Philipp Zabel [Wed, 27 Mar 2013 17:30:36 +0000 (18:30 +0100)]
ARM i.MX5: Move IPU clock lookups into device tree
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Gwenhael Goavec-Merou [Wed, 27 Mar 2013 13:41:58 +0000 (14:41 +0100)]
ARM: imx: Add support for the Armadeus Systems APF27Dev docking board
The APF27Dev is a docking board for an APF27 SOM
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Gwenhael Goavec-Merou [Sat, 16 Mar 2013 15:53:54 +0000 (16:53 +0100)]
ARM: imx: apf51dev: add ecspi1, ecspi2 and i2c2 support
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sascha Hauer [Thu, 14 Mar 2013 12:09:02 +0000 (13:09 +0100)]
ARM: i.MX27: Add clocks to GPT devicetree nodes
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sascha Hauer [Thu, 14 Mar 2013 12:09:01 +0000 (13:09 +0100)]
ARM: i.MX6: Add clocks to GPT devicetree node
The i.MX6 already has a devicetree node for the GPT, but not yet
has the clocks. Add them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sascha Hauer [Thu, 14 Mar 2013 12:09:00 +0000 (13:09 +0100)]
ARM: i.MX53: Add GPT devicetree node
The GPT is the GPT timer found on i.MX SoCs. This patch adds the
devicetree node for it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sascha Hauer [Thu, 14 Mar 2013 12:08:59 +0000 (13:08 +0100)]
ARM: i.MX51: Add GPT devicetree node
The GPT is the GPT timer found on i.MX SoCs. This patch adds the
devicetree node for it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sascha Hauer [Thu, 14 Mar 2013 12:08:58 +0000 (13:08 +0100)]
ARM: i.MX31: Add GPT devicetree node
The GPT is the GPT timer found on i.MX SoCs.
Since this is the first user of the AIPS2 this patch also adds it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sascha Hauer [Thu, 14 Mar 2013 12:08:57 +0000 (13:08 +0100)]
ARM: i.MX27: Add GPT devicetree nodes
The GPT is the GPT timer found on i.MX SoCs.
This adds the missing GPT devicetree nodes. Also fixup the watchdog
register map size along the way. it's 0x1000, not 0x4000. This didn't
hurt before as the region was not occupied by another device, but now
overlaps with the GPT.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sascha Hauer [Thu, 14 Mar 2013 12:08:56 +0000 (13:08 +0100)]
ARM: i.MX: Add GPT devicetree Documentation
The GPT binding is already used on i.MX6 and i.MX25, but not yet
documented. Add a binding document for it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Fabio Estevam [Wed, 28 Nov 2012 17:55:30 +0000 (15:55 -0200)]
ARM: mx27: Replace clk_register_clkdev with clock DT lookup
Similarly as it was done for mx6q, use a DT lookup in order to make maintainance
task for the clock devices easier.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Gwenhael Goavec-Merou [Sat, 9 Mar 2013 14:04:19 +0000 (15:04 +0100)]
ARM: imx51: Add a second pinctrl group for i2c2
Add a second pinctrl group of pins for i2c2.
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Gwenhael Goavec-Merou [Sat, 9 Mar 2013 13:59:08 +0000 (14:59 +0100)]
ARM: imx51: Add pinctrl for ecspi2
Add ecspi2 group of pins for imx51.
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Gwenhael Goavec-Merou [Fri, 8 Mar 2013 07:41:38 +0000 (08:41 +0100)]
ARM: imx: Add support for the Armadeus Systems APF51Dev docking board
The APF51Dev is a docking board for an APF51 SOM
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sean Cross [Thu, 7 Mar 2013 06:00:10 +0000 (06:00 +0000)]
ARM: dts: imx6q: Add pinctrl for audmix on AUD3
Allow AUD3 to be used as audio output from the audmux block.
Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sean Cross [Thu, 7 Mar 2013 06:00:09 +0000 (06:00 +0000)]
ARM: dts: imx6q: Add pinctrl for i2c2 and i2c3
Add groups to allow i2c2 and i2c3 to be used on imx6q.
Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sean Cross [Thu, 7 Mar 2013 06:00:08 +0000 (06:00 +0000)]
ARM: dts: imx6q: Add pinctrl for ecspi3
Add a group of pins to allow ecspi3 to be used on imx6q.
Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Shawn Guo [Wed, 20 Feb 2013 02:32:52 +0000 (10:32 +0800)]
pinctrl: imx: move hard-coding data into device tree
Currently, all imx pinctrl drivers maintain a big array of struct
imx_pin_reg which hard-codes data like register offset and mux mode
setting for each pin function. Every time a new imx SoC support is
added, we need to add such a big mount of data. With moving to single
kernel build, it's only matter of time to be blamed on memory consuming.
With DTC pre-processor support in place, the patch moves all these data
into device tree by redefining the PIN_FUNC_ID in imxXX-pinfunc.h and
changing the PIN_FUNC_ID parsing code a little bit.
The pin id gets re-numbered based on mux register offset, or config
register offset if the pin has no mux register, so that kernel can
identify the pin id from register offsets provided by device tree.
As a bonus point of the change, those arbitrary magic numbers standing
for particular PIN_FUNC_ID in device tree sources are now replaced by
macros to improve the readability of dts files.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Shawn Guo [Sun, 7 Apr 2013 02:49:34 +0000 (10:49 +0800)]
ARM: imx: use #include for all device trees
Replace /include/ (dtc) with #include (C pre-processor) for all imx DT
files, so that gcc -E handles the entire include tree, and hence any of
those files can #include some other file e.g. for constant definitions.
This allows future use of #defines and header files in order to define
names for various constants, such as pinctrl settings. Use of those
features will increase the readability of the device tree files.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Peter Chen [Mon, 18 Feb 2013 02:06:44 +0000 (10:06 +0800)]
ARM: dts: imx6q-sabresd: Add USB support
Add USB support for imx6q sabresd board
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Dirk Behme [Fri, 15 Feb 2013 14:10:01 +0000 (15:10 +0100)]
ARM: dts: imx6q: add PMU
Add ARM Cortex A9 Performance Monitor Unit (PMU) support.
On i.MX6 a combined interrupt on hardware line #126 is used
(i.MX6 TRM: Performance Unit interrupt).
For more details see Documentation/devicetree/bindings/arm/pmu.txt
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Shawn Guo [Tue, 9 Apr 2013 14:52:42 +0000 (22:52 +0800)]
Merge remote-tracking branch 'swarren/for-3.10/dtc-cpp-chroot-std-headers' into imx/dt
Shawn Guo [Tue, 9 Apr 2013 14:52:11 +0000 (22:52 +0800)]
Merge tag 'imx-cleanup-3.10' into imx/dt
The imx cleanup for 3.10:
* Clean up a couple of unneeded function declarations
* Remove imx specific cpufreq driver as generic cpufreq-cpu0 works well
as the replacement
* Remove platform ahci support
* Clean up unused ARCH/MACH Kconfig symbols
* Remove a couple of unused files
Paul Bolle [Tue, 9 Apr 2013 06:58:23 +0000 (08:58 +0200)]
ARM: i.MX: remove unused ARCH_* configs
This removes the unused Kconfig options ARCH_MX5, ARCH_MX51,
ARCH_MX53 and MACH_MX21.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Sascha Hauer [Tue, 9 Apr 2013 06:58:22 +0000 (08:58 +0200)]
ARM i.MX53: remove platform ahci support
The i.MX53 ahci platform support is unused in mainline. To demotivate
people using it just remove it from the tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Stephen Warren [Wed, 13 Feb 2013 19:50:48 +0000 (12:50 -0700)]
ARM: dt: create a DT header for the GIC
The ARM GIC binding defines a few custom cells and flags for its IRQ
specifier. Provide names for those.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Stephen Warren [Wed, 13 Feb 2013 19:50:11 +0000 (12:50 -0700)]
ARM: dt: add header to define IRQ flags
Many IRQ device tree bindings use the same flags. Create a header to
define those.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Stephen Warren [Wed, 13 Feb 2013 00:22:36 +0000 (17:22 -0700)]
ARM: dt: add header to define GPIO flags
Many GPIO device tree bindings use the same flags. Create a header to
define those.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Stephen Warren [Wed, 6 Mar 2013 17:58:37 +0000 (10:58 -0700)]
kbuild: always run gcc -E on *.dts, remove cmd_dtc_cpp
Replace cmd_dtc with cmd_dtc_cpp, and delete the latter.
Previously, a special file extension (.dtsp) was required to trigger
the C pre-processor to run on device tree files. This was ugly. Now that
previous changes have enhanced cmd_dtc_cpp to collect dependency
information from both gcc -E and dtc, we can transparently run the pre-
processor on all device tree files, irrespective of whether they
use /include/ or #include syntax to include *.dtsi.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Stephen Warren [Wed, 6 Mar 2013 17:28:02 +0000 (10:28 -0700)]
kbuild: cmd_dtc_cpp: extract deps from both gcc -E and dtc
Prior to this change, when compiling *.dts to *.dtb, the dependency
output from dtc would be used, and when compiling *.dtsp to *.dtb, the
dependency output from gcc -E alone would be used, despite dtc also
being invoked (on a temporary file that was guaranteed to have no
dependencies).
With this change, when compiling *.dtsp to *.dtb, the dependency files
from both gcc -E and dtc are used. This will allow cmd_dtc_cpp to
replace cmd_dtc in a future change. In turn, that will allow the C pre-
processor to be run transparently on *.dts, without the need to a
separate rule or file extension to trigger it.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Stephen Warren [Wed, 6 Mar 2013 17:27:45 +0000 (10:27 -0700)]
kbuild: fixdep: support concatenated dep files
The current use-case for fixdep is: a source file is run through a single
processing step, which creates a single dependency file as a side-effect,
which fixdep transforms into the file used by the kernel build process.
In order to transparently run the C pre-processor on device-tree files,
we wish to run both gcc -E and dtc on a source file in a single rule.
This generates two dependency files, which must be transformed together
into the file used by the kernel build process. This change modifies
fixdep so it can process the concatenation of multiple separate input
dependency files, and produce a correct unified output.
The code changes have the slight benefit of transforming the loop in
parse_dep_file() into more of a lexer/tokenizer, with the loop body being
more of a parser. Previously, some of this logic was mixed together
before the loop. I also added some comments, which I hope are useful.
Benchmarking shows that on a cross-compiled ARM tegra_defconfig build,
there is less than 0.5 seconds speed decrease with this change, on top
of a build time of ~2m24s. This is probably within the noise.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Stephen Warren [Wed, 20 Feb 2013 20:39:41 +0000 (13:39 -0700)]
kbuild: create an "include chroot" for DT bindings
The recent dtc+cpp support allows header files and C pre-processor
defines/macros to be used when compiling device tree files. These
headers will typically define various constants that are part of the
device tree bindings.
The original patch which set up the dtc+cpp include path only considered
using those headers from device tree files. However, most are also
useful for kernel code which needs to interpret the device tree.
In both the DT files and the kernel, I'd like to include the DT-related
headers in the same way, for example, <dt-bindings/gpio/tegra-gpio.h>.
That will simplify any text which discusses the DT header locations.
Creating a <dt-bindings/> for kernel source to use is as simple as
placing files into include/dt-bindings/.
However, when compiling DT files, the include path should be restricted
so that only the dt-bindings path is available; arbitrary kernel headers
shouldn't be exposed. For this reason, create a specific include
directory for use by dtc+cpp, and symlink dt-bindings from there to the
actual location of include/dt-bindings/. For want of a better location,
place this "include chroot" into the existing dts/ directory.
arch/*/boot/dts/include/dt-bindings -> ../../../../../include/dt-bindings
Some headers used by device tree files may not be useful to the kernel;
they may be used simply to aid in constructing the DT file (e.g. macros
to create a node), but not define any information that the kernel needs
to share. These may be placed directly into arch/*/boot/dts/ along with
the DT files themselves.
Acked-by: Michal Marek <mmarek@suse.cz>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Shawn Guo [Tue, 2 Apr 2013 14:06:01 +0000 (22:06 +0800)]
ARM: imx: remove mx6q.h
Those stuff defined in mx6q.h is used nowhere now. Remove the header.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Shawn Guo [Tue, 2 Apr 2013 13:51:27 +0000 (21:51 +0800)]
ARM: imx: remove Makefile.boot
Since we have converted IMX to multiplatform build, Makefile.boot is not
used anyway. Remove it.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Fabio Estevam [Tue, 29 Jan 2013 12:17:35 +0000 (10:17 -0200)]
ARM: imx: clk-imx27: Do not register peripheral clock for SSI
imx ssi block has two types of clocks:
- ipg: bus clock, the clock needed for accessing registers.
- per: peripheral clock, the clock needed for generating the bit rate.
Currently ssi driver only supports slave mode and thus need only to handle
the ipg clock, because the peripheral clock comes from the master codec.
Only register the ipg clock and do not register the peripheral clock for ssi
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Fabio Estevam [Tue, 5 Feb 2013 17:36:16 +0000 (15:36 -0200)]
ARM: imx: avic: Move avic_saved_mask_reg under CONFIG_PM
When building a kernel with CONFIG_PM undefined, the following warning happens:
arch/arm/mach-imx/avic.c:57:12: warning: 'avic_saved_mask_reg' defined but not used [-Wunused-variable]
Move avic_saved_mask_reg definition inside the '#ifdef CONFIG_PM' block to
avoid the warning.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Markus Pargmann [Wed, 27 Mar 2013 13:01:34 +0000 (14:01 +0100)]
ARM: imx: Remove cpufreq driver
The old cpufreq driver is not necessary anymore with DT and
cpufreq-cpu0.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Shawn Guo [Wed, 13 Mar 2013 05:29:35 +0000 (13:29 +0800)]
ARM: imx: remove pl310_get_save_ptr() declaration
Commit a1f1c7e (arm/imx6q: add suspend/resume support) added
declaration for a non-existing function pl310_get_save_ptr() by
mistake. Remove it.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Shawn Guo [Wed, 13 Mar 2013 05:25:43 +0000 (13:25 +0800)]
ARM: imx: remove duplicated function declaration
Commit 13eed98 (arm/imx6q: add device tree machine support) added
duplicated function declaration for imx_enable_cpu() and
imx_set_cpu_jump(). Remove them.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Linus Torvalds [Sun, 31 Mar 2013 22:12:43 +0000 (15:12 -0700)]
Linux 3.9-rc5
Linus Torvalds [Sun, 31 Mar 2013 18:41:47 +0000 (11:41 -0700)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes from Vinod Koul:
"Two fixes for slave-dmaengine.
The first one is for making slave_id value correct for dw_dmac and
the other one fixes the endieness in DT parsing"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dw_dmac: adjust slave_id accordingly to request line base
dmaengine: dw_dma: fix endianess for DT xlate function
Linus Torvalds [Sun, 31 Mar 2013 18:40:33 +0000 (11:40 -0700)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"For a some fixes for Kernel 3.9:
- subsystem build fix when VIDEO_DEV=y, VIDEO_V4L2=m and I2C=m
- compilation fix for arm multiarch preventing IR_RX51 to be selected
- regression fix at bttv crop logic
- s5p-mfc/m5mols/exynos: a few fixes for cameras on exynos hardware"
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] [REGRESSION] bt8xx: Fix too large height in cropcap
[media] fix compilation with both V4L2 and I2C as 'm'
[media] m5mols: Fix bug in stream on handler
[media] s5p-fimc: Do not attempt to disable not enabled media pipeline
[media] s5p-mfc: Fix encoder control 15 issue
[media] s5p-mfc: Fix frame skip bug
[media] s5p-fimc: send valid m2m ctx to fimc_m2m_job_finish
[media] exynos-gsc: send valid m2m ctx to gsc_m2m_job_finish
[media] fimc-lite: Fix the variable type to avoid possible crash
[media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure
[media] ir: IR_RX51 only works on OMAP2
Linus Torvalds [Sun, 31 Mar 2013 18:38:59 +0000 (11:38 -0700)]
Merge tag 'for-linus-
20130331' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Alright, this time from 10K up in the air.
Collection of fixes that have been queued up since the merge window
opened, hence postponed until later in the cycle. The pull request
contains:
- A bunch of fixes for the xen blk front/back driver.
- A round of fixes for the new IBM RamSan driver, fixing various
nasty issues.
- Fixes for multiple drives from Wei Yongjun, bad handling of return
values and wrong pointer math.
- A fix for loop properly killing partitions when being detached."
* tag 'for-linus-
20130331' of git://git.kernel.dk/linux-block: (25 commits)
mg_disk: fix error return code in mg_probe()
rsxx: remove unused variable
rsxx: enable error return of rsxx_eeh_save_issued_dmas()
block: removes dynamic allocation on stack
Block: blk-flush: Fixed indent code style
cciss: fix invalid use of sizeof in cciss_find_cfgtables()
loop: cleanup partitions when detaching loop device
loop: fix error return code in loop_add()
mtip32xx: fix error return code in mtip_pci_probe()
xen-blkfront: remove frame list from blk_shadow
xen-blkfront: pre-allocate pages for requests
xen-blkback: don't store dev_bus_addr
xen-blkfront: switch from llist to list
xen-blkback: fix foreach_grant_safe to handle empty lists
xen-blkfront: replace kmalloc and then memcpy with kmemdup
xen-blkback: fix dispatch_rw_block_io() error path
rsxx: fix missing unlock on error return in rsxx_eeh_remap_dmas()
Adding in EEH support to the IBM FlashSystem 70/80 device driver
block: IBM RamSan 70/80 error message bug fix.
block: IBM RamSan 70/80 branding changes.
...
Paul Walmsley [Sun, 31 Mar 2013 00:04:40 +0000 (00:04 +0000)]
Revert "lockdep: check that no locks held at freeze time"
This reverts commit
6aa9707099c4b25700940eb3d016f16c4434360d.
Commit
6aa9707099c4 ("lockdep: check that no locks held at freeze time")
causes problems with NFS root filesystems. The failures were noticed on
OMAP2 and 3 boards during kernel init:
[ BUG: swapper/0/1 still has locks held! ]
3.9.0-rc3-00344-ga937536 #1 Not tainted
-------------------------------------
1 lock held by swapper/0/1:
#0: (&type->s_umount_key#13/1){+.+.+.}, at: [<
c011e84c>] sget+0x248/0x574
stack backtrace:
rpc_wait_bit_killable
__wait_on_bit
out_of_line_wait_on_bit
__rpc_execute
rpc_run_task
rpc_call_sync
nfs_proc_get_root
nfs_get_root
nfs_fs_mount_common
nfs_try_mount
nfs_fs_mount
mount_fs
vfs_kern_mount
do_mount
sys_mount
do_mount_root
mount_root
prepare_namespace
kernel_init_freeable
kernel_init
Although the rootfs mounts, the system is unstable. Here's a transcript
from a PM test:
http://www.pwsan.com/omap/testlogs/test_v3.9-rc3/
20130317194234/pm/37xxevm/37xxevm_log.txt
Here's what the test log should look like:
http://www.pwsan.com/omap/testlogs/test_v3.8/
20130218214403/pm/37xxevm/37xxevm_log.txt
Mailing list discussion is here:
http://lkml.org/lkml/2013/3/4/221
Deal with this for v3.9 by reverting the problem commit, until folks can
figure out the right long-term course of action.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Mandeep Singh Baines <msb@chromium.org>
Cc: Jeff Layton <jlayton@redhat.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: <maciej.rutecki@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ben Chan <benchan@chromium.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 30 Mar 2013 20:13:05 +0000 (13:13 -0700)]
Merge git://git./linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
"This includes the bug-fix for a >= v3.8-rc1 regression specific to
iscsi-target persistent reservation conflict handling (CC'ed to
stable), and a tcm_vhost patch to drop VIRTIO_RING_F_EVENT_IDX usage
so that in-flight qemu vhost-scsi-pci device code can detect the
proper vhost feature bits.
Also, there are two more tcm_vhost patches still being discussed by
MST and Asias for v3.9 that will be required for the in-flight qemu
vhost-scsi-pci device patch to function properly, and that should
(hopefully) be the last target fixes for this round."
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target: Fix RESERVATION_CONFLICT status regression for iscsi-target special case
tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit
Andy Shevchenko [Wed, 20 Feb 2013 11:52:17 +0000 (13:52 +0200)]
dw_dmac: adjust slave_id accordingly to request line base
On some hardware configurations we have got the request line with the offset.
The patch introduces convert_slave_id() helper for that cases. The request line
base is came from the driver data provided by the platform_device_id table.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Arnd Bergmann [Sun, 3 Mar 2013 20:51:28 +0000 (20:51 +0000)]
dmaengine: dw_dma: fix endianess for DT xlate function
As reported by Wu Fengguang's build robot tracking sparse warnings, the
dma_spec arguments in the dw_dma_xlate are already byte swapped on
little-endian platforms and must not get swapped again. This code is
currently not used anywhere, but will be used in Linux 3.10 when the
ARM SPEAr platform starts using the generic DMA DT binding.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Rafael J. Wysocki [Fri, 29 Mar 2013 21:59:53 +0000 (22:59 +0100)]
PNP: List Rafael Wysocki as a maintainer
The Adam Belay's e-mail address in MAINTAINERS under PNP SUPPORT
is not valid any more and I started to maintain that code in the
meantime as a matter of fact, so list myself as a maintainer of it
along with Bjorn and remove the Adam's entry from it.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 29 Mar 2013 18:47:43 +0000 (11:47 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
Pull ceph fix from Sage Weil:
"This fixes a regression introduced during the last merge window when
mapping non-existent images."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: don't zero-fill non-image object requests
Alex Elder [Wed, 27 Mar 2013 14:16:30 +0000 (09:16 -0500)]
rbd: don't zero-fill non-image object requests
A result of ENOENT from a read request for an object that's part of
an rbd image indicates that there is a hole in that portion of the
image. Similarly, a short read for such an object indicates that
the remainder of the read should be interpreted a full read with
zeros filling out the end of the request.
This behavior is not correct for objects that are not backing rbd
image data. Currently rbd_img_obj_request_callback() assumes it
should be done for all objects.
Change rbd_img_obj_request_callback() so it only does this zeroing
for image objects. Encapsulate that special handling in its own
function. Add an assertion that the image object request is a bio
request, since we assume that (and we currently don't support any
other types).
This resolves a problem identified here:
http://tracker.ceph.com/issues/4559
The regression was introduced by
bf0d5f503dc11d6314c0503591d258d60ee9c944.
Reported-by: Dan van der Ster <dan@vanderster.com>
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-off-by: Sage Weil <sage@inktank.com>
Linus Torvalds [Fri, 29 Mar 2013 18:13:25 +0000 (11:13 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"We've had a busy two weeks of bug fixing. The biggest patches in here
are some long standing early-enospc problems (Josef) and a very old
race where compression and mmap combine forces to lose writes (me).
I'm fairly sure the mmap bug goes all the way back to the introduction
of the compression code, which is proof that fsx doesn't trigger every
possible mmap corner after all.
I'm sure you'll notice one of these is from this morning, it's a small
and isolated use-after-free fix in our scrub error reporting. I
double checked it here."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: don't drop path when printing out tree errors in scrub
Btrfs: fix wrong return value of btrfs_lookup_csum()
Btrfs: fix wrong reservation of csums
Btrfs: fix double free in the btrfs_qgroup_account_ref()
Btrfs: limit the global reserve to 512mb
Btrfs: hold the ordered operations mutex when waiting on ordered extents
Btrfs: fix space accounting for unlink and rename
Btrfs: fix space leak when we fail to reserve metadata space
Btrfs: fix EIO from btrfs send in is_extent_unchanged for punched holes
Btrfs: fix race between mmap writes and compression
Btrfs: fix memory leak in btrfs_create_tree()
Btrfs: fix locking on ROOT_REPLACE operations in tree mod log
Btrfs: fix missing qgroup reservation before fallocating
Btrfs: handle a bogus chunk tree nicely
Btrfs: update to use fs_state bit
Len Brown [Fri, 29 Mar 2013 18:02:30 +0000 (11:02 -0700)]
ia64 idle: delete stale (*idle)() function pointer
Commit
3e7fc708eb41 ("ia64 idle: delete pm_idle") in 3.9-rc1 didn't
finish the job, leaving an un-initialized reference to (*idle)().
[ Haven't seen a crash from this - but seems like we are just being
lucky that "idle" is zero so it does get initialized before we jump to
randomland - Len ]
Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 29 Mar 2013 18:00:43 +0000 (11:00 -0700)]
Merge branch 'for-curr' of git://git./linux/kernel/git/vgupta/arc
Pull arc architecture fixes from Vineet Gupta:
"This includes fix for a serious bug in DMA mapping API, make
allyesconfig wreckage, removal of bogus email-list placeholder in
MAINTAINERS, a typo in ptrace helper code and last remaining changes
for syscall ABI v3 which we are finally starting to transition-to
internally.
The request is late than I intended to - but I was held up with
debugging a timer link list corruption, for which a proposed fix to
generic timer code was sent out to lkml/tglx earlier today."
* 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: Fix the typo in event identifier flags used by ptrace
arc: fix dma_address assignment during dma_map_sg()
ARC: Remove SET_PERSONALITY (tracks cross-arch change)
ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI
ARC: ABIv3: Print the correct ABI ver
ARC: make allyesconfig build breakages
ARC: MAINTAINERS update for ARC
Josef Bacik [Fri, 29 Mar 2013 14:09:34 +0000 (08:09 -0600)]
Btrfs: don't drop path when printing out tree errors in scrub
A user reported a panic where we were panicing somewhere in
tree_backref_for_extent from scrub_print_warning. He only captured the trace
but looking at scrub_print_warning we drop the path right before we mess with
the extent buffer to print out a bunch of stuff, which isn't right. So fix this
by dropping the path after we use the eb if we need to. Thanks,
Cc: stable@vger.kernel.org
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Nicholas Bellinger [Fri, 29 Mar 2013 06:06:00 +0000 (23:06 -0700)]
target: Fix RESERVATION_CONFLICT status regression for iscsi-target special case
This patch fixes a regression introduced in v3.8-rc1 code where a failed
target_check_reservation() check in target_setup_cmd_from_cdb() was causing
an incorrect SAM_STAT_GOOD status to be returned during a WRITE operation
performed by an unregistered / unreserved iscsi initiator port.
This regression is only effecting iscsi-target due to a special case check
for TCM_RESERVATION_CONFLICT within iscsi_target_erl1.c:iscsit_execute_cmd(),
and was still correctly disallowing WRITE commands from backend submission
for unregistered / unreserved initiator ports, while returning the incorrect
SAM_STAT_GOOD status due to the missing SAM_STAT_RESERVATION_CONFLICT
assignment.
This regression was first introduced with:
commit
de103c93aff0bed0ae984274e5dc8b95899badab
Author: Christoph Hellwig <hch@lst.de>
Date: Tue Nov 6 12:24:09 2012 -0800
target: pass sense_reason as a return value
Go ahead and re-add the missing SAM_STAT_RESERVATION_CONFLICT assignment
during a target_check_reservation() failure, so that iscsi-target code
sends the correct SCSI status.
All other fabrics using target_submit_cmd_*() with a RESERVATION_CONFLICT
call to transport_generic_request_failure() are not effected by this bug.
Reported-by: Jeff Leung <jleung@curriegrad2004.ca>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Nicholas Bellinger [Thu, 28 Mar 2013 00:23:41 +0000 (17:23 -0700)]
tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit
This patch adds a VHOST_SCSI_FEATURES mask minus VIRTIO_RING_F_EVENT_IDX
so that vhost-scsi-pci userspace will strip this feature bit once
GET_FEATURES reports it as being unsupported on the host.
This is to avoid a bug where ->handle_kicks() are missed when EVENT_IDX
is enabled by default in userspace code.
(mst: Rename to VHOST_SCSI_FEATURES + add comment)
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Asias He <asias@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Michel Lespinasse [Thu, 28 Mar 2013 23:26:23 +0000 (16:26 -0700)]
Revert "mm: introduce VM_POPULATE flag to better deal with racy userspace programs"
This reverts commit
186930500985 ("mm: introduce VM_POPULATE flag to
better deal with racy userspace programs").
VM_POPULATE only has any effect when userspace plays racy games with
vmas by trying to unmap and remap memory regions that mmap or mlock are
operating on.
Also, the only effect of VM_POPULATE when userspace plays such games is
that it avoids populating new memory regions that get remapped into the
address range that was being operated on by the original mmap or mlock
calls.
Let's remove VM_POPULATE as there isn't any strong argument to mandate a
new vm_flag.
Signed-off-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 28 Mar 2013 22:54:25 +0000 (15:54 -0700)]
Merge tag 'usb-3.9-rc4' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are some USB fixes to resolve issues reported recently, as well
as a new device id for the ftdi_sio driver."
* tag 'usb-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: ftdi_sio: Add support for Mitsubishi FX-USB-AW/-BD
usb: Fix compile error by selecting USB_OTG_UTILS
USB: serial: fix hang when opening port
USB: EHCI: fix bug in iTD/siTD DMA pool allocation
xhci: Don't warn on empty ring for suspended devices.
usb: xhci: Fix TRB transfer length macro used for Event TRB.
usb/acpi: binding xhci root hub usb port with ACPI
usb: add find_raw_port_number callback to struct hc_driver()
usb: xhci: fix build warning
Linus Torvalds [Thu, 28 Mar 2013 22:53:33 +0000 (15:53 -0700)]
Merge tag 'tty-3.9-rc4' of git://git./linux/kernel/git/gregkh/tty
Pull TTY/serial fixes from Greg Kroah-Hartman:
"Here are some tty/serial driver fixes for 3.9.
The big thing here is the fix for the huge mess we caused renaming the
8250 driver accidentally in the 3.7 kernel release, without realizing
that there were users of the module options that suddenly broke. This
is now resolved, and, to top the injury off, we have a backwards-
compatible option for those users who got used to the new name since
3.7. Ugh, sorry about that.
Other than that, some other minor fixes for issues that have been
reported by users."
* tag 'tty-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Xilinx: ARM: UART: clear pending irqs before enabling irqs
TTY: 8250, deprecated 8250_core.* options
TTY: 8250, revert module name change
serial: 8250_pci: Add WCH CH352 quirk to avoid Xscale detection
tty: atmel_serial_probe(): index of atmel_ports[] fix
Linus Torvalds [Thu, 28 Mar 2013 22:52:54 +0000 (15:52 -0700)]
Merge tag 'staging-3.9-rc4' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg Kroah-Hartman:
"Here are two tiny staging driver fixes to resolve issues that have
been reported."
* tag 'staging-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: comedi: s626: fix continuous acquisition
staging: zcache: fix typo "64_BIT"
Linus Torvalds [Thu, 28 Mar 2013 22:52:14 +0000 (15:52 -0700)]
Merge tag 'driver-core-3.9-rc4' of git://git./linux/kernel/git/gregkh/driver-core
Pull sysfs fixes from Greg Kroah-Hartman:
"Here are two fixes for sysfs that resolve issues that have been found
by the Trinity fuzz tool, causing oopses in sysfs. They both have
been in linux-next for a while to ensure that they do not cause any
other problems."
* tag 'driver-core-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
sysfs: handle failure path correctly for readdir()
sysfs: fix race between readdir and lseek
Linus Torvalds [Thu, 28 Mar 2013 22:51:33 +0000 (15:51 -0700)]
Merge tag 'char-misc-3.9-rc4' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg Kroah-Hartman:
"Here are some small char/misc driver fixes that resolve issues
recently reported against the 3.9-rc kernels. All have been in
linux-next for a while."
* tag 'char-misc-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
VMCI: Fix process-to-process DRGAMs.
mei: ME hardware reset needs to be synchronized
mei: add mei_stop function to stop mei device
extcon: max77693: Initialize register of MUIC device to bring up it without platform data
extcon: max77693: Fix bug of wrong pointer when platform data is not used
extcon: max8997: Check the pointer of platform data to protect null pointer error
Linus Torvalds [Thu, 28 Mar 2013 20:47:31 +0000 (13:47 -0700)]
Merge tag 'pm+acpi-3.9-rc5' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael J Wysocki:
- Fix for a recent cpufreq regression related to acpi-cpufreq and
suspend/resume from Viresh Kumar.
- cpufreq stats reference counting fix from Viresh Kumar.
- intel_pstate driver fixes from Dirk Brandewie and Konrad Rzeszutek
Wilk.
- New ACPI suspend blacklist entry for Sony Vaio VGN-FW21M from Fabio
Valentini.
- ACPI Platform Error Interface (APEI) fix from Chen Gong.
- PCI root bridge hotplug locking fix from Yinghai Lu.
* tag 'pm+acpi-3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PCI / ACPI: hold acpi_scan_lock during root bus hotplug
ACPI / APEI: fix error status check condition for CPER
ACPI / PM: fix suspend and resume on Sony Vaio VGN-FW21M
cpufreq: acpi-cpufreq: Don't set policy->related_cpus from .init()
cpufreq: stats: do cpufreq_cpu_put() corresponding to cpufreq_cpu_get()
intel-pstate: Use #defines instead of hard-coded values.
cpufreq / intel_pstate: Fix calculation of current frequency
cpufreq / intel_pstate: Add function to check that all MSRs are valid
Linus Torvalds [Thu, 28 Mar 2013 20:46:20 +0000 (13:46 -0700)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This removes IPsec ESN support from the talitos/caam drivers since
they were implemented incorrectly, causing interoperability problems
if ESN is used with them."
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
Revert "crypto: caam - add IPsec ESN support"
Revert "crypto: talitos - add IPsec ESN support"
Linus Torvalds [Thu, 28 Mar 2013 20:45:49 +0000 (13:45 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/cmarinas/linux-aarch64
Pull arm64 fix from Catalin Marinas:
"Fix IS_ENABLED() usage typo (missing CONFIG_ prefix)."
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
ARM64: early_printk: Fix check for CONFIG_ARM64_64K_PAGES
Linus Torvalds [Thu, 28 Mar 2013 20:44:40 +0000 (13:44 -0700)]
Merge tag 'fbdev-fixes-3.9-rc4' of git://gitorious.org/linux-omap-dss2/linux
Pull fbdev fixes from Tomi Valkeinen:
"Since Florian is still away/inactive, I volunteered to collect fbdev
fixes for 3.9 and changes for 3.10. I didn't receive any other fbdev
fixes than OMAP yet, but I didn't want to delay this further as
there's a compilation fix for OMAP1. So there could be still some
fbdev fixes on the way a bit later.
This contains:
- Fix OMAP1 compilation
- OMAP display fixes"
* tag 'fbdev-fixes-3.9-rc4' of git://gitorious.org/linux-omap-dss2/linux:
omapdss: features: fix supported outputs for OMAP4
OMAPDSS: tpo-td043 panel: fix data passing between SPI/DSS parts
omapfb: fix broken build on OMAP1
Linus Torvalds [Thu, 28 Mar 2013 20:43:46 +0000 (13:43 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ebiederm/user-namespace
Pull userns fixes from Eric W Biederman:
"The bulk of the changes are fixing the worst consequences of the user
namespace design oversight in not considering what happens when one
namespace starts off as a clone of another namespace, as happens with
the mount namespace.
The rest of the changes are just plain bug fixes.
Many thanks to Andy Lutomirski for pointing out many of these issues."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
userns: Restrict when proc and sysfs can be mounted
ipc: Restrict mounting the mqueue filesystem
vfs: Carefully propogate mounts across user namespaces
vfs: Add a mount flag to lock read only bind mounts
userns: Don't allow creation if the user is chrooted
yama: Better permission check for ptraceme
pid: Handle the exit of a multi-threaded init.
scm: Require CAP_SYS_ADMIN over the current pidns to spoof pids.
Konstantin Holoborodko [Thu, 28 Mar 2013 15:06:13 +0000 (00:06 +0900)]
usb: ftdi_sio: Add support for Mitsubishi FX-USB-AW/-BD
It enhances the driver for FTDI-based USB serial adapters
to recognize Mitsubishi Electric Corp. USB/RS422 Converters
as FT232BM chips and support them.
https://search.meau.com/?q=FX-USB-AW
Signed-off-by: Konstantin Holoborodko <klh.kernel@gmail.com>
Tested-by: Konstantin Holoborodko <klh.kernel@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wei Yongjun [Thu, 28 Mar 2013 15:43:43 +0000 (09:43 -0600)]
mg_disk: fix error return code in mg_probe()
Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Miao Xie [Thu, 28 Mar 2013 08:12:15 +0000 (08:12 +0000)]
Btrfs: fix wrong return value of btrfs_lookup_csum()
If we don't find the expected csum item, but find a csum item which is
adjacent to the specified extent, we should return -EFBIG, or we should
return -ENOENT. But btrfs_lookup_csum() return -EFBIG even the csum item
is not adjacent to the specified extent. Fix it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Miao Xie [Thu, 28 Mar 2013 08:08:20 +0000 (08:08 +0000)]
Btrfs: fix wrong reservation of csums
We reserve the space for csums only when we write data into a file, in
the other cases, such as tree log, log replay, we don't do reservation,
so we can use the reservation of the transaction handle just for the former.
And for the latter, we should use the tree's own reservation. But the
function - btrfs_csum_file_blocks() didn't differentiate between these
two types of the cases, fix it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Wang Shilong [Mon, 25 Mar 2013 11:08:23 +0000 (11:08 +0000)]
Btrfs: fix double free in the btrfs_qgroup_account_ref()
The function btrfs_find_all_roots is responsible to allocate
memory for 'roots' and free it if errors happen,so the caller should not
free it again since the work has been done.
Besides,'tmp' is allocated after the function btrfs_find_all_roots,
so we can return directly if btrfs_find_all_roots() fails.
Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Josef Bacik [Tue, 26 Mar 2013 19:31:45 +0000 (15:31 -0400)]
Btrfs: limit the global reserve to 512mb
A user reported a problem where he was getting early ENOSPC with hundreds of
gigs of free data space and 6 gigs of free metadata space. This is because the
global block reserve was taking up the entire free metadata space. This is
ridiculous, we have infrastructure in place to throttle if we start using too
much of the global reserve, so instead of letting it get this huge just limit it
to 512mb so that users can still get work done. This allowed the user to
complete his rsync without issues. Thanks
Cc: stable@vger.kernel.org
Reported-and-tested-by: Stefan Priebe <s.priebe@profihost.ag>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Josef Bacik [Tue, 26 Mar 2013 19:29:11 +0000 (15:29 -0400)]
Btrfs: hold the ordered operations mutex when waiting on ordered extents
We need to hold the ordered_operations mutex while waiting on ordered extents
since we splice and run the ordered extents list. We need to make sure anybody
else who wants to wait on ordered extents does actually wait for them to be
completed. This will keep us from bailing out of flushing in case somebody is
already waiting on ordered extents to complete. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Josef Bacik [Tue, 26 Mar 2013 19:26:55 +0000 (15:26 -0400)]
Btrfs: fix space accounting for unlink and rename
We are way over-reserving for unlink and rename. Rename is just some random
huge number and unlink accounts for tree log operations that don't actually
happen during unlink, not to mention the tree log doesn't take from the trans
block rsv anyway so it's completely useless. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Josef Bacik [Mon, 25 Mar 2013 20:03:35 +0000 (16:03 -0400)]
Btrfs: fix space leak when we fail to reserve metadata space
Dave reported a warning when running xfstest 275. We have been leaking delalloc
metadata space when our reservations fail. This is because we were improperly
calculating how much space to free for our checksum reservations. The problem
is we would sometimes free up space that had already been freed in another
thread and we would end up with negative usage for the delalloc space. This
patch fixes the problem by calculating how much space the other threads would
have already freed, and then calculate how much space we need to free had we not
done the reservation at all, and then freeing any excess space. This makes
xfstests 275 no longer have leaked space. Thanks
Cc: stable@vger.kernel.org
Reported-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Jan Schmidt [Thu, 21 Mar 2013 14:30:23 +0000 (14:30 +0000)]
Btrfs: fix EIO from btrfs send in is_extent_unchanged for punched holes
When you take a snapshot, punch a hole where there has been data, then take
another snapshot and try to send an incremental stream, btrfs send would
give you EIO. That is because is_extent_unchanged had no support for holes
being punched. With this patch, instead of returning EIO we just return
0 (== the extent is not unchanged) and we're good.
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Cc: Alexander Block <ablock84@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Rafael J. Wysocki [Thu, 28 Mar 2013 12:52:59 +0000 (13:52 +0100)]
Merge branch 'acpi-fixes' into fixes
* acpi-fixes:
PCI / ACPI: hold acpi_scan_lock during root bus hotplug
ACPI / APEI: fix error status check condition for CPER
ACPI / PM: fix suspend and resume on Sony Vaio VGN-FW21M
Rafael J. Wysocki [Thu, 28 Mar 2013 12:52:47 +0000 (13:52 +0100)]
Merge branch 'pm-fixes' into fixes
* pm-fixes:
cpufreq: acpi-cpufreq: Don't set policy->related_cpus from .init()
cpufreq: stats: do cpufreq_cpu_put() corresponding to cpufreq_cpu_get()
intel-pstate: Use #defines instead of hard-coded values.
cpufreq / intel_pstate: Fix calculation of current frequency
cpufreq / intel_pstate: Add function to check that all MSRs are valid
Linus Torvalds [Wed, 27 Mar 2013 22:50:24 +0000 (15:50 -0700)]
Merge tag 'for-linus' of git://git./linux/kernel/git/sfr/next-fixes
Pull powerpc build fixes from Stephen Rothwell:
"Just a couple of build fixes for powerpc all{mod,yes}config.
Submitted by me since BenH is on vacation."
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/next-fixes:
powerpc: define the conditions where the ePAPR idle hcall can be supported
powerpc: make additional room in exception vector area
Linus Torvalds [Wed, 27 Mar 2013 19:56:25 +0000 (12:56 -0700)]
Merge tag 'stable/for-linus-3.9-rc4-tag' of git://git./linux/kernel/git/konrad/xen
Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
"This is mostly just the last stragglers of the regression bugs that
this merge window had. There are also two bug-fixes: one that adds an
extra layer of security, and a regression fix for a change that was
added in v3.7 (the v1 was faulty, the v2 works).
- Regression fixes for C-and-P states not being parsed properly.
- Fix possible security issue with guests triggering DoS via
non-assigned MSI-Xs.
- Fix regression (introduced in v3.7) with raising an event (v2).
- Fix hastily introduced band-aid during c0 for the CR3 blowup."
* tag 'stable/for-linus-3.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/events: avoid race with raising an event in unmask_evtchn()
xen/mmu: Move the setting of pvops.write_cr3 to later phase in bootup.
xen/acpi-stub: Disable it b/c the acpi_processor_add is no longer called.
xen-pciback: notify hypervisor about devices intended to be assigned to guests
xen/acpi-processor: Don't dereference struct acpi_processor on all CPUs.
Linus Torvalds [Wed, 27 Mar 2013 18:18:43 +0000 (11:18 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:
- fix for potential 3.9 regression in handling of buttons for touchpads
following HID mt specification; potential because reportedly there is
no retail product on the market that would be using this feature, but
nevertheless we'd better follow the spec. Fix by Benjamin Tissoires.
- support for two quirky devices added by Josh Boyer.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: multitouch: fix touchpad buttons
HID: usbhid: fix build problem
HID: usbhid: quirk for MSI GX680R led panel
HID: usbhid: quirk for Realtek Multi-card reader
Linus Torvalds [Wed, 27 Mar 2013 16:25:11 +0000 (09:25 -0700)]
Merge tag 'iommu-fixes-v3.9-rc4' of git://git./linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
"Here are some fixes which have collected since Linux v3.9-rc1.
The most important one fixes a long-standing regressen which make
re-hotplugged devices unusable when AMD IOMMU is used.
The other patches fix build issues (build regression on OMAP and a
section mismatch). One patch just removes a duplicate header include."
* tag 'iommu-fixes-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Make sure dma_ops are set for hotplug devices
x86, io_apic: remove duplicated include from irq_remapping.c
iommu: OMAP: build only on OMAP2+
amd_iommu_init: remove __init from amd_iommu_erratum_746_workaround
Al Viro [Wed, 27 Mar 2013 15:20:30 +0000 (15:20 +0000)]
vfs/splice: Fix missed checks in new __kernel_write() helper
Commit
06ae43f34bcc ("Don't bother with redoing rw_verify_area() from
default_file_splice_from()") lost the checks to test existence of the
write/aio_write methods. My apologies ;-/
Eventually, we want that in fs/splice.c side of things (no point
repeating it for every buffer, after all), but for now this is the
obvious minimal fix.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Vrabel [Mon, 25 Mar 2013 14:11:19 +0000 (14:11 +0000)]
xen/events: avoid race with raising an event in unmask_evtchn()
In unmask_evtchn(), when the mask bit is cleared after testing for
pending and the event becomes pending between the test and clear, then
the upcall will not become pending and the event may be lost or
delayed.
Avoid this by always clearing the mask bit before checking for
pending. If a hypercall is needed, remask the event as
EVTCHNOP_unmask will only retrigger pending events if they were
masked.
This fixes a regression introduced in 3.7 by
b5e579232d635b79a3da052964cb357ccda8d9ea (xen/events: fix
unmask_evtchn for PV on HVM guests) which reordered the clear mask and
check pending operations.
Changes in v2:
- set mask before hypercall.
Cc: stable@vger.kernel.org
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Konrad Rzeszutek Wilk [Fri, 22 Mar 2013 14:34:28 +0000 (10:34 -0400)]
xen/mmu: Move the setting of pvops.write_cr3 to later phase in bootup.
We move the setting of write_cr3 from the early bootup variant
(see git commit
0cc9129d75ef8993702d97ab0e49542c15ac6ab9
"x86-64, xen, mmu: Provide an early version of write_cr3.")
to a more appropiate location.
This new location sets all of the other non-early variants
of pvops calls - and most importantly is before the
alternative_asm mechanism kicks in.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Konrad Rzeszutek Wilk [Fri, 22 Mar 2013 14:15:47 +0000 (10:15 -0400)]
xen/acpi-stub: Disable it b/c the acpi_processor_add is no longer called.
With the Xen ACPI stub code (CONFIG_XEN_STUB=y) enabled, the power
C and P states are no longer uploaded to the hypervisor.
The reason is that the Xen CPU hotplug code: xen-acpi-cpuhotplug.c
and the xen-acpi-stub.c register themselves as the "processor" type object.
That means the generic processor (processor_driver.c) stops
working and it does not call (acpi_processor_add) which populates the
per_cpu(processors, pr->id) = pr;
structure. The 'pr' is gathered from the acpi_processor_get_info function
which does the job of finding the C-states and figuring out PBLK address.
The 'processors->pr' is then later used by xen-acpi-processor.c (the one that
uploads C and P states to the hypervisor). Since it is NULL, we end
skip the gathering of _PSD, _PSS, _PCT, etc and never upload the power
management data.
The end result is that enabling the CONFIG_XEN_STUB in the build means that
xen-acpi-processor is not working anymore.
This temporary patch fixes it by marking the XEN_STUB driver as
BROKEN until this can be properly fixed.
CC: jinsong.liu@intel.com
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Roland Stigge [Tue, 26 Mar 2013 17:36:01 +0000 (18:36 +0100)]
usb: Fix compile error by selecting USB_OTG_UTILS
The current lpc32xx_defconfig breaks like this, caused by recent phy
restructuring:
LD init/built-in.o
drivers/built-in.o: In function `usb_hcd_nxp_probe':
drivers/usb/host/ohci-nxp.c:224: undefined reference to `isp1301_get_client'
drivers/built-in.o: In function `lpc32xx_udc_probe':
drivers/usb/gadget/lpc32xx_udc.c:3104: undefined reference to
`isp1301_get_client' distcc[27867] ERROR: compile (null) on localhost failed
make: *** [vmlinux] Error 1
Caused by
1c2088812f095df77f4b3224b65db79d7111a300 (usb: Makefile: fix
drivers/usb/phy/ Makefile entry)
This patch fixes this by selecting USB_OTG_UTILS in Kconfig which
causes the phy driver to be built again.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Eric W. Biederman [Sun, 24 Mar 2013 21:28:27 +0000 (14:28 -0700)]
userns: Restrict when proc and sysfs can be mounted
Only allow unprivileged mounts of proc and sysfs if they are already
mounted when the user namespace is created.
proc and sysfs are interesting because they have content that is
per namespace, and so fresh mounts are needed when new namespaces
are created while at the same time proc and sysfs have content that
is shared between every instance.
Respect the policy of who may see the shared content of proc and sysfs
by only allowing new mounts if there was an existing mount at the time
the user namespace was created.
In practice there are only two interesting cases: proc and sysfs are
mounted at their usual places, proc and sysfs are not mounted at all
(some form of mount namespace jail).
Cc: stable@vger.kernel.org
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Eric W. Biederman [Fri, 22 Mar 2013 01:13:15 +0000 (18:13 -0700)]
ipc: Restrict mounting the mqueue filesystem
Only allow mounting the mqueue filesystem if the caller has CAP_SYS_ADMIN
rights over the ipc namespace. The principle here is if you create
or have capabilities over it you can mount it, otherwise you get to live
with what other people have mounted.
This information is not particularly sensitive and mqueue essentially
only reports which posix messages queues exist. Still when creating a
restricted environment for an application to live any extra
information may be of use to someone with sufficient creativity. The
historical if imperfect way this information has been restricted has
been not to allow mounts and restricting this to ipc namespace
creators maintains the spirit of the historical restriction.
Cc: stable@vger.kernel.org
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Eric W. Biederman [Fri, 22 Mar 2013 11:08:05 +0000 (04:08 -0700)]
vfs: Carefully propogate mounts across user namespaces
As a matter of policy MNT_READONLY should not be changable if the
original mounter had more privileges than creator of the mount
namespace.
Add the flag CL_UNPRIVILEGED to note when we are copying a mount from
a mount namespace that requires more privileges to a mount namespace
that requires fewer privileges.
When the CL_UNPRIVILEGED flag is set cause clone_mnt to set MNT_NO_REMOUNT
if any of the mnt flags that should never be changed are set.
This protects both mount propagation and the initial creation of a less
privileged mount namespace.
Cc: stable@vger.kernel.org
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Eric W. Biederman [Fri, 22 Mar 2013 10:10:15 +0000 (03:10 -0700)]
vfs: Add a mount flag to lock read only bind mounts
When a read-only bind mount is copied from mount namespace in a higher
privileged user namespace to a mount namespace in a lesser privileged
user namespace, it should not be possible to remove the the read-only
restriction.
Add a MNT_LOCK_READONLY mount flag to indicate that a mount must
remain read-only.
CC: stable@vger.kernel.org
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Eric W. Biederman [Fri, 15 Mar 2013 08:45:51 +0000 (01:45 -0700)]
userns: Don't allow creation if the user is chrooted
Guarantee that the policy of which files may be access that is
established by setting the root directory will not be violated
by user namespaces by verifying that the root directory points
to the root of the mount namespace at the time of user namespace
creation.
Changing the root is a privileged operation, and as a matter of policy
it serves to limit unprivileged processes to files below the current
root directory.
For reasons of simplicity and comprehensibility the privilege to
change the root directory is gated solely on the CAP_SYS_CHROOT
capability in the user namespace. Therefore when creating a user
namespace we must ensure that the policy of which files may be access
can not be violated by changing the root directory.
Anyone who runs a processes in a chroot and would like to use user
namespace can setup the same view of filesystems with a mount
namespace instead. With this result that this is not a practical
limitation for using user namespaces.
Cc: stable@vger.kernel.org
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Benjamin Tissoires [Fri, 22 Mar 2013 17:53:57 +0000 (18:53 +0100)]
HID: multitouch: fix touchpad buttons
Commit "HID: multitouch: use the callback "report" instead..." breaks the
buttons of touchpads following the HID multitouch specification.
The buttons were emmitted through hid-input, but as now the events
are generated only in hid-multitouch, the buttons are not emmitted anymore.
The input_event() call is far much simpler than the hid-input one as
many of the different tests do not apply to multitouch touchpads.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Joerg Roedel [Tue, 26 Mar 2013 21:48:23 +0000 (22:48 +0100)]
iommu/amd: Make sure dma_ops are set for hotplug devices
There is a bug introduced with commit 27c2127 that causes
devices which are hot unplugged and then hot-replugged to
not have per-device dma_ops set. This causes these devices
to not function correctly. Fixed with this patch.
Cc: stable@vger.kernel.org
Reported-by: Andreas Degert <andreas.degert@googlemail.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Linus Torvalds [Wed, 27 Mar 2013 00:42:55 +0000 (17:42 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
"stable fodder; assorted deadlock fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vt: synchronize_rcu() under spinlock is not nice...
Nest rename_lock inside vfsmount_lock
Don't bother with redoing rw_verify_area() from default_file_splice_from()
Al Viro [Wed, 27 Mar 2013 00:30:17 +0000 (20:30 -0400)]
vt: synchronize_rcu() under spinlock is not nice...
vcs_poll_data_free() calls unregister_vt_notifier(), which calls
atomic_notifier_chain_unregister(), which calls synchronize_rcu().
Do it *after* we'd dropped ->f_lock.
Cc: stable@vger.kernel.org (all kernels since 2.6.37)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Yinghai Lu [Mon, 11 Mar 2013 05:05:16 +0000 (05:05 +0000)]
PCI / ACPI: hold acpi_scan_lock during root bus hotplug
During merging the PCI tree with the PM/ACPI tree, Linus noticed
that we don't use the same lock using patten about ACPI PCI root as
acpiphp.
Here apply the same locking patten, and we need to execute
acpi_bus_hot_remove_device() via acpi_os_hotplug_execute()
as it also holds acpi_scan_lock.
[rjw: Changelog]
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
No-objection-from: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Chen Gong [Tue, 19 Mar 2013 06:48:07 +0000 (06:48 +0000)]
ACPI / APEI: fix error status check condition for CPER
In Table 18-289, ACPI5.0 SPEC, the error data length in CPER
Generic Error Data Entry can be 0, which means this generic
error data entry can have only one header. So fix the check
conditon for it.
Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Fabio Valentini [Mon, 11 Mar 2013 19:16:34 +0000 (19:16 +0000)]
ACPI / PM: fix suspend and resume on Sony Vaio VGN-FW21M
Add Sony Vaio VGN-FW21M to the device blacklist in
drivers/acpi/sleep.c.
Fixes suspend/resume on this device (device no longer reboots
instead of resuming).
References: https://bugzilla.kernel.org/show_bug.cgi?id=55001
Signed-off-by: Fabio Valentini <fafatheone@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>