8 years agoMerge branch 'stable/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad...
Linus Torvalds [Sat, 14 Aug 2010 01:06:15 +0000]
Merge branch 'stable/fixes' of git://git./linux/kernel/git/konrad/ibft-2.6

* 'stable/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft-2.6:
  firmware: ibft depends on SCSI
  ibft: Kernel oops when rmmoding iscsi_ibft with no iBFT present.

8 years agoMerge git://git.infradead.org/~dwmw2/ideapad-2.6
Linus Torvalds [Sat, 14 Aug 2010 01:04:52 +0000]
Merge git://git.infradead.org/~dwmw2/ideapad-2.6

* git://git.infradead.org/~dwmw2/ideapad-2.6:
  Call acpi_video_register() in intel_opregion_init() failure path
  ideapad: Only allow camera state to be set to 0 or 1
  ideapad: Stop using global variables
  Add Lenovo ideapad driver

8 years agoMerge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 14 Aug 2010 01:00:25 +0000]
Merge branch 'x86-uv-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, UV: Make kdump avoid stack dumps - fix !CONFIG_KEXEC breakage
  x86, UV: Initialize BAU hub map
  x86, UV: Make kdump avoid stack dumps

8 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Sat, 14 Aug 2010 00:59:26 +0000]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: clean up compiler warning in start_this_handle()

8 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Sat, 14 Aug 2010 00:59:09 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] acpi-cpufreq: add missing __percpu markup

8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Sat, 14 Aug 2010 00:58:54 +0000]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  watchdog: hpwdt (12/12): Make NMI decoding a compile-time option
  watchdog: hpwdt (11/12): move NMI-decoding init and exit to seperate functions
  watchdog: hpwdt (10/12): Use "decoding" instead of "sourcing"
  watchdog: hpwdt (9/12): hpwdt_pretimeout reorganization
  watchdog: hpwdt (8/12): implement WDIOC_GETTIMELEFT
  watchdog: hpwdt (7/12): allow full range of timer values supported by hardware
  watchdog: hpwdt (6/12): Introduce SECS_TO_TICKS() macro
  watchdog: hpwdt (5/12): Make x86 assembly ifdef guard more strict
  watchdog: hpwdt (4/12): Despecificate driver from iLO2
  watchdog: hpwdt (3/12): Group NMI sourcing specific items together
  watchdog: hpwdt (2/12): Group options that affect watchdog behavior together
  watchdog: hpwdt (1/12): clean-up include-files.

8 years agoMerge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
Linus Torvalds [Sat, 14 Aug 2010 00:57:56 +0000]
Merge branch 'kbuild' of git://git./linux/kernel/git/mmarek/kbuild-2.6

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  setlocalversion: fix version for untaged nontip mercurial revs
  Fix CONFIG_CROSS_COMPILE issue in .config

8 years agoMerge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
Linus Torvalds [Sat, 14 Aug 2010 00:56:27 +0000]
Merge branch 'kconfig' of git://git./linux/kernel/git/mmarek/kbuild-2.6

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  kconfig: Fix warning: ignoring return value of 'fgets'
  kconfig: Fix warning: ignoring return value of 'fwrite'
  nconfig: Fix segfault when menu is empty
  kconfig: fix tristate choice with minimal config
  kconfig: fix savedefconfig for tristate choices

8 years agoMerge branch 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic...
Linus Torvalds [Sat, 14 Aug 2010 00:52:35 +0000]
Merge branch 'bkl/ioctl' of git://git./linux/kernel/git/frederic/random-tracing

* 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing:
  bkl: Remove locked .ioctl file operation
  v4l: Remove reference to bkl ioctl in compat ioctl handling
  logfs: kill BKL

8 years agopcmcia: xirc2ps_cs bugfix
Dominik Brodowski [Fri, 13 Aug 2010 18:33:34 +0000]
pcmcia: xirc2ps_cs bugfix

We need to set io_lines to 10 unconditionally.

Reported-by: Komuro <komurojun-mbn@nifty.com>
CC: netdev@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoNOMMU: Remove an extraneous no_printk()
David Howells [Fri, 13 Aug 2010 10:25:12 +0000]
NOMMU: Remove an extraneous no_printk()

Remove an extraneous no_printk() in mm/nommu.c that got missed when the
function got generalised from several things that used it in commit
12fdff3fc248 ("Add a dummy printk function for the maintenance of unused
printks").

Without this, the following error is observed:

  mm/nommu.c:41: error: conflicting types for 'no_printk'
  include/linux/kernel.h:314: error: previous definition of 'no_printk' was here

Reported-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoMark arguments to certain syscalls as being const
David Howells [Wed, 11 Aug 2010 10:26:22 +0000]
Mark arguments to certain syscalls as being const

Mark arguments to certain system calls as being const where they should be but
aren't.  The list includes:

 (*) The filename arguments of various stat syscalls, execve(), various utimes
     syscalls and some mount syscalls.

 (*) The filename arguments of some syscall helpers relating to the above.

 (*) The buffer argument of various write syscalls.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agobkl: Remove locked .ioctl file operation
Arnd Bergmann [Sat, 3 Jul 2010 22:15:10 +0000]
bkl: Remove locked .ioctl file operation

The last user is gone, so we can safely remove this

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: John Kacur <jkacur@redhat.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

8 years agov4l: Remove reference to bkl ioctl in compat ioctl handling
Frederic Weisbecker [Fri, 13 Aug 2010 20:29:03 +0000]
v4l: Remove reference to bkl ioctl in compat ioctl handling

There are no more users of struct file_operations:ioctl. These
can be safely removed.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>

8 years agologfs: kill BKL
Arnd Bergmann [Tue, 27 Apr 2010 20:30:06 +0000]
logfs: kill BKL

logfs does not need the BKL, so use ->unlocked_ioctl instead
of ->ioctl in file operations.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Joern Engel <joern@logfs.org>
[ fixed trivial conflict ]
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

8 years agowatchdog: hpwdt (12/12): Make NMI decoding a compile-time option
dann frazier [Tue, 27 Jul 2010 23:51:02 +0000]
watchdog: hpwdt (12/12): Make NMI decoding a compile-time option

hpwdt is quite functional without the NMI decoding feature.
This change lets users disable the NMI portion at compile-time
via the new HPWDT_NMI_DECODING config option.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (11/12): move NMI-decoding init and exit to seperate functions
dann frazier [Wed, 28 Jul 2010 18:38:43 +0000]
watchdog: hpwdt (11/12): move NMI-decoding init and exit to seperate functions

Move NMI-decoding initialisation and exit code to seperate functions so that
we can ifdef-out parts of it in the future.

Also, this is for a device, so let's use dev_info instead of printk.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (10/12): Use "decoding" instead of "sourcing"
dann frazier [Tue, 27 Jul 2010 23:51:01 +0000]
watchdog: hpwdt (10/12): Use "decoding" instead of "sourcing"

The term "decoding" more clearly explains what hpwdt is doing. It isn't
just finding the source of the interrupt, but rather aids in decoding what
the interrupt means.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (9/12): hpwdt_pretimeout reorganization
dann frazier [Tue, 27 Jul 2010 23:50:49 +0000]
watchdog: hpwdt (9/12): hpwdt_pretimeout reorganization

Reorganize this function to remove excess indentation and highlight
the single return code. (No functional change).

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (8/12): implement WDIOC_GETTIMELEFT
dann frazier [Wed, 2 Jun 2010 22:23:41 +0000]
watchdog: hpwdt (8/12): implement WDIOC_GETTIMELEFT

Let applications check the amount of time left before the watchdog will fire.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (7/12): allow full range of timer values supported by hardware
dann frazier [Wed, 2 Jun 2010 22:23:40 +0000]
watchdog: hpwdt (7/12): allow full range of timer values supported by hardware

The hpwdt timer is a 16 bit value with 128ms resolution.
Let applications use this entire range.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (6/12): Introduce SECS_TO_TICKS() macro
dann frazier [Wed, 2 Jun 2010 22:23:39 +0000]
watchdog: hpwdt (6/12): Introduce SECS_TO_TICKS() macro

Define a macro to convert from seconds to timer ticks.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (5/12): Make x86 assembly ifdef guard more strict
dann frazier [Tue, 27 Jul 2010 23:50:59 +0000]
watchdog: hpwdt (5/12): Make x86 assembly ifdef guard more strict

The 32-bit assembly is guarded by an #ifndef CONFIG_X86_64. Kconfig prevents
us from building this driver on !X86, so that happens to suffice - but we
should really lock it down to #ifdef CONFIG_X86_32.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (4/12): Despecificate driver from iLO2
dann frazier [Tue, 27 Jul 2010 23:50:57 +0000]
watchdog: hpwdt (4/12): Despecificate driver from iLO2

This driver supports both iLO2 and iLO3, but our user-visible strings
currently only reference iLO2. Let's just call it "iLO2+" to avoid having
to update strings for each iLO generation. This driver doesn't support
iLO ASICs prior to iLO2, but that is sufficiently explained in Kconfig.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (3/12): Group NMI sourcing specific items together
dann frazier [Tue, 27 Jul 2010 23:50:54 +0000]
watchdog: hpwdt (3/12): Group NMI sourcing specific items together

* Group together includes specific to NMI sourcing
* Group defines only used by NMI sourcing together
* Group declarations specific to NMI sourcing together

This gives a clean seperation of watchdog specific items and
NMI sourcing specific items (which is needed for making it
possible to build hpwdt without the NMI functionality).

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (2/12): Group options that affect watchdog behavior together
dann frazier [Tue, 27 Jul 2010 23:50:54 +0000]
watchdog: hpwdt (2/12): Group options that affect watchdog behavior together

Reorganization only.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agowatchdog: hpwdt (1/12): clean-up include-files.
dann frazier [Tue, 27 Jul 2010 23:50:50 +0000]
watchdog: hpwdt (1/12): clean-up include-files.

* remove unnecessary includes
* We use a spinlock, but lacked the include
* We need bitops.h for test_and_set_bit/clear_bit

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

8 years agoInput: fix faulty XXinput_* calls
Daniel Mack [Thu, 12 Aug 2010 16:22:18 +0000]
Input: fix faulty XXinput_* calls

They've been introduced by 987a6c02 ("Input: switch to input_abs_*()
access functions") and they appear to be some kind of debug left-over.

[Dmitry Torokhov: these are my fault - I added XX prefixes in places where
 I wanted to do additional review of the code but failed to actually do
 that in these particular instances.]

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agodma-mapping: fix build errors on !HAS_DMA architectures
Heiko Carstens [Fri, 13 Aug 2010 07:39:18 +0000]
dma-mapping: fix build errors on !HAS_DMA architectures

commit 4565f0170dfc849b3629c27d769db800467baa62 "dma-mapping: unify
dma_get_cache_alignment implementations" causes build errors on
!HAS_DMA architectures/platforms like s390 and sun3:

include/linux/dma-mapping.h:145: error: static declaration of 'dma_get_cache_alignment' follows non-static declaration
include/asm-generic/dma-mapping-broken.h:73: error: previous declaration of 'dma_get_cache_alignment' was here

Fix this by adding an explicit ifdef.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agotime: Workaround gcc loop optimization that causes 64bit div errors
John Stultz [Fri, 13 Aug 2010 18:30:58 +0000]
time: Workaround gcc loop optimization that causes 64bit div errors

Early 4.3 versions of gcc apparently aggressively optimize the raw
time accumulation loop, replacing it with a divide.

On 32bit systems, this causes the following link errors:
undefined reference to `__umoddi3'
undefined reference to `__udivdi3'

The gcc issue has been fixed in 4.4 and greater.

This patch replaces the accumulation loop with a do_div, as suggested
by Linus.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
CC: Jason Wessel <jason.wessel@windriver.com>
CC: Larry Finger <Larry.Finger@lwfinger.net>
CC: Ingo Molnar <mingo@elte.hu>
CC: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoMerge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Fri, 13 Aug 2010 17:54:04 +0000]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] partitions: fix build error in ibm partition detection code
  [S390] appldata: fix dev_get_stats 64 bit conversion
  [S390] wire up prlimit64 and fanotify* syscalls
  [S390] zcrypt: fix Kconfig dependencies
  [S390] sys_personality: follow u_long to unsigned int conversion
  [S390] dasd: fix format string types

8 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Fri, 13 Aug 2010 17:44:24 +0000]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
  V4L/DVB: v4l2-ctrls.c: needs to include slab.h
  V4L/DVB: fix Kconfig to depends on VIDEO_IR
  V4L/DVB: Fix IR_CORE dependencies

8 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
Linus Torvalds [Fri, 13 Aug 2010 17:43:50 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/jlbec/ocfs2

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
  O2net: Disallow o2net accept connection request from itself.
  ocfs2/dlm: remove potential deadlock -V3
  ocfs2/dlm: avoid incorrect bit set in refmap on recovery master
  Fix the nested PR lock calling issue in ACL
  ocfs2: Count more refcount records in file system fragmentation.
  ocfs2 fix o2dlm dlm run purgelist (rev 3)
  ocfs2/dlm: fix a dead lock
  ocfs2: do not overwrite error codes in ocfs2_init_acl

8 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 13 Aug 2010 17:39:30 +0000]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (30 commits)
  perf: Add back list_head data types
  perf ui hist browser: Fixup key bindings
  perf ui browser: Add ui_browser__show counterpart: __hide
  perf annotate: Cycle thru sorted lines with samples
  perf ui: Make SPACE work as PGDN in all browsers
  perf annotate: Sort by hottest lines in the TUI
  perf ui: Complete the breakdown of util/newt.c
  perf ui: Move hists browser to util/ui/browsers/
  perf symbols: Ignore mapping symbols on ARM
  perf ui: Move map browser to util/ui/browsers/
  perf ui: Move annotate browser to util/ui/browsers/
  perf ui: Move ui_progress routines to separate file in util/ui/
  perf ui: Move ui_helpline routines to separate file in util/ui/
  perf ui: Shorten ui_browser member names
  perf, x86: P4 PMU -- update nmi irq statistics and unmask lvt entry properly
  perf ui: Start breaking down newt.c into multiple files
  perf tui: Introduce list_head based generic ui_browser refresh routine
  perf probe: Fix memory leaks in add_perf_probe_events
  perf probe: Fix to copy the type for raw parameters
  perf report: Speed up exit path
  ...

8 years agoMerge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 13 Aug 2010 17:38:37 +0000]
Merge branch 'x86-uv-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, UV: Initialize BAU MMRs only on hubs with cpus
  x86, UV: Modularize BAU send and wait
  x86, UV: BAU broadcast to the local hub
  x86, UV: Correct BAU regular message type
  x86, UV: Remove BAU check for stay-busy
  x86, UV: Correct BAU discovery of hubs and sockets
  x86, UV: Correct BAU software acknowledge
  x86, UV: BAU structure rearranging
  x86, UV: Shorten access to BAU statistics structure
  x86, UV: Disable BAU on network congestion
  x86, UV: BAU tunables into a debugfs file
  x86, UV: Calculate BAU destination timeout

8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Fri, 13 Aug 2010 17:38:12 +0000]
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)
  ctcm: rename READ/WRITE defines to avoid redefinitions
  claw: rename READ/WRITE defines to avoid redefinitions
  phylib: available for any speed ethernet
  can: add limit for nframes and clean up signed/unsigned variables
  pkt_sched: Check .walk and .leaf class handlers
  pkt_sched: Fix sch_sfq vs tc_modify_qdisc oops
  caif-spi: Bugfix SPI_DATA_POS settings were inverted.
  caif: Bugfix - Increase default headroom size for control channel.
  net: make netpoll_rx return bool for !CONFIG_NETPOLL
  Bluetooth: Use 3-DH5 payload size for default ERTM max PDU size
  Bluetooth: Fix incorrect setting of remote_tx_win for L2CAP ERTM
  Bluetooth: Change default L2CAP ERTM retransmit timeout
  Bluetooth: Fix endianness issue with L2CAP MPS configuration
  net: Use NET_XMIT_SUCCESS where possible.
  isdn: mISDN: call pci_disable_device() if pci_probe() failed
  isdn: avm: call pci_disable_device() if pci_probe() failed
  isdn: avm: call pci_disable_device() if pci_probe() failed
  usbnet: rx_submit() should return an error code.
  pkt_sched: Add some basic qdisc class ops verification. Was: [PATCH] sfq: add dummy bind/unbind handles
  pkt_sched: sch_sfq: Add dummy unbind_tcf and put handles. Was: [PATCH] sfq: add dummy bind/unbind handles
  ...

8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Fri, 13 Aug 2010 17:37:30 +0000]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [NFS] Set CONFIG_KEYS when CONFIG_NFS_USE_KERNEL_DNS is set
  AFS: Implement an autocell mount capability [ver #2]
  DNS: If the DNS server returns an error, allow that to be cached [ver #2]
  NFS: Use kernel DNS resolver [ver #2]
  cifs: update README to include details about 'fsc' option

8 years agoMerge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux...
Linus Torvalds [Fri, 13 Aug 2010 17:35:48 +0000]
Merge branch 'x86/urgent' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, asm: Use a lower case name for the end macro in atomic64_386_32.S
  x86, asm: Refactor atomic64_386_32.S to support old binutils and be cleaner
  x86: Document __phys_reloc_hide() usage in __pa_symbol()
  x86, apic: Map the local apic when parsing the MP table.

8 years agox86: don't send SIGBUS for kernel page faults
Linus Torvalds [Fri, 13 Aug 2010 16:49:20 +0000]
x86: don't send SIGBUS for kernel page faults

It's wrong for several reasons, but the most direct one is that the
fault may be for the stack accesses to set up a previous SIGBUS.  When
we have a kernel exception, the kernel exception handler does all the
fixups, not some user-level signal handler.

Even apart from the nested SIGBUS issue, it's also wrong to give out
kernel fault addresses in the signal handler info block, or to send a
SIGBUS when a system call already returns EFAULT.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agomm: fix missing page table unmap for stack guard page failure case
Linus Torvalds [Fri, 13 Aug 2010 16:24:04 +0000]
mm: fix missing page table unmap for stack guard page failure case

.. which didn't show up in my tests because it's a no-op on x86-64 and
most other architectures.  But we enter the function with the last-level
page table mapped, and should unmap it at exit.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years ago[CPUFREQ] acpi-cpufreq: add missing __percpu markup
Namhyung Kim [Fri, 13 Aug 2010 14:00:11 +0000]
[CPUFREQ] acpi-cpufreq: add missing __percpu markup

acpi_perf_data is a percpu pointer but was missing __percpu markup.
Add it.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Dave Jones <davej@redhat.com>

8 years ago[S390] partitions: fix build error in ibm partition detection code
Heiko Carstens [Fri, 13 Aug 2010 08:06:43 +0000]
[S390] partitions: fix build error in ibm partition detection code

9c867fbe "partitions: fix sometimes unreadable partition strings" coverted
one line within the ibm partition code incorrectly. Fix this to get rid of
a build error.

fs/partitions/ibm.c: In function 'ibm_partition':
[...]
fs/partitions/ibm.c:185: error: too many arguments to function 'strlcat'

Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

8 years ago[S390] appldata: fix dev_get_stats 64 bit conversion
Heiko Carstens [Fri, 13 Aug 2010 08:06:42 +0000]
[S390] appldata: fix dev_get_stats 64 bit conversion

Fix this warning:

arch/s390/appldata/appldata_net_sum.c: In function 'appldata_get_net_sum_data':
arch/s390/appldata/appldata_net_sum.c:89: warning: initialization from incompatible pointer type

which was introduced with be1f3c2c027cc5ad735df6a45a542ed1db7ec48b
"net: Enable 64-bit net device statistics on 32-bit architectures"

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

8 years ago[S390] wire up prlimit64 and fanotify* syscalls
Heiko Carstens [Fri, 13 Aug 2010 08:06:41 +0000]
[S390] wire up prlimit64 and fanotify* syscalls

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

8 years ago[S390] zcrypt: fix Kconfig dependencies
Heiko Carstens [Fri, 13 Aug 2010 08:06:40 +0000]
[S390] zcrypt: fix Kconfig dependencies

warning: (ZCRYPT && CRYPTO && CRYPTO_HW && S390 && ZCRYPT=y) selects
ZCRYPT_MONOLITHIC which has unmet direct dependencies (ZCRYPT=m)

ZCRYPT_MONOLITHIC should not depend on ZCRYPT="m" when it gets
selected if ZCRYPT="y".

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

8 years ago[S390] sys_personality: follow u_long to unsigned int conversion
Heiko Carstens [Fri, 13 Aug 2010 08:06:39 +0000]
[S390] sys_personality: follow u_long to unsigned int conversion

commit 485d527686850d68a0e9006dd9904f19f122485e "sys_personality: change
sys_personality() to accept "unsigned int" instead of u_long" changed
the syscall interface for sys_personality.
Just follow the common code change in our arch code to avoid confusion.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

8 years ago[S390] dasd: fix format string types
Heiko Carstens [Fri, 13 Aug 2010 08:06:38 +0000]
[S390] dasd: fix format string types

Get rid of these warnings:

drivers/s390/block/dasd.c: In function '__dasd_device_check_expire':
drivers/s390/block/dasd.c:1330: warning: format '%i' expects type 'int', but argument 4 has type 'long unsigned int'
drivers/s390/block/dasd.c:1337: warning: format '%i' expects type 'int', but argument 4 has type 'long unsigned int'

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

8 years agomm: keep a guard page below a grow-down stack segment
Linus Torvalds [Fri, 13 Aug 2010 00:54:33 +0000]
mm: keep a guard page below a grow-down stack segment

This is a rather minimally invasive patch to solve the problem of the
user stack growing into a memory mapped area below it.  Whenever we fill
the first page of the stack segment, expand the segment down by one
page.

Now, admittedly some odd application might _want_ the stack to grow down
into the preceding memory mapping, and so we may at some point need to
make this a process tunable (some people might also want to have more
than a single page of guarding), but let's try the minimal approach
first.

Tested with trivial application that maps a single page just below the
stack, and then starts recursing.  Without this, we will get a SIGSEGV
_after_ the stack has smashed the mapping.  With this patch, we'll get a
nice SIGBUS just as the stack touches the page just above the mapping.

Requested-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoCall acpi_video_register() in intel_opregion_init() failure path
David Woodhouse [Thu, 12 Aug 2010 23:56:54 +0000]
Call acpi_video_register() in intel_opregion_init() failure path

If i915 opregion is present, the acpi_video driver doesn't register
itself immediately; it defers that until the i915 opregion code is done.
But if that *fails*, the acpi_video driver was never getting registered.
And thus I have no backlight support on my Lenovo IdeaPad S10-3.

Call acpi_video_register() on the failure path, and it works again.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Matthew Garrett <mjg@redhat.com>

8 years agoctcm: rename READ/WRITE defines to avoid redefinitions
Ursula Braun [Thu, 12 Aug 2010 01:58:28 +0000]
ctcm: rename READ/WRITE defines to avoid redefinitions

READ/WRITE seems to be a bit too generic for defines in a device
driver. Just rename them to CTCM_READ/CTCM_WRITE to avoid warnings.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

8 years agoclaw: rename READ/WRITE defines to avoid redefinitions
Heiko Carstens [Thu, 12 Aug 2010 01:58:27 +0000]
claw: rename READ/WRITE defines to avoid redefinitions

READ/WRITE seems to be a bit too generic for defines in a device driver.
Just rename them to READ_CHANNEL/WRITE_CHANNEL which should suffice.

Fixes this:

In file included from drivers/s390/net/claw.c:93:
drivers/s390/net/claw.h:78:1: warning: "WRITE" redefined
In file included from /home2/heicarst/linux-2.6/arch/s390/include/asm/debug.h:12,
                 from drivers/s390/net/claw.c:68:
include/linux/fs.h:156:1: warning: this is the location of the previous definition

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

8 years agosetlocalversion: fix version for untaged nontip mercurial revs
Milton Miller [Thu, 22 Jul 2010 15:19:38 +0000]
setlocalversion: fix version for untaged nontip mercurial revs

The manpage for cut says it will return all lines without the delimiter
unless -s is specified.

When I backed up my mecurial tree to generate modules, I found that the
scm part of localversion was turning up blank.

Signed-off-by: Milton Miller <miltonm@bga.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: "Michał Górny" <gentoo@mgorny.alt.pl>
Signed-off-by: Michal Marek <mmarek@suse.cz>

8 years agokconfig: Fix warning: ignoring return value of 'fgets'
Jean Sacren [Wed, 4 Aug 2010 22:03:16 +0000]
kconfig: Fix warning: ignoring return value of 'fgets'

This fix facilitates fgets() either it returns on success or on error or
when end of file occurs.

Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

8 years agokconfig: Fix warning: ignoring return value of 'fwrite'
Jean Sacren [Wed, 4 Aug 2010 22:01:02 +0000]
kconfig: Fix warning: ignoring return value of 'fwrite'

This fix facilitates fwrite() in both confdata.c and expr.c, either it
succeeds in writing, or an error occurs, or the end of file is reached.

Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

8 years agonconfig: Fix segfault when menu is empty
Andrej Gelenberg [Mon, 2 Aug 2010 09:59:31 +0000]
nconfig: Fix segfault when menu is empty

nconf crush with segfault if press right arrow in empty menu.

Signed-off-by: Andrej Gelenberg <andrej.gelenberg@udo.edu>
Signed-off-by: Michal Marek <mmarek@suse.cz>

8 years agoRevert "fsnotify: store struct file not struct path"
Linus Torvalds [Thu, 12 Aug 2010 21:23:04 +0000]
Revert "fsnotify: store struct file not struct path"

This reverts commit 3bcf3860a4ff9bbc522820b4b765e65e4deceb3e (and the
accompanying commit c1e5c954020e "vfs/fsnotify: fsnotify_close can delay
the final work in fput" that was a horribly ugly hack to make it work at
all).

The 'struct file' approach not only causes that disgusting hack, it
somehow breaks pulseaudio, probably due to some other subtlety with
f_count handling.

Fix up various conflicts due to later fsnotify work.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoperf: Add back list_head data types
Ingo Molnar [Thu, 12 Aug 2010 19:50:00 +0000]
perf: Add back list_head data types

This commit:

 de5d9bf: Move list types from <linux/list.h> to <linux/types.h>.

Moved the list head data types out of list.h, breaking the build.
Add them to the perf types.h as well.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

8 years agoMerge branch 'linus' into perf/urgent
Ingo Molnar [Thu, 12 Aug 2010 19:38:56 +0000]
Merge branch 'linus' into perf/urgent

Merge reason: Fix upstream breakage introduced by:

 de5d9bf: Move list types from <linux/list.h> to <linux/types.h>.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

8 years agox86, UV: Make kdump avoid stack dumps - fix !CONFIG_KEXEC breakage
Cliff Wickman [Mon, 9 Aug 2010 21:11:22 +0000]
x86, UV: Make kdump avoid stack dumps - fix !CONFIG_KEXEC breakage

This replaces Version 1 of this patch, which broke the build when
CONFIG_KEXEC and CONFIG_CRASH_DUMP were configured off.  In that case
the storage for the 'in_crash_kexec' flag was never built.

This version defines that flag as 0 if CONFIG_KEXEC is not set.
The patch is tested with all combinations of those two options.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <E1OiZcw-0001Hb-2g@eag09.americas.sgi.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

8 years ago[NFS] Set CONFIG_KEYS when CONFIG_NFS_USE_KERNEL_DNS is set
Steve French [Thu, 12 Aug 2010 18:16:45 +0000]
[NFS] Set CONFIG_KEYS when CONFIG_NFS_USE_KERNEL_DNS is set

Previous patch relied on DNS_RESOLVER setting CONFIG_KEYS
but needs to be selected in NFS config when using the new
DNS resolver

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
CC: David Howells <dhowells@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

8 years agoV4L/DVB: v4l2-ctrls.c: needs to include slab.h
Randy Dunlap [Mon, 9 Aug 2010 17:56:35 +0000]
V4L/DVB: v4l2-ctrls.c: needs to include slab.h

v4l2-ctrls.c needs to include slab.h to prevent build errors:

drivers/media/video/v4l2-ctrls.c:766: error: implicit declaration of function 'kzalloc'
drivers/media/video/v4l2-ctrls.c:786: error: implicit declaration of function 'kfree'
drivers/media/video/v4l2-ctrls.c:1528: error: implicit declaration of function 'kmalloc'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

8 years agoV4L/DVB: fix Kconfig to depends on VIDEO_IR
Mauro Carvalho Chehab [Mon, 9 Aug 2010 17:45:02 +0000]
V4L/DVB: fix Kconfig to depends on VIDEO_IR

warning: (VIDEO_BT848 && MEDIA_SUPPORT && VIDEO_CAPTURE_DRIVERS && VIDEO_DEV && PCI && I2C && VIDEO_V4L2 && INPUT || VIDEO_SAA7134 && MEDIA_SUPPORT && VIDEO_CAPTURE_DRIVERS && VIDEO_V4L2 && VIDEO_DEV && PCI && I2C && INPUT || VIDEO_CX88 && MEDIA_SUPPORT && VIDEO_CAPTURE_DRIVERS && VIDEO_V4L2 && VIDEO_DEV && PCI && I2C && INPUT || VIDEO_IVTV && MEDIA_SUPPORT && VIDEO_CAPTURE_DRIVERS && VIDEO_V4L2 && PCI && I2C && INPUT || VIDEO_CX18 && MEDIA_SUPPORT && VIDEO_CAPTURE_DRIVERS && VIDEO_V4L2 && DVB_CORE && PCI && I2C && EXPERIMENTAL && INPUT || VIDEO_EM28XX && MEDIA_SUPPORT && VIDEO_CAPTURE_DRIVERS && VIDEO_V4L2 && V4L_USB_DRIVERS && USB && VIDEO_DEV && I2C && INPUT || VIDEO_TLG2300 && MEDIA_SUPPORT && VIDEO_CAPTURE_DRIVERS && VIDEO_V4L2 && V4L_USB_DRIVERS && USB && VIDEO_DEV && I2C && INPUT && SND && DVB_CORE || VIDEO_CX231XX && MEDIA_SUPPORT && VIDEO_CAPTURE_DRIVERS && VIDEO_V4L2 && V4L_USB_DRIVERS && USB && VIDEO_DEV && I2C && INPUT || DVB_BUDGET_CI && MEDIA_SUPPORT && DVB_CAPTURE_DRIVERS && DVB_CORE && DVB_BUDGET_CORE && I2C && INPUT || DVB_DM1105 && MEDIA_SUPPORT && DVB_CAPTURE_DRIVERS && DVB_CORE && PCI && I2C && INPUT || VIDEO_GO7007 && STAGING && !STAGING_EXCLUDE_BUILD && VIDEO_DEV && PCI && I2C && INPUT && SND || VIDEO_CX25821 && STAGING && !STAGING_EXCLUDE_BUILD && DVB_CORE && VIDEO_DEV && PCI && I2C && INPUT) selects VIDEO_IR which has unmet direct dependencies (IR_CORE)

Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

8 years agoV4L/DVB: Fix IR_CORE dependencies
Mauro Carvalho Chehab [Mon, 9 Aug 2010 13:07:20 +0000]
V4L/DVB: Fix IR_CORE dependencies

As pointed by Randy Dunlap <randy.dunlap@oracle.com>:
> ERROR: "ir_keydown" [drivers/media/video/ir-kbd-i2c.ko] undefined!
> ERROR: "__ir_input_register" [drivers/media/video/ir-kbd-i2c.ko] undefined!
> ERROR: "get_rc_map" [drivers/media/video/ir-kbd-i2c.ko] undefined!
> ERROR: "ir_input_unregister" [drivers/media/video/ir-kbd-i2c.ko] undefined!
> ERROR: "get_rc_map" [drivers/media/video/cx88/cx88xx.ko] undefined!
> ERROR: "ir_repeat" [drivers/media/video/cx88/cx88xx.ko] undefined!
> ERROR: "ir_input_unregister" [drivers/media/video/cx88/cx88xx.ko] undefined!
> ERROR: "ir_keydown" [drivers/media/video/cx88/cx88xx.ko] undefined!
> ERROR: "__ir_input_register" [drivers/media/video/cx88/cx88xx.ko] undefined!
> ERROR: "get_rc_map" [drivers/media/video/bt8xx/bttv.ko] undefined!
> ERROR: "ir_input_unregister" [drivers/media/video/bt8xx/bttv.ko] undefined!
> ERROR: "__ir_input_register" [drivers/media/video/bt8xx/bttv.ko] undefined!
> ERROR: "ir_g_keycode_from_table" [drivers/media/IR/ir-common.ko] undefined!
>
>
> #5101:
> (.text+0x8306e2): undefined reference to `ir_core_debug'
> (.text+0x830729): undefined reference to `ir_core_debug'
> ir-functions.c:(.text+0x830906): undefined reference to `ir_core_debug'
> (.text+0x8309d8): undefined reference to `ir_g_keycode_from_table'
> (.text+0x830acf): undefined reference to `ir_core_debug'
> (.text+0x830b92): undefined reference to `ir_core_debug'
> (.text+0x830bef): undefined reference to `ir_core_debug'
> (.text+0x830c6a): undefined reference to `ir_core_debug'
> (.text+0x830cf7): undefined reference to `ir_core_debug'
> budget-ci.c:(.text+0x89f5c8): undefined reference to `ir_keydown'
> budget-ci.c:(.text+0x8a0c58): undefined reference to `get_rc_map'
> budget-ci.c:(.text+0x8a0c80): undefined reference to `__ir_input_register'
> budget-ci.c:(.text+0x8a0ee0): undefined reference to `get_rc_map'
> budget-ci.c:(.text+0x8a11cd): undefined reference to `ir_input_unregister'
> (.text+0x8a8adb): undefined reference to `ir_input_unregister'
> dvb-usb-remote.c:(.text+0x8a9188): undefined reference to `get_rc_map'
> dvb-usb-remote.c:(.text+0x8a91b1): undefined reference to `__ir_input_register'
> dvb-usb-remote.c:(.text+0x8a9238): undefined reference to `get_rc_map'
> dib0700_core.c:(.text+0x8b04ca): undefined reference to `ir_keydown'
> dib0700_devices.c:(.text+0x8b2ea8): undefined reference to `ir_keydown'
> dib0700_devices.c:(.text+0x8b2ef0): undefined reference to `ir_keydown'

Those breakages seem to be caused by two bad things at IR_CORE Kconfig:

1) cx23885 is using select for IR_CORE;
2) the dvb-usb and sms dependency for IR_CORE were missing.

While here, allow users to un-select IR.

Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

8 years agoMerge branch 'io_remap_pfn_range' of git://www.jni.nu/cris
Linus Torvalds [Thu, 12 Aug 2010 17:17:19 +0000]
Merge branch 'io_remap_pfn_range' of git://jni.nu/cris

* 'io_remap_pfn_range' of git://www.jni.nu/cris:
  CRIS: Define io_remap_pfn_range as remap_pfn_range

8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
Linus Torvalds [Thu, 12 Aug 2010 17:16:46 +0000]
Merge git://git./linux/kernel/git/agk/linux-2.6-dm

* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (33 commits)
  dm mpath: support discard
  dm stripe: support discards
  dm: split discard requests on target boundaries
  dm stripe: optimize sector division
  dm stripe: move sector translation to a function
  dm: error return error for discards
  dm delay: support discard
  dm: zero silently drop discards
  dm: use dm_target_offset macro
  dm: factor out max_io_len_target_boundary
  dm: use common __issue_target_request for flush and discard support
  dm: linear support discard
  dm crypt: simplify crypt_ctr
  dm crypt: simplify crypt_config destruction logic
  dm: allow autoloading of dm mod
  dm: rename map_info flush_request to target_request_nr
  dm ioctl: refactor dm_table_complete
  dm snapshot: implement merge
  dm: do not initialise full request queue when bio based
  dm ioctl: make bio or request based device type immutable
  ...

8 years agoMerge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux...
Linus Torvalds [Thu, 12 Aug 2010 17:15:10 +0000]
Merge branch 'hwpoison' of git://git./linux/kernel/git/ak/linux-mce-2.6

* 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6:
  hugetlb: add missing unlock in avoidcopy path in hugetlb_cow()
  hwpoison: rename CONFIG
  HWPOISON, hugetlb: support hwpoison injection for hugepage
  HWPOISON, hugetlb: detect hwpoison in hugetlb code
  HWPOISON, hugetlb: isolate corrupted hugepage
  HWPOISON, hugetlb: maintain mce_bad_pages in handling hugepage error
  HWPOISON, hugetlb: set/clear PG_hwpoison bits on hugepage
  HWPOISON, hugetlb: enable error handling path for hugepage
  hugetlb, rmap: add reverse mapping for hugepage
  hugetlb: move definition of is_vm_hugetlb_page() to hugepage_inline.h

Fix up trivial conflicts in mm/memory-failure.c

8 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Thu, 12 Aug 2010 17:08:10 +0000]
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  Further tidyup of raid6 naming in lib/raid6
  Make lib/raid6/test build correctly.
  Rename raid6 files now they're in a 'raid6' directory.

8 years agoMerge branch 'msm-core' of git://codeaurora.org/quic/kernel/dwalker/linux-msm
Linus Torvalds [Thu, 12 Aug 2010 17:07:32 +0000]
Merge branch 'msm-core' of git://codeaurora.org/quic/kernel/dwalker/linux-msm

* 'msm-core' of git://codeaurora.org/quic/kernel/dwalker/linux-msm:
  msm: mmc: Add msm prefix to platform data structure
  msm: trout: Remove extern declaration from source file
  arm: msm: Fix section mismatch in smd.c.
  arm: msm: trout add mmc support
  arm: msm: trout: add trout specific gpio interrupts
  arm: msm: remove unused #include <linux/version.h>

8 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Thu, 12 Aug 2010 17:07:11 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] add missing __percpu markup in pcc-cpufreq.c

8 years agoMerge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvar...
Linus Torvalds [Thu, 12 Aug 2010 17:06:29 +0000]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c: I2C bus multiplexer driver pca954x
  i2c: Multiplexed I2C bus core support
  i2c: Use a separate mutex for userspace client lists
  i2c: Make i2c_default_probe self-sufficient
  i2c: Drop dummy variable
  i2c: Move adapter locking helpers to i2c-core
  V4L/DVB: Use custom I2C probing function mechanism
  i2c: Add support for custom probe function
  i2c-dev: Use memdup_user
  i2c-dev: Remove unnecessary kmalloc casts

8 years agoMerge branch 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux...
Linus Torvalds [Thu, 12 Aug 2010 17:01:59 +0000]
Merge branch 'params' of git://git./linux/kernel/git/rusty/linux-2.6-for-linus

* 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (22 commits)
  param: don't deref arg in __same_type() checks
  param: update drivers/acpi/debug.c to new scheme
  param: use module_param in drivers/message/fusion/mptbase.c
  ide: use module_param_named rather than module_param_call
  param: update drivers/char/ipmi/ipmi_watchdog.c to new scheme
  param: lock if_sdio's lbs_helper_name and lbs_fw_name against sysfs changes.
  param: lock myri10ge_fw_name against sysfs changes.
  param: simple locking for sysfs-writable charp parameters
  param: remove unnecessary writable charp
  param: add kerneldoc to moduleparam.h
  param: locking for kernel parameters
  param: make param sections const.
  param: use free hook for charp (fix leak of charp parameters)
  param: add a free hook to kernel_param_ops.
  param: silence .init.text references from param ops
  Add param ops struct for hvc_iucv driver.
  nfs: update for module_param_named API change
  AppArmor: update for module_param_named API change
  param: use ops in struct kernel_param, rather than get and set fns directly
  param: move the EXPORT_SYMBOL to after the definitions.
  ...

8 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
Linus Torvalds [Thu, 12 Aug 2010 17:01:30 +0000]
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: (22 commits)
  regulator: Remove default DEBUG define from TPS6586x
  regulator: tps6507x - add missing platform_set_drvdata in tps6507x_pmic_probe
  regulator: tps6586x - add regulator_unregister() in tps6586x_regulator_remove()
  mfd: max8998 - fix incorrect kfree(i2c) in i2c_driver probe callback handler
  regulator: lp3971 - remove unnecessary ret value checking in lp3971_i2c_write()
  regulator: max8660 - fix a memory leak in max8660_remove()
  regulator: max1586 - fix a memory leak in max1586_pmic_remove()
  regulator: Default GPIO controlled WM8994 regulators to disabled
  regulator: lp3971 - remove unnecessary ret value checking in lp3971_i2c_write()
  max8998: fix off-by-one value range checking
  regulator: tps6586x: fix millivolt return values and SM2 table
  regulator: tps6586x: add dependancy on MFD_TPS6585x
  regulator: add TPS6586X regulator driver
  regulator: MAX8998: set_voltage bugfix. ramp_up delay and min/max voltage
  regulator: add support for regulators on the ab8500 MFD
  ab8500-mfd: add regulator support to ab8500 mfd device
  tps65023: Allow registering similar TPS65021
  drivers: regulators: depend on MFD_MAX8998
  drivers: regulator: add Maxim 8998 driver
  ISL6271A voltage regulator support.
  ...

8 years agoMerge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Linus Torvalds [Thu, 12 Aug 2010 17:01:06 +0000]
Merge branch 'for-next' of git://git./linux/kernel/git/sameo/mfd-2.6

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (40 commits)
  mfd: Fix incorrect kfree(i2c) in wm8994-core i2c_driver probe
  mfd: Fix incorrect kfree(i2c) in wm831x-core i2c_driver probe
  mfd: Fix incorrect kfree(i2c) in tps6507x i2c_driver probe
  mfd: Add TPS6586x driver
  mfd: Use macros instead of some constant magic numbers for menelaus
  mfd: Fix menelaus mmc slot 2 misconfiguration
  mfd: Missing slab.h includes
  mfd: Fix wrong wm8350-core kfree in error path
  mfd: Fix wm8994_device_init() return value
  mfd: Avoid calling platform_device_put() twice in ucb1400 probe error path
  mfd: Annotate tc6387xb probe/remove routines with __devinit/__devexit
  mfd: Fix tc6387xb resource reclaim
  mfd: Fix wrong goto labels for tc6393xb error handling
  mfd: Get rid of now unused mc13783 private header
  hwmon: Don't access struct mc13783 directly from mc13783-adc
  mfd: New mc13783 function exposing flags
  mfd: Check jz4740-adc kmalloc() result
  mfd: Fix jz4740-adc resource reclaim in probe error path
  mfd: Add WM8321 support
  mfd: Add stmpe auto sleep feature
  ...

8 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Thu, 12 Aug 2010 17:00:06 +0000]
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: add AD1980 obsolete information
  ASoC: register cache should be 1 byte aligned for 1 byte long register
  ALSA: hda - Adding support for new IDT 92HD87XX codecs
  ASoC: Fix inverted mute controls for WM8580
  ALSA: HDA: Use model=auto for LG R510
  ALSA: hda - Update model entries in HD-Audio-Models.txt
  ALSA: hda: document VIA models
  ALSA: hda - patch_nvhdmi.c: Add missing codec IDs, unify names
  ALSA: hda - add support for Conexant CX20584
  ALSA: hda - New snd-hda-intel model/pin config for hp dv7-4000
  ALSA: hda - Fix missing stream for second ADC on Realtek ALC260 HDA codec
  ALSA: hda - Make converter setups sticky
  ALSA: hda - Add support for Acer ZGA ALC271 (1025:047c)
  sound/oss: Adjust confusing if indentation
  sound: oss: au1550_ac97.c removed duplicated #include
  ASoC: Fix for changed Eureka Kconfig symbol names

8 years agoMerge git://git.infradead.org/battery-2.6
Linus Torvalds [Thu, 12 Aug 2010 16:58:33 +0000]
Merge git://git.infradead.org/battery-2.6

* git://git.infradead.org/battery-2.6:
  intel_mid_battery: Fix battery scaling
  intel_mid_battery: Fix the argument order to intel_scu_ipc_command
  olpc_battery: Fix build failure caused by sysfs changes
  Add s3c-adc-battery driver
  Intel MID platform battery driver

Fix up trivial conflicts (battery drivers added from different branches)
in drivers/power/{Kconfig,Makefile}

8 years agox86/hpet: Use the FSEC_PER_SEC constant for femto-second periods
Chris Wilson [Mon, 9 Aug 2010 21:20:10 +0000]
x86/hpet: Use the FSEC_PER_SEC constant for femto-second periods

The current computation, introduced with f12a15be63, of FSEC_PER_SEC using
the multiplication of (FSEC_PER_NSEC * NSEC_PER_SEC) is performed only
with 32bit integers on small machines, resulting in an overflow and a
*very* short intervals being programmed.  An interrupt storm follows.

Note that we also have to specify FSEC_PER_SEC as being long long to
overcome the same limitations.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agotimekeeping: Fix overflow in rawtime tv_nsec on 32 bit archs
Jason Wessel [Mon, 9 Aug 2010 21:20:09 +0000]
timekeeping: Fix overflow in rawtime tv_nsec on 32 bit archs

The tv_nsec is a long and when added to the shifted interval it can wrap
and become negative which later causes looping problems in the
getrawmonotonic().  The edge case occurs when the system has slept for
a short period of time of ~2 seconds.

A trace printk of the values in this patch illustrate the problem:

ftrace time stamp: log
43.716079: logarithmic_accumulation: raw: 3d0913 tv_nsec d687faa
43.718513: logarithmic_accumulation: raw: 3d0913 tv_nsec da588bd
43.722161: logarithmic_accumulation: raw: 3d0913 tv_nsec de291d0
46.349925: logarithmic_accumulation: raw: 7a122600 tv_nsec e1f9ae3
46.349930: logarithmic_accumulation: raw: 1e848980 tv_nsec 8831c0e3

The kernel starts looping at 46.349925 in the getrawmonotonic() due to
the negative value from adding the raw value to tv_nsec.

A simple solution is to accumulate into a u64, and then normalize it
to a timespec_t.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
 [ Reworked variable names and simplified some of the code. - John ]
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoMN10300: Use no_printk() for disabled gdbstub debugging functions
David Howells [Thu, 12 Aug 2010 15:55:02 +0000]
MN10300: Use no_printk() for disabled gdbstub debugging functions

Use no_printk() for disabled gdbstub debugging functions to maintain side
effect checking.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoAdd a dummy printk function for the maintenance of unused printks
David Howells [Thu, 12 Aug 2010 15:54:57 +0000]
Add a dummy printk function for the maintenance of unused printks

Add a dummy printk function for the maintenance of unused printks through gcc
format checking, and also so that side-effect checking is maintained too.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoMN10300: Don't try and #include <linux/slab.h> in lib/inflate.c from bootloader
David Howells [Thu, 12 Aug 2010 15:54:52 +0000]
MN10300: Don't try and #include <linux/slab.h> in lib/inflate.c from bootloader

Don't try and #include <linux/slab.h> in lib/inflate.c from the bootloader code
as linux/slab.h hauls in function defs that aren't available in the bootloader
code and may also haul in conflicting functions.

To fix this, make the inclusion of linux/slab.h contingent on NO_INFLATE_MALLOC
as are the usages of kmalloc() and kfree().

In MN10300, this causes the following errors:

In file included from include/linux/string.h:21,
                 from include/linux/bitmap.h:8,
                 from include/linux/nodemask.h:93,
                 from include/linux/mmzone.h:16,
                 from include/linux/gfp.h:4,
                 from include/linux/slab.h:12,
                 from arch/mn10300/boot/compressed/../../../../lib/inflate.c:106,
                 from arch/mn10300/boot/compressed/misc.c:170:
/warthog/am33/linux-2.6-mn10300/arch/mn10300/include/asm/string.h:19: error: conflicting types for 'memset'
arch/mn10300/boot/compressed/misc.c:59: error: previous definition of 'memset' was here

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoMN10300: Permit .GCC-command-line sections
David Howells [Thu, 12 Aug 2010 15:54:47 +0000]
MN10300: Permit .GCC-command-line sections

Permit .GCC-command-line sections in modules.  Otherwise modpost says things
like:

WARNING: drivers/mtd/chips/map_ram.o (.GCC-command-line): unexpected non-allocatable section.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoMN10300: Fix size_t and ssize_t
David Howells [Thu, 12 Aug 2010 15:54:41 +0000]
MN10300: Fix size_t and ssize_t

With the newer compilers, size_t and ssize_t are expected to be (un)signed int
rather than (un)signed long.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoMN10300: Fix RTC routines
David Howells [Thu, 12 Aug 2010 15:54:36 +0000]
MN10300: Fix RTC routines

A change to the RTC routines in the MN10300 arch used set_rtc_mms() when it
meant set_rtc_mmss().  This results in an error due to a reference of an
undefined symbol.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years ago[CPUFREQ] add missing __percpu markup in pcc-cpufreq.c
Namhyung Kim [Sat, 7 Aug 2010 17:37:23 +0000]
[CPUFREQ] add missing __percpu markup in pcc-cpufreq.c

pcc_cpu_info is a percpu pointer but was missing __percpu markup.
Add it.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Dave Jones <davej@redhat.com>

8 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
Linus Torvalds [Thu, 12 Aug 2010 16:29:06 +0000]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Fix rwsem: RWSEM_WAITING_BIAS must not be unsigned.

8 years agoMerge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Thu, 12 Aug 2010 16:21:39 +0000]
Merge branch 'drm-core-next' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (55 commits)
  io-mapping: move asm include inside the config option
  vgaarb: drop vga.h include
  drm/radeon: Add probing of clocks from device-tree
  drm/radeon: drop old and broken mesa warning
  drm/radeon: Fix pci_map_page() error checking
  drm: Remove count_lock for calling lastclose() after 58474713 (v2)
  drm/radeon/kms: allow FG_ALPHA_VALUE on r5xx
  drm/radeon/kms: another r6xx/r7xx CS checker fix
  DRM: Replace kmalloc/memset combos with kzalloc
  drm: expand gamma_set
  drm/edid: Split mode lists out to their own header for readability
  drm/edid: Rewrite mode parse to use the generic detailed block walk
  drm/edid: Add detailed block walk for VTB extensions
  drm/edid: Add detailed block walk for CEA extensions
  drm: Remove unused fields from drm_display_info
  drm: Use ENOENT consistently for the error return for an unmatched handle.
  drm/radeon/kms: mark 3D power states as performance
  drm: Only set DPMS once on the CRTC not after every encoder.
  drm/radeon/kms: add additional quirk for Acer rv620 laptop
  drm: Propagate error code from fb_create()
  ...

Fix up trivial conflicts in drivers/gpu/drm/drm_edid.c

8 years ago[IA64] Fix rwsem: RWSEM_WAITING_BIAS must not be unsigned.
Tony Luck [Thu, 12 Aug 2010 16:14:56 +0000]
[IA64] Fix rwsem: RWSEM_WAITING_BIAS must not be unsigned.

Some nice improvements were made to rwsem in commit:

 424acaaeb3a3932d64a9b4bd59df6cf72c22d8f3
 rwsem: wake queued readers when writer blocks on active read lock

but this change overlooked that ia64 had defined RWSEM_WAITING_BIAS
as an unsigned value, while the new code required a signed value (as
it is in every other architecture).

This fix suggested by the original patch author: Michel Lespinasse.

Signed-off-by: Tony Luck <tony.luck@intel.com>

8 years agoMerge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Thu, 12 Aug 2010 16:11:31 +0000]
Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6

* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  mmc_spi: Fix unterminated of_match_table
  of/sparc: fix build regression from of_device changes
  of/device: Replace struct of_device with struct platform_device

8 years agoMerge branch 'stable/xen-swiotlb-0.8.6' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 12 Aug 2010 16:09:41 +0000]
Merge branch 'stable/xen-swiotlb-0.8.6' of git://git./linux/kernel/git/konrad/xen

* 'stable/xen-swiotlb-0.8.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  x86: Detect whether we should use Xen SWIOTLB.
  pci-swiotlb-xen: Add glue code to setup dma_ops utilizing xen_swiotlb_* functions.
  swiotlb-xen: SWIOTLB library for Xen PV guest with PCI passthrough.
  xen/mmu: inhibit vmap aliases rather than trying to clear them out
  vmap: add flag to allow lazy unmap to be disabled at runtime
  xen: Add xen_create_contiguous_region
  xen: Rename the balloon lock
  xen: Allow unprivileged Xen domains to create iomap pages
  xen: use _PAGE_IOMAP in ioremap to do machine mappings

Fix up trivial conflicts (adding both xen swiotlb and xen pci platform
driver setup close to each other) in drivers/xen/{Kconfig,Makefile} and
include/xen/xen-ops.h

8 years agomemstick: fix hangs on unexpected device removal in mspro_blk
Maxim Levitsky [Wed, 11 Aug 2010 21:17:52 +0000]
memstick: fix hangs on unexpected device removal in mspro_blk

mspro_block_remove() is called from detect thread that first calls the
mspro_block_stop(), which stops the request queue.  If we call
del_gendisk() with the queue stopped we get a deadlock.

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Alex Dubov <oakad@yahoo.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agomemstick: init sysfs attributes
Maxim Levitsky [Wed, 11 Aug 2010 21:17:52 +0000]
memstick: init sysfs attributes

Otherwise lockdep complains.

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Alex Dubov <oakad@yahoo.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agommc_test: fix large memory allocation
Adrian Hunter [Wed, 11 Aug 2010 21:17:51 +0000]
mmc_test: fix large memory allocation

- Fix mmc_test_alloc_mem.

- Use nr_free_buffer_pages() instead of sysinfo.totalram to determine
  total lowmem pages.

- Change variables containing memory sizes to unsigned long.

- Limit maximum test area size to 128MiB because that is the maximum MMC
  high capacity erase size (the maxmium SD allocation unit size is just
  4MiB)

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agommc_test: add performance tests
Adrian Hunter [Wed, 11 Aug 2010 21:17:51 +0000]
mmc_test: add performance tests

mmc_test provides tests aimed at testing SD/MMC hosts.  This patch adds
performance tests.

It is advantageous to have performance tests in a kernel
module like mmc_test for the following reasons:
- transfer times can be measured very accurately
- arbitrarily large transfers are possible
- the effect of contiguous vs scattered pages
can be determined

The new tests are:

23. Best-case read performance
24. Best-case write performance
25. Best-case read performance into scattered pages
26. Best-case write performance from scattered pages
27. Single read performance by transfer size
28. Single write performance by transfer size
29. Single trim performance by transfer size
30. Consecutive read performance by transfer size
31. Consecutive write performance by transfer size
32. Consecutive trim performance by transfer size

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agommc_block: add support for secure discard
Adrian Hunter [Wed, 11 Aug 2010 21:17:50 +0000]
mmc_block: add support for secure discard

Secure discard is implemented by Secure Trim if the discard is unaligned
or Secure Erase otherwise.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Cc: Kyungmin Park <kmpark@infradead.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ben Gardiner <bengardiner@nanometrics.ca>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoblock: add secure discard
Adrian Hunter [Wed, 11 Aug 2010 21:17:49 +0000]
block: add secure discard

Secure discard is the same as discard except that all copies of the
discarded sectors (perhaps created by garbage collection) must also be
erased.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Cc: Kyungmin Park <kmpark@infradead.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ben Gardiner <bengardiner@nanometrics.ca>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agoomap_hsmmc: add erase capability
Adrian Hunter [Wed, 11 Aug 2010 21:17:48 +0000]
omap_hsmmc: add erase capability

Disable the data (busy) timeout for erases and set the MMC_CAP_ERASE
capability.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Cc: Kyungmin Park <kmpark@infradead.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ben Gardiner <bengardiner@nanometrics.ca>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agommc_block: add discard support
Adrian Hunter [Wed, 11 Aug 2010 21:17:47 +0000]
mmc_block: add discard support

Enable MMC to service discard requests.  In the case of SD and MMC cards
that do not support trim, discards become erases.  In the case of cards
(MMC) that only allow erases in multiples of erase group size, round to
the nearest completely discarded erase group.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Cc: Kyungmin Park <kmpark@infradead.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ben Gardiner <bengardiner@nanometrics.ca>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agommc: add erase, secure erase, trim and secure trim operations
Adrian Hunter [Wed, 11 Aug 2010 21:17:46 +0000]
mmc: add erase, secure erase, trim and secure trim operations

SD/MMC cards tend to support an erase operation.  In addition, eMMC v4.4
cards can support secure erase, trim and secure trim operations that are
all variants of the basic erase command.

SD/MMC device attributes "erase_size" and "preferred_erase_size" have been
added.

"erase_size" is the minimum size, in bytes, of an erase operation.  For
MMC, "erase_size" is the erase group size reported by the card.  Note that
"erase_size" does not apply to trim or secure trim operations where the
minimum size is always one 512 byte sector.  For SD, "erase_size" is 512
if the card is block-addressed, 0 otherwise.

SD/MMC cards can erase an arbitrarily large area up to and
including the whole card.  When erasing a large area it may
be desirable to do it in smaller chunks for three reasons:

    1. A single erase command will make all other I/O on the card
       wait.  This is not a problem if the whole card is being erased, but
       erasing one partition will make I/O for another partition on the
       same card wait for the duration of the erase - which could be a
       several minutes.

    2. To be able to inform the user of erase progress.

    3. The erase timeout becomes too large to be very useful.
       Because the erase timeout contains a margin which is multiplied by
       the size of the erase area, the value can end up being several
       minutes for large areas.

"erase_size" is not the most efficient unit to erase (especially for SD
where it is just one sector), hence "preferred_erase_size" provides a good
chunk size for erasing large areas.

For MMC, "preferred_erase_size" is the high-capacity erase size if a card
specifies one, otherwise it is based on the capacity of the card.

For SD, "preferred_erase_size" is the allocation unit size specified by
the card.

"preferred_erase_size" is in bytes.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Cc: Kyungmin Park <kmpark@infradead.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ben Gardiner <bengardiner@nanometrics.ca>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agomm: fix writeback_in_progress()
Jan Kara [Wed, 11 Aug 2010 21:17:44 +0000]
mm: fix writeback_in_progress()

Commit 83ba7b071f3 ("writeback: simplify the write back thread queue")
broke writeback_in_progress() as in that commit we started to remove work
items from the list at the moment we start working on them and not at the
moment they are finished.  Thus if the flusher thread was doing some work
but there was no other work queued, writeback_in_progress() returned
false.  This could in particular cause unnecessary queueing of background
writeback from balance_dirty_pages() or writeout work from
writeback_sb_if_idle().

This patch fixes the problem by introducing a bit in the bdi state which
indicates that the flusher thread is processing some work and uses this
bit for writeback_in_progress() test.

NOTE: Both callsites of writeback_in_progress() (namely,
writeback_inodes_sb_if_idle() and balance_dirty_pages()) would actually
need a different information than what writeback_in_progress() provides.
They would need to know whether *the kind of writeback they are going to
submit* is already queued.  But this information isn't that simple to
provide so let's fix writeback_in_progress() for the time being.

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Acked-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 years agowriteback: merge for_kupdate and !for_kupdate cases
Wu Fengguang [Wed, 11 Aug 2010 21:17:43 +0000]
writeback: merge for_kupdate and !for_kupdate cases

Unify the logic for kupdate and non-kupdate cases.  There won't be
starvation because the inodes requeued into b_more_io will later be
spliced _after_ the remaining inodes in b_io, hence won't stand in the way
of other inodes in the next run.

It avoids unnecessary redirty_tail() calls, hence the update of
i_dirtied_when.  The timestamp update is undesirable because it could
later delay the inode's periodic writeback, or may exclude the inode from
the data integrity sync operation (which checks timestamp to avoid extra
work and livelock).

===
How the redirty_tail() comes about:

It was a long story..  This redirty_tail() was introduced with
wbc.more_io.  The initial patch for more_io actually does not have the
redirty_tail(), and when it's merged, several 100% iowait bug reports
arised:

reiserfs:
        http://lkml.org/lkml/2007/10/23/93

jfs:
        commit 29a424f28390752a4ca2349633aaacc6be494db5
        JFS: clear PAGECACHE_TAG_DIRTY for no-write pages

ext2:
        http://www.spinics.net/linux/lists/linux-ext4/msg04762.html

They are all old bugs hidden in various filesystems that become "visible"
with the more_io patch.  At the time, the ext2 bug is thought to be
"trivial", so not fixed.  Instead the following updated more_io patch with
redirty_tail() is merged:

http://www.spinics.net/linux/lists/linux-ext4/msg04507.html

This will in general prevent 100% on ext2 and possibly other unknown FS bugs.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Martin Bligh <mbligh@google.com>
Cc: Michael Rubin <mrubin@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>