firefly-linux-kernel-4.4.55.git
15 years ago[ARM] 5412/1: XSCALE: add ice dcc support
Jean-Christop PLAGNIOL-VILLARD [Wed, 25 Feb 2009 03:20:40 +0000 (04:20 +0100)]
[ARM] 5412/1: XSCALE: add ice dcc support

SCALE: add ice dcc support

Tested on the ixp425 with the ice PEEDI

Ack-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years agoMerge branch 'dma' into devel
Russell King [Sat, 21 Feb 2009 21:42:50 +0000 (21:42 +0000)]
Merge branch 'dma' into devel

Conflicts:

arch/arm/plat-mxc/dma-mx1-mx2.c

15 years ago[ARM] dma: RiscPC: don't modify DMA SG entries
Russell King [Sat, 21 Feb 2009 21:38:56 +0000 (21:38 +0000)]
[ARM] dma: RiscPC: don't modify DMA SG entries

We should not be modifying the scatterlist passed to us from the
driver code; doing so breaks assumptions made by the DMA API code,
and could cause problems if the driver retries a transfer using an
old scatterlist.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] dma: move IOMD and floppy DMA structures to RiscPC DMA code
Russell King [Sat, 21 Feb 2009 21:36:22 +0000 (21:36 +0000)]
[ARM] dma: move IOMD and floppy DMA structures to RiscPC DMA code

There's no point these being in a generic include file when they're
only used in arch/arm/mach-rpc/dma.c.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5399/1: [AT91] Configure MCLK and SSC for AT91SAMG20-EK
Mark Brown [Mon, 16 Feb 2009 19:39:19 +0000 (20:39 +0100)]
[ARM] 5399/1: [AT91] Configure MCLK and SSC for AT91SAMG20-EK

The AT91SAM20-EK has a WM8731 attached to it with MCLK supplied from
PCLK0 and the digital audio interface supplied by SSC0.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5408/1: SA1100: update defconfigs after h3800 removal
Dmitry Artamonow [Fri, 20 Feb 2009 09:18:08 +0000 (10:18 +0100)]
[ARM] 5408/1: SA1100: update defconfigs after h3800 removal

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5407/1: SA1100: drop broken for ages iPAQ h3800 support
Dmitry Artamonow [Fri, 20 Feb 2009 09:16:01 +0000 (10:16 +0100)]
[ARM] 5407/1: SA1100: drop broken for ages iPAQ h3800 support

Code has never been in buildable state since initial
merge.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5406/1: ep93xx: remove unneeded header in ohci-ep93xx.c
Hartley Sweeten [Thu, 19 Feb 2009 16:13:45 +0000 (17:13 +0100)]
[ARM] 5406/1: ep93xx: remove unneeded header in ohci-ep93xx.c

Remove the unneeded #include <mach/hardware.h>

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5397/1: RealView: Add support for the ISP1761 USB chip
Catalin Marinas [Thu, 12 Feb 2009 15:00:21 +0000 (16:00 +0100)]
[ARM] 5397/1: RealView: Add support for the ISP1761 USB chip

This patch adds the platform_device and resource structures for the USB
ISP1761 chip, usable with the in-kernel isp1760 driver.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5396/1: RealView: Use PATA_PLATFORM to access the CompactFlash
Catalin Marinas [Thu, 12 Feb 2009 14:59:21 +0000 (15:59 +0100)]
[ARM] 5396/1: RealView: Use PATA_PLATFORM to access the CompactFlash

This driver adds the platform_device definitions to allow the use of
CompactFlash on the RealView PB11MPCore and PB-A8 platforms. Note that
the CompactFlash controller is expected to be initialised by the Boot
Monitor and support the True IDE mode.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5395/1: RealView: Add support for the DS1338 RTC chip
Catalin Marinas [Thu, 12 Feb 2009 14:58:20 +0000 (15:58 +0100)]
[ARM] 5395/1: RealView: Add support for the DS1338 RTC chip

This chip is on the I2C bus on the RealView and Versatile boards. The
patch adds the i2c_board_info definition for this device and registers
it with the I2C subsystem.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5394/1: Add static bus numbering support to i2c-versatile
Catalin Marinas [Thu, 12 Feb 2009 14:57:20 +0000 (15:57 +0100)]
[ARM] 5394/1: Add static bus numbering support to i2c-versatile

If dev->id is not -1, the platform code may use static bus numbering
rather than dynamic. The patch also changes the i2c_versatile_init to a
subsys_initcall rather than module_init to make sure it is initialised
before the I2C devices initialisation.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5363/1: Shark cleanup and new defconfig
Alexander Schulz [Thu, 8 Jan 2009 17:05:58 +0000 (18:05 +0100)]
[ARM] 5363/1: Shark cleanup and new defconfig

This includes a new defconfig for the Shark and some changes to
the mach-shark directory to avoid namespace pollution and to
switch the rtc to the newer driver.

Signed-off-by: Alexander Schulz <alex@shark-linux.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5377/1: S3C2410-Framebuffer: Fix resume path in S3C2410 framebuffer driver.
Daniel Silverstone [Tue, 10 Feb 2009 12:40:38 +0000 (13:40 +0100)]
[ARM] 5377/1: S3C2410-Framebuffer: Fix resume path in S3C2410 framebuffer driver.

Ensure that the LCD engine is correctly re-initialised
and the correct parameters passed ot s3c2410fb_init_registers.

Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5376/1: S3C24XX: Fix sparse errors in platform uncompress.h
Daniel Silverstone [Tue, 10 Feb 2009 12:39:52 +0000 (13:39 +0100)]
[ARM] 5376/1: S3C24XX: Fix sparse errors in platform uncompress.h

Ensure __iomem attribute is __force 'd off in the minimal
__raw_writel() implementation.

Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5386/2: unwind: Add Makefile and Kconfig entries for ARM stack unwinding
Catalin Marinas [Thu, 12 Feb 2009 12:56:34 +0000 (13:56 +0100)]
[ARM] 5386/2: unwind: Add Makefile and Kconfig entries for ARM stack unwinding

This patch also makes the frame pointer default to y only if
!ARM_UNWIND. LOCKDEP no longer selects FRAME_POINTER if ARM_UNWIND is
enabled.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5385/2: unwind: Add unwinding information to exception entry points
Catalin Marinas [Mon, 16 Feb 2009 10:42:09 +0000 (11:42 +0100)]
[ARM] 5385/2: unwind: Add unwinding information to exception entry points

This is needed to allow or stop the unwinding at certain points in the
kernel like exception entries.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5384/1: unwind: Add stack unwinding support for loadable modules
Catalin Marinas [Wed, 11 Feb 2009 12:09:54 +0000 (13:09 +0100)]
[ARM] 5384/1: unwind: Add stack unwinding support for loadable modules

This patch adds ELF section parsing for the unwinding tables in loadable
modules together with the PREL31 relocation symbol resolving.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5383/2: unwind: Add core support for ARM stack unwinding
Catalin Marinas [Mon, 16 Feb 2009 10:41:36 +0000 (11:41 +0100)]
[ARM] 5383/2: unwind: Add core support for ARM stack unwinding

This patch adds the main functionality for parsing the stack unwinding
information generated by the ARM EABI toolchains. The unwinding
information consists of an index with a pair of words per function and a
table with unwinding instructions. For more information, see "Exception
Handling ABI for the ARM Architecture" at:

http://infocenter.arm.com/help/topic/com.arm.doc.subset.swdev.abi/index.html

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5382/1: unwind: Reorganise the stacktrace support
Catalin Marinas [Wed, 11 Feb 2009 12:07:53 +0000 (13:07 +0100)]
[ARM] 5382/1: unwind: Reorganise the stacktrace support

This patch changes the walk_stacktrace and its callers for easier
integration of stack unwinding. The arch/arm/kernel/stacktrace.h file is
also moved to arch/arm/include/asm/stacktrace.h.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5381/1: unwind: Reorganise the traps.c code
Catalin Marinas [Wed, 11 Feb 2009 12:06:53 +0000 (13:06 +0100)]
[ARM] 5381/1: unwind: Reorganise the traps.c code

This patch moves code around in the arch/arm/kernel/traps.c file for
easier integration of the stack unwinding support.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5393/1: Add W90P910 EVB NOR flash driver
wanzongshun [Thu, 12 Feb 2009 01:57:21 +0000 (02:57 +0100)]
[ARM] 5393/1: Add W90P910 EVB NOR flash driver

Add W90P910 Evaluate Board NOR flash driver support,
The EV Board default support W19B320ABT7H of Winbond inc.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5392/1: Delete redundant macros for w90p910
wanzongshun [Thu, 12 Feb 2009 01:56:04 +0000 (02:56 +0100)]
[ARM] 5392/1: Delete redundant macros for w90p910

Delete the macros W90X900_RES and W90X900_DEVICE
I thought it will be better to define the structures
for each device directly.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5389/1: Make sure the pmd entries are visible by the secondary CPU
Catalin Marinas [Wed, 11 Feb 2009 12:14:57 +0000 (13:14 +0100)]
[ARM] 5389/1: Make sure the pmd entries are visible by the secondary CPU

The __cpu_up() function in arch/arm/kernel/smp.c sets the pmd entries
without flushing or cleaning them.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5388/1: Add hwcap bits for VFPv3 and VFPv3D16
Catalin Marinas [Wed, 11 Feb 2009 12:13:56 +0000 (13:13 +0100)]
[ARM] 5388/1: Add hwcap bits for VFPv3 and VFPv3D16

The VFPv3D16 is a VFPv3 CPU configuration where only 16 double registers
are present, as the VFPv2 configuration. This patch adds the
corresponding hwcap bits so that applications or debuggers have more
information about the supported features.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5387/1: Add ptrace VFP support on ARM
Catalin Marinas [Wed, 11 Feb 2009 12:12:56 +0000 (13:12 +0100)]
[ARM] 5387/1: Add ptrace VFP support on ARM

This patch adds ptrace support for setting and getting the VFP registers
using PTRACE_SETVFPREGS and PTRACE_GETVFPREGS. The user_vfp structure
defined in asm/user.h contains 32 double registers (to cover VFPv3 and
Neon hardware) and the FPSCR register.

Cc: Paul Brook <paul@codesourcery.com>
Cc: Daniel Jacobowitz <dan@codesourcery.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5373/2: Add gpiolib support to AT91
Ryan Mallon [Tue, 10 Feb 2009 20:02:08 +0000 (21:02 +0100)]
[ARM] 5373/2: Add gpiolib support to AT91

Add support for gpiolib, including debugfs output, to the AT91 family.
The at91_get/set_gpio_value calls still exist since they are used by the
atmel serial driver.

Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5355/1: Adding support for the HTC Himalaya and its framebuffer
Zbynek Michl [Thu, 1 Jan 2009 23:26:13 +0000 (00:26 +0100)]
[ARM] 5355/1: Adding support for the HTC Himalaya and its framebuffer

Patch adds support for the HTC Himalaya device. It includes hardware definitions and w100fb support.

Signed-off-by: Zbynek Michl <Zbynek.Michl@seznam.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5354/1: mach-pxa: add AM300 platform driver v3
Jaya Kumar [Thu, 1 Jan 2009 16:51:01 +0000 (17:51 +0100)]
[ARM] 5354/1: mach-pxa: add AM300 platform driver v3

This patch adds support for the AM300 platform driver which uses the
E-Ink broadsheetfb display driver.

Cc: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5353/1: fbdev: add E-Ink Broadsheet controller support v3
Jaya Kumar [Thu, 1 Jan 2009 16:49:19 +0000 (17:49 +0100)]
[ARM] 5353/1: fbdev: add E-Ink Broadsheet controller support v3

This patch adds support for the E-Ink Broadsheet display controller.

Cc: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5375/1: PATCH - update jornada720.c to reflect driver additions
Kristoffer Ericson [Wed, 4 Feb 2009 15:47:38 +0000 (16:47 +0100)]
[ARM] 5375/1: PATCH - update jornada720.c to reflect driver additions

This patch updates the list of devices activated at init
to also include the keyboard and touchscreen structs.
We also remove a non-needed #ifdef.

Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5374/1: The w90p910 uart0 driver patch
wanzongshun [Wed, 4 Feb 2009 04:01:38 +0000 (05:01 +0100)]
[ARM] 5374/1: The w90p910 uart0 driver patch

Add W90P910 UART0 support,the W90P910 UART0 is 8250 series.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5372/1: ACS5K: Core board support for the ACS-5000
Daniel Silverstone [Thu, 29 Jan 2009 10:33:10 +0000 (11:33 +0100)]
[ARM] 5372/1: ACS5K: Core board support for the ACS-5000

This patch provides the core board support for the Brivo Systems
LLC ACS-5000 master board for automated door/card-reader etc
management.

Signed-off-by: Daniel Silverstone <dsilvers@simtec.co.uk>
Signed-off-by: Vincent Sanders <vince@simtec.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] 5371/1: ep93xx: add i2c device to edb9307a
Hartley Sweeten [Mon, 26 Jan 2009 16:24:51 +0000 (17:24 +0100)]
[ARM] 5371/1: ep93xx: add i2c device to edb9307a

Add the on-board rtc i2c device to the edb9307a platform init.

The EP93xx based EDB9307A dev board has an on-board ISL1208 RTC
connected to the I2C bus.  Now that the core code supports the
I2C bus, this patch will add support for the device.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years agoMerge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa...
Russell King [Sat, 7 Feb 2009 21:43:28 +0000 (21:43 +0000)]
Merge branch 'devel' of git://git./linux/kernel/git/ycmiao/pxa-linux-2.6 into devel

Conflicts:

arch/arm/configs/magician_defconfig

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
Linus Torvalds [Sat, 7 Feb 2009 02:37:22 +0000 (18:37 -0800)]
Merge git://git./linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (37 commits)
  Btrfs: Make sure dir is non-null before doing S_ISGID checks
  Btrfs: Fix memory leak in cache_drop_leaf_ref
  Btrfs: don't return congestion in write_cache_pages as often
  Btrfs: Only prep for btree deletion balances when nodes are mostly empty
  Btrfs: fix btrfs_unlock_up_safe to walk the entire path
  Btrfs: change btrfs_del_leaf to drop locks earlier
  Btrfs: Change btrfs_truncate_inode_items to stop when it hits the inode
  Btrfs: Don't try to compress pages past i_size
  Btrfs: join the transaction in __btrfs_setxattr
  Btrfs: Handle SGID bit when creating inodes
  Btrfs: Make btrfs_drop_snapshot work in larger and more efficient chunks
  Btrfs: Change btree locking to use explicit blocking points
  Btrfs: hash_lock is no longer needed
  Btrfs: disable leak debugging checks in extent_io.c
  Btrfs: sort references by byte number during btrfs_inc_ref
  Btrfs: async threads should try harder to find work
  Btrfs: selinux support
  Btrfs: make btrfs acls selectable
  Btrfs: Catch missed bios in the async bio submission thread
  Btrfs: fix readdir on 32 bit machines
  ...

15 years agoeCryptfs: Regression in unencrypted filename symlinks
Tyler Hicks [Sat, 7 Feb 2009 00:06:51 +0000 (18:06 -0600)]
eCryptfs: Regression in unencrypted filename symlinks

The addition of filename encryption caused a regression in unencrypted
filename symlink support.  ecryptfs_copy_filename() is used when dealing
with unencrypted filenames and it reported that the new, copied filename
was a character longer than it should have been.

This caused the return value of readlink() to count the NULL byte of the
symlink target.  Most applications don't care about the extra NULL byte,
but a version control system (bzr) helped in discovering the bug.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'x86/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux...
Linus Torvalds [Sat, 7 Feb 2009 02:36:02 +0000 (18:36 -0800)]
Merge branch 'x86/fixes' of git://git./linux/kernel/git/frob/linux-2.6-roland

* 'x86/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland:
  x86-64: fix int $0x80 -ENOSYS return

15 years agox86-64: fix int $0x80 -ENOSYS return
Roland McGrath [Sat, 7 Feb 2009 02:15:18 +0000 (18:15 -0800)]
x86-64: fix int $0x80 -ENOSYS return

One of my past fixes to this code introduced a different new bug.
When using 32-bit "int $0x80" entry for a bogus syscall number,
the return value is not correctly set to -ENOSYS.  This only happens
when neither syscall-audit nor syscall tracing is enabled (i.e., never
seen if auditd ever started).  Test program:

/* gcc -o int80-badsys -m32 -g int80-badsys.c
   Run on x86-64 kernel.
   Note to reproduce the bug you need auditd never to have started.  */

#include <errno.h>
#include <stdio.h>

int
main (void)
{
  long res;
  asm ("int $0x80" : "=a" (res) : "0" (99999));
  printf ("bad syscall returns %ld\n", res);
  return res != -ENOSYS;
}

The fix makes the int $0x80 path match the sysenter and syscall paths.

Reported-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Roland McGrath <roland@redhat.com>
15 years agoMerge branch 'to-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux...
Linus Torvalds [Sat, 7 Feb 2009 02:10:04 +0000 (18:10 -0800)]
Merge branch 'to-linus' of git://git./linux/kernel/git/frob/linux-2.6-roland

* 'to-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland:
  elf core dump: fix get_user use

15 years agoelf core dump: fix get_user use
Roland McGrath [Sat, 7 Feb 2009 01:34:07 +0000 (17:34 -0800)]
elf core dump: fix get_user use

The elf_core_dump() code does its work with set_fs(KERNEL_DS) in force,
so vma_dump_size() needs to switch back with set_fs(USER_DS) to safely
use get_user() for a normal user-space address.

Checking for VM_READ optimizes out the case where get_user() would fail
anyway.  The vm_file check here was already superfluous given the control
flow earlier in the function, so that is a cleanup/optimization unrelated
to other changes but an obvious and trivial one.

Reported-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Roland McGrath <roland@redhat.com>
15 years agovfs: Don't call attach_nobh_buffers() with an empty list
Dave Kleikamp [Fri, 6 Feb 2009 20:59:26 +0000 (14:59 -0600)]
vfs: Don't call attach_nobh_buffers() with an empty list

This is a modification of a patch by Bill Pemberton <wfp5p@virginia.edu>

nobh_write_end() could call attach_nobh_buffers() with head == NULL.
This would result in a trap when attach_nobh_buffers() attempted to
access bh->b_this_page.

This can be illustrated by running the writev01 testcase from LTP on jfs.

This error was introduced by commit 5b41e74a "vfs: fix data leak in
nobh_write_end()".  That patch did not take into account that if
PageMappedToDisk() is true upon entry to nobh_write_begin(), then no
buffers will be allocated for the page.  In that case, we won't have to
worry about a failed write leaving unitialized data in the page.

Of course, head != NULL implies !page_has_buffers(page), so no need to
test both.

Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Dmitri Monakhov <dmonakhov@openvz.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 6 Feb 2009 19:14:23 +0000 (11:14 -0800)]
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 - Add missing COEF initialization for ALC887
  ALSA: hda - Add missing initialization for ALC272
  sound: usb-audio: handle wMaxPacketSize for FIXED_ENDPOINT devices
  ALSA: hda - Fix misc workqueue issues
  ALSA: hda - Add quirk for FSC Amilo Xi2550

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
Linus Torvalds [Fri, 6 Feb 2009 16:48:16 +0000 (08:48 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  ieee1394: dv1394: move deprecation message from module init to file open
  firewire: core: Remove card from list of cards when enable fails

15 years agoAdd Sascha Hauer to .mailmap
Uwe Kleine-König [Fri, 6 Feb 2009 13:53:18 +0000 (14:53 +0100)]
Add Sascha Hauer to .mailmap

This fixes the shortlog attribution e.g. for 106757b38fff

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoadd another mailmap entry for Uwe Kleine-König
Uwe Kleine-König [Fri, 6 Feb 2009 13:53:19 +0000 (14:53 +0100)]
add another mailmap entry for Uwe Kleine-König

I created commit 7971db5a4b4176ad5df590fce07a962c643a2740 on a machine
where I forgot to set user.name and user.email before.  The default
values were not optimal.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agofork.c: fix NULL pointer dereference when nr_threads == threads-max
Li Zefan [Fri, 6 Feb 2009 08:17:19 +0000 (08:17 +0000)]
fork.c: fix NULL pointer dereference when nr_threads == threads-max

I happened to forked lots of processes, and hit NULL pointer dereference.
It is because in copy_process() after checking max_threads, 0 is returned
but not -EAGAIN.

The bug is introduced by "CRED: Detach the credentials from task_struct"
(commit f1752eec6145c97163dbce62d17cf5d928e28a27).

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoBtrfs: Make sure dir is non-null before doing S_ISGID checks
Chris Mason [Fri, 6 Feb 2009 16:35:57 +0000 (11:35 -0500)]
Btrfs: Make sure dir is non-null before doing S_ISGID checks

The S_ISGID check in btrfs_new_inode caused an oops during subvol creation
because sometimes the dir is null.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Fri, 6 Feb 2009 15:41:10 +0000 (07:41 -0800)]
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md: Ensure an md array never has too many devices.
  md: Fix a bug in linear.c causing which_dev() to return the wrong device.
  md: Allow read error in a single drive raid1 to be passed up.

15 years agoieee1394: dv1394: move deprecation message from module init to file open
Stefan Richter [Tue, 3 Feb 2009 16:54:31 +0000 (17:54 +0100)]
ieee1394: dv1394: move deprecation message from module init to file open

On many Linux installations, the dv1394 driver will be auto-loaded
whenever an AV/C device (e.g. camcorder or audio device) is plugged in.
An irritating message would then appear in the kernel log.

Defer this message to until a dv1394 character device file is actually
used by a program.  Also include the program name in the message and
update the message slightly.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
15 years agoMerge branch 'fix/usb-audio' into for-linus
Takashi Iwai [Fri, 6 Feb 2009 13:25:13 +0000 (14:25 +0100)]
Merge branch 'fix/usb-audio' into for-linus

15 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Fri, 6 Feb 2009 13:25:04 +0000 (14:25 +0100)]
Merge branch 'fix/hda' into for-linus

15 years agoALSA: hda - Add missing COEF initialization for ALC887
Takashi Iwai [Fri, 6 Feb 2009 11:46:59 +0000 (12:46 +0100)]
ALSA: hda - Add missing COEF initialization for ALC887

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: hda - Add missing initialization for ALC272
Takashi Iwai [Fri, 6 Feb 2009 11:45:52 +0000 (12:45 +0100)]
ALSA: hda - Add missing initialization for ALC272

ALC272 needs EAPD for speaker outputs as well as other similar ALC
codecs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agosound: usb-audio: handle wMaxPacketSize for FIXED_ENDPOINT devices
Clemens Ladisch [Fri, 6 Feb 2009 07:13:07 +0000 (08:13 +0100)]
sound: usb-audio: handle wMaxPacketSize for FIXED_ENDPOINT devices

For audio devices that do not have proper audio descriptors (e.g.,
Edirol UA-20), we use hardcoded parameters from our quirks list.
However, we must still read the maximum packet size from the standard
endpoint descriptor; otherwise, we might use packets that are too big
and therefore rejected by the USB core.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agomd: Ensure an md array never has too many devices.
NeilBrown [Fri, 6 Feb 2009 07:02:46 +0000 (18:02 +1100)]
md: Ensure an md array never has too many devices.

Each different metadata format supported by md supports a
different maximum number of devices.
We really should be enforcing this maximum in the kernel, but
we aren't quite doing that properly.

We currently only enforce it at the 'hot_add' point, which is an
older interface which is not used by current userspace.

We need to also enforce it at 'add_new_disk' time for active arrays
and at 'do_md_run' time when starting a new array.

So move the test from 'hot_add' into 'bind_rdev_to_array' which is
called from both 'hot_add' and 'add_new_disk, and add a new
test in 'analyse_sbs' which is called from 'do_md_run'.

This bug (or missing feature) has been around "forever" and so
the patch is suitable for any -stable that is currently maintained.

Cc: stable@kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
15 years agomd: Fix a bug in linear.c causing which_dev() to return the wrong device.
Andre Noll [Fri, 6 Feb 2009 04:10:52 +0000 (15:10 +1100)]
md: Fix a bug in linear.c causing which_dev() to return the wrong device.

ab5bd5cbc8d4b868378d062eed3d4240930fbb86 introduced the following
bug in linear software raid for large arrays on 32 bit machines:

which_dev() computes the device holding a given sector by shifting
down the sector number to a 32 bit range, dividing by the array
spacing and looking up the resulting index in the hash table of
the array.

Because the computed index might be slightly too small, a loop at
the end of which_dev() increases the index until the given sector
actually falls into the range of the device associated with that index.

The changes of the above mentioned commit caused this loop to check
whether the _index_ rather than the sector number is small enough,
effectively bypassing the loop and thus possibly returning the wrong
device.

As reported by Simon Kirby, this leads to errors such as

linear_make_request: Sector 2340486136 out of bounds on dev sdi: 156301312 sectors, offset 2109870464

Fix this bug by introducing a local variable for the index so that
the variable containing the passed sector is left unchanged.

Cc: stable@kernel.org
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
15 years agomd: Allow read error in a single drive raid1 to be passed up.
NeilBrown [Fri, 6 Feb 2009 04:06:47 +0000 (15:06 +1100)]
md: Allow read error in a single drive raid1 to be passed up.

If a raid1 only has a single working device and gets a read error,
we choose to simply return that error up to the filesystem (or whatever)
rather than failing the whole array.

However the codes doesn't quite do that.  We attempt a readbalance
which allocates the same drive, so we retry the read - indefinitely.

Instead:  If read_balance in the error case chooses the same drive that just
failed, treat it as a failure and don't retry.

Signed-off-by: NeilBrown <neilb@suse.de>
15 years agoprevent kprobes from catching spurious page faults
Masami Hiramatsu [Thu, 5 Feb 2009 22:12:39 +0000 (17:12 -0500)]
prevent kprobes from catching spurious page faults

Prevent kprobes from catching spurious faults which will cause infinite
recursive page-fault and memory corruption by stack overflow.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: <stable@kernel.org> [2.6.28.x]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agobraino in sg_ioctl_trans()
Al Viro [Fri, 6 Feb 2009 00:32:27 +0000 (00:32 +0000)]
braino in sg_ioctl_trans()

... and yes, gcc is insane enough to eat that without complaint.
We probably want sparse to scream on those...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfashe...
Linus Torvalds [Fri, 6 Feb 2009 00:12:38 +0000 (16:12 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/mfasheh/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
  Revert "configfs: Silence lockdep on mkdir(), rmdir() and configfs_depend_item()"

15 years agoMerge branch 'sh/for-2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...
Linus Torvalds [Fri, 6 Feb 2009 00:11:54 +0000 (16:11 -0800)]
Merge branch 'sh/for-2.6.29' of git://git./linux/kernel/git/lethal/sh-2.6

* 'sh/for-2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Fix up T-bit error handling in SH-4A mutex fastpath.
  sh: Fix up spurious syscall restarting.
  sh: fcnvds fix with denormalized numbers on SH-4 FPU.
  sh: Only reserve memory under CONFIG_ZERO_PAGE_OFFSET when it != 0.
  sh: Handle calling csum_partial with misaligned data
  sh: ap325rxa: Enable ov772x in defconfig.
  sh: ap325rxa: Add ov772x support.
  sh: ap325rxa: control camera power toggling.
  sh: mach-migor: Enable ov772x and tw9910 in defconfig.

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Fri, 6 Feb 2009 00:11:32 +0000 (16:11 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  Revert "tcp: Always set urgent pointer if it's beyond snd_nxt"
  ipv6: Copy cork options in ip6_append_data
  udp: Fix UDP short packet false positive
  gianfar: Fix potential soft reset race
  gianfar: Fix BD_LENGTH_MASK definition
  cxgb3: Fix lro switch
  iwlwifi: save PCI state before suspend, restore after resume
  iwlwifi: clean key table in iwl_clear_stations_table

15 years agoRevert "tcp: Always set urgent pointer if it's beyond snd_nxt"
David S. Miller [Thu, 5 Feb 2009 23:38:31 +0000 (15:38 -0800)]
Revert "tcp: Always set urgent pointer if it's beyond snd_nxt"

This reverts commit 64ff3b938ec6782e6585a83d5459b98b0c3f6eb8.

Jeff Chua reports that it breaks rlogin for him.

Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoipv6: Copy cork options in ip6_append_data
Herbert Xu [Thu, 5 Feb 2009 23:15:50 +0000 (15:15 -0800)]
ipv6: Copy cork options in ip6_append_data

As the options passed to ip6_append_data may be ephemeral, we need
to duplicate it for corking.  This patch applies the simplest fix
which is to memdup all the relevant bits.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
David S. Miller [Thu, 5 Feb 2009 23:08:11 +0000 (15:08 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6

15 years agoudp: Fix UDP short packet false positive
Jesper Dangaard Brouer [Thu, 5 Feb 2009 23:05:45 +0000 (15:05 -0800)]
udp: Fix UDP short packet false positive

The UDP header pointer assignment must happen after calling
pskb_may_pull().  As pskb_may_pull() can potentially alter the SKB
buffer.

This was exposted by running multicast traffic through the NIU driver,
as it won't prepull the protocol headers into the linear area on
receive.

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoseq_file: fix big-enough lseek() + read()
Alexey Dobriyan [Thu, 5 Feb 2009 21:30:05 +0000 (00:30 +0300)]
seq_file: fix big-enough lseek() + read()

lseek() further than length of the file will leave stale ->index
(second-to-last during iteration). Next seq_read() will not notice
that ->f_pos is big enough to return 0, but will print last item
as if ->f_pos is pointing to it.

Introduced in commit cb510b8172602a66467f3551b4be1911f5a7c8c2
aka "seq_file: more atomicity in traverse()".

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoseq_file: move traverse so it can be used from seq_read
Eric Biederman [Wed, 4 Feb 2009 23:12:25 +0000 (15:12 -0800)]
seq_file: move traverse so it can be used from seq_read

In 2.6.25 some /proc files were converted to use the seq_file
infrastructure.  But seq_files do not correctly support pread(), which
broke some usersapce applications.

To handle pread correctly we can't assume that f_pos is where we left it
in seq_read.  So move traverse() so that we can eventually use it in
seq_read and do thus some day support pread().

Signed-off-by: Eric Biederman <ebiederm@xmission.com>
Cc: Paul Turner <pjt@google.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agosgi-xp: fix writing past the end of kzalloc()'d space
Dean Nelson [Wed, 4 Feb 2009 23:12:24 +0000 (15:12 -0800)]
sgi-xp: fix writing past the end of kzalloc()'d space

A missing type cast results in writing way beyond the end of a kzalloc()'d
memory segment resulting in slab corruption. But it seems like the better
solution is to define ->recv_msg_slots as a 'void *' rather than a
'struct xpc_notify_mq_msg_uv *' and add the type cast.

Signed-off-by: Dean Nelson <dcn@sgi.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 agoalpha: fixup BUG macro
Alexey Dobriyan [Wed, 4 Feb 2009 23:12:21 +0000 (15:12 -0800)]
alpha: fixup BUG macro

Do usual do {} while (0) dance, otherwise

fs/gfs2/util.c:99: error: expected expression before 'else'
drivers/scsi/lpfc/lpfc_sli.c:363: error: expected expression before 'else'

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agosx.c: fix missed unlock_kernel() on error path in sx_fw_ioctl()
Dan Carpenter [Wed, 4 Feb 2009 23:12:20 +0000 (15:12 -0800)]
sx.c: fix missed unlock_kernel() on error path in sx_fw_ioctl()

If we return directly with -EPERM then lock_kernel() is still held.

This was found with a code checker (http://repo.or.cz/w/smatch.git/).

[akpm@linux-foundation.org: fix another such path - missed func_exit()]
Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: <R.E.Wolff@BitWizard.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoatyfb: fix CONFIG_ namespace violations
Randy Dunlap [Wed, 4 Feb 2009 23:12:20 +0000 (15:12 -0800)]
atyfb: fix CONFIG_ namespace violations

Fix namespace violations by changing non-kconfig CONFIG_ names to CNFG_*.

Fixes breakage in staging/, which adds a real CONFIG_PANEL.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agortc-ds1390: fix compilation warnings in drivers/rtc/rtc-ds1390.c
Manish Katiyar [Wed, 4 Feb 2009 23:12:19 +0000 (15:12 -0800)]
rtc-ds1390: fix compilation warnings in drivers/rtc/rtc-ds1390.c

drivers/rtc/rtc-ds1390.c:125: warning: unused variable 'rtc'

Signed-off-by: Manish Katiyar <mkatiyar@gmail.com>
Signed-off-by: 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 agodrivers/video/backlight: rename da903x to da903x_bl
Mike Rapoport [Wed, 4 Feb 2009 23:12:18 +0000 (15:12 -0800)]
drivers/video/backlight: rename da903x to da903x_bl

Currently both da903x backlight and voltage reulator drivers have the
same name. Rename the backlight driver to allow use of both drivers as
modules.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Eric Miao <eric.miao@marvell.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoatmel-ssc: fix misuse of dev_dbg when requested ssc instance is not found
Hans-Christian Egtvedt [Wed, 4 Feb 2009 23:12:17 +0000 (15:12 -0800)]
atmel-ssc: fix misuse of dev_dbg when requested ssc instance is not found

The ssc pointer is not valid when the id is not found in the list.
Convert the message from a debug one into an error message and avoid
dereferencing the bad pointer.

Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Huang Weiyi <weiyi.huang@gmail.com>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodo_wp_page: fix regression with execute in place
Carsten Otte [Wed, 4 Feb 2009 23:12:16 +0000 (15:12 -0800)]
do_wp_page: fix regression with execute in place

Fix do_wp_page for VM_MIXEDMAP mappings.

In the case where pfn_valid returns 0 for a pfn at the beginning of
do_wp_page and the mapping is not shared writable, the code branches to
label `gotten:' with old_page == NULL.

In case the vma is locked (vma->vm_flags & VM_LOCKED), lock_page,
clear_page_mlock, and unlock_page try to access the old_page.

This patch checks whether old_page is valid before it is dereferenced.

The regression was introduced by "mlock: mlocked pages are unevictable"
(commit b291f000393f5a0b679012b39d79fbc85c018233).

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: <stable@kernel.org> [2.6.28.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agowait: prevent exclusive waiter starvation
Johannes Weiner [Wed, 4 Feb 2009 23:12:14 +0000 (15:12 -0800)]
wait: prevent exclusive waiter starvation

With exclusive waiters, every process woken up through the wait queue must
ensure that the next waiter down the line is woken when it has finished.

Interruptible waiters don't do that when aborting due to a signal.  And if
an aborting waiter is concurrently woken up through the waitqueue, noone
will ever wake up the next waiter.

This has been observed with __wait_on_bit_lock() used by
lock_page_killable(): the first contender on the queue was aborting when
the actual lock holder woke it up concurrently.  The aborted contender
didn't acquire the lock and therefor never did an unlock followed by
waking up the next waiter.

Add abort_exclusive_wait() which removes the process' wait descriptor from
the waitqueue, iff still queued, or wakes up the next waiter otherwise.
It does so under the waitqueue lock.  Racing with a wake up means the
aborting process is either already woken (removed from the queue) and will
wake up the next waiter, or it will remove itself from the queue and the
concurrent wake up will apply to the next waiter after it.

Use abort_exclusive_wait() in __wait_event_interruptible_exclusive() and
__wait_on_bit_lock() when they were interrupted by other means than a wake
up through the queue.

[akpm@linux-foundation.org: coding-style fixes]
Reported-by: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Mentored-by: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Chuck Lever <cel@citi.umich.edu>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org> ["after some testing"]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agomaintainers: general@lists.openfabrics.org is moderated
Randy Dunlap [Wed, 4 Feb 2009 23:12:13 +0000 (15:12 -0800)]
maintainers: general@lists.openfabrics.org is moderated

I got the "list is moderated message," so add it here.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agolis3lv02d: add axes knowledge for HP 6710
Martin Kebert [Wed, 4 Feb 2009 23:12:12 +0000 (15:12 -0800)]
lis3lv02d: add axes knowledge for HP 6710

Add support for the HP laptops of model 6710x for having correctly setup
axes.

Signed-off-by: Martin Kebert <gkmarty@gmail.com>
Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agolis3lv02d: add axes knowledge for HP 6730
Pavel Herrmann [Wed, 4 Feb 2009 23:12:11 +0000 (15:12 -0800)]
lis3lv02d: add axes knowledge for HP 6730

Add support for the HP laptops of model 6730x for having correctly setup
axes.

Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com>
Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agolis3lv02d: add axes knowledge for HP 6530
Eric Piel [Wed, 4 Feb 2009 23:12:11 +0000 (15:12 -0800)]
lis3lv02d: add axes knowledge for HP 6530

Add support for the HP laptops of model 6530x for having correctly setup
axes.

Reported-by: Jerome Poulin <jeromepoulin@gmail.com>
Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agolis3lv02d: add axes knowledge for HP 6510b
Jiri Tersel [Wed, 4 Feb 2009 23:12:09 +0000 (15:12 -0800)]
lis3lv02d: add axes knowledge for HP 6510b

According to dmesg my laptop model HP 6510b is not being recognized by this
driver. After I have modified "lis3lv02d.c" axes in Neverball are OK.

Signed-off-by: Jiri Tersel <tersel@mail.muni.cz>
Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agohp-wmi: fix error path in hp_wmi_bios_setup()
Andrew Morton [Wed, 4 Feb 2009 23:12:07 +0000 (15:12 -0800)]
hp-wmi: fix error path in hp_wmi_bios_setup()

The error-path code can call rfkill_unregister() with a pointer which does
not contain the result of a call to rfkill_register().  It goes BUG().

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=12560.

Cc: Frans Pop <elendil@planet.nl>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Len Brown <lenb@kernel.org>
Acked-by: Matthew Garrett <mjg@redhat.com>
Reported-by: Helge Deller <deller@gmx.de>
Testted-by: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agorevert "rlimit: permit setting RLIMIT_NOFILE to RLIM_INFINITY"
Andrew Morton [Wed, 4 Feb 2009 23:12:06 +0000 (15:12 -0800)]
revert "rlimit: permit setting RLIMIT_NOFILE to RLIM_INFINITY"

Revert commit 0c2d64fb6cae9aae480f6a46cfe79f8d7d48b59f because it causes
(arguably poorly designed) existing userspace to spend interminable
periods closing billions of not-open file descriptors.

We could bring this back, with some sort of opt-in tunable in /proc, which
defaults to "off".

Peter's alanysis follows:

: I spent several hours trying to get to the bottom of a serious
: performance issue that appeared on one of our servers after upgrading to
: 2.6.28.  In the end it's what could be considered a userspace bug that
: was triggered by a change in 2.6.28.  Since this might also affect other
: people I figured I'd at least document what I found here, and maybe we
: can even do something about it:
:
:
: So, I upgraded some of debian.org's machines to 2.6.28.1 and immediately
: the team maintaining our ftp archive complained that one of their
: scripts that previously ran in a few minutes still hadn't even come
: close to being done after an hour or so.  Downgrading to 2.6.27 fixed
: that.
:
: Turns out that script is forking a lot and something in it or python or
: whereever closes all the file descriptors it doesn't want to pass on.
: That is, it starts at zero and goes up to ulimit -n/RLIMIT_NOFILE and
: closes them all with a few exceptions.
:
: Turns out that takes a long time when your limit -n is now 2^20 (1048576).
:
: With 2.6.27.* the ulimit -n was the standard 1024, but with 2.6.28 it is
: now a thousand times that.
:
: 2.6.28 included a patch titled "rlimit: permit setting RLIMIT_NOFILE to
: RLIM_INFINITY" (0c2d64fb6cae9aae480f6a46cfe79f8d7d48b59f)[1] that
: allows, as the title implies, to set the limit for number of files to
: infinity.
:
: Closer investigation showed that the broken default ulimit did not apply
: to "system" processes (like stuff started from init).  In the end I
: could establish that all processes that passed through pam_limit at one
: point had the bad resource limit.
:
: Apparently the pam library in Debian etch (4.0) initializes the limits
: to some default values when it doesn't have any settings in limit.conf
: to override them.  Turns out that for nofiles this is RLIM_INFINITY.
: Commenting out "case RLIMIT_NOFILE" in pam_limit.c:267 of our pam
: package version 0.79-5 fixes that - tho I'm not sure what side effects
: that has.
:
: Debian lenny (the upcoming 5.0 version) doesn't have this issue as it
: uses a different pam (version).

Reported-by: Peter Palfrader <weasel@debian.org>
Cc: Adam Tkac <vonsch@gmail.com>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: <stable@kernel.org> [2.6.28.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoshm: fix shmctl(SHM_INFO) lockup with !CONFIG_SHMEM
Tony Battersby [Wed, 4 Feb 2009 23:12:04 +0000 (15:12 -0800)]
shm: fix shmctl(SHM_INFO) lockup with !CONFIG_SHMEM

shm_get_stat() assumes that the inode is a "struct shmem_inode_info",
which is incorrect for !CONFIG_SHMEM (see fs/ramfs/inode.c:
ramfs_get_inode() vs.  mm/shmem.c: shmem_get_inode()).

This bad assumption can cause shmctl(SHM_INFO) to lockup when
shm_get_stat() tries to spin_lock(&info->lock).  Users of !CONFIG_SHMEM
may encounter this lockup simply by invoking the 'ipcs' command.

Reported by Jiri Olsa back in February 2008:
http://lkml.org/lkml/2008/2/29/74

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Reported-by: Jiri Olsa <olsajiri@gmail.com>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: <stable@kernel.org> [2.6.everything]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agofbmem: don't call copy_from/to_user() with mutex held
Andrea Righi [Wed, 4 Feb 2009 23:12:03 +0000 (15:12 -0800)]
fbmem: don't call copy_from/to_user() with mutex held

Avoid calling copy_from/to_user() with fb_info->lock mutex held in fbmem
ioctl().

fb_mmap() is called under mm->mmap_sem (A) held, that also acquires
fb_info->lock (B); fb_ioctl() takes fb_info->lock (B) and does
copy_from/to_user() that might acquire mm->mmap_sem (A), causing a
deadlock.

NOTE: it doesn't push down the fb_info->lock in each own driver's
fb_ioctl(), so there are still potential deadlocks elsewhere.

Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Cc: Dave Jones <davej@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Johannes Weiner <hannes@saeurebad.de>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agortc: rtc-dm355evm driver
David Brownell [Wed, 4 Feb 2009 23:12:01 +0000 (15:12 -0800)]
rtc: rtc-dm355evm driver

Simple RTC driver for the MSP430 firmware on the DM355 EVM board.  Other
than not supporting atomic reads/writes of all four bytes, this is
reasonable as a basic no-alarm RTC.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: 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 agomisc: dell-laptop should depend on POWER_SUPPLY
Matthew Garrett [Wed, 4 Feb 2009 23:12:00 +0000 (15:12 -0800)]
misc: dell-laptop should depend on POWER_SUPPLY

dell-laptop makes use of the power supply class information to choose
which backlight interface to change. Add a depends on it.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agogeneric swap(): don't return a value from swap()
Peter Zijlstra [Wed, 4 Feb 2009 23:11:59 +0000 (15:11 -0800)]
generic swap(): don't return a value from swap()

The swap() macro is accidentally retuning the value of its first argument.
Change it into a doesn't-return-anything macro before someone goes and
relies upon this behaviour.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agohpilo: open/close fix
David Altobelli [Wed, 4 Feb 2009 23:11:58 +0000 (15:11 -0800)]
hpilo: open/close fix

The device can take a while to respond to an open/close request, so
increase the time kernel will wait for response (1 ms to 10ms).

Also, properly clean up a channel on a failed open, by calling the channel
close routine.  Just freeing the memory isn't sufficient, the device needs
to be informed that the channel is no longer open, and the device memory
cleared of references to freed dma buffer.

Signed-off-by: David Altobelli <david.altobelli@hp.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agokernel/async.c: fix printk warnings
Andrew Morton [Wed, 4 Feb 2009 23:11:58 +0000 (15:11 -0800)]
kernel/async.c: fix printk warnings

alpha:

kernel/async.c: In function 'run_one_entry':
kernel/async.c:141: warning: format '%lli' expects type 'long long int', but argument 2 has type 'async_cookie_t'
kernel/async.c:149: warning: format '%lli' expects type 'long long int', but argument 2 has type 'async_cookie_t'
kernel/async.c:149: warning: format '%lld' expects type 'long long int', but argument 4 has type 's64'
kernel/async.c: In function 'async_synchronize_cookie_special':
kernel/async.c:250: warning: format '%lli' expects type 'long long int', but argument 3 has type 's64'

Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoBtrfs: Fix memory leak in cache_drop_leaf_ref
Chris Mason [Thu, 5 Feb 2009 14:08:14 +0000 (09:08 -0500)]
Btrfs: Fix memory leak in cache_drop_leaf_ref

The code wasn't doing a kfree on the sorted array

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoALSA: hda - Fix misc workqueue issues
Takashi Iwai [Thu, 5 Feb 2009 06:34:28 +0000 (07:34 +0100)]
ALSA: hda - Fix misc workqueue issues

Some fixes regarding snd-hda-intel workqueue:
- Use create_singlethread_workqueue() instead of create_workqueue()
  as per-CPU work isn't required.
- Allocate workq name string properly
- Renamed the workq name to "hd-audio*" to be more obvious.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agogianfar: Fix potential soft reset race
Andy Fleming [Thu, 5 Feb 2009 00:38:05 +0000 (16:38 -0800)]
gianfar: Fix potential soft reset race

SOFT_RESET must be asserted for at least 3 TX clocks in order for it to work
properly.  The syncs in the gfar_write() commands have been hiding this, but
we need to guarantee it.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agogianfar: Fix BD_LENGTH_MASK definition
Andy Fleming [Thu, 5 Feb 2009 00:37:40 +0000 (16:37 -0800)]
gianfar: Fix BD_LENGTH_MASK definition

BD_LENGTH_MASK is supposed to catch the low 16-bits of the status field, not
the low byte.  The old way, we would never be able to clean up tx packets with
sizes divisible by 256.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agocxgb3: Fix lro switch
Divy Le Ray [Thu, 5 Feb 2009 00:31:39 +0000 (16:31 -0800)]
cxgb3: Fix lro switch

The LRO switch is always set to 1 in the rx processing loop.
It breaks the accelerated iSCSI receive traffic.
Fix its computation.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoALSA: hda - Add quirk for FSC Amilo Xi2550
Takashi Iwai [Wed, 4 Feb 2009 22:30:19 +0000 (23:30 +0100)]
ALSA: hda - Add quirk for FSC Amilo Xi2550

Added model=fujisu-pi2515 for FSC Amilo Xi2550 with ALC883 codec.

Refernece: Novell bnc#450979
https://bugzilla.novell.com/show_bug.cgi?id=450979

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 4 Feb 2009 21:58:50 +0000 (13:58 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: APIC: enable workaround on AMD Fam10h CPUs
  xen: disable interrupts before saving in percpu
  x86: add x86@kernel.org to MAINTAINERS
  x86: push old stack address on irqstack for unwinder
  irq, x86: fix lock status with numa_migrate_irq_desc
  x86: add cache descriptors for Intel Core i7
  x86/Voyager: make it build and boot

15 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 4 Feb 2009 21:58:37 +0000 (13:58 -0800)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: add missing kernel-doc in sched.h