Since blk_rq_map_sg() sets the termination bit at the end of the sg
table, we could see it prematurely on the next mapping unless we
force drivers to do a full sg_init_table() prior to each mapping. So
force clear the termination bit to avoid having to put that clear in
the driver for every mapping.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

It's not a proper lvalue on all archs.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

Based on initial patch from Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

Fix fallout from 18dabf47:

In file included from include/linux/dma-mapping.h:52,
                 from drivers/base/dma-mapping.c:10:
include/asm/dma-mapping.h: In function 'dma_map_sg':
include/asm/dma-mapping.h:288: error: 'struct scatterlist' has no member named 'page'
include/asm/dma-mapping.h:288: error: 'struct scatterlist' has no member named 'page'
include/asm/dma-mapping.h:288: error: 'struct scatterlist' has no member named 'page'
include/asm/dma-mapping.h:289: error: 'struct scatterlist' has no member named 'page'
include/asm/dma-mapping.h:290: error: 'struct scatterlist' has no member named 'page'
include/asm/dma-mapping.h: In function 'dma_sync_sg_for_cpu':
include/asm/dma-mapping.h:331: error: 'struct scatterlist' has no member named 'page'

drivers/scsi/ps3rom.c: In function 'fetch_to_dev_buffer':
drivers/scsi/ps3rom.c:150: error: 'struct scatterlist' has no member named 'page'
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

More fallout from sg_page changes:

drivers/infiniband/hw/ehca/ehca_mrmw.c: In function 'ehca_set_pagebuf_user1':
drivers/infiniband/hw/ehca/ehca_mrmw.c:1779: error: 'struct scatterlist' has no member named 'page'
drivers/infiniband/hw/ehca/ehca_mrmw.c: In function 'ehca_check_kpages_per_ate':
drivers/infiniband/hw/ehca/ehca_mrmw.c:1835: error: 'struct scatterlist' has no member named 'page'
drivers/infiniband/hw/ehca/ehca_mrmw.c: In function 'ehca_set_pagebuf_user2':
drivers/infiniband/hw/ehca/ehca_mrmw.c:1870: error: 'struct scatterlist' has no member named 'page'
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

arch/arm/common/dmabounce.c: In function 'dma_map_sg':
arch/arm/common/dmabounce.c:445: error: implicit declaration of function 'sg_page'
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

Fix mnt_flush_task() misplaced kernel-doc.
Fix typos in some of the doc text.

Warning(linux-2.6.23-git17//fs/proc/base.c:2280): No description found for parameter 'mnt'
Warning(linux-2.6.23-git17//fs/proc/base.c:2280): No description found for parameter 'pid'
Warning(linux-2.6.23-git17//fs/proc/base.c:2280): No description found for parameter 'tgid'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Fix kernel-doc for auditsc parameter changes.

Warning(linux-2.6.23-git17//kernel/auditsc.c:1623): No description found for parameter 'dentry'
Warning(linux-2.6.23-git17//kernel/auditsc.c:1666): No description found for parameter 'dentry'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Commit 238e4f14 ("ide: add
IDE_HFLAG_NO_LBA48 and IDE_HFLAG_NO_LBA48_DMA host flags") caused a
regression because the host_flags in struct hwif_s wasn't expanded to
cope with the fact that the host flags no longer fit in 16 bits.
Signed-off-by: David S. Miller <davem@davemloft.net>
[ I hate having to add good commit descriptions.  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: appletouch - apply idle reset logic to all touchpads
  Input: usbtouchscreen - add support for GoTop tablet devices
  Input: bf54x-keys - return real error when request_irq() fails
  Input: i8042 - export i8042_command()

* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
  Blackfin arch: use KBUILD_CFLAGS and KBUILD_AFLAGS in Makefile
  Blackfin arch: Javier Herrer writes: fix building when icache and dcache is disabled

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  KVM: Use new smp_call_function_mask() in kvm_flush_remote_tlbs()
  sched: don't clear PF_VCPU in scheduler
  KVM: Improve local apic timer wraparound handling
  KVM: Fix local apic timer divide by zero
  KVM: Move kvm_guest_exit() after local_irq_enable()
  KVM: x86 emulator: fix access registers for instructions with ModR/M byte and Mod = 3
  KVM: VMX: Force vm86 mode if setting flags during real mode
  KVM: x86 emulator: implement 'movnti mem, reg'
  KVM: VMX: Reset mmu context when entering real mode
  KVM: VMX: Handle NMIs before enabling interrupts and preemption
  KVM: MMU: Set shadow pte atomically in mmu_pte_write_zap_pte()
  KVM: x86 emulator: fix repne/repnz decoding
  KVM: x86 emulator: fix merge screwup due to emulator split

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] 4level-fixup cleanup
  [S390] Cleanup page table definitions.
  [S390] Introduce follow_table in uaccess_pt.c
  [S390] Remove unused user_seg from thread structure.
  [S390] tlb flush fix.
  [S390] kernel: Fix dump on panic for DASDs under LPAR.
  [S390] struct class_device -> struct device conversion.
  [S390] cio: Fix incomplete commit for uevent suppression.
  [S390] cio: Use to_channelpath() for device to channel path conversion.
  [S390] Add per-cpu idle time / idle count sysfs attributes.
  [S390] Update default configuration.

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: ARRAY_SIZE() cleanup
  [SPARC64]: small Makefile cleanups
  [SPARC64]: Stop using __do_IRQ().
  [SPARC64]: Update defconfig.

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (30 commits)
  [IPSEC] IPV6: Fix to add tunnel mode SA correctly.
  [NET]: Cut off the queue_mapping field from sk_buff
  [NET]: Hide the queue_mapping field inside netif_subqueue_stopped
  [NET]: Make and use skb_get_queue_mapping
  [NET]: Use the skb_set_queue_mapping where appropriate
  [INET]: Use MODULE_ALIAS_NET_PF_PROTO_TYPE where possible.
  [INET]: Let inet_diag and friends autoload
  [NIU]: Cleanup PAGE_SIZE checks a bit
  [NET]: Fix SKB_WITH_OVERHEAD calculation
  [ATM]: Fix clip module reload crash.
  [TG3]: Update version to 3.85
  [TG3]: PCI command adjustment
  [TG3]: Add management FW version to ethtool report
  [TG3]: Add 5723 support
  [Bluetooth] Convert RFCOMM to use kthread API
  [Bluetooth] Add constant for Bluetooth socket options level
  [Bluetooth] Add support for handling simple eSCO links
  [Bluetooth] Add address and channel attribute to RFCOMM TTY device
  [Bluetooth] Fix wrong argument in debug code of HIDP
  [Bluetooth] Add generic driver for Bluetooth USB devices
  ...

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Enable restart support for lite5200 board
  [POWERPC] Add restart support for mpc52xx based platforms
  [POWERPC] Update device tree binding for mpc5200 gpt
  [POWERPC] Add mpc52xx_find_and_map_path(), refactor utility functions
  [POWERPC] bestcomm: Restrict bus prefetch bugfix to original mpc5200 silicon.

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] time: Make c0_compare_int_usable more bullet proof
  [MIPS] Kbuild: Use the new cc-cross-prefix feature.
  [MIPS] Fix include wrapper symbol to something sane.
  [MIPS] Malta: Delete dead code.
  [MIPS] time: Add GT641xx timer0 clockevent driver
  [MIPS] time: SMP-proofing of Sibyte clockevent/clocksource code.
  [MIPS] time: SMP/NUMA-proofing of IP27 HUB RT timer code.
  [MIPS] time: Fix calculation in clockevent_set_clock()

* git://git.infradead.org/battery-2.6:
  apm_power: calculate to_full/to_empty time using energy
  apm_power: improve battery finding algorithm
  apm_power: fix obviously wrong logic for time reporting

* 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (37 commits)
  V4L/DVB (6382): saa7134: fix NULL dereference at suspend time for cards without IR receiver
  V4L/DVB (6380): ivtvfb: Removal of the 'osd_compat' module option
  V4L/DVB (6379): patch which improves GotView Saa7135 remote control
  V4L/DVB (6378b): Updates info about the removal of V4L1 at feature-removal-schedule.txt
  V4L/DVB (6378a): Removal of VIDIOC_[G|S]_MPEGCOMP from feature-removal-schedule.txt
  V4L/DVB (6378): DiB0700-device: Using 1.10 firmware
  V4L/DVB (6357): pvrusb2: Improve encoder chip health tracking
  V4L/DVB (6356): "while (!ca->wakeup)" breaks the CAM initialisation
  V4L/DVB (6352): ir-kbd-i2c: Missing break statement
  V4L/DVB (6350): V4L: possible leak in em28xx_init_isoc
  V4L/DVB (6348): ivtv: undo video mute when closing the radio
  V4L/DVB (6347): ivtv: fix video mute when radio is used
  V4L/DVB (6346): ivtvfb: YUV output size fix when ivtvfb is not loaded
  V4L/DVB (6345): ivtvfb: YUV handling of an image which is not visible in the display area
  V4L/DVB (6343): ivtvfb: check return value of unregister_framebuffer
  V4L/DVB (6342): ivtv: fix circular locking (bug 9037)
  V4L/DVB (6341): ivtv: fix resizing MPEG1 streams
  V4L/DVB (6340): ivtvfb: screen mode change sometimes goes wrong
  V4L/DVB (6339): ivtv: set the video color to black instead of green when capturing from the radio
  V4L/DVB (6338): ivtv: fix incorrect EBUSY return
  ...

Commit 4f9a58d7 ("increase
AT_VECTOR_SIZE to terminate saved_auxv properly") changes the size of
AT_VECTOR_SIZE from hard coded '44' to a calculation based on the value
of AT_VECTOR_SIZE_ARCH and AT_VECTOR_SIZE_BASE.

The change works for arch/powerpc, but it breaks arch/ppc because the
needed AT_VECTOR_SIZE_ARCH is not present in include/asm-ppc/system.h
and a default value of 0 is used instead.  This results in
AT_VECTOR_SIZE being too small and it causes a kernel crash on loading
init.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* ssh://master.kernel.org/pub/scm/linux/kernel/git/sam/kbuild:
  kbuild: cc-cross-prefix spelling
  kbuild: allow depmod in cross builds again
  kbuild: fix modules_install after a 'make vmlinux'

Gabriel C reported that modprobing appletalk on current git gives a
warning in dmesg :

   "sysctl table check failed: /net/appletalk .3.7 procname does not match binary path procname"

Oops.  My apologies it appears I made a mistake when creating my table
to check up on sysctl values.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Tested-by: Gabriel C <nix.or.die@googlemail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: fw-ohci: shut up a superfluous compiler warning
  firewire: fw-ohci: log a note about unsupported features

* 'sg' of git://git.kernel.dk/linux-2.6-block:
  Add CONFIG_DEBUG_SG sg validation
  Change table chaining layout
  Update arch/ to use sg helpers
  Update swiotlb to use sg helpers
  Update net/ to use sg helpers
  Update fs/ to use sg helpers
  [SG] Update drivers to use sg helpers
  [SG] Update crypto/ to sg helpers
  [SG] Update block layer to use sg helpers
  [SG] Add helpers for manipulating SG entries

Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Use write_c0_compare(read_c0_count()) to clear interrupt.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

And why are there i8253.h and 8253pit.h ...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

And make use of it for Cobalt.  A few others such as the Malta could make
use of it as well.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The BCM148 has 4 cores but there are also just 4 generic timers available
so use the ZBbus cycle counter instead of it.  In addition the ZBbus
counter also offers a much higher resolution and 64-bit counting so I'm
considering a later complete conversion to it once I figure out if all
members of the Sibyte SOC family support it - the docs seem to agree but
the headers files seem to disagree ...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add a Kconfig entry which will toggle some sanity checks on the sg
entry and tables.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

Change the page member of the scatterlist structure to be an unsigned
long, and encode more stuff in the lower bits:

- Bits 0 and 1 zero: this is a normal sg entry. Next sg entry is located
  at sg + 1.
- Bit 0 set: this is a chain entry, the next real entry is at ->page_link
  with the two low bits masked off.
- Bit 1 set: this is the final entry in the sg entry. sg_next() will return
  NULL when passed such an entry.

It's thus important that sg table users use the proper accessors to get
and set the page member.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>