ...

Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.
2007-10-11 21:55:47 -07:00
Linus Torvalds 038a5008b2 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (867 commits)
  [SKY2]: status polling loop (post merge)
  [NET]: Fix NAPI completion handling in some drivers.
  [TCP]: Limit processing lost_retrans loop to work-to-do cases
  [TCP]: Fix lost_retrans loop vs fastpath problems
  [TCP]: No need to re-count fackets_out/sacked_out at RTO
  [TCP]: Extract tcp_match_queue_to_sack from sacktag code
  [TCP]: Kill almost unused variable pcount from sacktag
  [TCP]: Fix mark_head_lost to ignore R-bit when trying to mark L
  [TCP]: Add bytes_acked (ABC) clearing to FRTO too
  [IPv6]: Update setsockopt(IPV6_MULTICAST_IF) to support RFC 3493, try2
  [NETFILTER]: x_tables: add missing ip6t_modulename aliases
  [NETFILTER]: nf_conntrack_tcp: fix connection reopening
  [QETH]: fix qeth_main.c
  [NETLINK]: fib_frontend build fixes
  [IPv6]: Export userland ND options through netlink (RDNSS support)
  [9P]: build fix with !CONFIG_SYSCTL
  [NET]: Fix dev_put() and dev_hold() comments
  [NET]: make netlink user -> kernel interface synchronious
  [NET]: unify netlink kernel socket recognition
  [NET]: cleanup 3rd argument in netlink_sendskb
  ...

Fix up conflicts manually in Documentation/feature-removal-schedule.txt
and my new least favourite crap, the "mod_devicetable" support in the
files include/linux/mod_devicetable.h and scripts/mod/file2alias.c.

(The latter files seem to be explicitly _designed_ to get conflicts when
different subsystems work with them - that have an absolutely horrid
lack of subsystem separation!)

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-11 19:40:14 -07:00
Stephen Rothwell 8251b4c481 [POWERPC] iSeries: Move viodasd probing
This way we only have entries in the device tree for disks that actually
exist.  A slight complication is that disks may be attached to LPARs
at runtime.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11 20:40:48 +10:00
Eric W. Biederman 881d966b48 [NET]: Make the device list and device lookups per namespace.
This patch makes most of the generic device layer network
namespace safe.  This patch makes dev_base_head a
network namespace variable, and then it picks up
a few associated variables.  The functions:
dev_getbyhwaddr
dev_getfirsthwbytype
dev_get_by_flags
dev_get_by_name
__dev_get_by_name
dev_get_by_index
__dev_get_by_index
dev_ioctl
dev_ethtool
dev_load
wireless_process_ioctl

were modified to take a network namespace argument, and
deal with it.

vlan_ioctl_set and brioctl_set were modified so their
hooks will receive a network namespace argument.

So basically anthing in the core of the network stack that was
affected to by the change of dev_base was modified to handle
multiple network namespaces.  The rest of the network stack was
simply modified to explicitly use &init_net the initial network
namespace.  This can be fixed when those components of the network
stack are modified to handle multiple network namespaces.

For now the ifindex generator is left global.

Fundametally ifindex numbers are per namespace, or else
we will have corner case problems with migration when
we get that far.

At the same time there are assumptions in the network stack
that the ifindex of a network device won't change.  Making
the ifindex number global seems a good compromise until
the network stack can cope with ifindex changes when
you change namespaces, and the like.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:10 -07:00
Eric W. Biederman e730c15519 [NET]: Make packet reception network namespace safe
This patch modifies every packet receive function
registered with dev_add_pack() to drop packets if they
are not from the initial network namespace.

This should ensure that the various network stacks do
not receive packets in a anything but the initial network
namespace until the code has been converted and is ready
for them.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:08 -07:00
Grant Likely d2bbf3da37 Sysace: Don't enable IRQ until after interrupt handler is registered
The previous patch to move the interrupt handler registration moved it
below enabling interrupts which could be a problem if the device is on
a shared interrupt line.  This patch fixes the order.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:26:00 +02:00
Grant Likely b5515d86f2 Sysace: sparse fixes
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:59 +02:00
Grant Likely 34e1b83413 Sysace: Minor coding convention fixup
Put function call and return code test on separate lines.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:59 +02:00
Jeff Garzik cb3503ca54 drivers/block/umem: use DRIVER_NAME where appropriate
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 09:25:59 +02:00
Jeff Garzik 4e953a2162 drivers/block/umem: trim trailing whitespace
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 09:25:59 +02:00
Jeff Garzik ee4a7b6874 drivers/block/umem: minor cleanups
* tab-align DRIVER_*, pci_driver entries

* reduced wasted memory by killing unused struct cardinfo members

* move free_irq() call above resource unmap, to fix tiny window where
  irq handler may access recently-unmapped memory

* propagate pci_enable_device() return value

* use pci_request_regions, pci_release_regions() for resource reservation

* call pci_disable_device() in pci_driver::remove()

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 09:25:59 +02:00
Jeff Garzik 4e0af881af drivers/block/umem: use dev_printk()
dev_printk() gives us a consistent prefix (driver name + PCI bus id),
which allows us to eliminate the hand-rolled one.

Also allows us to eliminate card->card_number, which was used solely in
printk() calls.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 09:25:59 +02:00
Jeff Garzik 3084f0c610 drivers/block/umem: move private include away from include/linux
Move include/linux/umem.h to drivers/block, as umem.c is the only user,
and its not an exported header.

Move the PCI_{VENDOR,DEVICE}_ID_* constants to include/linux/pci_ids.h.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 09:25:59 +02:00
Grant Likely ed155a95a4 Sysace: Labels in C code should not be indented.
Remove the indentation on labels

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:59 +02:00
Grant Likely 95e896c35f Sysace: Add of_platform_bus binding
The of_platform bus binding is needed to make the device driver usable
under arch/powerpc.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:59 +02:00
Grant Likely 32f6fff47d Sysace: Move IRQ handler registration to occur after FSM is initialized
The FSM needs to be initialized before it is safe to call the ISR

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:58 +02:00
Grant Likely 4a24d8610d Sysace: minor rework and cleanup changes
Miscellanious rework to the sysace driver; Not critical, but makes the
subsequent addition of the of_platform bus binding a wee bit cleaner

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:58 +02:00
Grant Likely 1b45546654 Sysace: Move structure allocation from bus binding into common code
Split the determination of device registers/irqs/etc from the actual
allocation and initialization of the device structure.  This cleans
up the code a bit in preparation to add an of_platform bus binding

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:58 +02:00
Grant Likely edec49616c Sysace: Use the established platform bus api
SystemACE uses the platform bus binding, but it doesn't use the
platform bus API.  Move to using the correct API for consistency
sake and future proofing against platform bus changes.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:57 +02:00
NeilBrown 6712ecf8f6 Drop 'size' argument from bio_endio and bi_end_io
As bi_end_io is only called once when the reqeust is complete,
the 'size' argument is now redundant.  Remove it.

Now there is no need for bio_endio to subtract the size completed
from bi_size.  So don't do that either.

While we are at it, change bi_end_io to return void.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:57 +02:00
Jens Axboe 6c92e699b5 Fixup rq_for_each_segment() indentation
Remove one level of nesting where appropriate.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:56 +02:00
NeilBrown eea9befacc Fix various abuse of bio fields in umem.c
umem.c:
  advances bi_idx and bi_sector to track where it is up to.
   But it is only ever doing this on one bio, so the updated
   fields can easily be kept elsewhere (current_*).
  updates bi_size, but never uses the updated values, so
   this isn't needed.
  reuses bi_phys_segments to count how many iovecs have been
   completely.  As the completion happens sequentiually, we
   can store this information outside the bio too.

Signed-off-by: Neil Brown <neilb@suse.de>

diff .prev/drivers/block/umem.c ./drivers/block/umem.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:56 +02:00
NeilBrown 5705f70217 Introduce rq_for_each_segment replacing rq_for_each_bio
Every usage of rq_for_each_bio wraps a usage of
bio_for_each_segment, so these can be combined into
rq_for_each_segment.

We define "struct req_iterator" to hold the 'bio' and 'index' that
are needed for the double iteration.

Signed-off-by: Neil Brown <neilb@suse.de>

Various compile fixes by me...

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10 09:25:56 +02:00
Andrew Morton 3558c9b323 Fix "Fix DAC960 driver on machines which don't support 64-bit DMA"
sparc32:

drivers/block/DAC960.c: In function 'DAC960_V1_EnableMemoryMailboxInterface':
drivers/block/DAC960.c:1168: error: 'DMA_32BIT_MASK' undeclared (first use in this function)
drivers/block/DAC960.c:1168: error: (Each undeclared identifier is reported only

Cc: <dac@conglom-o.org>
Cc: <stable@kernel.org>
Cc: Alessandro Polverini <alex@nibbles.it>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-19 11:24:16 -07:00
Matthew Wilcox 868047fcbb Fix DAC960 driver on machines which don't support 64-bit DMA
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=8942

Use PCI_DMA_* constants instead of own private definitions Fall back to
32-bit DMA mask if a 64-bit one fails

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Acked-by: Jeff Garzik <jeff@garzik.org>
Tested-by: Lars <polynomial-c@gmx.de>
Cc: Alessandro Polverini <alex@nibbles.it>
Cc: <dac@conglom-o.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11 17:21:19 -07:00
David S. Miller 1bd4b28039 [SUNVDC]: Use slice 0xff on VD_DISK_TYPE_DISK.
While debugging issues with the VDS server I made the
driver use partition 2 to get at the whole disk since
this is the "whole disk" partition in the Sun disk
label.

We really should use slice 0xff which really means
the whole physical disk in the VIO disk protocol.
Otherwise things won't work well on a disk image
that doesn't have a proper disk label on it.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-26 18:49:07 -07:00
Geert Uytterhoeven 928923c76b Introduce CONFIG_CHECK_SIGNATURE
Introduce CONFIG_CHECK_SIGNATURE to control inclusion of check_signature()
and avoid problems on platforms that don't have readb().

Let the few legacy (ISA || PCI || X86) drivers that need check_signature()
select CONFIG_CHECK_SIGNATURE.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-22 19:52:45 -07:00
Jan Engelhardt 06bfb7eb15 Add some help texts to recently-introduced kconfig items
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (edited MACINTOSH_DRIVERS per Geert Uytterhoeven's remark)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-18 09:52:50 -07:00
Rusty Russell 9ef7ad2296 Enable partitions for lguest block device
The lguest block device only requests one minor, which means
partitions don't work (eg "root=/dev/lgba1").

Let's follow the crowd and ask for 16.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-18 09:45:51 -07:00
Christoph Hellwig a6b3a93e15 sysace: HDIO_GETGEO has it's own method for ages
The way this driver tries to implement HDIO_GETGEO it'll never be called.
Then again on ppc it probably will never be called anyway because it's
utterly pointless.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-08-11 22:34:48 +02:00
Mariusz Kozlowski 2e4934aa45 drivers/block/cpqarray.c: better error handling and kmalloc + memset conversion to k[cz]alloc
This patch removes some redundant casts, does the kmalloc + memset to
k[cz]alloc conversion and it changes the error path to use goto (to avoid code
duplication).

 drivers/block/cpqarray.c | 49567 -> 48623 (-944 bytes)
 drivers/block/cpqarray.o | 178820 -> 178288 (-532 bytes)

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-08-11 22:34:48 +02:00
Mariusz Kozlowski 1aebe18787 drivers/block/cciss.c: kmalloc + memset conversion to kzalloc
drivers/block/cciss.c | 104285 -> 104168 (-117 bytes)
 drivers/block/cciss.o | 277400 -> 277124 (-276 bytes)

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-08-11 22:34:48 +02:00
Jesper Juhl 9b99628f8e Clean up duplicate includes in drivers/block/
This patch cleans up duplicate includes in
	drivers/block/

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Satyam Sharma <satyam.sharma@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-08-11 22:34:48 +02:00
Jesper Juhl f2912a1223 cciss: fix memory leak
There's a memory leak in the cciss driver.

in alloc_cciss_hba() we may leak sizeof(ctlr_info_t) bytes if a
call to alloc_disk(1 << NWD_SHIFT) fails.
This patch should fix the issue.

Spotted by the Coverity checker.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:43 -07:00
Rusty Russell 05ff09706b Make lguest compile with CONFIG_BLOCK=n and CONFIG_NET=n
Gabriel C reports lguest doesn't compile with CONFIG_BLOCK=n.  Fix this
by introducing a config var for the block device, which depends on
LGUEST && BLOCK.  Do the same for the net driver, rather then depending
gratuitously on CONFIG_NET.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Gabriel C <nix.or.die@googlemail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-29 17:37:45 -07:00
Rusty Russell e2c9784325 lguest: documentation III: Drivers
Documentation: The Drivers

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-26 11:35:17 -07:00
Jens Axboe 165125e1e4 [BLOCK] Get rid of request_queue_t typedef
Some of the code has been gradually transitioned to using the proper
struct request_queue, but there's lots left. So do a full sweet of
the kernel and get rid of this typedef and replace its uses with
the proper type.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-24 09:28:11 +02:00
Geert Uytterhoeven c6131fa528 ps3: Disk Storage Driver
Add a Disk Storage Driver for the PS3:
  - Implemented as a block device driver with a dynamic major
  - Disk names (and partitions) are of the format ps3d%c(%u)
  - Uses software scatter-gather with a 64 KiB bounce buffer as the hypervisor
    doesn't support scatter-gather

Cc: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 17:49:16 -07:00
David S. Miller 91ba3c2128 [SPARC64]: Fix handling of multiple vdc-port nodes.
The "id" property in vdc-port nodes are not unique, they
are all zero.  Therefore assign ID's using the parent's
"cfg-handle" property which will be unique.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-19 21:27:18 -07:00
Fabio Massimo Di Nitto da68e0814a [SPARC64]: Fix MODULE_DEVICE_TABLE() specification in VDC and VNET.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-19 21:26:57 -07:00
Paul Mundt 20c2df83d2 mm: Remove slab destructors from kmem_cache_create().
Slab destructors were no longer supported after Christoph's
c59def9f22 change. They've been
BUGs for both slab and slub, and slob never supported them
either.

This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-20 10:11:58 +09:00
Rusty Russell b754416bfe lguest: the block driver
Lguest block driver

A simple block driver for lguest.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:53 -07:00
Yoann Padioleau dd00cc486a some kmalloc/memset ->kzalloc (tree wide)
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

Here is a short excerpt of the semantic patch performing
this transformation:

@@
type T2;
expression x;
identifier f,fld;
expression E;
expression E1,E2;
expression e1,e2,e3,y;
statement S;
@@

 x =
- kmalloc
+ kzalloc
  (E1,E2)
  ...  when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
- memset((T2)x,0,E1);

@@
expression E1,E2,E3;
@@

- kzalloc(E1 * E2,E3)
+ kcalloc(E1,E2,E3)

[akpm@linux-foundation.org: get kcalloc args the right way around]
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Dave Airlie <airlied@linux.ie>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Acked-by: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Greg KH <greg@kroah.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:50 -07:00
Linus Torvalds 31bdc5dc76 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Set vio->desc_buf to NULL after freeing.
  [SPARC]: Mark sparc and sparc64 as not having virt_to_bus
  [SPARC64]: Fix reset handling in VNET driver.
  [SPARC64]: Handle reset events in vio_link_state_change().
  [SPARC64]: Handle LDC resets properly in domain-services driver.
  [SPARC64]: Massively simplify VIO device layer and support hot add/remove.
  [SPARC64]: Simplify VNET probing.
  [SPARC64]: Simplify VDC device probing.
  [SPARC64]: Add basic infrastructure for MD add/remove notification.
2007-07-18 10:23:37 -07:00
Jeremy Fitzhardinge 9f27ee5950 xen: add virtual block device driver.
The block device frontend driver allows the kernel to access block
devices exported exported by a virtual machine containing a physical
block device driver.

Signed-off-by: Ian Pratt <ian.pratt@xensource.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <axboe@kernel.dk>
2007-07-18 08:47:45 -07:00
David S. Miller 80dc35dfb9 [SPARC64]: Simplify VDC device probing.
We just need to match on the vdc-port nodes, the parent
is really not interesting at all.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-18 01:19:55 -07:00
Akinobu Mita c6d4d63489 unregister_blkdev(): delete redundant message
No need to warn unregister_blkdev() failure by caller.  (The previous patch
makes unregister_blkdev() print error message in error case)

Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:03 -07:00
Akinobu Mita 00d59405cf unregister_blkdev() delete redundant messages in callers
No need to warn unregister_blkdev() failure by the callers.  (The previous
patch makes unregister_blkdev() print error message in error case)

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:03 -07:00
Grant Likely 74489a91dd Add support for Xilinx SystemACE CompactFlash interface
Tested on Xilinx Virtex ppc405, Katmai 440SPe, and Microblaze

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Stefan Roese <sr@denx.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: John William <jwilliams@itee.uq.edu.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:02 -07:00
Rafael J. Wysocki 8314418629 Freezer: make kernel threads nonfreezable by default
Currently, the freezer treats all tasks as freezable, except for the kernel
threads that explicitly set the PF_NOFREEZE flag for themselves.  This
approach is problematic, since it requires every kernel thread to either
set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't
care for the freezing of tasks at all.

It seems better to only require the kernel threads that want to or need to
be frozen to use some freezer-related code and to remove any
freezer-related code from the other (nonfreezable) kernel threads, which is
done in this patch.

The patch causes all kernel threads to be nonfreezable by default (ie.  to
have PF_NOFREEZE set by default) and introduces the set_freezable()
function that should be called by the freezable kernel threads in order to
unset PF_NOFREEZE.  It also makes all of the currently freezable kernel
threads call set_freezable(), so it shouldn't cause any (intentional)
change of behaviour to appear.  Additionally, it updates documentation to
describe the freezing of tasks more accurately.

[akpm@linux-foundation.org: build fixes]
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Nigel Cunningham <nigel@nigel.suspend2.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:02 -07:00
Linus Torvalds 489de30259 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (209 commits)
  [POWERPC] Create add_rtc() function to enable the RTC CMOS driver
  [POWERPC] Add H_ILLAN_ATTRIBUTES hcall number
  [POWERPC] xilinxfb: Parameterize xilinxfb platform device registration
  [POWERPC] Oprofile support for Power 5++
  [POWERPC] Enable arbitary speed tty ioctls and split input/output speed
  [POWERPC] Make drivers/char/hvc_console.c:khvcd() static
  [POWERPC] Remove dead code for preventing pread() and pwrite() calls
  [POWERPC] Remove unnecessary #undef printk from prom.c
  [POWERPC] Fix typo in Ebony default DTS
  [POWERPC] Check for NULL ppc_md.init_IRQ() before calling
  [POWERPC] Remove extra return statement
  [POWERPC] pasemi: Don't auto-select CONFIG_EMBEDDED
  [POWERPC] pasemi: Rename platform
  [POWERPC] arch/powerpc/kernel/sysfs.c: Move NUMA exports
  [POWERPC] Add __read_mostly support for powerpc
  [POWERPC] Modify sched_clock() to make CONFIG_PRINTK_TIME more sane
  [POWERPC] Create a dummy zImage if no valid platform has been selected
  [POWERPC] PS3: Bootwrapper support.
  [POWERPC] powermac i2c: Use mutex
  [POWERPC] Schedule removal of arch/ppc
  ...

Fixed up conflicts manually in:

	Documentation/feature-removal-schedule.txt
	arch/powerpc/kernel/pci_32.c
	arch/powerpc/kernel/pci_64.c
	include/asm-powerpc/pci.h

and asked the powerpc people to double-check the result..
2007-07-16 17:58:08 -07:00
S.Çağlar Onur 9793c32667 Fix too few arguments to function `scsi_cmd_ioctl'
This corrects the following compile error introduced by the merge of the
new bsg layer in commit e245befce7af0a1e1347079ed62695b059594bd4:

  caglar@zangetsu linux-2.6 $ make
    CHK     include/linux/version.h
    CHK     include/linux/utsrelease.h
    CALL    scripts/checksyscalls.sh
    CHK     include/linux/compile.h
    LD      drivers/block/built-in.o
    CC [M]  drivers/block/cciss.o
  drivers/block/cciss.c: In function `cciss_ioctl':
  drivers/block/cciss.c:1173: warning: passing arg 2 of `scsi_cmd_ioctl' from incompatible pointer type
  drivers/block/cciss.c:1173: warning: passing arg 3 of `scsi_cmd_ioctl' makes pointer from integer without a cast
  drivers/block/cciss.c:1173: warning: passing arg 4 of `scsi_cmd_ioctl' makes integer from pointer without a cast
  drivers/block/cciss.c:1173: error: too few arguments to function `scsi_cmd_ioctl'
  ...
  make[2]: *** [drivers/block/cciss.o] Hata 1
  make[1]: *** [drivers/block] Hata 2
  make: *** [drivers] Hata 2

Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 12:11:27 -07:00
Linus Torvalds e245befce7 Merge branch 'bsg' of git://git.kernel.dk/data/git/linux-2.6-block
* 'bsg' of git://git.kernel.dk/data/git/linux-2.6-block: (25 commits)
  bsg: Kconfig updates
  bsg: add SCSI transport-level request support
  bsg: add bidi support
  add a struct request pointer to the request structure
  bsg: fix the deadlock on discarding done commands
  bsg: fix a blocking read bug
  bsg: minor bug fixes
  improve bsg device allocation
  bind bsg to all SCSI devices
  bsg: bind bsg to request_queue instead of gendisk
  bsg: add a request_queue argument to scsi_cmd_ioctl()
  bsg: simplify __bsg_alloc_command failpath
  bsg: add cheasy error checks for sysfs stuff
  Add queue resizing support
  Replace s32, u32 and u64 with __s32, __u32 and __u64 in bsg.h for userspace
  bsg: silence a bogus gcc warning
  bsg: style cleanup
  bsg: use u32 etc instead of uint32_t
  bsg: add SG_IO to SG v4
  bsg: replace SG v3 with SG v4
  ...
2007-07-16 10:50:19 -07:00
Linus Torvalds 14dc524972 Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block:
  splice: direct splicing updates ppos twice
  more ACSI removal
  umem: Fix match of pci_ids in umem driver
  umem: Remove references to dead CONFIG_MM_MAP_MEMORY variable
  remove the documentation for the legacy CDROM drivers
2007-07-16 10:48:20 -07:00
Linus Torvalds 02b2318e07 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: (26 commits)
  [SPARC64]: Fix UP build.
  [SPARC64]: dr-cpu unconfigure support.
  [SERIAL]: Fix console write locking in sparc drivers.
  [SPARC64]: Give more accurate errors in dr_cpu_configure().
  [SPARC64]: Clear cpu_{core,sibling}_map[] in smp_fill_in_sib_core_maps()
  [SPARC64]: Fix leak when DR added cpu does not bootup.
  [SPARC64]: Add ->set_affinity IRQ handlers.
  [SPARC64]: Process dr-cpu events in a kthread instead of workqueue.
  [SPARC64]: More sensible udelay implementation.
  [SPARC64]: SMP build fixes.
  [SPARC64]: mdesc.c needs linux/mm.h
  [SPARC64]: Fix build regressions added by dr-cpu changes.
  [SPARC64]: Unconditionally register vio_bus_type.
  [SPARC64]: Initial LDOM cpu hotplug support.
  [SPARC64]: Fix setting of variables in LDOM guest.
  [SPARC64]: Fix MD property lifetime bugs.
  [SPARC64]: Abstract out mdesc accesses for better MD update handling.
  [SPARC64]: Use more mearningful names for IRQ registry.
  [SPARC64]: Initial domain-services driver.
  [SPARC64]: Export powerd facilities for external entities.
  ...
2007-07-16 10:45:23 -07:00
Oleg Nesterov be0ef957c9 nbd.c: sock_xmit: cleanup signal related code
sock_xmit() re-implements sigprocmask() and dequeue_signal_lock().

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:50 -07:00
Oleg Nesterov 3e1ac130d0 kcdrwd: remove unneeded flush_signals() call
kcdrwd() is a kernel thread, all signals are ignored.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:50 -07:00
Stephen Rothwell f057eac0d7 Introduce CONFIG_VIRT_TO_BUS
Make some offending drivers depend on it and set CONFIG_ARCH_NO_VIRT_TO_BUS
for ppc64 so that we don't build those drivers.

This gets PowerPC allmodconfig and allyesconfig much closer to building.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Al Viro <viro@ftp.linux.org.uk>
Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:42 -07:00
Richard Knutsson 21eb92025e drivers/block/z2ram: Remove TRUE/FALSE defines
Remove defines of TRUE and FALSE
  * not used in the file
  * the file is not included somewhere else

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:42 -07:00
Adrian Bunk 56a68a500f more ACSI removal
This patch removes some code that became dead code after the ATARI_ACSI
removal.

It also indirectly fixes the following bug introduced by
commit c2bcf3b8978c291e1b7f6499475c8403a259d4d6:

 config ATARI_SLM
        tristate "Atari SLM laser printer support"
-       depends on ATARI && ATARI_ACSI!=n
+       depends on ATARI

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 15:02:47 +02:00
Neil Brown 5874c18b10 umem: Fix match of pci_ids in umem driver
the pci device list for umem was not using PCI_DEVICE, so the
subvendor/subdevice fields were not set to ANY, so matching
didn't work properly.

Change to use PCI_DEVICE.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 14:39:07 +02:00
Robert P. J. Day 51ea208c37 umem: Remove references to dead CONFIG_MM_MAP_MEMORY variable
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 14:39:06 +02:00
David S. Miller 43fdf27470 [SPARC64]: Abstract out mdesc accesses for better MD update handling.
Since we have to be able to handle MD updates, having an in-tree
set of data structures representing the MD objects actually makes
things more painful.

The MD itself is easy to parse, and we can implement the existing
interfaces using direct parsing of the MD binary image.

The MD is now reference counted, so accesses have to now take the
form:

	handle = mdesc_grab();

	... operations on MD ...

	mdesc_release(handle);

The only remaining issue are cases where code holds on to references
to MD property values.  mdesc_get_property() returns a direct pointer
to the property value, most cases just pull in the information they
need and discard the pointer, but there are few that use the pointer
directly over a long lifetime.  Those will be fixed up in a subsequent
changeset.

A preliminary handler for MD update events from domain services is
there, it is rudimentry but it works and handles all of the reference
counting.  It does not check the generation number of the MDs,
and it does not generate a "add/delete" list for notification to
interesting parties about MD changes but that will be forthcoming.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-16 04:04:28 -07:00
David S. Miller 667ef3c396 [SPARC64]: Add Sun LDOM virtual disk driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-16 04:03:56 -07:00
FUJITA Tomonori 45e79a3acd bsg: add a request_queue argument to scsi_cmd_ioctl()
bsg uses scsi_cmd_ioctl() for some SCSI/sg ioctl
commands. scsi_cmd_ioctl() gets a request queue from a gendisk
arguement. This prevents bsg being bound to SCSI devices that don't
have a gendisk (like OSD). This adds a request_queue argument to
scsi_cmd_ioctl(). The SCSI/sg ioctl commands doesn't use a gendisk so
it's safe for any SCSI devices to use scsi_cmd_ioctl().

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:45 +02:00
Linus Torvalds bc06cffdec Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (166 commits)
  [SCSI] ibmvscsi: convert to use the data buffer accessors
  [SCSI] dc395x: convert to use the data buffer accessors
  [SCSI] ncr53c8xx: convert to use the data buffer accessors
  [SCSI] sym53c8xx: convert to use the data buffer accessors
  [SCSI] ppa: coding police and printk levels
  [SCSI] aic7xxx_old: remove redundant GFP_ATOMIC from kmalloc
  [SCSI] i2o: remove redundant GFP_ATOMIC from kmalloc from device.c
  [SCSI] remove the dead CYBERSTORMIII_SCSI option
  [SCSI] don't build scsi_dma_{map,unmap} for !HAS_DMA
  [SCSI] Clean up scsi_add_lun a bit
  [SCSI] 53c700: Remove printk, which triggers because of low scsi clock on SNI RMs
  [SCSI] sni_53c710: Cleanup
  [SCSI] qla4xxx: Fix underrun/overrun conditions
  [SCSI] megaraid_mbox: use mutex instead of semaphore
  [SCSI] aacraid: add 51245, 51645 and 52245 adapters to documentation.
  [SCSI] qla2xxx: update version to 8.02.00-k1.
  [SCSI] qla2xxx: add support for NPIV
  [SCSI] stex: use resid for xfer len information
  [SCSI] Add Brownie 1200U3P to blacklist
  [SCSI] scsi.c: convert to use the data buffer accessors
  ...
2007-07-15 16:51:54 -07:00
Matthias Kaehlcke a69228deef USB: drivers/block/ub.c: use list_for_each_entry()
Low performance USB storage driver: Use list_for_each_entry() instead
of list_for_each()

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-12 16:34:40 -07:00
Tejun Heo 7b595756ec sysfs: kill unnecessary attribute->owner
sysfs is now completely out of driver/module lifetime game.  After
deletion, a sysfs node doesn't access anything outside sysfs proper,
so there's no reason to hold onto the attribute owners.  Note that
often the wrong modules were accounted for as owners leading to
accessing removed modules.

This patch kills now unnecessary attribute->owner.  Note that with
this change, userland holding a sysfs node does not prevent the
backing module from being unloaded.

For more info regarding lifetime rule cleanup, please read the
following message.

  http://article.gmane.org/gmane.linux.kernel/510293

(tweaked by Greg to not delete the field just yet, to make it easier to
merge things properly.)

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:09:06 -07:00
Paul Mackerras bf22f6fe2d Merge branch 'for-2.6.23' into merge 2007-07-11 13:28:26 +10:00
Linus Torvalds 01370f0603 Merge branch 'splice-2.6.23' of git://git.kernel.dk/data/git/linux-2.6-block
* 'splice-2.6.23' of git://git.kernel.dk/data/git/linux-2.6-block:
  pipe: add documentation and comments
  pipe: change the ->pin() operation to ->confirm()
  Remove remnants of sendfile()
  xip sendfile removal
  splice: completely document external interface with kerneldoc
  sendfile: remove bad_sendfile() from bad_file_ops
  shmem: convert to using splice instead of sendfile()
  relay: use splice_to_pipe() instead of open-coding the pipe loop
  pipe: allow passing around of ops private pointer
  splice: divorce the splice structure/function definitions from the pipe header
  splice: relay support
  sendfile: convert nfsd to splice_direct_to_actor()
  sendfile: convert nfs to using splice_read()
  loop: convert to using splice_direct_to_actor() instead of sendfile()
  splice: add void cookie to the actor data
  sendfile: kill generic_file_sendfile()
  sendfile: remove .sendfile from filesystems that use generic_file_sendfile()
  sys_sendfile: switch to using ->splice_read, if available
  vmsplice: add vmsplice-to-user support
  splice: abstract out actor data
2007-07-10 13:51:06 -07:00
Jan Engelhardt fd11d171e5 Make a "menuconfig" out of the Kconfig objects "menu, ..., endmenu",
so that the user can disable all the options in that menu at once
instead of having to disable each option separately.

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10 13:43:30 +02:00
Stephen Rothwell 36a700307e [POWERPC] Fix viodasd geometry calculations
Commit a885c8c431 that introduced the
getgeo block device method changed the fallback number of sectors and
introduced a bug into the fallback cylinder number calculation.

Thanks to Rusty Russell for noticing this.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10 21:40:28 +10:00
Jens Axboe cac36bb06e pipe: change the ->pin() operation to ->confirm()
The name 'pin' was badly chosen, it doesn't pin a pipe buffer
in the most commonly used sense in the kernel. So change the
name to 'confirm', after debating this issue with Hugh
Dickins a bit.

A good return from ->confirm() means that the buffer is really
there, and that the contents are good.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10 08:04:15 +02:00
Jens Axboe d6b29d7cee splice: divorce the splice structure/function definitions from the pipe header
We need to move even more stuff into the header so that folks can use
the splice_to_pipe() implementation instead of open-coding a lot of
pipe knowledge (see relay implementation), so move to our own header
file finally.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10 08:04:14 +02:00
Jens Axboe fd5821404e loop: convert to using splice_direct_to_actor() instead of sendfile()
This gets rid of the dependency on ->sendfile() for receiving data
and converts loop to ->splice_read() instead.

Also includes an IV offset fix from Hugh Dickins.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10 08:04:14 +02:00
Boaz Harrosh e654bc4393 [PATCH] fix request->cmd == INT cases
- I have unearthed very old bugs in stale drivers that still
   used request->cmd as a READ|WRITE int
 - This patch is maybe a proof that these drivers have not been
   used for a long time. Should they be removed completely?

Drivers that currently do not work for sure:
 drivers/acorn/block/fd1772.c |    2 +-
 drivers/acorn/block/mfmhd.c  |    8 ++++----
 drivers/cdrom/aztcd.c        |    2 +-
 drivers/cdrom/cm206.c        |    2 +-
 drivers/cdrom/gscd.c         |    2 +-
 drivers/cdrom/mcdx.c         |    2 +-
 drivers/cdrom/optcd.c        |    2 +-
 drivers/cdrom/sjcd.c         |    2 +-

Drivers with cosmetic fixes only:
  b/drivers/block/amiflop.c
  b/drivers/block/nbd.c
  b/drivers/ide/legacy/hd.c

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10 08:03:34 +02:00
Mike Miller (OS Dev 9cff3b383d cciss: add new controller support for P700m
This patch adds support for the Smart Array P700m SAS controller. This new
controller will ship Fall 2007.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10 08:03:33 +02:00
Jens Axboe c2bcf3b897 [PATCH] Remove acsi.c
Originally from Boaz Harrosh <bharrosh@panasas.com>

It hasn't been working in 2.5 or 2.6 ever, since it's still buffer_head
based.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10 08:03:33 +02:00
Ken Chen a47653fc26 loop: preallocate eight loop devices
The kernel on-demand loop device instantiation breaks several user space
tools as the tools are not ready to cope with the "on-demand feature".  Fix
it by instantiate default 8 loop devices and also reinstate max_loop module
parameter.

Signed-off-by: Ken Chen <kenchen@google.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-08 17:23:32 -07:00
James Bottomley 5bc65793cb [SCSI] Merge up to linux-2.6 head
Conflicts:

	drivers/scsi/jazz_esp.c

Same changes made by both SCSI and SPARC trees: problem with UTF-8
conversion in the copyright.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-30 23:57:05 -05:00
FUJITA Tomonori 41ce639a1c [SCSI] cciss: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Mike Miller <Mike.Miller@hp.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-29 11:22:13 -05:00
Eric Sesterhenn / Snakebyte 4acb3e2f97 Off by one in floppy.c
Another coverity patch i forgot to resend, original thread here
http://marc.info/?l=linux-kernel&m=115144559823592&w=2

In case drive == N_DRIVE, we get one past the drive_params array.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-23 20:14:15 -07:00
Gerald Britton e9ca75b535 cciss: Fix pci_driver.shutdown while device is still active
Fix an Oops in the cciss driver caused by system shutdown while a filesystem
on a cciss device is still active.  The cciss_remove_one function only
properly removes the device if the device has been cleanly released by its
users, which is not the case when the pci_driver.shutdown method is called.

This patch adds a new cciss_shutdown function to better match the pattern
used by various SCSI drivers: deactivate device interrupts and flush caches.
It also alters the cciss_remove_one function to match and readds the
__devexit annotation that was removed when cciss_remove_one was serving as
the pci_driver.shutdown method.

Signed-off-by: Gerald Britton <gbritton@alum.mit.edu>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-18 21:03:49 -07:00
Al Viro 705962ccc9 fix deadlock in loop.c
... doh

Jeremy Fitzhardinge noted that the recent loop.c cleanups worked, but
cause lockdep to complain.

Ouch.  OK, the deadlock is real and yes, I'm an idiot.  Speaking of which,
we probably want to s/lock/pin/ in drivers/base/map.c to avoid such
brainos again.  And yes, this stuff needs clear documentation.  Will try
to put one together once I get some sleep...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-13 09:44:05 -07:00
Al Viro 07002e9956 fix the dynamic allocation and probe in loop.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Ken Chen <kenchen@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-12 16:53:02 -07:00
Martin Schwidefsky 61d48c2c31 [S390] Kconfig: use common Kconfig files for s390.
Disband drivers/s390/Kconfig, use the common Kconfig files. The s390
specific config options from drivers/s390/Kconfig are moved to the
respective common Kconfig files.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-10 15:46:08 +02:00
Linus Torvalds 9a9136e270 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (25 commits)
  sound: convert "sound" subdirectory to UTF-8
  MAINTAINERS: Add cxacru website/mailing list
  include files: convert "include" subdirectory to UTF-8
  general: convert "kernel" subdirectory to UTF-8
  documentation: convert the Documentation directory to UTF-8
  Convert the toplevel files CREDITS and MAINTAINERS to UTF-8.
  remove broken URLs from net drivers' output
  Magic number prefix consistency change to Documentation/magic-number.txt
  trivial: s/i_sem /i_mutex/
  fix file specification in comments
  drivers/base/platform.c: fix small typo in doc
  misc doc and kconfig typos
  Remove obsolete fat_cvf help text
  Fix occurrences of "the the "
  Fix minor typoes in kernel/module.c
  Kconfig: Remove reference to external mqueue library
  Kconfig: A couple of grammatical fixes in arch/i386/Kconfig
  Correct comments in genrtc.c to refer to correct /proc file.
  Fix more "deprecated" spellos.
  Fix "deprecated" typoes.
  ...

Fix trivial comment conflict in kernel/relay.c.
2007-05-09 12:54:17 -07:00
Nate Diller 01f2705daf fs: convert core functions to zero_user_page
It's very common for file systems to need to zero part or all of a page,
the simplist way is just to use kmap_atomic() and memset().  There's
actually a library function in include/linux/highmem.h that does exactly
that, but it's confusingly named memclear_highpage_flush(), which is
descriptive of *how* it does the work rather than what the *purpose* is.
So this patchset renames the function to zero_user_page(), and calls it
from the various places that currently open code it.

This first patch introduces the new function call, and converts all the
core kernel callsites, both the open-coded ones and the old
memclear_highpage_flush() ones.  Following this patch is a series of
conversions for each file system individually, per AKPM, and finally a
patch deprecating the old call.  The diffstat below shows the entire
patchset.

[akpm@linux-foundation.org: fix a few things]
Signed-off-by: Nate Diller <nate.diller@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09 12:30:55 -07:00
WANG Cong 84963048ca nbd: check the return value of sysfs_create_file
[akpm@linux-foundation.org: fix it]
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09 12:30:49 -07:00
Michael Opdenacker 59c51591a0 Fix occurrences of "the the "
Signed-off-by: Michael Opdenacker <michael@free-electrons.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-09 08:57:56 +02:00
Stephen Cameron d5d3b736e3 cciss: include scsi/scsi.h unconditionally
Make cciss unconditionally include scsi/scsi.h, because of the use of
SCSI_IOCTL_GET_IDLUN and SCSI_IOCTL_GET_BUS_NUMBER.

Signed-off-by: Stephen M. Cameron <steve.cameron@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:10 -07:00
Mike Miller (OS Dev) 198b766013 cciss: set rq->errors more correctly in driver
Set rq->errors more correctly in cciss driver.  Previously we had set it
synonymously with the meaning of the last parameter of end_that_last_request
and complete_buffers (the "uptodate" parameter) and had gotten away with it
for all this time because nobody ever looked at rq->errors.
SCSI_IOCTL_SEND_COMMAND looks at rq->errors, so now it matters that it be
right.

Signed-off-by: Stephen M. Cameron <steve.cameron@hp.com>
Signed-off-by: Mike Miller <mike.miller@hp.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:09 -07:00
Mike Miller (OS Dev) 03bbfee58d cciss: add SG_IO ioctl to cciss
For all of you that think cciss should be a scsi driver here is the patch that
you have been waiting for all these years. This patch actually adds the SG_IO
ioctl to cciss. The primary purpose is for clustering and high-availibilty.
But now anyone can exploit this ioctl in any manner they wish.

Note, SCSI_IOCTL_SEND_COMMAND doesn't work with this patch due to rq->errors
being set incorrectly.  Subsequent patch fixes that.

Signed-off-by: Stephen M. Cameron <steve.cameron@hp.com>
Signed-off-by: Mike Miller <mike.miller@hp.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:09 -07:00
Mike Miller (OS Dev) d38ae168bf cciss: reformat error handling
Reformat some error handling code to reduce line lengths a bit.

Signed-off-by: Stephen M. Cameron <steve.cameron@hp.com>
Signed-off-by: Mike Miller <mike.miller@hp.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:09 -07:00
Ken Chen 7328508274 remove artificial software max_loop limit
Remove artificial maximum 256 loop device that can be created due to a
legacy device number limit.  Searching through lkml archive, there are
several instances where users complained about the artificial limit that
the loop driver impose.  There is no reason to have such limit.

This patch rid the limit entirely and make loop device and associated block
queue instantiation on demand.  With on-demand instantiation, it also gives
the benefit of not wasting memory if these devices are not in use (compare
to current implementation that always create 8 loop devices), a net
improvement in both areas.  This version is both tested with creation of
large number of loop devices and is compatible with existing losetup/mount
user land tools.

There are a number of people who worked on this and provided valuable
suggestions, in no particular order, by:

Jens Axboe
Jan Engelhardt
Christoph Hellwig
Thomas M

Signed-off-by: Ken Chen <kenchen@google.com>
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:07 -07:00
Randy Dunlap e63340ae6b header cleaning: don't include smp_lock.h when not used
Remove includes of <linux/smp_lock.h> where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:07 -07:00
Dmitriy Monakhov 4ea1b0f4c4 floppy: handle device_create_file() failure while init
This patch kills the "ignoring return value of 'device_create_file'"
warning message.

Signed-off-by: Monakhov Dmitriy <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:02 -07:00
Peter Zijlstra f98393a64c mm: remove destroy_dirty_buffers from invalidate_bdev()
Remove the destroy_dirty_buffers argument from invalidate_bdev(), it hasn't
been used in 6 years (so akpm says).

find * -name \*.[ch] | xargs grep -l invalidate_bdev |
while read file; do
	quilt add $file;
	sed -ie 's/invalidate_bdev(\([^,]*\),[^)]*)/invalidate_bdev(\1)/g' $file;
done

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:55 -07:00
Pavel Emelianov 7562f876cd [NET]: Rework dev_base via list_head (v3)
Cleanup of dev_base list use, with the aim to simplify making device
list per-namespace. In almost every occasion, use of dev_base variable
and dev->next pointer could be easily replaced by for_each_netdev
loop. A few most complicated places were converted to using
first_netdev()/next_netdev().

Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Acked-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-03 15:13:45 -07:00
Pete Zaitcev 643616e678 ub: Bind to first endpoint, not to last
The usb-storage switched to binding to first endpoint recently. Apparently,
there are devices out there with extra endpoints. It is perfectly legal.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:34 -07:00
Arnaldo Carvalho de Melo c1d2bbe1cd [SK_BUFF]: Introduce skb_reset_network_header(skb)
For the common, open coded 'skb->nh.raw = skb->data' operation, so that we can
later turn skb->nh.raw into a offset, reducing the size of struct sk_buff in
64bit land while possibly keeping it as a pointer on 32bit.

This one touches just the most simple case, next will handle the slightly more
"complex" cases.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:46 -07:00
Arnaldo Carvalho de Melo 98e399f82a [SK_BUFF]: Introduce skb_mac_header()
For the places where we need a pointer to the mac header, it is still legal to
touch skb->mac.raw directly if just adding to, subtracting from or setting it
to another layer header.

This one also converts some more cases to skb_reset_mac_header() that my
regex missed as it had no spaces before nor after '=', ugh.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:41 -07:00
Arnaldo Carvalho de Melo 459a98ed88 [SK_BUFF]: Introduce skb_reset_mac_header(skb)
For the common, open coded 'skb->mac.raw = skb->data' operation, so that we can
later turn skb->mac.raw into a offset, reducing the size of struct sk_buff in
64bit land while possibly keeping it as a pointer on 32bit.

This one touches just the most simple case, next will handle the slightly more
"complex" cases.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:32 -07:00
Arnaldo Carvalho de Melo 029720f15d [AOE]: Introduce aoe_hdr()
For consistency with other skb->mac.raw users.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:24:28 -07:00
Andrew Morton cbc31a475a packet: fix error handling
The packet driver is assuming (reasonably) that the (undocumented)
request.errors is an errno.  But it is in fact some mysterious bitfield.  When
things go wrong we return weird positive numbers to the VFS as pointers and it
goes oops.

Thanks to William Heimbigner for reporting and diagnosis.

(It doesn't oops, but this driver still doesn't work for William)

Cc: William Heimbigner <icxcnika@mar.tar.cc>
Cc: Peter Osterlund <petero2@telia.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-25 13:50:55 -07:00
Alexey Dobriyan 671d40f4aa paride drivers: initialize spinlocks
pcd_lock and pf_spin_lock are passed to blk_init_queue() which, seeing them
as valid lock pointer, sets it as ->queue_lock.

The problem is that pcd_lock and pf_spin_lock aren't initialized anywhere.

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-24 08:23:08 -07:00
Bjorn Helgaas b6550777a3 [PATCH] cciss: unregister from SCSI before tearing down device resources
We must unregister from SCSI before we unmap device resources and unhook
the IRQ handler.  Otherwise, SCSI may send us more requests, and we won't
be able to handle them.

I see the following oops during every reboot of my HP DL360:

    ...
    Unmounting local filesystems...done.
    Rebooting... Completed flushing cache on controller 0
    BUG: unable to handle kernel paging request at virtual address f8808040
     printing eip:
    c02dc72b
    *pde = 02120067
    *pte = 00000000
    Oops: 0002 [#1]
    SMP
    Modules linked in:
    CPU:    1
    EIP:    0060:[<c02dc72b>]    Not tainted VLI
    EFLAGS: 00010046   (2.6.21-rc6 #1)
    EIP is at SA5_submit_command+0xb/0x20
    eax: f8808000   ebx: f7a00000   ecx: f79f0000   edx: 37a00000
    esi: f79f0000   edi: 00000000   ebp: 00000000   esp: dd717a44
    ds: 007b   es: 007b   fs: 00d8  gs: 0000  ss: 0068
    Process khelper (pid: 1427, ti=dd716000 task=c2260a70 task.ti=dd716000)
    Stack: c02df2c0 f7a00000 f7a00000 00d41008 c02df691 00000000 00000010 00000002
	   00000001 f79f0000 f7fff844 c1398420 00000000 00000000 00001000 230a3020
	   69666564 5420656e 50434f49 465f544b 4853554c 44414552 0a312009 66656423
    Call Trace:
     [<c02df2c0>] start_io+0x80/0x120
     [<c02df691>] do_cciss_request+0x331/0x350
     [<c014242a>] mempool_alloc+0x2a/0xe0
     [<c020ad71>] blk_alloc_request+0x61/0x80
     [<c020b02e>] get_request+0x15e/0x1e0
     [<c01595e0>] cache_alloc_refill+0xb0/0x1e0
     [<c021049d>] as_update_rq+0x2d/0x80
     [<c0210d28>] as_add_request+0x68/0x90
     [<c0207f99>] elv_insert+0x119/0x160
     [<c020bd0b>] __make_request+0xcb/0x320
     [<c0122ee0>] lock_timer_base+0x20/0x50
     [<c0123096>] del_timer+0x56/0x60
     [<c020a7b8>] blk_remove_plug+0x38/0x70
     [<c020a815>] __generic_unplug_device+0x25/0x30
     [<c020a835>] generic_unplug_device+0x15/0x30
    ...

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-12 15:31:42 -07:00
Mike Miller (OS Dev) 7f42d3b8a7 [PATCH] cciss: add init of drv->cylinders back to cciss_geometry_inquiry
This patch adds initialization of drv->cylinders back into the failing case in
cciss_geometry_inquiry. I inadvertently removed it in one my 2TB updates.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-04 21:12:47 -07:00
Al Viro 27d871833e [PATCH] paride endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14 15:27:50 -07:00
Al Viro 4c1f2b3168 [PATCH] cciss endian annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14 15:27:50 -07:00
Dimitri Gorokhovik f991633de6 [PATCH] initramfs should not depend on CONFIG_BLOCK
initramfs ended up depending on BLOCK:

  INITRAMFS_SOURCE <-- BLK_DEV_INITRD <-- BLOCK

This inhibits use of customized-initramfs-over-ramfs without block layer
(ramfs would still be enabled), useful in embedded applications.

Move BLK_DEV_INITRD out of 'drivers/block/Kconfig' and into 'init/Kconfig',
make it unconditional.

Signed-off-by: Dimitri Gorokhovik <dimitri.gorokhovik@free.fr>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-06 09:30:25 -08:00
Mike Miller (OS Dev) de69fee82c [PATCH] cciss: add struct pci_driver shutdown support (replaces reboot notifier)
This patch adds support for the struct pci_driver shutdown method to cciss.
 We require notification of an impending reboot or shutdown so that we can
flush the battery backed write cache (BBWC) on the Smart Array controller.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-06 09:30:25 -08:00
Mike Miller (OS Dev) 97c0697851 [PATCH] cciss: fix for 2TB support
This patch changes the way we determine if a logical volume is larger than
2TB.

The original test looked for a total_size of 0.  Originally we added 1 to the
total_size.  That would make our read_capacity return size 0 for >2TB lv's.
We assumed that we could not have a lv size of 0 so it seemed OK until we were
in a clustered system.  The backup node would see a size of 0 due to the
reservation on the drive.  That caused the driver to switch to 16-byte CDB's
which are not supported on older controllers.  After that everything was
broken.

It may seem petty but I don't see the value in trying to determine if the LBA
is beyond the 2TB boundary.  That's why when we switch we use 16-byte CDB's
for all read/write operations.  Please consider this for inclusion.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-06 09:30:25 -08:00
David S. Miller 43ecf5295b [AOE]: Add get_unaligned() calls where needed.
Based upon a report by Andrew Walrond.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-02 15:22:55 -08:00
NeilBrown 5a243e0e97 [PATCH] Fix failure paths in modules init in umem.c
If register_blkdev() or alloc-disk fail in mm_init() after
pci_register_driver() succeeds, then mm_pci_driver is not unregistered
properly:

Cc: Philip Guo <pg@cs.stanford.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-01 14:53:36 -08:00
Gerhard Dirschl 91e4ee381d [PATCH] pktcdvd: Correctly set cmd_len field in pkt_generic_packet
Fixes http://bugzilla.kernel.org/show_bug.cgi?id=7810 - a silly
copy-paste bug introduced by the latest change.

Signed-off-by: Gerhard Dirschl <gd@spherenet.de>
Cc: Peter Osterlund <petero2@telia.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-20 17:10:14 -08:00
Ralf Baechle 7b8f850beb [PATCH] Fix build errors if bitop functions are do {} while macros
If one of clear_bit, change_bit or set_bit is defined as a do { } while (0)
function usage of these functions in parenthesis like

  (foo_bit(23, &var))

while be expaned to something like

  (do { ... } while (0)}).

resulting in a build error.  This patch removes the useless parenthesis.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-20 17:10:12 -08:00
Tim Schmielau cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00
Arjan van de Ven 2b8693c061 [PATCH] mark struct file_operations const 3
Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:45 -08:00
Linus Torvalds 5f0b1437e0 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (97 commits)
  [SCSI] zfcp: removed wrong comment
  [SCSI] zfcp: use of uninitialized variable
  [SCSI] zfcp: Invalid locking order
  [SCSI] aic79xx: use dma_get_required_mask()
  [SCSI] aic79xx: fix bracket mismatch in unused macro
  [SCSI] BusLogic: Replace 'boolean' by 'bool'
  [SCSI] advansys: clean up warnings
  [SCSI] 53c7xx: brackets fix in uncompiled code
  [SCSI] nsp_cs: remove old scsi code
  [SCSI] aic79xx: make ahd_match_scb() static
  [SCSI] DAC960: kmalloc->kzalloc/Casting cleanups
  [SCSI] scsi_kmap_atomic_sg(): check that local irqs are disabled
  [SCSI] Buslogic: local_irq_disable() is redundant after local_irq_save()
  [SCSI] aic94xx: update for v28 firmware
  [SCSI] scsi_error: Fix lost EH commands
  [SCSI] aic94xx: Add default bus reset handler
  [SCSI] aic94xx: Remove TMF result code munging
  [SCSI] libsas: Add an LU reset mechanism to the error handler
  [SCSI] libsas: Don't BUG when connecting two expanders via wide port
  [SCSI] st: fix Tape dies if wrong block size used, bug 7919
  ...
2007-02-11 11:44:25 -08:00
Richard Knutsson 87d156bfd5 [PATCH] drivers/block/DAC960: convert 'boolean' to 'bool'
Converts 'boolean' to 'bool' and removes the 'boolean' typedef.

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Cc: Jens Axboe <axboe@suse.de>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 11:18:06 -08:00
Robert P. J. Day 482a579b37 [PATCH] Remove unused kernel config option PARIDE_PARPORT
Remove the unused kernel config option PARIDE_PARPORT.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 11:18:06 -08:00
Thomas Maier 83f3aa3dc5 [PATCH] pktcdvd: cleanup
- update documentation

- use clear_bdi_congested/set_bdi_congested functions directly instead of
  old wrappers

- removed DECLARE_BUF_AS_STRING macro

Signed-off-by: Thomas Maier <balagi@justmail.de>
Cc: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:28 -08:00
Jean-Paul Saman c33df4eaaf [PATCH] disable init/initramfs.c
The file init/initramfs.c is always compiled and linked in the kernel
vmlinux even when BLK_DEV_RAM and BLK_DEV_INITRD are disabled and the
system isn't using any form of an initramfs or initrd.  In this situation
the code is only used to unpack a (static) default initial rootfilesystem.
The current init/initramfs.c code.  usr/initramfs_data.o compiles to a size
of ~15 kbytes.  Disabling BLK_DEV_RAM and BLK_DEV_INTRD shrinks the kernel
code size with ~60 Kbytes.

This patch avoids compiling in the code and data for initramfs support if
CONFIG_BLK_DEV_INITRD is not defined.  Instead of the initramfs code and
data it uses a small routine in init/noinitramfs.c to setup an initial
static default environment for mounting a rootfilesystem later on in the
kernel initialisation process.  The new code is: 164 bytes of size.

The patch is separated in two parts:
1) doesn't compile initramfs code when CONFIG_BLK_DEV_INITRD is not set
2) changing all plaforms vmlinux.lds.S files to not reserve an area of
PAGE_SIZE when CONFIG_BLK_DEV_INITRD is not set.

[deweerdt@free.fr: warning fix]
Signed-off-by: Jean-Paul Saman <jean-paul.saman@nxp.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:25 -08:00
Ahmed S. Darwish 0a361e3186 [SCSI] DAC960: kmalloc->kzalloc/Casting cleanups
A patch to switch kmalloc->kzalloc and to clean unneeded kammloc,
pci_alloc_consistent casts

Signed-off-by: Ahmed Darwish <darwish.07@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-02-07 18:29:39 -05:00
Christoph Hellwig 406c9b605c [PATCH] Fix BUG at drivers/scsi/scsi_lib.c:1118 caused by "pktsetup dvd /dev/sr0"
Fix http://bugzilla.kernel.org/show_bug.cgi?id=7667

This is because the packet driver tries to send down read/write BLOCK_PC
commands that don't use a bio and do not use sg lists.

The right fix is to replace all the packet_command stuff in the packet
driver by scsi_execute() which needs to be lifted from scsi code to
the block code for that.

Fix the bug for now.  It's not the full way to a generic execute block pc
infrastcuture but fixes the bug for the time being.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-05 23:55:22 -08:00
Randy Dunlap 0f5486ecf7 [PATCH] cciss: build with PROC_FS=n
RAID_UNKNOWN is used even when PROC_FS=n, so move it outside of the
CONFIG_PROC_FS block.

drivers/block/cciss.c:1910: error: 'RAID_UNKNOWN' undeclared (first use in this function)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: <mike.miller@hp.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30 10:56:42 -08:00
Ed L. Cashin 19900cdee2 [PATCH] fix aoe without scatter-gather [Bug 7662]
Fix a bug that only appears when AoE goes over a network card that does not
support scatter-gather.  The headers in the linear part of the skb appeared
to be larger than they really were, resulting in data that was offset by 24
bytes.

This patch eliminates the offset data on cards that don't support
scatter-gather or have had scatter-gather turned off.  There remains an
unrelated issue that I'll address in a separate email.

Fixes bugzilla #7662

Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com>
Cc: <stable@kernel.org>
Cc: Greg KH <greg@kroah.com>
Cc: <boddingt@optusnet.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-22 08:55:49 -08:00
Linus Torvalds 4604096768 Merge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block
* 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block:
  [PATCH] block: document io scheduler allow_merge_fn hook
  [PATCH] cfq-iosched: don't allow sync merges across queues
  [PATCH] Fixup blk_rq_unmap_user() API
  [PATCH] __blk_rq_unmap_user() fails to return error
  [PATCH] __blk_rq_map_user() doesn't need to grab the queue_lock
  [PATCH] Remove queue merging hooks
  [PATCH] ->nr_sectors and ->hard_nr_sectors are not used for BLOCK_PC requests
  [PATCH] cciss: fix XFER_READ/XFER_WRITE in do_cciss_request
  [PATCH] cciss: set default raid level when reading geometry fails
2006-12-21 00:03:38 -08:00
Stephen Rothwell fb8b500784 [POWERPC] iSeries: fix viodasd init
Don't initialise viodasd except on legacy iSeries.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-20 16:37:47 +11:00
Mike Miller a52de245ef [PATCH] cciss: fix XFER_READ/XFER_WRITE in do_cciss_request
This patch fixes a stupid bug. Sometime during the 2tb enhancement I ended up
replacing the macros XFER_READ and XFER_WRITE with h->cciss_read and
h->cciss_write respectively. It seemed to work somehow at least on x86_64 and
ia64. I don't know how. But people started complaining about command timeouts
on older controllers like the 64xx series and only on ia32. This resolves the
issue reproduced in our lab. Please consider this for inclusion.

Thanks,
mikem

Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-18 11:00:14 +01:00
Mike Miller 89f97ad189 [PATCH] cciss: set default raid level when reading geometry fails
This patch sets a default raid level on a volume that either does not support
reading the geometry or reports an invalid geometry for whatever reason. We
were always setting some values for heads and sectors but never set a raid
level. This caused lots of problems on some buggy firmware. Please consider
this for inclusion.

Thanks,
mikem

Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-18 10:59:39 +01:00
Linus Torvalds 5faad62026 Merge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block
* 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block:
  [PATCH] Fixup cciss error handling
  [PATCH] Allow as-iosched to be unloaded
  [PATCH 2/2] cciss: remove calls to pci_disable_device
  [PATCH 1/2] cciss: map out more memory for config table
  [PATCH] Propagate down request sync flag

Resolve trivial whitespace conflict in drivers/block/cciss.c manually.
2006-12-13 09:15:34 -08:00
Robert P. J. Day 5cbded585d [PATCH] getting rid of all casts of k[cmz]alloc() calls
Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:58 -08:00
Adrian Bunk b21a323710 [PATCH] remove the broken BLK_DEV_SWIM_IOP driver
The BLK_DEV_SWIM_IOP driver has:
- already been marked as BROKEN in 2.6.0 three years ago and
- is still marked as BROKEN.

Drivers that had been marked as BROKEN for such a long time seem to be
unlikely to be revived in the forseeable future.

But if anyone wants to ever revive this driver, the code is still
present in the older kernel releases.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:53 -08:00
Mike Miller 872225ca77 [PATCH] cciss: remove calls to pci_disable_device
Remove calls to pci_disable_device except in fail_all_cmds.  The
pci_disable_device function does something nasty to Smart Array controllers
that pci_enable_device does not undo.  So if the driver is unloaded it
cannot be reloaded.

Also, customers can disable any pci device via the ROM Based Setup Utility
(RBSU).  If the customer has disabled the controller we should not try to
blindly enable the card from the driver.  Please consider this for
inclusion.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:49 -08:00
Mike Miller a5b92873a8 [PATCH] cciss: map out more memory for config table
Map out more memory for our config table.  It's required to reach offset
0x214 to disable DMA on the P600.  I'm not sure how I lost this hunk.
Please consider this for inclusion.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:49 -08:00
Jens Axboe 2fc2c60df3 [PATCH] Fixup cciss error handling
The previous cciss commit removed the err_out_disable_pdev label, but
there was still a user of that. Fix that up.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-13 15:44:27 +01:00
mike.miller@hp.com c4977f596c [PATCH 2/2] cciss: remove calls to pci_disable_device
This patch removes calls to pci_disable_device except in fail_all_cmds. The
pci_disable_device function does something nasty to Smart Array controllers
that pci_enable_device does not undo. So if the driver is unloaded it cannot be
reloaded.

Also, customers can disable any pci device via the ROM Based Setup Utility
(RBSU). If the customer has disabled the controller we should not try to
blindly enable the card from the driver.  Please consider this for inclusion.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-13 13:10:04 +01:00