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Pull audit updates from Eric Paris:
"So this change across a whole bunch of arches really solves one basic
problem. We want to audit when seccomp is killing a process. seccomp
hooks in before the audit syscall entry code. audit_syscall_entry
took as an argument the arch of the given syscall. Since the arch is
part of what makes a syscall number meaningful it's an important part
of the record, but it isn't available when seccomp shoots the
syscall...
For most arch's we have a better way to get the arch (syscall_get_arch)
So the solution was two fold: Implement syscall_get_arch() everywhere
there is audit which didn't have it. Use syscall_get_arch() in the
seccomp audit code. Having syscall_get_arch() everywhere meant it was
a useless flag on the stack and we could get rid of it for the typical
syscall entry.
The other changes inside the audit system aren't grand, fixed some
records that had invalid spaces. Better locking around the task comm
field. Removing some dead functions and structs. Make some things
static. Really minor stuff"
* git://git.infradead.org/users/eparis/audit: (31 commits)
audit: rename audit_log_remove_rule to disambiguate for trees
audit: cull redundancy in audit_rule_change
audit: WARN if audit_rule_change called illegally
audit: put rule existence check in canonical order
next: openrisc: Fix build
audit: get comm using lock to avoid race in string printing
audit: remove open_arg() function that is never used
audit: correct AUDIT_GET_FEATURE return message type
audit: set nlmsg_len for multicast messages.
audit: use union for audit_field values since they are mutually exclusive
audit: invalid op= values for rules
audit: use atomic_t to simplify audit_serial()
kernel/audit.c: use ARRAY_SIZE instead of sizeof/sizeof[0]
audit: reduce scope of audit_log_fcaps
audit: reduce scope of audit_net_id
audit: arm64: Remove the audit arch argument to audit_syscall_entry
arm64: audit: Add audit hook in syscall_trace_enter/exit()
audit: x86: drop arch from __audit_syscall_entry() interface
sparc: implement is_32bit_task
sparc: properly conditionalize use of TIF_32BIT
...
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openrisc:defconfig fails to build in next-20140926 with the following error.
In file included from arch/openrisc/kernel/signal.c:31:0:
./arch/openrisc/include/asm/syscall.h: In function 'syscall_get_arch':
./arch/openrisc/include/asm/syscall.h:77:9: error: 'EM_OPENRISC' undeclared
Fix by moving EM_OPENRISC to include/uapi/linux/elf-em.h.
Fixes: ce5d112827e5 ("ARCH: AUDIT: implement syscall_get_arch for all arches")
Cc: Eric Paris <eparis@redhat.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Eric Paris <eparis@redhat.com>
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Since only one of val, uid, gid and lsm* are used at any given time, combine
them to reduce the size of the struct audit_field.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
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Since the arch is found locally in __audit_syscall_entry(), there is no need to
pass it in as a parameter. Delete it from the parameter list.
x86* was the only arch to call __audit_syscall_entry() directly and did so from
assembly code.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-audit@redhat.com
Signed-off-by: Eric Paris <eparis@redhat.com>
---
As this patch relies on changes in the audit tree, I think it
appropriate to send it through my tree rather than the x86 tree.
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avr32 does not have an asm/syscall.h file. We need the
syscall_get_arch() definition from that file for all arch's which
support CONFIG_AUDITSYSCALL. Obviously avr32 is not one of those
arch's. Move the include inside the CONFIG_AUDITSYSCALL such that we
only do the include if we need the results.
When the syscall_get_arch() call is moved inside __audit_syscall_entry()
this include can be dropped entirely. But that is going to require some
assembly changes on x86* in a patch that is not ready for the tree...
Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
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We have a function where the arch can be queried, syscall_get_arch().
So rather than have every single piece of arch specific code use and/or
duplicate syscall_get_arch(), just have the audit code use the
syscall_get_arch() code.
Based-on-patch-by: Richard Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-ia64@vger.kernel.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux-mips@linux-mips.org
Cc: linux@lists.openrisc.net
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: linux-xtensa@linux-xtensa.org
Cc: x86@kernel.org
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For all arches which support audit implement syscall_get_arch()
They are all pretty easy and straight forward, stolen from how the call
to audit_syscall_entry() determines the arch.
Based-on-patch-by: Richard Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Cc: linux-ia64@vger.kernel.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux-mips@linux-mips.org
Cc: linux@lists.openrisc.net
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
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syscall_get_arch() used to take a task as a argument. It now uses
current. Fix the doc text.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
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The kernel only uses struct audit_rule_data. We dropped support for
struct audit_rule a long time ago. Drop the definition in the header
file.
Signed-off-by: Eric Paris <eparis@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"Highlights from the I2C subsystem for 3.18:
- new drivers for Axxia AM55xx, and Hisilicon hix5hd2 SoC.
- designware driver gained AMD support, exynos gained exynos7 support
The rest is usual driver stuff. Hopefully no lowlights this time"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i801: Add Device IDs for Intel Sunrise Point PCH
i2c: hix5hd2: add i2c controller driver
i2c-imx: Disable the clock on probe failure
i2c: designware: Add support for AMD I2C controller
i2c: designware: Rework probe() to get clock a bit later
i2c: designware: Default to fast mode in case of ACPI
i2c: axxia: Add I2C driver for AXM55xx
i2c: exynos: add support for HSI2C module on Exynos7
i2c: mxs: detect No Slave Ack on SELECT in PIO mode
i2c: cros_ec: Remove EC_I2C_FLAG_10BIT
i2c: cros-ec-tunnel: Add of match table
i2c: rcar: remove sign-compare flaw
i2c: ismt: Use minimum descriptor size
i2c: imx: Add arbitration lost check
i2c: rk3x: Remove unlikely() annotations
i2c: rcar: check for no IRQ in rcar_i2c_irq()
i2c: rcar: make rcar_i2c_prepare_msg() *void*
i2c: rcar: simplify check for last message
i2c: designware: add support of platform data to set I2C mode
i2c: designware: add support of I2C standard mode
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In <https://lkml.org/lkml/2014/6/10/265> pointed out that the 10-bit
flag in the cros_ec_tunnel was useless. It went into a 16-bit flags
field but was defined at (1 << 16).
Since we have no 10-bit i2c devices on the other side of the tunnel on
any known devices this was never a problem. Until we do it makes
sense to remove this code. On the EC side the code to handle this
flag was removed in <https://chromium-review.googlesource.com/204162>.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Use the platform data to set the clk_freq when there is no DT configuration
available. The clk_freq in turn will determine the I2C speed mode.
In Quark, there is currently no other configuration mechanism other than
board files.
Signed-off-by: Raymond Tan <raymond.tan@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hock Leong Kweh <hock.leong.kweh@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband/RDMA updates from Roland Dreier:
- large set of iSER initiator improvements
- hardware driver fixes for cxgb4, mlx5 and ocrdma
- small fixes to core midlayer
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (47 commits)
RDMA/cxgb4: Fix ntuple calculation for ipv6 and remove duplicate line
RDMA/cxgb4: Add missing neigh_release in find_route
RDMA/cxgb4: Take IPv6 into account for best_mtu and set_emss
RDMA/cxgb4: Make c4iw_wr_log_size_order static
IB/core: Fix XRC race condition in ib_uverbs_open_qp
IB/core: Clear AH attr variable to prevent garbage data
RDMA/ocrdma: Save the bit environment, spare unncessary parenthesis
RDMA/ocrdma: The kernel has a perfectly good BIT() macro - use it
RDMA/ocrdma: Don't memset() buffers we just allocated with kzalloc()
RDMA/ocrdma: Remove a unused-label warning
RDMA/ocrdma: Convert kernel VA to PA for mmap in user
RDMA/ocrdma: Get vlan tag from ib_qp_attrs
RDMA/ocrdma: Add default GID at index 0
IB/mlx5, iser, isert: Add Signature API additions
Target/iser: Centralize ib_sig_domain setting
IB/iser: Centralize ib_sig_domain settings
IB/mlx5: Use extended internal signature layout
IB/iser: Set IP_CSUM as default guard type
IB/iser: Remove redundant assignment
IB/mlx5: Use enumerations for PI copy mask
...
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Expose more signature setting parameters. We modify the signature API
to allow usage of some new execution parameters relevant to data
integrity feature.
This patch modifies ib_sig_domain structure by:
- Deprecate DIF type in signature API (operation will
be determined by the parameters alone, no DIF type awareness)
- Add APPTAG check bitmask (for input domain)
- Add REFTAG remap (increment) flag for each domain
- Add APPTAG/REFTAG escape options for each domain
The mlx5 driver is modified to follow the new parameters in HW
signature setup.
At the moment the callers (iser/isert) hard-code new parameters (by
DIF type). In the future, callers will retrieve them from the scsi
command structure.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Rather than using the basic BSF layout which utilizes a pre-configured
signature settings (sufficient for current DIF implementation), we use
the extended BSF layout to expose advanced signature settings. These
settings will also be exposed to the user later.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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In case input and output space parameters match, we can use a copy
mask from input and output space. Use enums for those.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Pull networking fixes from David Miller:
"A quick batch of bug fixes:
1) Fix build with IPV6 disabled, from Eric Dumazet.
2) Several more cases of caching SKB data pointers across calls to
pskb_may_pull(), thus referencing potentially free'd memory. From
Li RongQing.
3) DSA phy code tests operation presence improperly, instead of going:
if (x->ops->foo)
r = x->ops->foo(args);
it was going:
if (x->ops->foo(args))
r = x->ops->foo(args);
Fix from Andew Lunn"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
Net: DSA: Fix checking for get_phy_flags function
ipv6: fix a potential use after free in sit.c
ipv6: fix a potential use after free in ip6_offload.c
ipv4: fix a potential use after free in gre_offload.c
tcp: fix build error if IPv6 is not enabled
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$ make M=net/ipv4
CC net/ipv4/route.o
In file included from net/ipv4/route.c:102:0:
include/net/tcp.h: In function ‘tcp_v6_iif’:
include/net/tcp.h:738:32: error: ‘union <anonymous>’ has no member named ‘h6’
return TCP_SKB_CB(skb)->header.h6.iif;
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 870c3151382c ("ipv6: introduce tcp_v6_iif()")
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull slave-dmaengine updates from Vinod Koul:
"For dmaengine contributions we have:
- designware cleanup by Andy
- my series moving device_control users to dmanegine_xxx APIs for
later removal of device_control API
- minor fixes spread over drivers mainly mv_xor, pl330, mmp, imx-sdma
etc"
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (60 commits)
serial: atmel: add missing dmaengine header
dmaengine: remove FSLDMA_EXTERNAL_START
dmaengine: freescale: remove FSLDMA_EXTERNAL_START control method
carma-fpga: move to fsl_dma_external_start()
carma-fpga: use dmaengine_xxx() API
dmaengine: freescale: add and export fsl_dma_external_start()
dmaengine: add dmaengine_prep_dma_sg() helper
video: mx3fb: use dmaengine_terminate_all() API
serial: sh-sci: use dmaengine_terminate_all() API
net: ks8842: use dmaengine_terminate_all() API
mtd: sh_flctl: use dmaengine_terminate_all() API
mtd: fsmc_nand: use dmaengine_terminate_all() API
V4L2: mx3_camer: use dmaengine_pause() API
dmaengine: coh901318: use dmaengine_terminate_all() API
pata_arasan_cf: use dmaengine_terminate_all() API
dmaengine: edma: check for echan->edesc => NULL in edma_dma_pause()
dmaengine: dw: export probe()/remove() and Co to users
dmaengine: dw: enable and disable controller when needed
dmaengine: dw: always export dw_dma_{en,dis}able
dmaengine: dw: introduce dw_dma_on() helper
...
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as users have been converted, so no need of this custom method
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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The freescale driver uses custom device control FSLDMA_EXTERNAL_START to
put the controller in external start mode.
Since we are planning to deprecate the device control, move this to exported
API. Subsequent patches will remove the FSLDMA_EXTERNAL_START
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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This was only prep API which didnt have an helper
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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The driver library functions can be used directly by the compound devices such
as ADSP or serial driver where DesignWare DMA IP is privately attached to the
main hardware.
Instead of creating a new platform device leaf they may call dw_dma_probe()
with given struct dw_dma_chip directly and make sure that the main device is
DMA capable.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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The introduced include/linux/dma/dw.h is going to contain the private
extensions and structures which are shared for dw_dmac users in the kernel.
Meanwhile include/linux/platform_data/dma-dw.h keeps only platform related data
types and definitions.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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Since we don't allow user to set registers directly through private slave
configuration we may move definitions to the regs.h because they are not used
anywhere except core.c part.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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The direction passed to the device_prep_slave_sg, device_prep_dma_cyclic
or device_prep_interleaved_dma (through struct dma_interleaved_template)
should be used instead.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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That field has been deprecated in favour of getting the necessary
information from ACPI/DT.
However, we still need to deal systems that are PCI only (no ACPI to back
up). In order to support such systems, we allow the DMA filter function and
its corresponding parameter via pxa2xx_spi_master platform data. Then when
the pxa2xx_spi_dma_setup() doesn't find the channel via ACPI, it falls back
to use the given filter function.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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Instead of exposing the possibility to set DMA registers CFG_HI and CFG_LO
strict user to provide handshake interfaces explicitly.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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There is a common storage for platform data related structures and definitions
inside kernel source tree. The patch moves file from include/linux to
include/linux/platform_data and renames it acoordingly. The users are also
updated.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
[For the arch/avr32/.* and .*sound/atmel.*]
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
Pull fbdev updates from Tomi Valkeinen:
- new 6x10 font
- various small fixes and cleanups
* tag 'fbdev-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (30 commits)
fonts: Add 6x10 font
videomode: provide dummy inline functions for !CONFIG_OF
video/atmel_lcdfb: Introduce regulator support
fbdev: sh_mobile_hdmi: Re-init regs before irq re-enable on resume
framebuffer: fix screen corruption when copying
framebuffer: fix border color
arm, fbdev, omap2, LLVMLinux: Remove nested function from omapfb
arm, fbdev, omap2, LLVMLinux: Remove nested function from omap2 dss
video: fbdev: valkyriefb.c: use container_of to resolve fb_info_valkyrie from fb_info
video: fbdev: pxafb.c: use container_of to resolve pxafb_info/layer from fb_info
video: fbdev: cyber2000fb.c: use container_of to resolve cfb_info from fb_info
video: fbdev: controlfb.c: use container_of to resolve fb_info_control from fb_info
video: fbdev: sa1100fb.c: use container_of to resolve sa1100fb_info from fb_info
video: fbdev: stifb.c: use container_of to resolve stifb_info from fb_info
video: fbdev: sis: sis_main.c: Cleaning up missing null-terminate in conjunction with strncpy
video: valkyriefb: Fix unused variable warning in set_valkyrie_clock()
video: fbdev: use %*ph specifier to dump small buffers
video: mx3fb: always enable BACKLIGHT_LCD_SUPPORT
video: fbdev: au1200fb: delete double assignment
video: fbdev: sis: delete double assignment
...
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This font is suitable for framebuffer consoles on devices with a
320x240 screen, to get a reasonable number of characters (53x24) that
are still at a readable size.
The font is derived from the existing 6x11 font, but gets 3 extra
lines without sacrificing readability. Also I redesigned a some glyhps
so they are more distinct and better fill the available space.
Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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If CONFIG_OF is disabled but we build any driver that tries to
use of_get_display_timing, we get this link error:
ERROR: "of_get_display_timing" [drivers/gpu/drm/rcar-du/rcar-du-drm.ko] undefined!
This adds an empty inline function as an alternative, to avoid changing
each driver using this function when we want to build them without
CONFIG_OF.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm
Pull second batch of changes for KVM/{arm,arm64} from Marc Zyngier:
"The most obvious thing is the sizeable MMU changes to support 48bit
VAs on arm64.
Summary:
- support for 48bit IPA and VA (EL2)
- a number of fixes for devices mapped into guests
- yet another VGIC fix for BE
- a fix for CPU hotplug
- a few compile fixes (disabled VGIC, strict mm checks)"
[ I'm pulling directly from Marc at the request of Paolo Bonzini, whose
backpack was stolen at Düsseldorf airport and will do new keys and
rebuild his web of trust. - Linus ]
* tag 'kvm-arm-for-3.18-take-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm:
arm/arm64: KVM: Fix BE accesses to GICv2 EISR and ELRSR regs
arm: kvm: STRICT_MM_TYPECHECKS fix for user_mem_abort
arm/arm64: KVM: Ensure memslots are within KVM_PHYS_SIZE
arm64: KVM: Implement 48 VA support for KVM EL2 and Stage-2
arm/arm64: KVM: map MMIO regions at creation time
arm64: kvm: define PAGE_S2_DEVICE as read-only by default
ARM: kvm: define PAGE_S2_DEVICE as read-only by default
arm/arm64: KVM: add 'writable' parameter to kvm_phys_addr_ioremap
arm/arm64: KVM: fix potential NULL dereference in user_mem_abort()
arm/arm64: KVM: use __GFP_ZERO not memset() to get zeroed pages
ARM: KVM: fix vgic-disabled build
arm: kvm: fix CPU hotplug
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The EIRSR and ELRSR registers are 32-bit registers on GICv2, and we
store these as an array of two such registers on the vgic vcpu struct.
However, we access them as a single 64-bit value or as a bitmap pointer
in the generic vgic code, which breaks BE support.
Instead, store them as u64 values on the vgic structure and do the
word-swapping in the assembly code, which already handles the byte order
for BE systems.
Tested-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
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The vgic code can be disabled in Kconfig and there are dummy implementations
of most of the provided API functions for the disabled case.
However, the newly introduced kvm_vgic_destroy/kvm_vgic_vcpu_destroy
functions are lacking those dummies, resulting in this build error:
arch/arm/kvm/arm.c: In function 'kvm_arch_destroy_vm':
arch/arm/kvm/arm.c:165:2: error: implicit declaration of function 'kvm_vgic_destroy' [-Werror=implicit-function-declaration]
kvm_vgic_destroy(kvm);
^
arch/arm/kvm/arm.c: In function 'kvm_arch_vcpu_free':
arch/arm/kvm/arm.c:248:2: error: implicit declaration of function 'kvm_vgic_vcpu_destroy' [-Werror=implicit-function-declaration]
kvm_vgic_vcpu_destroy(vcpu);
^
This adds two inline helpers to get it to build again in this configuration.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: c1bfb577add ("arm/arm64: KVM: vgic: switch to dynamic allocation")
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
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Pull MIPS updates from Ralf Baechle:
"This is the MIPS pull request for the next kernel:
- Zubair's patch series adds CMA support for MIPS. Doing so it also
touches ARM64 and x86.
- remove the last instance of IRQF_DISABLED from arch/mips
- updates to two of the MIPS defconfig files.
- cleanup of how cache coherency bits are handled on MIPS and
implement support for write-combining.
- platform upgrades for Alchemy
- move MIPS DTS files to arch/mips/boot/dts/"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (24 commits)
MIPS: ralink: remove deprecated IRQF_DISABLED
MIPS: pgtable.h: Implement the pgprot_writecombine function for MIPS
MIPS: cpu-probe: Set the write-combine CCA value on per core basis
MIPS: pgtable-bits: Define the CCA bit for WC writes on Ingenic cores
MIPS: pgtable-bits: Move the CCA bits out of the core's ifdef blocks
MIPS: DMA: Add cma support
x86: use generic dma-contiguous.h
arm64: use generic dma-contiguous.h
asm-generic: Add dma-contiguous.h
MIPS: BPF: Add new emit_long_instr macro
MIPS: ralink: Move device-trees to arch/mips/boot/dts/
MIPS: Netlogic: Move device-trees to arch/mips/boot/dts/
MIPS: sead3: Move device-trees to arch/mips/boot/dts/
MIPS: Lantiq: Move device-trees to arch/mips/boot/dts/
MIPS: Octeon: Move device-trees to arch/mips/boot/dts/
MIPS: Add support for building device-tree binaries
MIPS: Create common infrastructure for building built-in device-trees
MIPS: SEAD3: Enable DEVTMPFS
MIPS: SEAD3: Regenerate defconfigs
MIPS: Alchemy: DB1300: Add touch penirq support
...
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This header is used by arm64 and x86 individually.
Adding to asm-generic to avoid further code repetition while adding cma
to mips.
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: catalin.marinas@arm.com
Cc: will.deacon@arm.com
Cc: tglx@linutronix.de
Cc: mingo@redhat.com
Cc: hpa@zytor.com
Cc: arnd@arndb.de
Cc: gregkh@linuxfoundation.org
Cc: m.szyprowski@samsung.com
Cc: x86@kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-arch@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7357/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Pull NFS client updates from Trond Myklebust:
"Highlights include:
Stable fixes:
- fix an uninitialised pointer Oops in the writeback error path
- fix a bogus warning (and early exit from the loop) in nfs_generic_pgio()
Features:
- Add NFSv4.2 SEEK feature and client support for lseek(SEEK_HOLE/SEEK_DATA)
Other fixes:
- pnfs: replace broken pnfs_put_lseg_async
- Remove dead prototype for nfs4_insert_deviceid_node"
* tag 'nfs-for-3.18-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS: Fix a bogus warning in nfs_generic_pgio
NFS: Fix an uninitialised pointer Oops in the writeback error path
NFSv4.1/pnfs: replace broken pnfs_put_lseg_async
NFSv4: Remove dead prototype for nfs4_insert_deviceid_node()
NFS: Implement SEEK
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Merge NFSv4.2 client SEEK implementation from Anna
* client-4.2: (55 commits)
NFS: Implement SEEK
NFSD: Implement SEEK
NFSD: Add generic v4.2 infrastructure
svcrdma: advertise the correct max payload
nfsd: introduce nfsd4_callback_ops
nfsd: split nfsd4_callback initialization and use
nfsd: introduce a generic nfsd4_cb
nfsd: remove nfsd4_callback.cb_op
nfsd: do not clear rpc_resp in nfsd4_cb_done_sequence
nfsd: fix nfsd4_cb_recall_done error handling
nfsd4: clarify how grace period ends
nfsd4: stop grace_time update at end of grace period
nfsd: skip subsequent UMH "create" operations after the first one for v4.0 clients
nfsd: set and test NFSD4_CLIENT_STABLE bit to reduce nfsdcltrack upcalls
nfsd: serialize nfsdcltrack upcalls for a particular client
nfsd: pass extra info in env vars to upcalls to allow for early grace period end
nfsd: add a v4_end_grace file to /proc/fs/nfsd
lockd: add a /proc/fs/lockd/nlm_end_grace file
nfsd: reject reclaim request when client has already sent RECLAIM_COMPLETE
nfsd: remove redundant boot_time parm from grace_done client tracking op
...
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The SEEK operation is used when an application makes an lseek call with
either the SEEK_HOLE or SEEK_DATA flags set. I fall back on
nfs_file_llseek() if the server does not have SEEK support.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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- Pull in patch 'NFSD: Implement SEEK' from Bruce's nfsd-next tree
for dependencies.
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device-mapper updates from Mike Snitzer:
"I rebased the DM tree ontop of linux-block.git's 'for-3.18/core' at
the beginning of October because DM core now depends on the newly
introduced bioset_create_nobvec() interface.
Summary:
- fix DM's long-standing excessive use of memory by leveraging the
new bioset_create_nobvec() interface when creating the DM's bioset
- fix a few bugs in dm-bufio and dm-log-userspace
- add DM core support for a DM multipath use-case that requires
loading DM tables that contain devices that have failed (by
allowing active and inactive DM tables to share dm_devs)
- add discard support to the DM raid target; like MD raid456 the user
must opt-in to raid456 discard support be specifying the
devices_handle_discard_safely=Y module param"
* tag 'dm-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm log userspace: fix memory leak in dm_ulog_tfr_init failure path
dm bufio: when done scanning return from __scan immediately
dm bufio: update last_accessed when relinking a buffer
dm raid: add discard support for RAID levels 4, 5 and 6
dm raid: add discard support for RAID levels 1 and 10
dm: allow active and inactive tables to share dm_devs
dm mpath: stop queueing IO when no valid paths exist
dm: use bioset_create_nobvec()
dm: remove nr_iovecs parameter from alloc_tio()
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Until this change, when loading a new DM table, DM core would re-open
all of the devices in the DM table. Now, DM core will avoid redundant
device opens (and closes when destroying the old table) if the old
table already has a device open using the same mode. This is achieved
by managing reference counts on the table_devices that DM core now
stores in the mapped_device structure (rather than in the dm_table
structure). So a mapped_device's active and inactive dm_tables' dm_dev
lists now just point to the dm_devs stored in the mapped_device's
table_devices list.
This improvement in DM core's device reference counting has the
side-effect of fixing a long-standing limitation of the multipath
target: a DM multipath table couldn't include any paths that were unusable
(failed). For example: if all paths have failed and you add a new,
working, path to the table; you can't use it since the table load would
fail due to it still containing failed paths. Now a re-load of a
multipath table can include failed devices and when those devices become
active again they can be used instantly.
The device list code in dm.c isn't a straight copy/paste from the code in
dm-table.c, but it's very close (aside from some variable renames). One
subtle difference is that find_table_device for the tables_devices list
will only match devices with the same name and mode. This is because we
don't want to upgrade a device's mode in the active table when an
inactive table is loaded.
Access to the mapped_device structure's tables_devices list requires a
mutex (tables_devices_lock), so that tables cannot be created and
destroyed concurrently.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Pull core block layer changes from Jens Axboe:
"This is the core block IO pull request for 3.18. Apart from the new
and improved flush machinery for blk-mq, this is all mostly bug fixes
and cleanups.
- blk-mq timeout updates and fixes from Christoph.
- Removal of REQ_END, also from Christoph. We pass it through the
->queue_rq() hook for blk-mq instead, freeing up one of the request
bits. The space was overly tight on 32-bit, so Martin also killed
REQ_KERNEL since it's no longer used.
- blk integrity updates and fixes from Martin and Gu Zheng.
- Update to the flush machinery for blk-mq from Ming Lei. Now we
have a per hardware context flush request, which both cleans up the
code should scale better for flush intensive workloads on blk-mq.
- Improve the error printing, from Rob Elliott.
- Backing device improvements and cleanups from Tejun.
- Fixup of a misplaced rq_complete() tracepoint from Hannes.
- Make blk_get_request() return error pointers, fixing up issues
where we NULL deref when a device goes bad or missing. From Joe
Lawrence.
- Prep work for drastically reducing the memory consumption of dm
devices from Junichi Nomura. This allows creating clone bio sets
without preallocating a lot of memory.
- Fix a blk-mq hang on certain combinations of queue depths and
hardware queues from me.
- Limit memory consumption for blk-mq devices for crash dump
scenarios and drivers that use crazy high depths (certain SCSI
shared tag setups). We now just use a single queue and limited
depth for that"
* 'for-3.18/core' of git://git.kernel.dk/linux-block: (58 commits)
block: Remove REQ_KERNEL
blk-mq: allocate cpumask on the home node
bio-integrity: remove the needless fail handle of bip_slab creating
block: include func name in __get_request prints
block: make blk_update_request print prefix match ratelimited prefix
blk-merge: don't compute bi_phys_segments from bi_vcnt for cloned bio
block: fix alignment_offset math that assumes io_min is a power-of-2
blk-mq: Make bt_clear_tag() easier to read
blk-mq: fix potential hang if rolling wakeup depth is too high
block: add bioset_create_nobvec()
block: use bio_clone_fast() in blk_rq_prep_clone()
block: misplaced rq_complete tracepoint
sd: Honor block layer integrity handling flags
block: Replace strnicmp with strncasecmp
block: Add T10 Protection Information functions
block: Don't merge requests if integrity flags differ
block: Integrity checksum flag
block: Relocate bio integrity flags
block: Add a disk flag to block integrity profile
block: Add prefix to block integrity profile flags
...
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REQ_KERNEL is no longer used. Remove it and drop the redundant uio
argument to nfs_file_direct_{read,write}.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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The math in both blk_stack_limits() and queue_limit_alignment_offset()
assume that a block device's io_min (aka minimum_io_size) is always a
power-of-2. Fix the math such that it works for non-power-of-2 io_min.
This issue (of alignment_offset != 0) became apparent when testing
dm-thinp with a thinp blocksize that matches a RAID6 stripesize of
1280K. Commit fdfb4c8c1 ("dm thin: set minimum_io_size to pool's data
block size") unlocked the potential for alignment_offset != 0 due to
the dm-thin-pool's io_min possibly being a non-power-of-2.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Users of bio_clone_fast() do not want bios with their own bvecs.
Allocating a bvec mempool as part of the bioset intended for such users
is a waste of memory.
bioset_create_nobvec() creates a bioset that doesn't have the bvec
mempool.
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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A set of flags introduced in the block layer enable better control over
how protection information is handled. These flags are useful for both
error injection and data recovery purposes. Checking can be enabled and
disabled for controller and disk, and the guard tag format is now a
per-I/O property.
Update sd_protect_op to communicate the relevant information to the
low-level device driver via a set of flags in scsi_cmnd.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
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The T10 Protection Information format is also used by some devices that
do not go through the SCSI layer (virtual block devices, NVMe). Relocate
the relevant functions to a block layer library that can be used without
involving SCSI.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
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