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Move tboot.h from asm to linux to fix the build errors of intel_txt
patch on non-X86 platforms. Remove the tboot code from generic code
init/main.c and kernel/cpu.c.
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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On 32 bits, we can have CONFIG_ACPI_SLEEP set without implying
CONFIG_X86_TRAMPOLINE. In that case, we simply do not need to mark
the trampoline as a MAC region.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Shane Wang <shane.wang@intel.com>
Cc: Joseph Cihula <joseph.cihula@intel.com>
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Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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S3 sleep requires special setup in tboot. However, the data
structures needed to do such setup are only available if
CONFIG_ACPI_SLEEP is enabled. Abstract them out as much as possible,
so we can have a single tboot_setup_sleep() which either is a proper
implementation or a stub which simply calls BUG().
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Shane Wang <shane.wang@intel.com>
Cc: Joseph Cihula <joseph.cihula@intel.com>
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arch/x86/kernel/tboot.c needs <asm/fixmap.h>. In most configurations
that ends up getting implicitly included, but not in all, causing
build failures in some configurations.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Joseph Cihula <joseph.cihula@intel.com>
Cc: Shane Wang <shane.wang@intel.com>
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The tboot module will DMA protect all of memory in order to ensure the that
kernel will be able to initialize without compromise (from DMA). Consequently,
the kernel must enable Intel Virtualization Technology for Directed I/O
(VT-d or Intel IOMMU) in order to replace this broad protection with the
appropriate page-granular protection. Otherwise DMA devices will be unable
to read or write from memory and the kernel will eventually panic.
Because runtime IOMMU support is configurable by command line options, this
patch will force it to be enabled regardless of the options specified, and will
log a message if it was required to force it on.
dmar.c | 7 +++++++
intel-iommu.c | 17 +++++++++++++++--
2 files changed, 22 insertions(+), 2 deletions(-)
Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
Signed-off-by: Shane Wang <shane.wang@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Support for graceful handling of sleep states (S3/S4/S5) after an Intel(R) TXT launch.
Without this patch, attempting to place the system in one of the ACPI sleep
states (S3/S4/S5) will cause the TXT hardware to treat this as an attack and
will cause a system reset, with memory locked. Not only may the subsequent
memory scrub take some time, but the platform will be unable to enter the
requested power state.
This patch calls back into the tboot so that it may properly and securely clean
up system state and clear the secrets-in-memory flag, after which it will place
the system into the requested sleep state using ACPI information passed by the kernel.
arch/x86/kernel/smpboot.c | 2 ++
drivers/acpi/acpica/hwsleep.c | 3 +++
kernel/cpu.c | 7 ++++++-
3 files changed, 11 insertions(+), 1 deletion(-)
Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Support for graceful handling of kernel reboots after an Intel(R) TXT launch.
Without this patch, attempting to reboot or halt the system will cause the
TXT hardware to lock memory upon system restart because the secrets-in-memory
flag that was set on launch was never cleared. This will in turn cause BIOS
to execute a TXT Authenticated Code Module (ACM) that will scrub all of memory
and then unlock it. Depending on the amount of memory in the system and its type,
this may take some time.
This patch creates a 1:1 address mapping to the tboot module and then calls back
into tboot so that it may properly and securely clean up system state and clear
the secrets-in-memory flag. When it has completed these steps, the tboot module
will reboot or halt the system.
arch/x86/kernel/reboot.c | 8 ++++++++
init/main.c | 3 +++
2 files changed, 11 insertions(+)
Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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This patch adds kernel configuration and boot support for Intel Trusted
Execution Technology (Intel TXT).
Intel's technology for safer computing, Intel Trusted Execution
Technology (Intel TXT), defines platform-level enhancements that
provide the building blocks for creating trusted platforms.
Intel TXT was formerly known by the code name LaGrande Technology (LT).
Intel TXT in Brief:
o Provides dynamic root of trust for measurement (DRTM)
o Data protection in case of improper shutdown
o Measurement and verification of launched environment
Intel TXT is part of the vPro(TM) brand and is also available some
non-vPro systems. It is currently available on desktop systems based on
the Q35, X38, Q45, and Q43 Express chipsets (e.g. Dell Optiplex 755, HP
dc7800, etc.) and mobile systems based on the GM45, PM45, and GS45
Express chipsets.
For more information, see http://www.intel.com/technology/security/.
This site also has a link to the Intel TXT MLE Developers Manual, which
has been updated for the new released platforms.
A much more complete description of how these patches support TXT, how to
configure a system for it, etc. is in the Documentation/intel_txt.txt file
in this patch.
This patch provides the TXT support routines for complete functionality,
documentation for TXT support and for the changes to the boot_params structure,
and boot detection of a TXT launch. Attempts to shutdown (reboot, Sx) the system
will result in platform resets; subsequent patches will support these shutdown modes
properly.
Documentation/intel_txt.txt | 210 +++++++++++++++++++++
Documentation/x86/zero-page.txt | 1
arch/x86/include/asm/bootparam.h | 3
arch/x86/include/asm/fixmap.h | 3
arch/x86/include/asm/tboot.h | 197 ++++++++++++++++++++
arch/x86/kernel/Makefile | 1
arch/x86/kernel/setup.c | 4
arch/x86/kernel/tboot.c | 379 +++++++++++++++++++++++++++++++++++++++
security/Kconfig | 30 +++
9 files changed, 827 insertions(+), 1 deletion(-)
Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: Gang Wei <gang.wei@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
vmlinux.lds.h: restructure BSS linker script macros
kconfig: initialize the screen before using curses(3) functions
kconfig: variable argument lists needs `stdarg.h'
kbuild, deb-pkg: fix install scripts for posix sh
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: Fix incorrect parameters to v9fs_file_readn.
9p: Possible regression in p9_client_stat
9p: default 9p transport module fix
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* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: free nativeFileSystem field before allocating a new one
[CIFS] Distinguish posix opens and mkdirs from legacy mkdirs in stats
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git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (21 commits)
Blackfin: define HARDIRQ_BITS again for now
arch/blackfin: Add kmalloc NULL tests
Blackfin: add CPLB entries for Core B on-chip L1 SRAM regions
Blackfin: work around anomaly 05000189
Blackfin: drop per-cpu loops_per_jiffy tracking
Blackfin: fix bugs in GPIO resume code
Blackfin: bf537-stamp: fix irq decl for AD7142
Blackfin: fix handling of IPEND in interrupt context save
Blackfin: drop duplicate runtime checking of anomaly 05000448
Blackfin: fix incomplete renaming of the bfin-twi-lcd driver
Blackfin: fix wrong CTS inversion
Blackfin: update handling of anomaly 364 (wrong rev id in BF527-0.1)
Blackfin: fix early_dma_memcpy() handling of busy channels
Blackfin: handle BF561 Core B memory regions better when SMP=n
Blackfin: fix miscompilation in lshrdi3
Blackfin: fix silent crash when no uClinux MTD filesystem exists
Blackfin: restore exception banner when dumping crash info
Blackfin: work around anomaly 05000281
Blackfin: update anomaly lists to match latest sheets/usage
Blackfin: drop dead flash_probe call
...
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Standard data flow for MMC/SD/SDIO cards requires that the mvsdio
controller be set for big endian operation. This is causing problems
with buffers which length is not a multiple of 4 bytes as the last
partial word doesn't get shifted all the way and stored properly in
memory. Let's compensate for this.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
CC: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The Blackfin serial headers were inverting the CTS value leading to wrong
handling of the CTS line which broke CTS/RTS handling completely.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This function does not have an error return and returning an error is
instead interpreted as having a lot of pending bytes.
Reported by Jeff Harris who provided a list of some of the remaining
offenders.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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If spin_lock_irqsave is called twice in a row with the same second
argument, the interrupt state at the point of the second call overwrites
the value saved by the first call. Indeed, the second call does not
need to save the interrupt state, so it is changed to a simple
spin_lock.
The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
expression lock1,lock2;
expression flags;
@@
*spin_lock_irqsave(lock1,flags)
... when != flags
*spin_lock_irqsave(lock2,flags)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The buffer for the consoles are unconditionally allocated at con_init()
time, which miss the creation of the vcs(a) devices.
Since 2.6.30 (commit 4995f8ef9d3aac72745e12419d7fbaa8d01b1d81, 'vcs:
hook sysfs devices into object lifetime instead of "binding"' to be
exact) these devices are no longer created at open() and removed on
close(), but controlled by the lifetime of the buffers.
Reported-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
Tested-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
Cc: stable@kernel.org
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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...otherwise, we'll leak this memory if we have to reconnect (e.g. after
network failure).
Signed-off-by: Jeff Layton <jlayton@redhat.com>
CC: Stable <stable@kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: Realview & Versatile: Fix i2c_board_info definitions
[ARM] 5608/1: Updated U300 defconfig
[ARM] 5606/1: Fix ep93xx watchdog driver headers
[ARM] 5594/1: Correct U300 VIC init PM setting
[ARM] 5595/1: ep93xx: missing header in dma-m2p.c
[ARM] Kirkwood: Correct header define
[ARM] pxa: fix ULPI_{DIR,NXT,STP} MFP defines
backlight: fix pwm_bl.c to notify platform code when suspending
[ARM] pxa: use kzalloc() in pxa_init_gpio_chip()
[ARM] pxa: correct I2CPWR clock for pxa3xx
pxamci: correct DMA flow control
ARM: add support for the EET board, based on the i.MX31 pcm037 module
pcm037: add MT9T031 camera support
Armadillo 500 add NAND flash device support (resend).
ARM MXC: Armadillo 500 add NOR flash device support (resend).
mx31: remove duplicated #include
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Fix i2c_board_info definitions - we were defining the 'type' field
of these structures twice since the first argument of I2C_BOARD_INFO
sets this field. Move the second definition into I2C_BOARD_INFO().
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ben Dooks <ben-linux@fluff.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: Move a dereference below a NULL test
fb/intelfb: conflict with DRM_I915 and hide by default
drm/ttm: fix misplaced parentheses
drm/via: Fix vblank IRQ on VIA hardware.
drm: drm_gem, check kzalloc retval
drm: drm_debugfs, check kmalloc retval
drm/radeon: add some missing pci ids
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The BSS section macros in vmlinux.lds.h currently place the .sbss
input section outside the bounds of [__bss_start, __bss_end]. On all
architectures except for microblaze that handle both .sbss and
__bss_start/__bss_end, this is wrong: the .sbss input section is
within the range [__bss_start, __bss_end]. Relatedly, the example
code at the top of the file actually has __bss_start/__bss_end defined
twice; I believe the right fix here is to define them in the
BSS_SECTION macro but not in the BSS macro.
Another problem with the current macros is that several
architectures have an ALIGN(4) or some other small number just before
__bss_stop in their linker scripts. The BSS_SECTION macro currently
hardcodes this to 4; while it should really be an argument. It also
ignores its sbss_align argument; fix that.
mn10300 is the only user at present of any of the macros touched by
this patch. It looks like mn10300 actually was incorrectly converted
to use the new BSS() macro (the alignment of 4 prior to conversion was
a __bss_stop alignment, but the argument to the BSS macro is a start
alignment). So fix this as well.
I'd like acks from Sam and David on this one. Also CCing Paul, since
he has a patch from me which will need to be updated to use
BSS_SECTION(0, PAGE_SIZE, 4) once this gets merged.
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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This is needed on non ncurses based implementation to get a properly
initialized `stdscr' in main().
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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Fix build on non GNU based platforms.
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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bash versus dash and posh disagree on expanding $@ within double quotes:
export x="$@"
see http://bugs.debian.org/381091 for details
just use the arglist with $*.
dpkg: error processing linux-image-2.6.31-rc1_2.6.31-rc1-18_i386.deb (--install):
subprocess pre-installation script returned error exit status 2
export: 6: 2.6.31-rc1-18: bad variable name
fixes http://bugzilla.kernel.org/show_bug.cgi?id=13567
seen on Ubuntu as there dash is the default sh,
versus bash on Debian.
Reported-by: Pauli <suokkos@gmail.com>
Cc: Frans Pop <elendil@planet.nl>
Signed-off-by: maximilian attems <max@stro.at>
Acked-By: Andres Salomon <dilinger@collabora.co.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/fyu/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/fyu/linux-2.6:
Revert "Neither asm/types.h nor linux/types.h is required for arch/ia64/include/asm/fpu.h"
Add dma_debug_init() for ia64
Fix ia64 compilation IS_ERR and PTE_ERR errors.
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
x86/pci: insert ioapic resource before assigning unassigned resources
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: riptide - proper handling of pci_register_driver for joystick
sound: usb-audio: add workaround for Blue Microphones devices
ALSA: hda_intel: more strict alc880_parse_auto_config dig_nid checking
ASoC: Fix NULL pointer dereference in __pxa2xx_pcm_hw_free
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* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
virtio_net: Sync header with qemu
virtio-pci: correctly unregister root device on error
virtio_blk: ioctl return value fix
virtio_blk: don't bounce highmem requests
lguest: restrict CPUID to avoid perf counter wrmsr
lguest: remove unnecessary forward struct declaration
lguest: fix journey
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
tracing/function: Fix the return value of ftrace_trace_onoff_callback()
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Whoops.. fortunately not many people use this yet.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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arch/ia64/include/asm/fpu.h"
asm/fpu.h uses the __IA64_UL macro which is declared in asm/types.h, so
this include is really required. Without it, GNU libc fails to build.
This reverts commit 2678c07b07ac2076675e5d57653bdf02e9af1950.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
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The commit 9916219579d078c80377dd3988c2cc213536d868 was supposed to
add CONFIG_DMA_API_DEBUG support to IA64 however I forgot to add
dma_debug_init().
Signed-off-by: fujita <fujita@tulip.osrg.net>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
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When building ia64 kernel with CONFIG_XEN_SYS_HYPERVISOR, compiler reports
errors:
drivers/xen/sys-hypervisor.c: In function ‘uuid_show’:
drivers/xen/sys-hypervisor.c:125: error: implicit declaration of function ‘IS_ERR’
drivers/xen/sys-hypervisor.c:126: error: implicit declaration of function ‘PTR_ERR’
This patch fixes the errors.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Isaku Yamahata <yamahata@valinux.co.jp>
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Removed the LBD support that isn't of any use right now at least,
then remove remnants of the TCM config flags that somehow crept
in by mistake (not yet merged patch for 2.6.32) and then the usual
defconfig noise from updated menus.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Fix a number of build errors in the ep93xx watchdog driver due
to missing io.h
Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Qemu added support for a few extra RX modes that Linux doesn't
currently make use of. Sync the headers to maintain consistency.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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If pci_register_driver() fails we're incorrectly unregistering the root
device with device_unregister() rather than root_device_unregister().
Reported-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Block driver ioctl methods must return ENOTTY and not -ENOIOCTLCMD if
they expect the block layer to handle generic ioctls.
This triggered a BLKROSET failure in xfsqa #200.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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By default a block driver bounces highmem requests, but virtio-blk is
perfectly fine with any request that fit into it's 64 bit addressing scheme,
mapped in the kernel virtual space or not.
Besides improving performance on highmem systems this also makes the
reproducible oops in __bounce_end_io go away (but hiding the real cause).
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Avoid the following:
[ 0.012093] WARNING: at arch/x86/kernel/apic/apic.c:249 native_apic_write_dummy+0x2f/0x40()
Rather than chase each new cpuid-detected feature, just lie about the highest
valid CPUID so this code is never run.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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While fixing lg.h to drop the fwd declaration, I noticed
there's another one ;)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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fix: "make Guest" was complaining about duplicated G:032
Signed-off-by: Matias Zabaljauregui <zabaljauregui@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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ftrace_trace_onoff_callback() will return an error even if we do the
right operation, for example:
# echo _spin_*:traceon:10 > set_ftrace_filter
-bash: echo: write error: Invalid argument
# cat set_ftrace_filter
#### all functions enabled ####
_spin_trylock_bh:traceon:count=10
_spin_unlock_irq:traceon:count=10
_spin_unlock_bh:traceon:count=10
_spin_lock_irq:traceon:count=10
_spin_unlock:traceon:count=10
_spin_trylock:traceon:count=10
_spin_unlock_irqrestore:traceon:count=10
_spin_lock_irqsave:traceon:count=10
_spin_lock_bh:traceon:count=10
_spin_lock:traceon:count=10
We want to set _spin_*:traceon:10 to set_ftrace_filter, it complains
with "Invalid argument", but the operation is successful.
This is because ftrace_process_regex() returns the number of functions that
matched the pattern. If the number is not 0, this value is returned
by ftrace_regex_write() whereas we want to return the number of bytes
virtually written.
Also the file offset pointer is not updated in this case.
If the number of matched functions is lower than the number of bytes written
by the user, this results to a reprocessing of the string given by the user with
a lower size, leading to a malformed ftrace regex and then a -EINVAL returned.
So, this patch fixes it by returning 0 if no error occured.
The fix also applies on 2.6.30
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: stable@kernel.org
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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The default values of HARDIRQ_BITS and PREEMPT_BITS in common code leads to
build failure:
In file included from include/linux/interrupt.h:12,
from include/linux/kernel_stat.h:8,
from arch/blackfin/kernel/asm-offsets.c:32:
include/linux/hardirq.h:66:2: error: #error PREEMPT_ACTIVE is too low!
So until that gets resolved, just declare our own default value again.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched:
sched: Fix bug in SCHED_IDLE interaction with group scheduling
sched: Fix rt_rq->pushable_tasks initialization in init_rt_rq()
sched: Reset sched stats on fork()
sched_rt: Fix overload bug on rt group scheduling
sched: Documentation/sched-rt-group: Fix style issues & bump version
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
timer stats: fix quick check optimization
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Fix another bug in move of altivec code to vector.S
powerpc: Fix booke user_disable_single_step()
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