firefly-linux-kernel-4.4.55.git
11 years agosh-pfc: sh7372: Add HDMI pin groups and functions
Laurent Pinchart [Fri, 19 Apr 2013 10:31:08 +0000 (12:31 +0200)]
sh-pfc: sh7372: Add HDMI pin groups and functions

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: sh7372: Add FSI pin groups and functions
Laurent Pinchart [Fri, 19 Apr 2013 10:31:08 +0000 (12:31 +0200)]
sh-pfc: sh7372: Add FSI pin groups and functions

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: sh7372: Add FLCTL pin groups and functions
Laurent Pinchart [Fri, 19 Apr 2013 10:31:08 +0000 (12:31 +0200)]
sh-pfc: sh7372: Add FLCTL pin groups and functions

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: sh7372: Add CEU pin groups and functions
Laurent Pinchart [Fri, 19 Apr 2013 10:31:08 +0000 (12:31 +0200)]
sh-pfc: sh7372: Add CEU pin groups and functions

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: sh7372: Add BSC pin groups and functions
Laurent Pinchart [Fri, 19 Apr 2013 10:31:08 +0000 (12:31 +0200)]
sh-pfc: sh7372: Add BSC pin groups and functions

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7778: add SDHI support
Kuninori Morimoto [Fri, 19 Apr 2013 03:08:23 +0000 (20:08 -0700)]
sh-pfc: r8a7778: add SDHI support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7778: add common PFC macro helper
Kuninori Morimoto [Fri, 19 Apr 2013 03:07:34 +0000 (20:07 -0700)]
sh-pfc: r8a7778: add common PFC macro helper

pfc-r8a7778 will have many devices pfc support in the future,
and current pfc-r8a7778 is using pin/mux definition macro for SCIF.
The device definition style using macro is readable code IMO,
but creating new macro for each devices is not good sense.
This patch adds common SH_PFC_xx() macro for each new feature devices

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7779: add VIN pin groups
Vladimir Barinov [Tue, 16 Apr 2013 22:17:28 +0000 (22:17 +0000)]
sh-pfc: r8a7779: add VIN pin groups

Add VIN DATA[0:7]/CLK/HSYNC/VSYNC pin groups to R8A7779 PFC driver.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
[horms+renesas@verge.net.au: trivial rebase on top of
 "sh-pfc: r8a7779: Don't group USB OVC and PENC pins"]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7779: use RCAR_GP_PIN() on _GP_GPIO() macro
Kuninori Morimoto [Tue, 9 Apr 2013 04:54:18 +0000 (04:54 +0000)]
sh-pfc: r8a7779: use RCAR_GP_PIN() on _GP_GPIO() macro

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7779: Replace hardcoded pin numbers with RCAR_GP_PIN macro
Laurent Pinchart [Mon, 8 Apr 2013 10:05:31 +0000 (12:05 +0200)]
sh-pfc: r8a7779: Replace hardcoded pin numbers with RCAR_GP_PIN macro

Use the RCAR_GP_PIN macro to convert from the documentation pin number
space to the linear pinctrl space.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7740: Add SCIFA1 data group
Bastian Hecht [Wed, 17 Apr 2013 10:34:01 +0000 (10:34 +0000)]
sh-pfc: r8a7740: Add SCIFA1 data group

Add SCIFA1 as preparation to switch to pinctrl in board files.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: Add r8a7778 pinmux support
Kuninori Morimoto [Fri, 12 Apr 2013 05:37:20 +0000 (05:37 +0000)]
sh-pfc: Add r8a7778 pinmux support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
11 years agosh-pfc: r8a7790: Don't use GPIO enum entries
Laurent Pinchart [Mon, 8 Apr 2013 09:36:20 +0000 (11:36 +0200)]
sh-pfc: r8a7790: Don't use GPIO enum entries

Refactor the GPIO macro magic to use GPIO numbers directly instead of
the GPIO_GP_x_y enum entries. This will allow removing the GPIO enum
entries from the mach/r8a7790.h header.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7790: Remove function GPIOs
Laurent Pinchart [Mon, 8 Apr 2013 09:36:19 +0000 (11:36 +0200)]
sh-pfc: r8a7790: Remove function GPIOs

No r8a7770 platform use the function GPIOs API. Remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[horms+renesas@verge.net.au: fixed typo in changelog: r8a7779 -> r8a7770]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7790: Remove GPIO data
Laurent Pinchart [Mon, 8 Apr 2013 09:36:18 +0000 (11:36 +0200)]
sh-pfc: r8a7790: Remove GPIO data

GPIOs are now handled by a separate driver, remove GPIO data from the
SoC information structure.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7790: Add SCIF, SCIFA and SCIFB pin groups and functions
Laurent Pinchart [Mon, 8 Apr 2013 09:36:16 +0000 (11:36 +0200)]
sh-pfc: r8a7790: Add SCIF, SCIFA and SCIFB pin groups and functions

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7790: Add INTC pin groups and functions
Laurent Pinchart [Mon, 8 Apr 2013 09:36:15 +0000 (11:36 +0200)]
sh-pfc: r8a7790: Add INTC pin groups and functions

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7790: Add ETH pin groups and functions
Laurent Pinchart [Mon, 8 Apr 2013 09:36:14 +0000 (11:36 +0200)]
sh-pfc: r8a7790: Add ETH pin groups and functions

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: Remove dependency on GPIOLIB
Laurent Pinchart [Tue, 9 Apr 2013 14:06:01 +0000 (14:06 +0000)]
sh-pfc: Remove dependency on GPIOLIB

Make GPIO support optional for platforms that don't support GPIOLIB.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: Add entries for INTC external IRQs
Bastian Hecht [Tue, 9 Apr 2013 10:48:50 +0000 (10:48 +0000)]
sh-pfc: Add entries for INTC external IRQs

We add all necessary entries to support the external IRQs from the INTC.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: Initial r8a7790 PFC support
Koji Matsuoka [Mon, 8 Apr 2013 02:08:53 +0000 (11:08 +0900)]
sh-pfc: Initial r8a7790 PFC support

Add initial PFC support for the r8a7790 SoC.

At this point only GPIO interface is supported, move to
newer interfaces planned as incremental changes.

Original authors is Koji Matsuoka-san, thanks for him
and his team for the heavy lifting. Adjusted by Magnus
to work together with updated code in drivers/pinctrl.

Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@rms.renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7778: Register PFC device
Kuninori Morimoto [Fri, 12 Apr 2013 05:37:50 +0000 (05:37 +0000)]
ARM: shmobile: r8a7778: Register PFC device

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: add GPIO IRQ macro
Kuninori Morimoto [Thu, 18 Apr 2013 06:41:30 +0000 (23:41 -0700)]
ARM: shmobile: add GPIO IRQ macro

R-Car series gpio_rcar driver can control GPIO IRQ today.
It needs base IRQ number for gpio_rcar_config :: .irq_base
This patch adds macro for GPIO IRQ.
This patch was tested on Bock-W board

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agogpio-rcar: Add RCAR_GP_PIN macro
Laurent Pinchart [Mon, 8 Apr 2013 09:36:13 +0000 (11:36 +0200)]
gpio-rcar: Add RCAR_GP_PIN macro

Pins are numbered in the R-Car family documentation using a bank number
and a pin number in the bank. As the Linux pin number space is linear,
we need to flatten this by multiplying the bank number by 32 and adding
the pin number. The resulting number bear no directly visible
relationship  to the documentation, making it error-prone.

Add a RCAR_GP_PIN macro to convert from the documentation pin number
space to the linear Linux space.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[horms+renesas@verge.net.au: non-trivial rebase on top of
 "sh-pfc: r8a7779: Don't group USB OVC and PENC pins"]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agogpio-rcar: Add support for IRQ_TYPE_EDGE_BOTH
Simon Horman [Fri, 24 May 2013 09:47:24 +0000 (18:47 +0900)]
gpio-rcar: Add support for IRQ_TYPE_EDGE_BOTH

As hardware support for this feature is not universal for all SoCs a flag,
has_both_edge_trigger, has been added to the platform data of the driver to
allow this feature to be enabled.

The motivation for this is to allow use of the gpio-keys driver on the
lager board which is based on the r8a7790 SoC. The V2 of this patch has been
fully exercised using that driver on that board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agogpio-rcar: Make the platform data gpio_base field signed
Laurent Pinchart [Fri, 10 May 2013 14:48:36 +0000 (16:48 +0200)]
gpio-rcar: Make the platform data gpio_base field signed

The gpio_base field is used to specify the desired GPIO base for the
GPIO controller. The GPIO core can automatically allocate a GPIO number
range when the base is set to -1. To make this possible, make the field
signed.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agogpio-rcar: R-Car GPIO IRQ share interrupt
Kuninori Morimoto [Thu, 18 Apr 2013 06:40:57 +0000 (23:40 -0700)]
gpio-rcar: R-Car GPIO IRQ share interrupt

R-Car H1 or Gen2 GPIO interrupts are assigned per each GPIO domain,
but, Gen1 E1/M1 GPIO interrupts are shared for all GPIO domain.
gpio-rcar driver needs IRQF_SHARED flags for these.
This patch was tested on Bock-W board

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: sh73a0: Update CMT clockevent rating to 80
Simon Horman [Wed, 22 May 2013 10:47:05 +0000 (19:47 +0900)]
ARM: shmobile: sh73a0: Update CMT clockevent rating to 80

Update the CMT clockevent rating from 125 to 80.

This resolves a boot-failure regression for kzm9g-reference in v3.10-rc1
introduced by f7db706b132f11c79ae1d74b2382e0926cf31644 ("ARM: 7674/1: smp:
Avoid dummy clockevent being preferred over real").

The patch noted above reduces the rating of dummy clockevent from 400 to 100.
This patch reduces the rating of CMT so that it is once again less than that
of the dummy clockevent.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7779: Don't group USB OVC and PENC pins
Laurent Pinchart [Tue, 21 May 2013 10:39:31 +0000 (12:39 +0200)]
sh-pfc: r8a7779: Don't group USB OVC and PENC pins

The USB_OVCn pins are alternate options for USB over-current detection
when using a 3.3V USB interface. As they're not mandatory they can be
used independently of the USB PENC pins. Don't group the USB_OVCn and
PENC pins to avoid conflicts when the USB_OVCn pins are used by another
function.

Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoLinux 3.10-rc2
Linus Torvalds [Mon, 20 May 2013 21:37:38 +0000 (14:37 -0700)]
Linux 3.10-rc2

11 years agoMerge tag 'stable/for-linus-3.10-rc1-tag' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Mon, 20 May 2013 21:25:19 +0000 (14:25 -0700)]
Merge tag 'stable/for-linus-3.10-rc1-tag' of git://git./linux/kernel/git/konrad/xen

Pull Xen fixes from Konrad Rzeszutek Wilk:
 - Regression fix in xen privcmd fixing a memory leak.
 - Add Documentation for tmem driver.
 - Simplify and remove code in the tmem driver.
 - Cleanups.

* tag 'stable/for-linus-3.10-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: Fixed assignment error in if statement
  xen/xenbus: Fixed over 80 character limit issue
  xen/xenbus: Fixed indentation error in switch case
  xen/tmem: Don't use self[ballooning|shrinking] if frontswap is off.
  xen/tmem: Remove the usage of '[no|]selfballoon' and use 'tmem.selfballooning' bool instead.
  xen/tmem: Remove the usage of 'noselfshrink' and use 'tmem.selfshrink' bool instead.
  xen/tmem: Remove the boot options and fold them in the tmem.X parameters.
  xen/tmem: s/disable_// and change the logic.
  xen/tmem: Fix compile warning.
  xen/tmem: Split out the different module/boot options.
  xen/tmem: Move all of the boot and module parameters to the top of the file.
  xen/tmem: Cleanup. Remove the parts that say temporary.
  xen/privcmd: fix condition in privcmd_close()

11 years agoMerge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...
Linus Torvalds [Mon, 20 May 2013 18:36:52 +0000 (11:36 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Error path fixes for abituguru and iio_hwmon drivers.

 - Drop erroneously created attributes from nct6775 driver.

 - Drop redundant safety on cache lifetime for tmp401 driver.

 - Add explicit maintainer for LM95234 and TMP401 drivers.

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  MAINTAINERS: Add myself as maintainer for LM95234 and TMP401 drivers
  hwmon: (tmp401) Drop redundant safety on cache lifetime
  hwmon: fix error return code in abituguru_probe()
  hwmon: (iio_hwmon) Fix null pointer dereference
  hwmon: (nct6775) Do not create non-existing attributes
  hwmon: (iio_hwmon) Fix missing iio_channel_release_all call if devm_kzalloc fail

11 years agox86: Fix bit corruption at CPU resume time
Linus Torvalds [Mon, 20 May 2013 18:36:03 +0000 (11:36 -0700)]
x86: Fix bit corruption at CPU resume time

In commit 78d77df71510 ("x86-64, init: Do not set NX bits on non-NX
capable hardware") we added the early_pmd_flags that gets the NX bit set
when a CPU supports NX. However, the new variable was marked __initdata,
because the main _use_ of this is in an __init routine.

However, the bit setting happens from secondary_startup_64(), which is
called not only at bootup, but on every secondary CPU start.  Including
resuming from STR and at CPU hotplug time.  So the value cannot be
__initdata.

Reported-bisected-and-tested-by: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org # v3.9
Acked-by: Peter Anvin <hpa@linux.intel.com>
Cc: Fernando Luis Vázquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoxen: Fixed assignment error in if statement
Lisa Nguyen [Thu, 16 May 2013 05:59:40 +0000 (22:59 -0700)]
xen: Fixed assignment error in if statement

Fixed assignment error in if statement in balloon.c

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoxen/xenbus: Fixed over 80 character limit issue
Lisa Nguyen [Thu, 16 May 2013 06:48:03 +0000 (23:48 -0700)]
xen/xenbus: Fixed over 80 character limit issue

Fixed the format length of the xenbus_backend_ioctl()
function to meet the 80 character limit in
xenbus_dev_backend.c

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoxen/xenbus: Fixed indentation error in switch case
Lisa Nguyen [Thu, 16 May 2013 06:47:11 +0000 (23:47 -0700)]
xen/xenbus: Fixed indentation error in switch case

Fixed the indentation error in the switch case in
xenbus_dev_backend.c

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoMerge tag 'pinctrl-fixes-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 20 May 2013 14:59:46 +0000 (07:59 -0700)]
Merge tag 'pinctrl-fixes-v3.10-2' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl fixes from Linus Walleij:

 - Three fixes to make the boot path for device tree work properly on
   the Nomadik pin controller.

 - Compile warning fix for the vt8500 driver.

 - Fix error path in pinctrl-single.

 - Free mappings in error path of the Lantiq controller.

 - Documentation fixes.

* tag 'pinctrl-fixes-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl/lantiq: Free mapping configs for both pin and groups
  pinctrl: single: fix error return code in pcs_parse_one_pinctrl_entry()
  pinctrl: generic: Fix typos and clarify comments
  pinctrl: vt8500: Fix incorrect data in WM8750 pinctrl table
  pinctrl: abx500: Rejiggle platform data and DT initialisation
  pinctrl: abx500: Specify failed sub-driver by ID instead of driver_data

11 years agoMerge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Mon, 20 May 2013 14:58:51 +0000 (07:58 -0700)]
Merge branch 'rc-fixes' of git://git./linux/kernel/git/mmarek/kbuild

Pull kbuild fix from Michal Marek:
 "In an attempt to improve make rpm-pkg, I broke make binrpm-pkg"

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  package: Makefile: unbreak binrpm-pkg target

11 years agoMAINTAINERS: Add myself as maintainer for LM95234 and TMP401 drivers
Guenter Roeck [Mon, 20 May 2013 03:44:27 +0000 (20:44 -0700)]
MAINTAINERS: Add myself as maintainer for LM95234 and TMP401 drivers

I wrote the LM95234 driver and extended the TMP401 driver substantially,
and I have hardware to test both, so it makes sense to explicitly
maintain them.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
11 years agoMerge tag 'dm-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm
Linus Torvalds [Sun, 19 May 2013 19:35:30 +0000 (12:35 -0700)]
Merge tag 'dm-3.10-fixes' of git://git./linux/kernel/git/agk/linux-dm

Pull device mapper fix from Alasdair Kergon:
 "A patch to fix metadata resizing with device-mapper thin devices."

* tag 'dm-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
  dm thin: fix metadata dev resize detection

11 years agodm thin: fix metadata dev resize detection
Alasdair G Kergon [Sun, 19 May 2013 17:57:50 +0000 (18:57 +0100)]
dm thin: fix metadata dev resize detection

Fix detection of the need to resize the dm thin metadata device.

The code incorrectly tried to extend the metadata device when it
didn't need to due to a merging error with patch 24347e9 ("dm thin:
detect metadata device resizing").

  device-mapper: transaction manager: couldn't open metadata space map
  device-mapper: thin metadata: tm_open_with_sm failed
  device-mapper: thin: aborting transaction failed
  device-mapper: thin: switching pool to failure mode

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
11 years agohwmon: (tmp401) Drop redundant safety on cache lifetime
Jean Delvare [Sun, 19 May 2013 14:57:30 +0000 (16:57 +0200)]
hwmon: (tmp401) Drop redundant safety on cache lifetime

time_after (as opposed to time_after_equal) already ensures that the
cache lifetime is at least as much as requested. There is no point in
manually adding another jiffy to that value, and this can confuse the
reader into wrong interpretation.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sat, 18 May 2013 18:35:28 +0000 (11:35 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "Miao Xie has been very busy, fixing races and enospc problems and many
  other small but important pieces.

  Alexandre Oliva discovered some problems with how our error handling
  was interacting with the block layer and for now has disabled our
  partial handling of sub-page writes.  The real sub-page work is in a
  series of patches from IBM that we still need to integrate and test.
  The code Alexandre has turned off was really incomplete.

  Josef has more error handling fixes and an important fix for the new
  skinny extent format.

  This also has my fix for the tracepoint crash from late in 3.9.  It's
  the first stage in a larger clean up to get rid of btrfs_bio and make
  a proper bioset for all the items we need to tack into the bio.  For
  now the bioset only holds our mirror_num and stripe_index, but for the
  next merge window I'll shuffle more in."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (25 commits)
  Btrfs: use a btrfs bioset instead of abusing bio internals
  Btrfs: make sure roots are assigned before freeing their nodes
  Btrfs: explicitly use global_block_rsv for quota_tree
  btrfs: do away with non-whole_page extent I/O
  Btrfs: don't invoke btrfs_invalidate_inodes() in the spin lock context
  Btrfs: remove BUG_ON() in btrfs_read_fs_tree_no_radix()
  Btrfs: pause the space balance when remounting to R/O
  Btrfs: fix unprotected root node of the subvolume's inode rb-tree
  Btrfs: fix accessing a freed tree root
  Btrfs: return errno if possible when we fail to allocate memory
  Btrfs: update the global reserve if it is empty
  Btrfs: don't steal the reserved space from the global reserve if their space type is different
  Btrfs: optimize the error handle of use_block_rsv()
  Btrfs: don't use global block reservation for inode cache truncation
  Btrfs: don't abort the current transaction if there is no enough space for inode cache
  Correct allowed raid levels on balance.
  Btrfs: fix possible memory leak in replace_path()
  Btrfs: fix possible memory leak in the find_parent_nodes()
  Btrfs: don't allow device replace on RAID5/RAID6
  Btrfs: handle running extent ops with skinny metadata
  ...

11 years agoMerge branch 'devm_no_resource_check' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 May 2013 17:54:54 +0000 (10:54 -0700)]
Merge branch 'devm_no_resource_check' of git://git./linux/kernel/git/wsa/linux

Pull devm usage cleanup from Wolfram Sang:
 "Lately, I have been experimenting how to improve the devm interface to
  make writing device drivers easier and less error prone while also
  getting rid of its subtle issues.  I think it has more potential but
  still needs work and definately conistency, especiall in its usage.

  The first thing I come up with is a low hanging fruit regarding
  devm_ioremap_resouce().  This function already checks if the passed
  resource is valid and gives an error message if not.  So, we can
  remove similar checks from the drivers and get rid of a bit of code
  and a number of inconsistent error strings.

  This series only removes the unneeded check iff devm_ioremap_resource
  follows platform_get_resource directly.  The previous version tried to
  shuffle code if needed, too, what lead to an embarrasing bug.  It
  turned out to me that shuffling code for all cases found will make the
  automated script too complex, so I am unsure if an automated cleanup
  is the proper tool for this case.  Removing the easy stuff seems
  worthwhile to me, though.

  Despite various architectures and platform dependencies, I managed to
  compile test 45 out of 57 modified files locally using heuristics and
  defconfigs."

Pulled because: 296 deletions, 0 additions.

* 'devm_no_resource_check' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (33 commits)
  sound/soc/kirkwood: don't check resource with devm_ioremap_resource
  sound/soc/fsl: don't check resource with devm_ioremap_resource
  arch/mips/lantiq/xway: don't check resource with devm_ioremap_resource
  arch/arm/plat-samsung: don't check resource with devm_ioremap_resource
  arch/arm/mach-tegra: don't check resource with devm_ioremap_resource
  drivers/watchdog: don't check resource with devm_ioremap_resource
  drivers/w1/masters: don't check resource with devm_ioremap_resource
  drivers/video/omap2/dss: don't check resource with devm_ioremap_resource
  drivers/video/omap2: don't check resource with devm_ioremap_resource
  drivers/usb/phy: don't check resource with devm_ioremap_resource
  drivers/usb/host: don't check resource with devm_ioremap_resource
  drivers/usb/gadget: don't check resource with devm_ioremap_resource
  drivers/usb/chipidea: don't check resource with devm_ioremap_resource
  drivers/thermal: don't check resource with devm_ioremap_resource
  drivers/staging/nvec: don't check resource with devm_ioremap_resource
  drivers/staging/dwc2: don't check resource with devm_ioremap_resource
  drivers/spi: don't check resource with devm_ioremap_resource
  drivers/rtc: don't check resource with devm_ioremap_resource
  drivers/pwm: don't check resource with devm_ioremap_resource
  drivers/pinctrl: don't check resource with devm_ioremap_resource
  ...

11 years agoMerge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Linus Torvalds [Sat, 18 May 2013 17:46:50 +0000 (10:46 -0700)]
Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux

Pull device tree fixes from Grant Likely:
 "Device tree bug fixes and documentation updates for v3.10

  Nothing earth shattering here.  A build failure fix, and fix for
  releasing nodes and some documenation updates."

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
  Documentation/devicetree: make semantic of initrd-end more explicit
  of/base: release the node correctly in of_parse_phandle_with_args()
  of/documentation: move video device bindings to a common place
  <linux/of_platform.h>: fix compilation warnings with DT disabled

11 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Sat, 18 May 2013 17:36:37 +0000 (10:36 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS fixes from Ralf Baechle:
 "Patching up across the field.  The reversion of the two ASID patches
  is particularly important as it was breaking many platforms."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: ralink: use the dwc2 driver for the rt305x USB controller
  MIPS: Extract schedule_mfi info from __schedule
  MIPS: Fix sibling call handling in get_frame_info
  MIPS: MSP71xx: remove inline marking of EXPORT_SYMBOL functions
  MIPS: Make virt_to_phys() work for all unmapped addresses.
  MIPS: Fix build error for crash_dump.c in 3.10-rc1
  MIPS: Xway: Fix clk leak
  Revert "MIPS: Allow ASID size to be determined at boot time."
  Revert "MIPS: microMIPS: Support dynamic ASID sizing."

11 years agoMerge tag 'kmemleak-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Sat, 18 May 2013 17:21:32 +0000 (10:21 -0700)]
Merge tag 'kmemleak-fixes' of git://git./linux/kernel/git/cmarinas/linux-aarch64

Pull kmemleak patches from Catalin Marinas:
 "Kmemleak now scans all the writable and non-executable module sections
  to avoid false positives (previously it was only scanning specific
  sections and missing .ref.data)."

* tag 'kmemleak-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  kmemleak: No need for scanning specific module sections
  kmemleak: Scan all allocated, writeable and not executable module sections

11 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Sat, 18 May 2013 17:20:46 +0000 (10:20 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 fixes from Catalin Marinas:
 "Fixes for duplicate definition of early_console, kernel/time/Kconfig
  include, __flush_dcache_all() set/way computing, debug (locking, bit
  testing).  The of_platform_populate() was moved to an arch_init_call()
  to allow subsys_init_call() drivers to probe the DT."

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: debug: fix mdscr.ss check when enabling debug exceptions
  arm64: Do not source kernel/time/Kconfig explicitly
  arm64: mm: Fix operands of clz in __flush_dcache_all
  arm64: Invoke the of_platform_populate() at arch_initcall() level
  arm64: debug: clear mdscr_el1 instead of taking the OS lock
  arm64: Fix duplicate definition of early_console

11 years agosound/soc/kirkwood: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:57 +0000 (15:19 +0200)]
sound/soc/kirkwood: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agosound/soc/fsl: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:57 +0000 (15:19 +0200)]
sound/soc/fsl: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agoarch/mips/lantiq/xway: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:56 +0000 (15:19 +0200)]
arch/mips/lantiq/xway: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: John Crispin <blogic@openwrt.org>
11 years agoarch/arm/plat-samsung: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:55 +0000 (15:19 +0200)]
arch/arm/plat-samsung: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agoarch/arm/mach-tegra: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:55 +0000 (15:19 +0200)]
arch/arm/mach-tegra: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/watchdog: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:54 +0000 (15:19 +0200)]
drivers/watchdog: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/w1/masters: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:53 +0000 (15:19 +0200)]
drivers/w1/masters: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/video/omap2/dss: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:53 +0000 (15:19 +0200)]
drivers/video/omap2/dss: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/video/omap2: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:53 +0000 (15:19 +0200)]
drivers/video/omap2: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/usb/phy: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:53 +0000 (15:19 +0200)]
drivers/usb/phy: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/usb/host: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:52 +0000 (15:19 +0200)]
drivers/usb/host: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
11 years agodrivers/usb/gadget: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:52 +0000 (15:19 +0200)]
drivers/usb/gadget: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/usb/chipidea: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:52 +0000 (15:19 +0200)]
drivers/usb/chipidea: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
11 years agodrivers/thermal: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:51 +0000 (15:19 +0200)]
drivers/thermal: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/staging/nvec: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:51 +0000 (15:19 +0200)]
drivers/staging/nvec: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/staging/dwc2: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:51 +0000 (15:19 +0200)]
drivers/staging/dwc2: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/spi: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:51 +0000 (15:19 +0200)]
drivers/spi: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/rtc: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:50 +0000 (15:19 +0200)]
drivers/rtc: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/pwm: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:50 +0000 (15:19 +0200)]
drivers/pwm: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/pinctrl: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:50 +0000 (15:19 +0200)]
drivers/pinctrl: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/net/ethernet/renesas: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:49 +0000 (15:19 +0200)]
drivers/net/ethernet/renesas: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/mtd/nand: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:49 +0000 (15:19 +0200)]
drivers/mtd/nand: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/misc: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:49 +0000 (15:19 +0200)]
drivers/misc: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/mfd: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:49 +0000 (15:19 +0200)]
drivers/mfd: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/memory: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:48 +0000 (15:19 +0200)]
drivers/memory: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/i2c/busses: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:48 +0000 (15:19 +0200)]
drivers/i2c/busses: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Barry Song <Baohua.Song@csr.com>
11 years agodrivers/gpu/host1x/drm: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:47 +0000 (15:19 +0200)]
drivers/gpu/host1x/drm: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/gpu/drm/exynos: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:47 +0000 (15:19 +0200)]
drivers/gpu/drm/exynos: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
11 years agodrivers/gpio: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:47 +0000 (15:19 +0200)]
drivers/gpio: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/dma: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:47 +0000 (15:19 +0200)]
drivers/dma: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
11 years agodrivers/cpufreq: don't check resource with devm_ioremap_resource
Wolfram Sang [Sun, 12 May 2013 13:19:46 +0000 (15:19 +0200)]
drivers/cpufreq: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
11 years agoMerge branch 'for-chris' of git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs...
Chris Mason [Sat, 18 May 2013 01:53:17 +0000 (21:53 -0400)]
Merge branch 'for-chris' of git://git./linux/kernel/git/josef/btrfs-next

11 years agoBtrfs: use a btrfs bioset instead of abusing bio internals
Chris Mason [Fri, 17 May 2013 22:30:14 +0000 (18:30 -0400)]
Btrfs: use a btrfs bioset instead of abusing bio internals

Btrfs has been pointer tagging bi_private and using bi_bdev
to store the stripe index and mirror number of failed IOs.

As bios bubble back up through the call chain, we use these
to decide if and how to retry our IOs.  They are also used
to count IO failures on a per device basis.

Recently a bio tracepoint was added lead to crashes because
we were abusing bi_bdev.

This commit adds a btrfs bioset, and creates explicit fields
for the mirror number and stripe index.  The plan is to
extend this structure for all of the fields currently in
struct btrfs_bio, which will mean one less kmalloc in
our IO path.

Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Reported-by: Tejun Heo <tj@kernel.org>
11 years agoBtrfs: make sure roots are assigned before freeing their nodes
Josef Bacik [Fri, 17 May 2013 18:06:51 +0000 (14:06 -0400)]
Btrfs: make sure roots are assigned before freeing their nodes

If we fail to load the chunk tree we'll call free_root_pointers, except we may
not have assigned the roots for the dev_root/extent_root/csum_root yet, so we
could NULL pointer deref at this point.  Just add checks to make sure these
roots are set to keep us from panicing.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: explicitly use global_block_rsv for quota_tree
Stefan Behrens [Thu, 16 May 2013 14:48:19 +0000 (14:48 +0000)]
Btrfs: explicitly use global_block_rsv for quota_tree

The quota_tree was set up to use the empty_block_rsv before
which would be problematic when the filesystem is filled up
and ENOSPC happens during internal operations while the quota
tree is updated and COWed (when the btrfs_qgroup_info_item
items) are written. In fact, use_block_rsv() which is used
in btrfs_cow_block() falls back to the global_block_rsv in
this case. But just in order to make it more clear what is
happening, change it to explicitly use the global_block_rsv.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agobtrfs: do away with non-whole_page extent I/O
Alexandre Oliva [Wed, 15 May 2013 15:38:55 +0000 (11:38 -0400)]
btrfs: do away with non-whole_page extent I/O

end_bio_extent_readpage computes whole_page based on bv_offset and
bv_len, without taking into account that blk_update_request may modify
them when some of the blocks to be read into a page produce a read
error.  This would cause the read to unlock only part of the file
range associated with the page, which would in turn leave the entire
page locked, which would not only keep the process blocked instead of
returning -EIO to it, but also prevent any further access to the file.

It turns out that btrfs always issues whole-page reads and writes.
The special handling of non-whole_page appears to be a mistake or a
left-over from a time when this wasn't the case.  Indeed,
end_bio_extent_writepage distinguished between whole_page and
non-whole_page writes but behaved identically in both cases!

I've replaced the whole_page computations with warnings, just to be
sure that we're not issuing partial page reads or writes.  The
warnings should probably just go away some time.

Signed-off-by: Alexandre Oliva <oliva@gnu.org>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't invoke btrfs_invalidate_inodes() in the spin lock context
Miao Xie [Wed, 15 May 2013 07:48:21 +0000 (07:48 +0000)]
Btrfs: don't invoke btrfs_invalidate_inodes() in the spin lock context

btrfs_invalidate_inodes() may sleep, so we should not invoke it in the
spin lock context. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: remove BUG_ON() in btrfs_read_fs_tree_no_radix()
Miao Xie [Wed, 15 May 2013 07:48:18 +0000 (07:48 +0000)]
Btrfs: remove BUG_ON() in btrfs_read_fs_tree_no_radix()

We have checked if ->node is NULL or not, so it is unnecessary to
use BUG_ON() to check again. Remove it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: pause the space balance when remounting to R/O
Miao Xie [Wed, 15 May 2013 07:48:17 +0000 (07:48 +0000)]
Btrfs: pause the space balance when remounting to R/O

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix unprotected root node of the subvolume's inode rb-tree
Miao Xie [Wed, 15 May 2013 07:48:16 +0000 (07:48 +0000)]
Btrfs: fix unprotected root node of the subvolume's inode rb-tree

The root node of the rb-tree may be changed, so we should get it under
the lock. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix accessing a freed tree root
Miao Xie [Wed, 15 May 2013 07:48:15 +0000 (07:48 +0000)]
Btrfs: fix accessing a freed tree root

inode_tree_del() will move the tree root into the dead root list, and
then the tree will be destroyed by the cleaner. So if we remove the
delayed node which is cached in the inode after inode_tree_del(),
we may access a freed tree root. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: return errno if possible when we fail to allocate memory
Liu Bo [Tue, 14 May 2013 02:12:15 +0000 (02:12 +0000)]
Btrfs: return errno if possible when we fail to allocate memory

We need to set return value explicitly, otherwise we'll lose the error
value.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: update the global reserve if it is empty
Miao Xie [Mon, 13 May 2013 13:55:12 +0000 (13:55 +0000)]
Btrfs: update the global reserve if it is empty

Before applying this patch, we reserved the space for the global reserve
by the minimum unit if we found it is empty, it was unreasonable and
inefficient, because if the global reserve space was depleted, it implied
that the size of the global reserve was too small. In this case, we shoud
update the global reserve and fill it.

Cc: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't steal the reserved space from the global reserve if their space type...
Miao Xie [Mon, 13 May 2013 13:55:11 +0000 (13:55 +0000)]
Btrfs: don't steal the reserved space from the global reserve if their space type is different

If the type of the space we need is different with the global reserve, we
can not steal the space from the global reserve, because we can not allocate
the space from the free space cache that the global reserve points to.

Cc: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: optimize the error handle of use_block_rsv()
Miao Xie [Mon, 13 May 2013 13:55:10 +0000 (13:55 +0000)]
Btrfs: optimize the error handle of use_block_rsv()

cc: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't use global block reservation for inode cache truncation
Miao Xie [Mon, 13 May 2013 13:55:09 +0000 (13:55 +0000)]
Btrfs: don't use global block reservation for inode cache truncation

It is very likely that there are lots of subvolumes/snapshots in the filesystem,
so if we use global block reservation to do inode cache truncation, we may hog
all the free space that is reserved in global rsv. So it is better that we do
the free space reservation for inode cache truncation by ourselves.

Cc: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't abort the current transaction if there is no enough space for inode...
Miao Xie [Mon, 13 May 2013 13:55:08 +0000 (13:55 +0000)]
Btrfs: don't abort the current transaction if there is no enough space for inode cache

The filesystem with inode cache was forced to be read-only when we umounted it.

Steps to reproduce:
 # mkfs.btrfs -f ${DEV}
 # mount -o inode_cache ${DEV} ${MNT}
 # dd if=/dev/zero of=${MNT}/file1 bs=1M count=8192
 # btrfs fi syn ${MNT}
 # dd if=${MNT}/file1 of=/dev/null bs=1M
 # rm -f ${MNT}/file1
 # btrfs fi syn ${MNT}
 # umount ${MNT}

It is because there was no enough space to do inode cache truncation, and then
we aborted the current transaction.

But no space error is not a serious problem when we write out the inode cache,
and it is safe that we just skip this step if we meet this problem. So we need
not abort the current transaction.

Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Tested-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoCorrect allowed raid levels on balance.
Andreas Philipp [Sat, 11 May 2013 11:13:03 +0000 (11:13 +0000)]
Correct allowed raid levels on balance.

Raid5 with 3 devices is well defined while the old logic allowed
raid5 only with a minimum of 4 devices when converting the block group
profile via btrfs balance. Creating a raid5 with just three devices
using mkfs.btrfs worked always as expected. This is now fixed and the
whole logic is rewritten.

Signed-off-by: Andreas Philipp <philipp.andreas@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix possible memory leak in replace_path()
Stefan Behrens [Wed, 8 May 2013 08:56:09 +0000 (08:56 +0000)]
Btrfs: fix possible memory leak in replace_path()

In replace_path(), if read_tree_block() fails, we cannot return
directly, we should free some allocated memory otherwise memory
leak happens.

Similar to Wang's "Btrfs: fix possible memory leak in the
find_parent_nodes()" patch, the current commit fixes an issue that
is related to the "Btrfs: fix all callers of read_tree_block"
commit.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: fix possible memory leak in the find_parent_nodes()
Wang Shilong [Wed, 8 May 2013 08:10:25 +0000 (08:10 +0000)]
Btrfs: fix possible memory leak in the find_parent_nodes()

In the find_parent_nodes(), if read_tree_block() fails, we can
not return directly, we should free some allocated memory otherwise
memory leak happens.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: don't allow device replace on RAID5/RAID6
Stefan Behrens [Tue, 7 May 2013 17:28:03 +0000 (17:28 +0000)]
Btrfs: don't allow device replace on RAID5/RAID6

This is not yet supported and causes crashes. One sad user reported
that it destroyed his filesystem.

One failure is in __btrfs_map_block+0xc1f calling kmalloc(0).

0x5f21f is in __btrfs_map_block (fs/btrfs/volumes.c:4923).
4918                            num_stripes = map->num_stripes;
4919                            max_errors = nr_parity_stripes(map);
4920
4921                            raid_map = kmalloc(sizeof(u64) * num_stripes,
4922                                               GFP_NOFS);
4923                            if (!raid_map) {
4924                                    ret = -ENOMEM;
4925                                    goto out;
4926                            }
4927

There might be more issues. Until this is really tested, don't allow
users to start the procedure on RAID5/RAID6 filesystems.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
11 years agoBtrfs: handle running extent ops with skinny metadata
Josef Bacik [Thu, 9 May 2013 17:49:30 +0000 (13:49 -0400)]
Btrfs: handle running extent ops with skinny metadata

Chris hit a bug where we weren't finding extent records when running extent ops.
This is because we use the delayed_ref_head when running the extent op, which
means we can't use the ->type checks to see if we are metadata.  We also lose
the level of the metadata we are working on.  So to fix this we can just check
the ->is_data section of the extent_op, and we can store the level of the buffer
we were modifying in the extent_op.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>