Commit graph

616037 commits

Author SHA1 Message Date
Jonas Gorski
b8f54f2cde MIPS: ZBOOT: copy appended dtb to the end of the kernel
Instead of rewriting the arguments, just move the appended dtb to where
the decompressed kernel expects it. This eliminates the need for special
casing vmlinuz.bin appended dtb files.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: John Crispin <john@phrozen.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Alban Bedel <albeu@free.fr>
Cc: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
Cc: Antony Pavlov <antonynpavlov@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13698/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-08-02 14:00:16 +02:00
Álvaro Fernández Rojas
7997789461 MIPS: ralink: fix spis group pinmux
pwm function for spis conflicts with uart2 and uart1, fix this by changing it
to pwm_uart2, which reflects the real use of these pins with these pinmux
(2 for pwm and 2 for uart).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Cc: john@phrozen.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13369/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-08-02 11:02:35 +02:00
Harvey Hunt
d1e63c947a MIPS: Factor o32 specific code into signal_o32.c
The commit ebb5e78cc6 ("MIPS: Initial implementation of a VDSO")
caused building a 64 bit kernel with support for n32 and not o32
to produce a build error:

arch/mips/kernel/signal32.c:415:11: error: ‘vdso_image_o32’ undeclared here (not in a function)
  .vdso  = &vdso_image_o32,

Fix this by moving the o32 specific code into signal_o32.c and
updating the Makefile accordingly.

Signed-off-by: Harvey Hunt <harvey.hunt@imgtec.com>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: Alex Smith <alex@alex-smith.me.uk>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13690/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-08-02 11:02:35 +02:00
David Ahern
0d87d7ec22 perf/core: Change log level for duration warning to KERN_INFO
When the perf interrupt handler exceeds a threshold warning messages
are displayed on console:

  [12739.31793] perf interrupt took too long (2504 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
  [71340.165065] perf interrupt took too long (5005 > 5000), lowering kernel.perf_event_max_sample_rate to 25000

Many customers and users are confused by the message wondering if
something is wrong or they need to take action to fix a problem.
Since a user can not do anything to fix the issue, the message is really
more informational than a warning. Adjust the log level accordingly.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1470084569-438-1-git-send-email-dsa@cumulusnetworks.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-08-02 10:23:57 +02:00
Paul Burton
1a770b85c1 MIPS: non-exec stack & heap when non-exec PT_GNU_STACK is present
The stack and heap have both been executable by default on MIPS until
now. This patch changes the default to be non-executable, but only for
ELF binaries with a non-executable PT_GNU_STACK header present. This
does apply to both the heap & the stack, despite the name PT_GNU_STACK,
and this matches the behaviour of other architectures like ARM & x86.

Current MIPS toolchains do not produce the PT_GNU_STACK header, which
means that we can rely upon this patch not changing the behaviour of
existing binaries. The new default will only take effect for newly
compiled binaries once toolchains are updated to support PT_GNU_STACK,
and since those binaries are newly compiled they can be compiled
expecting the change in default behaviour. Again this matches the way in
which the ARM & x86 architectures handled their implementations of
non-executable memory.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Leonid Yegoshin <leonid.yegoshin@imgtec.com>
Cc: Maciej Rozycki <maciej.rozycki@imgtec.com>
Cc: Faraz Shahbazker <faraz.shahbazker@imgtec.com>
Cc: Raghu Gandham <raghu.gandham@imgtec.com>
Cc: Matthew Fortune <matthew.fortune@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13765/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-08-02 09:29:27 +02:00
Paul Burton
432c6bacbd MIPS: Use per-mm page to execute branch delay slot instructions
In some cases the kernel needs to execute an instruction from the delay
slot of an emulated branch instruction. These cases include:

  - Emulated floating point branch instructions (bc1[ft]l?) for systems
    which don't include an FPU, or upon which the kernel is run with the
    "nofpu" parameter.

  - MIPSr6 systems running binaries targeting older revisions of the
    architecture, which may include branch instructions whose encodings
    are no longer valid in MIPSr6.

Executing instructions from such delay slots is done by writing the
instruction to memory followed by a trap, as part of an "emuframe", and
executing it. This avoids the requirement of an emulator for the entire
MIPS instruction set. Prior to this patch such emuframes are written to
the user stack and executed from there.

This patch moves FP branch delay emuframes off of the user stack and
into a per-mm page. Allocating a page per-mm leaves userland with access
to only what it had access to previously, and compared to other
solutions is relatively simple.

When a thread requires a delay slot emulation, it is allocated a frame.
A thread may only have one frame allocated at any one time, since it may
only ever be executing one instruction at any one time. In order to
ensure that we can free up allocated frame later, its index is recorded
in struct thread_struct. In the typical case, after executing the delay
slot instruction we'll execute a break instruction with the BRK_MEMU
code. This traps back to the kernel & leads to a call to do_dsemulret
which frees the allocated frame & moves the user PC back to the
instruction that would have executed following the emulated branch.
In some cases the delay slot instruction may be invalid, such as a
branch, or may trigger an exception. In these cases the BRK_MEMU break
instruction will not be hit. In order to ensure that frames are freed
this patch introduces dsemul_thread_cleanup() and calls it to free any
allocated frame upon thread exit. If the instruction generated an
exception & leads to a signal being delivered to the thread, or indeed
if a signal simply happens to be delivered to the thread whilst it is
executing from the struct emuframe, then we need to take care to exit
the frame appropriately. This is done by either rolling back the user PC
to the branch or advancing it to the continuation PC prior to signal
delivery, using dsemul_thread_rollback(). If this were not done then a
sigreturn would return to the struct emuframe, and if that frame had
meanwhile been used in response to an emulated branch instruction within
the signal handler then we would execute the wrong user code.

Whilst a user could theoretically place something like a compact branch
to self in a delay slot and cause their thread to become stuck in an
infinite loop with the frame never being deallocated, this would:

  - Only affect the users single process.

  - Be architecturally invalid since there would be a branch in the
    delay slot, which is forbidden.

  - Be extremely unlikely to happen by mistake, and provide a program
    with no more ability to harm the system than a simple infinite loop
    would.

If a thread requires a delay slot emulation & no frame is available to
it (ie. the process has enough other threads that all frames are
currently in use) then the thread joins a waitqueue. It will sleep until
a frame is freed by another thread in the process.

Since we now know whether a thread has an allocated frame due to our
tracking of its index, the cookie field of struct emuframe is removed as
we can be more certain whether we have a valid frame. Since a thread may
only ever have a single frame at any given time, the epc field of struct
emuframe is also removed & the PC to continue from is instead stored in
struct thread_struct. Together these changes simplify & shrink struct
emuframe somewhat, allowing twice as many frames to fit into the page
allocated for them.

The primary benefit of this patch is that we are now free to mark the
user stack non-executable where that is possible.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Leonid Yegoshin <leonid.yegoshin@imgtec.com>
Cc: Maciej Rozycki <maciej.rozycki@imgtec.com>
Cc: Faraz Shahbazker <faraz.shahbazker@imgtec.com>
Cc: Raghu Gandham <raghu.gandham@imgtec.com>
Cc: Matthew Fortune <matthew.fortune@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13764/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-08-02 09:28:53 +02:00
Wei Yongjun
c8e18acccb ipr: Fix error return code in ipr_probe_ioa()
Fix to return error code -ENOMEM from the workqueue alloc error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-08-02 01:19:18 -04:00
Wei Yongjun
a561a8ea83 fcoe: add missing destroy_workqueue() on error in fcoe_init()
Add the missing destroy_workqueue() before return from fcoe_init() in
the fcoe transport register failed error handling case.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-08-02 01:18:05 -04:00
Johannes Thumshirn
22466da5b4 lpfc: Fix possible NULL pointer dereference
Check for the existence of piocb->vport before accessing it.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-08-02 01:16:28 -04:00
Sudarsana Reddy Kalluru
1d2c2024dc qed: Fail driver load in 100g MSI mode.
100g support is not available in MSI mode. Failing the driver load in this scenario.

Please consider applying this to `net'.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 22:13:59 -07:00
David S. Miller
bbcecd6020 Merge branch 'net-of_node_put'
Peter Chen says:

====================
add missing of_node_put after calling of_parse_phandle

This patch set fixes missing of_node_put issue at ethernet driver.
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

The compilation test has passed by using allmodconfig for drivers/net/ethernet.

Changes for v2:
- If the device node is local variable, it can be put in the same function.
- If the device node will be used the whole driver life cycle,
  it should be put (call of_node_put) at driver's remove.
  Patch [4, 5, 9, 14, 15/15]
- Fix the issue that the node still be used at error patch [6/15]
- Add acked for patch [11,12/15]
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:58 -07:00
Peter Chen
5817f97752 ethernet: ti: davinci_emac: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:49 -07:00
Peter Chen
4613b279be ethernet: stmicro: stmmac: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

This commit fixes both local (in stmmac_axi_setup) and global
(plat->phy_node) device_node for this issue, and using the
correct device node when tries to put node at stmmac_probe_config_dt
for error path.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:49 -07:00
Peter Chen
f7113b3af1 ethernet: stmicro: stmmac: dwmac-socfpga: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:49 -07:00
Peter Chen
8da703dc8d ethernet: renesas: sh_eth: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:49 -07:00
Peter Chen
c9b1eb8919 ethernet: renesas: ravb_main: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:49 -07:00
Peter Chen
bd1026c69f ethernet: marvell: pxa168_eth: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:48 -07:00
Peter Chen
ccb80393c4 ethernet: marvell: mvpp2: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:48 -07:00
Peter Chen
d4e4da00b6 ethernet: marvell: mvneta: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:48 -07:00
Peter Chen
453cafbce5 ethernet: hisilicon: hns: hns_dsaf_main: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:48 -07:00
Peter Chen
b2e45406e7 ethernet: hisilicon: hns: hns_dsaf_mac: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:48 -07:00
Peter Chen
46997066ff ethernet: cavium: octeon: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:48 -07:00
Peter Chen
8d00201a2e ethernet: aurora: nb8800: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:47 -07:00
Peter Chen
a94efbd7cc ethernet: arc: emac_main: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:47 -07:00
Peter Chen
9c52de036b ethernet: apm: xgene: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:43:47 -07:00
Peter Chen
5d97222ae0 ethernet: altera: add missing of_node_put
of_node_put needs to be called when the device node which is got
from of_parse_phandle (or of_node_get) has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:42:57 -07:00
Chun-Hao Lin
0a2f0d2de4 8139too: fix system hang when there is a tx timeout event.
If tx timeout event occur, kernel will call rtl8139_tx_timeout_task() to reset
hardware. But in this function, driver does not stop tx and rx function before
reset hardware, that will cause system hang.

In this patch, add stop tx and rx function before reset hardware.

Signed-off-by: Chunhao Lin <hau@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:38:53 -07:00
Wei Yongjun
1b4985b5e8 qed: Fix error return code in qed_resc_alloc()
Fix to return error code -EINVAL instead of 0 when EQ elements is
too larger, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-01 21:37:35 -07:00
Linus Torvalds
731c7d3a20 Merge tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux
Merge drm updates from Dave Airlie:
 "This is the main drm pull request for 4.8.

  I'm down with a cold at the moment so hopefully this isn't in too bad
  a state, I finished pulling stuff last week mostly (nouveau fixes just
  went in today), so only this message should be influenced by illness.
  Apologies to anyone who's major feature I missed :-)

  Core:
        Lockless GEM BO freeing
        Non-blocking atomic work
        Documentation changes (rst/sphinx)
        Prep for new fencing changes
        Simple display helpers
        Master/auth changes
        Register/unregister rework
        Loads of trivial patches/fixes.

  New stuff:
        ARM Mali display driver (not the 3D chip)
        sii902x RGB->HDMI bridge

  Panel:
        Support for new panels
        Improved backlight support

  Bridge:
        Convert ADV7511 to bridge driver
        ADV7533 support
        TC358767 (DSI/DPI to eDP) encoder chip support

  i915:
        BXT support enabled by default
        GVT-g infrastructure
        GuC command submission and fixes
        BXT workarounds
        SKL/BKL workarounds
        Demidlayering device registration
        Thundering herd fixes
        Missing pci ids
        Atomic updates

  amdgpu/radeon:
        ATPX improvements for better dGPU power control on PX systems
        New power features for CZ/BR/ST
        Pipelined BO moves and evictions in TTM
        GPU scheduler improvements
        GPU reset improvements
        Overclocking on dGPUs with amdgpu
        Polaris powermanagement enabled

  nouveau:
        GK20A/GM20B volt and clock improvements.
        Initial support for GP100/GP104 GPUs, GP104 will not yet support
        acceleration due to NVIDIA having not released firmware for them as of yet.

  exynos:
        Exynos5433 SoC with IOMMU support.

  vc4:
        Shader validation for branching

  imx-drm:
        Atomic mode setting conversion
        Reworked DMFC FIFO allocation
        External bridge support

  analogix-dp:
        RK3399 eDP support
        Lots of fixes.

  rockchip:
        Lots of small fixes.

  msm:
        DT bindings cleanups
        Shrinker and madvise support
        ASoC HDMI codec support

  tegra:
        Host1x driver cleanups
        SOR reworking for DP support
        Runtime PM support

  omapdrm:
        PLL enhancements
        Header refactoring
        Gamma table support

  arcgpu:
        Simulator support

  virtio-gpu:
        Atomic modesetting fixes.

  rcar-du:
        Misc fixes.

  mediatek:
        MT8173 HDMI support

  sti:
        ASOC HDMI codec support
        Minor fixes

  fsl-dcu:
        Suspend/resume support
        Bridge support

  amdkfd:
        Minor fixes.

  etnaviv:
        Enable GPU clock gating

  hisilicon:
        Vblank and other fixes"

* tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux: (1575 commits)
  drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup
  drm/nouveau/acpi: fix lockup with PCIe runtime PM
  drm/nouveau/acpi: check for function 0x1B before using it
  drm/nouveau/acpi: return supported DSM functions
  drm/nouveau/acpi: ensure matching ACPI handle and supported functions
  drm/nouveau/fbcon: fix font width not divisible by 8
  drm/amd/powerplay: remove enable_clock_power_gatings_tasks from initialize and resume events
  drm/amd/powerplay: move clockgating to after ungating power in pp for uvd/vce
  drm/amdgpu: add query device id and revision id into system info entry at CGS
  drm/amdgpu: add new definition in bif header
  drm/amd/powerplay: rename smum header guards
  drm/amdgpu: enable UVD context buffer for older HW
  drm/amdgpu: fix default UVD context size
  drm/amdgpu: fix incorrect type of info_id
  drm/amdgpu: make amdgpu_cgs_call_acpi_method as static
  drm/amdgpu: comment out unused defaults_staturn_pro static const structure to fix the build
  drm/amdgpu: enable UVD VM only on polaris
  drm/amdgpu: increase timeout of IB test
  drm/amdgpu: add destroy session when generate VCE destroy msg.
  drm/amd: fix deadlock of job_list_lock V2
  ...
2016-08-01 21:44:08 -04:00
Stephen Rothwell
77a87824ed clocksource/drivers/clps_711x: fixup for "ARM: clps711x:
Switch to MULTIPLATFORM"

Missed conflict between commit c86f51737f ("ARM: clps711x: Switch to
MULTIPLATFORM") from the arm-soc tree and commit 250e46aa3bb3
("clocksource/drivers/clps_711x: Add the COMPILE_TEST option") from the
clockevents tree.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-01 21:25:20 -04:00
Dave Airlie
753e7c8cbd Merge branch 'linux-4.8' of git://github.com/skeggsb/linux into drm-next
Runtime PM fixes, fbcon and nv30 fix.
* 'linux-4.8' of git://github.com/skeggsb/linux:
  drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup
  drm/nouveau/acpi: fix lockup with PCIe runtime PM
  drm/nouveau/acpi: check for function 0x1B before using it
  drm/nouveau/acpi: return supported DSM functions
  drm/nouveau/acpi: ensure matching ACPI handle and supported functions
  drm/nouveau/fbcon: fix font width not divisible by 8
2016-08-02 11:16:02 +10:00
Jason Wang
a9709d6874 vhost: convert pre sorted vhost memory array to interval tree
Current pre-sorted memory region array has some limitations for future
device IOTLB conversion:

1) need extra work for adding and removing a single region, and it's
   expected to be slow because of sorting or memory re-allocation.
2) need extra work of removing a large range which may intersect
   several regions with different size.
3) need trick for a replacement policy like LRU

To overcome the above shortcomings, this patch convert it to interval
tree which can easily address the above issue with almost no extra
work.

The patch could be used for:

- Extend the current API and only let the userspace to send diffs of
  memory table.
- Simplify Device IOTLB implementation.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-02 02:57:31 +03:00
Jason Wang
bfe2bc5128 vhost: introduce vhost memory accessors
This patch introduces vhost memory accessors which were just wrappers
for userspace address access helpers. This is a requirement for vhost
device iotlb implementation which will add iotlb translations in those
accessors.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-02 02:57:30 +03:00
Asias He
304ba62fd4 VSOCK: Add Makefile and Kconfig
Enable virtio-vsock and vhost-vsock.

Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-02 02:57:30 +03:00
Asias He
433fc58e6b VSOCK: Introduce vhost_vsock.ko
VM sockets vhost transport implementation.  This driver runs on the
host.

Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-02 02:57:30 +03:00
Asias He
0ea9e1d3a9 VSOCK: Introduce virtio_transport.ko
VM sockets virtio transport implementation.  This driver runs in the
guest.

Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-02 02:57:29 +03:00
Asias He
06a8fc7836 VSOCK: Introduce virtio_vsock_common.ko
This module contains the common code and header files for the following
virtio_transporto and vhost_vsock kernel modules.

Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-02 02:57:29 +03:00
Stefan Hajnoczi
6773b7dc39 VSOCK: defer sock removal to transports
The virtio transport will implement graceful shutdown and the related
SO_LINGER socket option.  This requires orphaning the sock but keeping
it in the table of connections after .release().

This patch adds the vsock_remove_sock() function and leaves it up to the
transport when to remove the sock.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-02 02:57:28 +03:00
Stefan Hajnoczi
0b01aeb3d2 VSOCK: transport-specific vsock_transport functions
struct vsock_transport contains function pointers called by AF_VSOCK
core code.  The transport may want its own transport-specific function
pointers and they can be added after struct vsock_transport.

Allow the transport to fetch vsock_transport.  It can downcast it to
access transport-specific function pointers.

The virtio transport will use this.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-02 02:57:28 +03:00
Michael S. Tsirkin
6190efb08c vhost: drop vringh dependency
vringh isn't used by vhost net or scsi - it's used
by CAIF only at the moment. Drop the dependency.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-02 02:57:28 +03:00
Michael S. Tsirkin
48783646bd vop: pull in vhost Kconfig
VOP selects VHOST_RING. Pull in Kconfig that includes it
to make it self-containing.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-02 02:57:27 +03:00
Linus Torvalds
e48af7aaf1 Miscellaneous ia64 cleanups
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Merge tag 'please-pull-misc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull ia64 updates from Tony Luck:
 "Miscellaneous ia64 cleanups"

* tag 'please-pull-misc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  ia64: salinfo: use a waitqueue instead a sema down/up combo
  ia64: efi: use timespec64 for persistent clock
2016-08-01 18:55:31 -04:00
Linus Torvalds
ed780686de ARM: 64-bit DT updates for v4.8
Just as the 32-bit contents, the 64-bit device tree branch also contains
 a number of additions this release cycle.
 
 New platforms:
  - LG LG1313
  - Mediatek MT6755
  - Renesas r8a7796
  - Broadcom 2837
 
  Other platforms with larger updates are:
  - Nvidia X1 platforms (USB 3.0, regulators, display subsystem)
  - Mediatek MT8173 (display subsystem added)
  - Rockchip RK3399 (a lot of new peripherals)
  - ARM Juno reference implementation (SCPI power domains, coresight, thermal)
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Merge tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull 64-bit ARM DT updates from Olof Johansson:
 "Just as the 32-bit contents, the 64-bit device tree branch also
  contains a number of additions this release cycle.

  New platforms:
   - LG LG1313
   - Mediatek MT6755
   - Renesas r8a7796
   - Broadcom 2837

  Other platforms with larger updates are:
   - Nvidia X1 platforms (USB 3.0, regulators, display subsystem)
   - Mediatek MT8173 (display subsystem added)
   - Rockchip RK3399 (a lot of new peripherals)
   - ARM Juno reference implementation (SCPI power domains, coresight,
     thermal)"

* tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (118 commits)
  arm64: tegra: Enable HDMI on Jetson TX1
  arm64: tegra: Add sor1_src clock
  arm64: tegra: Add XUSB powergates on Tegra210
  arm64: tegra: Add DPAUX pinctrl bindings
  arm64: tegra: Add ACONNECT bus node for Tegra210
  arm64: tegra: Add audio powergate node for Tegra210
  arm64: tegra: Add regulators for Tegra210 Smaug
  arm64: tegra: Correct Tegra210 XUSB mailbox interrupt
  arm64: tegra: Enable XUSB controller on Jetson TX1
  arm64: tegra: Enable debug serial on Jetson TX1
  arm64: tegra: Add Tegra210 XUSB controller
  arm64: tegra: Add Tegra210 XUSB pad controller
  arm64: tegra: Add DSI panel on Jetson TX1
  arm64: tegra: p2597: Add SDMMC power supplies
  arm64: tegra: Add PMIC support on Jetson TX1
  Revert "ARM64: DTS: meson-gxbb: switch ethernet to real clock"
  arm64: dts: hi6220: Add pl031 RTC support
  arm64: dts: r8a7796/salvator-x: Enable watchdog timer
  arm64: dts: r8a7796: Add RWDT node
  arm64: dts: r8a7796: Use SYSC "always-on" PM Domain
  ...
2016-08-01 18:47:01 -04:00
Linus Torvalds
043248cd4e ARM: DT updates for v4.8
Device tree contents continue to be the largest branches we submit. This
 time around, some of the contents worth pointing out is:
 
 - New SoC platforms:
   - Freescale i.MX 7Solo
   - Broadcom BCM23550
   - Cirrus Logic EP7209 and EP7211 (clps711x platforms)_
   - Hisilicon HI3519
   - Renesas R8A7792
 
 Some of the other delta that is sticking out, line-count wise:
  - Exynos moves of IP blocks under an SoC bus, which causes a large delta due
    to indentation changes
  - A new Tegra K1 board: Apalis
  - A bunch of small updates to many Allwinner platforms; new hardware support,
    some cleanup, etc.
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM DT updates from Olof Johansson:
 "Device tree contents continue to be the largest branches we submit.
  This time around, some of the contents worth pointing out is:

  New SoC platforms:
   - Freescale i.MX 7Solo
   - Broadcom BCM23550
   - Cirrus Logic EP7209 and EP7211 (clps711x platforms)_
   - Hisilicon HI3519
   - Renesas R8A7792

  Some of the other delta that is sticking out, line-count wise:
   - Exynos moves of IP blocks under an SoC bus, which causes a large
     delta due to indentation changes
   - a new Tegra K1 board: Apalis
   - a bunch of small updates to many Allwinner platforms; new hardware
     support, some cleanup, etc"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (426 commits)
  ARM: dts: sun8i: Add dts file for inet86dz board
  ARM: dts: sun8i: Add dts file for Polaroid MID2407PXE03 tablet
  ARM: dts: sun8i: Use sun8i-reference-design-tablet for ga10h dts
  ARM: dts: sun8i: Use sun8i-reference-design-tablet for polaroid mid2809pxe04
  ARM: dts: sun8i: reference-design-tablet: Add drivevbus-supply
  ARM: dts: Copy sun8i-q8-common.dtsi sun8i-reference-design-tablet.dtsi
  ARM: dts: sun5i: Use sun5i-reference-design-tablet.dtsi for utoo p66 dts
  ARM: dts: sun5i: Use sun5i-reference-design-tablet.dtsi for dit4350 dts
  ARM: dts: sun5i: reference-design-tablet: Remove mention of q8
  ARM: dts: sun5i: reference-design-tablet: Set lradc vref to avcc
  ARM: dts: sun5i: Rename sun5i-q8-common.dtsi sun5i-reference-design-tablet.dtsi
  ARM: dts: sun5i: Move q8 display bits to sun5i-a13-q8-tablet.dts
  ARM: dts: sunxi: Rename sunxi-q8-common.dtsi sunxi-reference-design-tablet.dtsi
  ARM: dts: at91: Don't build unnecessary dtbs
  ARM: dts: at91: sama5d3x: separate motherboard gmac and emac definitions
  ARM: dts: at91: at91sam9g25ek: fix isi endpoint node
  ARM: dts: at91: move isi definition to at91sam9g25ek
  ARM: dts: at91: fix i2c-gpio node name
  ARM: dts: at91: vinco: fix regulator name
  ARM: dts: at91: ariag25 : fix onewire node
  ...
2016-08-01 18:37:45 -04:00
Linus Torvalds
43a0a98aa8 ARM: SoC driver updates for v4.8
Driver updates for ARM SoCs.
 
 A slew of changes this release cycle. The reset driver tree, that we merge
 through arm-soc for historical reasons, is also sizable this time around.
 
 Among the changes:
 
  - clps711x: Treewide changes to compatible strings, merged here for simplicity.
  - Qualcomm: SCM firmware driver cleanups, move to platform driver
  - ux500: Major cleanups, removal of old mach-specific infrastructure.
  - Atmel external bus memory driver
  - Move of brcmstb platform to the rest of bcm
  - PMC driver updates for tegra, various fixes and improvements
  - Samsung platform driver updates to support 64-bit Exynos platforms
  - Reset controller cleanups moving to devm_reset_controller_register() APIs
  - Reset controller driver for Amlogic Meson
  - Reset controller driver for Hisilicon hi6220
  - ARM SCPI power domain support
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Driver updates for ARM SoCs.

  A slew of changes this release cycle.  The reset driver tree, that we
  merge through arm-soc for historical reasons, is also sizable this
  time around.

  Among the changes:

   - clps711x: Treewide changes to compatible strings, merged here for simplicity.
   - Qualcomm: SCM firmware driver cleanups, move to platform driver
   - ux500: Major cleanups, removal of old mach-specific infrastructure.
   - Atmel external bus memory driver
   - Move of brcmstb platform to the rest of bcm
   - PMC driver updates for tegra, various fixes and improvements
   - Samsung platform driver updates to support 64-bit Exynos platforms
   - Reset controller cleanups moving to devm_reset_controller_register() APIs
   - Reset controller driver for Amlogic Meson
   - Reset controller driver for Hisilicon hi6220
   - ARM SCPI power domain support"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits)
  ARM: ux500: consolidate base platform files
  ARM: ux500: move soc_id driver to drivers/soc
  ARM: ux500: call ux500_setup_id later
  ARM: ux500: consolidate soc_device code in id.c
  ARM: ux500: remove cpu_is_u* helpers
  ARM: ux500: use CLK_OF_DECLARE()
  ARM: ux500: move l2x0 init to .init_irq
  mfd: db8500 stop passing around platform data
  ASoC: ab8500-codec: remove platform data based probe
  ARM: ux500: move ab8500_regulator_plat_data into driver
  ARM: ux500: remove unused regulator data
  soc: raspberrypi-power: add CONFIG_OF dependency
  firmware: scpi: add CONFIG_OF dependency
  video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
  input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip
  pwm: clps711x: Changing the compatibility string to match with the smallest supported chip
  serial: clps711x: Changing the compatibility string to match with the smallest supported chip
  irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip
  clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip
  clk: clps711x: Changing the compatibility string to match with the smallest supported chip
  ...
2016-08-01 18:36:01 -04:00
Linus Torvalds
6911a52814 ARM: SoC defconfig updates for v4.8
Defconfig additions, removals, etc. Most of these are small changes adding
 the options for newly upstreamed drivers, or drivers needed for new board
 support.
 
 - Removed Broadcom bcm_defconfig, targets are all covered in multi_v7_defconfig
 - New defconfig: multi_v4t_defconfig
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Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC defconfig updates from Olof Johansson:
 "Defconfig additions, removals, etc.

  Most of these are small changes adding the options for newly
  upstreamed drivers, or drivers needed for new board support.

  - removed Broadcom bcm_defconfig, targets are all covered in
    multi_v7_defconfig

  - new defconfig: multi_v4t_defconfig"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
  ARM: multi_v7_defconfig: enable STMicroelectronics DRM Support
  ARM: multi_v7_defconfig: enable STMicroelectronics BDISP 2D blitter driver
  ARM: omap2plus_defconfig: Fix USB selection to keep Ethernet working
  ARM: configs: lpc18xx: enable adc and dac iio drivers
  ARM: config: Add a multi_v4t_defconfig
  ARM: multi_v7_defconfig: add ACT8945A
  ARM: at91/defconfig: Add ACT8945A driver
  ARM: imx_v6_v7_defconfig: Select ADS7846 support
  ARM: configs: qualcomm: Add MDM9615 missing defconfigs
  ARM: multi_v7_defconfig: Enable vivid driver as a module
  ARM: exynos_defconfig: Enable vivid driver as a module
  ARM: defconfig: enable the MSM8660 pin controller
  ARM: imx_v6_v7_defconfig: enable USB FFS gadget
  ARM: socfpga: enable PL330 DMA in socfpga_defconfig
  ARM: socfpga: add PCIe to socfpga_defconfig
  ARM: multi_v7_defconfig: defconfig: Enable r8a7792 SoC
  ARM: shmobile: defconfig: Enable r8a7792 SoC
  ARM: Remove bcm_defconfig
  ARM: multi_v7_defconfig: Enable Broadcom Kona watchdog
  ARM: multi_v7_defconfig: Enable Broadcom STB PWM
  ...
2016-08-01 18:30:44 -04:00
Linus Torvalds
3fbff9c874 ARM: SoC 64-bit changes for v4.8
Changes to platform code for 64-bit ARM platforms.
 
 Nearlt all of these are defconfig updates to enable new drivers or old
 drivers still used on these 64-bit platforms.
 
 Added platforms for this release are:
 
  - Broadcom BCM2837
  - Renesas R8A7796
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Merge tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull 64-bit ARM SoC updates from Olof Johansson:
 "Changes to platform code for 64-bit ARM platforms.

  Nearly all of these are defconfig updates to enable new drivers or old
  drivers still used on these 64-bit platforms.

  Added platforms for this release are:

   - Broadcom BCM2837
   - Renesas R8A7796"

* tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
  arm64: remove duplicate PWM entry in defconfig
  arm64: Update default configuration
  arm64: defconfig: Enable more IP blocks for Exynos7 and Exynos5433
  arm64: amlogic: select gxbb clk driver
  arm64: defconfig: Enable S2MPS11 clock and S3C RTC driver
  arm64: marvell: enable Armada 3700 clock drivers
  arm64: defconfig: enable msm8996 pinctrl support
  arm64: defconfig: Enable qcom msm8996 clk drivers
  arm: defconfig: Enable PM8941 pwr key
  arm64: defconfig: enable stmmac and realtek PHY as modules
  arm64: Kconfig: select PM{,_GENERIC_DOMAINS} for ARCH_VEXPRESS
  arm64: defconfig: enable SENSORS_ARM_SCPI
  arm64: defconfig: enable Generic on-chip SRAM driver
  arm64: configs: enable PCIe driver for Armada 7K/8K
  arm64: Add platform selection for BCM2835.
  arm64: defconfig: disable plain NEON implementation of AES
  arm64: Allow for different DMA and CPU bus offsets
  arm64: defconfig: enable Renesas R8A7796 SoC
  arm64: defconfig: Enable Cadence MACB/GEM support
  ARM64: Kconfig: Select the Amlogic Meson pin controller driver
  ...
2016-08-01 18:29:28 -04:00
Linus Torvalds
fbae5cbb43 ARM: SoC platform updates for v4.8
Improved and new platform support for various SoCs:
 
  - New SoC support:
    - Broadcom BCM23550
    - Freescale i.MX7Solo
    - Qualcomm MDM9615
    - Renesas r8a7792
  - Conversion of clps711x to multiplatform
  - debug uart improvements for Atmel platforms
  - Tango platform improvements: HOTPLUG_CPU, Suspend-to-ram
  - OMAP tweaks and improvements to hwmod
  - OMAP support for kexec on SMP
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "Improved and new platform support for various SoCs:

  New SoC support:
   - Broadcom BCM23550
   - Freescale i.MX7Solo
   - Qualcomm MDM9615
   - Renesas r8a7792

  Improvements:
   - convert clps711x to multiplatform
   - debug uart improvements for Atmel platforms
   - Tango platform improvements: HOTPLUG_CPU, Suspend-to-ram
   - OMAP tweaks and improvements to hwmod
   - OMAP support for kexec on SMP"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (109 commits)
  ARM: davinci: fix build break because of undeclared dm365_evm_snd_data
  ARM: s3c64xx: smartq: Avoid sparse warnings
  ARM: sti: Implement dummy L2 cache's write_sec
  ARM: STi: Update machine _namestr to be more generic.
  arm: meson: explicitly select clk drivers
  ARM: tango: add Suspend-to-RAM support
  ARM: hisi: consolidate the hisilicon machine entries
  ARM: tango: fix CONFIG_HOTPLUG_CPU=n build
  MAINTAINERS: Update BCM281XX/BCM11XXX/BCM216XX entry
  MAINTAINERS: Update BCM63XX entry
  MAINTAINERS: Add NS2 entry
  MAINTAINERS: Fix nsp false-positives
  MAINTAINERS: Change L to M for Broadcom ARM/ARM64 SoC entries
  ARM: debug: Enable DEBUG_BCM_5301X for Northstar Plus SoCs
  ARM: clps711x: Switch to MULTIPLATFORM
  ARM: clps711x: Remove boards support
  ARM: clps711x: Add basic DT support
  ARM: clps711x: Reduce static map size
  ARM: SAMSUNG: Constify iomem address passed to s5p_init_cpu
  ARM: oxnas: Change OX810SE default driver config
  ...
2016-08-01 18:27:08 -04:00
Linus Torvalds
6f888fe31d ARM: SoC cleanups for v4.8
The cleanup branch keeps going down in size as we've completed a lot of
 the major legacy platform removals and conversions.
 
 A handful of changes this time around, some of the themes or larger sets are:
 
  - A bunch of i.MX cleanups around platform detection, init call cleanups
  - Misc fixes of missing/implicit includes
  - Removal of ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "The cleanup branch keeps going down in size as we've completed a lot
  of the major legacy platform removals and conversions.

  A handful of changes this time around, some of the themes or larger
  sets are:

   - A bunch of i.MX cleanups around platform detection, init call cleanups
   - Misc fixes of missing/implicit includes
   - Removal of ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (40 commits)
  ARM: mps2: fix typo
  ARM: s3c64xx: avoid warning about 'struct device_node'
  bus: mvebu-mbus: make mvebu_mbus_syscore_ops static
  bus: mvebu-mbus: fix __iomem on register pointers
  ARM: tegra: Remove board_init_funcs array
  ARM: iop: Fix indentation
  ARM: imx: remove cpu_is_mx*()
  ARM: imx: remove last call to cpu_is_mx5*
  ARM: imx: rework mx27_pm_init() call
  ARM: imx: deconstruct mx3_idle
  ARM: imx: deconstruct mxc_rnga initialization
  ARM: imx: remove cpu_is_mx1 check
  ARM: i.MX: Do not explicitly call l2x0_of_init()
  ARM: i.MX: system.c: Tweak prefetch settings for performance
  ARM: i.MX: system.c: Replace magic numbers
  ARM: i.MX: system.c: Remove redundant errata 752271 code
  ARM: i.MX: system.c: Convert goto to if statement
  ARM: Kirkwood: fix kirkwood_pm_init() declaration/type
  ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() static
  ARM: orion5x: make orion5x_legacy_handle_irq static
  ...
2016-08-01 18:21:13 -04:00
Trond Myklebust
c7995f8a70 SUNRPC: Detect immediate closure of accepted sockets
This modification is useful for debugging issues that happen while
the socket is being initialised.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2016-08-01 17:53:42 -04:00