kernel.git
10 years agoMerge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 5 May 2009 19:08:02 +0000 (12:08 -0700)]
Merge branch 'tracing-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tracing: x86, mmiotrace: fix range test
  tracing: fix ref count in splice pages

10 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 5 May 2009 19:07:21 +0000 (12:07 -0700)]
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: show number of core_siblings instead of thread_siblings in /proc/cpuinfo
  amd-iommu: fix iommu flag masks
  x86: initialize io_bitmap_base on 32bit
  x86: gettimeofday() vDSO: fix segfault when tv == NULL

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
Linus Torvalds [Tue, 5 May 2009 19:06:54 +0000 (12:06 -0700)]
Merge git://git./linux/kernel/git/sam/kbuild-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild, modpost: fix unexpected non-allocatable warning with mips
  kbuild, modpost: fix "unexpected non-allocatable" warning with SUSE gcc
  kbuild, modpost: fix unexpected non-allocatable section when cross compiling

10 years agoMerge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
Linus Torvalds [Tue, 5 May 2009 15:27:14 +0000 (08:27 -0700)]
Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c-algo-pca: Let PCA9564 recover from unacked data byte (state 0x30)
  i2c-algo-bit: Fix timeout test
  i2c: Timeouts off by 1

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Tue, 5 May 2009 15:26:10 +0000 (08:26 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (30 commits)
  e1000: fix virtualization bug
  bonding: fix alb mode locking regression
  Bluetooth: Fix issue with sysfs handling for connections
  usbnet: CDC EEM support (v5)
  tcp: Fix tcp_prequeue() to get correct rto_min value
  ehea: fix invalid pointer access
  ne2k-pci: Do not register device until initialized.
  Subject: [PATCH] br2684: restore net_dev initialization
  net: Only store high 16 bits of kernel generated filter priorities
  virtio_net: Fix function name typo
  virtio_net: Cleanup command queue scatterlist usage
  bonding: correct the cleanup in bond_create()
  virtio: add missing include to virtio_net.h
  smsc95xx: add support for LAN9512 and LAN9514
  smsc95xx: configure LED outputs
  netconsole: take care of NETDEV_UNREGISTER event
  xt_socket: checks for the state of nf_conntrack
  bonding: bond_slave_info_query() fix
  cxgb3: fixing gcc 4.4 compiler warning: suggest parentheses around operand of ‘!’
  netfilter: use likely() in xt_info_rdlock_bh()
  ...

10 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Tue, 5 May 2009 15:25:37 +0000 (08:25 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix setting of oprofile cpu type
  powerpc: Update MPC5xxx and Xilinx Virtex maintainer entries
  powerpc adjust oprofile_cpu_type version 3

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Tue, 5 May 2009 15:24:41 +0000 (08:24 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  selinux: Fix send_sigiotask hook

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh...
Linus Torvalds [Tue, 5 May 2009 15:23:42 +0000 (08:23 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  net/9p: handle correctly interrupted 9P requests
  net/9p: return error when p9_client_stat fails
  net/9p: set correct stat size when sending Twstat messages

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
Linus Torvalds [Tue, 5 May 2009 15:23:16 +0000 (08:23 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  mvsdio: fix CONFIG_PM=y build
  mmci: fix crash with debug enabled
  sdhci: catch ADMA errors
  mmc: increase power up delay
  sdhci-pci: bad error handling in probe function
  mmc_block: be prepared for oversized requests

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Tue, 5 May 2009 15:22:55 +0000 (08:22 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ASoC: Remove BROKEN from mpc5200 kconfig
  ASoC: TWL4030: Fix gain control for earpiece amplifier
  ALSA: pcm core - Avoid jiffies check for devices with BATCH flag
  ALSA: Add missing SNDRV_PCM_INFO_BATCH flag to some drivers
  ALSA: indigo-express: add missing 64KHz flags
  ASoC: Set the MPC5200 i2s driver to BROKEN status.
  ASoC: Fix logic in WM8350 master clocking check

10 years agoi2c-algo-pca: Let PCA9564 recover from unacked data byte (state 0x30)
Enrik Berkhan [Tue, 5 May 2009 06:39:25 +0000 (08:39 +0200)]
i2c-algo-pca: Let PCA9564 recover from unacked data byte (state 0x30)

Currently, the i2c-algo-pca driver does nothing if the chip enters state
0x30 (Data byte in I2CDAT has been transmitted; NOT ACK has been
received).  Thus, the i2c bus connected to the controller gets stuck
afterwards.

I have seen this kind of error on a custom board in certain load
situations most probably caused by interference or noise.

A possible reaction is to let the controller generate a STOP condition.
This is documented in the PCA9564 data sheet (2006-09-01) and the same
is done for other NACK states as well.

Further, state 0x38 isn't handled completely, either. Try to do another
START in this case like the data sheet says. As this couldn't be tested,
I've added a comment to try to reset the chip if the START doesn't help
as suggested by Wolfram Sang.

Signed-off-by: Enrik Berkhan <Enrik.Berkhan@ge.com>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
10 years agoi2c-algo-bit: Fix timeout test
Dave Airlie [Tue, 5 May 2009 06:39:24 +0000 (08:39 +0200)]
i2c-algo-bit: Fix timeout test

When fetching DDC using i2c algo bit, we were often seeing timeouts
before getting valid EDID on a retry. The VESA spec states 2ms is the
DDC timeout, so when this translates into 1 jiffie and we are close
to the end of the time period, it could return with a timeout less than
2ms.

Change this code to use time_after instead of time_after_eq.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
10 years agoi2c: Timeouts off by 1
Roel Kluin [Tue, 5 May 2009 06:39:24 +0000 (08:39 +0200)]
i2c: Timeouts off by 1

with while (timeout++ < MAX_TIMEOUT); timeout reaches MAX_TIMEOUT + 1
after the loop, so the tests below are off by one.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluet...
David S. Miller [Tue, 5 May 2009 04:31:29 +0000 (21:31 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/holtmann/bluetooth-2.6

10 years agoe1000: fix virtualization bug
Jesse Brandeburg [Mon, 4 May 2009 11:19:42 +0000 (11:19 +0000)]
e1000: fix virtualization bug

a recent fix to e1000 (commit 15b2bee2) caused KVM/QEMU/VMware based
virtualized e1000 interfaces to begin failing when resetting.

This is because the driver in a virtual environment doesn't
get to run instructions *AT ALL* when an interrupt is asserted.
The interrupt code runs immediately and this recent bug fix
allows an interrupt to be possible when the interrupt handler
will reject it (due to the new code), when being called from
any path in the driver that holds the E1000_RESETTING flag.

the driver should use the __E1000_DOWN flag instead of the
__E1000_RESETTING flag to prevent interrupt execution
while reconfiguring the hardware.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobonding: fix alb mode locking regression
Jay Vosburgh [Mon, 4 May 2009 09:03:37 +0000 (09:03 +0000)]
bonding: fix alb mode locking regression

Fix locking issue in alb MAC address management; removed
incorrect locking and replaced with correct locking.  This bug was
introduced in commit 059fe7a578fba5bbb0fdc0365bfcf6218fa25eb0
("bonding: Convert locks to _bh, rework alb locking for new locking")

Bug reported by Paul Smith <paul@mad-scientist.net>, who also
tested the fix.

Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoselinux: Fix send_sigiotask hook
Stephen Smalley [Mon, 4 May 2009 19:43:18 +0000 (15:43 -0400)]
selinux: Fix send_sigiotask hook

The CRED patch incorrectly converted the SELinux send_sigiotask hook to
use the current task SID rather than the target task SID in its
permission check, yielding the wrong permission check.  This fixes the
hook function.  Detected by the ltp selinux testsuite and confirmed to
correct the test failure.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
10 years agoproc: avoid information leaks to non-privileged processes
Jake Edge [Mon, 4 May 2009 18:51:14 +0000 (12:51 -0600)]
proc: avoid information leaks to non-privileged processes

By using the same test as is used for /proc/pid/maps and /proc/pid/smaps,
only allow processes that can ptrace() a given process to see information
that might be used to bypass address space layout randomization (ASLR).
These include eip, esp, wchan, and start_stack in /proc/pid/stat as well
as the non-symbolic output from /proc/pid/wchan.

ASLR can be bypassed by sampling eip as shown by the proof-of-concept
code at http://code.google.com/p/fuzzyaslr/ As part of a presentation
(http://www.cr0.org/paper/to-jt-linux-alsr-leak.pdf) esp and wchan were
also noted as possibly usable information leaks as well.  The
start_stack address also leaks potentially useful information.

Cc: Stable Team <stable@kernel.org>
Signed-off-by: Jake Edge <jake@lwn.net>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoBluetooth: Fix issue with sysfs handling for connections
Marcel Holtmann [Sun, 3 May 2009 01:24:06 +0000 (18:24 -0700)]
Bluetooth: Fix issue with sysfs handling for connections

Due to a semantic changes in flush_workqueue() the current approach of
synchronizing the sysfs handling for connections doesn't work anymore. The
whole approach is actually fully broken and based on assumptions that are
no longer valid.

With the introduction of Simple Pairing support, the creation of low-level
ACL links got changed. This change invalidates the reason why in the past
two independent work queues have been used for adding/removing sysfs
devices. The adding of the actual sysfs device is now postponed until the
host controller successfully assigns an unique handle to that link. So
the real synchronization happens inside the controller and not the host.

The only left-over problem is that some internals of the sysfs device
handling are not initialized ahead of time. This leaves potential access
to invalid data and can cause various NULL pointer dereferences. To fix
this a new function makes sure that all sysfs details are initialized
when an connection attempt is made. The actual sysfs device is only
registered when the connection has been successfully established. To
avoid a race condition with the registration, the check if a device is
registered has been moved into the removal work.

As an extra protection two flush_work() calls are left in place to
make sure a previous add/del work has been completed first.

Based on a report by Marc Pignat <marc.pignat@hevs.ch>

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Tested-by: Justin P. Mattock <justinmattock@gmail.com>
Tested-by: Roger Quadros <ext-roger.quadros@nokia.com>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
10 years agousbnet: CDC EEM support (v5)
Omar Laazimani [Mon, 4 May 2009 19:01:43 +0000 (12:01 -0700)]
usbnet: CDC EEM support (v5)

This introduces a CDC Ethernet Emulation Model (EEM) host side
driver to support USB EEM devices.

EEM is different from the Ethernet Control Model (ECM) currently
supported by the "CDC Ethernet" driver.  One key difference is
that it doesn't require of USB interface alternate settings to
manage interface state; some maldesigned hardware can't handle
that part of USB.  It also avoids a separate USB interface for
control and status updates.

[ dbrownell@users.sourceforge.net: fix skb leaks, add rx packet
checks, improve fault handling, EEM conformance updates, cleanup ]

Signed-off-by: Omar Laazimani <omar.oberthur@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agox86: show number of core_siblings instead of thread_siblings in /proc/cpuinfo
Andreas Herrmann [Mon, 4 May 2009 18:28:59 +0000 (20:28 +0200)]
x86: show number of core_siblings instead of thread_siblings in /proc/cpuinfo

Commit 7ad728f98162cb1af06a85b2a5fc422dddd4fb78
(cpumask: x86: convert cpu_sibling_map/cpu_core_map to cpumask_var_t)
changed the output of /proc/cpuinfo for siblings:

Example on an AMD Phenom:

  physical id   : 0
  siblings : 1
  core id    : 3
  cpu cores  : 4

Before that commit it was:

  physical id : 0
  siblings : 4
  core id    : 3
  cpu cores  : 4

Instead of cpu_core_mask it now uses cpu_sibling_mask to count siblings.
This is due to the following hunk of above commit:

|  --- a/arch/x86/kernel/cpu/proc.c
|  +++ b/arch/x86/kernel/cpu/proc.c
|  @@ -14,7 +14,7 @@ static void show_cpuinfo_core(struct seq_file *m, struct cpuinf
|          if (c->x86_max_cores * smp_num_siblings > 1) {
|                  seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
|                  seq_printf(m, "siblings\t: %d\n",
|  -                          cpus_weight(per_cpu(cpu_core_map, cpu)));
|  +                          cpumask_weight(cpu_sibling_mask(cpu)));
|                  seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
|                  seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
|                  seq_printf(m, "apicid\t\t: %d\n", c->apicid);

This was a mistake, because the impact line shows that this side-effect
was not anticipated:

   Impact: reduce per-cpu size for CONFIG_CPUMASK_OFFSTACK=y

So revert the respective hunk to restore the old behavior.

[ Impact: fix sibling-info regression in /proc/cpuinfo ]

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
LKML-Reference: <20090504182859.GA29045@alberich.amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
10 years agotcp: Fix tcp_prequeue() to get correct rto_min value
Satoru SATOH [Mon, 4 May 2009 18:11:01 +0000 (11:11 -0700)]
tcp: Fix tcp_prequeue() to get correct rto_min value

tcp_prequeue() refers to the constant value (TCP_RTO_MIN) regardless of
the actual value might be tuned. The following patches fix this and make
tcp_prequeue get the actual value returns from tcp_rto_min().

Signed-off-by: Satoru SATOH <satoru.satoh@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoehea: fix invalid pointer access
Hannes Hering [Mon, 4 May 2009 18:06:37 +0000 (11:06 -0700)]
ehea: fix invalid pointer access

This patch fixes an invalid pointer access in case the receive queue
holds no pointer to the next skb when the queue is empty.

Signed-off-by: Hannes Hering <hering2@de.ibm.com>
Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Mon, 4 May 2009 14:06:58 +0000 (16:06 +0200)]
Merge branch 'fix/misc' into for-linus

* fix/misc:
  ALSA: indigo-express: add missing 64KHz flags

10 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Mon, 4 May 2009 14:06:43 +0000 (16:06 +0200)]
Merge branch 'fix/asoc' into for-linus

* fix/asoc:
  ASoC: Remove BROKEN from mpc5200 kconfig
  ASoC: TWL4030: Fix gain control for earpiece amplifier
  ASoC: Set the MPC5200 i2s driver to BROKEN status.
  ASoC: Fix logic in WM8350 master clocking check

10 years agoMerge branch 'fix/pcm-jiffies-check' into for-linus
Takashi Iwai [Mon, 4 May 2009 14:06:37 +0000 (16:06 +0200)]
Merge branch 'fix/pcm-jiffies-check' into for-linus

* fix/pcm-jiffies-check:
  ALSA: pcm core - Avoid jiffies check for devices with BATCH flag
  ALSA: Add missing SNDRV_PCM_INFO_BATCH flag to some drivers

10 years agoASoC: Remove BROKEN from mpc5200 kconfig
Takashi Iwai [Mon, 4 May 2009 14:03:21 +0000 (16:03 +0200)]
ASoC: Remove BROKEN from mpc5200 kconfig

The regression was fixed by commit
3e5b50165fd0be080044586f43fcdd460ed27610, so no need to mark this
driver as BROKEN.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
10 years agoMerge branch 'fix/pcm-jiffies-check' into fix/asoc
Takashi Iwai [Mon, 4 May 2009 14:00:16 +0000 (16:00 +0200)]
Merge branch 'fix/pcm-jiffies-check' into fix/asoc

10 years agoamd-iommu: fix iommu flag masks
Joerg Roedel [Mon, 4 May 2009 09:44:38 +0000 (11:44 +0200)]
amd-iommu: fix iommu flag masks

The feature bits should be set via bitmasks, not via feature IDs.

[ Impact: fix feature enabling in newer IOMMU versions ]

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
LKML-Reference: <20090504102028.GA30307@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
10 years agokbuild, modpost: fix unexpected non-allocatable warning with mips
Sam Ravnborg [Mon, 4 May 2009 11:05:26 +0000 (13:05 +0200)]
kbuild, modpost: fix unexpected non-allocatable warning with mips

mips emit the following debug sections:
.mdebug* and .pdr

They were included in the check for non-allocatable section
and caused modpost to warn.

Manuel Lauss suggested to fix this by adding the relevant
sections to the list of sections we do not check.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reported-by: Manuel Lauss <mano@roarinelk.homelinux.net>
10 years agokbuild, modpost: fix "unexpected non-allocatable" warning with SUSE gcc
Sam Ravnborg [Sun, 3 May 2009 20:17:37 +0000 (22:17 +0200)]
kbuild, modpost: fix "unexpected non-allocatable" warning with SUSE gcc

Jean reported that he saw one warning for each module like the one below:
WARNING: arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.o (.comment.SUSE.OPTs): unexpected non-allocatable section.

The warning appeared with the improved version of the
check of the flags in the sections.

That check already ignored sections named ".comment" - but SUSE store
additional info in the comment section and has named it in a SUSE
specific way. Therefore modpost failed to ignore the section.

The fix is to extend the pattern so we ignore all sections
that start with the name ".comment.".

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reported-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Jean Delvare <khali@linux-fr.org>
10 years agokbuild, modpost: fix unexpected non-allocatable section when cross compiling
Anders Kaseorg [Sun, 3 May 2009 20:02:55 +0000 (22:02 +0200)]
kbuild, modpost: fix unexpected non-allocatable section when cross compiling

The missing TO_NATIVE(sechdrs[i].sh_flags) was causing many
unexpected non-allocatable section warnings when cross-compiling
for an architecture with a different endianness.

Fix endianness of all the fields in the ELF header and
section headers, not just some of them so we are not
hit by this anohter time.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Reported-by: Sean MacLennan <smaclennan@pikatech.com>
Tested-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
10 years agomvsdio: fix CONFIG_PM=y build
Rabin Vincent [Mon, 20 Apr 2009 18:44:54 +0000 (00:14 +0530)]
mvsdio: fix CONFIG_PM=y build

Fix usage of obsolete parameters and functions in the driver's PM
callbacks.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Acked-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
10 years agommci: fix crash with debug enabled
Rabin Vincent [Fri, 17 Apr 2009 03:14:19 +0000 (08:44 +0530)]
mmci: fix crash with debug enabled

If MMC debugging is enabled, the mmci driver oopses because the DBG
macro uses host->mmc before it is set.  Set it earlier.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
10 years agosdhci: catch ADMA errors
Pierre Ossman [Fri, 10 Apr 2009 21:55:42 +0000 (23:55 +0200)]
sdhci: catch ADMA errors

We forgot to add the ADMA error bit to the list of data interrupts.

Signed-off-by: Pierre Ossman <pierre@ossman.eu>
10 years agommc: increase power up delay
José M. Fernández [Tue, 10 Mar 2009 01:21:21 +0000 (02:21 +0100)]
mmc: increase power up delay

The TI controller on Toshiba Tecra M5 needs more time to power up or
the cards will init incorrectly or not at all.

Signed-off-by: José M. Fernández <josemariafg@gmail.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
10 years agosdhci-pci: bad error handling in probe function
Dan Carpenter [Fri, 10 Apr 2009 21:31:10 +0000 (23:31 +0200)]
sdhci-pci: bad error handling in probe function

The goto unmap is too early, we haven't allocated host or done the
request_region().

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

[ Second error path fix by Pierre Ossman ]

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
10 years agommc_block: be prepared for oversized requests
Pierre Ossman [Fri, 10 Apr 2009 15:52:57 +0000 (17:52 +0200)]
mmc_block: be prepared for oversized requests

The block layer does not support very low sector count restrictions
so we need to be prepared to handle bigger requests than we can send
directly to the controller.

Problem found by Manuel Lauss.

Signed-off-by: Pierre Ossman <pierre@ossman.eu>
10 years agoNFS: Close page_mkwrite() races
Trond Myklebust [Fri, 24 Apr 2009 21:32:22 +0000 (17:32 -0400)]
NFS: Close page_mkwrite() races

Follow up to Nick Piggin's patches to ensure that nfs_vm_page_mkwrite
returns with the page lock held, and sets the VM_FAULT_LOCKED flag.

See http://bugzilla.kernel.org/show_bug.cgi?id=12913

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Sat, 2 May 2009 23:52:50 +0000 (16:52 -0700)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: fix getbmap vs mmap deadlock
  xfs: a couple getbmap cleanups
  xfs: add more checks to superblock validation
  xfs_file_last_byte() needs to acquire ilock

10 years agoMove dtc and libfdt sources from arch/powerpc/boot to scripts/dtc
David Gibson [Thu, 30 Apr 2009 05:25:53 +0000 (15:25 +1000)]
Move dtc and libfdt sources from arch/powerpc/boot to scripts/dtc

The powerpc kernel always requires an Open Firmware like device tree
to supply device information.  On systems without OF, this comes from
a flattened device tree blob.  This blob is usually generated by dtc,
a tool which compiles a text description of the device tree into the
flattened format used by the kernel.  Sometimes, the bootwrapper makes
small changes to the pre-compiled device tree blob (e.g. filling in
the size of RAM).  To do this it uses the libfdt library.

Because these are only used on powerpc, the code for both these tools
is included under arch/powerpc/boot (these were imported and are
periodically updated from the upstream dtc tree).

However, the microblaze architecture, currently being prepared for
merging to mainline also uses dtc to produce device tree blobs.  A few
other archs have also mentioned some interest in using dtc.
Therefore, this patch moves dtc and libfdt from arch/powerpc into
scripts, where it can be used by any architecture.

The vast bulk of this patch is a literal move, the rest is adjusting
the various Makefiles to use dtc and libfdt correctly from their new
locations.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec...
Linus Torvalds [Sat, 2 May 2009 23:50:46 +0000 (16:50 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jlbec/configfs

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/configfs:
  configfs: Fix Trivial Warning in fs/configfs/symlink.c

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Sat, 2 May 2009 23:48:32 +0000 (16:48 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bart/ide-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  ide-cd: fix REQ_QUIET tests in cdrom_decode_status

Fix up trivial conflicts in include/linux/blkdev.h

10 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Sat, 2 May 2009 23:40:20 +0000 (16:40 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm: (45 commits)
  [ARM] 5489/1: ARM errata: Data written to the L2 cache can be overwritten with stale data
  [ARM] 5490/1: ARM errata: Processor deadlock when a false hazard is created
  [ARM] 5487/1: ARM errata: Stale prediction on replaced interworking branch
  [ARM] 5488/1: ARM errata: Invalidation of the Instruction Cache operation can fail
  davinci: DM644x: NAND: update partitioning
  davinci: update DM644x support in preparation for more SoCs
  davinci: DM644x: rename board file
  davinci: update pin-multiplexing support
  davinci: serial: generalize for more SoCs
  davinci: DM355 IRQ Definitions
  davinci: DM646x: add interrupt number and priorities
  davinci: PSC: Clear bits in MDCTL reg before setting new bits
  davinci: gpio bugfixes
  davinci: add EDMA driver
  davinci: timers: use clk_get_rate()
  [ARM] pxa/littleton: add missing da9034 touchscreen support
  [ARM] pxa/zylonite: configure GPIO18/19 correctly, used by 2 GPIO expanders
  [ARM] pxa/zylonite: fix the issue of unused SDATA_IN_1 pin get AC97 not working
  [ARM] pxa: make ads7846 on corgi and spitz to sync on HSYNC
  [ARM] pxa: remove unused CPU_FREQ_PXA Kconfig symbol
  ...

10 years agoMerge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 2 May 2009 23:38:30 +0000 (16:38 -0700)]
Merge branch 'x86-mce-for-linus' of git://git./linux/kernel/git/x86/linux-2.6-tip

* 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip:
  x86, mce: fix boot logging logic
  x86, mce: make polling timer interval per CPU

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
Linus Torvalds [Sat, 2 May 2009 23:36:34 +0000 (16:36 -0700)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (53 commits)
  [SCSI] libosd: OSD2r05: on-the-wire changes for latest OSD2 revision 5.
  [SCSI] libosd: OSD2r05: OSD_CRYPTO_KEYID_SIZE will grow 20 => 32 bytes
  [SCSI] libosd: OSD2r05: Prepare for rev5 attribute list changes
  [SCSI] libosd: fix potential ERR_PTR dereference in osd_initiator.c
  [SCSI] mpt2sas : bump driver version to 01.100.02.00
  [SCSI] mpt2sas: fix hotplug event processing
  [SCSI] mpt2sas : release diagnotic buffers prior host reset
  [SCSI] mpt2sas : Broadcast Primative AEN bug fix
  [SCSI] mpt2sas : Identify Dell series-7 adapters at driver load time
  [SCSI] mpt2sas : driver name needs to be in the MPT2IOCINFO ioctl
  [SCSI] mpt2sas : running out of message frames
  [SCSI] mpt2sas : fix oops when firmware sends large sense buffer size
  [SCSI] mpt2sas : the sanity check in base_interrupt needs to be on dword boundary
  [SCSI] mpt2sas : unique ioctl magic number
  [SCSI] fix sign extension with 1.5TB usb-storage LBD=y
  [SCSI] ipr: Fix sleeping function called with interrupts disabled
  [SCSI] fcoe: fip: add multicast filter to receive FIP advertisements.
  [SCSI] libfc: Fix compilation warnings with allmodconfig
  [SCSI] fcoe: fix spelling typos and bad comments
  [SCSI] fcoe: don't export functions that are internal to fcoe
  ...

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Sat, 2 May 2009 23:35:45 +0000 (16:35 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: document the multi-touch (MT) protocol
  Input: add detailed multi-touch finger data report protocol
  Input: allow certain EV_ABS events to bypass all filtering
  Input: bcm5974 - add documentation for the driver
  Input: bcm5974 - augment debug information
  Input: bcm5974 - Add support for the Macbook 5 (Unibody)
  Input: bcm5974 - add quad-finger tapping
  Input: bcm5974 - prepare for a new trackpad header type
  Input: appletouch - fix DMA to/from stack buffer
  Input: wacom - fix TabletPC touch bug
  Input: lifebook - add DMI entry for Fujitsu B-2130
  Input: ALPS - add signature for Toshiba Satellite Pro M10
  Input: elantech - make sure touchpad is really in absolute mode
  Input: elantech - provide a workaround for jumpy cursor on firmware 2.34
  Input: ucb1400 - use disable_irq_nosync() in irq handler
  Input: tsc2007 - use disable_irq_nosync() in irq handler
  Input: sa1111ps2 - use disable_irq_nosync() in irq handlers
  Input: omap-keypad - use disable_irq_nosync() in irq handler

10 years agoSUNRPC: Fix the problem of EADDRNOTAVAIL syslog floods on reconnect
Trond Myklebust [Tue, 21 Apr 2009 21:18:20 +0000 (17:18 -0400)]
SUNRPC: Fix the problem of EADDRNOTAVAIL syslog floods on reconnect

See http://bugzilla.kernel.org/show_bug.cgi?id=13034

If the port gets into a TIME_WAIT state, then we cannot reconnect without
binding to a new port.

Tested-by: Petr Vandrovec <petr@vandrovec.name>
Tested-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild...
Linus Torvalds [Sat, 2 May 2009 23:33:56 +0000 (16:33 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/sam/kbuild-fixes

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild, modpost: Check the section flags, to catch missing "ax"/"aw"
  kbuild: fix comment in modpost.c
  kbuild: fix scripts/setlocalversion with git
  kbuild: fix Module.markers permission error under cygwin
  docs: also clean index.html
  kbuild: remove a tag file before it is regenerated
  kbuild: "make prepare" should be "make modules_prepare"
  kbuild: clean Module.markers and modules.order for out-of-tree modules
  avr32: drop unused CLEAN_FILES

10 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec...
Linus Torvalds [Sat, 2 May 2009 23:30:47 +0000 (16:30 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jlbec/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
  ocfs2: Change repository in MAINTAINERS.
  ocfs2: Fix a missing credit when deleting from indexed directories.
  ocfs2/trivial: Remove unused variable in ocfs2_rename.
  ocfs2: Add missing iput() during error handling in ocfs2_dentry_attach_lock()
  ocfs2: Fix some printk() warnings.
  ocfs2: Fix 2 warning during ocfs2 make.
  ocfs2: Reserve 1 more cluster in expanding_inline_dir for indexed dir.

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Sat, 2 May 2009 23:29:47 +0000 (16:29 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: fix oops in hid_check_keys_pressed()
  HID: fix possible deadlock in usbhid_close()
  HID: Fix the support for apple mini aluminium keyboard
  HID: Add support for the G25 force feedback wheel in native mode
  HID: hidraw -- fix missing unlocks in unlocked_ioctl

10 years agoMerge branch 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev
Linus Torvalds [Sat, 2 May 2009 23:28:58 +0000 (16:28 -0700)]
Merge branch 'for-linus' of git://linux-m32r.org/git/takata/linux-2.6_dev

* 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev:
  m32r: use __stringify() macro in assembler.h
  m32r: build fix for __stringify macro

10 years agoibft: fix the display of a few fields in the NIC attribute structure in sysfs
Ashutosh Naik [Thu, 30 Apr 2009 22:08:58 +0000 (15:08 -0700)]
ibft: fix the display of a few fields in the NIC attribute structure in sysfs

Fix the display of a few fields in the iBFT NIC attribute structure in
sysfs.

Ensure that, if the DHCP IP address and the subnet mask for the interface
is present in the iBFT NIC structure, the corresponding entries are
created in sysfs tree for the device.  This would hence create the
additional entries in the tree based on the iBFT table and would not
delete any existing entries.

Signed-off-by: Ashutosh Naik <ashutosh.naik@gmail.com>
Cc: Vishnu V <vishnu@chelsio.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomm: prevent divide error for small values of vm_dirty_bytes
Andrea Righi [Thu, 30 Apr 2009 22:08:57 +0000 (15:08 -0700)]
mm: prevent divide error for small values of vm_dirty_bytes

Avoid setting less than two pages for vm_dirty_bytes: this is necessary to
avoid potential division by 0 (like the following) in get_dirty_limits().

[   49.951610] divide error: 0000 [#1] PREEMPT SMP
[   49.952195] last sysfs file: /sys/devices/pci0000:00/0000:00:01.1/host0/target0:0:0/0:0:0:0/block/sda/uevent
[   49.952195] CPU 1
[   49.952195] Modules linked in: pcspkr
[   49.952195] Pid: 3064, comm: dd Not tainted 2.6.30-rc3 #1
[   49.952195] RIP: 0010:[<ffffffff802d39a9>]  [<ffffffff802d39a9>] get_dirty_limits+0xe9/0x2c0
[   49.952195] RSP: 0018:ffff88001de03a98  EFLAGS: 00010202
[   49.952195] RAX: 00000000000000c0 RBX: ffff88001de03b80 RCX: 28f5c28f5c28f5c3
[   49.952195] RDX: 0000000000000000 RSI: 00000000000000c0 RDI: 0000000000000000
[   49.952195] RBP: ffff88001de03ae8 R08: 0000000000000000 R09: 0000000000000000
[   49.952195] R10: ffff88001ddda9a0 R11: 0000000000000001 R12: 0000000000000001
[   49.952195] R13: ffff88001fbc8218 R14: ffff88001de03b70 R15: ffff88001de03b78
[   49.952195] FS:  00007fe9a435b6f0(0000) GS:ffff8800025d9000(0000) knlGS:0000000000000000
[   49.952195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.952195] CR2: 00007fe9a39ab000 CR3: 000000001de38000 CR4: 00000000000006e0
[   49.952195] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   49.952195] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   49.952195] Process dd (pid: 3064, threadinfo ffff88001de02000, task ffff88001ddda250)
[   49.952195] Stack:
[   49.952195]  ffff88001fa0de00 ffff88001f2dbd70 ffff88001f9fe800 000080b900000000
[   49.952195]  00000000000000c0 ffff8800027a6100 0000000000000400 ffff88001fbc8218
[   49.952195]  0000000000000000 0000000000000600 ffff88001de03bb8 ffffffff802d3ed7
[   49.952195] Call Trace:
[   49.952195]  [<ffffffff802d3ed7>] balance_dirty_pages_ratelimited_nr+0x1d7/0x3f0
[   49.952195]  [<ffffffff80368f8e>] ? ext3_writeback_write_end+0x9e/0x120
[   49.952195]  [<ffffffff802cc7df>] generic_file_buffered_write+0x12f/0x330
[   49.952195]  [<ffffffff802cce8d>] __generic_file_aio_write_nolock+0x26d/0x460
[   49.952195]  [<ffffffff802cda32>] ? generic_file_aio_write+0x52/0xd0
[   49.952195]  [<ffffffff802cda49>] generic_file_aio_write+0x69/0xd0
[   49.952195]  [<ffffffff80365fa6>] ext3_file_write+0x26/0xc0
[   49.952195]  [<ffffffff803034d1>] do_sync_write+0xf1/0x140
[   49.952195]  [<ffffffff80290d1a>] ? get_lock_stats+0x2a/0x60
[   49.952195]  [<ffffffff80280730>] ? autoremove_wake_function+0x0/0x40
[   49.952195]  [<ffffffff8030411b>] vfs_write+0xcb/0x190
[   49.952195]  [<ffffffff803042d0>] sys_write+0x50/0x90
[   49.952195]  [<ffffffff8022ff6b>] system_call_fastpath+0x16/0x1b
[   49.952195] Code: 00 00 00 2b 05 09 1c 17 01 48 89 c6 49 0f af f4 48 c1 ee 02 48 89 f0 48 f7 e1 48 89 d6 31 d2 48 c1 ee 02 48 0f af 75 d0 48 89 f0 <48> f7 f7 41 8b 95 ac 01 00 00 48 89 c7 49 0f af d4 48 c1 ea 02
[   49.952195] RIP  [<ffffffff802d39a9>] get_dirty_limits+0xe9/0x2c0
[   49.952195]  RSP <ffff88001de03a98>
[   50.096523] ---[ end trace 008d7aa02f244d7b ]---

Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agovmscan: avoid multiplication overflow in shrink_zone()
Andrew Morton [Thu, 30 Apr 2009 22:08:55 +0000 (15:08 -0700)]
vmscan: avoid multiplication overflow in shrink_zone()

Local variable `scan' can overflow on zones which are larger than

(2G * 4k) / 100 = 80GB.

Making it 64-bit on 64-bit will fix that up.

Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoptrace: s/parent/real_parent/ in binfmt_elf_fdpic.c
Oleg Nesterov [Thu, 30 Apr 2009 22:08:54 +0000 (15:08 -0700)]
ptrace: s/parent/real_parent/ in binfmt_elf_fdpic.c

->real_parent is the parent. ->parent may be the tracer.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agokernel-doc: restrict syntax for private: and public:
Randy Dunlap [Thu, 30 Apr 2009 22:08:53 +0000 (15:08 -0700)]
kernel-doc: restrict syntax for private: and public:

scripts/kernel-doc can (incorrectly) delete struct members that are
surrounded by /* ...  */ <struct members> /* ...  */ if there is a /*
private: */ comment in there somewhere also.

Fix that by making the "/* private:" only allow whitespace between /* and
"private:", not anything/everything in the world.

This fixes some erroneous kernel-doc warnings that popped up while
processing include/linux/usb/composite.h.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomm: fix Committed_AS underflow on large NR_CPUS environment
KOSAKI Motohiro [Thu, 30 Apr 2009 22:08:51 +0000 (15:08 -0700)]
mm: fix Committed_AS underflow on large NR_CPUS environment

The Committed_AS field can underflow in certain situations:

>         # while true; do cat /proc/meminfo  | grep _AS; sleep 1; done | uniq -c
>               1 Committed_AS: 18446744073709323392 kB
>              11 Committed_AS: 18446744073709455488 kB
>               6 Committed_AS:    35136 kB
>               5 Committed_AS: 18446744073709454400 kB
>               7 Committed_AS:    35904 kB
>               3 Committed_AS: 18446744073709453248 kB
>               2 Committed_AS:    34752 kB
>               9 Committed_AS: 18446744073709453248 kB
>               8 Committed_AS:    34752 kB
>               3 Committed_AS: 18446744073709320960 kB
>               7 Committed_AS: 18446744073709454080 kB
>               3 Committed_AS: 18446744073709320960 kB
>               5 Committed_AS: 18446744073709454080 kB
>               6 Committed_AS: 18446744073709320960 kB

Because NR_CPUS can be greater than 1000 and meminfo_proc_show() does
not check for underflow.

But NR_CPUS proportional isn't good calculation.  In general,
possibility of lock contention is proportional to the number of online
cpus, not theorical maximum cpus (NR_CPUS).

The current kernel has generic percpu-counter stuff.  using it is right
way.  it makes code simplify and percpu_counter_read_positive() don't
make underflow issue.

Reported-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Eric B Munson <ebmunson@us.ibm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: <stable@kernel.org> [All kernel versions]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoof: make of_(un)register_platform_driver common code
Grant Likely [Thu, 30 Apr 2009 22:08:50 +0000 (15:08 -0700)]
of: make of_(un)register_platform_driver common code

Some drivers using of_register_platform_driver() wrapper break on sparc
because the wrapper isn't in the header file.  This patch moves it from
Microblaze and PowerPC implementations and makes it common code.

Fixes this sparc64 allmodconfig build error (at least):

drivers/leds/leds-gpio.c: In function `gpio_led_init':
drivers/leds/leds-gpio.c:295: error: implicit declaration of function `of_register_platform_driver'
drivers/leds/leds-gpio.c: In function `gpio_led_exit':
drivers/leds/leds-gpio.c:311: error: implicit declaration of function `of_unregister_platform_driver'

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoalpha: binfmt_aout fix
Ivan Kokshaysky [Thu, 30 Apr 2009 22:08:49 +0000 (15:08 -0700)]
alpha: binfmt_aout fix

This fixes the problem introduced by commit 3bfacef412 (get rid of
special-casing the /sbin/loader on alpha): osf/1 ecoff binary segfaults
when binfmt_aout built as module.  That happens because aout binary
handler gets on the top of the binfmt list due to late registration, and
kernel attempts to execute the binary without preparatory work that must
be done by binfmt_loader.

Fixed by changing the registration order of the default binfmt handlers
using list_add_tail() and introducing insert_binfmt() function which
places new handler on the top of the binfmt list.  This might be generally
useful for installing arch-specific frontends for default handlers or just
for overriding them.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Richard Henderson <rth@twiddle.net
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoalpha: futex implementation
Ivan Kokshaysky [Thu, 30 Apr 2009 22:08:48 +0000 (15:08 -0700)]
alpha: futex implementation

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Richard Henderson <rth@twiddle.net
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoalpha: exception table sorting
Ivan Kokshaysky [Thu, 30 Apr 2009 22:08:47 +0000 (15:08 -0700)]
alpha: exception table sorting

Exception fixups for sections other than .text (like one in futex_init())
break the natural ordering of fixup entries, so sorting is required.

Without that the result of the exception table search depends on phase of
the moon.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Richard Henderson <rth@twiddle.net
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoalpha: titan and marvel build fixes
Ivan Kokshaysky [Thu, 30 Apr 2009 22:08:45 +0000 (15:08 -0700)]
alpha: titan and marvel build fixes

These platforms got broken after u64 => 'long long' conversion.

Apparently that change was compile-tested with 'make allmodconfig', but it
doesn't include systems that depend on !ALPHA_LEGACY_START_ADDRESS.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Richard Henderson <rth@twiddle.net
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agovgacon: return the upper half of 512 character fonts
Stefan Bader [Thu, 30 Apr 2009 22:08:44 +0000 (15:08 -0700)]
vgacon: return the upper half of 512 character fonts

Uwe Geuder noted that he gets random bitmaps on a text console if he tried
to type extended characters (like the e acute).  For him everything above
unicode 0xa0 was corrupted.

After some digging there seems to be a little culprit in vgacon since the
beginning of ages (well git).  The function vgacon_font_get will store the
number of characters correctly in font->charcount but then calls to
vgacon_do_font_op(..., 0, 0).  Which means only the lower 256 characters
are actually stored to the fontdata.  The rest is left untouched.  So the
next time that saved data is used, the garbled font appears.  This happens
on every switch between text consoles.

Addresses https://bugs.launchpad.net/ubuntu/+source/linux/+bug/355057

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Tested-by: Uwe Geuder <ubuntuLp-ugeuder@sneakemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomemcg: fix mem_cgroup_shrink_usage()
Daisuke Nishimura [Thu, 30 Apr 2009 22:08:19 +0000 (15:08 -0700)]
memcg: fix mem_cgroup_shrink_usage()

Current mem_cgroup_shrink_usage() has two problems.

1. It doesn't call mem_cgroup_out_of_memory and doesn't update
   last_oom_jiffies, so pagefault_out_of_memory invokes global OOM.

2. Considering hierarchy, shrinking has to be done from the
   mem_over_limit, not from the memcg which the page would be charged to.

mem_cgroup_try_charge_swapin() does all of these things properly, so we
use it and call cancel_charge_swapin when it succeeded.

The name of "shrink_usage" is not appropriate for this behavior, so we
change it too.

Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Li Zefan <lizf@cn.fujitsu.cn>
Cc: Paul Menage <menage@google.com>
Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agopagemap: require aligned-length, non-null reads of /proc/pid/pagemap
Vitaly Mayatskikh [Thu, 30 Apr 2009 22:08:18 +0000 (15:08 -0700)]
pagemap: require aligned-length, non-null reads of /proc/pid/pagemap

The intention of commit aae8679b0ebcaa92f99c1c3cb0cd651594a43915
("pagemap: fix bug in add_to_pagemap, require aligned-length reads of
/proc/pid/pagemap") was to force reads of /proc/pid/pagemap to be a
multiple of 8 bytes, but now it allows to read 0 bytes, which actually
puts some data to user's buffer.  According to POSIX, if count is zero,
read() should return zero and has no other results.

Signed-off-by: Vitaly Mayatskikh <v.mayatskih@gmail.com>
Cc: Thomas Tuttle <ttuttle@google.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomm: close page_mkwrite races
Nick Piggin [Thu, 30 Apr 2009 22:08:16 +0000 (15:08 -0700)]
mm: close page_mkwrite races

Change page_mkwrite to allow implementations to return with the page
locked, and also change it's callers (in page fault paths) to hold the
lock until the page is marked dirty.  This allows the filesystem to have
full control of page dirtying events coming from the VM.

Rather than simply hold the page locked over the page_mkwrite call, we
call page_mkwrite with the page unlocked and allow callers to return with
it locked, so filesystems can avoid LOR conditions with page lock.

The problem with the current scheme is this: a filesystem that wants to
associate some metadata with a page as long as the page is dirty, will
perform this manipulation in its ->page_mkwrite.  It currently then must
return with the page unlocked and may not hold any other locks (according
to existing page_mkwrite convention).

In this window, the VM could write out the page, clearing page-dirty.  The
filesystem has no good way to detect that a dirty pte is about to be
attached, so it will happily write out the page, at which point, the
filesystem may manipulate the metadata to reflect that the page is no
longer dirty.

It is not always possible to perform the required metadata manipulation in
->set_page_dirty, because that function cannot block or fail.  The
filesystem may need to allocate some data structure, for example.

And the VM cannot mark the pte dirty before page_mkwrite, because
page_mkwrite is allowed to fail, so we must not allow any window where the
page could be written to if page_mkwrite does fail.

This solution of holding the page locked over the 3 critical operations
(page_mkwrite, setting the pte dirty, and finally setting the page dirty)
closes out races nicely, preventing page cleaning for writeout being
initiated in that window.  This provides the filesystem with a strong
synchronisation against the VM here.

- Sage needs this race closed for ceph filesystem.
- Trond for NFS (http://bugzilla.kernel.org/show_bug.cgi?id=12913).
- I need it for fsblock.
- I suspect other filesystems may need it too (eg. btrfs).
- I have converted buffer.c to the new locking. Even simple block allocation
  under dirty pages might be susceptible to i_size changing under partial page
  at the end of file (we also have a buffer.c-side problem here, but it cannot
  be fixed properly without this patch).
- Other filesystems (eg. NFS, maybe btrfs) will need to change their
  page_mkwrite functions themselves.

[ This also moves page_mkwrite another step closer to fault, which should
  eventually allow page_mkwrite to be moved into ->fault, and thus avoiding a
  filesystem calldown and page lock/unlock cycle in __do_fault. ]

[akpm@linux-foundation.org: fix derefs of NULL ->mapping]
Cc: Sage Weil <sage@newdream.net>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoatomic: fix atomic_long_cmpxchg/xchg for 64 bit architectures
Heiko Carstens [Thu, 30 Apr 2009 22:08:14 +0000 (15:08 -0700)]
atomic: fix atomic_long_cmpxchg/xchg for 64 bit architectures

On a linux-next allyesconfig build:

kernel/trace/ring_buffer.c:1726:
warning: passing argument 1 of 'atomic_cmpxchg' from incompatible pointer type
linux-next/arch/s390/include/asm/atomic.h:112:
note: expected 'struct atomic_t *' but argument is of type 'struct atomic64_t *'

atomic_long_cmpxchg and atomic_long_xchg are incorrectly defined for 64
bit architectures.  They should be mapped to the atomic64_* variants.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoCRISv10: fix serial driver proc-usage
Jesper Nilsson [Thu, 30 Apr 2009 22:08:13 +0000 (15:08 -0700)]
CRISv10: fix serial driver proc-usage

drivers/serial/crisv10.c:4428: error: unknown field 'read_proc' specified in initializer

Commit 0f043a81ebe84be3576667f04fdda481609e3816 ("proc tty: remove struct
tty_operations::read_proc") removes the read_proc entry from struct
tty_operations.

Rework the proc handling in the CRISv10 serial driver to use proc_fops
instead.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMAINTAINERS: add ptrace entry
Christoph Hellwig [Thu, 30 Apr 2009 22:08:12 +0000 (15:08 -0700)]
MAINTAINERS: add ptrace entry

Add Roland and Oleg as formal ptrace maintainers, they've been doing the
job for a while.

Includes the file patterns requested by Joe.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomemcg: fix try_get_mem_cgroup_from_swapcache()
Daisuke Nishimura [Thu, 30 Apr 2009 22:08:11 +0000 (15:08 -0700)]
memcg: fix try_get_mem_cgroup_from_swapcache()

This is a bugfix for commit 3c776e64660028236313f0e54f3a9945764422df
("memcg: charge swapcache to proper memcg").

Used bit of swapcache is solid under page lock, but considering
move_account, pc->mem_cgroup is not.

We need lock_page_cgroup() anyway.

Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMAINTAINERS: Florian has moved
Florian Fainelli [Thu, 30 Apr 2009 22:08:10 +0000 (15:08 -0700)]
MAINTAINERS: Florian has moved

I will finish school soon, so replace my student address with this one.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoautofs4: fix incorrect return in autofs4_mount_busy()
Ian Kent [Thu, 30 Apr 2009 22:08:09 +0000 (15:08 -0700)]
autofs4: fix incorrect return in autofs4_mount_busy()

Fix an obvious incorrect return status in autofs4_mount_busy().

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomm: fix pageref leak in do_swap_page()
Johannes Weiner [Thu, 30 Apr 2009 22:08:08 +0000 (15:08 -0700)]
mm: fix pageref leak in do_swap_page()

By the time the memory cgroup code is notified about a swapin we
already hold a reference on the fault page.

If the cgroup callback fails make sure to unlock AND release the page
reference which was taken by lookup_swap_cach(), or we leak the reference.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agone2k-pci: Do not register device until initialized.
Lubomir Rintel [Sat, 2 May 2009 20:52:13 +0000 (13:52 -0700)]
ne2k-pci: Do not register device until initialized.

Doing it in reverse order causes uevent to be sent before
we have a MAC address, which confuses udev.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoSubject: [PATCH] br2684: restore net_dev initialization
Rabin Vincent [Sat, 2 May 2009 20:49:36 +0000 (13:49 -0700)]
Subject: [PATCH] br2684: restore net_dev initialization

Commit 0ba25ff4c669e5395110ba6ab4958a97a9f96922 ("br2684: convert to
net_device_ops") inadvertently deleted the initialization of the net_dev
pointer in the br2684_dev structure, leading to crashes.  This patch
adds it back.

Reported-by: Mikko Vinni <mmvinni@yahoo.com>
Tested-by: Mikko Vinni <mmvinni@yahoo.com>
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: Only store high 16 bits of kernel generated filter priorities
Robert Love [Sat, 2 May 2009 20:48:32 +0000 (13:48 -0700)]
net: Only store high 16 bits of kernel generated filter priorities

The kernel should only be using the high 16 bits of a kernel
generated priority. Filter priorities in all other cases only
use the upper 16 bits of the u32 'prio' field of 'struct tcf_proto',
but when the kernel generates the priority of a filter is saves all
32 bits which can result in incorrect lookup failures when a filter
needs to be deleted or modified.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoacpica: validate package element more carefully in acpi_rs_get_pci_routing_table_length
Robert Moore [Sat, 2 May 2009 18:48:37 +0000 (11:48 -0700)]
acpica: validate package element more carefully in acpi_rs_get_pci_routing_table_length

acpi_rs_get_pci_routing_table_length is not performing sufficient
validation on the package returned from _PRT.  It assumes a package of
packages and fails/faults if this is not the case.

We should validate each subpackage when extracted from the parent
package, and not accept objects of the wrong type, since that will just
cause the scanning to fail (likely with a kernel oops).

This can only happen with a serious BIOS bug, and is accompanied by a
warning something like this:

  ACPI Warning (nspredef-0949): \_SB_.PCI0.PEG4._PRT: Return Package type mismatch at index 0 - found Integer, expected Package [20090320]

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agom32r: use __stringify() macro in assembler.h
Hirokazu Takata [Sat, 2 May 2009 13:08:33 +0000 (22:08 +0900)]
m32r: use __stringify() macro in assembler.h

Replace #x with __stringify(x).
Also, #ifndef __STR is removed and undefine __STR macro at the beginning.

The __STR() macro is still remained, because the assembler.h might be
included from assembly codes as well as C codes.

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
10 years agom32r: build fix for __stringify macro
Hirokazu Takata [Sat, 2 May 2009 11:29:00 +0000 (20:29 +0900)]
m32r: build fix for __stringify macro

This patch fixes the following build error of 2.6.30-rc3-git2:

      AS      arch/m32r/kernel/head.o
    In file included from /include/linux/init.h:7,
                     from /arch/m32r/kernel/head.S:11:
    /include/linux/stringify.h:9: error: syntax error in macro parameter list
    /include/linux/stringify.h:10: error: syntax error in macro parameter list

This build error was caused at __HEAD macro in arch/m32r/kernel/head.S,
which uses __stringify() macro.

Remove -traditional option from EXTRA_AFLAGS for the m32r,
because the __stringify() macro depends on the gcc's variadic macro
extension function, due to commit:

    Make __stringify support variable argument macros too
    commit: 8f7c2c37319a81ef4c2bfdec67b1ccd5744d97e4

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
10 years agovirtio_net: Fix function name typo
Alex Williamson [Fri, 1 May 2009 17:31:10 +0000 (17:31 +0000)]
virtio_net: Fix function name typo

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agovirtio_net: Cleanup command queue scatterlist usage
Alex Williamson [Fri, 1 May 2009 17:27:56 +0000 (17:27 +0000)]
virtio_net: Cleanup command queue scatterlist usage

We were avoiding calling sg_init* on scatterlists passed
into virtnet_send_command to prevent extraneous end markers.
This caused build warnings for uninitialized variables.
Cleanup the code to create proper scatterlists.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobonding: correct the cleanup in bond_create()
Jiri Pirko [Fri, 1 May 2009 22:35:28 +0000 (15:35 -0700)]
bonding: correct the cleanup in bond_create()

This patch makes the cleanup in bond_create nicer :) Also now the forgotten
free_netdev is called.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agovirtio: add missing include to virtio_net.h
Grant Likely [Fri, 1 May 2009 22:34:02 +0000 (15:34 -0700)]
virtio: add missing include to virtio_net.h

virtio_net.h uses the macro ETH_ALEN which is defined in linux/if_ether.h.
Discovered when hacking on virtio-over-pci patches.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosmsc95xx: add support for LAN9512 and LAN9514
Steve Glendinning [Fri, 1 May 2009 06:07:22 +0000 (06:07 +0000)]
smsc95xx: add support for LAN9512 and LAN9514

LAN9512 and LAN9514 are USB hubs with an integrated 10/100 ethernet
controller.  Logically this looks like an ethernet controller (similar
to LAN9500) permanently attached to one of the hub's downstream ports.

This patch adds the usb device id of the new ethernet controller to the
smsc95xx driver.  This id is the same in both new devices.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosmsc95xx: configure LED outputs
Steve Glendinning [Fri, 1 May 2009 05:46:51 +0000 (05:46 +0000)]
smsc95xx: configure LED outputs

SMSC LAN9500 has dual purpose GPIO/LED pins, and by default at power-on
these are configured as GPIOs.  This means that if LEDs are fitted they
won't ever light.

This patch sets them to be LED outputs for speed, duplex and
link/activity.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonetconsole: take care of NETDEV_UNREGISTER event
Bruno Prémont [Wed, 29 Apr 2009 20:45:17 +0000 (20:45 +0000)]
netconsole: take care of NETDEV_UNREGISTER event

When netconsole is loaded and a network interface fades away (e.g. on
rmmod $interface_driver_module) the rmmod remains stuck and some locks
are taken that prevent any additional module loading/unloading as well
as interface up/down changes.
In addition kernel logs (and console) get flooded at 10s interval with

[  122.464065] unregister_netdevice: waiting for eth0 to become free. Usage count = 1
[  132.704059] unregister_netdevice: waiting for eth0 to become free. Usage count = 1

This patch lets netconsole take NETDEV_UNREGISTER event into account
and release the affected interface if it was in use.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoxt_socket: checks for the state of nf_conntrack
Laszlo Attila Toth [Fri, 1 May 2009 22:23:10 +0000 (15:23 -0700)]
xt_socket: checks for the state of nf_conntrack

xt_socket can use connection tracking, and checks whether it is a module.

Signed-off-by: Laszlo Attila Toth <panther@balabit.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobonding: bond_slave_info_query() fix
Eric Dumazet [Thu, 23 Apr 2009 03:39:04 +0000 (03:39 +0000)]
bonding: bond_slave_info_query() fix

bond_slave_info_query() should keep a read lock while accessing slave info,
or risk accessing stale data and corruption.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoHID: fix oops in hid_check_keys_pressed()
Jiri Kosina [Fri, 1 May 2009 22:02:57 +0000 (00:02 +0200)]
HID: fix oops in hid_check_keys_pressed()

If the device is not claimed by hid-input (i.e devices driver by userspace
hiddev/hidraw-based drivers, or completely detached from HID
and driver by libusb), we must not check the hid->inptus, as it
is not guaranteed to be initialized, as this is performed only for devices
handled by hid-input.

Reported-by: Guillaume Chazarain <guichaz@gmail.com>
Tested-by: Guillaume Chazarain <guichaz@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
10 years agox86: initialize io_bitmap_base on 32bit
Thomas Gleixner [Fri, 1 May 2009 18:59:25 +0000 (20:59 +0200)]
x86: initialize io_bitmap_base on 32bit

commit db949bba3c7cf2e664ac12e237c6d4c914f0c69d (x86-32: use non-lazy
io bitmap context switching) broke ioperm for 32bit because it removed
the lazy initialization of io_bitmap_base and did not set it to the
real bitmap offset.

[ Impact: fix non-working sys_ioperm() on 32-bit kernels ]

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
10 years agocxgb3: fixing gcc 4.4 compiler warning: suggest parentheses around operand of ‘!’
Sergey Senozhatsky [Fri, 1 May 2009 16:15:09 +0000 (09:15 -0700)]
cxgb3: fixing gcc 4.4 compiler warning: suggest parentheses around operand of ‘!’

Trivial: fixing gcc 4.4 compiler warning:
drivers/net/cxgb3/t3_hw.c: In function ‘t3_prep_adapter’:
drivers/net/cxgb3/t3_hw.c:3782: warning: suggest parentheses around operand of ‘!’ or change ‘|’ to ‘||’ or ‘!’ to ‘~’

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonetfilter: use likely() in xt_info_rdlock_bh()
Eric Dumazet [Fri, 1 May 2009 16:10:46 +0000 (09:10 -0700)]
netfilter: use likely() in xt_info_rdlock_bh()

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: Fix skb_tx_hash() for forwarding workloads.
Eric Dumazet [Fri, 1 May 2009 16:05:06 +0000 (09:05 -0700)]
net: Fix skb_tx_hash() for forwarding workloads.

When skb_rx_queue_recorded() is true, we dont want to use jash distribution
as the device driver exactly told us which queue was selected at RX time.
jhash makes a statistical shuffle, but this wont work with 8 static inputs.

Later improvements would be to compute reciprocal value of real_num_tx_queues
to avoid a divide here. But this computation should be done once,
when real_num_tx_queues is set. This needs a separate patch, and a new
field in struct net_device.

Reported-by: Andrew Dickinson <andrew@whydna.net>
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agokbuild, modpost: Check the section flags, to catch missing "ax"/"aw"
Anders Kaseorg [Thu, 23 Apr 2009 20:49:33 +0000 (16:49 -0400)]
kbuild, modpost: Check the section flags, to catch missing "ax"/"aw"

When you put
  .section ".foo"
in an assembly file instead of
  .section "foo", "ax"
, one of the possible symptoms is that modpost will see an
ld-generated section name ".foo.1" in section_rel() or section_rela().
But this heuristic has two problems: it will miss a bad section that
has no relocations, and it will incorrectly flag many gcc-generated
sections as bad when compiling with -ffunction-sections
-fdata-sections.

On mips it fixes a lot of bogus warnings with gcc 4.4.0 lije this one:
WARNING: crypto/cryptd.o (.text.T.349): unexpected section name.

So instead of checking whether the section name matches a particular
pattern, we directly check for a missing SHF_ALLOC in the section
flags.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Tested-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
10 years agokbuild: fix comment in modpost.c
Sam Ravnborg [Sun, 26 Apr 2009 09:17:42 +0000 (11:17 +0200)]
kbuild: fix comment in modpost.c

There is some confusion on naming of the head section.
Correct naming is .head.text.

Fix comment so we use correct naming.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
10 years agokbuild: fix scripts/setlocalversion with git
Nico Schottelius [Sat, 25 Apr 2009 07:48:39 +0000 (09:48 +0200)]
kbuild: fix scripts/setlocalversion with git

When using trees like wireless-testing, which have untagged tags,
scripts/setlocalversion does not display any git indication for
localversion.

This patch fixes it: If git is available, but no usable tag is found,
it uses -g${head}. It skips the detection of unanottated tags via
git name-rev.

Signed-off-by: Nico Schottelius <nico@ikn.schottelius.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
10 years agokbuild: fix Module.markers permission error under cygwin
Cedric Hombourger [Sat, 25 Apr 2009 07:38:21 +0000 (09:38 +0200)]
kbuild: fix Module.markers permission error under cygwin

While building the kernel, we end-up calling modpost with -K and -M
options for the same file (Modules.markers).  This is resulting in
modpost's main function calling read_markers() and then write_markers() on
the same file.

We then have read_markers() mmap'ing the file, and writer_markers()
opening that same file for writing.

The issue is that read_markers() exits without munmap'ing the file and is
as a matter holding a reference on Modules.markers.  When write_markers()
is opening that very same file for writing, we still have a reference on
it and cygwin (Windows?) is then making fopen() fail with EPERM.

Calling release_file() before exiting read_markers() clears that reference
(and memory leak) and fopen() then succeeds.

Tested on both cygwin (1.3.22) and Linux.  Also ran modpost within
valgrind on Linux to make sure that the munmap'ed file was not accessed
after read_markers()

Signed-off-by: Cedric Hombourger <chombourger@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
10 years agodocs: also clean index.html
Randy Dunlap [Sat, 18 Apr 2009 01:28:55 +0000 (18:28 -0700)]
docs: also clean index.html

Missed index.html in "make cleandocs", so add it.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
10 years agokbuild: remove a tag file before it is regenerated
Matt Kraai [Wed, 22 Apr 2009 03:38:23 +0000 (20:38 -0700)]
kbuild: remove a tag file before it is regenerated

If a tag file is not removed before it is regenerated, the newly
generated data is appended to the old, which preserves stale data and
makes the tag file grow over time.

Signed-off-by: Matt Kraai <kraai@ftbfs.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>