sfrench/cifs-2.6.git
10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6
Linus Torvalds [Sat, 20 Jun 2009 00:42:01 +0000 (17:42 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6:
  sparc64: Fix UP bootup regression.

10 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Sat, 20 Jun 2009 00:40:40 +0000 (17:40 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (35 commits)
  powerpc/5121: make clock debug output more readable
  powerpc/5xxx: Add common mpc5xxx_get_bus_frequency() function
  powerpc/5200: Update pcm030.dts to add i2c eeprom and delete cruft
  powerpc/5200: convert mpc52xx_psc_spi to use cs_control callback
  fbdev/xilinxfb: Fix improper casting and tighen up probe path
  usb/ps3: Add missing annotations
  powerpc: Add memory clobber to mtspr()
  powerpc: Fix invalid construct in our CPU selection Kconfig
  ps3rom: Use ps3_system_bus_[gs]et_drvdata() instead of direct access
  powerpc: Add configurable -Werror for arch/powerpc
  of_serial: Add UPF_FIXED_TYPE flag
  drivers/hvc: Add missing __devexit_p()
  net/ps3: gelic - Add missing annotations
  powerpc: Introduce macro spin_event_timeout()
  powerpc/warp: Fix ISA_DMA_THRESHOLD default
  powerpc/bootwrapper: Custom build options for XPedite52xx targets
  powerpc/85xx: Add defconfig for X-ES MPC85xx boards
  powerpc/85xx: Add dts files for X-ES MPC85xx boards
  powerpc/85xx: Add platform support for X-ES MPC85xx boards
  83xx: add support for the kmeter1 board.
  ...

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier...
Linus Torvalds [Sat, 20 Jun 2009 00:34:46 +0000 (17:34 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/vapier/blackfin

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin:
  Blackfin: convert page/tlb to asm-generic
  Blackfin: convert types to asm-generic
  Blackfin: convert irq/process to asm-generic
  Blackfin: convert signal/mmap to asm-generic
  Blackfin: convert locking primitives to asm-generic
  Blackfin: convert termios to asm-generic
  Blackfin: convert simple headers to asm-generic
  Blackfin: convert socket/poll to asm-generic
  Blackfin: convert user/elf to asm-generic
  Blackfin: convert shm/sysv/ipc to asm-generic
  Blackfin: convert asm/ioctls.h to asm-generic/ioctls.h
  Blackfin: only build irqpanic.c when needed
  Blackfin: pull in asm/io.h in ksyms for prototypes
  Blackfin: use common test_bit() rather than __test_bit()

10 years agoMAINTAINERS: kmemtrace pattern update
Joe Perches [Thu, 18 Jun 2009 23:49:25 +0000 (16:49 -0700)]
MAINTAINERS: kmemtrace pattern update

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Zhao Lei <zhaolei@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMAINTAINERS: ieee802154 fix pattern typo
Joe Perches [Thu, 18 Jun 2009 23:49:24 +0000 (16:49 -0700)]
MAINTAINERS: ieee802154 fix pattern typo

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Sergey Lapin <slapin@ossfans.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMAINTAINERS: update wireless.h path
Joe Perches [Thu, 18 Jun 2009 23:49:24 +0000 (16:49 -0700)]
MAINTAINERS: update wireless.h path

Signed-off-by: Joe Perches <joe@perches.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMAINTAINERS: update Ftrace documentation pattern
Joe Perches [Thu, 18 Jun 2009 23:49:23 +0000 (16:49 -0700)]
MAINTAINERS: update Ftrace documentation pattern

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMAINTAINERS: fix Atheros pattern paths
Joe Perches [Thu, 18 Jun 2009 23:49:22 +0000 (16:49 -0700)]
MAINTAINERS: fix Atheros pattern paths

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Bob Copeland <me@bobcopeland.com>
Cc: "Luis R . Rodriguez" <lrodriguez@atheros.com>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agofbdev: do not allow VESA modes without compiled-in drivers
Krzysztof Helt [Thu, 18 Jun 2009 23:49:21 +0000 (16:49 -0700)]
fbdev: do not allow VESA modes without compiled-in drivers

Do not accept VESA modes by the "vga=" kernel parameter if there is no
frame buffer driver compiled-in to handle it.

Also, there is a comment added to the Kconfig description after Werner
Lemberg's suggestion

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13249

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Reported-by: Werner Lemberg <wl@gnu.org>
Cc: Michal Januszewski <spock@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMAINTAINERS: pair names/addresses in EDAC-I82975X
Joe Perches [Thu, 18 Jun 2009 23:49:19 +0000 (16:49 -0700)]
MAINTAINERS: pair names/addresses in EDAC-I82975X

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Ranganathan Desikan <rdesikan@jetzbroadband.com>
Cc: "Arvind R." <arvind@acarlab.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodma-mapping: mark dma_sync_single and dma_sync_sg as deprecated
FUJITA Tomonori [Thu, 18 Jun 2009 23:49:19 +0000 (16:49 -0700)]
dma-mapping: mark dma_sync_single and dma_sync_sg as deprecated

dma_sync_single() and dma_sync_sg() have been described as "Backwards
compat, remove in 2.7.x" for a long time (since 2.6.5).

This marks dma_sync_single() and dma_sync_sg() as deprecated so the users
get notified before removing them.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodma-mapping: mark DMA_nBITS_MASK as deprecated
Jiri Slaby [Thu, 18 Jun 2009 23:49:18 +0000 (16:49 -0700)]
dma-mapping: mark DMA_nBITS_MASK as deprecated

Mark them deprecated so that out-of-tree developers get notified about
this before their modules break when these macros are removed.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Yang Hongyang <yanghy@cn.fujitsu.com>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoconvert some DMA_nnBIT_MASK() callers
Andrew Morton [Thu, 18 Jun 2009 23:49:17 +0000 (16:49 -0700)]
convert some DMA_nnBIT_MASK() callers

We're about to make DMA_nnBIT_MASK() emit `deprecated' warnings.  Convert the
remaining stragglers which are visible to the x86_64 build.

Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Eric Moore <Eric.Moore@lsil.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Yi Zou <yi.zou@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agochar: moxa, prevent opening unavailable ports
Dirk Eibach [Thu, 18 Jun 2009 23:49:15 +0000 (16:49 -0700)]
char: moxa, prevent opening unavailable ports

In moxa.c there are 32 minor numbers reserved for each device.  The number
of ports actually available per device is stored in
moxa_board_conf->numPorts.  This number is not considered in moxa_open().
Opening a port that is not available results in a kernel oops.  This patch
adds a test to moxa_open() that prevents opening unavailable ports.

[akpm@linux-foundation.org: avoid multiple returns]
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
10 years agoistallion: add missing __devexit marking
Mike Frysinger [Thu, 18 Jun 2009 23:49:14 +0000 (16:49 -0700)]
istallion: add missing __devexit marking

The remove member of the pci_driver stli_pcidriver uses __devexit_p(), so
the remove function itself should be marked with __devexit.  Even more so
considering the probe function is marked with __devinit.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodtlk: off by one in {read,write}_tts()
Roel Kluin [Thu, 18 Jun 2009 23:49:13 +0000 (16:49 -0700)]
dtlk: off by one in {read,write}_tts()

With a postfix increment retries is incremented beyond DTLK_MAX_RETRIES so
the error message is not displayed correctly.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: James R. Van Zandt <jrv@vanzandt.mv.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoptrace: wait_task_zombie: do not account traced sub-threads
Oleg Nesterov [Thu, 18 Jun 2009 23:49:11 +0000 (16:49 -0700)]
ptrace: wait_task_zombie: do not account traced sub-threads

The bug is ancient.

If we trace the sub-thread of our natural child and this sub-thread exits,
we update parent->signal->cxxx fields.  But we should not do this until
the whole thread-group exits, otherwise we account this thread (and all
other live threads) twice.

Add the task_detached() check.  No need to check thread_group_empty(),
wait_consider_task()->delay_group_leader() already did this.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Vitaly Mayatskikh <vmayatsk@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agortc: make rtc_update_irq callable with irqs enabled
Atsushi Nemoto [Thu, 18 Jun 2009 23:49:09 +0000 (16:49 -0700)]
rtc: make rtc_update_irq callable with irqs enabled

The rtc_update_irq() might be called with irqs enabled, if a interrupt
handler was registered without IRQF_DISABLED.  Use
spin_lock_irqsave/spin_unlock_irqrestore instead of spin_lock/spin_unlock.

Also update kerneldoc and drivers which do extra work to follow the
current interface spec, as suggestted by David Brownell.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: 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>
10 years agospi_mpc8xxx: s/83xx/8xxx/g
Anton Vorontsov [Thu, 18 Jun 2009 23:49:08 +0000 (16:49 -0700)]
spi_mpc8xxx: s/83xx/8xxx/g

Since we renamed the file, we might want to rename the file internals too.

Though we don't bother with changing platform driver name and platform
module alias.  The stuff is legacy and hopefully we'll remove it soon.

Suggested-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agospi_mpc83xx: rename spi_83xx.c to spi_8xxx.c
Anton Vorontsov [Thu, 18 Jun 2009 23:49:08 +0000 (16:49 -0700)]
spi_mpc83xx: rename spi_83xx.c to spi_8xxx.c

The driver handles MPC83xx, MPC85xx and MPC86xx SPI controllers, so rename
the file for clarity.

Suggested-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agospi_mpc83xx: remove dead code
Anton Vorontsov [Thu, 18 Jun 2009 23:49:07 +0000 (16:49 -0700)]
spi_mpc83xx: remove dead code

This patch removes #if 0'ed code, and spi_mpc83xx->busy variable that is
used by that dead snippet only.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agospi_mpc83xx: split mpc83xx_spi_work() into two routines
Anton Vorontsov [Thu, 18 Jun 2009 23:49:06 +0000 (16:49 -0700)]
spi_mpc83xx: split mpc83xx_spi_work() into two routines

mpc83xx_spi_work() is quite large, with up to five indentation levels and
is quite difficult to read.

So, split the function in two parts:
1. mpc83xx_spi_work() now only traverse queued spi messages;
2. mpc83xx_spi_do_one_msg() only manages single messages.

There should be no functional changes.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agospi_mpc83xx: fix checkpatch issues
Anton Vorontsov [Thu, 18 Jun 2009 23:49:05 +0000 (16:49 -0700)]
spi_mpc83xx: fix checkpatch issues

Checkpatch is spitting errors when seeing the rename patch, so fix the
errors prior to moving.

Following errors and warnings were fixed:

   WARNING: Use #include <linux/io.h> instead of <asm/io.h>
   #1027: FILE: drivers/spi/spi_mpc8xxx.c:37:
   +#include <asm/io.h>

   ERROR: "foo * bar" should be "foo *bar"
   #1111: FILE: drivers/spi/spi_mpc8xxx.c:121:
   +static inline void mpc83xx_spi_write_reg(__be32 __iomem * reg, u32 val)

   ERROR: "foo * bar" should be "foo *bar"
   #1116: FILE: drivers/spi/spi_mpc8xxx.c:126:
   +static inline u32 mpc83xx_spi_read_reg(__be32 __iomem * reg)

   ERROR: "foo * bar" should be "foo *bar"
   #1125: FILE: drivers/spi/spi_mpc8xxx.c:135:
   +       type * rx = mpc83xx_spi->rx;                                      \

   ERROR: "foo * bar" should be "foo *bar"
   #1135: FILE: drivers/spi/spi_mpc8xxx.c:145:
   +       const type * tx = mpc83xx_spi->tx;                      \

   WARNING: suspect code indent for conditional statements (16, 25)
   #1504: FILE: drivers/spi/spi_mpc8xxx.c:514:
   +               while (((event =
   [...]
   +                        cpu_relax();

Following warnings were left over, since fixing them will hurt the
readability.  We'd better fix them by lowering the indentation level by
splitting mpc83xx_spi_work function into two parts.

   WARNING: line over 80 characters
   #1371: FILE: drivers/spi/spi_mpc8xxx.c:381:
   +                                       status = mpc83xx_spi_setup_transfer(spi, t);

   WARNING: line over 80 characters
   #1392: FILE: drivers/spi/spi_mpc8xxx.c:402:
   +                               mpc83xx_spi_chipselect(spi, BITBANG_CS_INACTIVE);

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agopowerpc/86xx: add MMC SPI support for MPC8610HPCD boards
Anton Vorontsov [Thu, 18 Jun 2009 23:49:02 +0000 (16:49 -0700)]
powerpc/86xx: add MMC SPI support for MPC8610HPCD boards

This patch adds spi and mmc-spi-slot nodes, plus a gpio-controller for
PIXIS' sdcsr bank that is used for managing SPI chip-select and for
reading card's states.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agospi_mpc83xx: add small delay after asserting chip-select line
Anton Vorontsov [Thu, 18 Jun 2009 23:49:01 +0000 (16:49 -0700)]
spi_mpc83xx: add small delay after asserting chip-select line

This is needed for some underlaying GPIO controllers that may be a bit
slow, or if chip-select signal need some time to stabilize.

For what it's worth, we already have the similar delay for chip-select
de-assertion case.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agospi_mpc83xx: quieten down the "Requested speed is too low" message
Anton Vorontsov [Thu, 18 Jun 2009 23:49:01 +0000 (16:49 -0700)]
spi_mpc83xx: quieten down the "Requested speed is too low" message

When a platform is running at high frequencies it's not always possible to
scale-down a frequency to a requested value, and using mmc_spi driver this
leads to the following printk flood during card polling:

  ...
  mmc_spi spi32766.0: Requested speed is too low: 400000 Hz. Will use
  520828 Hz instead.
  mmc_spi spi32766.0: Requested speed is too low: 400000 Hz. Will use
  520828 Hz instead.
  ...

Fix this by using WARN_ONCE(), it's better than the flood, and also better
than turning dev_err() into dev_dbg(), since we actually want to warn that
some things may not work correctly.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agospi_mpc83xx: handle other Freescale processors
Anton Vorontsov [Thu, 18 Jun 2009 23:48:59 +0000 (16:48 -0700)]
spi_mpc83xx: handle other Freescale processors

With this patch we'll able to select spi_mpc83xx driver on the MPC86xx
platforms.  Let the driver depend on FSL_SOC, so we don't have to worry
about Kconfig anymore.

Also remove the "experimental" dependency, the driver has been tested to
work on a various hardware, and surely not experimental anymore.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agobootmem.c: avoid c90 declaration warning
Joe Perches [Thu, 18 Jun 2009 23:48:58 +0000 (16:48 -0700)]
bootmem.c: avoid c90 declaration warning

[akpm@linux-foundation.org: cleanup]
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogpio: driver for PrimeCell PL061 GPIO controller
Baruch Siach [Thu, 18 Jun 2009 23:48:58 +0000 (16:48 -0700)]
gpio: driver for PrimeCell PL061 GPIO controller

This is a driver for the ARM PrimeCell PL061 GPIO AMBA peripheral.  The
driver is implemented using the gpiolib framework.

This driver also includes support for the use of the PL061 as an interrupt
controller (secondary).

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agosparc64: Fix UP bootup regression.
David S. Miller [Thu, 18 Jun 2009 08:44:19 +0000 (01:44 -0700)]
sparc64: Fix UP bootup regression.

Commit b696fdc259f0d94348a9327bed352fac44d4883d ("sparc64: Defer
cpu_data() setup until end of per-cpu data initialization.") broke
bootup for UP builds because the cpu_data() initialization only
occurs in setup_per_cpu_areas() which is never compiled in nor
called in UP builds.

Fix this up by calling the setups directly from init_64.c when
non-SMP.

Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Tested-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoBlackfin: convert page/tlb to asm-generic
Mike Frysinger [Sat, 13 Jun 2009 15:39:55 +0000 (11:39 -0400)]
Blackfin: convert page/tlb to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: convert types to asm-generic
Mike Frysinger [Sat, 13 Jun 2009 15:36:23 +0000 (11:36 -0400)]
Blackfin: convert types to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: convert irq/process to asm-generic
Mike Frysinger [Sat, 13 Jun 2009 15:32:34 +0000 (11:32 -0400)]
Blackfin: convert irq/process to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: convert signal/mmap to asm-generic
Mike Frysinger [Sat, 13 Jun 2009 15:26:57 +0000 (11:26 -0400)]
Blackfin: convert signal/mmap to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: convert locking primitives to asm-generic
Mike Frysinger [Sat, 13 Jun 2009 15:21:51 +0000 (11:21 -0400)]
Blackfin: convert locking primitives to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: convert termios to asm-generic
Mike Frysinger [Sat, 13 Jun 2009 15:12:08 +0000 (11:12 -0400)]
Blackfin: convert termios to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: convert simple headers to asm-generic
Mike Frysinger [Sat, 13 Jun 2009 14:54:56 +0000 (10:54 -0400)]
Blackfin: convert simple headers to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: convert socket/poll to asm-generic
Mike Frysinger [Sat, 13 Jun 2009 14:41:25 +0000 (10:41 -0400)]
Blackfin: convert socket/poll to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: convert user/elf to asm-generic
Mike Frysinger [Sat, 13 Jun 2009 14:40:29 +0000 (10:40 -0400)]
Blackfin: convert user/elf to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: convert shm/sysv/ipc to asm-generic
Mike Frysinger [Sat, 13 Jun 2009 14:40:15 +0000 (10:40 -0400)]
Blackfin: convert shm/sysv/ipc to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: convert asm/ioctls.h to asm-generic/ioctls.h
Mike Frysinger [Sat, 13 Jun 2009 11:42:26 +0000 (07:42 -0400)]
Blackfin: convert asm/ioctls.h to asm-generic/ioctls.h

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: only build irqpanic.c when needed
Mike Frysinger [Sat, 13 Jun 2009 14:14:24 +0000 (10:14 -0400)]
Blackfin: only build irqpanic.c when needed

The irq_panic function is only used when CONFIG_DEBUG_ICACHE_CHECK is
enabled, so move the conditional build to the Makefile rather than
wrapping all of the contents of the file.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: pull in asm/io.h in ksyms for prototypes
Mike Frysinger [Sat, 13 Jun 2009 14:35:10 +0000 (10:35 -0400)]
Blackfin: pull in asm/io.h in ksyms for prototypes

Make sure we pull in asm/io.h when exporting symbols for the I/O functions
so we don't end up with a build failure due to missing prototypes.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoBlackfin: use common test_bit() rather than __test_bit()
Mike Frysinger [Sat, 13 Jun 2009 14:32:29 +0000 (10:32 -0400)]
Blackfin: use common test_bit() rather than __test_bit()

Convert to test_bit() as that is what pretty much everyone uses and allows
us to migrate asm/bitops.h to the asm-generic version.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
10 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Thu, 18 Jun 2009 21:07:46 +0000 (14:07 -0700)]
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:
  jbd2: clean up jbd2_journal_try_to_free_buffers()
  ext4: Don't update ctime for non-extent-mapped inodes
  ext4: Fix up whitespace issues in fs/ext4/inode.c
  ext4: Fix 64-bit block type problem on 32-bit platforms
  ext4: teach the inode allocator to use a goal inode number
  ext4: Use a hash of the topdir directory name for the Orlov parent group
  ext4: document the "abort" mount option
  ext4: move the abort flag from s_mount_opts to s_mount_flags
  ext4: update the s_last_mounted field in the superblock
  ext4: change s_mount_opt to be an unsigned int
  ext4: online defrag -- Add EXT4_IOC_MOVE_EXT ioctl
  ext4: avoid unnecessary spinlock in critical POSIX ACL path
  ext3: avoid unnecessary spinlock in critical POSIX ACL path
  ext4: convert instrumentation from markers to tracepoints
  jbd2: convert instrumentation from markers to tracepoints

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
Linus Torvalds [Thu, 18 Jun 2009 21:07:35 +0000 (14:07 -0700)]
Merge git://git./linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (56 commits)
  sh: Fix declaration of __kernel_sigreturn and __kernel_rt_sigreturn
  sh: Enable soc-camera in ap325rxa/migor/se7724 defconfigs.
  sh: remove stray markers.
  sh: defconfig updates.
  sh: pci: Initial PCI-Express support for SH7786 Urquell board.
  sh: Generic HAVE_PERF_COUNTER support.
  SH: convert migor to soc-camera as platform-device
  SH: convert ap325rxa to soc-camera as platform-device
  soc-camera: unify i2c camera device platform data
  sh: add platform data for r8a66597-hcd in setup-sh7723
  sh: add platform data for r8a66597-hcd in setup-sh7366
  sh: x3proto: add platform data for r8a66597-hcd
  sh: highlander: add platform data for r8a66597-hcd
  sh: sh7785lcr: add platform data for r8a66597-hcd
  sh: turn off irqs when disabling CMT/TMU timers
  sh: use kzalloc() for cpg clocks
  sh: unbreak WARN_ON()
  sh: Use generic atomic64_t implementation.
  sh: Revised clock function in highlander
  sh: Update r7780mp defconfig
  ...

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
Linus Torvalds [Thu, 18 Jun 2009 21:07:15 +0000 (14:07 -0700)]
Merge git://git./linux/kernel/git/davem/net-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (55 commits)
  netxen: fix tx ring accounting
  netxen: fix detection of cut-thru firmware mode
  forcedeth: fix dma api mismatches
  atm: sk_wmem_alloc initial value is one
  net: correct off-by-one write allocations reports
  via-velocity : fix no link detection on boot
  Net / e100: Fix suspend of devices that cannot be power managed
  TI DaVinci EMAC : Fix rmmod error
  net: group address list and its count
  ipv4: Fix fib_trie rebalancing, part 2
  pkt_sched: Update drops stats in act_police
  sky2: version 1.23
  sky2: add GRO support
  sky2: skb recycling
  sky2: reduce default transmit ring
  sky2: receive counter update
  sky2: fix shutdown synchronization
  sky2: PCI irq issues
  sky2: more receive shutdown
  sky2: turn off pause during shutdown
  ...

Manually fix trivial conflict in net/core/skbuff.c due to kmemcheck

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Thu, 18 Jun 2009 20:14:10 +0000 (13:14 -0700)]
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: Add NMI sourcing
  [WATCHDOG] iTCO_wdt: Fix ICH7+ reboot issue.
  [WATCHDOG] iTCO_wdt: fix memory corruption when RCBA is disabled by hardware
  [WATCHDOG] Correct WDIOF_MAGICCLOSE flag
  [WATCHDOG] move platform probe and remove function to devinit and devexit
  [WATCHDOG] Some more general cleanup
  [WATCHDOG] iTCO_wdt: Cleanup code

10 years agomm: Extend gfp masking to the page allocator
Benjamin Herrenschmidt [Thu, 18 Jun 2009 03:24:12 +0000 (13:24 +1000)]
mm: Extend gfp masking to the page allocator

The page allocator also needs the masking of gfp flags during boot,
so this moves it out of slab/slub and uses it with the page allocator
as well.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Thu, 18 Jun 2009 20:11:50 +0000 (13:11 -0700)]
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md: (39 commits)
  md/raid5: correctly update sync_completed when we reach max_resync
  md/raid5: add missing call to schedule() after prepare_to_wait()
  md/linear: use call_rcu to free obsolete 'conf' structures.
  md linear: Protecting mddev with rcu locks to avoid races
  md: Move check for bitmap presence to personality code.
  md: remove chunksize rounding from common code.
  md: raid0/linear: ensure device sizes are rounded to chunk size.
  md: move assignment of ->utime so that it never gets skipped.
  md: Push down reconstruction log message to personality code.
  md: merge reconfig and check_reshape methods.
  md: remove unnecessary arguments from ->reconfig method.
  md: raid5: check stripe cache is large enough in start_reshape
  md: raid0: chunk_sectors cleanups.
  md: fix some comments.
  md/raid5: Use is_power_of_2() in raid5_reconfig()/raid6_reconfig().
  md: convert conf->chunk_size and conf->prev_chunk to sectors.
  md: Convert mddev->new_chunk to sectors.
  md: Make mddev->chunk_size sector-based.
  md: raid0 :Enables chunk size other than powers of 2.
  md: prepare for non-power-of-two chunk sizes
  ...

10 years agoMN10300: Add support for new ELF relocs in kernel modules
Mark Salter [Wed, 17 Jun 2009 21:51:11 +0000 (22:51 +0100)]
MN10300: Add support for new ELF relocs in kernel modules

Add support for new relocs which may show up in MN10300 kernel modules due to
linker relaxation.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agolib: add lib/gcd.c
Florian Fainelli [Wed, 17 Jun 2009 23:28:38 +0000 (16:28 -0700)]
lib: add lib/gcd.c

This patch adds lib/gcd.c which contains a greatest common divider
implementation taken from sound/core/pcm_timer.c

Several usages of this new library function will be sent to subsystem
maintainers.

[akpm@linux-foundation.org: use swap() (pointed out by Joe)]
[akpm@linux-foundation.org: just add gcd.o to obj-y, remove Kconfig changes]
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Simon Horman <horms@verge.net.au>
Cc: Julius Volz <juliusv@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoLinuxPPS: core support
Rodolfo Giometti [Wed, 17 Jun 2009 23:28:37 +0000 (16:28 -0700)]
LinuxPPS: core support

This patch adds the kernel side of the PPS support currently named
"LinuxPPS".

PPS means "pulse per second" and a PPS source is just a device which
provides a high precision signal each second so that an application can
use it to adjust system clock time.

Common use is the combination of the NTPD as userland program with a GPS
receiver as PPS source to obtain a wallclock-time with sub-millisecond
synchronisation to UTC.

To obtain this goal the userland programs shoud use the PPS API
specification (RFC 2783 - Pulse-Per-Second API for UNIX-like Operating
Systems, Version 1.0) which in part is implemented by this patch.  It
provides a set of chars devices, one per PPS source, which can be used to
get the time signal.  The RFC's functions can be implemented by accessing
to these char devices.

Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Greg KH <greg@kroah.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: copyright fixes
Jack Steiner [Wed, 17 Jun 2009 23:28:36 +0000 (16:28 -0700)]
gru: copyright fixes

Fix the copyright statements in a couple of GRU files.  No functional
changes are being made.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: remove references to the obsolete global status handle
Jack Steiner [Wed, 17 Jun 2009 23:28:35 +0000 (16:28 -0700)]
gru: remove references to the obsolete global status handle

Delete references to the SGI GRU GSH hardware resources.  These GRU
resources have been deleted from the hardware.  (These resources have
never benn used, anyway).

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: fixes to grudump utility
Jack Steiner [Wed, 17 Jun 2009 23:28:34 +0000 (16:28 -0700)]
gru: fixes to grudump utility

Minor fixes to the SGI GRU grudump facility:
- fix address where user data is written
- add gru number to data passed to user
- indicate if context is locked

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: fix potential use-after-free when purging GRU tlbs
Jack Steiner [Wed, 17 Jun 2009 23:28:33 +0000 (16:28 -0700)]
gru: fix potential use-after-free when purging GRU tlbs

Fix potential SGI GRU bug that could cause a use-after-free.  If one
thread in a task is flushing the GRU and another thread destroys the GRU
context, there is the potential to access a table after it has been freed.

Copy the gms pointer to a local variable before unlocking the gts table.
Note that no refcnt is needed for the gms - the reference is held
indirectly by the task's mm_struct.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: add user request to specify gru slice
Jack Steiner [Wed, 17 Jun 2009 23:28:33 +0000 (16:28 -0700)]
gru: add user request to specify gru slice

Add a user request to specify the gru instruction slice parameter for user
contexts.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: generic infrastructure for context options
Jack Steiner [Wed, 17 Jun 2009 23:28:32 +0000 (16:28 -0700)]
gru: generic infrastructure for context options

Change the user GRU request for specifying the "task_slice" option to use
a generic infrastructure that can be expanded in the future to include
additional context options.  No new capabilities are added with this
patch.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: cleanup gru inline functions
Jack Steiner [Wed, 17 Jun 2009 23:28:31 +0000 (16:28 -0700)]
gru: cleanup gru inline functions

Cleanup of GRU inline functions to eliminate unnecessary inline code.
Update function descriptions.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: delete user request for fetching chiplet status
Jack Steiner [Wed, 17 Jun 2009 23:28:31 +0000 (16:28 -0700)]
gru: delete user request for fetching chiplet status

Delete the user request for fetching the status of a GRU chiplet.  This
request has been made obsolete by other changes.  Note: this is not a
change to a user API - there are no compatibility issues with this change.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: collect per-context user statistics
Jack Steiner [Wed, 17 Jun 2009 23:28:30 +0000 (16:28 -0700)]
gru: collect per-context user statistics

Collect GRU statistics for each user GRU context.  Statistics are kept for
TLB misses & content resource contention.  Add user request for retrieving
the statistics.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: fix automatic retry of gru instruction failures
Jack Steiner [Wed, 17 Jun 2009 23:28:29 +0000 (16:28 -0700)]
gru: fix automatic retry of gru instruction failures

Fix bug in automatic retry of GRU instruction failures.  CBR substatus
(message queue failure) was being checked incorrectly.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: add user request to explicitly unload a gru context
Jack Steiner [Wed, 17 Jun 2009 23:28:28 +0000 (16:28 -0700)]
gru: add user request to explicitly unload a gru context

Add user function to explicitly unload GRU kernel contexts from the GRU.
Only contexts that are not in-use will be unloaded.

This function is primarily for testing.  It is not expected that this will
be used in normal production systems.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: fix cache coherency issues with instruction retry
Jack Steiner [Wed, 17 Jun 2009 23:28:28 +0000 (16:28 -0700)]
gru: fix cache coherency issues with instruction retry

Fix two problems related to GRU instruction failures.  Cache coherency is
not maintained for CBEs except when loading or unloading contexts.  When
reading a CBE to extract error information, the CBE must first be flushed
from the cache.

The function that reads kerrnel CBEs was reading the wrong CBE.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: update to rev 0.9 of gru spec
Jack Steiner [Wed, 17 Jun 2009 23:28:27 +0000 (16:28 -0700)]
gru: update to rev 0.9 of gru spec

Update GRU driver to the latest version of the GRU spec. This consists
of minor updates:
- changes & additions to error status bits
- new restriction on handling of TLB misses while in FMM mode
- new field (not used by software) in TFH

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: update gru kernel self tests
Jack Steiner [Wed, 17 Jun 2009 23:28:26 +0000 (16:28 -0700)]
gru: update gru kernel self tests

Change the kernel self tests that can be optionally executed on GRU
initialization.  This is primarily for testing.

Eliminate the BUG statements on failure and return bad status.  Add ioctl
interface to execute the tests on demand.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: support for asynchronous gru instructions
Jack Steiner [Wed, 17 Jun 2009 23:28:25 +0000 (16:28 -0700)]
gru: support for asynchronous gru instructions

Add support for asynchronous GRU instructions.  Currently, asynchronous
instructions are supported only for GRU instructions issued by the kernel.

[akpm@linux-foundation.org: build fix]
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: support instruction completion interrupts
Jack Steiner [Wed, 17 Jun 2009 23:28:25 +0000 (16:28 -0700)]
gru: support instruction completion interrupts

Add support for interrupts generated by GRU instruction completion.
Previously, the only interrupts were for TLB misses.  The hardware also
supports interrupts on instruction completion.  This will be supported for
instructions issued by the kernel.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: check context state on reload
Jack Steiner [Wed, 17 Jun 2009 23:28:24 +0000 (16:28 -0700)]
gru: check context state on reload

Check whether the gru state being loaded into a gru is from a new context
or a previously unloaded context.  If new, simply zero out the hardware
context; if unloaded and valid, reload the old state.

This change is primarily for reloading kernel contexts where the previous
is not required to be saved.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: fix handling of mesq failures
Jack Steiner [Wed, 17 Jun 2009 23:28:23 +0000 (16:28 -0700)]
gru: fix handling of mesq failures

Fix endcase in handling GRU message queue failures due to NACKs of PUT
requests.  Must ensure that the "present" bits are cleared before
resending the message.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: support contexts with zero dsrs or cbrs
Jack Steiner [Wed, 17 Jun 2009 23:28:23 +0000 (16:28 -0700)]
gru: support contexts with zero dsrs or cbrs

Support alocation of GRU contexts that contain zero DSR or CBR resources.
Some instructions do not require DSR resources.  Contexts without CBR
resources are useful for diagnostics.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: change resource assignment for kernel threads
Jack Steiner [Wed, 17 Jun 2009 23:28:22 +0000 (16:28 -0700)]
gru: change resource assignment for kernel threads

Change the way GRU resources are assigned for kernel threads.  GRU
contexts for kernel threads are now allocated on demand and can be stolen
by user processes when idle.  This allows MPI jobs to use ALL of the GRU
resources when the kernel is not using them.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: support cch_allocate for kernel threads
Jack Steiner [Wed, 17 Jun 2009 23:28:21 +0000 (16:28 -0700)]
gru: support cch_allocate for kernel threads

Change the interface to cch_allocate so that it can be used to allocate
GRU contexts for kernel threads.  Kernel threads use the GRU in unmapped
mode and do not require ASIDs for the GRU TLB.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: change context load and unload
Jack Steiner [Wed, 17 Jun 2009 23:28:20 +0000 (16:28 -0700)]
gru: change context load and unload

Remove "static" from the functions for loading/unloading GRU contexts.
These functions will be called from other GRU files.  Fix bug in unlocking
gru context.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: dynamic allocation of kernel contexts
Jack Steiner [Wed, 17 Jun 2009 23:28:20 +0000 (16:28 -0700)]
gru: dynamic allocation of kernel contexts

Change the interface to gru_alloc_gts() so that it can be used to allocate
GRU contexts for kernel threads.  Kernel threads do not have vdata
structures for the GRU contexts.  The GRU resource count are now passed
explicitly instead of inside the vdata structure.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: dump chiplet state
Jack Steiner [Wed, 17 Jun 2009 23:28:19 +0000 (16:28 -0700)]
gru: dump chiplet state

Add support for dumpping the state of an entire GRU chiplet.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogru: bug fixes for GRU exception handling
Jack Steiner [Wed, 17 Jun 2009 23:28:19 +0000 (16:28 -0700)]
gru: bug fixes for GRU exception handling

Bug fixes for GRU exception handling.  Additional fields from the CBR must
be returned to the user to allow the user to correctly diagnose GRU
exceptions.

Handle endcase in TFH TLB miss handling.  Verify that TFH actually
indicates a pending exception.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agokexec: sysrq: simplify sysrq-c handler
Neil Horman [Wed, 17 Jun 2009 23:28:17 +0000 (16:28 -0700)]
kexec: sysrq: simplify sysrq-c handler

Currently the sysrq-c handler is bit over-engineered.  Its behavior is
dependent on a few compile time and run time factors that alter its
behavior which is really unnecessecary.

If CONFIG_KEXEC is not configured, sysrq-c, crashes the system with a NULL
pointer dereference.  If CONFIG_KEXEC is configured, it calls crash_kexec
directly, which implies that the kexec kernel will either be booted (if
its been previously loaded), or it will simply do nothing (the no kexec
kernel has been loaded).

It would be much easier to just simplify the whole thing to dereference a
NULL pointer all the time regardless of configuration.  That way, it will
always try to crash the system, and if a kexec kernel has been loaded into
reserved space, it will still boot from the page fault trap handler
(assuming panic_on_oops is set appropriately).

[akpm@linux-foundation.org: build fix]
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Brayan Arraes <brayan@yack.com.br>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agow1-gpio: add external pull-up enable callback
Daniel Mack [Wed, 17 Jun 2009 23:28:15 +0000 (16:28 -0700)]
w1-gpio: add external pull-up enable callback

On embedded devices, sleep mode conditions can be tricky to handle,
Especially when processors tend to pull-down the w1 bus during sleep.  Bus
slaves (such as the ds2760) may interpret this as a reason for power-down
conditions and entirely switch off the device.

This patch adds a callback function pointer to let users switch on and off
the external pull-up resistor.  This lets the outside world know whether
the processor is currently actively driving the bus or not.

When this callback is not provided, the code behaviour won't change.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Acked-by: Ville Syrjala <syrjala@sci.fi>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodma-mapping: ia64: add CONFIG_DMA_API_DEBUG support
FUJITA Tomonori [Wed, 17 Jun 2009 23:28:14 +0000 (16:28 -0700)]
dma-mapping: ia64: add CONFIG_DMA_API_DEBUG support

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: "Luck, Tony" <tony.luck@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc; "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodma-mapping: ia64: use asm-generic/dma-mapping-common.h
FUJITA Tomonori [Wed, 17 Jun 2009 23:28:13 +0000 (16:28 -0700)]
dma-mapping: ia64: use asm-generic/dma-mapping-common.h

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: "Luck, Tony" <tony.luck@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc; "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodma-mapping: x86: use asm-generic/dma-mapping-common.h
FUJITA Tomonori [Wed, 17 Jun 2009 23:28:12 +0000 (16:28 -0700)]
dma-mapping: x86: use asm-generic/dma-mapping-common.h

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodma-mapping: add asm-generic/dma-mapping-common.h
FUJITA Tomonori [Wed, 17 Jun 2009 23:28:10 +0000 (16:28 -0700)]
dma-mapping: add asm-generic/dma-mapping-common.h

We unified x86 and IA64's handling of multiple dma mapping operations
(struct dma_map_ops in linux/dma-mapping.h) so we can remove duplication
in their arch/include/asm/dma-mapping.h.

This patchset adds include/asm-generic/dma-mapping-common.h that provides
some generic dma mapping function definitions for the users of struct
dma_map_ops.  This enables us to remove about 100 lines.  This also
enables us to easily add CONFIG_DMA_API_DEBUG support, which only x86
supports for now.  The 4th patch adds CONFIG_DMA_API_DEBUG support to IA64
by adding only 8 lines.

This patch:

This header file provides some mapping function definitions that the users
of struct dma_map_ops can use.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agogcov: enable GCOV_PROFILE_ALL for x86_64
Peter Oberparleiter [Wed, 17 Jun 2009 23:28:09 +0000 (16:28 -0700)]
gcov: enable GCOV_PROFILE_ALL for x86_64

Enable gcov profiling of the entire kernel on x86_64. Required changes
include disabling profiling for:

* arch/kernel/acpi/realmode and arch/kernel/boot/compressed:
  not linked to main kernel
* arch/vdso, arch/kernel/vsyscall_64 and arch/kernel/hpet:
  profiling causes segfaults during boot (incompatible context)

Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Li Wei <W.Li@Sun.COM>
Cc: Michael Ellerman <michaele@au1.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Heiko Carstens <heicars2@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <mschwid2@linux.vnet.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jeff Dike <jdike@addtoit.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>
10 years agogcov: add gcov profiling infrastructure
Peter Oberparleiter [Wed, 17 Jun 2009 23:28:08 +0000 (16:28 -0700)]
gcov: add gcov profiling infrastructure

Enable the use of GCC's coverage testing tool gcov [1] with the Linux
kernel.  gcov may be useful for:

 * debugging (has this code been reached at all?)
 * test improvement (how do I change my test to cover these lines?)
 * minimizing kernel configurations (do I need this option if the
   associated code is never run?)

The profiling patch incorporates the following changes:

 * change kbuild to include profiling flags
 * provide functions needed by profiling code
 * present profiling data as files in debugfs

Note that on some architectures, enabling gcc's profiling option
"-fprofile-arcs" for the entire kernel may trigger compile/link/
run-time problems, some of which are caused by toolchain bugs and
others which require adjustment of architecture code.

For this reason profiling the entire kernel is initially restricted
to those architectures for which it is known to work without changes.
This restriction can be lifted once an architecture has been tested
and found compatible with gcc's profiling. Profiling of single files
or directories is still available on all platforms (see config help
text).

[1] http://gcc.gnu.org/onlinedocs/gcc/Gcov.html

Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Li Wei <W.Li@Sun.COM>
Cc: Michael Ellerman <michaele@au1.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Heiko Carstens <heicars2@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <mschwid2@linux.vnet.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jeff Dike <jdike@addtoit.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>
10 years agoseq_file: add function to write binary data
Peter Oberparleiter [Wed, 17 Jun 2009 23:28:05 +0000 (16:28 -0700)]
seq_file: add function to write binary data

seq_write() can be used to construct seq_files containing arbitrary data.
Required by the gcov-profiling interface to synthesize binary profiling
data files.

Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Li Wei <W.Li@Sun.COM>
Cc: Michael Ellerman <michaele@au1.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Heiko Carstens <heicars2@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <mschwid2@linux.vnet.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jeff Dike <jdike@addtoit.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>
10 years agokernel: constructor support
Peter Oberparleiter [Wed, 17 Jun 2009 23:28:03 +0000 (16:28 -0700)]
kernel: constructor support

Call constructors (gcc-generated initcall-like functions) during kernel
start and module load.  Constructors are e.g.  used for gcov data
initialization.

Disable constructor support for usermode Linux to prevent conflicts with
host glibc.

Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Li Wei <W.Li@Sun.COM>
Cc: Michael Ellerman <michaele@au1.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Heiko Carstens <heicars2@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <mschwid2@linux.vnet.ibm.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>
10 years agoedac: Kconfig: fix the meaning of EDAC abbreviation
GeunSik Lim [Wed, 17 Jun 2009 23:28:02 +0000 (16:28 -0700)]
edac: Kconfig: fix the meaning of EDAC abbreviation

Fix the meaning of EDAC(Error Detection And Correction) correctly.

[akpm@linux-foundation.org: add missing space]
Signed-off-by: GeunSik Lim <geunsik.lim@samsung.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoedac: add missing __devexit_p()
Mike Frysinger [Wed, 17 Jun 2009 23:28:01 +0000 (16:28 -0700)]
edac: add missing __devexit_p()

The remove function uses __devexit, so the .remove assignment needs
__devexit_p() to fix a build error with hotplug disabled.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoedac: cpc925 MC platform device setup
Harry Ciao [Wed, 17 Jun 2009 23:28:00 +0000 (16:28 -0700)]
edac: cpc925 MC platform device setup

Fix up the number of cells for the values of CPC925 Memory Controller,
and setup related platform device during system booting up, against
which CPC925 Memory Controller EDAC driver would be matched.

Signed-off-by: Harry Ciao <qingtao.cao@windriver.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoedac: add edac_device_alloc_index()
Harry Ciao [Wed, 17 Jun 2009 23:27:59 +0000 (16:27 -0700)]
edac: add edac_device_alloc_index()

Add edac_device_alloc_index(), because for MAPLE platform there may
exist several EDAC driver modules that could make use of
edac_device_ctl_info structure at the same time. The index allocation
for these structures should be taken care of by EDAC core.

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Harry Ciao <qingtao.cao@windriver.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoedac: add CPC925 Memory Controller driver
Harry Ciao [Wed, 17 Jun 2009 23:27:58 +0000 (16:27 -0700)]
edac: add CPC925 Memory Controller driver

Introduce IBM CPC925 EDAC driver, which makes use of ECC, CPU and
HyperTransport Link error detections and corrections on the IBM
CPC925 Bridge and Memory Controller.

[akpm@linux-foundation.org: cleanup]
Signed-off-by: Harry Ciao <qingtao.cao@windriver.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agofutex: documentation: fix inconsistent description of futex list_op_pending
Matt Helsley [Wed, 17 Jun 2009 23:27:58 +0000 (16:27 -0700)]
futex: documentation: fix inconsistent description of futex list_op_pending

Strictly speaking list_op_pending points to the 'lock entry', not the
'lock word' (which is actually at 'offset' from 'lock entry').  We can
infer this based on reading the code in kernel/futex.c:

    struct robust_list __user *entry, *next_entry, *pending;
...
            if (fetch_robust_entry(&pending, &head->list_op_pending, &pip))
                    return;
            ...
            if (pending)
                    handle_futex_death((void __user *)pending + futex_offset,
                                       curr, pip);

Which is also consistent with the rest of the docs on robust futex lists.

Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linuxtronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipcns: move free_ipcs() proto
Alexey Dobriyan [Wed, 17 Jun 2009 23:27:57 +0000 (16:27 -0700)]
ipcns: move free_ipcs() proto

Function is really private to ipc/ and avoid struct kern_ipc_perm
forward declaration.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipcns: make free_ipc_ns() static
Alexey Dobriyan [Wed, 17 Jun 2009 23:27:56 +0000 (16:27 -0700)]
ipcns: make free_ipc_ns() static

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agonsproxy: extract create_nsproxy()
Alexey Dobriyan [Wed, 17 Jun 2009 23:27:56 +0000 (16:27 -0700)]
nsproxy: extract create_nsproxy()

clone_nsproxy() does useless copying of old nsproxy -- every pointer will
be rewritten to new ns or to old ns.  Remove copying, rename
clone_nsproxy(), create_nsproxy() will be used by C/R code to create fresh
nsproxy on restart.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipcns: extract create_ipc_ns()
Alexey Dobriyan [Wed, 17 Jun 2009 23:27:55 +0000 (16:27 -0700)]
ipcns: extract create_ipc_ns()

clone_ipc_ns() is misnamed, it doesn't clone anything and doesn't use
passed parameter.  Rename it.

create_ipc_ns() will be used by C/R to create fresh ipcns.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoipcns: remove useless get/put while CLONE_NEWIPC
Alexey Dobriyan [Wed, 17 Jun 2009 23:27:54 +0000 (16:27 -0700)]
ipcns: remove useless get/put while CLONE_NEWIPC

copy_ipcs() doesn't actually copy anything. If new ipcns is created, it's
created from scratch, in this case get/put on old ipcns isn't needed.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoutsns: extract creeate_uts_ns()
Alexey Dobriyan [Wed, 17 Jun 2009 23:27:54 +0000 (16:27 -0700)]
utsns: extract creeate_uts_ns()

create_uts_ns() will be used by C/R to create fresh uts_ns.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>