Pull networking updates from David Miller:

 1) UAPI changes for networking from David Howells

 2) A netlink dump is an operation we can sleep within, and therefore we
    need to make sure the dump provider module doesn't disappear on us
    meanwhile.  Fix from Gao Feng.

 3) Now that tunnels support GRO, we have to be more careful in
    skb_gro_reset_offset() otherwise we OOPS, from Eric Dumazet.

 4) We can end up processing packets for VLANs we aren't actually
    configured to be on, fix from Florian Zumbiehl.

 5) Fix routing cache removal regression in redirects and IPVS.  The
    core issue on the IPVS side is that it wants to rewrite who the
    nexthop is and we have to explicitly accomodate that case.  From
    Julian Anastasov.

 6) Error code return fixes all over the networking drivers from Peter
    Senna Tschudin.

 7) Fix routing cache removal regressions in IPSEC, from Steffen
    Klassert.

 8) Fix deadlock in RDS during pings, from Jeff Liu.

 9) Neighbour packet queue can trigger skb_under_panic() because we do
    not reset the network header of the SKB in the right spot.  From
    Ramesh Nagappa.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits)
  RDS: fix rds-ping spinlock recursion
  netdev/phy: Prototype of_mdio_find_bus()
  farsync: fix support for over 30 cards
  be2net: Remove code that stops further access to BE NIC based on UE bits
  pch_gbe: Fix build error by selecting all the possible dependencies.
  e1000e: add device IDs for i218
  ixgbe/ixgbevf: Limit maximum jumbo frame size to 9.5K to avoid Tx hangs
  ixgbevf: Set the netdev number of Tx queues
  UAPI: (Scripted) Disintegrate include/linux/tc_ematch
  UAPI: (Scripted) Disintegrate include/linux/tc_act
  UAPI: (Scripted) Disintegrate include/linux/netfilter_ipv6
  UAPI: (Scripted) Disintegrate include/linux/netfilter_ipv4
  UAPI: (Scripted) Disintegrate include/linux/netfilter_bridge
  UAPI: (Scripted) Disintegrate include/linux/netfilter_arp
  UAPI: (Scripted) Disintegrate include/linux/netfilter/ipset
  UAPI: (Scripted) Disintegrate include/linux/netfilter
  UAPI: (Scripted) Disintegrate include/linux/isdn
  UAPI: (Scripted) Disintegrate include/linux/caif
  net: fix typo in freescale/ucc_geth.c
  vxlan: fix more sparse warnings
  ...

Pull sparc update from David Miller:
 "This is just the UAPI commits for sparc via David Howells."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  UAPI: (Scripted) Disintegrate arch/sparc/include/asm

Pull slave-dmaengine updates from Vinod Koul:
 "This time we have Andy updates on dw_dmac which is attempting to make
  this IP block available as PCI and platform device though not fully
  complete this time.

  We also have TI EDMA moving the dma driver to use dmaengine APIs, also
  have a new driver for mmp-tdma, along with bunch of small updates.

  Now for your excitement the merge is little unusual here, while
  merging the auto merge on linux-next picks wrong choice for pl330
  (drivers/dma/pl330.c) and this causes build failure.  The correct
  resolution is in linux-next.  (DMA: PL330: Fix build error) I didn't
  back merge your tree this time as you are better than me so no point
  in doing that for me :)"

Fixed the pl330 conflict as in linux-next, along with trivial header
file conflicts due to changed includes.

* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (29 commits)
  dma: tegra: fix interrupt name issue with apb dma.
  dw_dmac: fix a regression in dwc_prep_dma_memcpy
  dw_dmac: introduce software emulation of LLP transfers
  dw_dmac: autoconfigure data_width or get it via platform data
  dw_dmac: autoconfigure block_size or use platform data
  dw_dmac: get number of channels from hardware if possible
  dw_dmac: fill optional encoded parameters in register structure
  dw_dmac: mark dwc_dump_chan_regs as inline
  DMA: PL330: return ENOMEM instead of 0 from pl330_alloc_chan_resources
  DMA: PL330: Remove redundant runtime_suspend/resume functions
  DMA: PL330: Remove controller clock enable/disable
  dmaengine: use kmem_cache_zalloc instead of kmem_cache_alloc/memset
  DMA: PL330: Set the capability of pdm0 and pdm1 as DMA_PRIVATE
  ARM: EXYNOS: Set the capability of pdm0 and pdm1 as DMA_PRIVATE
  dma: tegra: use list_move_tail instead of list_del/list_add_tail
  mxs/dma: Enlarge the CCW descriptor area to 4 pages
  dw_dmac: utilize slave_id to pass request line
  dmaengine: mmp_tdma: add dt support
  dmaengine: mmp-pdma support
  spi: davici - make davinci select edma
  ...

Pull MMC updates from Chris Ball:
 "Core:
   - Add DT properties for card detection (broken-cd, cd-gpios,
     non-removable)
   - Don't poll non-removable devices
   - Fixup/rework eMMC sleep mode/"power off notify" feature
   - Support eMMC background operations (BKOPS).  To set the one-time
     programmable fuse that enables bkops on an eMMC that doesn't
     already have it set, you can use the "mmc bkops enable" command in:

       git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git

  Drivers:
   - atmel-mci, dw_mmc, pxa-mci, dove, s3c, spear: Add device tree
     support
   - bfin_sdh: Add support for the controller in bf60x
   - dw_mmc: Support Samsung Exynos SoCs
   - eSDHC: Add ADMA support
   - sdhci: Support testing a cd-gpio (from slot-gpio) instead of
     presence bit
   - sdhci-pltfm: Support broken-cd DT property
   - tegra: Convert to only supporting DT (mach-tegra has gone DT-only)"

* tag 'mmc-merge-for-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (67 commits)
  mmc: core: Fixup broken suspend and eMMC4.5 power off notify
  mmc: sdhci-spear: Add clk_{un}prepare() support
  mmc: sdhci-spear: add device tree bindings
  mmc: sdhci-s3c: Add clk_(enable/disable) in runtime suspend/resume
  mmc: core: Replace MMC_CAP2_BROKEN_VOLTAGE with test for fixed regulator
  mmc: sdhci-pxav3: Use sdhci_get_of_property for parsing DT quirks
  mmc: dt: Support "broken-cd" property in sdhci-pltfm
  mmc: sdhci-s3c: fix the wrong number of max bus clocks
  mmc: sh-mmcif: avoid oops on spurious interrupts
  mmc: sh-mmcif: properly handle MMC_WRITE_MULTIPLE_BLOCK completion IRQ
  mmc: sdhci-s3c: Fix crash on module insertion for second time
  mmc: sdhci-s3c: Enable only required bus clock
  mmc: Revert "mmc: dw_mmc: Add check for IDMAC configuration"
  mmc: mxcmmc: fix bug that may block a data transfer forever
  mmc: omap_hsmmc: Pass on the suspend failure to the PM core
  mmc: atmel-mci: AP700x PDC is not connected to MCI
  mmc: atmel-mci: DMA can be used with other controllers
  mmc: mmci: use clk_prepare_enable and clk_disable_unprepare
  mmc: sdhci-s3c: Add device tree support
  mmc: dw_mmc: add support for exynos specific implementation of dw-mshc
  ...

Pull MTD updates from David Woodhouse:

 - Disable broken mtdchar mmap() on MMU systems
 - Additional ECC tests for NAND flash, and some test cleanups
 - New NAND and SPI chip support
 - Fixes/cleanup for SH FLCTL NAND controller driver
 - Improved hardware support for GPMI NAND controller
 - Conversions to device-tree support for various drivers
 - Removal of obsolete drivers (sbc8xxx, bcmring, etc.)
 - New LPC32xx drivers for MLC and SLC NAND
 - Further cleanup of NAND OOB/ECC handling
 - UAPI cleanup merge from David Howells (just moving files, since MTD
   headers were sorted out long ago to separate user-visible from kernel
   bits)

* tag 'for-linus-20121009' of git://git.infradead.org/mtd-2.6: (168 commits)
  mtd: Disable mtdchar mmap on MMU systems
  UAPI: (Scripted) Disintegrate include/mtd
  mtd: nand: detect Samsung K9GBG08U0A, K9GAG08U0F ID
  mtd: nand: decode Hynix MLC, 6-byte ID length
  mtd: nand: increase max OOB size to 640
  mtd: nand: add generic READ ID length calculation functions
  mtd: nand: split simple ID decode into its own function
  mtd: nand: split extended ID decoding into its own function
  mtd: nand: split BB marker options decoding into its own function
  mtd: nand: remove redundant ID read
  mtd: nand: remove unnecessary variable
  mtd: docg4: add missing HAS_IOMEM dependency
  mtd: gpmi: initialize the timing registers only one time
  mtd: gpmi: add EDO feature for imx6q
  mtd: gpmi: do not set the default values for the extra clocks
  mtd: gpmi: simplify the DLL setting code
  mtd: gpmi: add a new field for HW_GPMI_CTRL1
  mtd: gpmi: do not get the clock frequency in gpmi_begin()
  mtd: gpmi: add a new field for HW_GPMI_TIMING1
  mtd: add helpers to get the supportted ONFI timing mode
  ...

Pull btrfs update from Chris Mason:
 "This is a large pull, with the bulk of the updates coming from:

   - Hole punching

   - send/receive fixes

   - fsync performance

   - Disk format extension allowing more hardlinks inside a single
     directory (btrfs-progs patch required to enable the compat bit for
     this one)

  I'm cooking more unrelated RAID code, but I wanted to make sure this
  original batch makes it in.  The largest updates here are relatively
  old and have been in testing for some time."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (121 commits)
  btrfs: init ref_index to zero in add_inode_ref
  Btrfs: remove repeated eb->pages check in, disk-io.c/csum_dirty_buffer
  Btrfs: fix page leakage
  Btrfs: do not warn_on when we cannot alloc a page for an extent buffer
  Btrfs: don't bug on enomem in readpage
  Btrfs: cleanup pages properly when ENOMEM in compression
  Btrfs: make filesystem read-only when submitting barrier fails
  Btrfs: detect corrupted filesystem after write I/O errors
  Btrfs: make compress and nodatacow mount options mutually exclusive
  btrfs: fix message printing
  Btrfs: don't bother committing delayed inode updates when fsyncing
  btrfs: move inline function code to header file
  Btrfs: remove unnecessary IS_ERR in bio_readpage_error()
  btrfs: remove unused function btrfs_insert_some_items()
  Btrfs: don't commit instead of overcommitting
  Btrfs: confirmation of value is added before trace_btrfs_get_extent() is called
  Btrfs: be smarter about dropping things from the tree log
  Btrfs: don't lookup csums for prealloc extents
  Btrfs: cache extent state when writing out dirty metadata pages
  Btrfs: do not hold the file extent leaf locked when adding extent item
  ...

Pull CIFS fixes from Steve French.

* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: reinstate the forcegid option
  Convert properly UTF-8 to UTF-16
  [CIFS] WARN_ON_ONCE if kernel_sendmsg() returns -ENOSPC

This is the revised patch for fixing rds-ping spinlock recursion
according to Venkat's suggestions.

RDS ping/pong over TCP feature has been broken for years(2.6.39 to
3.6.0) since we have to set TCP cork and call kernel_sendmsg() between
ping/pong which both need to lock "struct sock *sk". However, this
lock has already been hold before rds_tcp_data_ready() callback is
triggerred. As a result, we always facing spinlock resursion which
would resulting in system panic.

Given that RDS ping is only used to test the connectivity and not for
serious performance measurements, we can queue the pong transmit to
rds_wq as a delayed response.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
CC: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
CC: David S. Miller <davem@davemloft.net>
CC: James Morris <james.l.morris@oracle.com>
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Ensure that of_mdio_find_bus() matches the prototype in the header (and
stop sparse complaining) by including the header with the prototype.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

We're trying to fill a 64 bit bitmap but only the lower 30 shifts work
because the shift wraps around.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

On certain platforms, BE hardware could  falsely indicate UE.
For BE family of NICs, do not set hw_error based on the UE bits.
If there was a real fatal error, the corresponding h/w block will
automatically go offline and stop traffic.
Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Fengguang reported a kernel build failure as following:
drivers/built-in.o: In function `pch_gbe_ioctl':
pch_gbe_main.c:(.text+0x510370): undefined reference to `pch_ch_control_write'
pch_gbe_main.c:(.text+0x510393): undefined reference to `pch_ch_control_write'
pch_gbe_main.c:(.text+0x5103b3): undefined reference to `pch_ch_control_write'
...

It's a regression by commit da158646. The root cause is that
the CONFIG_PPS is not set there, consequently CONFIG_PTP_1588_CLOCK
can not be set anyway, which finally causes ptp_pch and pch_gbe_main
build failures.

As David prefers to use *select* to fix such module co-dependency issues,
this patch explicitly selects all the possible dependencies of PCH_PTP.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Haicheng Li <haicheng.lee@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

UAPI Disintegration 2012-10-09
Signed-off-by: David S. Miller <davem@davemloft.net>

UAPI Disintegration 2012-10-09
Signed-off-by: David S. Miller <davem@davemloft.net>

Pulled mainline in order to get the UAPI infrastructure already
merged before I pull in David Howells's UAPI trees for networking.
Signed-off-by: David S. Miller <davem@davemloft.net>

UAPI Disintegration 2012-10-09
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Chris Mason <chris.mason@fusionio.com>

This code was broken because it assumed that all MTD devices were map-based.
Disable it for now, until it can be fixed properly for the next merge window.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

UAPI Disintegration 2012-10-09

Conflicts:
	MAINTAINERS
	arch/arm/configs/bcmring_defconfig
	arch/arm/mach-imx/clk-imx51-imx53.c
	drivers/mtd/nand/Kconfig
	drivers/mtd/nand/bcm_umi_nand.c
	drivers/mtd/nand/nand_bcm_umi.h
	drivers/mtd/nand/orion_nand.c

In csum_dirty_buffer, we first get eb from page->private.
Then we check if the page is the first page of eb. Later
we check it again. Remove the repeated check here.
Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>

Alloc_dummy_extent_buffer will not free the first page in the eb array if we
fail to allocate a page, fix this.  Thanks,
Reported-by: David Sterba <dave@jikos.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

It's just annoying and the user will have gotten a nice OOM killer message
so they are already fully aware they are screwed :).  Thanks,
Reported-by: Jérôme Poulin <jeromepoulin@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

Get rid of the BUG_ON(ret == -ENOMEM) in __extent_read_full_page.  Thanks,
Reported-by: Jérôme Poulin <jeromepoulin@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

We were freeing non-existent pages which was causing a panic for a user who
was suffering from ENOMEM.  This patch fixes the problem.  Thanks,
Reported-by: Jérôme Poulin <jeromepoulin@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

So far the return code of barrier_all_devices() is ignored, which
means that errors are ignored. The result can be a corrupt
filesystem which is not consistent.
This commit adds code to evaluate the return code of
barrier_all_devices(). The normal btrfs_error() mechanism is used to
switch the filesystem into read-only mode when errors are detected.

In order to decide whether barrier_all_devices() should return
error or success, the number of disks that are allowed to fail the
barrier submission is calculated. This calculation accounts for the
worst RAID level of metadata, system and data. If single, dup or
RAID0 is in use, a single disk error is already considered to be
fatal. Otherwise a single disk error is tolerated.

The calculation of the number of disks that are tolerated to fail
the barrier operation is performed when the filesystem gets mounted,
when a balance operation is started and finished, and when devices
are added or removed.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>

In check-integrity, detect when a superblock is written that points
to blocks that have not been written to disk due to I/O write errors.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>

If a filesystem is mounted with compression and then remounted by adding nodatacow,
the compression is disabled but the compress flag is still visible.
Also, if a filesystem is mounted with nodatacow and then remounted with compression,
nodatacow flag is still present but it's not active.
This patch:
- removes compress flags and notifies that the compression has been disabled if the
  filesystem is mounted with nodatacow
- removes nodatacow and nodatasum flags if mounted with compress.
Signed-off-by: Andrei Popa <andrei.popa@i-neo.ro>

Fix various messages to include newline and module prefix.
Signed-off-by: Daniel J Blueman <daniel@quora.org>

We can just copy the in memory inode into the tree log directly, no sense in
updating the fs tree so we can copy it into the tree log tree.  Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

When building btrfs from kernel code, it will report:

	fs/btrfs/extent_io.h:281: warning: 'extent_buffer_page' declared inline after being called
	fs/btrfs/extent_io.h:281: warning: previous declaration of 'extent_buffer_page' was here
	fs/btrfs/extent_io.h:280: warning: 'num_extent_pages' declared inline after being called
	fs/btrfs/extent_io.h:280: warning: previous declaration of 'num_extent_pages' was here

because of the wrong declaration of inline functions.
Signed-off-by: Robin Dong <sanbai@taobao.com>

Because the value of extent_map is only a correct value or NULL,
so IS_ERR is unnecessary.
Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>

The function btrfs_insert_some_items() would not be called by any other functions,
so remove it.
Signed-off-by: Robin Dong <sanbai@taobao.com>

I don't think we have the same problem that this was supposed to fix
originally since we can allocate chunks in the enospc path now.  This code
is causing us to constantly commit the transaction as we get close to using
all of our available space in our currently allocated chunks, instead of
allocating another chunk and carrying on with life, which is not nice for
performance.  Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

We should confirm the value of extent_map before calling
trace_btrfs_get_extent() because the value of extent_map has the
possibility of NULL.
Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>

When we truncate existing items in the tree log we've been searching for
each individual item and removing them.  This is unnecessary churn and
searching, just keep track of the slot we are on and how many items we need
to delete and delete them all at once.  Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

The tree logging stuff was looking up csums to copy over for prealloc
extents which is just work we don't need to be doing.  Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

Everytime we write out dirty pages we search for an offset in the tree,
convert the bits in the state, and then when we wait we search for the
offset again and clear the bits.  So for every dirty range in the io tree we
are doing 4 rb searches, which is suboptimal.  With this patch we are only
doing 2 searches for every cycle (modulo weird things happening).  Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

For some reason we unlock everything except the leaf we are on, set the path
blocking and then add the extent item for the extent we just finished
writing.  I can't for the life of me figure out why we would want to do
this, and the history doesn't really indicate that there was a real reason
for it, so just remove it.  This will reduce our tree lock contention on
heavy writes.  Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

There are a coule scenarios where farming metadata csumming off to an async
thread doesn't help.  The first is if our processor supports crc32c, in
which case the csumming will be fast and so the overhead of the async model
is not worth the cost.  The other case is for our tree log.  We will be
making that stuff dirty and writing it out and waiting for it immediately.
Even with software crc32c this gives me a ~15% increase in speed with O_SYNC
workloads.  Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

commit 7ca4be45 limited csum items to
PAGE_CACHE_SIZE.  It used min() with incompatible types in 32bit which
generates warnings:

fs/btrfs/file-item.c: In function ‘btrfs_csum_file_blocks’:
fs/btrfs/file-item.c:717: warning: comparison of distinct pointer types lacks a cast

This uses min_t(u32,) to fix the warnings.  u32 seemed reasonable
because btrfs_root->leafsize is u32 and PAGE_CACHE_SIZE is unsigned
long.
Signed-off-by: Zach Brown <zab@zabbo.net>