Make irq handling more efficient, by passing board pointer via
request_irq() to our irq handler's dev_id argument.

This eliminates a table lookup upon each interrupt, and eliminates an
associated global variable (the table).
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

* pass card number to irq handler

* use card number in irq handler to avoid looping through each adapter
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

* invert sense of request_irq() test.  otherwise we will always fail,
  when IRQ is available.

* no need to use 'irq' function arg, its stored in a data struct already
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Polling currently calls the irq handler, which loops through all the
boards, calling the work function for all polling boards with work.

irq handling loops through all the boards, finding the specific board
that applies to us, and calling the work just for that one board.

The two logics are sufficiently different to warrant different
functions, rather than being slack and calling the same function in two
different ways.

This serves to make the interrupt handler a -lot- more efficient.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

No changes besides code movement and glue.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Remove always-false tests in irq handler.

Also a few other minor cleanups.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

None of the drivers with a struct pardevice's ->irq_func() hook ever
used the 'irq' argument passed to it, so remove it.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

parport_ieee1284_interrupt() was not using its first arg at all.
Delete.

parport_generic_irq()'s second arg makes its first arg completely
redundant.  Delete, and use port->irq in the one place where we actually
need it.

Also, s/__inline__/inline/ to make the code look nicer.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Several arches used the exact same code for their parport irq handling.
Make that code generic, in parport_irq_handler().

Also, s/__inline__/inline/ in include/linux/parport.h.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9p: v9fs_vfs_rename incorrect clunk order
  9p: fix memleak in fs/9p/v9fs.c
  9p: add virtio transport

Commits

  58b053e4 ("Update arch/ to use sg helpers")
  45711f1a ("[SG] Update drivers to use sg helpers")
  fa05f128 ("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: NRalf Baechle <ralf@linux-mips.org>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

In v9fs_vfs_rename function labels don't match the fids that are clunked.
The correct clunk order is clunking newdirfid first and then olddirfid next.
Signed-off-by: NLatchesar Ionkov <lucho@ionkov.net>
Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>

This patch fixes a memory leak introduced by
commit ba17674f.

Spotted by the Coverity checker.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>

This adds a transport to 9p for communicating between guests and a host
using a virtio based transport.
Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>

Signed-off-by: NEmil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

Signed-off-by: NEmil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

Suggested by Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  mlx4_core: Increase command timeout for INIT_HCA to 10 seconds
  IPoIB/cm: Use common CQ for CM send completions
  IB/uverbs: Fix checking of userspace object ownership
  IB/mlx4: Sanity check userspace send queue sizes
  IPoIB: Rewrite "if (!likely(...))" as "if (unlikely(!(...)))"
  IB/ehca: Enable large page MRs by default
  IB/ehca: Change meaning of hca_cap_mr_pgsize
  IB/ehca: Fix ehca_encode_hwpage_size() and alloc_fmr()
  IB/ehca: Fix masking error in {,re}reg_phys_mr()
  IB/ehca: Supply QP token for SRQ base QPs
  IPoIB: Use round_jiffies() for ah_reap_task
  RDMA/cma: Fix deadlock destroying listen requests
  RDMA/cma: Add locking around QP accesses
  IB/mthca: Avoid alignment traps when writing doorbells
  mlx4_core: Kill mlx4_write64_raw()

* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest: (45 commits)
  Use "struct boot_params" in example launcher
  Loading bzImage directly.
  Revert lguest magic and use hook in head.S
  Update lguest documentation to reflect the new virtual block device name.
  generalize lgread_u32/lgwrite_u32.
  Example launcher handle guests not being ready for input
  Update example launcher for virtio
  Lguest support for Virtio
  Remove old lguest I/O infrrasructure.
  Remove old lguest bus and drivers.
  Virtio helper routines for a descriptor ringbuffer implementation
  Module autoprobing support for virtio drivers.
  Virtio console driver
  Block driver using virtio.
  Net driver using virtio
  Virtio interface
  Boot with virtual == physical to get closer to native Linux.
  Allow guest to specify syscall vector to use.
  Rename "cr3" to "gpgdir" to avoid x86-specific naming.
  Pagetables to use normal kernel types
  ...

As it is some callers of synchronize_irq rely on memory barriers
to provide synchronisation against the IRQ handlers.  For example,
the tg3 driver does

	tp->irq_sync = 1;
	smp_mb();
	synchronize_irq();

and then in the IRQ handler:

	if (!tp->irq_sync)
		netif_rx_schedule(dev, &tp->napi);

Unfortunately memory barriers only work well when they come in
pairs.  Because we don't actually have memory barriers on the
IRQ path, the memory barrier before the synchronize_irq() doesn't
actually protect us.

In particular, synchronize_irq() may return followed by the
result of netif_rx_schedule being made visible.

This patch (mostly written by Linus) fixes this by using spin
locks instead of memory barries on the synchronize_irq() path.
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:
  SELinux: always check SIGCHLD in selinux_task_wait

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Add Vitaly Bordug as PPC8xx maintainer
  [POWERPC] 4xx: Enable EMAC on Bamboo board
  [POWERPC] 4xx: Enable EMAC for PPC405 Walnut board
  [POWERPC] 4xx: Fix timebase clock selection on Walnut
  [POWERPC] 4xx: Enable EMAC on the PPC 440GP Ebony board
  [POWERPC] 4xx: Split early debug output and early boot console for 44x
  [POWERPC] 4xx: Enable NEW EMAC support for Sequoia 440EPx.
  [POWERPC] 4xx: Add RGMII support for Sequoia 440EPx

* git://git.infradead.org/mtd-2.6:
  [MTD] [NOR] Fix deadlock in Intel chip driver caused by get_chip recursion
  [JFFS2] Fix return value from jffs2_write_end()
  [MTD] [OneNAND] Fix wrong free the static address in onenand_sim
  [MTD] [NAND] Replace -1 with -EBADMSG in nand error correction code
  [RSLIB] BUG() when passing illegal parameters to decode_rs8() or decode_rs16()
  [MTD] [NAND] treat any negative return value from correct() as an error
  [MTD] [NAND] nandsim: bugfix in initialization
  [MTD] Fix typo in Alauda config option help text.
  [MTD] [NAND] add s3c2440-specific read_buf/write_buf
  [MTD] [OneNAND] onenand-sim: fix kernel-doc and typos
  [JFFS2] Tidy up fix for ACL/permissions problem.

* 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
  [AVR32] ARRAY_SIZE() cleanup
  [AVR32] Implement at32_add_device_cf()
  [AVR32] Implement more at32_add_device_foo() functions
  [AVR32] Fix a couple of sparse warnings
  [AVR32] Wire up AT73C213 sound driver on ATSTK1000 board
  [AVR32] Platform code for pata_at32

* 'sg' of git://git.kernel.dk/linux-2.6-block:
  sparc64: zero out dma_length
  fvr32: fixup dma-mapping for new sg layout
  sh/sh64: fixup dma-mapping for new sg layout
  Fix sctp compile
  m68knommu: remove sg_address()
  frv: update comment in scatterlist to reflect new setup
  blackfin: remove sg_address()
  arm: sg fallout
  mips: sg_page() fallout
  alpha: sg_virt() fallout
  intel-iommu: fix sg_page()
  parisc: fix sg_page() fallout
  ide: build fix
  net: fix xfrm build - missing scatterlist.h include
  [BLOCK] blk_rq_map_sg: force clear termination bit
  [BLOCK] Don't clear sg_dma_len/addr() in blk_rq_map_sg()
  s390 zfcp: sg fixups
  powerpc: Fix fallout from sg_page() changes
  IB/ehca: Fix sg_page() fallout
  arm: build fix

* 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa:
  [ALSA] version 1.0.15
  [ALSA] hda-codec - Fix possible array overflow
  [ALSA] sound/core/control.c: hard-irq-safe -> hard-irq-unsafe lock warning
  [ALSA] usb-audio: Another USB mic quirk for Logitech Communicator webcam
  [ALSA] hda-codec - Fix build without CONFIG_SND_HDA_GENERIC
  [ALSA] hda-codec - Fix Conexant 5045 volumes
  [ALSA] hda-codec - Fix conflict of Master volume in STAC92xx codec
  [ALSA] snd-bt87x: Make the load_all option work correctly
  [ALSA] protect Dreamcast PCM driver (AICA) from G2 bus effects
  [ALSA] bt87x - Fix section mismatch
  [ALSA] hda-codec - Fix AD1986A Lenovo auto-mute
  [ALSA] This simplifies and fixes waiting loops of the mce_down()

Reduce the function pointer mess of the m68knommu timer code by calling
directly to the local hardware's timer setup, and expose the local
common timer interrupt handler to the lower level hardware timer.

Ultimately this will save definitions of all these functions across all
the platform code to setup the function pointers (which for any given
m68knommu CPU family member can be only one set of hardware timer
functions).
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

A new style serial driver for the Freescale ColdFire UART to replace
the old style one currently in the tree (drivers/serial/mcfserial.c).

Currently this UART is only found in the ColdFire CPU family of parts
(thus I prefixed this patch [M68KNOMMU]).

This has been around for a long while now, tested on all available
platforms.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Remove build reference to arch/m68knommu/boot directory, it doesn't
exist.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Remove use of undefined symbols CONFIG_TELOS, CONFIG_M68EZ328ADS
and CONFIG_ALMA_ANS.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Improve the readability of mii_do_cmd().
Signed-off-by: NPhilippe De Muyter <phdm@macqel.be>
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Fix system call restart handling. We can call directly to the
restart handler, no need to back track through trap that isn't
even implemented on m68knommu.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add make support for the Savant/Rosie1 board.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

There is no separate stack region addresses to print at startup time,
so remove it from the debug listing
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add configure support for the Savant/Rosie1 board.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Updated defconfig with new options for m68knommu.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Up to now m68knommu has been using the asm-m68k/module.h instead of
defining its own. There are recent changes there that we don't need
(fixups specifically). We don't need much support here so it makes
sense to have an m68knommu specific one now.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Define __clear_user macro, consistent with other architectures.
fs/signalfd.c won't compile without it.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>