Beyond the requirements of the architecture standard Cavium also supports
8k and 32k pages.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: David Daney <ddaney@caviumnetworks.com>

Addition of -fwrapv option in 2.6.29 discloses possible overflow with
signed arithmetics.  For example, result of "a * 6 / 12" (int a =
400000000) is 200000000 without -fwrapv but -157913941 with -fwrapv.

Change some variable to unsigned to avoid such overflows.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Synchronize dma_map_page/dma_unmap_page and dma_map_single/dma_unmap_single.
This will reduce unnecessary writebacks and invalidates.

[Ralf: make dma_unmap_page an inline function.]
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

This is useful for IDT RC32332, RC32334 and NEC VR5500 processors which do
not implement the full MIPS32 / MIPS64 architecture.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Quoting from Loongson2FUserGuide.pdf:

5.22.1 Hazards
The processor detects most of the pipeline hazards in hardware, including
CP0 hazards and load hazards. No NOP instructions are required to correct
instruction sequences.
Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The compat.h does not need seccomp.h since TIF_32BIT was moved to
thread_info.h

This fixes a build error of 64-bit kernel without CONFIG_SECCOMP.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: : David Daney <ddaney@caviumnetworks.com>
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>

The LTP timerfd01 test is failing (blocking forever) on the 32-bit ABIs. We
need to use the compat_* wrappers for these system calls.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Introduced by 99aa5029937ee926e3b249369e208d7013cd381b.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

I have taken Wu Zhangjin's and Philippe Vachon's version as references,
did a little modification and tested on 16K page size kernel. It works
well.

Unfornately although it already has defined cpu_has_dc_aliases as 1, 4k
page size still not working.  More work needed here.
Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

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

The following symbols are needlessly defined global:

default_mode
default_var
gbe_mem_phys
gbe_turn_off
gbefb_exit
gbefb_init
gbefb_setup

This error was noticed by namespacecheck when compiling ip32_defconfig.

This patch makes the symbols static.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The following symbols are needlessly defined global: cpuerr_irq and
memerr_irq. This patch makes the symbols static.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The file arch/mips/sgi-ip32/ip32-berr.c needlessly defines the function
ip32_be_handler() as global, and this patch makes it static.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The file arch/mips/mm/sc-rm7k.c needlessly defines two global symbols:

rm7k_sc_ops
rm7k_tcache_enabled

This patch makes these symbols static.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

au1xxx_power_dev_t? is never defined;  get rid of all PM stuff as well
since it is not in the driver source anyway.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

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

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

Commit 779e7d41 created a name collision
in SMTC builds.  The attached patch corrects this in a a
not-too-terribly-ugly manner.  Note that the SMTC case has to come
first, because CEVT_R4K will also be true.
Signed-off-by: Kevin D. Kissell <kevink@paralogos.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Signed-off-by: Kevin D. Kissell <kevink@paralogos.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6:
  xtensa: Fix linker script to include .literal sections
  xtensa: update s6105_defconfig for ccount calibration
  xtensa: implement ccount calibration for s6000
  xtensa: fix wrong extern declaration renamed in code using it
  xtensa: register gpio chip before use
  xtensa: always use correct stack pointer for stack traces
  xtensa: Fix checksum header file
  xtensa: Fix architecture specific Kconfig

* git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus:
  Squashfs: cody tidying, remove commented out line in Makefile
  Squashfs: check page size is not larger than the filesystem block size
  Squashfs: fix breakage when page size > metadata block size

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: destroy bdi on error

* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: SVM: Remove port 80 passthrough
  KVM: Make EFER reads safe when EFER does not exist
  KVM: Fix NX support reporting
  KVM: SVM: Fix cross vendor migration issue with unusable bit

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: check size of array structured data exchanged via ioctls
  nilfs2: fix lock order reversal in nilfs_clean_segments ioctl
  nilfs2: fix possible circular locking for get information ioctls
  nilfs2: ensure to clear dirty state when deleting metadata file block
  nilfs2: fix circular locking dependency of writer mutex
  nilfs2: fix possible recovery failure due to block creation without writer

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/mlx4: Don't overwrite fast registration page list when posting work request
  RDMA/cxgb3: Don't complete flushed send work requests twice

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/drm-2.6:
  drm/i915: automatically select FRAMEBUFFER_CONSOLE if !EMBEDDED

This reverts commit a425a638.

Now that the previous commit removed the "readpage" actor for hugetlb
files, read-ahead will no longer mess up the mapping, and there's no
longer any reason to treat hugetlbfs mappings specially.
Tested-and-acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The core VM assumes the page size used by the address_space in
inode->i_mapping is PAGE_SIZE but hugetlbfs breaks this assumption by
inserting pages into the page cache at offsets the core VM considers
unexpected.

This would not be a problem except that hugetlbfs also provide a
->readpage implementation.  As it exists, the core VM can assume the
base page size is being used, allocate pages on behalf of the
filesystem, insert them into the page cache and call ->readpage to
populate them.  These pages are the wrong size and at the wrong offset
for hugetlbfs causing confusion.

This patch deletes the ->readpage implementation for hugetlbfs on the
grounds the core VM should not be allocating and populating pages on
behalf of hugetlbfs.  There should be no existing users of the
->readpage implementation so it should not cause a regression.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>

Normally the block size (by default 128K) will be larger than the
page size, unless a non-standard block size has been specified in
Mksquashfs, and the page size is larger than 4K.
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>

Squashfs is broken on any system where the page size is larger than
the metadata size (8192).  This is easily fixed by ensuring cache->pages
is always > 0.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Doug Chapman <doug.chapman@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: add NOGET quirk for devices from CH Products
  HID: fix dropped device-specific quirks

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
  dma: fix ipu_idmac.c to not discard the last queued buffer
  ioatdma: fix "ioatdma frees DMA memory with wrong function"
  ipu_idmac: Use disable_irq_nosync() from within irq handlers.
  dmatest: fix max channels handling

* 'for-2.6.30' of git://linux-nfs.org/~bfields/linux:
  nfsd: silence lockdep warning
  lockd: fix list corruption on lockd restart
  nfsd4: check for negative dentry before use in nfsv4 readdir
  nfsd41: slots are freed with session
  svcrdma: clean up error paths.
  svcrdma: Fix dma map direction for rdma read targets

This also fixes the case of a single queued buffer, for example, when taking a
single frame snapshot with the mx3_camera driver.
Reported-by: Agustin Ferrin Pozuelo <gatoguan-os@yahoo.com>
Tested-by: Agustin Ferrin Pozuelo <gatoguan-os@yahoo.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

as reported by Alexander Beregalov <a.beregalov@gmail.com>

ioatdma 0000:00:08.0: DMA-API: device driver frees DMA memory with
wrong function [device address=0x000000007f76f800] [size=2000 bytes]
[map
ped as single] [unmapped as page]

The ioatdma driver was unmapping all regions
(either allocated as page or single) using unmap_page.
This patch lets dma driver recognize if unmap_single or unmap_page should be used.
It introduces two new dma control flags:
DMA_COMPL_SRC_UNMAP_SINGLE and DMA_COMPL_DEST_UNMAP_SINGLE.
They should be set to indicate dma driver to do dma-unmapping as single
(first one for the source, tha latter for the destination).
If respective flag is not set, the driver assumes dma-unmapping as page.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Tested-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Fix a size check WRT the manual pages.  This was inadvertently broken by
commit 9fe5ad9c ("flag parameters
add-on: remove epoll_create size param").
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: <Hiroyuki.Mach@gmail.com>
Cc: rohit verma <rohit.170309@gmail.com>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Fix a bug in viafb on x86_64 builds (e.g. for VIA Nano CPU).

You cannot make the assumption that sizeof(unsigned int) ==
sizeof(unsigned long), so the parsing of the default mode (640x480) fails,
leading to a division by zero during insmod of the driver.
Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Cc: <JosephChan@via.com.tw>
Cc: <ScottFang@viatech.com.cn>
Cc: Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>