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I installed Fedora 17 which no longer supports grub v1. I worked
with grub2 for a while, but there's so many issues with it and automated
rebooting, that I decided to switch to syslinux. Instead of using
the REBOOT_SCRIPT and add customized changes to get syslinux booted,
I thought it better to make ktest aware of syslinux and add options
to simplify the use of syslinux on a target test box.
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: John 'Warthog9' Hawley <warthog9@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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In real mode CS register is writable, so do not #GP on write.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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If enable_unrestricted_guest is true vmx->rmode.vm86_active will
always be false.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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On CPUs without support for unrestricted guests DPL cannot be smaller
than RPL for data segments during guest entry, but this state can occurs
if a data segment selector changes while vcpu is in real mode to a value
with lowest two bits != 00. Fix that by forcing DPL == RPL on transition
to protected mode.
This is a regression introduced by c865c43de66dc97.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Some MSI laptop BIOSes are broken - INT 15h code uses port 92h to enable A20
line but resume code assumes that KBC was used.
The laptop will not resume from S3 otherwise but powers off after a while
and then powers on again stuck with a blank screen.
Fix it by enabling A20 using KBC in i8042_platform_init for x86.
Fixes https://bugzilla.kernel.org/show_bug.cgi?id=12878
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/201212112218.06551.linux@rainbow-software.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB patches from Greg Kroah-Hartman:
"Here's the big set of USB patches for 3.8-rc1.
Lots of USB host driver cleanups in here, and a bit of a reorg of the
EHCI driver to make it easier for the different EHCI platform drivers
to all work together nicer, which was a reduction in overall code. We
also deleted some unused firmware files, and got rid of the very old
file_storage usb gadget driver that had been broken for a long time.
This means we ended up removing way more code than added, always a
nice thing to see:
310 files changed, 3028 insertions(+), 10754 deletions(-)
Other than that, the usual set of new device ids, driver fixes, gadget
driver and controller updates and the like.
All of these have been in the linux-next tree for a number of weeks.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (228 commits)
USB: mark uas driver as BROKEN
xhci: Add Lynx Point LP to list of Intel switchable hosts
uwb: fix uwb_dev_unlock() missed at an error path in uwb_rc_cmd_async()
USB: ftdi_sio: Add support for Newport AGILIS motor drivers
MAINTAINERS: remove drivers/block/ub.c
USB: chipidea: fix use after free bug
ezusb: add dependency to USB
usb: ftdi_sio: fixup BeagleBone A5+ quirk
USB: cp210x: add Virtenio Preon32 device id
usb: storage: remove redundant memset() in usb_probe_stor1()
USB: option: blacklist network interface on Huawei E173
USB: OHCI: workaround for hardware bug: retired TDs not added to the Done Queue
USB: add new zte 3g-dongle's pid to option.c
USB: opticon: switch to generic read implementation
USB: opticon: refactor reab-urb processing
USB: opticon: use usb-serial bulk-in urb
USB: opticon: increase bulk-in size
USB: opticon: use port as urb context
USB: opticon: pass port to get_serial_info
USB: opticon: make private data port specific
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY/Serial merge from Greg Kroah-Hartman:
"Here's the big tty/serial tree set of changes for 3.8-rc1.
Contained in here is a bunch more reworks of the tty port layer from
Jiri and bugfixes from Alan, along with a number of other tty and
serial driver updates by the various driver authors.
Also, Jiri has been coerced^Wconvinced to be the co-maintainer of the
TTY layer, which is much appreciated by me.
All of these have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fixed up some trivial conflicts in the staging tree, due to the fwserial
driver having come in both ways (but fixed up a bit in the serial tree),
and the ioctl handling in the dgrp driver having been done slightly
differently (staging tree got that one right, and removed both
TIOCGSOFTCAR and TIOCSSOFTCAR).
* tag 'tty-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (146 commits)
staging: sb105x: fix potential NULL pointer dereference in mp_chars_in_buffer()
staging/fwserial: Remove superfluous free
staging/fwserial: Use WARN_ONCE when port table is corrupted
staging/fwserial: Destruct embedded tty_port on teardown
staging/fwserial: Fix build breakage when !CONFIG_BUG
staging: fwserial: Add TTY-over-Firewire serial driver
drivers/tty/serial/serial_core.c: clean up HIGH_BITS_OFFSET usage
staging: dgrp: dgrp_tty.c: Audit the return values of get/put_user()
staging: dgrp: dgrp_tty.c: Remove the TIOCSSOFTCAR ioctl handler from dgrp driver
serial: ifx6x60: Add modem power off function in the platform reboot process
serial: mxs-auart: unmap the scatter list before we copy the data
serial: mxs-auart: disable the Receive Timeout Interrupt when DMA is enabled
serial: max310x: Setup missing "can_sleep" field for GPIO
tty/serial: fix ifx6x60.c declaration warning
serial: samsung: add devicetree properties for non-Exynos SoCs
serial: samsung: fix potential soft lockup during uart write
tty: vt: Remove redundant null check before kfree.
tty/8250 Add check for pci_ioremap_bar failure
tty/8250 Add support for Commtech's Fastcom Async-335 and Fastcom Async-PCIe cards
tty/8250 Add XR17D15x devices to the exar_handle_irq override
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver tree merge from Greg Kroah-Hartman:
"Here's the big staging tree merge for 3.8-rc1
There's a lot of patches in here, the majority being the comedi
rework/cleanup that has been ongoing and is causing a huge reduction
in overall code size, which is amazing to watch. We also removed some
older drivers (telephony and rts_pstor), and added a new one (fwserial
which also came in through the tty tree due to tty api changes, take
that one if you get merge conflicts.)
The iio and ipack drivers are moving out of the staging area into
their own part of the kernel as they have been cleaned up sufficiently
and are working well.
Overall, again a reduction of code:
768 files changed, 31887 insertions(+), 82166 deletions(-)
All of this has been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1298 commits)
iio: imu: adis16480: remove duplicated include from adis16480.c
iio: gyro: adis16136: remove duplicated include from adis16136.c
iio:imu: adis16480: show_firmware() buffer too small
iio:gyro: adis16136: divide by zero in write_frequency()
iio: adc: Add Texas Instruments ADC081C021/027 support
iio:ad7793: Add support for the ad7796 and ad7797
iio:ad7793: Add support for the ad7798 and ad7799
staging:iio: Move ad7793 driver out of staging
staging:iio:ad7793: Implement stricter id checking
staging:iio:ad7793: Move register definitions from header to source
staging:iio:ad7793: Rework regulator handling
staging:iio:ad7793: Rework platform data
staging:iio:ad7793: Use kstrtol instead of strict_strtol
staging:iio:ad7793: Use usleep_range instead of msleep
staging:iio:ad7793: Fix temperature scale
staging:iio:ad7793: Fix VDD monitor scale
staging: gdm72xx: unlock on error in init_usb()
staging: panel: pass correct lengths to keypad_send_key()
staging: comedi: addi_apci_2032: fix interrupt support
staging: comedi: addi_apci_2032: move i_APCI2032_ConfigDigitalOutput()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull Char/Misc driver merge from Greg Kroah-Hartman:
"Here is the "big" char/misc driver patches for 3.8-rc1. I'm starting
to put random driver subsystems that I had previously sent you through
the driver-core tree in this tree, as it makes more sense to do so.
Nothing major here, the various __dev* removals, some mei driver
updates, and other random driver-specific things from the different
maintainers and developers.
Note, some MFD drivers got added through this tree, and they are also
coming in through the "real" MFD tree as well, due to some major
mis-communication between me and the different developers. If you
have any merge conflicts, take the ones from the MFD tree, not these
ones, sorry about that.
All of this has been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fix up trivial conflict in drivers/mmc/host/Kconfig due to new drivers
having been added (both at the end, as usual..)
* tag 'char-misc-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (84 commits)
MAINTAINERS: remove drivers/staging/hv/
misc/st_kim: Free resources in the error path of probe()
drivers/char: for hpet, add count checking, and ~0UL instead of -1
w1-gpio: Simplify & get rid of defines
w1-gpio: Pinctrl-fy
extcon: remove use of __devexit_p
extcon: remove use of __devinit
extcon: remove use of __devexit
drivers: uio: Only allocate new private data when probing device tree node
drivers: uio_dmem_genirq: Allow partial success when opening device
drivers: uio_dmem_genirq: Don't use DMA_ERROR_CODE to indicate unmapped regions
drivers: uio_dmem_genirq: Don't mix address spaces for dynamic region vaddr
uio: remove use of __devexit
uio: remove use of __devinitdata
uio: remove use of __devinit
uio: remove use of __devexit_p
char: remove use of __devexit
char: remove use of __devinitconst
char: remove use of __devinitdata
char: remove use of __devinit
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This removes the sparse warning:
arch/x86/kernel/crash.c:49:32: sparse: incompatible types in comparison expression (different address spaces)
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg Kroah-Hartman:
"Here's the large driver core updates for 3.8-rc1.
The biggest thing here is the various __dev* marking removals. This
is going to be a pain for the merge with different subsystem trees, I
know, but all of the patches included here have been ACKed by their
various subsystem maintainers, as they wanted them to go through here.
If this is too much of a pain, I can pull all of them out of this tree
and just send you one with the other fixes/updates and then, after
3.8-rc1 is out, do the rest of the removals to ensure we catch them
all, it's up to you. The merges should all be trivial, and Stephen
has been doing them all in linux-next for a few weeks now quite
easily.
Other than the __dev* marking removals, there's nothing major here,
some firmware loading updates and other minor things in the driver
core.
All of these have (much to Stephen's annoyance), been in linux-next
for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fixed up trivial conflicts in drivers/gpio/gpio-{em,stmpe}.c due to gpio
update.
* tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (93 commits)
modpost.c: Stop checking __dev* section mismatches
init.h: Remove __dev* sections from the kernel
acpi: remove use of __devinit
PCI: Remove __dev* markings
PCI: Always build setup-bus when PCI is enabled
PCI: Move pci_uevent into pci-driver.c
PCI: Remove CONFIG_HOTPLUG ifdefs
unicore32/PCI: Remove CONFIG_HOTPLUG ifdefs
sh/PCI: Remove CONFIG_HOTPLUG ifdefs
powerpc/PCI: Remove CONFIG_HOTPLUG ifdefs
mips/PCI: Remove CONFIG_HOTPLUG ifdefs
microblaze/PCI: Remove CONFIG_HOTPLUG ifdefs
dma: remove use of __devinit
dma: remove use of __devexit_p
firewire: remove use of __devinitdata
firewire: remove use of __devinit
leds: remove use of __devexit
leds: remove use of __devinit
leds: remove use of __devexit_p
mmc: remove use of __devexit
...
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git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
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Pull GPIO updates from Grant Likely:
"GPIO follow up patch and type change for v3.5 merge window
Primarily device driver additions, features and bug fixes. Not much
touching gpio common subsystem support. Should not be scary."
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits)
gpio: Provide the STMPE GPIO driver with its own IRQ Domain
gpio: add TS-5500 DIO blocks support
gpio: pcf857x: use client->irq for gpio_to_irq()
gpio: stmpe: Add DT support for stmpe gpio
gpio: pl061 depends on ARM
gpio/pl061: remove old comment
gpio: SPEAr: add spi chipselect control driver
gpio: gpio-max710x: Support device tree probing
gpio: twl4030: Use only TWL4030_MODULE_LED for LED configuration
gpio: tegra: read output value when gpio is set in direction_out
gpio: pca953x: Add compatible strings to gpio-pca953x driver
gpio: pca953x: Register an IRQ domain
gpio: mvebu: Set free callback for gpio_chip
gpio: tegra: Drop exporting static functions
gpio: tegra: Staticize non-exported symbols
gpio: tegra: fix suspend/resume apis
gpio-pch: Set parent dev for gpio chip
gpio: em: Fix build errors
GPIO: clps711x: use platform_device_unregister in gpio_clps711x_init()
gpio/tc3589x: convert to use the simple irqdomain
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Due to my recent commit (ath9k: allow to load EEPROM
content via firmware API) smatch complains about that
the 'pdata' variable in 'ath9k_hw_init' can be NULL
and it is dereferenced before checking that. That is
absolutely correct.
Check the 'pdata' variable before using it to avoid
a NULL pointer dereference.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This is true for at least AR5213, and shouldn't be different for other
ath5k PHYs. Tested on AR2413 and AR5414.
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Tested-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Accurate RX timestamp reporting is important for proper IBSS merging,
mesh synchronization, and MCCA scheduling. Namely, knowing where the TSF
is recorded is needed to sync with the beacon timestamp field.
Tested with AR9271.
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Accurate RX timestamp reporting is important for proper IBSS merging,
mesh synchronization, and MCCA scheduling. Namely, knowing where the TSF
is recorded is needed to sync with the beacon timestamp field.
Tested with AR9280.
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Someone who physically disassembled the device confirms that its
chipset is Ralink RT5370n.
(Fixed-up after having already merged original patch. -- JWL)
Signed-off-by: Maia Kozheva <sikon@ubuntu.com>
Reviewed-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael Wysocki:
- Introduction of device PM QoS flags.
- ACPI device power management update allowing subsystems other than
PCI to use it more easily.
- ACPI device enumeration rework allowing additional kinds of devices
to be enumerated via ACPI. From Mika Westerberg, Adrian Hunter,
Mathias Nyman, Andy Shevchenko, and Rafael J. Wysocki.
- ACPICA update to version 20121018 from Bob Moore and Lv Zheng.
- ACPI memory hotplug update from Wen Congyang and Yasuaki Ishimatsu.
- Introduction of acpi_handle_<level>() messaging macros and ACPI-based
CPU hot-remove support from Toshi Kani.
- ACPI EC updates from Feng Tang.
- cpufreq updates from Viresh Kumar, Fabio Baltieri and others.
- cpuidle changes to quickly notice governor prediction failure from
Youquan Song.
- Support for using multiple cpuidle drivers at the same time and
cpuidle cleanups from Daniel Lezcano.
- devfreq updates from Nishanth Menon and others.
- cpupower update from Thomas Renninger.
- Fixes and small cleanups all over the place.
* tag 'pm+acpi-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (196 commits)
mmc: sdhci-acpi: enable runtime-pm for device HID INT33C6
ACPI: add Haswell LPSS devices to acpi_platform_device_ids list
ACPI: add documentation about ACPI 5 enumeration
pnpacpi: fix incorrect TEST_ALPHA() test
ACPI / PM: Fix header of acpi_dev_pm_detach() in acpi.h
ACPI / video: ignore BIOS initial backlight value for HP Folio 13-2000
ACPI : do not use Lid and Sleep button for S5 wakeup
ACPI / PNP: Do not crash due to stale pointer use during system resume
ACPI / video: Add "Asus UL30VT" to ACPI video detect blacklist
ACPI: do acpisleep dmi check when CONFIG_ACPI_SLEEP is set
spi / ACPI: add ACPI enumeration support
gpio / ACPI: add ACPI support
PM / devfreq: remove compiler error with module governors (2)
cpupower: IvyBridge (0x3a and 0x3e models) support
cpupower: Provide -c param for cpupower monitor to schedule process on all cores
cpupower tools: Fix warning and a bug with the cpu package count
cpupower tools: Fix malloc of cpu_info structure
cpupower tools: Fix issues with sysfs_topology_read_file
cpupower tools: Fix minor warnings
cpupower tools: Update .gitignore for files created in the debug directories
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Before rebooting the target, run the sync command, as it seems that
either Grub2 or systemd gets screwed up if you update to reboot a kernel
once and do a reboot without doing a sync.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Pull device tree changes from Grant Likely:
"Here are the DT changes I've got queued up for v3.8. As described
below, there are a lot of bug fixes here and documentation updates but
nothing major:
Bug fixes, little cleanups, and documentation changes. The most
invasive thing here touches a bunch of the arch directories to use a
common build rule for .dtb files. There are no major changes to
functionality here other than a few new helper functions."
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits)
arm64: Fix the dtbs target building
mtd: nand: davinci: fix the binding documentation
rtc: rtc-mv: Add the device tree binding documentation
devicetree/bindings: Move gpio-leds binding into leds directory
of/vendor-prefixes: add Imagination Technologies
microblaze: use new common dtc rule
c6x: use new common dtc rule
openrisc: use new common dtc rule
arm64: Add dtbs target for building all the enabled dtb files
arm64: use new common dtc rule
ARM: dt: change .dtb build rules to build in dts directory
kbuild: centralize .dts->.dtb rule
Fix build when CONFIG_W1_MASTER_GPIO=m b exporting "allnodes"
of/spi: Honour "status=disabled" property of device
of_mdio: Honour "status=disabled" property of device
of_i2c: Honour "status=disabled" property of device
powerpc: Fix fallout from device_node->name constification
of: add 'const' for of_parse_phandle parameter *np
Documentation: correct of_platform_populate() argument list
script: dtc: clean generated files
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Pull irqdomain changes from Grant Likely:
"Trivial changes to irqdomain. An update to the documentation and make
one of the error paths not quite so obnoxious."
* tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6:
irqdomain: update documentation
irqdomain: stop screaming about preallocated irqdescs
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Pull EDAC fixes from Borislav Petkov:
- EDAC core error path fix, from Denis Kirjanov.
- Generalization of AMD MCE bank names and some minor error reporting
improvements.
- EDAC core cleanups and simplifications, from Wei Yongjun.
- amd64_edac fixes for sysfs-reported values, from Josh Hunt.
- some heavy amd64_edac error reporting path shaving, leading to
removing a bunch of code.
- amd64_edac error injection method improvements.
- EDAC core cleanups and fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (24 commits)
EDAC, pci_sysfs: Use for_each_pci_dev to simplify the code
EDAC: Handle error path in edac_mc_sysfs_init() properly
MCE, AMD: Dump error status
MCE, AMD: Report decoded error type first
MCE, AMD: Dump CPU f/m/s triple with the error
MCE, AMD: Remove functional unit references
EDAC: Convert to use simple_open()
EDAC, Calxeda highbank: Convert to use simple_open()
EDAC: Fix mc size reported in sysfs
EDAC: Fix csrow size reported in sysfs
EDAC: Pass mci parent
EDAC: Add memory controller flags
amd64_edac: Fix csrows size and pages computation
amd64_edac: Use DBAM_DIMM macro
amd64_edac: Fix K8 chip select reporting
amd64_edac: Reorganize error reporting path
amd64_edac: Do not check whether error address is valid
amd64_edac: Improve error injection
amd64_edac: Cleanup error injection code
amd64_edac: Small fixlets and cleanups
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git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull CMA and DMA-mapping update from Marek Szyprowski:
"Another set of Contiguous Memory Allocator and DMA-mapping framework
updates for v3.8.
This pull request consists only of two patches. The first fixes a
long standing issue with dmapools (the code predates current GIT
history), which forced all allocations to use GFP_ATOMIC flag,
ignoring the flags passed by the caller. The second patch changes CMA
code to correctly use phys_addr_t type what enables support for LPAE
systems."
* 'for-v3.8' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
drivers: cma: represent physical addresses as phys_addr_t
mm: dmapool: use provided gfp flags for all dma_alloc_coherent() calls
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Pull clock framework changes from Mike Turquette:
"The common clock framework changes for 3.8 are comprised of lots of
fixes for existing platforms as well as new ports for some ARM
platforms. In addition there are new clk drivers for audio devices
and MFDs."
Fix up trivial conflict in <linux/clk-provider.h> (removal of 'inline'
clashing with return type fixes)
* tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux: (51 commits)
MAINTAINERS: bad email address for Mike Turquette
clk: introduce optional disable_unused callback
clk: ux500: fix bit error
clk: clock multiplexers may register out of order
clk: ux500: Initial support for abx500 clock driver
CLK: SPEAr: Remove unused dummy apb_pclk
CLK: SPEAr: Correct index scanning done for clock synths
CLK: SPEAr: Update clock rate table
CLK: SPEAr: Add missing clocks
CLK: SPEAr: Set CLK_SET_RATE_PARENT for few clocks
CLK: SPEAr13xx: fix parent names of multiple clocks
CLK: SPEAr13xx: Fix mux clock names
CLK: SPEAr: Fix dev_id & con_id for multiple clocks
clk: move IM-PD1 clocks to drivers/clk
clk: make ICST driver handle the VCO registers
clk: add GPLv2 headers to the Versatile clock files
clk: mxs: Use a better name for the USB PHY clock
clk: spear: Add stub functions for spear3[0|1|2]0_clk_init()
CLK: clk-twl6040: fix return value check in twl6040_clk_probe()
clk: ux500: Register nomadik keypad clock lookups for u8500
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl changes from Linus Walleij:
"These are the first and major pinctrl changes for the v3.8 merge
cycle. Some of this is used as merge base for other trees so I better
be early on the trigger.
As can be seen from the diffstat the major changes are:
- A big conversion of the AT91 pinctrl driver and the associated ACKed
platform changes under arch/arm/max-at91 and its device trees. This
has been coordinated with the AT91 maintainers to go in through the
pinctrl tree.
- A larger chunk of changes to the SPEAr drivers and the addition of
the "plgpio" driver for the SPEAr as well.
- The removal of the remnants of the Nomadik driver from the arch/arm
tree and fusion of that into the Nomadik driver and platform data
header files.
- Some local movement in the Marvell MVEBU drivers, these now have
their own subdirectory.
- The addition of a chunk of code to gpiolib under drivers/gpio to
register gpio-to-pin range mappings from the GPIO side of things.
This has been requested by Grant Likely and is now implemented, it
is particularly useful for device tree work.
Then we have incremental updates all over the place, many of these are
cleanups and fixes from Axel Lin who has done a great job of removing
minor mistakes and compilation annoyances."
* tag 'pinctrl-for-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (114 commits)
ARM: mmp: select PINCTRL for ARCH_MMP
pinctrl: Drop selecting PINCONF for MMP2, PXA168 and PXA910
pinctrl: pinctrl-single: Fix error check condition
pinctrl: SPEAr: Update error check for unsigned variables
gpiolib: Fix use after free in gpiochip_add_pin_range
gpiolib: rename pin range arguments
pinctrl: single: support gpio request and free
pinctrl: generic: add input schmitt disable parameter
pinctrl/u300/coh901: stop spawning pinctrl from GPIO
pinctrl/u300/coh901: let the gpio_chip register the range
pinctrl: add function to retrieve range from pin
gpiolib: return any error code from range creation
pinctrl: make range registration defer properly
gpiolib: rename find_pinctrl_*
gpiolib: let gpiochip_add_pin_range() specify offset
ARM: at91: pm9g45: add mmc support
ARM: at91: Animeo IP: add mmc support
ARM: at91: dt: add mmc pinctrl for Atmel reference boards
ARM: at91: dt: at91sam9: add mmc pinctrl support
ARM: at91/dts: add nodes for atmel hsmci controllers for atmel boards
...
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"New driver: DA9055
Added/improved support for new chips in existing drivers: Z650/670,
N550/570, ADS7830, AMD 16h family"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (da9055) Fix chan_mux[DA9055_ADC_ADCIN3] setting
hwmon: DA9055 HWMON driver
hwmon: (coretemp) List TjMax for Z650/670 and N550/570
hwmon: (coretemp) Drop N4xx, N5xx, D4xx, D5xx CPUs from tjmax table
hwmon: (coretemp) Use model table instead of if/else to identify CPU models
hwmon: da9052: Use da9052_reg_update for rmw operations
hwmon: (coretemp) Drop dependency on PCI for TjMax detection on Atom CPUs
hwmon: (ina2xx) use module_i2c_driver to simplify the code
hwmon: (ads7828) add support for ADS7830
hwmon: (ads7828) driver cleanup
x86,AMD: Power driver support for AMD's family 16h processors
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git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball:
"MMC highlights for 3.8:
Core:
- Expose access to the eMMC RPMB ("Replay Protected Memory Block")
area by extending the existing mmc_block ioctl.
- Add SDIO powered-suspend DT properties to the core MMC DT binding.
- Add no-1-8-v DT flag for boards where the SD controller reports
that it supports 1.8V but the board itself has no way to switch to
1.8V.
- More work on switching to 1.8V UHS support using a vqmmc regulator.
- Fix up a case where the slot-gpio helper may fail to reset the host
controller properly if a card was removed during a transfer.
- Fix several cases where a broken device could cause an infinite
loop while we wait for a register to update.
Drivers:
- at91-mci: Remove obsolete driver, atmel-mci handles these devices
now.
- sdhci-dove: Allow using GPIOs for card-detect notifications.
- sdhci-esdhc: Fix for recovering from ADMA errors on broken silicon.
- sdhci-s3c: Add pinctrl support.
- wmt-sdmmc: New driver for WonderMedia SD/MMC controllers."
* tag 'mmc-updates-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (65 commits)
mmc: sdhci: implement the .card_event() method
mmc: extend the slot-gpio card-detection to use host's .card_event() method
mmc: add a card-event host operation
mmc: sdhci-s3c: Fix compilation warning
mmc: sdhci-pci: Enable SDHCI_CAN_DO_HISPD for Ricoh SDHCI controller
mmc: sdhci-dove: allow GPIOs to be used for card detection on Dove
mmc: sdhci-dove: use two-stage initialization for sdhci-pltfm
mmc: sdhci-dove: use devm_clk_get()
mmc: eSDHC: Recover from ADMA errors
mmc: dw_mmc: remove duplicated buswidth code
mmc: dw_mmc: relocate where dw_mci_setup_bus() is called from
mmc: Limit MMC speed to 52MHz if not HS200
mmc: dw_mmc: use devres functions in dw_mmc
mmc: sh_mmcif: remove unneeded clock connection ID
mmc: sh_mobile_sdhi: remove unneeded clock connection ID
mmc: sh_mobile_sdhi: fix clock frequency printing
mmc: Remove redundant null check before kfree in bus.c
mmc: Remove redundant null check before kfree in sdio_bus.c
mmc: sdhci-imx-esdhc: use more devm_* functions
mmc: dt: add no-1-8-v device tree flag
...
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We were mistakenly returning EINTR when we found an outstanding signal.
Instead we should returen ERESTARTSYS and allow the kernel to handle
things the right way.
Patch-from: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
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failed
In inotify_ignored_and_remove_idr() the removal of a watch descriptor is skipped
if the allocation of an ignored event failed and we are leaking memory (the
watch descriptor and the mark linked to it).
This patch ensures that the watch descriptor is removed regardless of whether
event creation failed or not.
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
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Boyd Yang reported a problem for the case that multiple threads of the same
thread group are waiting for a reponse for a permission event.
In this case it is possible that some of the threads are never woken up, even
if the response for the event has been received
(see http://marc.info/?l=linux-kernel&m=131822913806350&w=2).
The reason is that we are currently merging permission events if they belong to
the same thread group. But we are not prepared to wake up more than one waiter
for each event. We do
wait_event(group->fanotify_data.access_waitq, event->response ||
atomic_read(&group->fanotify_data.bypass_perm));
and after that
event->response = 0;
which is the reason that even if we woke up all waiters for the same event
some of them may see event->response being already set 0 again, then go back to
sleep and block forever.
With this patch we avoid that more than one thread is waiting for a response
by not merging permission events for the same thread group any more.
Reported-by: Boyd Yang <boyd.yang@gmail.com>
Signed-off-by: Lino Sanfilippo <LinoSanfilipp@gmx.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
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inotify is supposed to support async signal notification when information
is available on the inotify fd. This patch moves that support to generic
fsnotify functions so it can be used by all notification mechanisms.
Signed-off-by: Eric Paris <eparis@redhat.com>
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On Mon, Aug 01, 2011 at 04:38:22PM -0400, Eric Paris wrote:
>
> I finally built and tested a v3.0 kernel with these patches (I know I'm
> SOOOOOO far behind). Not what I hoped for:
>
> > [ 150.937798] VFS: Busy inodes after unmount of tmpfs. Self-destruct in 5 seconds. Have a nice day...
> > [ 150.945290] BUG: unable to handle kernel NULL pointer dereference at 0000000000000070
> > [ 150.946012] IP: [<ffffffff810ffd58>] shmem_free_inode+0x18/0x50
> > [ 150.946012] PGD 2bf9e067 PUD 2bf9f067 PMD 0
> > [ 150.946012] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
> > [ 150.946012] CPU 0
> > [ 150.946012] Modules linked in: nfs lockd fscache auth_rpcgss nfs_acl sunrpc ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables ext4 jbd2 crc16 joydev ata_piix i2c_piix4 pcspkr uinput ipv6 autofs4 usbhid [last unloaded: scsi_wait_scan]
> > [ 150.946012]
> > [ 150.946012] Pid: 2764, comm: syscall_thrash Not tainted 3.0.0+ #1 Red Hat KVM
> > [ 150.946012] RIP: 0010:[<ffffffff810ffd58>] [<ffffffff810ffd58>] shmem_free_inode+0x18/0x50
> > [ 150.946012] RSP: 0018:ffff88002c2e5df8 EFLAGS: 00010282
> > [ 150.946012] RAX: 000000004e370d9f RBX: 0000000000000000 RCX: ffff88003a029438
> > [ 150.946012] RDX: 0000000033630a5f RSI: 0000000000000000 RDI: ffff88003491c240
> > [ 150.946012] RBP: ffff88002c2e5e08 R08: 0000000000000000 R09: 0000000000000000
> > [ 150.946012] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88003a029428
> > [ 150.946012] R13: ffff88003a029428 R14: ffff88003a029428 R15: ffff88003499a610
> > [ 150.946012] FS: 00007f5a05420700(0000) GS:ffff88003f600000(0000) knlGS:0000000000000000
> > [ 150.946012] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> > [ 150.946012] CR2: 0000000000000070 CR3: 000000002a662000 CR4: 00000000000006f0
> > [ 150.946012] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > [ 150.946012] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> > [ 150.946012] Process syscall_thrash (pid: 2764, threadinfo ffff88002c2e4000, task ffff88002bfbc760)
> > [ 150.946012] Stack:
> > [ 150.946012] ffff88003a029438 ffff88003a029428 ffff88002c2e5e38 ffffffff81102f76
> > [ 150.946012] ffff88003a029438 ffff88003a029598 ffffffff8160f9c0 ffff88002c221250
> > [ 150.946012] ffff88002c2e5e68 ffffffff8115e9be ffff88002c2e5e68 ffff88003a029438
> > [ 150.946012] Call Trace:
> > [ 150.946012] [<ffffffff81102f76>] shmem_evict_inode+0x76/0x130
> > [ 150.946012] [<ffffffff8115e9be>] evict+0x7e/0x170
> > [ 150.946012] [<ffffffff8115ee40>] iput_final+0xd0/0x190
> > [ 150.946012] [<ffffffff8115ef33>] iput+0x33/0x40
> > [ 150.946012] [<ffffffff81180205>] fsnotify_destroy_mark_locked+0x145/0x160
> > [ 150.946012] [<ffffffff81180316>] fsnotify_destroy_mark+0x36/0x50
> > [ 150.946012] [<ffffffff81181937>] sys_inotify_rm_watch+0x77/0xd0
> > [ 150.946012] [<ffffffff815aca52>] system_call_fastpath+0x16/0x1b
> > [ 150.946012] Code: 67 4a 00 b8 e4 ff ff ff eb aa 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 48 83 ec 10 48 89 1c 24 4c 89 64 24 08 48 8b 9f 40 05 00 00
> > [ 150.946012] 83 7b 70 00 74 1c 4c 8d a3 80 00 00 00 4c 89 e7 e8 d2 5d 4a
> > [ 150.946012] RIP [<ffffffff810ffd58>] shmem_free_inode+0x18/0x50
> > [ 150.946012] RSP <ffff88002c2e5df8>
> > [ 150.946012] CR2: 0000000000000070
>
> Looks at aweful lot like the problem from:
> http://www.spinics.net/lists/linux-fsdevel/msg46101.html
>
I tried to reproduce this bug with your test program, but without success.
However, if I understand correctly, this occurs since we dont hold any locks when
we call iput() in mark_destroy(), right?
With the patches you tested, iput() is also not called within any lock, since the
groups mark_mutex is released temporarily before iput() is called. This is, since
the original codes behaviour is similar.
However since we now have a mutex as the biggest lock, we can do what you
suggested (http://www.spinics.net/lists/linux-fsdevel/msg46107.html) and
call iput() with the mutex held to avoid the race.
The patch below implements this. It uses nested locking to avoid deadlock in case
we do the final iput() on an inode which still holds marks and thus would take
the mutex again when calling fsnotify_inode_delete() in destroy_inode().
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
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In clear_marks_by_group_flags() the mark list of a group is iterated and the
marks are put on a temporary list.
Since we introduced fsnotify_destroy_mark_locked() we dont need the temp list
any more and are able to remove the marks while the mark list is iterated and
the mark list mutex is held.
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
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fsnotify_remove_mark()
This patch introduces fsnotify_add_mark_locked() and fsnotify_remove_mark_locked()
which are essentially the same as fsnotify_add_mark() and fsnotify_remove_mark() but
assume that the caller has already taken the groups mark mutex.
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
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In fsnotify_destroy_mark() dont get the group from the passed mark anymore,
but pass the group itself as an additional parameter to the function.
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
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__copy_skb_header(nskb, p) already copied p->cb[], no need to copy
it again.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case of rehashing, introduce a global variable 'br_mdb_rehash_seq'
which gets increased every time when rehashing, and assign
net->dev_base_seq + br_mdb_rehash_seq to cb->seq.
In theory cb->seq could be wrapped to zero, but this is not
easy to fix, as net->dev_base_seq is not visible inside
br_mdb_rehash(). In practice, this is rare.
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Though the process of the ordered extents is a bit different with the delalloc inode
flush, but we can see it as a subset of the delalloc inode flush, so we also handle
them by flush workers.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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The process of the ordered operations is similar to the delalloc inode flush, so
we handle them by flush workers.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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This patch introduce a new worker pool named "flush_workers", and if we
want to force all the inode with pending delalloc to the disks, we can
queue those inodes into the work queue of the worker pool, in this way,
those inodes will be flushed by multi-task.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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Dave gave me an image of a very full file system that would abort the
transaction because it ran out of space while committing the transaction.
This is because we would think there was plenty of room to create a snapshot
even though the global reserve was not full. This happens because we
calculate the global reserve size before we unpin any space, so after we
unpin the space we allow reservations to occur even though we haven't
reserved all of the space for our global reserve. Fix this by adding to the
global reserve while unpinning in order to make sure we always have enough
space to do our work. With this patch we no longer end up with an aborted
transaction, we return ENOSPC properly to the person trying to create the
snapshot. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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'disk_key' is not used at all.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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The argument 'tree_mod_log' is not necessary since all of callers enable it.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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Since we don't use MOD_LOG_KEY_REMOVE_WHILE_MOVING to add nritems
during rewinding, we should insert a MOD_LOG_KEY_REMOVE operation first.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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Key MOD_LOG_KEY_REMOVE_WHILE_MOVING means that we're doing memmove inside
an extent buffer node, and the node's number of items remains unchanged
(unless we are inserting a single pointer, but we have MOD_LOG_KEY_ADD for that).
So we don't need to increase node's number of items during rewinding,
otherwise we may get an node larger than leafsize and cause general protection
errors later.
Here is the details,
- If we do memory move for inserting a single pointer, we need to
add node's nritems by one, and we honor MOD_LOG_KEY_ADD for adding.
- If we do memory move for deleting a single pointer, we need to
decrease node's nritems by one, and we honor MOD_LOG_KEY_REMOVE for
deleting.
- If we do memory move for balance left/right, we need to decrease
node's nritems, and we honor MOD_LOG_KEY_REMOVE for balaning.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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When we find a bitmap free space entry, we may check the previous extent
entry covers the offset or not. But if we find this entry is also a bitmap
entry, we will continue to check the previous entry of the current one by
a while loop. It is unnecessary because it is impossible that the extent
entry which is in front of a bitmap entry can cover the offset of the entry
after that bitmap entry.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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Alex reported a problem where we were writing between chunks on a rbd
device. The thing is we do bio_add_page using logical offsets, but the
physical offset may be different. So when we map the bio now check to see
if the bio is still ok with the physical offset, and if it is not split the
bio up and redo the bio_add_page with the physical sector. This fixes the
problem for Alex and doesn't affect performance in the normal case. Thanks,
Reported-and-tested-by: Alex Elder <elder@inktank.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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