Documentation/block/barrier.txt is not in sync with the actual code: - blk_queue_ordered() no longer has a gfp_mask parameter - blk_queue_ordered_locked() no longer exists - sd_prepare_flush() looks slightly different
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

elevator
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

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>

"menu, endmenu" that did not get cleaned up in the block patch
[ http://lkml.org/lkml/2007/4/10/251 ]
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>

instead of going through all options.
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>

With the cfq_queue hash removal, we inadvertently got rid of the
async queue sharing. This was not intentional, in fact CFQ purposely
shares the async queue per priority level to get good merging for
async writes.

So put some logic in cfq_get_queue() to track the shared queues.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

bio_{,un}map_user no longer have any modular users.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

They are all broken beyond repair. Given that nobody has complained
about them (most haven't worked in 2.6 AT ALL), remove them from the
tree.

A new mitsumi driver that actually works is in progress, it'll get
added when completed.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

 - 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>

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>

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>

Barrier bios are completed twice - once after the barrier write itself
is done and again after the whole sequence is complete.
flush_dry_bio_endio() is for the first completion.  It doesn't really
complete the bio.  It rewinds bvec and resets bio so that it can be
completed again when the whole barrier sequence is complete.

The bvec rewinding code has the following problems.

1. The rewinding code is wrong because filesystems may pass bvec with
   non zero bv_offset.

2. The block layer doesn't guarantee anything about the state of
   bvec array on request completion.  bv_offset and len are updated
   iff __end_that_request_first() completes the bvec partially.

Because of #2, #1 doesn't really matter (nobody cares whether bvec is
re-wound correctly or not) but then again by not doing unwinding at
all, we'll always give back the same bvec to the caller as full bvec
completion doesn't alter bvecs and the final completion is always full
completion.

Drop unnecessary rewinding code.

This is spotted by Neil Brown.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

Fix the cdrom_sysctl_info possible buffer overwrite bug. Also
fix the locking of accessing topCdromPtr pointer.
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

Two bugs in there:

- The virt oversize check should use the current bio hardware back
  size and the next bio front size, not the same bio. Spotted by
  Neil Brown.

- The segment size check should add hw front sizes, not total bio
  sizes. Spotted by James Bottomley
Acked-by: James Bottomley <James.Bottomley@SteelEye.com>
Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

blk_congestion_wait() doesn't exist anymore, but there's still a stub
in blkdev.h for the !CONFIG_BLOCK case.  Kill it.
Signed-off-by: Benjamin Gilbert <bgilbert@cs.cmu.edu>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (31 commits)
  firewire: fw-sbp2: fix DMA mapping of management ORBs
  firewire: fw-sbp2: fix DMA mapping of command ORBs
  firewire: fw-sbp2: fix DMA mapping of S/G tables
  firewire: fw-sbp2: add a boundary check
  firewire: fw-sbp2: correctly align page tables
  firewire: fw-sbp2: memset wants string.h
  firewire: fw-sbp2: use correct speed in sbp2_agent_reset
  firewire: fw-sbp2: correctly dereference by container_of
  firewire: Document userspace ioctl interface.
  firewire: fw-sbp2: implement nonexclusive login
  firewire: fw-sbp2: let SCSI shutdown commands through before logout
  firewire: fw-sbp2: implement max sectors limit for some old bridges
  firewire: simplify a struct type
  firewire: support S100B...S400B and link slower than PHY
  firewire: optimize gap count with 1394b leaf nodes
  firewire: remove unused macro
  firewire: missing newline in printk
  firewire: fw-sbp2: remove unused struct member
  ieee1394: remove old isochronous ABI
  ieee1394: sbp2: change some module parameters from int to bool
  ...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: handle cases of volume knobs generating relative values
  HID: Logitech keyboard 0xc311 needs reset leds quirk
  HID: support for logitech cordless desktop LX500 special mapping
  HID: fix autocentering of PID devices
  HID: separate quirks for report descriptor fixup
  HID: Add NOGET quirk for all NCR devices
  HID: support for Petalynx Maxter remote control
  HID: fix mismatch between hid-input HUT find/search mapping and the HUT
  HID: support for Gameron dual psx adaptor
  USB HID: avoid flush_scheduled_work()
  HID: Use menuconfig objects
  HID: force hid-input for Microsoft SideWinder GameVoice device
  HID: input mapping for Chicony KU-0418 tactical pad
  HID: make debugging output runtime-configurable

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (75 commits)
  Ethernet driver for EISA only SNI RM200/RM400 machines
  Extract chip specific code out of lasi_82596.c
  ehea: Whitespace cleanup
  pasemi_mac: Fix TX interrupt threshold
  spidernet: Replace literal with const
  r8169: perform RX config change after mac filtering
  r8169: mac address change support
  r8169: display some extra debug information during startup
  r8169: add endianess annotations to [RT]xDesc
  r8169: align the IP header when there is no DMA constraint
  r8169: add bit description for the TxPoll register
  r8169: cleanup
  r8169: remove the media option
  r8169: small 8101 comment
  r8169: confusion between hardware and IP header alignment
  r8169: merge with version 8.001.00 of Realtek's r8168 driver
  r8169: merge with version 6.001.00 of Realtek's r8169 driver
  r8169: prettify mac_version
  r8169: populate the hw_start handler for the 8110
  r8169: populate the hw_start handler for the 8168
  ...

The CPU must not touch the buffer after it was DMA-mapped.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

The CPU must not touch the buffer after it was DMA-mapped.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

  - The CPU must not touch the buffer after it was DMA-mapped.
  - The size argument of dma_unmap_single(...page_table...) was bogus.
  - Move a comment closer to the code to which it refers to.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

Add rudimentary check for the case that the page table overflows due to
merging of s/g elements by the IOMMU.  This would have lead to
overwriting of arbitrary memory.

After this change I expect that an offending command will be
unsuccessfully retried until the scsi_device is taken offline by SCSI
core.  It's a border case and not worth to implement a recovery
strategy.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Kristian Høgsberg <krh@redhat.com>

This is required per SBP-2 clause 5.2.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Kristian Høgsberg <krh@redhat.com>

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Kristian Høgsberg <krh@redhat.com>

noticed by Jay Fenlason
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Kristian Høgsberg <krh@redhat.com>

Replace a cast with a container_of().  As long as nobody reorders the
structure elements, they do the same thing, but container_of() is more
readable.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (added complete_command_orb)
Acked-by: Kristian Høgsberg <krh@redhat.com>

The isochronous packet format is still not documented, but this
is a good first step.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (format, wording)

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

This affects of course only the "soft shutdown" case, e.g. "modprobe -r
firewire-sbp2", while it doesn't matter for hot unplug.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

This currently only affects one bridge in the hardwired blacklist.
I don't own one of those, hence haven't tested it.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

cleanup after "firewire: support S100B...S400B and link slower than PHY"
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

Use a speed probe to determine the speed over 1394b buses and of nodes
which report a link speed less than their PHY speed.

Log the effective maximum speed of newly created nodes in dmesg.

Also, read the config ROM (except bus info block) at the maximum speed
rather than S100.  This isn't a real optimization though because we
still only use quadlet read requests for the entire ROM.

The patch also adds support for S1600 and S3200, although such hardware
does not exist yet.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

Table-based gap count optimization cannot be used if 1394b repeater PHYs
are present.  But it does work with 1394b leaf nodes.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

Also remove some errno printouts which will be shown by infrastructure
code anyway.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

cleanup after support of single-buffer requests was dropped
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Hoegsberg <krh@redhat.com>

Based on patch "the scheduled removal of RAW1394_REQ_ISO_{SEND,LISTEN}"
from Adrian Bunk, November 20 2006.

This patch also removes the underlying facilities in ohci1394 and
disables them in pcilynx.  That is, hpsb_host_driver.devctl() and
hpsb_host_driver.transmit_packet() are no longer used for iso reception
and transmission.

Since video1394 and dv1394 only work with ohci1394 and raw1394's rawiso
interface has never been implemented in pcilynx, pcilynx is now no
longer useful for isochronous applications.

raw1394 will still handle the request types but will complete the
requests with errors that indicate API version conflicts.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

This is upwards compatible, except that integer values other than 0 or 1
are no longer accepted.  But values like "Y", "N", "no", "nnoooh!" work
now.

Also, improve a comment on the serialize_io parameter and make the
ORB_SET_EXCLUSIVE macro ultra-safe.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

Association of a host device with a node on NUMA machines optimizes
allocations of skbs given from the networking stack to eth1394.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

After ieee1394 was converted away from class_device like the networking
subsystem was already in 2.6.21, eth1394's device may point to the
fw-host device as its parent again like in 2.6.20.

This affects userspace tools which examine the sysfs representation of
eth1394's device.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>