linux-2.6
16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
Linus Torvalds [Thu, 30 Oct 2008 18:50:57 +0000 (11:50 -0700)] 
Merge git://git./linux/kernel/git/gregkh/driver-core-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  Driver core: fix 'dynamic_debug' cmd line parameter
  HOWTO: Sync patch for jp_JP/HOWTO
  Update stable tree documentation
  sysfs: Fix return values for sysdev_store_{ulong,int}
  driver core: drivers/base/sys.c: update comments
  Document kernel taint flags properly

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Thu, 30 Oct 2008 18:49:12 +0000 (11:49 -0700)] 
Merge git://git./linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: prevent autosuspend during hub initialization
  USB: Unusual dev for the "Kyocera / Contax SL300R T*" digital camera.
  USB: usbtmc: Use explicit unsigned type for input buffer instead of char*
  USB: fix crash when URBs are unlinked after the device is gone

16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
Linus Torvalds [Thu, 30 Oct 2008 18:47:21 +0000 (11:47 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/lrg/voltage-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
  regulator: da903x regulator bug fix
  regulator: Build on non-ARM platforms

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Thu, 30 Oct 2008 18:46:28 +0000 (11:46 -0700)] 
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  amd8111e: Fix rx return code
  pktgen: fix multiple queue warning
  mac80211.h: fix kernel-doc excesses
  p54: fix build warnings
  ath5k: Reset key cache on interface up, thus fixing resume
  mac80211: correct warnings in minstrel rate control algorithm
  RFKILL: fix input layer initialisation
  p54: fix misbehavings when firmware can't be found
  dm9601: runtime mac address change support
  via-velocity: use driver string instead of dev->name before register_netdev()
  drivers/net/wan/syncppp: Fix unused-var warnings
  mlx4: Setting the correct offset for default mac address
  mlx4_en: remove duplicated #include
  ibm_newemac: Fix typo in flow control config option
  ehea: Detect 16GB hugepages for firmware restriction
  dmfe: check pci_alloc_consistent errors
  qeth: avoid skb_under_panic for malformatted inbound data
  qeth: remove unnecessary support ckeck in sysfs route6
  qeth: fix offset error in non prealloc header path
  qeth: remove non-recover-thread checkings

16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Thu, 30 Oct 2008 18:44:35 +0000 (11:44 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: ASoC: Fix WM9713 ALC Decay Time name
  ALSA: ASoC: Fix some minor errors in mpc5200 psc i2s driver
  ALSA: ASoC: Fix mono controls after conversion to support full int masks
  ALSA: sound/ice1712: indentation & braces disagree - add braces
  ALSA: usb - Add quirk for Edirol UA-25EX advanced modes
  sound: struct device - replace bus_id with dev_name(), dev_set_name()
  ALSA: hda - Add reboot notifier
  ALSA: Warn when control names are truncated
  ALSA: intel8x0 - add Dell Optiplex GX620 (AD1981B) to AC97 clock whitelist
  ALSA: hda - Fix SPDIF mute on IDT/STAC codecs
  ALSA: hda: Add HDA vendor ID for Wolfson Microelectronics
  ALSA: hda - Add another HP model for AD1884A

16 years agoMerge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 30 Oct 2008 18:44:09 +0000 (11:44 -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:
  ftrace: fix trace_nop config select
  ftrace: perform an initialization for ftrace to enable it

16 years agospi: fix compile error
Fernando Luis Vazquez Cao [Wed, 29 Oct 2008 21:01:21 +0000 (14:01 -0700)] 
spi: fix compile error

Fix compile error below:

     LD      drivers/spi/built-in.o
     CC [M]  drivers/spi/spi_gpio.o
   In file included from drivers/spi/spi_gpio.c:26:
   include/linux/spi/spi_bitbang.h:23: error: field `work' has incomplete type
   make[2]: *** [drivers/spi/spi_gpio.o] Error 1
   make[1]: *** [drivers/spi] Error 2
   make: *** [drivers] Error 2

Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agonfsd: fix vm overcommit crash
Alan Cox [Wed, 29 Oct 2008 21:01:20 +0000 (14:01 -0700)] 
nfsd: fix vm overcommit crash

Junjiro R.  Okajima reported a problem where knfsd crashes if you are
using it to export shmemfs objects and run strict overcommit.  In this
situation the current->mm based modifier to the overcommit goes through a
NULL pointer.

We could simply check for NULL and skip the modifier but we've caught
other real bugs in the past from mm being NULL here - cases where we did
need a valid mm set up (eg the exec bug about a year ago).

To preserve the checks and get the logic we want shuffle the checking
around and add a new helper to the vm_ security wrappers

Also fix a current->mm reference in nommu that should use the passed mm

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix build]
Reported-by: Junjiro R. Okajima <hooanon05@yahoo.co.jp>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoipmi: add MODULE_ALIAS to load ipmi_devintf with ipmi_si
Scott James Remnant [Wed, 29 Oct 2008 21:01:18 +0000 (14:01 -0700)] 
ipmi: add MODULE_ALIAS to load ipmi_devintf with ipmi_si

The ipmi_devintf module contains the userspace interface for IPMI devices,
yet will not be loaded automatically with a system interface handler
driver.

Add a MODULE_ALIAS for the "platform:ipmi_si" MODALIAS exported by the
ipmi_si driver, so that userspace knows of the recommendation.

Signed-off-by: Scott James Remnant <scott@ubuntu.com>
Cc: Tim Gardner <tcanonical@tpi.com>
Cc: Corey Minyard <minyard@acm.org>
Cc: <stable@kernel.org> [2.6.27.x, maybe earlier?]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoframebuffer compat_ioctl deadlock
Mikulas Patocka [Wed, 29 Oct 2008 21:01:17 +0000 (14:01 -0700)] 
framebuffer compat_ioctl deadlock

Fix deadlock in fb_compat_ioctl.  fb_compat_ioctl acquires a mutex and
calls fb_ioctl that tries to acquire that mutex too.  A regression added
during BKL removal.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agortc S3C: add device_init_wakeup() invokation
Yauhen Kharuzhy [Wed, 29 Oct 2008 21:01:16 +0000 (14:01 -0700)] 
rtc S3C: add device_init_wakeup() invokation

tAdd adds device_init_wakeup() ivokation to probe function of
s3c2410_rtc_driver.  Without of this wakealarm sysfs attribute does not
initialise.

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agokernel.h: fix might_sleep kernel-doc
Randy Dunlap [Wed, 29 Oct 2008 21:01:15 +0000 (14:01 -0700)] 
kernel.h: fix might_sleep kernel-doc

Put the kernel-doc for might_sleep() _immediately_ before the macro
(no intervening lines).  Otherwise kernel-doc complains like so:

Warning(linux-2.6.27-rc3-git2//include/linux/kernel.h:129): No description found for parameter 'file'
Warning(linux-2.6.27-rc3-git2//include/linux/kernel.h:129): No description found for parameter 'line'

because kernel-doc is looking at the wrong function prototype (i.e.,
__might_sleep).  [Yes, I have a todo note to myself to check/warn for that
inconsistency in scripts/kernel-doc.]

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoRationalise Randy's address a bit
Alan Cox [Wed, 29 Oct 2008 21:01:14 +0000 (14:01 -0700)] 
Rationalise Randy's address a bit

Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agortc: ds3234 doesn't link when built-in
Geert Uytterhoeven [Wed, 29 Oct 2008 21:01:13 +0000 (14:01 -0700)] 
rtc: ds3234 doesn't link when built-in

When ds3234 is built-in, the final links fails with the following vague error
message:

`.exit.text' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o

ds3234_remove() cannot be marked __exit, as it's accessed via __devexit_p().
In addition, mark ds3234_probe() __devinit while we're at it.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMAINTAINERS: add LTP info to the list
Mike Frysinger [Wed, 29 Oct 2008 21:01:12 +0000 (14:01 -0700)] 
MAINTAINERS: add LTP info to the list

Cc: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agosgi-xp: only build for ia64-sn2 when CONFIG_IA64_GENERIC specified
Dean Nelson [Wed, 29 Oct 2008 21:01:12 +0000 (14:01 -0700)] 
sgi-xp: only build for ia64-sn2 when CONFIG_IA64_GENERIC specified

For the time being build for ia64-sn2 alone when CONFIG_IA64_GENERIC is
specified.

This eliminates a dependency of the XP/XPC drivers on having the GRU
driver insmod'd in order to insmod them, when running on an ia64-sn2
system.

On such a system the GRU driver serves no useful purpose.

Signed-off-by: Dean Nelson <dcn@sgi.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years ago'kill sig -1' must only apply to caller's namespace
Sukadev Bhattiprolu [Wed, 29 Oct 2008 21:01:11 +0000 (14:01 -0700)] 
'kill sig -1' must only apply to caller's namespace

Currently "kill <sig> -1" kills processes in all namespaces and breaks the
isolation of namespaces.  Earlier attempt to fix this was discussed at:

http://lkml.org/lkml/2008/7/23/148

As suggested by Oleg Nesterov in that thread, use "task_pid_vnr() > 1"
check since task_pid_vnr() returns 0 if process is outside the caller's
namespace.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Tested-by: Daniel Hokka Zakrisson <daniel@hozac.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofs: remove excess kernel-doc
Randy Dunlap [Wed, 29 Oct 2008 21:01:10 +0000 (14:01 -0700)] 
fs: remove excess kernel-doc

Delete excess kernel-doc notation in fs/ subdirectory:

Warning(linux-2.6.27-git10//fs/jbd/transaction.c:886): Excess function parameter or struct member 'credits' description in 'journal_get_undo_access'

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>
16 years agomm: fix kernel-doc function notation
Randy Dunlap [Wed, 29 Oct 2008 21:01:09 +0000 (14:01 -0700)] 
mm: fix kernel-doc function notation

Delete excess kernel-doc notation in mm/ subdirectory.
Actually this is a kernel-doc notation fix.

Warning(/var/linsrc/linux-2.6.27-git10//mm/vmalloc.c:902): Excess function parameter or struct member 'returns' description in 'vm_map_ram'

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>
16 years agoi2o: fix kernel-doc warnings
Randy Dunlap [Wed, 29 Oct 2008 21:01:09 +0000 (14:01 -0700)] 
i2o: fix kernel-doc warnings

Fixup i2o kernel-doc warnings:

Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:579): No description found for parameter 'bdev'
Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:579): No description found for parameter 'mode'
Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:608): No description found for parameter 'disk'
Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:608): No description found for parameter 'mode'
Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:657): No description found for parameter 'bdev'
Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:657): No description found for parameter 'mode'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoecryptfs: fix memory corruption when storing crypto info in xattrs
Eric Sandeen [Wed, 29 Oct 2008 21:01:08 +0000 (14:01 -0700)] 
ecryptfs: fix memory corruption when storing crypto info in xattrs

When ecryptfs allocates space to write crypto headers into, before copying
it out to file headers or to xattrs, it looks at the value of
crypt_stat->num_header_bytes_at_front to determine how much space it
needs.  This is also used as the file offset to the actual encrypted data,
so for xattr-stored crypto info, the value was zero.

So, we kzalloc'd 0 bytes, and then ran off to write to that memory.
(Which returned as ZERO_SIZE_PTR, so we explode quickly).

The right answer is to always allocate a page to write into; the current
code won't ever write more than that (this is enforced by the
(PAGE_CACHE_SIZE - offset) length in the call to
ecryptfs_generate_key_packet_set).  To be explicit about this, we now send
in a "max" parameter, rather than magically using PAGE_CACHE_SIZE there.

Also, since the pointer we pass down the callchain eventually gets the
virt_to_page() treatment, we should be using a alloc_page variant, not
kzalloc (see also 7fcba054373d5dfc43d26e243a5c9b92069972ee)

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Acked-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agokernel/profile: fix profile_init() section mismatch
Paul Mundt [Wed, 29 Oct 2008 21:01:07 +0000 (14:01 -0700)] 
kernel/profile: fix profile_init() section mismatch

profile_init() calls in to alloc_bootmem() on early initialization.  While
alloc_bootmem() is __init, the reference itself is safe in that it is
tucked below a !slab_is_available() check.  So, flag profile_init() as
__ref.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomemcg: update menuconfig help text
KAMEZAWA Hiroyuki [Wed, 29 Oct 2008 21:01:06 +0000 (14:01 -0700)] 
memcg: update menuconfig help text

page_cgroup is now allocated at boot and memmap doesn't includes pointer
for page_cgroup.  Fix the menu help text.

Reviewed-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-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>
16 years agohdpuftrs: fix build
Mariusz Kozlowski [Wed, 29 Oct 2008 21:01:05 +0000 (14:01 -0700)] 
hdpuftrs: fix build

drivers/misc/hdpuftrs/hdpu_nexus.c:118: error: expected identifier or '(' before 'return'
drivers/misc/hdpuftrs/hdpu_nexus.c:119: error: expected identifier or '(' before '}' token

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoinit/do_mounts_md.c: msleep compile fix
Alexey Dobriyan [Wed, 29 Oct 2008 21:01:05 +0000 (14:01 -0700)] 
init/do_mounts_md.c: msleep compile fix

init/do_mounts_md.c:285: error: implicit declaration of function 'msleep'

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agosony-laptop: ignore missing _DIS method on pic device
Matthew Garrett [Wed, 29 Oct 2008 21:01:03 +0000 (14:01 -0700)] 
sony-laptop: ignore missing _DIS method on pic device

At least the Vaio VGN-Z540N doesn't have this method, so let's not fail
to suspend just because it doesn't exist.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Mattia Dongili <malattia@linux.it>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofbcon: don't inline updatescrollmode
Marcin Slusarz [Wed, 29 Oct 2008 21:01:01 +0000 (14:01 -0700)] 
fbcon: don't inline updatescrollmode

Updatescrollmode is marked inline, but it's big and is called only from
non-critical codepaths (fbcon_resize, fbcon_switch, fbcon_modechanged).
Dropping it saves almost 800 bytes of text size.

   text    data     bss     dec     hex filename
  23859     287    8448   32594    7f52 drivers/video/console/fbcon.o.before
  23065     287    8448   31800    7c38 drivers/video/console/fbcon.o.after

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoedac: fix enabling of polling cell module
Benjamin Herrenschmidt [Wed, 29 Oct 2008 21:01:00 +0000 (14:01 -0700)] 
edac: fix enabling of polling cell module

The edac driver on cell turned out to be not enabled because of a missing
op_state.  This patch introduces it.  Verified to work on top of Ben's
next branch.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Osterkamp <jens@linux.vnet.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agortc-s3c: fix section mismatch warnings
Yauhen Kharuzhy [Wed, 29 Oct 2008 21:00:59 +0000 (14:00 -0700)] 
rtc-s3c: fix section mismatch warnings

Warnings was appeared when compile rtc-s3c.c because
platform_driver structure s3c2410_rtcdrv has wrong name.

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agodocs: fix ManagementStyle book name
Jiri Pirko [Wed, 29 Oct 2008 21:00:58 +0000 (14:00 -0700)] 
docs: fix ManagementStyle book name

Just corrected the book name.  I'm probably the only one who ever read
this file :-)

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
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>
16 years agodocbook: fix command spacing
Hans Ulrich Niedermann [Wed, 29 Oct 2008 21:00:57 +0000 (14:00 -0700)] 
docbook: fix command spacing

The total width of the command name plus spaces should be
8 characters, but were 7 and 9, respectively. With 8 chars,
all commands are now lining up nicely.

The mandocs, psdocs, xmldocs commands are OK.

Before:
  HOSTCC  scripts/basic/docproc
  DOCPROC Documentation/DocBook/deviceiobook.xml
  HTML   Documentation/DocBook/deviceiobook.html
  DOCPROC Documentation/DocBook/wanbook.xml
  PDF      Documentation/DocBook/wanbook.pdf

After:
  HOSTCC  scripts/basic/docproc
  DOCPROC Documentation/DocBook/deviceiobook.xml
  HTML    Documentation/DocBook/deviceiobook.html
  DOCPROC Documentation/DocBook/wanbook.xml
  PDF     Documentation/DocBook/wanbook.pdf

Signed-off-by: Hans Ulrich Niedermann <hun@n-dimensional.de>
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>
16 years agofs: remove prepare_write/commit_write
Nick Piggin [Wed, 29 Oct 2008 21:00:55 +0000 (14:00 -0700)] 
fs: remove prepare_write/commit_write

Nothing uses prepare_write or commit_write. Remove them from the tree
completely.

[akpm@linux-foundation.org: schedule simple_prepare_write() for unexporting]
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agocgroups: tiny cleanups
Li Zefan [Wed, 29 Oct 2008 21:00:54 +0000 (14:00 -0700)] 
cgroups: tiny cleanups

- remove 'private' field from struct subsys
- remove cgroup_init_smp()

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofreezer_cg: simplify freezer_change_state()
Li Zefan [Wed, 29 Oct 2008 21:00:54 +0000 (14:00 -0700)] 
freezer_cg: simplify freezer_change_state()

Just call unfreeze_cgroup() if goal_state == THAWED, and call
try_to_freeze_cgroup() if goal_state == FROZEN.

No behavior has been changed.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Cedric Le Goater <clg@fr.ibm.com>
Acked-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofreezer_cg: use thaw_process() in unfreeze_cgroup()
Li Zefan [Wed, 29 Oct 2008 21:00:53 +0000 (14:00 -0700)] 
freezer_cg: use thaw_process() in unfreeze_cgroup()

Don't duplicate the implementation of thaw_process().

[akpm@linux-foundation.org: make __thaw_process() static]
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Acked-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofreezer_cg: remove redundant check in freezer_can_attach()
Li Zefan [Wed, 29 Oct 2008 21:00:52 +0000 (14:00 -0700)] 
freezer_cg: remove redundant check in freezer_can_attach()

It is sufficient to check if @task is frozen, and no need to check if the
original freezer is frozen.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Cedric Le Goater <clg@fr.ibm.com>
Acked-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofreezer_cg: fix improper BUG_ON() causing oops
Li Zefan [Wed, 29 Oct 2008 21:00:51 +0000 (14:00 -0700)] 
freezer_cg: fix improper BUG_ON() causing oops

The BUG_ON() should be protected by freezer->lock, otherwise it can be
triggered easily when a task has been unfreezed but the corresponding
cgroup hasn't been changed to FROZEN state.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Cedric Le Goater <clg@fr.ibm.com>
Acked-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoedac x38: new MC driver module
Hitoshi Mitake [Wed, 29 Oct 2008 21:00:50 +0000 (14:00 -0700)] 
edac x38: new MC driver module

I wrote a new module for Intel X38 chipset.  This chipset is very similar
to Intel 3200 chipset, but there are some different points, so I copyed
i3200_edac.c and modified.

This is Intel's web page describing this chipset.
http://www.intel.com/Products/Desktop/Chipsets/X38/X38-overview.htm

I've tested this new module with broken memory, and it seems to be working
well.

Signed-off-by: Hitoshi Mitake <mitake@clustcom.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years ago.gitignore updates
Alexey Dobriyan [Wed, 29 Oct 2008 21:00:50 +0000 (14:00 -0700)] 
.gitignore updates

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoviafb: removed duplicated #include's
Huang Weiyi [Wed, 29 Oct 2008 21:00:49 +0000 (14:00 -0700)] 
viafb: removed duplicated #include's

Removed duplicated #include's in drivers/video/via/global.h.
  debug.h
  viafbdev.h
  viamode.h

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Cc: Joseph Chan <josephchan@via.com.tw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomm: increase the default mlock limit from 32k to 64k
Kurt Garloff [Wed, 29 Oct 2008 21:00:48 +0000 (14:00 -0700)] 
mm: increase the default mlock limit from 32k to 64k

By default, non-privileged tasks can only mlock() a small amount of
memory to avoid a DoS attack by ordinary users.  The Linux kernel
defaulted to 32k (on a 4k page size system) to accommodate the needs of
gpg.

However, newer gpg2 needs 64k in various circumstances and otherwise
fails miserably, see bnc#329675.

Change the default to 64k, and make it more agnostic to PAGE_SIZE.

Signed-off-by: Kurt Garloff <garloff@suse.de>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoregulator: da903x regulator bug fix
Jonathan Cameron [Tue, 28 Oct 2008 11:03:48 +0000 (11:03 +0000)] 
regulator: da903x regulator bug fix

Changes the device registration part of the probe function to supply the
regulator device rather than its parent (the mfd device) as this caused
problems when the regulator core attempted to find constraints associated
with the regulators.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
16 years agoMerge branches 'topic/fix/misc' and 'topic/fix/asoc' into for-linus
Takashi Iwai [Thu, 30 Oct 2008 13:26:24 +0000 (14:26 +0100)] 
Merge branches 'topic/fix/misc' and 'topic/fix/asoc' into for-linus

16 years agoALSA: ASoC: Fix WM9713 ALC Decay Time name
Mark Brown [Thu, 30 Oct 2008 12:37:10 +0000 (12:37 +0000)] 
ALSA: ASoC: Fix WM9713 ALC Decay Time name

The control had an extra space at the end of the name.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoALSA: ASoC: Fix some minor errors in mpc5200 psc i2s driver
Jon Smirl [Thu, 30 Oct 2008 12:37:09 +0000 (12:37 +0000)] 
ALSA: ASoC: Fix some minor errors in mpc5200 psc i2s driver

Fix missing unsigned for irqsave flags in psc i2s driver
Make attribute visiblity static
Collect all sysfs errors before checking status

[Word wrapped DEVICE_ATTR() lines for 80 columns -- broonie]

Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoALSA: ASoC: Fix mono controls after conversion to support full int masks
Mark Brown [Thu, 30 Oct 2008 12:37:08 +0000 (12:37 +0000)] 
ALSA: ASoC: Fix mono controls after conversion to support full int masks

When ASoC was converted to support full int width masks SOC_SINGLE_VALUE()
omitted the assignment of rshift, causing the control operatins to report
some mono controls as stereo. This happened to work some of the time due
to a confusion between shift and min in snd_soc_info_volsw().

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoALSA: sound/ice1712: indentation & braces disagree - add braces
Ilpo Järvinen [Thu, 30 Oct 2008 11:09:55 +0000 (13:09 +0200)] 
ALSA: sound/ice1712: indentation & braces disagree - add braces

Neither has any significance currently to the flow
because err is checked for the same condition before
the place of disagreement.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoALSA: usb - Add quirk for Edirol UA-25EX advanced modes
Takashi Iwai [Mon, 20 Oct 2008 14:07:45 +0000 (16:07 +0200)] 
ALSA: usb - Add quirk for Edirol UA-25EX advanced modes

Added the quirk for UA-25EX advanced modes.
UA-25EX is almost compatible with UA-25.

Tested-by: Serge Perinsky <sergebass@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agosound: struct device - replace bus_id with dev_name(), dev_set_name()
Kay Sievers [Thu, 30 Oct 2008 01:27:20 +0000 (02:27 +0100)] 
sound: struct device - replace bus_id with dev_name(), dev_set_name()

Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-By: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoDriver core: fix 'dynamic_debug' cmd line parameter
Jason Baron [Mon, 27 Oct 2008 16:05:14 +0000 (12:05 -0400)] 
Driver core: fix 'dynamic_debug' cmd line parameter

In testing 2.6.28-rc1, I found that passing 'dynamic_printk' on the command
line didn't activate the debug code. The problem is that dynamic_printk_setup()
(which activates the debugging) is being called before dynamic_printk_init() is
called (which initializes infrastructure). Fix this by setting setting the
state to 'DYNAMIC_ENABLED_ALL' in dynamic_printk_setup(), which will also
cause all subsequent modules to have debugging automatically started, which is
probably the behavior we want.

Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoHOWTO: Sync patch for jp_JP/HOWTO
Tsugikazu Shibata [Mon, 27 Oct 2008 09:05:40 +0000 (18:05 +0900)] 
HOWTO: Sync patch for jp_JP/HOWTO

Sync the jp_JP version of HOWTO to contain the latest updates

From: Tsugikazu Shibata <tshibata@ab.jp.nec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoUpdate stable tree documentation
Josh Boyer [Fri, 24 Oct 2008 14:10:42 +0000 (10:10 -0400)] 
Update stable tree documentation

Update the documentation for the stable tree rules to reflect
that device IDs and quirks are also suitable for -stable
kernels.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agosysfs: Fix return values for sysdev_store_{ulong,int}
Andi Kleen [Mon, 13 Oct 2008 10:03:03 +0000 (12:03 +0200)] 
sysfs: Fix return values for sysdev_store_{ulong,int}

SYSFS: Fix return values for sysdev_store_{ulong,int}

Always return the full size instead of the consumed
length of the string in sysdev_store_{ulong,int}

This avoids EINVAL errors in some echo versions.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agodriver core: drivers/base/sys.c: update comments
Qinghuang Feng [Mon, 13 Oct 2008 10:05:04 +0000 (18:05 +0800)] 
driver core: drivers/base/sys.c: update comments

There are no functions named sys_device_shutdown or sys_device_suspend
in the kernel.
They should be fixed to sysdev_shutdown and sysdev_suspend respectively.

Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoDocument kernel taint flags properly
Greg Kroah-Hartman [Fri, 17 Oct 2008 22:01:07 +0000 (15:01 -0700)] 
Document kernel taint flags properly

This fills in the documentation for all of the current kernel taint
flags, and fixes the number for TAINT_CRAP, which was incorrectly
described.

Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoUSB: prevent autosuspend during hub initialization
Alan Stern [Mon, 27 Oct 2008 16:07:44 +0000 (12:07 -0400)] 
USB: prevent autosuspend during hub initialization

This patch (as1153) fixes a potential problem in hub initialization.
Starting in 2.6.28, initialization was split into several tasks to
help speed up booting.  This opens the possibility that the hub may be
autosuspended before all the initialization tasks can complete.

Normally that wouldn't matter, but with incomplete initialization
there is a risk that the hub would never autoresume -- especially if
devices were plugged into the hub beforehand.  The solution is a
simple one-line change to suppress autosuspend until the
initialization is finished.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoUSB: Unusual dev for the "Kyocera / Contax SL300R T*" digital camera.
Jens Taprogge [Sun, 26 Oct 2008 17:16:09 +0000 (18:16 +0100)] 
USB: Unusual dev for the "Kyocera / Contax SL300R T*" digital camera.

The camera reports an incorrect size and fails to handle PREVENT-ALLOW
MEDIUM REMOVAL commands.  The patch marks the camera as an unusual dev
and adds the flags to enable the workarounds for both shortcomings.

Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoUSB: usbtmc: Use explicit unsigned type for input buffer instead of char*
Chris Malley [Sat, 25 Oct 2008 21:07:32 +0000 (22:07 +0100)] 
USB: usbtmc: Use explicit unsigned type for input buffer instead of char*

Silences compiler warning about comparison with 0x80, and type now matches the
corresponding _bulk_out function.

drivers/usb/class/usbtmc.c: In function â€˜usbtmc_ioctl_abort_bulk_in’:
drivers/usb/class/usbtmc.c:163: warning: comparison is always false due to limited range of data type

Signed-off-by: Chris Malley <mail@chrismalley.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoUSB: fix crash when URBs are unlinked after the device is gone
Alan Stern [Tue, 21 Oct 2008 19:28:46 +0000 (15:28 -0400)] 
USB: fix crash when URBs are unlinked after the device is gone

This patch (as1151) protects usbcore against drivers that try to
unlink an URB after the URB's device or bus have been removed.  The
core does not currently check for this, and certain drivers can cause
a crash if they are running while an HCD is unloaded.

Certainly it would be best to fix the guilty drivers.  But a little
defensive programming doesn't hurt, especially since it appears that
quite a few drivers need to be fixed.

The patch prevents the problem by grabbing a reference to the device
while an unlink is in progress and using a new spinlock to synchronize
unlinks with device removal.  (There's no need to acquire a reference
to the bus as well, since the device structure itself keeps a
reference to the bus.)  In addition, the kerneldoc is updated to
indicate that URBs should not be unlinked after the disconnect method
returns.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoftrace: fix trace_nop config select
Steven Rostedt [Wed, 29 Oct 2008 15:15:57 +0000 (11:15 -0400)] 
ftrace: fix trace_nop config select

Impact: build fix on non-function-tracing architectures

The trace_nop is the tracer that is defined when no tracer is set in
the ftrace infrastructure.

The trace_nop was mistakenly selected by HAVE_FTRACE due to the confusion
between ftrace infrastructure and the ftrace function tracer (which has
been solved by renaming the function tracer).

This patch changes the select to the approriate TRACING.

This patch should fix compile errors on architectures that do not define
the FUNCTION_TRACER.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agoMerge branches 'topic/fix/hda' and 'topic/fix/misc' into for-linus
Takashi Iwai [Wed, 29 Oct 2008 15:40:00 +0000 (16:40 +0100)] 
Merge branches 'topic/fix/hda' and 'topic/fix/misc' into for-linus

16 years agoALSA: hda - Add reboot notifier
Takashi Iwai [Wed, 29 Oct 2008 15:18:25 +0000 (16:18 +0100)] 
ALSA: hda - Add reboot notifier

The current snd-hda-intel driver seems blocking the power-off on some
devices like eeepc.  Although this is likely a BIOS problem, we can add
a workaround by disabling IRQ lines before power-off operation.
This patch adds the reboot notifier to achieve it.

The detailed problem description is found in bug#11889:
    http://bugme.linux-foundation.org/show_bug.cgi?id=11889

Tested-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Cc: stable@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoALSA: Warn when control names are truncated
Mark Brown [Wed, 29 Oct 2008 14:40:30 +0000 (14:40 +0000)] 
ALSA: Warn when control names are truncated

This is likely to confuse user interfaces since the end of the control
name is interpreted (eg, "Volume", "Switch").

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoALSA: intel8x0 - add Dell Optiplex GX620 (AD1981B) to AC97 clock whitelist
Bastien Nocera [Wed, 29 Oct 2008 12:59:05 +0000 (12:59 +0000)] 
ALSA: intel8x0 - add Dell Optiplex GX620 (AD1981B) to AC97 clock whitelist

alsa-info.sh output at:
https://bugzilla.redhat.com/show_bug.cgi?id=441087#c49

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoALSA: hda - Fix SPDIF mute on IDT/STAC codecs
Takashi Iwai [Wed, 29 Oct 2008 07:03:42 +0000 (08:03 +0100)] 
ALSA: hda - Fix SPDIF mute on IDT/STAC codecs

The SPDIF mute switch code seems broken.  It doesn't set unmute bits
properly.  Also it contains the duplicated lines (merge error?) to be
cleaned up.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoamd8111e: Fix rx return code
Chris Friesen [Tue, 28 Oct 2008 22:50:54 +0000 (15:50 -0700)] 
amd8111e: Fix rx return code

The amd8111e rx poll routine currently mishandles the case when we
process exactly the number of packets specified in the budget.

This patch is basically as suggested by David Miller.

Signed-off-by: Chris Friesen <cfriesen@nortel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoregulator: Build on non-ARM platforms
Mark Brown [Wed, 15 Oct 2008 10:53:34 +0000 (11:53 +0100)] 
regulator: Build on non-ARM platforms

When the regulator API was merged it was added to the separate Kconfig
which ARM uses for drivers but not the generic one in drivers/.  Since
there is nothing ARM-specific about the API add it there too.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
16 years agopktgen: fix multiple queue warning
Jesse Brandeburg [Tue, 28 Oct 2008 20:21:51 +0000 (13:21 -0700)] 
pktgen: fix multiple queue warning

when testing the new pktgen module with multiple queues and ixgbe with:
pgset "flag QUEUE_MAP_CPU"

I found that I was getting errors in dmesg like:
pktgen: WARNING: QUEUE_MAP_CPU disabled because CPU count (8) exceeds number
<4>pktgen: WARNING: of tx queues (8) on eth15

you'll note, 8 really doesn't exceed 8.

This patch seemed to fix the logic errors and also the attempts at
limiting line length in printk (which didn't work anyway)

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Robert Olsson <robert.olsson@its.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoftrace: perform an initialization for ftrace to enable it
Frederic Weisbecker [Tue, 28 Oct 2008 19:17:38 +0000 (20:17 +0100)] 
ftrace: perform an initialization for ftrace to enable it

Impact: corrects a bug which made the non-dyn function tracer not functional

With latest git, the non-dynamic function tracer didn't get any trace.

The problem was the fact that ftrace_enabled wasn't initialized to 1
because ftrace hasn't any init function when DYNAMIC_FTRACE is disabled.

So when a tracer tries to register an ftrace_ops struct,
__register_ftrace_function failed to set the hook.

This patch corrects it by setting an init function to initialize
ftrace during the boot.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agoMerge branch 'davem-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
David S. Miller [Tue, 28 Oct 2008 18:01:07 +0000 (11:01 -0700)] 
Merge branch 'davem-fixes' of /linux/kernel/git/jgarzik/netdev-2.6

16 years agoMerge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 28 Oct 2008 16:52:25 +0000 (09:52 -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: (31 commits)
  ftrace: fix current_tracer error return
  tracing: fix a build error on alpha
  ftrace: use a real variable for ftrace_nop in x86
  tracing/ftrace: make boot tracer select the sched_switch tracer
  tracepoint: check if the probe has been registered
  asm-generic: define DIE_OOPS in asm-generic
  trace: fix printk warning for u64
  ftrace: warning in kernel/trace/ftrace.c
  ftrace: fix build failure
  ftrace, powerpc, sparc64, x86: remove notrace from arch ftrace file
  ftrace: remove ftrace hash
  ftrace: remove mcount set
  ftrace: remove daemon
  ftrace: disable dynamic ftrace for all archs that use daemon
  ftrace: add ftrace warn on to disable ftrace
  ftrace: only have ftrace_kill atomic
  ftrace: use probe_kernel
  ftrace: comment arch ftrace code
  ftrace: return error on failed modified text.
  ftrace: dynamic ftrace process only text section
  ...

16 years agoMerge branch 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 28 Oct 2008 16:50:11 +0000 (09:50 -0700)] 
Merge branch 'kvm-updates/2.6.28' of git://git./linux/kernel/git/avi/kvm

* 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  KVM: ia64: Makefile fix for forcing to re-generate asm-offsets.h
  KVM: Future-proof device assignment ABI
  KVM: ia64: Fix halt emulation logic
  KVM: Fix guest shared interrupt with in-kernel irqchip
  KVM: MMU: sync root on paravirt TLB flush

16 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 28 Oct 2008 16:49:27 +0000 (09:49 -0700)] 
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  lockdep: fix irqs on/off ip tracing
  lockdep: minor fix for debug_show_all_locks()
  x86: restore the old swiotlb alloc_coherent behavior
  x86: use GFP_DMA for 24bit coherent_dma_mask
  swiotlb: remove panic for alloc_coherent failure
  xen: compilation fix of drivers/xen/events.c on IA64
  xen: portability clean up and some minor clean up for xencomm.c
  xen: don't reload cr3 on suspend
  kernel/resource: fix reserve_region_with_split() section mismatch
  printk: remove unused code from kernel/printk.c

16 years agoMerge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 28 Oct 2008 16:48:25 +0000 (09:48 -0700)] 
Merge branch 'irq-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  irq: make variable static

16 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 28 Oct 2008 16:46:20 +0000 (09:46 -0700)] 
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: fix documentation reference for sched_min_granularity_ns
  sched: virtual time buddy preemption
  sched: re-instate vruntime based wakeup preemption
  sched: weaken sync hint
  sched: more accurate min_vruntime accounting
  sched: fix a find_busiest_group buglet
  sched: add CONFIG_SMP consistency

16 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 28 Oct 2008 16:45:31 +0000 (09:45 -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, memory hotplug: remove wrong -1 in calling init_memory_mapping()
  x86: keep the /proc/meminfo page count correct
  x86/uv: memory allocation at initialization
  xen: fix Xen domU boot with batched mprotect

16 years agoMerge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Tue, 28 Oct 2008 16:44:59 +0000 (09:44 -0700)] 
Merge branch 'for-linus' of git://git390.osdl.marist.edu/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] s390: Fix build for !CONFIG_S390_GUEST + CONFIG_VIRTIO_CONSOLE
  [S390] No more 4kb stacks.
  [S390] Change default IPL method to IPL_VM.
  [S390] tape: disable interrupts in tape_open and tape_release
  [S390] appldata: unsigned ops->size cannot be negative
  [S390] tape block: complete request with correct locking
  [S390] Fix sysdev class file creation.
  [S390] pgtables: Fix race in enable_sie vs. page table ops
  [S390] qdio: remove incorrect memset
  [S390] qdio: prevent double qdio shutdown in case of I/O errors

16 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Tue, 28 Oct 2008 16:42:48 +0000 (09:42 -0700)] 
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: ahci enclosure management bit mask
  libata: ahci enclosure management led sync
  pata_ninja32: suspend/resume support
  libata: Fix LBA48 on pata_it821x RAID volumes.
  libata: clear saved xfer_mode and ncq_enabled on device detach
  sata_sil24: configure max read request size to 4k
  libata: add missing kernel-doc
  libata: fix device iteration bugs
  ahci: Add support for Promise PDC42819
  ata: Switch all my stuff to a common address

16 years agoftrace: fix current_tracer error return
Steven Rostedt [Tue, 28 Oct 2008 14:44:24 +0000 (10:44 -0400)] 
ftrace: fix current_tracer error return

The commit (in linux-tip) c2931e05ec5965597cbfb79ad332d4a29aeceb23
 ( ftrace: return an error when setting a nonexistent tracer )
added useful code that would error when a bad tracer was written into
the current_tracer file.

But this had a bug if the amount written was more than the amount read by
that code. The first iteration would set the tracer correctly, but since
it did not consume the rest of what was written (usually whitespace), the
userspace utility would continue to write what was not consumed. This
second iteration would fail to find a tracer and return -EINVAL. Funny
thing is that the tracer would have already been set.

This patch just consumes all the data that is written to the file.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agoALSA: hda: Add HDA vendor ID for Wolfson Microelectronics
Mark Brown [Tue, 28 Oct 2008 14:50:13 +0000 (14:50 +0000)] 
ALSA: hda: Add HDA vendor ID for Wolfson Microelectronics

Add Wolfson Microelectronics to the HDA vendor ID table.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoALSA: hda - Add another HP model for AD1884A
Takashi Iwai [Tue, 28 Oct 2008 14:39:26 +0000 (15:39 +0100)] 
ALSA: hda - Add another HP model for AD1884A

Added a quirk entry for another HP mobile device with AD1884A codec.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
16 years agoKVM: ia64: Makefile fix for forcing to re-generate asm-offsets.h
Xiantao Zhang [Thu, 23 Oct 2008 02:37:06 +0000 (10:37 +0800)] 
KVM: ia64: Makefile fix for forcing to re-generate asm-offsets.h

To avoid using stale asm-offsets.h.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
16 years agoKVM: Future-proof device assignment ABI
Avi Kivity [Sun, 19 Oct 2008 14:39:45 +0000 (16:39 +0200)] 
KVM: Future-proof device assignment ABI

Reserve some space so we can add more data.

Signed-off-by: Avi Kivity <avi@qumranet.com>
16 years agoKVM: ia64: Fix halt emulation logic
Xiantao Zhang [Thu, 16 Oct 2008 07:58:15 +0000 (15:58 +0800)] 
KVM: ia64: Fix halt emulation logic

Common halt logic was changed by x86 and did not update ia64.  This patch
updates halt for ia64.

Fixes a regression causing guests to hang with more than 2 vcpus.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
16 years agoKVM: Fix guest shared interrupt with in-kernel irqchip
Sheng Yang [Wed, 15 Oct 2008 12:15:06 +0000 (20:15 +0800)] 
KVM: Fix guest shared interrupt with in-kernel irqchip

Every call of kvm_set_irq() should offer an irq_source_id, which is
allocated by kvm_request_irq_source_id(). Based on irq_source_id, we
identify the irq source and implement logical OR for shared level
interrupts.

The allocated irq_source_id can be freed by kvm_free_irq_source_id().

Currently, we support at most sizeof(unsigned long) different irq sources.

[Amit: - rebase to kvm.git HEAD
       - move definition of KVM_USERSPACE_IRQ_SOURCE_ID to common file
       - move kvm_request_irq_source_id to the update_irq ioctl]

[Xiantao: - Add kvm/ia64 stuff and make it work for kvm/ia64 guests]

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
16 years agoKVM: MMU: sync root on paravirt TLB flush
Marcelo Tosatti [Wed, 15 Oct 2008 09:45:08 +0000 (07:45 -0200)] 
KVM: MMU: sync root on paravirt TLB flush

The pvmmu TLB flush handler should request a root sync, similarly to
a native read-write CR3.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
16 years agolockdep: fix irqs on/off ip tracing
Heiko Carstens [Tue, 28 Oct 2008 10:14:58 +0000 (11:14 +0100)] 
lockdep: fix irqs on/off ip tracing

Impact: fix lockdep lock-api-caller output when irqsoff tracing is enabled

81d68a96 "ftrace: trace irq disabled critical timings" added wrappers around
trace_hardirqs_on/off_caller. However these functions use
__builtin_return_address(0) to figure out which function actually disabled
or enabled irqs. The result is that we save the ips of trace_hardirqs_on/off
instead of the real caller. Not very helpful.

However since the patch from Steven the ip already gets passed. So use that
and get rid of __builtin_return_address(0) in these two functions.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years ago[S390] s390: Fix build for !CONFIG_S390_GUEST + CONFIG_VIRTIO_CONSOLE
Christian Borntraeger [Tue, 28 Oct 2008 10:10:22 +0000 (11:10 +0100)] 
[S390] s390: Fix build for !CONFIG_S390_GUEST + CONFIG_VIRTIO_CONSOLE

The s390 kernel does not compile if virtio console is enabled, but guest
support is disabled:

  LD      .tmp_vmlinux1
arch/s390/kernel/built-in.o: In function `setup_arch':
/space/linux-2.5/arch/s390/kernel/setup.c:773: undefined reference to
`s390_virtio_console_init'

The fix is related to
commit 99e65c92f2bbf84f43766a8bf701e36817d62822
Author: Christian Borntraeger <borntraeger@de.ibm.com>
Date:   Fri Jul 25 15:50:04 2008 +0200
    KVM: s390: Fix guest kconfig

Which changed the build process to build kvm_virtio.c only if CONFIG_S390_GUEST
is set. We must ifdef the prototype in the header file accordingly.

Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] No more 4kb stacks.
Heiko Carstens [Tue, 28 Oct 2008 10:10:21 +0000 (11:10 +0100)] 
[S390] No more 4kb stacks.

We got a stack overflow with a small stack configuration on a 32 bit
system. It just looks like as 4kb isn't enough and too dangerous.
So lets get rid of 4kb stacks on 32 bit.

But one thing I completely dislike about the call trace below is that
just for debugging or tracing purposes sprintf gets called (cio_start_key):

/* process condition code */
sprintf(dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT(4, dbf_txt);

But maybe its just me who thinks that this could be done better.

    <4>Kernel stack overflow.
    <4>Modules linked in: dm_multipath sunrpc bonding qeth_l2 dm_mod qeth ccwgroup vmur
    <4>CPU: 1 Not tainted 2.6.27-30.x.20081015-s390default #1
    <4>Process httpd (pid: 3807, task: 20ae2df8, ksp: 1666fb78)
    <4>Krnl PSW : 040c0000 8027098a (number+0xe/0x348)
    <4>           R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:0 CC:0 PM:0
    <4>Krnl GPRS: 00d43318 0027097c 1666f277 9666f270
    <4>           00000000 00000000 0000000a ffffffff
    <4>           9666f270 1666f228 1666f277 1666f098
    <4>           00000002 80270982 80271016 1666f098
    <4>Krnl Code: 8027097ef0340dd0a7f1 srp 3536(4,%r0),2033(%r10),4
    <4>           80270984: 0f00 clcl %r0,%r0
    <4>           80270986a7840001 brc 8,80270988
    <4>          >8027098a: 18ef lr %r14,%r15
    <4>           8027098ca7faff68 ahi %r15,-152
    <4>           80270990: 18bf lr %r11,%r15
    <4>           80270992: 18a2 lr %r10,%r2
    <4>           80270994: 1893 lr %r9,%r3

Modified calltrace with annotated stackframe size of each function:

stackframe size
    |
 0 304 vsnprintf+850 [0x271016]
 1  72 sprintf+74 [0x271522]
 2  56 cio_start_key+262 [0x2d4c16]
 3  56 ccw_device_start_key+222 [0x2dfe92]
 4  56 ccw_device_start+40 [0x2dff28]
 5  48 raw3215_start_io+104 [0x30b0f8]
 6  56 raw3215_write+494 [0x30ba0a]
 7  40 con3215_write+68 [0x30bafc]
 8  40 __call_console_drivers+146 [0x12b0fa]
 9  32 _call_console_drivers+102 [0x12b192]
10  64 release_console_sem+268 [0x12b614]
11 168 vprintk+462 [0x12bca6]
12  72 printk+68 [0x12bfd0]
13 256 __print_symbol+50 [0x15a882]
14  56 __show_trace+162 [0x103d06]
15  32 show_trace+224 [0x103e70]
16  48 show_stack+152 [0x103f20]
17  56 dump_stack+126 [0x104612]
18  96 __alloc_pages_internal+592 [0x175004]
19  80 cache_alloc_refill+776 [0x196f3c]
20  40 __kmalloc+258 [0x1972ae]
21  40 __alloc_skb+94 [0x328086]
22  32 pskb_copy+50 [0x328252]
23  32 skb_realloc_headroom+110 [0x328a72]
24 104 qeth_l2_hard_start_xmit+378 [0x7803bfde]
25  56 dev_hard_start_xmit+450 [0x32ef6e]
26  56 __qdisc_run+390 [0x3425d6]
27  48 dev_queue_xmit+410 [0x331e06]
28  40 ip_finish_output+308 [0x354ac8]
29  56 ip_output+218 [0x355b6e]
30  24 ip_local_out+56 [0x354584]
31 120 ip_queue_xmit+300 [0x355cec]
32  96 tcp_transmit_skb+812 [0x367da8]
33  40 tcp_push_one+158 [0x369fda]
34 112 tcp_sendmsg+852 [0x35d5a0]
35 240 sock_sendmsg+164 [0x32035c]
36  56 kernel_sendmsg+86 [0x32064a]
37  88 sock_no_sendpage+98 [0x322b22]
38 104 tcp_sendpage+70 [0x35cc1e]
39  48 sock_sendpage+74 [0x31eb66]
40  64 pipe_to_sendpage+102 [0x1c4b2e]
41  64 __splice_from_pipe+120 [0x1c5340]
42  72 splice_from_pipe+90 [0x1c57e6]
43  56 generic_splice_sendpage+38 [0x1c5832]
44  48 do_splice_from+104 [0x1c4c38]
45  48 direct_splice_actor+52 [0x1c4c88]
46  80 splice_direct_to_actor+180 [0x1c4f80]
47  72 do_splice_direct+70 [0x1c5112]
48  64 do_sendfile+360 [0x19de18]
49  72 sys_sendfile64+126 [0x19df32]
50 336 sysc_do_restart+18 [0x111a1a]

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] Change default IPL method to IPL_VM.
Heiko Carstens [Tue, 28 Oct 2008 10:10:20 +0000 (11:10 +0100)] 
[S390] Change default IPL method to IPL_VM.

allyesconfig and allmodconfig built kernels have a tape IPL record.
A the vmreader record makes much more sense, since hardly anybody will
ever IPL a kernel from tape. So change the default.
As I side effect I can test these kernels without fiddling around with
the kernel config ;)

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] tape: disable interrupts in tape_open and tape_release
Frank Munzert [Tue, 28 Oct 2008 10:10:19 +0000 (11:10 +0100)] 
[S390] tape: disable interrupts in tape_open and tape_release

Get tape device lock with interrupts disabled. Otherwise lockdep will issue a
warning similar to:

=================================
[ INFO: inconsistent lock state ]
2.6.27 #1
---------------------------------
inconsistent {in-hardirq-W} -> {hardirq-on-W} usage.
vol_id/2903 [HC0[0]:SC0[0]:HE1:SE1] takes:
 (sch->lock){++..}, at: [<000003e00004c7a2>] tape_open+0x42/0x1a4 [tape]
{in-hardirq-W} state was registered at:
  [<000000000007ce5c>] __lock_acquire+0x894/0xa74
  [<000000000007d0ce>] lock_acquire+0x92/0xb8
  [<0000000000345154>] _spin_lock+0x5c/0x9c
  [<0000000000202264>] do_IRQ+0x124/0x1f0
  [<0000000000026610>] io_return+0x0/0x8

irq event stamp: 847
hardirqs last  enabled at (847): [<000000000007aca6>] trace_hardirqs_on+0x2a/0x38
hardirqs last disabled at (846): [<0000000000076ca2>] trace_hardirqs_off+0x2a/0x38
softirqs last  enabled at (0): [<000000000004909e>] copy_process+0x43e/0x11f4
softirqs last disabled at (0): [<0000000000000000>] 0x0

other info that might help us debug this:
1 lock held by vol_id/2903:
 #0:  (&bdev->bd_mutex){--..}, at: [<000000000010e0f4>] do_open+0x78/0x358

stack backtrace:
CPU: 1 Not tainted 2.6.27 #1},
Process vol_id (pid: 2903, task: 000000003d4c0000, ksp: 000000003d4e3b10)
0400000000000000 000000003d4e3830 0000000000000002 0000000000000000
       000000003d4e38d0 000000003d4e3848 000000003d4e3848 00000000000168a8
       0000000000000000 000000003d4e3b10 0000000000000000 0000000000000000
       000000003d4e3830 000000000000000c 000000003d4e3830 000000003d4e38a0
       000000000034aa98 00000000000168a8 000000003d4e3830 000000003d4e3880
Call Trace:
([<000000000001681c>] show_trace+0x138/0x158)
 [<0000000000016902>] show_stack+0xc6/0xf8
 [<00000000000170d4>] dump_stack+0xb0/0xc0
 [<0000000000078810>] print_usage_bug+0x1e8/0x228
 [<000000000007a71c>] mark_lock+0xb14/0xd24
 [<000000000007cd5a>] __lock_acquire+0x792/0xa74
 [<000000000007d0ce>] lock_acquire+0x92/0xb8
 [<0000000000345154>] _spin_lock+0x5c/0x9c
 [<000003e00004c7a2>] tape_open+0x42/0x1a4 [tape]
 [<000003e00005185c>] tapeblock_open+0x98/0xd0 [tape]

Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] appldata: unsigned ops->size cannot be negative
Roel Kluin [Tue, 28 Oct 2008 10:10:18 +0000 (11:10 +0100)] 
[S390] appldata: unsigned ops->size cannot be negative

unsigned ops->size cannot be negative

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] tape block: complete request with correct locking
Frank Munzert [Tue, 28 Oct 2008 10:10:17 +0000 (11:10 +0100)] 
[S390] tape block: complete request with correct locking

__blk_end_request must be called with request queue lock held. We need to use
blk_end_request rather than  __blk_end_request.

Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] Fix sysdev class file creation.
Heiko Carstens [Tue, 28 Oct 2008 10:10:16 +0000 (11:10 +0100)] 
[S390] Fix sysdev class file creation.

Use sysdev_class_create_file() to create create sysdev class attributes
instead of sysfs_create_file(). Using sysfs_create_file() wasn't a very
good idea since the show and store functions have a different amount of
parameters for sysfs files and sysdev class files.
In particular the pointer to the buffer is the last argument and
therefore accesses to random memory regions happened.
Still worked surprisingly well until we got a kernel panic.

Cc: stable@kernel.org
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] pgtables: Fix race in enable_sie vs. page table ops
Christian Borntraeger [Tue, 28 Oct 2008 10:10:15 +0000 (11:10 +0100)] 
[S390] pgtables: Fix race in enable_sie vs. page table ops

The current enable_sie code sets the mm->context.pgstes bit to tell
dup_mm that the new mm should have extended page tables. This bit is also
used by the s390 specific page table primitives to decide about the page
table layout - which means context.pgstes has two meanings. This can cause
any kind of bugs. For example  - e.g. shrink_zone can call
ptep_clear_flush_young while enable_sie is running. ptep_clear_flush_young
will test for context.pgstes. Since enable_sie changed that value of the old
struct mm without changing the page table layout ptep_clear_flush_young will
do the wrong thing.
The solution is to split pgstes into two bits
- one for the allocation
- one for the current state

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] qdio: remove incorrect memset
Jan Glauber [Tue, 28 Oct 2008 10:10:14 +0000 (11:10 +0100)] 
[S390] qdio: remove incorrect memset

Remove the memset since zeroing the string is not needed and use
snprintf instead of sprintf.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] qdio: prevent double qdio shutdown in case of I/O errors
Jan Glauber [Tue, 28 Oct 2008 10:10:13 +0000 (11:10 +0100)] 
[S390] qdio: prevent double qdio shutdown in case of I/O errors

In case of I/O errors on a qdio subchannel qdio_shutdown may be
called twice by the qdio driver and by zfcp. Remove the
superfluous shutdown from qdio and let the upper layer driver
handle the error condition.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years agolockdep: minor fix for debug_show_all_locks()
qinghuang feng [Tue, 28 Oct 2008 09:24:28 +0000 (17:24 +0800)] 
lockdep: minor fix for debug_show_all_locks()

When we failed to get tasklist_lock eventually (count equals 0),
we should only print " ignoring it.\n", and not print
" locked it.\n" needlessly.

Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agotracing: fix a build error on alpha
Frederic Weisbecker [Tue, 28 Oct 2008 08:43:26 +0000 (09:43 +0100)] 
tracing: fix a build error on alpha

Impact: build fix on Alpha

When tracing is enabled, some arch have included <linux/irqflags.h>
on their <asm/system.h> but others like alpha or m68k don't.

Build error on alpha:

kernel/trace/trace.c: In function 'tracing_cpumask_write':
kernel/trace/trace.c:2145: error: implicit declaration of function 'raw_local_irq_disable'
kernel/trace/trace.c:2162: error: implicit declaration of function 'raw_local_irq_enable'

Tested on Alpha through a cross-compiler (should correct a similar issue on m68k).

Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86, memory hotplug: remove wrong -1 in calling init_memory_mapping()
Shaohua Li [Mon, 27 Oct 2008 20:03:18 +0000 (13:03 -0700)] 
x86, memory hotplug: remove wrong -1 in calling init_memory_mapping()

Impact: fix crash with memory hotplug

Shuahua Li found:

| I just did some experiments on a desktop for memory hotplug and this bug
| triggered a crash in my test.
|
| Yinghai's suggestion also fixed the bug.

We don't need to round it, just remove that extra -1

Signed-off-by: Yinghai <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>