GitHub/exynos8895/android_kernel_samsung_universal8895.git
15 years agoMerge branches 'cxgb3', 'ehca', 'misc', 'mlx4', 'mthca' and 'nes' into for-linus
Roland Dreier [Sun, 14 Jun 2009 20:31:19 +0000 (13:31 -0700)]
Merge branches 'cxgb3', 'ehca', 'misc', 'mlx4', 'mthca' and 'nes' into for-linus

15 years agomlx4_core: Don't double-free IRQs when falling back from MSI-X to INTx
Roland Dreier [Sun, 14 Jun 2009 20:30:45 +0000 (13:30 -0700)]
mlx4_core: Don't double-free IRQs when falling back from MSI-X to INTx

When both MSI-X and legacy INTx fail to generate an interrupt, the
driver frees the MSI-X interrupts twice.  Fix this by clearing the
have_irq flag for the MSI-X interrupts when they are freed the first
time.  This is the same bug that was reported in ib_mthca by Yinghai
Lu <yhlu.kernel@gmail.com>.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoIB/mthca: Don't double-free IRQs when falling back from MSI-X to INTx
Roland Dreier [Sat, 13 Jun 2009 22:14:09 +0000 (15:14 -0700)]
IB/mthca: Don't double-free IRQs when falling back from MSI-X to INTx

When both MSI-X and legacy INTx fail to generate an interrupt, the
driver frees the MSI-X interrupts twice.  Fix this by clearing the
have_irq flag for the MSI-X interrupts when they are freed the first
time.

Reported-by: Yinghai Lu <yhlu.kernel@gmail.com>
Tested-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoIB/mlx4: Add strong ordering to local inval and fast reg work requests
Jack Morgenstein [Fri, 5 Jun 2009 17:36:24 +0000 (10:36 -0700)]
IB/mlx4: Add strong ordering to local inval and fast reg work requests

The ConnectX Programmer's Reference Manual states that the "SO" bit
must be set when posting Fast Register and Local Invalidate send work
requests.  When this bit is set, the work request will be executed
only after all previous work requests on the send queue have been
executed.  (If the bit is not set, Fast Register and Local Invalidate
WQEs may begin execution too early, which violates the defined
semantics for these operations)

This fixes the issue with NFS/RDMA reported in
<http://lists.openfabrics.org/pipermail/general/2009-April/059253.html>

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Cc: <stable@kernel.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoIB/ehca: Remove superfluous bitmasks from QP control block
Joachim Fenkes [Wed, 3 Jun 2009 20:25:42 +0000 (13:25 -0700)]
IB/ehca: Remove superfluous bitmasks from QP control block

All the fields in the control block are nicely right-aligned, so no
masking is necessary.

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoRDMA/cxgb3: Limit fast register size based on T3 limitations
Steve Wise [Wed, 27 May 2009 21:43:39 +0000 (14:43 -0700)]
RDMA/cxgb3: Limit fast register size based on T3 limitations

T3 firmware only supports one WRs worth of page list for fast register
work requests.  The driver currently allows 2 WRs worth, which
doesn't work for T3, so reduce the limit in the driver.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoRDMA/cxgb3: Report correct port state and MTU
Steve Wise [Wed, 27 May 2009 21:42:36 +0000 (14:42 -0700)]
RDMA/cxgb3: Report correct port state and MTU

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agomlx4_core: Add module parameter for number of MTTs per segment
Eli Cohen [Wed, 27 May 2009 21:38:34 +0000 (14:38 -0700)]
mlx4_core: Add module parameter for number of MTTs per segment

The current MTT allocator uses kmalloc() to allocate a buffer for its
buddy allocator, and thus is limited in the amount of MTT segments
that it can control.  As a result, the size of memory that can be
registered is limited too.  This patch uses a module parameter to
control the number of MTT entries that each segment represents,
allowing more memory to be registered with the same number of
segments.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoIB/mthca: Add module parameter for number of MTTs per segment
Eli Cohen [Wed, 27 May 2009 21:36:16 +0000 (14:36 -0700)]
IB/mthca: Add module parameter for number of MTTs per segment

The current MTT allocator uses kmalloc() to allocate a buffer for its
buddy allocator, and thus is limited in the amount of MTT segments
that it can control.  As a result, the size of memory that can be
registered is limited too.  This patch uses a module parameter to
control the number of MTT entries that each segment represents,
allowing more memory to be registered with the same number of
segments.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoRDMA/nes: Fix off-by-one bugs in reset_adapter_ne020() and init_serdes()
Roel Kluin [Fri, 15 May 2009 17:16:45 +0000 (10:16 -0700)]
RDMA/nes: Fix off-by-one bugs in reset_adapter_ne020() and init_serdes()

With a postfix increment, i is incremented one past 10K/5K before the
loop ends, so the error messages will be displayed too soon if the
test succeeds on the last iteration.  Fix the comparisons to be >
instead of >=.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoinfiniband: Remove void casts
Jack Stone [Wed, 13 May 2009 23:53:39 +0000 (16:53 -0700)]
infiniband: Remove void casts

Remove uneeded casts of void *.

Signed-off-by: Jack Stone <jwjstone@fastmail.fm>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoIB/ehca: Increment version number
Stefan Roscher [Wed, 13 May 2009 23:52:43 +0000 (16:52 -0700)]
IB/ehca: Increment version number

Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoIB/ehca: Remove unnecessary memory operations for userspace queue pairs
Stefan Roscher [Wed, 13 May 2009 23:52:43 +0000 (16:52 -0700)]
IB/ehca: Remove unnecessary memory operations for userspace queue pairs

The queue map for flush completion circumvention is only used for
kernel space queue pairs.  This patch skips the allocation of the
queue maps in case the QP is created for userspace.  In addition, this
patch does not iomap the galpas for kernel usage if the queue pair is
only used in userspace.  These changes will improve the performance of
creation of userspace queue pairs.

Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoIB/ehca: Fall back to vmalloc() for big allocations
Stefan Roscher [Wed, 13 May 2009 23:52:42 +0000 (16:52 -0700)]
IB/ehca: Fall back to vmalloc() for big allocations

In case of large queue pairs there is the possibillity of allocation
failures due to memory fragmentation when using kmalloc().  To ensure
the memory is allocated even if kmalloc() can not find chunks which
are big enough, we fall back to allocating the memory with vmalloc().

Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoIB/ehca: Replace vmalloc() with kmalloc() for queue allocation
Anton Blanchard [Wed, 13 May 2009 23:52:40 +0000 (16:52 -0700)]
IB/ehca: Replace vmalloc() with kmalloc() for queue allocation

To improve performance of driver resource allocation, replace
vmalloc() calls with kmalloc().

Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus
Linus Torvalds [Wed, 13 May 2009 23:33:25 +0000 (16:33 -0700)]
Merge git://git./linux/kernel/git/pkl/squashfs-linus

* 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

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi...
Linus Torvalds [Wed, 13 May 2009 23:32:57 +0000 (16:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mszeredi/fuse

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

15 years agoMerge branch 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Wed, 13 May 2009 23:32:30 +0000 (16:32 -0700)]
Merge branch 'kvm-updates/2.6.30' of git://git./virt/kvm/kvm

* '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

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke...
Linus Torvalds [Wed, 13 May 2009 23:32:16 +0000 (16:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ryusuke/nilfs2

* '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

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Wed, 13 May 2009 23:31:12 +0000 (16:31 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband

* '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

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
Linus Torvalds [Wed, 13 May 2009 23:30:43 +0000 (16:30 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/drm-2.6

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

15 years agoMerge branches 'cxgb3' and 'mlx4' into for-linus
Roland Dreier [Wed, 13 May 2009 22:16:17 +0000 (15:16 -0700)]
Merge branches 'cxgb3' and 'mlx4' into for-linus

15 years agoRevert "Ignore madvise(MADV_WILLNEED) for hugetlbfs-backed regions"
Linus Torvalds [Wed, 13 May 2009 15:29:12 +0000 (08:29 -0700)]
Revert "Ignore madvise(MADV_WILLNEED) for hugetlbfs-backed regions"

This reverts commit a425a638c858fd10370b573bde81df3ba500e271.

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>
15 years agoRemove implementation of readpage from the hugetlbfs_aops
Mel Gorman [Wed, 13 May 2009 14:56:10 +0000 (15:56 +0100)]
Remove implementation of readpage from the hugetlbfs_aops

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>
15 years agoSquashfs: cody tidying, remove commented out line in Makefile
Phillip Lougher [Wed, 13 May 2009 02:25:20 +0000 (03:25 +0100)]
Squashfs: cody tidying, remove commented out line in Makefile

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
15 years agoSquashfs: check page size is not larger than the filesystem block size
Phillip Lougher [Wed, 13 May 2009 01:59:26 +0000 (02:59 +0100)]
Squashfs: check page size is not larger than the filesystem block size

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>
15 years agoSquashfs: fix breakage when page size > metadata block size
Doug Chapman [Wed, 13 May 2009 01:56:39 +0000 (02:56 +0100)]
Squashfs: fix breakage when page size > metadata block size

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>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Wed, 13 May 2009 00:12:54 +0000 (17:12 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

* '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

15 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
Linus Torvalds [Wed, 13 May 2009 00:12:36 +0000 (17:12 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/djbw/async_tx

* '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

15 years agoMerge branch 'for-2.6.30' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Wed, 13 May 2009 00:11:56 +0000 (17:11 -0700)]
Merge branch 'for-2.6.30' of git://linux-nfs.org/~bfields/linux

* '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

15 years agodma: fix ipu_idmac.c to not discard the last queued buffer
Guennadi Liakhovetski [Tue, 12 May 2009 07:16:29 +0000 (09:16 +0200)]
dma: fix ipu_idmac.c to not discard the last queued buffer

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>
15 years agoioatdma: fix "ioatdma frees DMA memory with wrong function"
Maciej Sosnowski [Thu, 23 Apr 2009 10:31:51 +0000 (12:31 +0200)]
ioatdma: fix "ioatdma frees DMA memory with wrong function"

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>
15 years agoepoll: fix size check in epoll_create()
Davide Libenzi [Tue, 12 May 2009 20:19:44 +0000 (13:19 -0700)]
epoll: fix size check in epoll_create()

Fix a size check WRT the manual pages.  This was inadvertently broken by
commit 9fe5ad9c8cef9ad5873d8ee55d1cf00d9b607df0 ("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>
15 years agoviafb: make it work on x86_64
Harald Welte [Tue, 12 May 2009 20:19:42 +0000 (13:19 -0700)]
viafb: make it work on x86_64

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>
15 years agofbdev: remove outdated advice about I2C configuration
Jean Delvare [Tue, 12 May 2009 20:19:41 +0000 (13:19 -0700)]
fbdev: remove outdated advice about I2C configuration

The required I2C modules are now selected automatically by the means
of select statements in Kconfig, so there is no point in confusing the
users with options he/she would be supposed to enable manually.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoalpha: unbreak percpu again
Tejun Heo [Tue, 12 May 2009 20:19:39 +0000 (13:19 -0700)]
alpha: unbreak percpu again

Commit 9b8de7479d0dbab1ed98b5b015d44232c9d3d08e ("FRV: Fix the section
attribute on UP DECLARE_PER_CPU()") cleaned up DECLARE/DEFINE_PER_CPU()
macros and in the process made alpha percpu.h include
include/asm-generic/percpu.h which breaks compilation due to duplicate
definitions.

Remove inclusion of generic asm helper file and define whatever necessary
in alpha header proper.

In the longer term, percpu definitions will be unified and all these
little subtlties will be removed.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: David Howells <dhowells@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agortc: rtc-twl4030 don't mask alarm interrupts on suspend
Kim Kyuwon [Tue, 12 May 2009 20:19:38 +0000 (13:19 -0700)]
rtc: rtc-twl4030 don't mask alarm interrupts on suspend

This patch enables the alarm interrupt of TWL4030 RTC to wake up the
system from suspend. You can test this patch with following command.

# echo +10 > /sys/class/rtc/rtc0/wakealarm; echo mem > /sys/power/state;

Signed-off-by: Kim Kyuwon <q1.kim@samsung.com>
Acked-by: David Brownell <david-b@pacbell.net>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agosyscalls.h add the missing sys_pipe2 declaration
Arnd Bergmann [Tue, 12 May 2009 20:19:37 +0000 (13:19 -0700)]
syscalls.h add the missing sys_pipe2 declaration

In order to build the generic syscall table, we need a declaration for
every system call.  sys_pipe2 was added without a proper declaration, so
add this to syscalls.h now.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopxa2xx_spi: prevent panic case setup() fails
Daniel Ribeiro [Tue, 12 May 2009 20:19:36 +0000 (13:19 -0700)]
pxa2xx_spi: prevent panic case setup() fails

setup() may fail before ctldata is set, causing a kernel panic on
cleanup().

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'i2c-for-2630-rc5' of git://aeryn.fluff.org.uk/bjdooks/linux
Linus Torvalds [Tue, 12 May 2009 18:21:51 +0000 (11:21 -0700)]
Merge branch 'i2c-for-2630-rc5' of git://aeryn.fluff.org.uk/bjdooks/linux

* 'i2c-for-2630-rc5' of git://aeryn.fluff.org.uk/bjdooks/linux:
  i2c-cpm: Pass dev ptr to dma_*_coherent rather than NULL
  i2c: Enable i2c-s3c2410 for S3C64XX too
  i2c-mpc: bug fix for MPC52xx clock setting and printout
  i2c-pxa.c: timeouts off by 1

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Tue, 12 May 2009 18:21:24 +0000 (11:21 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: tsc2007 - fix locking in hrtimer handler
  Input: atkbd - add force release keys quirk for Amilo Xi 3650
  Input: ff-memless - fix signed to unsigned bit overflow
  Input: joydev - blacklist digitizers

15 years agodrm/i915: automatically select FRAMEBUFFER_CONSOLE if !EMBEDDED
Jesse Barnes [Tue, 12 May 2009 16:08:31 +0000 (09:08 -0700)]
drm/i915: automatically select FRAMEBUFFER_CONSOLE if !EMBEDDED

People keep getting bitten by this, so just auto-select it by default,
assuming most configurations will actually want a console.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoRemove unreached code in drivers/net/mlx4/en_rx.c
Dan Carpenter [Tue, 12 May 2009 10:33:39 +0000 (11:33 +0100)]
Remove unreached code in drivers/net/mlx4/en_rx.c

Remove the return after the goto.  We want the goto because it frees
memory as well as returning err.

Found by smatch (http://repo.or.cz/w/smatch.git).

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoi2c-cpm: Pass dev ptr to dma_*_coherent rather than NULL
Mark Ware [Tue, 21 Apr 2009 12:49:02 +0000 (22:49 +1000)]
i2c-cpm: Pass dev ptr to dma_*_coherent rather than NULL

Recent DMA changes result in a BUG() when NULL is passed to
dma_alloc_coherent in place of a device.

Signed-off-by: Mark Ware <mware@elphinstone.net>
[ben-linux@fluff.org: fix patch moves]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
15 years agoi2c: Enable i2c-s3c2410 for S3C64XX too
Mark Brown [Thu, 9 Apr 2009 16:03:24 +0000 (17:03 +0100)]
i2c: Enable i2c-s3c2410 for S3C64XX too

This controller is also present on the S3C64xx series processors so
enable the driver in Kconfig for those platforms.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
15 years agoi2c-mpc: bug fix for MPC52xx clock setting and printout
Wolfgang Grandegger [Thu, 9 Apr 2009 09:59:52 +0000 (11:59 +0200)]
i2c-mpc: bug fix for MPC52xx clock setting and printout

The clock setting did not work for the MPC52xx due to a stupid bug.
Furthermore, the dev info output "clock=0" for old device trees was
misleading. This patch fixes both issues.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
15 years agoInput: tsc2007 - fix locking in hrtimer handler
Thierry Reding [Mon, 11 May 2009 15:36:39 +0000 (08:36 -0700)]
Input: tsc2007 - fix locking in hrtimer handler

Now that hrtimers are always running in hard irq context we can't
unconditionally enable interrupts at the end of the timer function.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Kwangwoo Lee <kwangwoo.lee@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
15 years agoInput: atkbd - add force release keys quirk for Amilo Xi 3650
Adrian Batzill [Mon, 11 May 2009 22:22:16 +0000 (15:22 -0700)]
Input: atkbd - add force release keys quirk for Amilo Xi 3650

Signed-off-by: Adrian Batzill <agib@gmx.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
15 years agonfsd: silence lockdep warning
J. Bruce Fields [Mon, 11 May 2009 20:10:19 +0000 (16:10 -0400)]
nfsd: silence lockdep warning

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
15 years agoMerge branch 'for-linus' of git://repo.or.cz/cris-mirror
Linus Torvalds [Mon, 11 May 2009 19:43:41 +0000 (12:43 -0700)]
Merge branch 'for-linus' of git://repo.or.cz/cris-mirror

* 'for-linus' of git://repo.or.cz/cris-mirror:
  CRISv32: Fix typo compile error in ARTPEC-3 gpio driver.
  CRIS: Wire up syscalls signalfd4 to writev.
  CRISv32: Remove obsolete vcs_hook.o from Makefile
  CRIS: Merge machine dependent boot/compressed and boot/rescue

15 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Mon, 11 May 2009 19:42:55 +0000 (12:42 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  ata_piix: The Sony TZ90 needs the cable type hardcoding
  ata_piix: ICH7 does not support correct MWDMA timings
  Avoid world-writable sysfs files in libata driver.
  libata: fix suspend/resume for ATA SEMB devices
  libata: clear ering on resume
  pata_pdc202xx_old: fix UDMA33 handling
  sata_mv: use new sata phy register settings for new devices
  libata: fix attach error handling

15 years agodup2: Fix return value with oldfd == newfd and invalid fd
Jeff Mahoney [Mon, 11 May 2009 18:25:34 +0000 (14:25 -0400)]
dup2: Fix return value with oldfd == newfd and invalid fd

The return value of dup2 when oldfd == newfd and the fd isn't valid is
not getting properly sign extended.  We end up with 4294967287 instead
of -EBADF.

I've reproduced this on SLE11 (2.6.27.21), openSUSE Factory
(2.6.29-rc5), and Ubuntu 9.04 (2.6.28).

This patch uses a signed int for the error value so it is properly
extended.

Commit 6c5d0512a091480c9f981162227fdb1c9d70e555 introduced this
regression.

Reported-by: Jiri Dluhos <jdluhos@novell.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoata_piix: The Sony TZ90 needs the cable type hardcoding
Alan Cox [Wed, 6 May 2009 16:09:41 +0000 (17:09 +0100)]
ata_piix: The Sony TZ90 needs the cable type hardcoding

The Sony TZ90 needs the cable type hardcoding. See bug #12734

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoata_piix: ICH7 does not support correct MWDMA timings
Alan Cox [Wed, 6 May 2009 16:08:44 +0000 (17:08 +0100)]
ata_piix: ICH7 does not support correct MWDMA timings

See Errata documentation. The recommended workaround is to use PIO4 instead
which will we automatically do by flagging this mode not available.

Signed-off-by: Alan Cox <alan.cox@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoAvoid world-writable sysfs files in libata driver.
Vitaly Mayatskikh [Mon, 4 May 2009 13:48:45 +0000 (15:48 +0200)]
Avoid world-writable sysfs files in libata driver.

Signed-off-by: Vitaly Mayatskikh <v.mayatskih@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agolibata: fix suspend/resume for ATA SEMB devices
Borislav Petkov [Sun, 26 Apr 2009 14:33:34 +0000 (16:33 +0200)]
libata: fix suspend/resume for ATA SEMB devices

79b42babbac2a5a522b8e269fb2811b6e1063030 fixed identifying ATA devices
reporting 3c/c3 signature which belongs to SEMB devices now. However,
suspending the machine with such device (WDC WD2500AAJS-6 01.0) fails
with the following:

hda: host max PIO4 wanted PIO255(auto-tune) selected PIO4
hda: UDMA/100 mode selected
hdb: host max PIO4 wanted PIO255(auto-tune) selected PIO4
hdb: UDMA/66 mode selected
sd 1:0:0:0: [sda] Starting disk
ata5: SATA link down (SStatus 0 SControl 300)
ata1: SATA link down (SStatus 0 SControl 300)
ata3: SATA link down (SStatus 0 SControl 300)
ata6: SATA link down (SStatus 0 SControl 300)
ata2: softreset failed (device not ready)
ata2: failed due to HW bug, retry pmp=0
ata4: softreset failed (device not ready)
ata4: failed due to HW bug, retry pmp=0
ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: class mismatch 1 != 7
ata2.00: revalidation failed (errno=-19)
ata2: limiting SATA link speed to 1.5 Gbps
ata4.00: configured for UDMA/133
ata2: softreset failed (device not ready)
ata2: failed due to HW bug, retry pmp=0
ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata2.00: class mismatch 1 != 7
ata2.00: revalidation failed (errno=-19)
ata2.00: disabled
sd 1:0:0:0: rejecting I/O to offline device
sd 1:0:0:0: [sda] START_STOP FAILED
sd 1:0:0:0: [sda] Result: hostbyte=0x01 driverbyte=0x00
PM: Device 1:0:0:0 failed to thaw: error 65536
sd 3:0:0:0: [sdb] Starting disk

due to a class mismatch in ata_dev_revalidate(). Fix it by adding the
ATA_DEV_SEMB device class to the check.

CC: Tejun Heo <htejun@gmail.com>
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agolibata: clear ering on resume
Tejun Heo [Thu, 23 Apr 2009 00:55:28 +0000 (09:55 +0900)]
libata: clear ering on resume

Error timestamps are in jiffies which doesn't run while suspended and
PHY events during resume isn't too uncommon.  When the two are
combined, it can lead to unnecessary speed downs if the machine is
suspended and resumed repeatedly.  Clear error history on resume.

This was reported and verified in bnc#486803 by Vladimir Botka.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Vladimir Botka <vbotka@novell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agopata_pdc202xx_old: fix UDMA33 handling
Bartlomiej Zolnierkiewicz [Mon, 20 Apr 2009 20:31:25 +0000 (22:31 +0200)]
pata_pdc202xx_old: fix UDMA33 handling

The original driver doesn't use 66 MHz clock for UDMA33.

[ The alternative solution would be to adjust UDMA33 timings
  for 66 MHz clock but I think that it is safer to stick with
  old & tested behavior for now. ]

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agosata_mv: use new sata phy register settings for new devices
Martin Michlmayr [Mon, 4 May 2009 18:58:50 +0000 (20:58 +0200)]
sata_mv: use new sata phy register settings for new devices

Marvell's new SoC (65 nano) needs different settings for its SATA
PHY registers.

Tested-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agolibata: fix attach error handling
Tejun Heo [Sat, 9 May 2009 16:06:54 +0000 (01:06 +0900)]
libata: fix attach error handling

New device attach path in ata_eh_revalidate_and_attach() is divided
into two separate loops because ATA requires IDENTIFY to be issued to
slave first while the user expects to see device probe messages from
the master device.  new_mask is used to track which devices are the
new ones between the first loop and the second.

This usually works well but if an error occurs during configuration
stage, ata_dev_revalidate_and_attach() returns with error code and
forgets new_mask.  On the retry run, dev->class is set and new_mask
for the device is clear, so the device just gets revalidated and thus
ends up skipping post-configuration procedure including scheduling of
SCSI_HOTPLUG for the device.  When this occurs, ATA part of probing
works fine but SCSI probing usually doesn't happen and makes the
device unreachable.

The behavior has been around for a very long time but it has been
uncovered with the recent addition of 1_5_GBPS horkage which uses
-EAGAIN return value from ata_dev_configure() to restart the probing
sequence after forcing cable speed.

This can be fixed by making sure dev->class is permanently set only
after all configurations are successfully complete.  Fix it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Tim Connors <tconnors+linuxkml@astro.swin.edu.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agonilfs2: check size of array structured data exchanged via ioctls
Ryusuke Konishi [Mon, 11 May 2009 14:24:47 +0000 (23:24 +0900)]
nilfs2: check size of array structured data exchanged via ioctls

Although some ioctls of nilfs2 exchange data in the form of indirectly
referenced array, some of them lack size check on the array elements.

This inserts the missing checks and rejects requests if data of ioctl
does not have a valid format.

We usually don't have to check size of structures that we associated
with ioctl commands because the size is tested implicitly for
identifying ioctl command; the checks this patch adds are for the
cases where the implicit check is not applied.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
15 years agoHID: add NOGET quirk for devices from CH Products
Alan Stern [Wed, 6 May 2009 19:48:49 +0000 (15:48 -0400)]
HID: add NOGET quirk for devices from CH Products

This patch (as1240) adds the NOGET quirk for three devices from CH
Products: the Pro pedals, the Combatstick joystick, and the Flight-Sim
yoke.  Without these quirks, the devices haven't worked for many
kernel releases.  Sometimes replugging them after boot-up would get
them to work and sometimes they wouldn't work at all.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Sean Hildebrand <silverwraithii@gmail.com>
Reported-by: Sid Boyce <sboyce@blueyonder.co.uk>
Tested-by: Sean Hildebrand <silverwraithii@gmail.com>
Tested-by: Sid Boyce <sboyce@blueyonder.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
15 years agoHID: fix dropped device-specific quirks
Zoltan Karcagi [Wed, 6 May 2009 14:30:21 +0000 (16:30 +0200)]
HID: fix dropped device-specific quirks

Device-specific quirks are set up correctly in their respective vendor-specific
driver, then get overwritten in usbhid_parse().

This is only issue for device-specific NOGET quirks being set by driver for a
few devices out there.

Signed-off-by: Zoltan Karcagi <zkr@freemail.hu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
15 years agointel-iommu: PAE memory corruption fix
David Woodhouse [Sun, 10 May 2009 22:57:41 +0000 (23:57 +0100)]
intel-iommu: PAE memory corruption fix

PAGE_MASK is 0xFFFFF000 on i386 -- even with PAE.

So it's not sufficient to ensure that you use phys_addr_t or uint64_t
everywhere you handle physical addresses -- you also have to avoid using
the construct 'addr & PAGE_MASK', because that will strip the high 32
bits of the address.

This patch avoids that problem by using PHYSICAL_PAGE_MASK instead of
PAGE_MASK where appropriate. It leaves '& PAGE_MASK' in a few instances
that don't matter -- where it's being used on the virtual bus addresses
we're dishing out, which are 32-bit anyway.

Since PHYSICAL_PAGE_MASK is not present on other architectures, we have
to define it (to PAGE_MASK) if it's not already defined.

Maybe it would be better just to fix PAGE_MASK for i386/PAE?

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoKVM: SVM: Remove port 80 passthrough
Avi Kivity [Mon, 11 May 2009 11:21:10 +0000 (14:21 +0300)]
KVM: SVM: Remove port 80 passthrough

KVM optimizes guest port 80 accesses by passthing them through to the host.
Some AMD machines die on port 80 writes, allowing the guest to hard-lock the
host.

Remove the port passthrough to avoid the problem.

Cc: stable@kernel.org
Reported-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Tested-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
15 years agoKVM: Make EFER reads safe when EFER does not exist
Avi Kivity [Sun, 3 May 2009 15:50:55 +0000 (18:50 +0300)]
KVM: Make EFER reads safe when EFER does not exist

Some processors don't have EFER; don't oops if userspace wants us to
read EFER when we check NX.

Cc: stable@kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>
15 years agoKVM: Fix NX support reporting
Avi Kivity [Sun, 3 May 2009 13:34:21 +0000 (16:34 +0300)]
KVM: Fix NX support reporting

NX support is bit 20, not bit 1.

Signed-off-by: Avi Kivity <avi@redhat.com>
15 years agoKVM: SVM: Fix cross vendor migration issue with unusable bit
Andre Przywara [Tue, 28 Apr 2009 10:45:30 +0000 (12:45 +0200)]
KVM: SVM: Fix cross vendor migration issue with unusable bit

AMDs VMCB does not have an explicit unusable segment descriptor field,
so we emulate it by using "not present". This has to be setup before
the fixups, because this field is used there.

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
15 years agonilfs2: fix lock order reversal in nilfs_clean_segments ioctl
Ryusuke Konishi [Sun, 10 May 2009 13:41:43 +0000 (22:41 +0900)]
nilfs2: fix lock order reversal in nilfs_clean_segments ioctl

This is a companion patch to ("nilfs2: fix possible circular locking
for get information ioctls").

This corrects lock order reversal between mm->mmap_sem and
nilfs->ns_segctor_sem in nilfs_clean_segments() which was detected by
lockdep check:

 =======================================================
 [ INFO: possible circular locking dependency detected ]
 2.6.30-rc3-nilfs-00003-g360bdc1 #7
 -------------------------------------------------------
 mmap/5294 is trying to acquire lock:
  (&nilfs->ns_segctor_sem){++++.+}, at: [<d0d0e846>] nilfs_transaction_begin+0xb6/0x10c [nilfs2]

 but task is already holding lock:
  (&mm->mmap_sem){++++++}, at: [<c043700a>] do_page_fault+0x1d8/0x30a

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #1 (&mm->mmap_sem){++++++}:
        [<c01470a5>] __lock_acquire+0x1066/0x13b0
        [<c01474a9>] lock_acquire+0xba/0xdd
        [<c01836bc>] might_fault+0x68/0x88
        [<c023c61d>] copy_from_user+0x2a/0x111
        [<d0d120d0>] nilfs_ioctl_prepare_clean_segments+0x1d/0xf1 [nilfs2]
        [<d0d0e2aa>] nilfs_clean_segments+0x6d/0x1b9 [nilfs2]
        [<d0d11f68>] nilfs_ioctl+0x2ad/0x318 [nilfs2]
        [<c01a3be7>] vfs_ioctl+0x22/0x69
        [<c01a408e>] do_vfs_ioctl+0x460/0x499
        [<c01a4107>] sys_ioctl+0x40/0x5a
        [<c01031a4>] sysenter_do_call+0x12/0x38
        [<ffffffff>] 0xffffffff

 -> #0 (&nilfs->ns_segctor_sem){++++.+}:
        [<c0146e0b>] __lock_acquire+0xdcc/0x13b0
        [<c01474a9>] lock_acquire+0xba/0xdd
        [<c0433f1d>] down_read+0x2a/0x3e
        [<d0d0e846>] nilfs_transaction_begin+0xb6/0x10c [nilfs2]
        [<d0cfe0e5>] nilfs_page_mkwrite+0xe7/0x154 [nilfs2]
        [<c0183b0b>] __do_fault+0x165/0x376
        [<c01855cd>] handle_mm_fault+0x287/0x5d1
        [<c043712d>] do_page_fault+0x2fb/0x30a
        [<c0435462>] error_code+0x72/0x78
        [<ffffffff>] 0xffffffff

where nilfs_clean_segments() holds:

  nilfs->ns_segctor_sem -> copy_from_user()
                             --> page fault -> mm->mmap_sem

And, page fault path may hold:

  page fault -> mm->mmap_sem
         --> nilfs_page_mkwrite() -> nilfs->ns_segctor_sem

Even though nilfs_clean_segments() does not perform write access on
given user pages, it may cause deadlock because nilfs->ns_segctor_sem
is shared per device and mm->mmap_sem can be shared with other tasks.

To avoid this problem, this patch moves all calls of copy_from_user()
outside the nilfs->ns_segctor_sem lock in the ioctl.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
15 years agonilfs2: fix possible circular locking for get information ioctls
Ryusuke Konishi [Wed, 29 Apr 2009 17:21:00 +0000 (02:21 +0900)]
nilfs2: fix possible circular locking for get information ioctls

This is one of two patches which are to correct possible circular
locking between mm->mmap_sem and nilfs->ns_segctor_sem.

The problem was detected by lockdep check as follows:

 =======================================================
 [ INFO: possible circular locking dependency detected ]
 2.6.30-rc3-nilfs-00002-g3552613 #6
 -------------------------------------------------------
 mmap/5418 is trying to acquire lock:
 (&nilfs->ns_segctor_sem){++++.+}, at: [<d0d0e852>] nilfs_transaction_begin+0xb6/0x10c [nilfs2]

 but task is already holding lock:
 (&mm->mmap_sem){++++++}, at: [<c043700a>] do_page_fault+0x1d8/0x30a

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #1 (&mm->mmap_sem){++++++}:
 [<c01470a5>] __lock_acquire+0x1066/0x13b0
 [<c01474a9>] lock_acquire+0xba/0xdd
 [<c01836bc>] might_fault+0x68/0x88
 [<c023c730>] copy_to_user+0x2c/0xfc
 [<d0d11b4f>] nilfs_ioctl_wrap_copy+0x103/0x160 [nilfs2]
 [<d0d11fa9>] nilfs_ioctl+0x30a/0x3b0 [nilfs2]
 [<c01a3be7>] vfs_ioctl+0x22/0x69
 [<c01a408e>] do_vfs_ioctl+0x460/0x499
 [<c01a4107>] sys_ioctl+0x40/0x5a
 [<c01031a4>] sysenter_do_call+0x12/0x38
 [<ffffffff>] 0xffffffff

 -> #0 (&nilfs->ns_segctor_sem){++++.+}:
 [<c0146e0b>] __lock_acquire+0xdcc/0x13b0
 [<c01474a9>] lock_acquire+0xba/0xdd
 [<c0433f1d>] down_read+0x2a/0x3e
 [<d0d0e852>] nilfs_transaction_begin+0xb6/0x10c [nilfs2]
 [<d0cfe0e5>] nilfs_page_mkwrite+0xe7/0x154 [nilfs2]
 [<c0183b0b>] __do_fault+0x165/0x376
 [<c01855cd>] handle_mm_fault+0x287/0x5d1
 [<c043712d>] do_page_fault+0x2fb/0x30a
 [<c0435462>] error_code+0x72/0x78
 [<ffffffff>] 0xffffffff

 other info that might help us debug this:

 1 lock held by mmap/5418:
 #0:  (&mm->mmap_sem){++++++}, at: [<c043700a>] do_page_fault+0x1d8/0x30a

 stack backtrace:
 Pid: 5418, comm: mmap Not tainted 2.6.30-rc3-nilfs-00002-g3552613 #6
 Call Trace:
 [<c0432145>] ? printk+0xf/0x12
 [<c0145c48>] print_circular_bug_tail+0xaa/0xb5
 [<c0146e0b>] __lock_acquire+0xdcc/0x13b0
 [<d0d10149>] ? nilfs_sufile_get_stat+0x1e/0x105 [nilfs2]
 [<c013b59a>] ? up_read+0x16/0x2c
 [<d0d10225>] ? nilfs_sufile_get_stat+0xfa/0x105 [nilfs2]
 [<c01474a9>] lock_acquire+0xba/0xdd
 [<d0d0e852>] ? nilfs_transaction_begin+0xb6/0x10c [nilfs2]
 [<c0433f1d>] down_read+0x2a/0x3e
 [<d0d0e852>] ? nilfs_transaction_begin+0xb6/0x10c [nilfs2]
 [<d0d0e852>] nilfs_transaction_begin+0xb6/0x10c [nilfs2]
 [<d0cfe0e5>] nilfs_page_mkwrite+0xe7/0x154 [nilfs2]
 [<c0183b0b>] __do_fault+0x165/0x376
 [<c01855cd>] handle_mm_fault+0x287/0x5d1
 [<c043700a>] ? do_page_fault+0x1d8/0x30a
 [<c013b54f>] ? down_read_trylock+0x39/0x43
 [<c043712d>] do_page_fault+0x2fb/0x30a
 [<c0436e32>] ? do_page_fault+0x0/0x30a
 [<c0435462>] error_code+0x72/0x78
 [<c0436e32>] ? do_page_fault+0x0/0x30a

This makes the lock granularity of nilfs->ns_segctor_sem finer than
that of the mmap semaphore for ioctl commands except
nilfs_clean_segments().

The successive patch ("nilfs2: fix lock order reversal in
nilfs_clean_segments ioctl") is required to fully resolve the problem.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
Linus Torvalds [Sun, 10 May 2009 17:49:53 +0000 (10:49 -0700)]
Merge git://git./linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
  Staging: comedi: David doesn't want to get comedi patches
  Staging: rtl8187se: Fix compilation warnings and procfs directory leak
  Staging: rt2870: new device id
  Staging: w35und: unregister device from the ieee80211 stack upon ->disconnect()

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Sun, 10 May 2009 17:49:41 +0000 (10:49 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  usb-serial: ftdi_sio: fix reference counting of ftdi_private
  USB: unusual_devs: extend nokia 6288 bcd range
  USB: Gadget: fix UTF conversion in the usbstring library
  USB: Fix makefile so that CONFIG_WDM and CONFIG_TMC work.
  USB: ftdi_sio: add vendor/product id for the Marvell SheevaPlug
  USB: cxacru: Fix negative dB output

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
Linus Torvalds [Sun, 10 May 2009 17:49:31 +0000 (10:49 -0700)]
Merge git://git./linux/kernel/git/gregkh/driver-core-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  Revert driver core: move platform_data into platform_device
  Revert driver core: fix passing platform_data
  Remove old PRINTK_DEBUG config item
  Doc/sysfs-rules: Swap the order of the words so the sentence makes more sense
  Driver core: platform: fix kernel-doc warnings

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Sun, 10 May 2009 17:49:08 +0000 (10:49 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (22 commits)
  Fix the race between capifs remount and node creation
  Fix races around the access to ->s_options
  switch ufs directories to ufs_sync_file()
  Switch open_exec() and sys_uselib() to do_open_filp()
  Make open_exec() and sys_uselib() use may_open(), instead of duplicating its parts
  Reduce path_lookup() abuses
  Make checkpatch.pl shut up on fs/inode.c
  NULL noise in fs/super.c:kill_bdev_super()
  romfs: cleanup romfs_fs.h
  ROMFS: romfs_dev_read() error ignored
  fs: dcache fix LRU ordering
  ocfs2: Use nd_set_link().
  Fix deadlock in ipathfs ->get_sb()
  Fix a leak in failure exit in 9p ->get_sb()
  Convert obvious places to deactivate_locked_super()
  New helper: deactivate_locked_super()
  reiserfs: remove privroot hiding in lookup
  reiserfs: dont associate security.* with xattr files
  reiserfs: fixup xattr_root caching
  Always lookup priv_root on reiserfs mount and keep it
  ...

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes
Linus Torvalds [Sun, 10 May 2009 17:47:18 +0000 (10:47 -0700)]
Merge git://git./linux/kernel/git/steve/gfs2-2.6-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  GFS2: Fix glock ref counting bug

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Sun, 10 May 2009 17:47:07 +0000 (10:47 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Fix line-in on Mac Mini Core2 Duo
  ALSA: Release v1.0.20
  sound: via82xx: fix DXS volume range
  sound: serial-u16550: fix buffer overflow
  ASoC: Fix errors in WM8990

15 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Sun, 10 May 2009 17:46:58 +0000 (10:46 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
  V4L/DVB (11680): cafe_ccic: use = instead of == for setting a value at a var
  V4L/DVB (11679): cafe_ccic: fix sensor detection
  V4L/DVB (11675): ivtv/radio: fix V4L2_TUNER_MODE/V4L2_TUNER_SUB confusion
  V4L/DVB (11674): ivtv: fix incorrect bit tests
  V4L/DVB (11669): uvc: fix compile warning
  V4L/DVB (11668): ivtv: fix compiler warning.
  V4L/DVB (11664): cx23885: Frontend wasn't locking on HVR-1500
  V4L/DVB (11662): v4l2-ioctl: Clear buffer type specific trailing fields/padding
  V4L/DVB (11661): v4l2-ioctl: Check buffer types using g_fmt instead of try_fmt
  V4L/DVB (11660): zoran: fix bug when enumerating format -1
  V4L/DVB (11575): uvcvideo: fix uvc resume failed

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Sun, 10 May 2009 17:46:45 +0000 (10:46 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (26 commits)
  bonding: fix panic if initialization fails
  IXP4xx: complete Ethernet netdev setup before calling register_netdev().
  IXP4xx: use "ENODEV" instead of "ENOSYS" in module initialization.
  ipvs: Fix IPv4 FWMARK virtual services
  ipv4: Make INET_LRO a bool instead of tristate.
  net: remove stale reference to fastroute from Kconfig help text
  net: update skb_recycle_check() for hardware timestamping changes
  bnx2: Fix panic in bnx2_poll_work().
  net-sched: fix bfifo default limit
  igb: resolve panic on shutdown when SR-IOV is enabled
  wimax: oops: wimax_dev_add() is the only one that can initialize the state
  wimax: fix oops if netlink fails to add attribute
  Bluetooth: Move dev_set_name() to a context that can sleep
  netfilter: ctnetlink: fix wrong message type in user updates
  netfilter: xt_cluster: fix use of cluster match with 32 nodes
  netfilter: ip6t_ipv6header: fix match on packets ending with NEXTHDR_NONE
  netfilter: add missing linux/types.h include to xt_LED.h
  mac80211: pid, fix memory corruption
  mac80211: minstrel, fix memory corruption
  cfg80211: fix comment on regulatory hint processing
  ...

15 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Sun, 10 May 2009 10:06:59 +0000 (12:06 +0200)]
Merge branch 'fix/asoc' into for-linus

* fix/asoc:
  ASoC: Fix errors in WM8990

15 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Sun, 10 May 2009 10:06:55 +0000 (12:06 +0200)]
Merge branch 'fix/hda' into for-linus

* fix/hda:
  ALSA: hda - Fix line-in on Mac Mini Core2 Duo

15 years agoMerge branch 'topic/misc' into for-linus
Takashi Iwai [Sun, 10 May 2009 10:06:08 +0000 (12:06 +0200)]
Merge branch 'topic/misc' into for-linus

* topic/misc:
  ALSA: Release v1.0.20

15 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Sun, 10 May 2009 10:05:53 +0000 (12:05 +0200)]
Merge branch 'fix/misc' into for-linus

* fix/misc:
  sound: via82xx: fix DXS volume range
  sound: serial-u16550: fix buffer overflow

15 years agonilfs2: ensure to clear dirty state when deleting metadata file block
Ryusuke Konishi [Tue, 5 May 2009 12:52:06 +0000 (21:52 +0900)]
nilfs2: ensure to clear dirty state when deleting metadata file block

This would fix the following failure during GC:

 nilfs_cpfile_delete_checkpoints: cannot delete block
 NILFS: GC failed during preparation: cannot delete checkpoints: err=-2

The problem was caused by a break in state consistency between page
cache and btree; the above block was removed from the btree but the
page buffering the block was remaining in the page cache in dirty
state.

This resolves the inconsistency by ensuring to clear dirty state of
the page buffering the deleted block.

Reported-by: David Arendt <admin@prnet.org>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
15 years agoV4L/DVB (11680): cafe_ccic: use = instead of == for setting a value at a var
Mauro Carvalho Chehab [Tue, 5 May 2009 11:08:38 +0000 (08:08 -0300)]
V4L/DVB (11680): cafe_ccic: use = instead of == for setting a value at a var

/home/v4l/master/v4l/cafe_ccic.c: In function 'cafe_cam_init':
/home/v4l/master/v4l/cafe_ccic.c:778: warning: statement with no effect

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: saeed bishara <saeed.bishara@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (11679): cafe_ccic: fix sensor detection
Hans Verkuil [Sun, 3 May 2009 07:58:04 +0000 (04:58 -0300)]
V4L/DVB (11679): cafe_ccic: fix sensor detection

Due to an uninitialized chip.ident field the chip identification failed.

Thanks-to: Saeed Bishara <saeed.bishara@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (11675): ivtv/radio: fix V4L2_TUNER_MODE/V4L2_TUNER_SUB confusion
Hans Verkuil [Sat, 2 May 2009 14:52:35 +0000 (11:52 -0300)]
V4L/DVB (11675): ivtv/radio: fix V4L2_TUNER_MODE/V4L2_TUNER_SUB confusion

V4L2_TUNER_MODE_ was used in a few places where V4L2_TUNER_SUB_ should have
been used.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (11674): ivtv: fix incorrect bit tests
Hans Verkuil [Sat, 2 May 2009 14:10:23 +0000 (11:10 -0300)]
V4L/DVB (11674): ivtv: fix incorrect bit tests

Found the coccinelle tool.

Thanks-to: Julia Lawall <julia@diku.dk>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (11669): uvc: fix compile warning
Hans Verkuil [Sat, 2 May 2009 11:12:36 +0000 (08:12 -0300)]
V4L/DVB (11669): uvc: fix compile warning

The 2.6.30 kernel generates this warning:

uvc_driver.c:1729: warning: 'ret' may be used uninitialized in this function

I guess some new warning flag must have been turned on since this warning
didn't appear with older kernels (gcc version 4.3.1). It's also a bogus
warning, but since this code didn't comply to the coding standard anyway
I've modified it to 1) remove the warning and 2) conform to the coding
standard.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (11668): ivtv: fix compiler warning.
Hans Verkuil [Sat, 2 May 2009 10:56:46 +0000 (07:56 -0300)]
V4L/DVB (11668): ivtv: fix compiler warning.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (11664): cx23885: Frontend wasn't locking on HVR-1500
Steven Toth [Tue, 21 Apr 2009 01:42:00 +0000 (22:42 -0300)]
V4L/DVB (11664): cx23885: Frontend wasn't locking on HVR-1500

The boards control struct wasn't updated when (presumably) all of the
other drivers migrated from using scode_table to specifying the demod.

Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (11662): v4l2-ioctl: Clear buffer type specific trailing fields/padding
Trent Piepho [Fri, 1 May 2009 00:03:34 +0000 (21:03 -0300)]
V4L/DVB (11662): v4l2-ioctl: Clear buffer type specific trailing fields/padding

Some ioctls have structs that are a different size depending on what type
of buffer is being used.  If the buffer type leaves a field unused or has
padding space at the end, this space should be zeroed out.

The problems with S_FMT and REQBUFS were original identified and patched by
Marton Nemeth <nm127@freemail.hu>.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (11661): v4l2-ioctl: Check buffer types using g_fmt instead of try_fmt
Trent Piepho [Fri, 1 May 2009 00:03:34 +0000 (21:03 -0300)]
V4L/DVB (11661): v4l2-ioctl: Check buffer types using g_fmt instead of try_fmt

For a number of different ioctls, the v4l2-ioctl code checks that the
passed buffer type is supported by the driver.  It did this by checking
that the driver defined a method for the try_fmt handler for that buffer
type.  However, try_fmt is optional and a driver might not provide it even
though it does support that type.  So use g_fmt instead, since that isn't
optional.

This should fix a problem with VBI capture with saa7146.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (11660): zoran: fix bug when enumerating format -1
Trent Piepho [Fri, 1 May 2009 00:03:34 +0000 (21:03 -0300)]
V4L/DVB (11660): zoran: fix bug when enumerating format -1

If someone requests a format at fmt->index == (unsigned)-1 and the first
format in the array doesn't have the requested type then num will still be
-1 when it's compared to fmt->index and there will appear to be a match.

Restructure the loop so this can't happen.  It's simpler this way too.  The
unnecessary check for (unsigned)fmt->index < 0 found by Roel Kluin
<roel.kluin@gmail.com> is removed this way too.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoV4L/DVB (11575): uvcvideo: fix uvc resume failed
Ming Lei [Fri, 17 Apr 2009 23:50:30 +0000 (20:50 -0300)]
V4L/DVB (11575): uvcvideo: fix uvc resume failed

Now urb buffers is not freed before suspend, so uvc_alloc_urb_buffers should
return packet counts allocated originally during uvc resume, instead of zero.

This version uses round down to return packet counts on Linus' suggestions,
or else may lead to buffer destructed if packet size is changed before
calling uvc_alloc_urb_buffers() in this kind of case.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
15 years agoMerge branch 'net-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6
David S. Miller [Sat, 9 May 2009 20:20:46 +0000 (13:20 -0700)]
Merge branch 'net-fixes' of git://git./linux/kernel/git/chris/linux-2.6

15 years agobonding: fix panic if initialization fails
Florian Westphal [Fri, 8 May 2009 11:49:11 +0000 (11:49 +0000)]
bonding: fix panic if initialization fails

If module initialisation failed (e.g. because the bonding sysfs entry
cannot be created), kernel panics:
 IP: [<ffffffff8024910a>] destroy_workqueue+0x2d/0x146
Call Trace:
 [<ffffffff808268c4>] bond_destructor+0x28/0x78
 [<ffffffff80b64471>] netdev_run_todo+0x231/0x25a
 [<ffffffff80b6dbcd>] rtnl_unlock+0x9/0xb
 [<ffffffff81567907>] bonding_init+0x83e/0x84a

Remove the calls to bond_work_cancel_all() and destroy_workqueue();
both are also called/scheduled via bond_free_all().

bond_destroy_sysfs is unecessary because the sysfs entry has
not been created in the error case.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoFix the race between capifs remount and node creation
Al Viro [Fri, 8 May 2009 20:23:30 +0000 (16:23 -0400)]
Fix the race between capifs remount and node creation

we don't want to deal with half-updated config

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
15 years agoFix races around the access to ->s_options
Al Viro [Fri, 8 May 2009 20:05:57 +0000 (16:05 -0400)]
Fix races around the access to ->s_options

Put generic_show_options read access to s_options under rcu_read_lock,
split save_mount_options() into "we are setting it the first time"
(uses in foo_fill_super()) and "we are relacing and freeing the old one",
synchronize_rcu() before kfree() in the latter.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
15 years agoswitch ufs directories to ufs_sync_file()
Al Viro [Wed, 6 May 2009 23:56:21 +0000 (19:56 -0400)]
switch ufs directories to ufs_sync_file()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
15 years agoSwitch open_exec() and sys_uselib() to do_open_filp()
Al Viro [Mon, 6 Apr 2009 15:16:22 +0000 (11:16 -0400)]
Switch open_exec() and sys_uselib() to do_open_filp()

... and make path_lookup_open() static

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>