GitHub/LineageOS/G12/android_kernel_amlogic_linux-4.9.git
13 years agoARM: 6786/1: enable CONFIG_KTIME_SCALAR
Rob Herring [Fri, 4 Mar 2011 22:51:59 +0000 (23:51 +0100)]
ARM: 6786/1: enable CONFIG_KTIME_SCALAR

Use straight 64-bit values as 64-bit operations are fairly efficient on ARM.
Comparing the asm output with and without KTIME_SCALAR, using 64-bit math
generates clearly better code.

Comparing kernel/hrtimer.c .text size, it goes from 0x1414 to 0x119c with
this change.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6778/1: compressed/head.S: make LDFLAGS_vmlinux into a recursively expanded...
Nicolas Pitre [Wed, 2 Mar 2011 17:08:55 +0000 (18:08 +0100)]
ARM: 6778/1: compressed/head.S: make LDFLAGS_vmlinux into a recursively expanded variable

The simply expanded variable may be evaluated before the target file for
the stat command is up to date or even exists.  Switching to a recursively
expanded variable move the execution of the stat command to the location
where LDFLAGS_vmlinux is actually used, fixing the dependency issue
introduced by patch #6746/1.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6777/1: gic: Add hooks for architecture specific extensions
Santosh Shilimkar [Wed, 2 Mar 2011 07:03:22 +0000 (08:03 +0100)]
ARM: 6777/1: gic: Add hooks for architecture specific extensions

Few architectures combine the GIC with an external interrupt
controller. On such systems it may be necessary to update both
the GIC registers and the external controller's registers to control
IRQ behavior.

This can be addressed in couple of possible methods.
 1. Export common GIC routines along with 'struct irq_chip gic_chip'
    and allow architectures to have custom function by override.
 2. Provide architecture specific function pointer hooks
    within GIC library and leave platforms to add the necessary
    code as part of these hooks.

First one might be non-intrusive but have few shortcomings like arch
needs to have there own custom gic library. Locks used should be
common since it caters to same IRQs etc. Maintenance point of view
also it leads to multiple file fixes.

The second probably is cleaner and portable. It ensures that all the
common GIC infrastructure is not touched and also provides archs to
address their specific issue.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Colin Cross <ccross@android.com>
Tested-by: Colin Cross <ccross@android.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6755/1: omap4: l2x0: Populate set_debug() function and enable Errata 727915
Santosh Shilimkar [Tue, 22 Feb 2011 09:00:44 +0000 (10:00 +0100)]
ARM: 6755/1: omap4: l2x0: Populate set_debug() function and enable Errata 727915

Populate the l2x0 set_debug function pointer with OMAP secure call
and enable the PL310 Errata 727915

This patch has dependency on the earlier patch
ARM: l2x0: Errata fix for flush by Way operation can cause data
corruption

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6795/1: l2x0: Errata fix for flush by Way operation can cause data corrupti
Santosh Shilimkar [Tue, 8 Mar 2011 05:59:54 +0000 (06:59 +0100)]
ARM: 6795/1: l2x0: Errata fix for flush by Way operation can cause data corrupti

PL310 implements the Clean & Invalidate by Way L2 cache maintenance
operation (offset 0x7FC). This operation runs in background so that
PL310 can handle normal accesses while it is in progress. Under very
rare circumstances, due to this erratum, write data can be lost when
PL310 treats a cacheable write transaction during a Clean & Invalidate
by Way operation.

Workaround:
Disable Write-Back and Cache Linefill (Debug Control Register)
Clean & Invalidate by Way (0x7FC)
Re-enable Write-Back and Cache Linefill (Debug Control Register)

This patch also removes any OMAP dependency on PL310 Errata's

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6746/1: remove the 4x expansion presumption while decompressing the kernel
Nicolas Pitre [Mon, 21 Feb 2011 03:57:38 +0000 (04:57 +0100)]
ARM: 6746/1: remove the 4x expansion presumption while decompressing the kernel

We currently presume a 4x expansion to guess the decompressed kernel size
in order to determine if the decompressed kernel is in conflict with
the location where zImage is loaded.  This guess may cause many issues
by overestimating the final kernel image size:

- This may force a needless relocation if the location of zImage was
  fine, wasting some precious microseconds of boot time.

- The relocation may be located way too far, possibly overwriting the
  initrd image in RAM.

- If the kernel image includes a large already-compressed initramfs image
  then the problem is even more exacerbated.

And if by some strange means the 4x guess is too low then we may overwrite
ourselves with the decompressed image.

So let's use the exact decompressed kernel image size instead.  For that
we need to rely on the stat command, but this is hardly a new build
dependency as the kernel already depends on many external commands
to be built provided by the coreutils package where stat is found.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6750/1: improvements to compressed/head.S
Nicolas Pitre [Mon, 21 Feb 2011 06:06:45 +0000 (07:06 +0100)]
ARM: 6750/1: improvements to compressed/head.S

In the case of a conflict between the memory used by the compressed
kernel with its decompressor code and the memory used for the
decompressed kernel, we currently store the later after the former and
relocate it afterwards.

This would be more efficient to do this the other way around i.e.
relocate the compressed data up front instead, resulting in a smaller
copy.  That also has the advantage of making the code smaller and more
straight forward.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6668/1: ptrace: remove single-step emulation code
Will Deacon [Mon, 14 Feb 2011 13:31:09 +0000 (14:31 +0100)]
ARM: 6668/1: ptrace: remove single-step emulation code

PTRACE_SINGLESTEP is a ptrace request designed to offer single-stepping
support to userspace when the underlying architecture has hardware
support for this operation.

On ARM, we set arch_has_single_step() to 1 and attempt to emulate hardware
single-stepping by disassembling the current instruction to determine the
next pc and placing a software breakpoint on that location.

Unfortunately this has the following problems:

1.) Only a subset of ARMv7 instructions are supported
2.) Thumb-2 is unsupported
3.) The code is not SMP safe

We could try to fix this code, but it turns out that because of the above
issues it is rarely used in practice.  GDB, for example, uses PTRACE_POKETEXT
and PTRACE_PEEKTEXT to manage breakpoints itself and does not require any
kernel assistance.

This patch removes the single-step emulation code from ptrace meaning that
the PTRACE_SINGLESTEP request will return -EIO on ARM. Portable code must
check the return value from a ptrace call and handle the failure gracefully.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: move L1_CACHE_SHIFT_6 to mm/Kconfig
Russell King [Mon, 14 Feb 2011 15:55:45 +0000 (15:55 +0000)]
ARM: move L1_CACHE_SHIFT_6 to mm/Kconfig

Move L1_CACHE_SHIFT related options together, rather than spreading them
across two separate Kconfig files.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6663/1: make Thumb2 kernel entry point more similar to the ARM one
Nicolas Pitre [Sat, 12 Feb 2011 21:25:27 +0000 (22:25 +0100)]
ARM: 6663/1: make Thumb2 kernel entry point more similar to the ARM one

Some installers would binary patch the kernel zImage to replace the
first few nops with custom instructions.  This breaks the Thumb2 kernel
as the mode switch is right at the beginning.  Let's move it towards the
end of the nop sequence instead.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: vfp: improve commentry for hotplug events
Russell King [Mon, 31 Jan 2011 14:43:25 +0000 (14:43 +0000)]
ARM: vfp: improve commentry for hotplug events

Improve the documentation for the VFP hotplug notifier handler, so
that people better understand what's going on there and what has
been done for them.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6639/1: allow highmem on SMP platforms without h/w TLB ops broadcast
Nicolas Pitre [Tue, 25 Jan 2011 20:35:38 +0000 (21:35 +0100)]
ARM: 6639/1: allow highmem on SMP platforms without h/w TLB ops broadcast

In commit e616c591405c168f6dc3dfd1221e105adfe49b8d, highmem support was
deactivated for SMP platforms without hardware TLB ops broadcast because
usage of kmap_high_get() requires that IRQs be disabled when kmap_lock
is locked which is incompatible with the IPI mechanism used by the
software TLB ops broadcast invoked through flush_all_zero_pkmaps().

The reason for kmap_high_get() is to ensure that the currently kmap'd
page usage count does not decrease to zero while we're using its
existing virtual mapping in an atomic context.  With a VIVT cache this
is essential to do due to cache coherency issues, but with a VIPT cache
this is only an optimization so not to pay the price of establishing a
second mapping if an existing one can be used.  However, on VIPT
platforms without hardware TLB maintenance we can give up on that
optimization in order to be able to use highmem.

From ARMv7 onwards the TLB ops are broadcasted in hardware, so let's
disable ARCH_NEEDS_KMAP_HIGH_GET only when CONFIG_SMP and
CONFIG_CPU_TLB_V6 are defined.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Saeed Bishara <saeed.bishara@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: irq migration: update GIC migration code
Russell King [Sun, 23 Jan 2011 12:12:01 +0000 (12:12 +0000)]
ARM: irq migration: update GIC migration code

This cleans up after the conversion to irq_data.  Rename the function
to match the method, and remove the now useless lookup of the irq
descriptor which is never used.  Move the bitmask calculation out of
the irq_controller_lock region.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: irq migration: ensure migration is handled safely
Russell King [Sun, 23 Jan 2011 12:09:36 +0000 (12:09 +0000)]
ARM: irq migration: ensure migration is handled safely

Ensure appropriate locks are taken to ensure that IRQ migration off
the current CPU is race-free.  We may have a concurrent set_affinity
via procfs running on another CPU in parallel with the IRQ migration,
resulting in unpredictable results.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: irq migration: force migration off CPU going down
Russell King [Sun, 23 Jan 2011 12:08:16 +0000 (12:08 +0000)]
ARM: irq migration: force migration off CPU going down

The force argument to irq_set_affinity really should be 'true' as
moving IRQs off a CPU which is going down isn't optional.

Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: 6608/1: enable bridges in pci_common_init.
Colin Tuckley [Thu, 6 Jan 2011 10:16:49 +0000 (11:16 +0100)]
ARM: 6608/1: enable bridges in pci_common_init.

Add a missing call to pci_enable_bridges() so that devices behind
bridges get found by the pci bus scan.

Signed-off-by: Chris Partington <chris.partington@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: improve module relocation fixup diagnostics
Russell King [Tue, 11 Jan 2011 19:57:14 +0000 (19:57 +0000)]
ARM: improve module relocation fixup diagnostics

Current diagnostics are rather poor when things go wrong:
  ipv6: relocation out of range, section 2 reloc 0 sym 'snmp_mib_free'

Let's include a little more information about the problem:
  ipv6: section 2 reloc 0 sym 'snmp_mib_free': relocation 28 out of range (0xbf0000a4 -> 0xc11b4858)

so that we show exactly what the problem is - not only what type of
relocation but also the offending address range too.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: add 'uinstall' target for installing uboot kernels
Russell King [Sat, 8 Jan 2011 16:18:51 +0000 (16:18 +0000)]
ARM: add 'uinstall' target for installing uboot kernels

We have 'install' and 'zinstall' for installing Image and zImage
kernels, so add 'uinstall' to complete the set.

This allows developers to have a ~/bin/installkernel script which (eg)
copies the kernel to the tftp server automatically once the kernel
has built, resulting in a better workflow.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: fix some sparse errors in generic ARM code
Russell King [Sat, 8 Jan 2011 12:05:09 +0000 (12:05 +0000)]
ARM: fix some sparse errors in generic ARM code

arch/arm/kernel/return_address.c:37:6: warning: symbol 'return_address' was not declared. Should it be static?
arch/arm/kernel/setup.c:76:14: warning: symbol 'processor_id' was not declared. Should it be static?
arch/arm/kernel/traps.c:259:1: warning: symbol 'die_lock' was not declared. Should it be static?
arch/arm/vfp/vfpmodule.c:156:6: warning: symbol 'vfp_raise_sigfpe' was not declared. Should it be static?

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: DMA: top-down allocation in DMA coherent region
Russell King [Sat, 8 Jan 2011 11:49:20 +0000 (11:49 +0000)]
ARM: DMA: top-down allocation in DMA coherent region

Achieve better usage of the DMA coherent region by doing top-down
allocation rather than bottom up.  If we ask for a 128kB allocation,
this will be aligned to 128kB and satisfied from the very bottom
address.  If we then ask for a 600kB allocation, this will be aligned
to 1MB, and we will have a 896kB hole.

Performing top-down allocation resolves this by allocating the 128kB
at the very top, and then the 600kB can come in below it without any
unnecessary wastage.

This problem was reported by Janusz Krzysztofik, who had 2 x 128kB +
1 x 640kB allocations which wouldn't fit into 1MB.

Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: Defer lookup of machine_type to setup.c
Russell King [Wed, 12 Jan 2011 17:50:42 +0000 (17:50 +0000)]
ARM: Defer lookup of machine_type to setup.c

Since the debug macros no longer depend on the machine type information,
the machine type lookup can be deferred to setup_arch() in setup.c which
simplifies the code somewhat.

We also move the __error_a functionality into setup.c for displaying a
message when a bad machine ID is passed to the kernel via the LL debug
code.  We also log this into the kernel ring buffer which makes it
possible to retrieve the message via a debugger.

Original idea from Grant Likely.

Acked-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoLinux 2.6.38-rc3
Linus Torvalds [Tue, 1 Feb 2011 03:05:49 +0000 (13:05 +1000)]
Linux 2.6.38-rc3

13 years agoMerge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
Linus Torvalds [Mon, 31 Jan 2011 23:41:02 +0000 (09:41 +1000)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFS: NFSv4 readdir loses entries
  NFS: Micro-optimize nfs4_decode_dirent()
  NFS: Fix an NFS client lockdep issue
  NFS construct consistent co_ownerid for v4.1
  NFS: nfs_wcc_update_inode() should set nfsi->attr_gencount
  NFS improve pnfs_put_deviceid_cache debug print
  NFS fix cb_sequence error processing
  NFS do not find client in NFSv4 pg_authenticate
  NLM: Fix "kernel BUG at fs/lockd/host.c:417!" or ".../host.c:283!"
  NFS: Prevent memory allocation failure in nfsacl_encode()
  NFS: nfsacl_{encode,decode} should return signed integer
  NFS: Fix "kernel BUG at fs/nfs/nfs3xdr.c:1338!"
  NFS: Fix "kernel BUG at fs/aio.c:554!"
  NFS4: Avoid potential NULL pointer dereference in decode_and_add_ds().
  NFS: fix handling of malloc failure during nfs_flush_multi()

13 years agoMerge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Mon, 31 Jan 2011 22:30:31 +0000 (08:30 +1000)]
Merge branch 'fixes' of /home/rmk/linux-2.6-arm

* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: smp_on_up: allow non-ARM SMP processors
  ARM: io: ensure inb/outb() et.al. are properly ordered on ARMv6+
  ARM: initrd: disable initrd if passed address overlaps reserved region
  ARM: footbridge: fix debug macros
  ARM: mmci: round down the bytes transferred on error
  ARM: mmci: complete the transaction on error
  ARM: 6642/1: mmci: calculate remaining bytes at error correctly

13 years agoMerge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 31 Jan 2011 22:27:55 +0000 (08:27 +1000)]
Merge branch 'omap-fixes-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6

* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
  arch/arm/mach-omap2/dma.c: Convert IS_ERR result to PTR_ERR
  arm: omap2: mux: fix compile warning
  omap1: Simplify use of omap_irq_flags
  omap2+: Fix unused variable warning for omap_irq_base

13 years agokernel.h: fix kernel-doc warning
Randy Dunlap [Mon, 31 Jan 2011 17:29:14 +0000 (09:29 -0800)]
kernel.h: fix kernel-doc warning

Fix kernel-doc warning in kernel.h from commit 7ef88ad56145
("BUILD_BUG_ON: make it handle more cases"):

  Warning(include/linux/kernel.h:605): No description found for parameter 'condition'
  Warning(include/linux/kernel.h:605): Excess function parameter 'cond' description in 'BUILD_BUG_ON'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Mon, 31 Jan 2011 22:15:40 +0000 (08:15 +1000)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: xfs_bmap_add_extent_delay_real should init br_startblock
  xfs: fix dquot shaker deadlock
  xfs: handle CIl transaction commit failures correctly
  xfs: limit extsize to size of AGs and/or MAXEXTLEN
  xfs: prevent extsize alignment from exceeding maximum extent size
  xfs: limit extent length for allocation to AG size
  xfs: speculative delayed allocation uses rounddown_power_of_2 badly
  xfs: fix efi item leak on forced shutdown
  xfs: fix log ticket leak on forced shutdown.

13 years agovirtio: update MAINTAINERS
Michael S. Tsirkin [Mon, 31 Jan 2011 06:16:20 +0000 (16:46 +1030)]
virtio: update MAINTAINERS

Patches should keep coming through Rusty but it helps if I'm Cc'd as
well.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Mon, 31 Jan 2011 22:07:40 +0000 (08:07 +1000)]
Merge branch 'usb-linus' of git://git./linux/kernel/git/gregkh/usb-2.6

* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (42 commits)
  usb: gadget: composite: avoid access beyond array max length
  USB: serial: handle Data Carrier Detect changes
  USB: gadget: Fix endpoint representation in ci13xxx_udc
  USB: gadget: Fix error path in ci13xxx_udc gadget probe function
  usb: pch_udc: Fix the worning log issue at gadget driver remove
  USB: serial: Updated support for ICOM devices
  USB: ehci-mxc: add work-around for efika mx/sb bug
  USB: unbreak ehci-mxc on otg port of i.MX27
  drivers: update to pl2303 usb-serial to support Motorola cables
  USB: adding USB support for Cinterion's HC2x, EU3 and PH8 products
  USB serial: add missing .usb_driver field in serial drivers
  USB: ehci-fsl: Fix 'have_sysif_regs' detection
  USB: g_printer: fix bug in module parameter definitions
  USB: g_printer: fix bug in unregistration
  USB: uss720: remove duplicate USB device
  MAINTAINERS: add ueagle-atm entry
  USB: EHCI: fix DMA deallocation bug
  USB: pch_udc: support new device ML7213 IOH
  usb: pch_udc: Fixed issue which does not work with g_serial
  usb: set ep_dev async suspend should be later than device_initialize
  ...

13 years agoMerge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Mon, 31 Jan 2011 22:06:31 +0000 (08:06 +1000)]
Merge branch 'staging-linus' of git://git./linux/kernel/git/gregkh/staging-2.6

* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (26 commits)
  staging: r8712u: Add new device IDs
  staging: brcm80211: fix suspend/resume issue in brcmsmac
  staging: brcm80211: remove assert to avoid panic since 2.6.37 kernel
  Staging: iio: Aditional fixpoint formatted output bugfix
  staging: usbip: vhci: use urb->dev->portnum to find port
  staging: usbip: vhci: handle EAGAIN from SO_RCVTIMEO
  staging: usbip: vhci: friendly log messages for connection errors
  staging: usbip: vhci: refuse to enqueue for dead connections
  staging: usbip: vhci: give back URBs from in-flight unlink requests
  staging: usbip: vhci: update reference count for usb_device
  staging: usbip: stub: update refcounts for devices and interfaces
  staging: tidspbridge: replace mbox callback with notifier_call
  staging: comedi: ni_labpc: Use shared IRQ for PCMCIA card
  Staging: speakup: &&/|| confusion in silent_store()
  iio: Fixpoint formatted output bugfix
  staging: rt2860: Fix incorrect netif_stop_queue usage warning
  staging: r8712u: Fix memory leak in firmware loading
  staging: tidspbridge: configure full L1 MMU range
  staging: rt2870sta: Add ID for Linksys WUSB100v2
  Staging: xgfib: put parenthesis in the right place
  ...

13 years agoMerge branch 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Mon, 31 Jan 2011 22:05:19 +0000 (08:05 +1000)]
Merge branch 'tty-linus' of git://git./linux/kernel/git/gregkh/tty-2.6

* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  tty/serial: fix apbuart build
  n_hdlc: fix read and write locking
  serial: unbreak billionton CF card
  tty: use for_each_console() and WARN() on sysfs failures
  vt: fix issue when fbcon wants to takeover a second time.

Fix up trivial conflict in drivers/tty/tty_io.c

13 years agoARM: smp_on_up: allow non-ARM SMP processors
Russell King [Sun, 30 Jan 2011 16:40:20 +0000 (16:40 +0000)]
ARM: smp_on_up: allow non-ARM SMP processors

Allow non-ARM SMP processors to use the SMP_ON_UP feature.  CPUs
supporting SMP must have the new CPU ID format, so check for this first.
Then check for ARM11MPCore, which fails the MPIDR check.  Lastly check
the MPIDR reports multiprocessing extensions and that the CPU is part of
a multiprocessing system.

Cc: <stable@kernel.org>
Reported-and-Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: io: ensure inb/outb() et.al. are properly ordered on ARMv6+
Russell King [Sun, 30 Jan 2011 11:29:40 +0000 (11:29 +0000)]
ARM: io: ensure inb/outb() et.al. are properly ordered on ARMv6+

Ensure that the ISA/PCI IO space accessors are properly ordered on
ARMv6+ architectures.  These should always be ordered with respect to
all other accesses.

This also fixes __iormb() and __iowmb() not being visible to ioread/
iowrite if a platform defines its own MMIO accessors.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: initrd: disable initrd if passed address overlaps reserved region
Russell King [Sun, 30 Jan 2011 11:21:05 +0000 (11:21 +0000)]
ARM: initrd: disable initrd if passed address overlaps reserved region

Disable the initrd if the passed address already overlaps the reserved
region.  This avoids oopses on Netwinders when NeTTrom tells the kernel
that an initrd is located at mem+4MB, but this overlaps the BSS,
resulting in the kernels in-use BSS being freed.

This should be applied to v2.6.37-stable.

Cc: <stable@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: footbridge: fix debug macros
Russell King [Fri, 28 Jan 2011 20:57:57 +0000 (20:57 +0000)]
ARM: footbridge: fix debug macros

0ea1293 (arm: return both physical and virtual addresses from addruart)
changed the way the 'addruart' worked, making it return both the virt
and phys addresses.  Unfortunately, for footbridge, these were reversed.
Fix that.  Tested on Netwinder.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: mmci: round down the bytes transferred on error
Russell King [Sun, 30 Jan 2011 21:06:53 +0000 (21:06 +0000)]
ARM: mmci: round down the bytes transferred on error

We should not report incomplete blocks on error.  Return the number of
bytes successfully transferred, rounded down to the nearest block.

Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: mmci: complete the transaction on error
Russell King [Sun, 30 Jan 2011 21:03:50 +0000 (21:03 +0000)]
ARM: mmci: complete the transaction on error

When we encounter an error, make sure we complete the transaction
otherwise we'll leave the request dangling.

Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoMerge branch 'for-linus' of git://git.infradead.org/ubi-2.6
Linus Torvalds [Mon, 31 Jan 2011 03:04:51 +0000 (13:04 +1000)]
Merge branch 'for-linus' of git://git.infradead.org/ubi-2.6

* 'for-linus' of git://git.infradead.org/ubi-2.6:
  Revert "UBI: use mtd->writebufsize to set minimal I/O unit size"

13 years agoInput: rc-keymap - return KEY_RESERVED for unknown mappings
Dmitry Torokhov [Sat, 29 Jan 2011 07:33:29 +0000 (23:33 -0800)]
Input: rc-keymap - return KEY_RESERVED for unknown mappings

Do not respond with -EINVAL to EVIOCGKEYCODE for not-yet-mapped
scancodes, but rather return KEY_RESERVED.

This fixes breakage with Ubuntu's input-kbd utility that stopped
returning full keymaps for remote controls.

Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Tested-by: Mark Lord <kernel@teksavvy.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Mon, 31 Jan 2011 03:02:34 +0000 (13:02 +1000)]
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: synaptics - retry failed resets when reconnecting
  Input: synaptics - fix reconnect logic on MT devices
  Input: tegra-kbc - fix keymap entry for LeftMeta key
  Input: tegra-kbc - fix build error

13 years agoFix prlimit64 for suid/sgid processes
Kacper Kornet [Fri, 28 Jan 2011 23:21:04 +0000 (00:21 +0100)]
Fix prlimit64 for suid/sgid processes

Since check_prlimit_permission always fails in the case of SUID/GUID
processes, such processes are not able to read or set their own limits.
This commit changes this by assuming that process can always read/change
its own limits.

Signed-off-by: Kacper Kornet <kornet@camk.edu.pl>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agointel_scu_ipc: remove duplicated #include
Huang Weiyi [Fri, 28 Jan 2011 14:05:25 +0000 (22:05 +0800)]
intel_scu_ipc: remove duplicated #include

Remove duplicated #include('s) in
  drivers/platform/x86/intel_scu_ipc.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoNTFS: Fix invalid pointer dereference in ntfs_mft_record_alloc().
Anton Altaparmakov [Fri, 28 Jan 2011 20:45:28 +0000 (20:45 +0000)]
NTFS: Fix invalid pointer dereference in ntfs_mft_record_alloc().

In ntfs_mft_record_alloc() when mapping the new extent mft record with
map_extent_mft_record() we overwrite @m with the return value and on
error, we then try to use the old @m but that is no longer there as @m
now contains an error code instead so we crash when dereferencing the
error code as if it were a pointer.

The simple fix is to use a temporary variable to store the return value
thus preserving the original @m for later use.  This is a backport from
the commercial Tuxera-NTFS driver and is well tested...

Thanks go to Julia Lawall for pointing this out (whilst I had fixed it
in the commercial driver I had failed to fix it in the Linux kernel).

Signed-off-by: Anton Altaparmakov <anton@tuxera.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Mon, 31 Jan 2011 02:56:27 +0000 (12:56 +1000)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: More crypto cleanup (try #2)
  CIFS: Add strictcache mount option
  CIFS: Implement cifs_strict_writev (try #4)
  [CIFS] Replace cifs md5 hashing functions with kernel crypto APIs

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Mon, 31 Jan 2011 02:55:38 +0000 (12:55 +1000)]
Merge branch 'for-linus' of git://git./linux/kernel/git/cmarinas/linux-2.6-cm

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm:
  kmemleak: Allow kmemleak metadata allocations to fail
  kmemleak: remove memset by using kzalloc

13 years agoMerge branch 'zerolen' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6
Linus Torvalds [Mon, 31 Jan 2011 02:54:54 +0000 (12:54 +1000)]
Merge branch 'zerolen' of git://git./linux/kernel/git/jgarzik/misc-2.6

* 'zerolen' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
  Delete zero-length drivers/staging/vme/bridges/Module.symvers

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Mon, 31 Jan 2011 02:53:12 +0000 (12:53 +1000)]
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 automute on Thinkpad L412/L512
  ALSA: HDA: Fix dmesg output of HDMI supported bits
  ALSA: fix invalid hardware.h include in ac97c for AVR32 architecture
  ASoC: correct link specifications for corgi, poodle and spitz
  ASoC: Samsung: Fix outdated cpu_dai_name for s3c24xx i2s
  ASoC: Fix codec device id format used by some dai_links
  ALSA: azt3328 -  fix broken AZF_FMT_XLATE macro
  ALSA: Xonar, CS43xx: Don't overrun static array
  ASoC: Handle low measured DC offsets for wm_hubs devices
  ASoC: da8xx/omap-l1xx: match codec_name with i2c ids
  ASoC: WM8994: fix wrong value in tristate function
  ASoC: WM8995: Fix incorrect use of snd_soc_update_bits()

13 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Mon, 31 Jan 2011 02:51:28 +0000 (12:51 +1000)]
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:
  libata: set queue DMA alignment to sector size for ATAPI too
  libata: DVR-212D can't do SETXFER DVD-RW DVR-212D
  ahci: add HFLAG_YES_FBS and apply it to 88SE9128
  pata_hpt37x: inherit prereset() method for HPT374
  ahci: AHCI mode SATA patch for Intel DH89xxCC DeviceIDs
  pata_hpt37x: fold 'if' statement into 'switch'
  pata_hpt{37x|3x2n}: use pr_*(DRV_NAME ...) instead of printk(KERN_* ...)
  pata_hpt{366|37x}: use pr_warning(...) instead of printk(KERN_WARNING ...)
  pata_mpc52xx: inherit from ata_bmdma_port_ops

13 years agoMerge branch 'for-linus' of git://android.git.kernel.org/kernel/tegra
Linus Torvalds [Mon, 31 Jan 2011 02:49:26 +0000 (12:49 +1000)]
Merge branch 'for-linus' of git://android.git./kernel/tegra

* 'for-linus' of git://android.git.kernel.org/kernel/tegra:
  ARM: tegra: clock: Add forward reference to struct clk
  ARM: tegra: irq: Rename gic pointers to avoid conflicts
  arm/tegra: Fix tegra irq_data conversion

13 years agoRevert "UBI: use mtd->writebufsize to set minimal I/O unit size"
Artem Bityutskiy [Sat, 29 Jan 2011 16:27:13 +0000 (18:27 +0200)]
Revert "UBI: use mtd->writebufsize to set minimal I/O unit size"

This reverts commit a121f643993474548fe98144514c50dd4f3dbe76.

Unfortunately, this commit breaks UBIFS backward compatibility and
makes new UBIFS refuse older UBIFS-formatted media:

UBIFS error: validate_sb: min. I/O unit mismatch: 8 in superblock, 64 real

Thus, we have to revert this patch and work on a better solution.

Reported-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
13 years agoInput: synaptics - retry failed resets when reconnecting
Alexandre Peixoto Ferreira [Sat, 29 Jan 2011 06:05:14 +0000 (22:05 -0800)]
Input: synaptics - retry failed resets when reconnecting

On some machines, like Dell Studio XPS 16 (1640), touchpad fails to
respond to the standard query after first reset but may start
responding later, so let's repeat reset sequence several (3) times.

Signed-off-by: Alexandre Peixoto Ferreira <alexandref75@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
13 years agoInput: synaptics - fix reconnect logic on MT devices
Alexandre Peixoto Ferreira [Sat, 29 Jan 2011 06:05:14 +0000 (22:05 -0800)]
Input: synaptics - fix reconnect logic on MT devices

synaptics_set_advanced_gesture_mode() affect capabilities bits we should
perform comparison after calling this function, otherwise they will never
match and we will be forced to perform full reconnect.

Signed-off-by: Alexandre Peixoto Ferreira <alexandref75@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
13 years agoInput: tegra-kbc - fix keymap entry for LeftMeta key
Rakesh Iyer [Sat, 29 Jan 2011 06:05:14 +0000 (22:05 -0800)]
Input: tegra-kbc - fix keymap entry for LeftMeta key

Correct key mapping for Left Meta key.

Signed-off-by: Rakesh Iyer <riyer@nvidia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
13 years agoInput: tegra-kbc - fix build error
Rakesh Iyer [Sat, 29 Jan 2011 06:05:14 +0000 (22:05 -0800)]
Input: tegra-kbc - fix build error

Fix build error introduced by variable name change.

Signed-off-by: Rakesh Iyer <riyer@nvidia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
13 years agoNFS: NFSv4 readdir loses entries
Chuck Lever [Fri, 28 Jan 2011 17:41:05 +0000 (12:41 -0500)]
NFS: NFSv4 readdir loses entries

On recent 2.6.38-rc kernels, connectathon basic test 6 fails on
NFSv4 mounts of OpenSolaris with something like:

> ./test6: readdir
>  ./test6: (/mnt/klimt/matisse.test) didn't read expected 'file.12' dir entry, pass 0
>  ./test6: (/mnt/klimt/matisse.test) didn't read expected 'file.82' dir entry, pass 0
>  ./test6: (/mnt/klimt/matisse.test) didn't read expected 'file.164' dir entry, pass 0
>  ./test6: (/mnt/klimt/matisse.test) Test failed with 3 errors
> basic tests failed
> Tests failed, leaving /mnt/klimt mounted
> [cel@matisse cthon04]$

I narrowed the problem down to nfs4_decode_dirent() reporting that the
decode buffer had overflowed while decoding the entries for those
missing files.

verify_attr_len() assumes both it's pointer arguments reside on the
same page.  When these arguments point to locations on two different
pages, verify_attr_len() can report false errors.  This can happen now
that a large NFSv4 readdir result can span pages.

We have reasonably good checking in nfs4_decode_dirent() anyway, so
it should be safe to simply remove the extra checking.

At a guess, this was introduced by commit 6650239a, "NFS: Don't use
vm_map_ram() in readdir".

Cc: stable@kernel.org [2.6.37]
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
13 years agoNFS: Micro-optimize nfs4_decode_dirent()
Chuck Lever [Fri, 28 Jan 2011 17:40:55 +0000 (12:40 -0500)]
NFS: Micro-optimize nfs4_decode_dirent()

Make the decoding of NFSv4 directory entries slightly more efficient
by:

  1.  Avoiding unnecessary byte swapping when checking XDR booleans,
      and

  2.  Not bumping "p" when its value will be immediately replaced by
      xdr_inline_decode()

This commit makes nfs4_decode_dirent() consistent with similar logic
in the other two decode_dirent() functions.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
13 years agoNFS: Fix an NFS client lockdep issue
Trond Myklebust [Thu, 27 Jan 2011 19:55:39 +0000 (14:55 -0500)]
NFS: Fix an NFS client lockdep issue

There is no reason to be freeing the delegation cred in the rcu callback,
and doing so is resulting in a lockdep complaint that rpc_credcache_lock
is being called from both softirq and non-softirq contexts.

Reported-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
13 years agoxfs: xfs_bmap_add_extent_delay_real should init br_startblock
bpm@sgi.com [Wed, 19 Jan 2011 17:41:58 +0000 (17:41 +0000)]
xfs: xfs_bmap_add_extent_delay_real should init br_startblock

When filling in the middle of a previous delayed allocation in
xfs_bmap_add_extent_delay_real, set br_startblock of the new delay
extent to the right to nullstartblock instead of 0 before inserting
the extent into the ifork (xfs_iext_insert), rather than setting
br_startblock afterward.

Adding the extent into the ifork with br_startblock=0 can lead to
the extent being copied into the btree by xfs_bmap_extent_to_btree
if we happen to convert from extents format to btree format before
updating br_startblock with the correct value.  The unexpected
addition of this delay extent to the btree can cause subsequent
XFS_WANT_CORRUPTED_GOTO filesystem shutdown in several
xfs_bmap_add_extent_delay_real cases where we are converting a delay
extent to real and unexpectedly find an extent already inserted.
For example:

911         case BMAP_LEFT_FILLING:
912                 /*
913                  * Filling in the first part of a previous delayed allocation.
914                  * The left neighbor is not contiguous.
915                  */
916                 trace_xfs_bmap_pre_update(ip, idx, state, _THIS_IP_);
917                 xfs_bmbt_set_startoff(ep, new_endoff);
918                 temp = PREV.br_blockcount - new->br_blockcount;
919                 xfs_bmbt_set_blockcount(ep, temp);
920                 xfs_iext_insert(ip, idx, 1, new, state);
921                 ip->i_df.if_lastex = idx;
922                 ip->i_d.di_nextents++;
923                 if (cur == NULL)
924                         rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
925                 else {
926                         rval = XFS_ILOG_CORE;
927                         if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
928                                         new->br_startblock, new->br_blockcount,
929                                         &i)))
930                                 goto done;
931                         XFS_WANT_CORRUPTED_GOTO(i == 0, done);

With the bogus extent in the btree we shutdown the filesystem at
931.  The conversion from extents to btree format happens when the
number of extents in the inode increases above ip->i_df.if_ext_max.
xfs_bmap_extent_to_btree copies extents from the ifork into the
btree, ignoring all delalloc extents which are denoted by
br_startblock having some value of nullstartblock.

SGI-PV: 1013221

Signed-off-by: Ben Myers <bpm@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
13 years agoxfs: fix dquot shaker deadlock
Dave Chinner [Fri, 28 Jan 2011 00:20:46 +0000 (11:20 +1100)]
xfs: fix dquot shaker deadlock

Commit 368e136 ("xfs: remove duplicate code from dquot reclaim") fails
to unlock the dquot freelist when the number of loop restarts is
exceeded in xfs_qm_dqreclaim_one(). This causes hangs in memory
reclaim.

Rework the loop control logic into an unwind stack that all the
different cases jump into. This means there is only one set of code
that processes the loop exit criteria, and simplifies the unlocking
of all the items from different points in the loop. It also fixes a
double increment of the restart counter from the qi_dqlist_lock
case.

Reported-by: Malcolm Scott <lkml@malc.org.uk>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
13 years agoxfs: handle CIl transaction commit failures correctly
Dave Chinner [Thu, 27 Jan 2011 02:23:28 +0000 (13:23 +1100)]
xfs: handle CIl transaction commit failures correctly

Failure to commit a transaction into the CIL is not handled
correctly. This currently can only happen when racing with a
shutdown and requires an explicit shutdown check, so it rare and can
be avoided. Remove the shutdown check and make the CIL commit a void
function to indicate it will always succeed, thereby removing the
incorrectly handled failure case.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
13 years agoxfs: limit extsize to size of AGs and/or MAXEXTLEN
Dave Chinner [Thu, 27 Jan 2011 01:18:18 +0000 (12:18 +1100)]
xfs: limit extsize to size of AGs and/or MAXEXTLEN

The extent size hint can be set to larger than an AG. This means
that the alignment process can push the range to be allocated
outside the bounds of the AG, resulting in assert failures or
corrupted bmbt records. Similarly, if the extsize is larger than the
maximum extent size supported, the alignment process will produce
extents that are too large to fit into the bmbt records, resulting
in a different type of assert/corruption failure.

Fix this by limiting extsize at the time іt is set firstly to be
less than MAXEXTLEN, then to be a maximum of half the size of the
AGs in the filesystem for non-realtime inodes. Realtime inodes do
not allocate out of AGs, so don't have to be restricted by the size
of AGs.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
13 years agoxfs: prevent extsize alignment from exceeding maximum extent size
Dave Chinner [Thu, 27 Jan 2011 01:17:58 +0000 (12:17 +1100)]
xfs: prevent extsize alignment from exceeding maximum extent size

When doing delayed allocation, if the allocation size is for a
maximally sized extent, extent size alignment can push it over this
limit. This results in an assert failure in xfs_bmbt_set_allf() as
the extent length is too large to find in the extent record.

Fix this by ensuring that we allow for space that extent size
alignment requires (up to 2 * (extsize -1) blocks as we have to
handle both head and tail alignment) when limiting the maximum size
of the extent.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
13 years agoxfs: limit extent length for allocation to AG size
Dave Chinner [Thu, 27 Jan 2011 01:16:28 +0000 (12:16 +1100)]
xfs: limit extent length for allocation to AG size

Delayed allocation extents can be larger than AGs, so when trying to
convert a large range we may scan every AG inside
xfs_bmap_alloc_nullfb() trying to find an AG with a size larger than
an AG. We should stop when we find the first AG with a maximum
possible allocation size. This causes excessive CPU usage when there
are lots of AGs.

The same problem occurs when doing preallocation of a range larger
than an AG.

Fix the problem by limiting real allocation lengths to the maximum
that an AG can support. This means if we have empty AGs, we'll stop
the search at the first of them. If there are no empty AGs, we'll
still scan them all, but that is a different problem....

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
13 years agoxfs: speculative delayed allocation uses rounddown_power_of_2 badly
Dave Chinner [Thu, 27 Jan 2011 01:14:12 +0000 (12:14 +1100)]
xfs: speculative delayed allocation uses rounddown_power_of_2 badly

rounddown_power_of_2() returns an undefined result when passed a
value of zero. The specualtive delayed allocation code is doing this
when the inode is zero length. Hence occasionally the preallocation
is much, much larger than is necessary (e.g. 8GB for a 270 _byte_
file). Ensure we don't even pass a zero value to this function so
the result of preallocation is always the desired size.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
13 years agoxfs: fix efi item leak on forced shutdown
Dave Chinner [Thu, 27 Jan 2011 01:13:35 +0000 (12:13 +1100)]
xfs: fix efi item leak on forced shutdown

After test 139, kmemleak shows:

unreferenced object 0xffff880078b405d8 (size 400):
  comm "xfs_io", pid 4904, jiffies 4294909383 (age 1186.728s)
  hex dump (first 32 bytes):
    60 c1 17 79 00 88 ff ff 60 c1 17 79 00 88 ff ff  `..y....`..y....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff81afb04d>] kmemleak_alloc+0x2d/0x60
    [<ffffffff8115c6cf>] kmem_cache_alloc+0x13f/0x2b0
    [<ffffffff814aaa97>] kmem_zone_alloc+0x77/0xf0
    [<ffffffff814aab2e>] kmem_zone_zalloc+0x1e/0x50
    [<ffffffff8147cd6b>] xfs_efi_init+0x4b/0xb0
    [<ffffffff814a4ee8>] xfs_trans_get_efi+0x58/0x90
    [<ffffffff81455fab>] xfs_bmap_finish+0x8b/0x1d0
    [<ffffffff814851b4>] xfs_itruncate_finish+0x2c4/0x5d0
    [<ffffffff814a970f>] xfs_setattr+0x8df/0xa70
    [<ffffffff814b5c7b>] xfs_vn_setattr+0x1b/0x20
    [<ffffffff8117dc00>] notify_change+0x170/0x2e0
    [<ffffffff81163bf6>] do_truncate+0x66/0xa0
    [<ffffffff81163d0b>] sys_ftruncate+0xdb/0xe0
    [<ffffffff8103a002>] system_call_fastpath+0x16/0x1b
    [<ffffffffffffffff>] 0xffffffffffffffff

The cause of the leak is that the "remove" parameter of IOP_UNPIN()
is never set when a CIL push is aborted. This means that the EFI
item is never freed if it was in the push being cancelled. The
problem is specific to delayed logging, but has uncovered a couple
of problems with the handling of IOP_UNPIN(remove).

Firstly, we cannot safely call xfs_trans_del_item() from IOP_UNPIN()
in the CIL commit failure path or the iclog write failure path
because for delayed loging we have no transaction context. Hence we
must only call xfs_trans_del_item() if the log item being unpinned
has an active log item descriptor.

Secondly, xfs_trans_uncommit() does not handle log item descriptor
freeing during the traversal of log items on a transaction. It can
reference a freed log item descriptor when unpinning an EFI item.
Hence it needs to use a safe list traversal method to allow items to
be removed from the transaction during IOP_UNPIN().

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
13 years agoDelete zero-length drivers/staging/vme/bridges/Module.symvers
Jeff Garzik [Fri, 28 Jan 2011 08:23:42 +0000 (03:23 -0500)]
Delete zero-length drivers/staging/vme/bridges/Module.symvers

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
13 years agolibata: set queue DMA alignment to sector size for ATAPI too
Tejun Heo [Thu, 20 Jan 2011 12:59:06 +0000 (13:59 +0100)]
libata: set queue DMA alignment to sector size for ATAPI too

ata_pio_sectors() expects buffer for each sector to be contained in a
single page; otherwise, it ends up overrunning the first page.  This
is achieved by setting queue DMA alignment.  If sector_size is smaller
than PAGE_SIZE and all buffers are sector_size aligned, buffer for
each sector is always contained in a single page.

This wasn't applied to ATAPI devices but IDENTIFY_PACKET is executed
as ATA_PROT_PIO and thus uses ata_pio_sectors().  Newer versions of
udev issue IDENTIFY_PACKET with unaligned buffer triggering the
problem and causing oops.

This patch fixes the problem by setting sdev->sector_size to
ATA_SECT_SIZE on ATATPI devices and always setting DMA alignment to
sector_size.  While at it, add a warning for the unlikely but still
possible scenario where sector_size is larger than PAGE_SIZE, in which
case the alignment wouldn't be enough.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: John Stanley <jpsinthemix@verizon.net>
Tested-by: John Stanley <jpsinthemix@verizon.net>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
13 years agolibata: DVR-212D can't do SETXFER DVD-RW DVR-212D
Francesco Antonacci [Tue, 25 Jan 2011 10:54:43 +0000 (11:54 +0100)]
libata: DVR-212D can't do SETXFER DVD-RW DVR-212D

PIONEER DVR-212D can't do SETXFER like its sibling DVRTD08.  Add
ATA_HORKAGE_NOSETXFER for it.  Reported in bko#27502.

  https://bugzilla.kernel.org/show_bug.cgi?id=27502

Signed-off-by: Francesco Antonacci <fraanto@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
13 years agoahci: add HFLAG_YES_FBS and apply it to 88SE9128
Anssi Hannula [Wed, 19 Jan 2011 01:03:26 +0000 (20:03 -0500)]
ahci: add HFLAG_YES_FBS and apply it to 88SE9128

Commit 5f173107ecad83a50 added HFLAG_YES_FBS workaround for 88SE9128
(1b4b:9123).

However, that change inadvertently caused the legacy IDE interface of
the controller (with the same pci id) to become associated with the AHCI
driver as well, causing the driver to try to bring the interface up in
vain.

Fix that by matching against class as well.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
13 years agopata_hpt37x: inherit prereset() method for HPT374
Sergei Shtylyov [Tue, 11 Jan 2011 18:01:23 +0000 (21:01 +0300)]
pata_hpt37x: inherit prereset() method for HPT374

Commit ab81a505ae6be069be5b67acd7e1bab3cfb53968 (pata_hpt37x: unify ->pre_reset
methods) neglected to remove the initializer for the prereset() method from
'hpt374_fn1_port_ops' (it's inherited from 'hpt372_port_ops' anyway), as well
as to update the comment in hpt37x_init_one()...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
13 years agoahci: AHCI mode SATA patch for Intel DH89xxCC DeviceIDs
Seth Heasley [Mon, 10 Jan 2011 20:57:17 +0000 (12:57 -0800)]
ahci: AHCI mode SATA patch for Intel DH89xxCC DeviceIDs

This patch adds the AHCI-mode SATA DeviceID for the Intel DH89xxCC PCH.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
13 years agopata_hpt37x: fold 'if' statement into 'switch'
Sergei Shtylyov [Mon, 10 Jan 2011 19:31:13 +0000 (22:31 +0300)]
pata_hpt37x: fold 'if' statement into 'switch'

hpt37x_init_one() has a large *if* statement which should really be folded into
the *switch* statement that currently constitutes its *else* branch, reducing
one level of indentation...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
13 years agopata_hpt{37x|3x2n}: use pr_*(DRV_NAME ...) instead of printk(KERN_* ...)
Sergei Shtylyov [Mon, 10 Jan 2011 18:39:34 +0000 (21:39 +0300)]
pata_hpt{37x|3x2n}: use pr_*(DRV_NAME ...) instead of printk(KERN_* ...)

... the same as the 'pata_hpt366' driver does.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
13 years agopata_hpt{366|37x}: use pr_warning(...) instead of printk(KERN_WARNING ...)
Sergei Shtylyov [Mon, 10 Jan 2011 18:34:27 +0000 (21:34 +0300)]
pata_hpt{366|37x}: use pr_warning(...) instead of printk(KERN_WARNING ...)

... in hpt_dma_blacklisted().

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
13 years agopata_mpc52xx: inherit from ata_bmdma_port_ops
Tejun Heo [Sun, 9 Jan 2011 22:48:20 +0000 (17:48 -0500)]
pata_mpc52xx: inherit from ata_bmdma_port_ops

pata_mpc52xx supports BMDMA but inherits ata_sff_port_ops which
triggers BUG_ON() when a DMA command is issued.  Fix it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Roman Fietze <roman.fietze@telemotive.de>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
13 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Fri, 28 Jan 2011 07:25:43 +0000 (08:25 +0100)]
Merge branch 'fix/asoc' into for-linus

13 years agoMerge branch 'stable/bug-fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 28 Jan 2011 02:24:34 +0000 (12:24 +1000)]
Merge branch 'stable/bug-fixes-rc2' of git://git./linux/kernel/git/konrad/xen

* 'stable/bug-fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/setup: Route halt operations to safe_halt pvop.
  xen/e820: Guard against E820_RAM not having page-aligned size or start.
  xen/p2m: Mark INVALID_P2M_ENTRY the mfn_list past max_pfn.

13 years agoExport the augmented rbtree helper functions
Andreas Gruenbacher [Wed, 26 Jan 2011 14:55:36 +0000 (15:55 +0100)]
Export the augmented rbtree helper functions

The augmented rbtree helper functions are not exported to modules right
now.

(We have started using augmented rbtrees in the upcoming version of
drbd.)

Signed-off-by: Andreas Gruenbacher <agruen@linbit.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Fri, 28 Jan 2011 02:12:58 +0000 (12:12 +1000)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: avoid picking MDS that is not active
  ceph: avoid immediate cap check after import
  ceph: fix flushing of caps vs cap import
  ceph: fix erroneous cap flush to non-auth mds
  ceph: fix cap_wanted_delay_{min,max} mount option initialization
  ceph: fix xattr rbtree search
  ceph: fix getattr on directory when using norbytes

13 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Fri, 28 Jan 2011 02:10:13 +0000 (12:10 +1000)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/nv50: fix regression on IGPs
  drm/radeon/kms: re-emit full context state for evergreen blits
  drm/radeon/kms: release CMASK access in preclose_kms
  drm/radeon/kms: fix r6xx+ scanout on BE systems
  drm/radeon/kms: clean up some magic numbers
  drm/radeon/kms: only enable HDMI mode if radeon audio is enabled
  radeon/kms: fix dp displayport mode validation
  drm/nvc0/grctx: correct an off-by-one
  drm/nv50: Fix race with PFIFO during PGRAPH context destruction.
  drm/nouveau: Workaround incorrect DCB entry on a GeForce3 Ti 200.
  drm/nvc0: implement irq handler for whatever's at 0x14xxxx
  drm/nvc0: fix incorrect TPC register setup
  drm/nouveau: probe for adt7473 before f75375
  drm/nouveau: remove dead function definition

13 years agoMerge branch 'drm-nouveau-next' of git://git.freedesktop.org/git/nouveau/linux-2...
Dave Airlie [Fri, 28 Jan 2011 01:12:53 +0000 (11:12 +1000)]
Merge branch 'drm-nouveau-next' of git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes

* 'drm-nouveau-next' of git://git.freedesktop.org/git/nouveau/linux-2.6:
  drm/nv50: fix regression on IGPs

13 years agodrm/nv50: fix regression on IGPs
Ben Skeggs [Thu, 27 Jan 2011 00:42:50 +0000 (10:42 +1000)]
drm/nv50: fix regression on IGPs

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
13 years agodrm/radeon/kms: re-emit full context state for evergreen blits
Alex Deucher [Thu, 27 Jan 2011 22:01:52 +0000 (17:01 -0500)]
drm/radeon/kms: re-emit full context state for evergreen blits

clear state doesn't seem to work properly in some cases

Fixes hangs in heavy 3D on some evergreen cards reported on
IRC.

May fix:
https://bugs.freedesktop.org/show_bug.cgi?id=33381
possibly others.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@gmail.com>
13 years agodrm/radeon/kms: release CMASK access in preclose_kms
Marek Olšák [Thu, 27 Jan 2011 21:46:15 +0000 (22:46 +0100)]
drm/radeon/kms: release CMASK access in preclose_kms

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
13 years agoarch/arm/mach-omap2/dma.c: Convert IS_ERR result to PTR_ERR
Julia Lawall [Thu, 27 Jan 2011 15:49:06 +0000 (15:49 +0000)]
arch/arm/mach-omap2/dma.c: Convert IS_ERR result to PTR_ERR

This code elsewhere returns a negative constant to an indicate an error,
while IS_ERR returns the result of a >= operation.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x;
@@

 if (...) { ...
- return IS_ERR(x);
+ return PTR_ERR(x);
}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoarm: omap2: mux: fix compile warning
Felipe Balbi [Mon, 17 Jan 2011 04:31:18 +0000 (06:31 +0200)]
arm: omap2: mux: fix compile warning

Commit 8419fdbaf2118a0a169441be82f09f7be93a5ca1
(omap2+: Add omap_mux_get_by_name) introduced the following
compile warning:

arch/arm/mach-omap2/mux.c: In function '_omap_mux_get_by_name':
arch/arm/mach-omap2/mux.c:163:17: warning: 'found_mode' may be used
uninitialized in this function

Signed-off-by: Felipe Balbi <balbi@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoomap1: Simplify use of omap_irq_flags
Tony Lindgren [Thu, 27 Jan 2011 23:52:16 +0000 (15:52 -0800)]
omap1: Simplify use of omap_irq_flags

Commit 03a9e5126147c9f92aeba4b34f62b15b625087fb
(omap1: Use asm_irq_flags for entry-macro.S) added support
for multi-omap builds with addition of the omap_irq_flags.

Commit 9f9605c2eda9679e6f63c605cbd9cbf6a9a7f3fa
(omap2+: Fix unused variable warning for omap_irq_base)
simplified omap2+ entry-macro.S by moving omap_irq_flags
out of entry-macro.S.

Simplify omap1 entry-macro.S in a similar way to keep the
code consistent. Based on a similar earlier patch for omap2+
by Russell King <rmk+kernel@arm.linux.org.uk>.

Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoomap2+: Fix unused variable warning for omap_irq_base
Russell King [Fri, 7 Jan 2011 11:57:44 +0000 (11:57 +0000)]
omap2+: Fix unused variable warning for omap_irq_base

Commit 5d190c40100793a6dfc37bf325677c10f3c80edf
(omap2+: Initialize omap_irq_base for entry-macro.S from
platform code) simplified the handling of omap_irq_base
for multi-omap builds. However, this patch also introduced
a build warning for !MULTI_OMAP2 builds:

arch/arm/mach-omap2/io.c: In function 'omap_irq_base_init':
arch/arm/mach-omap2/io.c:322: warning: unused variable 'omap_irq_base'

Fix this by removing the ifdef. Also simplify things further
by moving omap_irq_base out of entry-macro.S.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: 6642/1: mmci: calculate remaining bytes at error correctly
Linus Walleij [Thu, 27 Jan 2011 16:44:34 +0000 (17:44 +0100)]
ARM: 6642/1: mmci: calculate remaining bytes at error correctly

The MMCIDATACNT register contain the number of byte left at error
not the number of words, so loose the << 2 thing. Further if CRC
fails on the first block, we may end up with a negative number
of transferred bytes which is not good, and the formula was in
wrong order.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 27 Jan 2011 20:45:04 +0000 (06:45 +1000)]
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: Use rq->clock_task instead of rq->clock for correctly maintaining load averages
  sched: Fix/remove redundant cfs_rq checks
  sched: Fix sign under-flows in wake_affine

13 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 27 Jan 2011 20:43:41 +0000 (06:43 +1000)]
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:
  percpu, x86: Fix percpu_xchg_op()
  x86: Remove left over system_64.h
  x86-64: Don't use pointer to out-of-scope variable in dump_trace()

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Linus Torvalds [Thu, 27 Jan 2011 20:39:08 +0000 (06:39 +1000)]
Merge branch 'for-linus' of git://git./linux/kernel/git/cjb/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
  mmc: bfin_sdh: fix alloc size for private data
  mmc: sdhci-s3c: add platform_8bit_width() hook
  mmc: jz4740: don't treat NULL clk as an error
  mmc: mmci: don't read command response when invalid
  mmc: ushc: Remove duplicate include of usb.h

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Thu, 27 Jan 2011 20:35:51 +0000 (06:35 +1000)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (43 commits)
  bnx2: Eliminate AER error messages on systems not supporting it
  cnic: Fix big endian bug
  xfrm6: Don't forget to propagate peer into ipsec route.
  tg3: Use new VLAN code
  bonding: update documentation - alternate configuration.
  TCP: fix a bug that triggers large number of TCP RST by mistake
  MAINTAINERS: remove Reinette Chatre as iwlwifi maintainer
  rt2x00: add device id for windy31 usb device
  mac80211: fix a crash in ieee80211_beacon_get_tim on change_interface
  ipv6: Revert 'administrative down' address handling changes.
  textsearch: doc - fix spelling in lib/textsearch.c.
  USB NET KL5KUSB101: Fix mem leak in error path of kaweth_download_firmware()
  pch_gbe: don't use flush_scheduled_work()
  bnx2: Always set ETH_FLAG_TXVLAN
  net: clear heap allocation for ethtool_get_regs()
  ipv6: Always clone offlink routes.
  dcbnl: make get_app handling symmetric for IEEE and CEE DCBx
  tcp: fix bug in listening_get_next()
  inetpeer: Use correct AVL tree base pointer in inet_getpeer().
  GRO: fix merging a paged skb after non-paged skbs
  ...

13 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groec...
Linus Torvalds [Thu, 27 Jan 2011 20:34:19 +0000 (06:34 +1000)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/staging

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
  hwmon: (lis3) turn down the no IRQ message
  hwmon: (asus_atk0110) Override interface detection on Sabertooth X58
  hwmon: (applesmc) Properly initialize lockdep attributes

13 years agoMerge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspe...
Linus Torvalds [Thu, 27 Jan 2011 20:32:49 +0000 (06:32 +1000)]
Merge branch 'pm-fixes' of git://git./linux/kernel/git/rafael/suspend-2.6

* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PM / Runtime: Don't enable interrupts while running in_interrupt

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt...
Linus Torvalds [Thu, 27 Jan 2011 20:32:05 +0000 (06:32 +1000)]
Merge branch 'for-linus' of git://git./linux/kernel/git/egtvedt/avr32-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/avr32-2.6:
  avr32: add missing include causing undefined pgtable_page_* references

13 years agocifs: More crypto cleanup (try #2)
Shirish Pargaonkar [Thu, 27 Jan 2011 15:58:04 +0000 (09:58 -0600)]
cifs: More crypto cleanup (try #2)

Replaced md4 hashing function local to cifs module with kernel crypto APIs.
As a result, md4 hashing function and its supporting functions in
file md4.c are not needed anymore.

Cleaned up function declarations, removed forward function declarations,
and removed a header file that is being deleted from being included.

Verified that sec=ntlm/i, sec=ntlmv2/i, and sec=ntlmssp/i work correctly.

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years agokmemleak: Allow kmemleak metadata allocations to fail
Catalin Marinas [Thu, 27 Jan 2011 10:30:26 +0000 (10:30 +0000)]
kmemleak: Allow kmemleak metadata allocations to fail

This patch adds __GFP_NORETRY and __GFP_NOMEMALLOC flags to the kmemleak
metadata allocations so that it has a smaller effect on the users of the
kernel slab allocator. Since kmemleak allocations can now fail more
often, this patch also reduces the verbosity by passing __GFP_NOWARN and
not dumping the stack trace when a kmemleak allocation fails.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Ted Ts'o <tytso@mit.edu>
13 years agokmemleak: remove memset by using kzalloc
Jesper Juhl [Sat, 30 Oct 2010 21:43:05 +0000 (23:43 +0200)]
kmemleak: remove memset by using kzalloc

We don't need to memset if we just use kzalloc() rather than kmalloc() in
kmemleak_test_init().

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
13 years agoxen/setup: Route halt operations to safe_halt pvop.
Stefano Stabellini [Wed, 26 Jan 2011 17:07:27 +0000 (17:07 +0000)]
xen/setup: Route halt operations to safe_halt pvop.

With this patch, the cpuidle driver does not load and
does not issue the mwait operations. Instead the hypervisor
is doing them (b/c we call the safe_halt pvops call).

This fixes quite a lot of bootup issues wherein the user had
to force interrupts for the continuation of the bootup.

Details are discussed in:

http://lists.xensource.com/archives/html/xen-devel/2011-01/msg00535.html

[v2: Wrote the commit description]

Reported-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Tested-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>