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The SEAD3 board no longer uses the cobalt_lcdfb driver, so remove the
SEAD3-specific code from it.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Ondrej Zary <linux@rainbow-software.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Simon Horman <horms+renesas@verge.net.au>
Cc: linux-mips@linux-mips.org
Cc: linux-fbdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14060/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The 2 line * 16 character LCD display on the SEAD3 board has no real use
as a framebuffer device. It's far too small to produce any meaningful
output if used as the kernel console, SEAD3 is a development board that
will essentially always have a far more useful UART connection & the
code in sead3-display.c will overwrite whatever's on the display every
second anyway. Remove this unused code.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14059/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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When nfsd calls fh_to_dentry, it expect ESTALE or ENOMEM as errors.
In particular it can be tempting to return ENOENT, but this is not
handled well by nfsd.
Rather than requiring strict adherence to error code code filesystems,
treat all unexpected error codes the same as ESTALE. This is safest.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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The changes to make EXPORT_SYMBOL work in asm, specifically commit
9445aa1a3062 ("ppc: move exports to definitions"), in the kbuild tree,
breaks some of our selftests.
That is because we symlink the kernel code into the selftest, and shim
the required headers, and we are now missing asm/export.h
So create a minimal export.h to keep the tests building once powerpc and
the kbuild trees are merged.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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The selftests under tools/testing/selftests/powerpc are maintained by
us, so add a file pattern for them.
Also drop the www.penguinppc.org link, it's not dead, but the site is
dead (database error). Instead link to the wiki attached to our github,
there is some info there which may be useful, which is better than none.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Paul is no longer acting as a separate maintainer for pseries, it is
handled along with the rest of powerpc. The URL no longer links anywhere
meaningful, so drop it also.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
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The platform is old, very few users and I lack bandwidth to keep after
it these days.
Mark the base platform as well as the drivers as orphans, patches have
been flowing through the fallback maintainers for a while already.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Some of the recent new selftests were missing additions to .gitignore,
add them now.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Early during boot topology_update_package_map() computes
logical_pkg_ids for all present processors.
Later, when processors are brought up, identify_cpu() updates
these values based on phys_pkg_id which is a function of
initial_apicid. On PV guests the latter may point to a
non-existing node, causing logical_pkg_ids to be set to -1.
Intel's RAPL uses logical_pkg_id (as topology_logical_package_id())
to index its arrays and therefore in this case will point to index
65535 (since logical_pkg_id is a u16). This could lead to either a
crash or may actually access random memory location.
As a workaround, we recompute topology during CPU bringup to reset
logical_pkg_id to a valid value.
(The reason for initial_apicid being bogus is because it is
initial_apicid of the processor from which the guest is launched.
This value is CPUID(1).EBX[31:24])
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
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Use of_property_read_bool instead of open-coding it as fpcu_has.
Convert the members of struct cpuinfo from u32 to bool accordingly as
they are only used as boolean anyhow.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
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Use eir_append_data to remove code duplication.
Signed-off-by: Michał Narajowski <michal.narajowski@codecoup.pl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Add appearance value to beginning of scan rsp data for
default advertising instance if the value is not 0.
Signed-off-by: Michał Narajowski <michal.narajowski@codecoup.pl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Use complete name if it fits. If not and there is short name
check if it fits. If not then use shortened name as prefix
of complete name.
Signed-off-by: Michał Narajowski <michal.narajowski@codecoup.pl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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btusb_set_bdaddr_marvell() configures BD address for Marvell chipsets.
This patch adds new chipset 8997 in the list so that BD address feature
would be available for it.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Some backlight GPIOs might be connected to some i2c based expanders whose
access might sleep.
Since it's not in any critical path, use the cansleep variant of the GPIO
API.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The field "owner" is set by the core.
Thus delete an unneeded initialisation.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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When compiling on x86 with CONFIG_OPROFILE=m and CONFIG_FRAME_POINTER=n,
the oprofile module fails to link:
ERROR: ftrace_graph_ret_addr" [arch/x86/oprofile/oprofile.ko] undefined!
The problem was introduced when oprofile was converted to use the new
x86 unwinder. When frame pointers are disabled, the "guess" unwinder's
unwind_get_return_address() is an inline function which calls
ftrace_graph_ret_addr(), which is not exported.
Fix it by converting the "guess" version of unwind_get_return_address()
to an exported out-of-line function, just like its frame pointer
counterpart.
Reported-by: Karl Beldan <karl.beldan@gmail.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: ec2ad9ccf12d ("oprofile/x86: Convert x86_backtrace() to use the new unwinder")
Link: http://lkml.kernel.org/r/be08d589f6474df78364e081c42777e382af9352.1475731632.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Commit 215e362dafed ("ARM: 8306/1: loop_udelay: remove bogomips value
limitation") tried to increase the bogomips limitation, but in doing
so messed up udelay such that it always gives about a 5% error in the
delay, even if we use a timer.
The calculation is:
loops = UDELAY_MULT * us_delay * ticks_per_jiffy >> UDELAY_SHIFT
Originally, UDELAY_MULT was ((UL(2199023) * HZ) >> 11) and UDELAY_SHIFT
30. Assuming HZ=100, us_delay of 1000 and ticks_per_jiffy of 1660000
(eg, 166MHz timer, 1ms delay) this would calculate:
((UL(2199023) * HZ) >> 11) * 1000 * 1660000 >> 30
=> 165999
With the new values of 2047 * HZ + 483648 * HZ / 1000000 and 31, we get:
(2047 * HZ + 483648 * HZ / 1000000) * 1000 * 1660000 >> 31
=> 158269
which is incorrect. This is due to a typo - correcting it gives:
(2147 * HZ + 483648 * HZ / 1000000) * 1000 * 1660000 >> 31
=> 165999
i.o.w, the original value.
Fixes: 215e362dafed ("ARM: 8306/1: loop_udelay: remove bogomips value limitation")
Cc: <stable@vger.kernel.org>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Don't request an ACK on the last DATA packet of a call's Tx phase as for a
client there will be a reply packet or some sort of ACK to shift phase. If
the ACK is requested, OpenAFS sends a REQUESTED-ACK ACK with soft-ACKs in
it and doesn't follow up with a hard-ACK.
If we don't set the flag, OpenAFS will send a DELAY ACK that hard-ACKs the
reply data, thereby allowing the call to terminate cleanly.
Signed-off-by: David Howells <dhowells@redhat.com>
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We need to generate a DELAY ACK from the service end of an operation if we
start doing the actual operation work and it takes longer than expected.
This will hard-ACK the request data and allow the client to release its
resources.
To make this work:
(1) We have to set the ack timer and propose an ACK when the call moves to
the RXRPC_CALL_SERVER_ACK_REQUEST and clear the pending ACK and cancel
the timer when we start transmitting the reply (the first DATA packet
of the reply implicitly ACKs the request phase).
(2) It must be possible to set the timer when the caller is holding
call->state_lock, so split the lock-getting part of the timer function
out.
(3) Add trace notes for the ACK we're requesting and the timer we clear.
Signed-off-by: David Howells <dhowells@redhat.com>
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When it's in the waiting-for-ACK state, the AFS filesystem needs to check
the result of rxrpc_kernel_recv_data() any time it is notified to see if it
is indicating a fatal error. If this is the case, it needs to mark the
call completed otherwise the call just sits there and never goes away.
Signed-off-by: David Howells <dhowells@redhat.com>
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In rxrpc_kernel_recv_data(), when we return the error number incurred by a
failed call, we must negate it before returning it as it's stored as
positive (that's what we have to pass back to userspace).
Signed-off-by: David Howells <dhowells@redhat.com>
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The call's background processor work item needs to notify the socket when
it completes a call so that recvmsg() or the AFS fs can deal with it.
Without this, call expiry isn't handled.
Signed-off-by: David Howells <dhowells@redhat.com>
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When a call expires, it must be queued for the background processor to deal
with otherwise a service call that is improperly terminated will just sit
there awaiting an ACK and won't expire.
Signed-off-by: David Howells <dhowells@redhat.com>
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OpenAFS doesn't always correctly terminate client calls that it makes -
this includes calls the OpenAFS servers make to the cache manager service.
It should end the client call with either:
(1) An ACK that has firstPacket set to one greater than the seq number of
the reply DATA packet with the LAST_PACKET flag set (thereby
hard-ACK'ing all packets). nAcks should be 0 and acks[] should be
empty (ie. no soft-ACKs).
(2) An ACKALL packet.
OpenAFS, though, may send an ACK packet with firstPacket set to the last
seq number or less and soft-ACKs listed for all packets up to and including
the last DATA packet.
The transmitter, however, is obliged to keep the call live and the
soft-ACK'd DATA packets around until they're hard-ACK'd as the receiver is
permitted to drop any merely soft-ACK'd packet and request retransmission
by sending an ACK packet with a NACK in it.
Further, OpenAFS will also terminate a client call by beginning the next
client call on the same connection channel. This implicitly completes the
previous call.
This patch handles implicit ACK of a call on a channel by the reception of
the first packet of the next call on that channel.
If another call doesn't come along to implicitly ACK a call, then we have
to time the call out. There are some bugs there that will be addressed in
subsequent patches.
Signed-off-by: David Howells <dhowells@redhat.com>
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Separate the output of PING ACKs from the output of other sorts of ACK so
that if we receive a PING ACK and schedule transmission of a PING RESPONSE
ACK, the response doesn't get cancelled by a PING ACK we happen to be
scheduling transmission of at the same time.
If a PING RESPONSE gets lost, the other side might just sit there waiting
for it and refuse to proceed otherwise.
Signed-off-by: David Howells <dhowells@redhat.com>
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Split rxrpc_send_data_packet() to separate ACK generation (which is more
complicated) from ABORT generation. This simplifies the code a bit and
fixes the following warning:
In file included from ../net/rxrpc/output.c:20:0:
net/rxrpc/output.c: In function 'rxrpc_send_call_packet':
net/rxrpc/ar-internal.h:1187:27: error: 'top' may be used uninitialized in this function [-Werror=maybe-uninitialized]
net/rxrpc/output.c:103:24: note: 'top' was declared here
net/rxrpc/output.c:225:25: error: 'hard_ack' may be used uninitialized in this function [-Werror=maybe-uninitialized]
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
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When a reply is deemed lost, we send a ping to find out the other end
received all the request data packets we sent. This should be limited to
client calls and we shouldn't do this on service calls.
Signed-off-by: David Howells <dhowells@redhat.com>
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If an call comes in to a local endpoint that isn't listening for any
incoming calls at the moment, an oops will happen. We need to check that
the local endpoint's service pointer isn't NULL before we dereference it.
Signed-off-by: David Howells <dhowells@redhat.com>
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Remove a duplicate const keyword.
Signed-off-by: David Howells <dhowells@redhat.com>
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struct rxrpc_local->service is marked __rcu - this means that accesses of
it need to be managed using RCU wrappers. There are two such places in
rxrpc_release_sock() where the value is checked and cleared. Fix this by
using the appropriate wrappers.
Signed-off-by: David Howells <dhowells@redhat.com>
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Good evening,
Following LinuxCodingStyle documentation and with the help of Sam, fixed
severals identation issues in the code, and few others cosmetic changes
And last and i hope least fixing my name :)
Signed-off-by : Dominique Carrel <netmonk@netmonk.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Chris Hyser says:
====================
sparc64: PCIe performance enhancements
Ver 2 is redone for 4.8 where commit 00085f1efa387a8ce100e3734920f7639c80caa3
changed DMA attributes from struct pointer to unsigned long.
This set of patches initiates a series of PCIe performance enhancement patch
submittals.
Patch 1/2 enables version 2 of the SPARC sun4v IOMMU I/O address translation
services need for subsequent enhancements.
Patch 2/2 allows drivers to specify DMA_ATTR_WEAK_ORDERING via DMA attributes
to the SPARC DMA mapping routines enabling "relaxed ordering" for the buffer
being mapped.
[Still relevant write-up]
PCI-Express Relaxed Ordering and the Sun SPARC Enterprise M-class Servers
https://blogs.oracle.com/olympus/entry/relaxed_ordering
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Enable relaxed ordering for memory writes in IOMMU TSB entry from
dma_4v_alloc_coherent(), dma_4v_map_page() and dma_4v_map_sg() when
dma_attrs DMA_ATTR_WEAK_ORDERING is set. This requires PCI IOMMU I/O
Translation Services version 2.0 API.
Many PCIe devices allow enabling relaxed-ordering (memory writes bypassing
other memory writes) for various DMA buffers. A notable exception is the
Mellanox mlx4 IB adapter. Due to the nature of x86 HW this appears to have
little performance impact there. On SPARC HW however, this results in major
performance degradation getting only about 3Gbps. Enabling RO in the IOMMU
entries corresponding to mlx4 data buffers increases the throughput to
about 13 Gbps.
Orabug: 19245907
Signed-off-by: Chris Hyser <chris.hyser@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Enable Version 2 of the PCI IOMMU API needed for advanced features
such as PCI Relaxed Ordering and greater than 2 GB DMA address
space per root complex.
Signed-off-by: Chris Hyser <chris.hyser@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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These files were only including module.h for exception table
related functions. We've now separated that content out into its
own file "extable.h" so now move over to that and avoid all the
extra header content in module.h that we don't really need to compile
these files.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In preparation for allowing multiple namespace per pmem region, unify
blk and pmem label scanning. Given that blk regions already support
multiple namespaces, teaching that path how to do pmem namespace
scanning is an incremental step towards multiple pmem namespace support.
This should be functionally equivalent to the previous state in that
stops after finding the first valid pmem label set.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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The ability to translate a generic struct device pointer into a
namespace uuid is a useful utility as we go to unify the blk and pmem
label scanning paths.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Set bit 0 in register 1C.23 to enable the EDPD feature of the
KSZ9031 PHY. This reduces power consumption when the link is
down.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer:
"The bulk of the changes here are to clean up the ColdFire 5441x SoC
support so that it can run with MMU enabled. We have only supported it
with MMU disabled up to now.
There is also a few individual bug fixes across the ColdFire support
code"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: let clk_disable() return immediately if clk is NULL
m68knommu: convert printk(KERN_INFO) to pr_info()
m68knommu: clean up uClinux boot log output
m68k: generalize uboot command line support
m68k: don't panic if no hardware FPU defined
m68k: only generate FPU instructions if CONFIG_FPU enabled
m68k: always make available dump_fpu()
m68k: generalize io memory region setup for ColdFire ACR registers
m68k: move ColdFire _bootmem_alloc code
m68k: report correct FPU type on ColdFire MMU platforms
m68k: set appropriate machine type for m5411x SoC platforms
m68k: move CONFIG_FPU set to per-CPU configuration
m68knommu: fix IO write size in nettel pin set
m68knommu: switch to using IO access methods in WildFire board code
m68knommu: fix early setup to not access variables
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Pull Xtensa updates from Max Filippov:
"Updates for the xtensa architecture. It is a combined set of patches
for 4.8 that never got to the mainline and new patches for 4.9.
- add new kernel memory layouts for MMUv3 cores: with 256MB and 512MB
KSEG size, starting at physical address other than 0
- make kernel load address configurable
- clean up kernel memory layout macros
- drop sysmem early allocator and switch to memblock
- enable kmemleak and memory reservation from the device tree
- wire up new syscalls: userfaultfd, membarrier, mlock2,
copy_file_range, preadv2 and pwritev2
- add new platform: Cadence Configurable System Platform (CSP) and
new core variant for it: xt_lnx
- rearrange CCOUNT calibration code, make most of it generic
- improve machine reset code (XTFPGA now reboots reliably with MMUv3
cores)
- provide default memmap command line option for configurations
without device tree support
- ISS fixes: simdisk is now capable of using highmem pages, panic
correctly terminates simulator"
* tag 'xtensa-20161005' of git://github.com/jcmvbkbc/linux-xtensa: (24 commits)
xtensa: disable MMU initialization option on MMUv2 cores
xtensa: add default memmap and mmio32native options to defconfigs
xtensa: add default memmap option to common_defconfig
xtensa: add default memmap option to iss_defconfig
xtensa: ISS: allow simdisk to use high memory buffers
xtensa: ISS: define simc_exit and use it instead of inline asm
xtensa: xtfpga: group platform_* functions together
xtensa: rearrange CCOUNT calibration
xtensa: xtfpga: use clock provider, don't update DT
xtensa: Tweak xuartps UART driver Rx watermark for Cadence CSP config.
xtensa: initialize MMU before jumping to reset vector
xtensa: fix icountlevel setting in cpu_reset
xtensa: extract common CPU reset code into separate function
xtensa: Added Cadence CSP kernel configuration for Xtensa
xtensa: fix default kernel load address
xtensa: wire up new syscalls
xtensa: support reserved-memory DT node
xtensa: drop sysmem and switch to memblock
xtensa: minimize use of PLATFORM_DEFAULT_MEM_{ADDR,SIZE}
xtensa: cleanup MMU setup and kernel layout macros
...
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assignment"
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net-next
This is a pull request to address fallout from previous nf-next pull
request, only fixes going on here:
1) Address a potential null dereference in nf_unregister_net_hook()
when becomes nf_hook_entry_head is NULL, from Aaron Conole.
2) Missing ifdef for CONFIG_NETFILTER_INGRESS, also from Aaron.
3) Fix linking problems in xt_hashlimit in x86_32, from Pai.
4) Fix permissions of nf_log sysctl from unpriviledge netns, from
Jann Horn.
5) Fix possible divide by zero in nft_limit, from Liping Zhang.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement swapext for filesystems that have reverse mapping. Back in
the reflink patches, we augmented the bmap code with a 'REMAP' flag
that updates only the bmbt and doesn't touch the allocator and
implemented log redo items for those two operations. Now we can
rewrite extent swapping as a (looong) series of remap operations.
This is far less efficient than the fork swapping method implemented
in the past, so we only switch this on for rmap.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
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Refactor the swapext function to pull out the fork swapping piece
into a separate function. In the next patch we'll add in the bit
we need to make it work with rmap filesystems.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
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Replace structure typedefs with struct expressions and fix some
whitespace issues that result.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
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Add the reflink feature flag to the set of recognized feature flags.
This enables users to write to reflink filesystems.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
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Create an error injection point that enables us to simulate being
critically low on per-AG block reservations. This should enable us to
simulate this specific ENOSPC condition so that we can test falling back
to a regular file copy.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
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