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97,566 commits

Author SHA1 Message Date
Eric Dumazet
50895b9de1 tcp: highest_sack fix
syzbot easily found a regression added in our latest patches [1]

No longer set tp->highest_sack to the head of the send queue since
this is not logical and error prone.

Only sack processing should maintain the pointer to an skb from rtx queue.

We might in the future only remember the sequence instead of a pointer to skb,
since rb-tree should allow a fast lookup.

[1]
BUG: KASAN: use-after-free in tcp_highest_sack_seq include/net/tcp.h:1706 [inline]
BUG: KASAN: use-after-free in tcp_ack+0x42bb/0x4fd0 net/ipv4/tcp_input.c:3537
Read of size 4 at addr ffff8801c154faa8 by task syz-executor4/12860

CPU: 0 PID: 12860 Comm: syz-executor4 Not tainted 4.14.0-next-20171113+ #41
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 print_address_description+0x73/0x250 mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report+0x25b/0x340 mm/kasan/report.c:409
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:429
 tcp_highest_sack_seq include/net/tcp.h:1706 [inline]
 tcp_ack+0x42bb/0x4fd0 net/ipv4/tcp_input.c:3537
 tcp_rcv_established+0x672/0x18a0 net/ipv4/tcp_input.c:5439
 tcp_v4_do_rcv+0x2ab/0x7d0 net/ipv4/tcp_ipv4.c:1468
 sk_backlog_rcv include/net/sock.h:909 [inline]
 __release_sock+0x124/0x360 net/core/sock.c:2264
 release_sock+0xa4/0x2a0 net/core/sock.c:2778
 tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1462
 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763
 sock_sendmsg_nosec net/socket.c:632 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:642
 ___sys_sendmsg+0x75b/0x8a0 net/socket.c:2048
 __sys_sendmsg+0xe5/0x210 net/socket.c:2082
 SYSC_sendmsg net/socket.c:2093 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2089
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452879
RSP: 002b:00007fc9761bfbe8 EFLAGS: 00000212 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452879
RDX: 0000000000000000 RSI: 0000000020917fc8 RDI: 0000000000000015
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ee3a0
R13: 00000000ffffffff R14: 00007fc9761c06d4 R15: 0000000000000000

Allocated by task 12860:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
 kmem_cache_alloc_node+0x144/0x760 mm/slab.c:3638
 __alloc_skb+0xf1/0x780 net/core/skbuff.c:193
 alloc_skb_fclone include/linux/skbuff.h:1023 [inline]
 sk_stream_alloc_skb+0x11d/0x900 net/ipv4/tcp.c:870
 tcp_sendmsg_locked+0x1341/0x3b80 net/ipv4/tcp.c:1299
 tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1461
 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763
 sock_sendmsg_nosec net/socket.c:632 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:642
 SYSC_sendto+0x358/0x5a0 net/socket.c:1749
 SyS_sendto+0x40/0x50 net/socket.c:1717
 entry_SYSCALL_64_fastpath+0x1f/0x96

Freed by task 12860:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3492 [inline]
 kmem_cache_free+0x77/0x280 mm/slab.c:3750
 kfree_skbmem+0xdd/0x1d0 net/core/skbuff.c:603
 __kfree_skb+0x1d/0x20 net/core/skbuff.c:642
 sk_wmem_free_skb include/net/sock.h:1419 [inline]
 tcp_rtx_queue_unlink_and_free include/net/tcp.h:1682 [inline]
 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3111 [inline]
 tcp_ack+0x1b17/0x4fd0 net/ipv4/tcp_input.c:3593
 tcp_rcv_established+0x672/0x18a0 net/ipv4/tcp_input.c:5439
 tcp_v4_do_rcv+0x2ab/0x7d0 net/ipv4/tcp_ipv4.c:1468
 sk_backlog_rcv include/net/sock.h:909 [inline]
 __release_sock+0x124/0x360 net/core/sock.c:2264
 release_sock+0xa4/0x2a0 net/core/sock.c:2778
 tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1462
 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763
 sock_sendmsg_nosec net/socket.c:632 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:642
 ___sys_sendmsg+0x75b/0x8a0 net/socket.c:2048
 __sys_sendmsg+0xe5/0x210 net/socket.c:2082
 SYSC_sendmsg net/socket.c:2093 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2089
 entry_SYSCALL_64_fastpath+0x1f/0x96

The buggy address belongs to the object at ffff8801c154fa80
 which belongs to the cache skbuff_fclone_cache of size 456
The buggy address is located 40 bytes inside of
 456-byte region [ffff8801c154fa80, ffff8801c154fc48)
The buggy address belongs to the page:
page:ffffea00070553c0 count:1 mapcount:0 mapping:ffff8801c154f080 index:0x0
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801c154f080 0000000000000000 0000000100000006
raw: ffffea00070a5a20 ffffea0006a18360 ffff8801d9ca0500 0000000000000000
page dumped because: kasan: bad access detected

Fixes: 737ff31456 ("tcp: use sequence distance to detect reordering")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-15 19:48:42 +09:00
Jiri Kosina
01125b2d1f Merge branch 'for-4.15/wacom' into for-linus
- High resolution mode for DEll canvas support, from Benjamin Tissoires
- A lot of improvements to pen handling in the Wacom driver, from Jason Gerecke

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-11-15 11:14:23 +01:00
Jiri Kosina
6ed7a70be5 Merge branch 'for-4.15/upstream' into for-linus
- cp2112: GPIO error handling and Kconfig fixes from Sébastien Szymanski
- i2c-hid: fixup / quirk for Apollo-Lake based laptops, from Hans de Goede
- Input/Core: add eraser tool support, from Ping Cheng
- small assorted code fixes

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-11-15 11:10:38 +01:00
Jiri Kosina
ea3bbd0a21 Merge branch 'for-4.15/multitouch' into for-linus
- make sure that we forward MSC_TIMESTAMP in accordance to the specification,
  from Nicolas Boichat

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-11-15 11:09:23 +01:00
Stephen Hemminger
6670e15244 tcp: Namespace-ify sysctl_tcp_default_congestion_control
Make default TCP default congestion control to a per namespace
value. This changes default congestion control to a pointer to congestion ops
(rather than implicit as first element of available lsit).

The congestion control setting of new namespaces is inherited
from the current setting of the root namespace.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-15 14:09:52 +09:00
Dmitry V. Levin
b9f3eb499d uapi: fix linux/tls.h userspace compilation error
Move inclusion of a private kernel header <net/tcp.h>
from uapi/linux/tls.h to its only user - net/tls.h,
to fix the following linux/tls.h userspace compilation error:

/usr/include/linux/tls.h:41:21: fatal error: net/tcp.h: No such file or directory

As to this point uapi/linux/tls.h was totaly unusuable for userspace,
cleanup this header file further by moving other redundant includes
to net/tls.h.

Fixes: 3c4d755915 ("tls: kernel TLS support")
Cc: <stable@vger.kernel.org> # v4.13+
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-15 13:54:18 +09:00
Dmitry V. Levin
0eef304bc9 uapi: fix linux/rxrpc.h userspace compilation errors
Consistently use types provided by <linux/types.h> to fix the following
linux/rxrpc.h userspace compilation errors:

/usr/include/linux/rxrpc.h:24:2: error: unknown type name 'u16'
  u16  srx_service; /* service desired */
/usr/include/linux/rxrpc.h:25:2: error: unknown type name 'u16'
  u16  transport_type; /* type of transport socket (SOCK_DGRAM) */
/usr/include/linux/rxrpc.h:26:2: error: unknown type name 'u16'
  u16  transport_len; /* length of transport address */

Use __kernel_sa_family_t instead of sa_family_t the same way
as uapi/linux/in.h does, to fix the following
linux/rxrpc.h userspace compilation errors:

/usr/include/linux/rxrpc.h:23:2: error: unknown type name 'sa_family_t'
  sa_family_t srx_family; /* address family */
/usr/include/linux/rxrpc.h:28:3: error: unknown type name 'sa_family_t'
  sa_family_t family;  /* transport address family */

Fixes: 727f891447 ("rxrpc: Expose UAPI definitions to userspace")
Cc: <stable@vger.kernel.org> # v4.14
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-15 13:50:13 +09:00
Linus Torvalds
37cb8e1f8e DeviceTree for 4.15:
- kbuild cleanups and improvements for dtbs
 
 - Code clean-up of overlay code and fixing for some long standing memory
   leak and race condition in applying overlays
 
 - Improvements to DT memory usage making sysfs/kobjects optional and
   skipping unflattening of disabled nodes. This is part of kernel
   tinification efforts.
 
 - Final piece of removing storing the full path for every DT node. The
   prerequisite conversion of printk's to use device_node format
   specifier happened in 4.14.
 
 - Sync with current upstream dtc. This brings additional checks to dtb
   compiling.
 
 - Binding doc tree wide removal of leading 0s from examples
 
 - RTC binding documentation adding missing devices and some
   consolidation of duplicated bindings
 
 - Vendor prefix documentation for nutsboard, Silicon Storage Technology,
   shimafuji, Tecon Microprocessor Technologies, DH electronics GmbH,
   Opal Kelly, and Next Thing
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Merge tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:
 "A bigger diffstat than usual with the kbuild changes and a tree wide
  fix in the binding documentation.

  Summary:

   - kbuild cleanups and improvements for dtbs

   - Code clean-up of overlay code and fixing for some long standing
     memory leak and race condition in applying overlays

   - Improvements to DT memory usage making sysfs/kobjects optional and
     skipping unflattening of disabled nodes. This is part of kernel
     tinification efforts.

   - Final piece of removing storing the full path for every DT node.
     The prerequisite conversion of printk's to use device_node format
     specifier happened in 4.14.

   - Sync with current upstream dtc. This brings additional checks to
     dtb compiling.

   - Binding doc tree wide removal of leading 0s from examples

   - RTC binding documentation adding missing devices and some
     consolidation of duplicated bindings

   - Vendor prefix documentation for nutsboard, Silicon Storage
     Technology, shimafuji, Tecon Microprocessor Technologies, DH
     electronics GmbH, Opal Kelly, and Next Thing"

* tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (55 commits)
  dt-bindings: usb: add #phy-cells to usb-nop-xceiv
  dt-bindings: Remove leading zeros from bindings notation
  kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib
  MIPS: dts: remove bogus bcm96358nb4ser.dtb from dtb-y entry
  kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile
  .gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore
  .gitignore: sort normal pattern rules alphabetically
  dt-bindings: add vendor prefix for Next Thing Co.
  scripts/dtc: Update to upstream version v1.4.5-6-gc1e55a5513e9
  of: dynamic: fix memory leak related to properties of __of_node_dup
  of: overlay: make pr_err() string unique
  of: overlay: pr_err from return NOTIFY_OK to overlay apply/remove
  of: overlay: remove unneeded check for NULL kbasename()
  of: overlay: remove a dependency on device node full_name
  of: overlay: simplify applying symbols from an overlay
  of: overlay: avoid race condition between applying multiple overlays
  of: overlay: loosen overly strict phandle clash check
  of: overlay: expand check of whether overlay changeset can be removed
  of: overlay: detect cases where device tree may become corrupt
  of: overlay: minor restructuring
  ...
2017-11-14 18:25:40 -08:00
Linus Torvalds
6a77d86655 LED updates for 4.15rc1
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Merge tag 'leds_for_4.15rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds

Pull LED updates from Jacek Anaszewski:
 "New LED class driver:
   - add a driver for PC Engines APU/APU2 LEDs

  New LED trigger:
   - add a system activity LED trigger

  LED core improvements:
   - replace flags bit shift with BIT() macros

  Convert timers to use timer_setup() in:
   - led-core
   - ledtrig-activity
   - ledtrig-heartbeat
   - ledtrig-transient

  LED class drivers fixes:
   - lp55xx: fix spelling mistake: 'cound' -> 'could'
   - tca6507: Remove unnecessary reg check
   - pca955x: Don't invert requested value in pca955x_gpio_set_value()

  LED documentation improvements:
   - update 00-INDEX file"

* tag 'leds_for_4.15rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
  leds: Add driver for PC Engines APU/APU2 LEDs
  leds: lp55xx: fix spelling mistake: 'cound' -> 'could'
  leds: Convert timers to use timer_setup()
  Documentation: leds: Update 00-INDEX file
  leds: tca6507: Remove unnecessary reg check
  leds: ledtrig-heartbeat: Convert timers to use timer_setup()
  leds: Replace flags bit shift with BIT() macros
  leds: pca955x: Don't invert requested value in pca955x_gpio_set_value()
  leds: ledtrig-activity: Add a system activity LED trigger
2017-11-14 18:09:31 -08:00
Linus Torvalds
9f7a9b1191 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - three new touchscreen drivers: EETI EXC3000, HiDeep, and Samsung
   S6SY761

 - the timer API conversion (setup_timer() -> timer_setup())

 - a few drivers swiytched to using managed API for creating custom
   device attributes

 - other assorted fixed and cleanups.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (50 commits)
  Input: gamecon - mark expected switch fall-throughs
  Input: sidewinder - mark expected switch fall-throughs
  Input: spaceball - mark expected switch fall-throughs
  Input: uinput - unlock on allocation failure in ioctl
  Input: add support for the Samsung S6SY761 touchscreen
  Input: add support for HiDeep touchscreen
  Input: st1232 - remove obsolete platform device support
  Input: convert autorepeat timer to use timer_setup()
  media: ttpci: remove autorepeat handling and use timer_setup
  Input: cyttsp4 - avoid overflows when calculating memory sizes
  Input: mxs-lradc - remove redundant assignment to pointer input
  Input: add I2C attached EETI EXC3000 multi touch driver
  Input: goodix - support gt1151 touchpanel
  Input: ps2-gpio - actually abort probe when connected to sleeping GPIOs
  Input: hil_mlc - convert to using timer_setup()
  Input: hp_sdc - convert to using timer_setup()
  Input: touchsceen - convert timers to use timer_setup()
  Input: keyboard - convert timers to use timer_setup()
  Input: uinput - fold header into the driver proper
  Input: uinput - remove uinput_allocate_device()
  ...
2017-11-14 18:07:18 -08:00
Linus Torvalds
4e4510fec4 sound updates for 4.15-rc1
There are no big surprising changes in this cycle, yet not too
 boring, either.  The biggest change from diffstat POV is the removal
 of the legacy OSS driver codes that have been already disabled for a
 long time.  This will bring a few trivial merge conflicts.
 
 As new features in ASoC side, there are two things: a new AC97 bus
 implementation and AMD Stony platform support.  Both include the
 relevant changes shared with other subsystems, e.g. AC97 MFD changes
 and DRM AMD changes.
 
 Some other highlighted topics are:
 - A bunch of USB-audio drivers got the hardening against the malicious
   device accesses with a new helper code for endpoint sanity check.
 - Lots of cleanups for ASoC Intel platform code, including support for
   their open source audio firmware.
 - Continued ASoC core componentization works.
 - Support for scaling MCLK with sample rate in ASoC simple-card.
 - Stabler PCM hot-unplug capability, especially for ASoC usages.
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Merge tag 'sound-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "There are no big surprising changes in this cycle, yet not too boring,
  either. The biggest change from diffstat POV is the removal of the
  legacy OSS driver codes that have been already disabled for a long
  time. This will bring a few trivial merge conflicts.

  As new features in ASoC side, there are two things: a new AC97 bus
  implementation and AMD Stony platform support. Both include the
  relevant changes shared with other subsystems, e.g. AC97 MFD changes
  and DRM AMD changes.

  Some other highlighted topics are:

   - A bunch of USB-audio drivers got the hardening against the
     malicious device accesses with a new helper code for endpoint
     sanity check

   - Lots of cleanups for ASoC Intel platform code, including support
     for their open source audio firmware

   - Continued ASoC core componentization works

   - Support for scaling MCLK with sample rate in ASoC simple-card

   - Stabler PCM hot-unplug capability, especially for ASoC usages"

* tag 'sound-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (302 commits)
  Documentation: sound: hd-audio: notes.rst
  ASoC: bcm2835: Support left/right justified and DSP modes
  ASoC: bcm2835: Enforce full symmetry
  ASoC: bcm2835: Support additional samplerates up to 384kHz
  ASoC: bcm2835: Add support for TDM modes
  ASoC: add mclk-fs support to audio graph card
  ASoC: add mclk-fs to audio graph card binding
  ASoC: rt5514: work around link error
  ASoC: rt5514: mark PM functions as __maybe_unused
  ASoC: rt5663: Check the JD status in the button pushing
  ASoC: amd: Modified DMA transfer Mechanism for Playback
  ASoC: rt5645: Wait for 400msec before concluding on value of RT5645_VENDOR_ID2
  ASoC: sun4i-codec: fixed 32bit audio capture support for H3/H2+
  ASoC: da7213: add support for DSP modes
  ASoC: sun8i-codec: Add a comment on the LRCK inversion
  ASoC: sun8i-codec: Set the BCLK divider
  ASoC: rt5663: Delay and retry reading rt5663 ID register
  ASoC: amd: use do_div rather than 64 bit division to fix 32 bit builds
  ASoC: cs42l56: Fix reset GPIO name in example DT binding
  ASoC: rt5514-spi: check irq status to schedule data copy in resume function
  ...
2017-11-14 18:01:46 -08:00
Linus Torvalds
4008e6a9bc Merge branch 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
 "This contains two bigger than usual tree-wide changes this time. They
  all have proper acks, caused no merge conflicts in linux-next where
  they have been for a while. They are namely:

   - to-gpiod conversion of the i2c-gpio driver and its users (touching
     arch/* and drivers/mfd/*)

   - adding a sbs-manager based on I2C core updates to SMBus alerts
     (touching drivers/power/*)

  Other notable changes:

   - i2c_boardinfo can now carry a dev_name to be used when the device
     is created. This is because some devices in ACPI world need fixed
     names to find the regulators.

   - the designware driver got a long discussed overhaul of its PM
     handling. img-scb and davinci got PM support, too.

   - at24 driver has way better OF support. And it has a new maintainer.
     Thanks Bartosz for stepping up!

  The rest is regular driver updates and fixes"

* 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (55 commits)
  ARM: sa1100: simpad: Correct I2C GPIO offsets
  i2c: aspeed: Deassert reset in probe
  eeprom: at24: Add OF device ID table
  MAINTAINERS: new maintainer for AT24 driver
  i2c: nuc900: remove platform_data, too
  i2c: thunderx: Remove duplicate NULL check
  i2c: taos-evm: Remove duplicate NULL check
  i2c: Make i2c_unregister_device() NULL-aware
  i2c: xgene-slimpro: Support v2
  i2c: mpc: remove useless variable initialization
  i2c: omap: Trigger bus recovery in lockup case
  i2c: gpio: Add support for named gpios in DT
  dt-bindings: i2c: i2c-gpio: Add support for named gpios
  i2c: gpio: Local vars in probe
  i2c: gpio: Augment all boardfiles to use open drain
  i2c: gpio: Enforce open drain through gpiolib
  gpio: Make it possible for consumers to enforce open drain
  i2c: gpio: Convert to use descriptors
  power: supply: sbs-message: fix some code style issues
  power: supply: sbs-battery: remove unchecked return var
  ...
2017-11-14 17:52:21 -08:00
Linus Torvalds
6aa2f9441f This is the bulk of GPIO changes for the v4.15 kernel cycle:
CORE:
 - Fix the semantics of raw GPIO to actually be raw. No
   inversion semantics as before, but also no open draining,
   and allow the raw operations to affect lines used for
   interrupts as the caller supposedly knows what they are
   doing if they are getting the big hammer.
 
 - Rewrote the __inner_function() notation calls to names that
   make more sense. I just find this kind of code disturbing.
 
 - Drop the .irq_base() field from the gpiochip since now all
   IRQs are mapped dynamically. This is nice.
 
 - Support for .get_multiple() in the core driver API. This
   allows us to read several GPIO lines with a single
   register read. This has high value for some usecases: it
   can be used to create oscilloscopes and signal analyzers
   and other things that rely on reading several lines at
   exactly the same instant. Also a generally nice
   optimization. This uses the new assign_bit() macro from
   the bitops lib that was ACKed by Andrew Morton and
   is implemented for two drivers, one of them being the
   generic MMIO driver so everyone using that will be able
   to benefit from this.
 
 - Do not allow requests of Open Drain and Open Source
   setting of a GPIO line simultaneously. If the hardware
   actually supports enabling both at the same time the
   electrical result would be disastrous.
 
 - A new interrupt chip core helper. This will be helpful
   to deal with "banked" GPIOs, which means GPIO controllers
   with several logical blocks of GPIO inside them. This
   is several gpiochips per device in the device model, in
   contrast to the case when there is a 1-to-1 relationship
   between a device and a gpiochip.
 
 NEW DRIVERS:
 
 - Maxim MAX3191x industrial serializer, a very interesting
   piece of professional I/O hardware.
 
 - Uniphier GPIO driver. This is the GPIO block from the
   recent Socionext (ex Fujitsu and Panasonic) platform.
 
 - Tegra 186 driver. This is based on the new banked GPIO
   infrastructure.
 
 OTHER IMPROVEMENTS:
 
 - Some documentation improvements.
 
 - Wakeup support for the DesignWare DWAPB GPIO controller.
 
 - Reset line support on the DesignWare DWAPB GPIO controller.
 
 - Several non-critical bug fixes and improvements for the
   Broadcom BRCMSTB driver.
 
 - Misc non-critical bug fixes like exotic errorpaths, removal
   of dead code etc.
 
 - Explicit comments on fall-through switch() statements.
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Merge tag 'gpio-v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.15 kernel cycle:

  Core:

   - Fix the semantics of raw GPIO to actually be raw. No inversion
     semantics as before, but also no open draining, and allow the raw
     operations to affect lines used for interrupts as the caller
     supposedly knows what they are doing if they are getting the big
     hammer.

   - Rewrote the __inner_function() notation calls to names that make
     more sense. I just find this kind of code disturbing.

   - Drop the .irq_base() field from the gpiochip since now all IRQs are
     mapped dynamically. This is nice.

   - Support for .get_multiple() in the core driver API. This allows us
     to read several GPIO lines with a single register read. This has
     high value for some usecases: it can be used to create
     oscilloscopes and signal analyzers and other things that rely on
     reading several lines at exactly the same instant. Also a generally
     nice optimization. This uses the new assign_bit() macro from the
     bitops lib that was ACKed by Andrew Morton and is implemented for
     two drivers, one of them being the generic MMIO driver so everyone
     using that will be able to benefit from this.

   - Do not allow requests of Open Drain and Open Source setting of a
     GPIO line simultaneously. If the hardware actually supports
     enabling both at the same time the electrical result would be
     disastrous.

   - A new interrupt chip core helper. This will be helpful to deal with
     "banked" GPIOs, which means GPIO controllers with several logical
     blocks of GPIO inside them. This is several gpiochips per device in
     the device model, in contrast to the case when there is a 1-to-1
     relationship between a device and a gpiochip.

  New drivers:

   - Maxim MAX3191x industrial serializer, a very interesting piece of
     professional I/O hardware.

   - Uniphier GPIO driver. This is the GPIO block from the recent
     Socionext (ex Fujitsu and Panasonic) platform.

   - Tegra 186 driver. This is based on the new banked GPIO
     infrastructure.

  Other improvements:

   - Some documentation improvements.

   - Wakeup support for the DesignWare DWAPB GPIO controller.

   - Reset line support on the DesignWare DWAPB GPIO controller.

   - Several non-critical bug fixes and improvements for the Broadcom
     BRCMSTB driver.

   - Misc non-critical bug fixes like exotic errorpaths, removal of dead
     code etc.

   - Explicit comments on fall-through switch() statements"

* tag 'gpio-v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (65 commits)
  gpio: tegra186: Remove tegra186_gpio_lock_class
  gpio: rcar: Add r8a77995 (R-Car D3) support
  pinctrl: bcm2835: Fix some merge fallout
  gpio: Fix undefined lock_dep_class
  gpio: Automatically add lockdep keys
  gpio: Introduce struct gpio_irq_chip.first
  gpio: Disambiguate struct gpio_irq_chip.nested
  gpio: Add Tegra186 support
  gpio: Export gpiochip_irq_{map,unmap}()
  gpio: Implement tighter IRQ chip integration
  gpio: Move lock_key into struct gpio_irq_chip
  gpio: Move irq_valid_mask into struct gpio_irq_chip
  gpio: Move irq_nested into struct gpio_irq_chip
  gpio: Move irq_chained_parent to struct gpio_irq_chip
  gpio: Move irq_default_type to struct gpio_irq_chip
  gpio: Move irq_handler to struct gpio_irq_chip
  gpio: Move irqdomain into struct gpio_irq_chip
  gpio: Move irqchip into struct gpio_irq_chip
  gpio: Introduce struct gpio_irq_chip
  pinctrl: armada-37xx: remove unused variable
  ...
2017-11-14 17:23:44 -08:00
Linus Torvalds
e37e0ee019 A couple of dma-mapping updates:
- turn dma_cache_sync into a dma_map_ops instance and remove
    implementation that purely are dead because the architecture
    doesn't support noncoherent allocations
  - add a flag for busses that need DMA configuration (Robin Murphy)
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Merge tag 'dma-mapping-4.15' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - turn dma_cache_sync into a dma_map_ops instance and remove
   implementation that purely are dead because the architecture doesn't
   support noncoherent allocations

 - add a flag for busses that need DMA configuration (Robin Murphy)

* tag 'dma-mapping-4.15' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: turn dma_cache_sync into a dma_map_ops method
  sh: make dma_cache_sync a no-op
  xtensa: make dma_cache_sync a no-op
  unicore32: make dma_cache_sync a no-op
  powerpc: make dma_cache_sync a no-op
  mn10300: make dma_cache_sync a no-op
  microblaze: make dma_cache_sync a no-op
  ia64: make dma_cache_sync a no-op
  frv: make dma_cache_sync a no-op
  x86: make dma_cache_sync a no-op
  floppy: consolidate the dummy fd_cacheflush definition
  drivers: flag buses which demand DMA configuration
2017-11-14 16:54:12 -08:00
Linus Torvalds
23c258763b dmaengine updates for 4.15-rc1
Updates for this cycle include:
 - New driver for Spreadtrum dma controller, ST MDMA and DMAMUX controllers
 - PM support for IMG MDC drivers
 - Updates to bcm-sba-raid driver and improvements to sun6i driver
 - Subsystem conversion for:
   - timers to use timer_setup()
   - remove usage of PCI pool API
   - usage of %p format specifier
 - Minor updates to bunch of drivers
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Merge tag 'dmaengine-4.15-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:
 "Updates for this cycle include:

   - new driver for Spreadtrum dma controller, ST MDMA and DMAMUX
     controllers

   - PM support for IMG MDC drivers

   - updates to bcm-sba-raid driver and improvements to sun6i driver

   - subsystem conversion for:
      - timers to use timer_setup()
      - remove usage of PCI pool API
      - usage of %p format specifier

   - minor updates to bunch of drivers"

* tag 'dmaengine-4.15-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (49 commits)
  dmaengine: ti-dma-crossbar: Correct am335x/am43xx mux value type
  dmaengine: dmatest: warn user when dma test times out
  dmaengine: Revert "rcar-dmac: use TCRB instead of TCR for residue"
  dmaengine: stm32_mdma: activate pack/unpack feature
  dmaengine: at_hdmac: Remove unnecessary 0x prefixes before %pad
  dmaengine: coh901318: Remove unnecessary 0x prefixes before %pad
  MAINTAINERS: Step down from a co-maintaner of DW DMAC driver
  dmaengine: pch_dma: Replace PCI pool old API
  dmaengine: Convert timers to use timer_setup()
  dmaengine: sprd: Add Spreadtrum DMA driver
  dt-bindings: dmaengine: Add Spreadtrum SC9860 DMA controller
  dmaengine: sun6i: Retrieve channel count/max request from devicetree
  dmaengine: Build bcm-sba-raid driver as loadable module for iProc SoCs
  dmaengine: bcm-sba-raid: Use common GPL comment header
  dmaengine: bcm-sba-raid: Use only single mailbox channel
  dmaengine: bcm-sba-raid: serialize dma_cookie_complete() using reqs_lock
  dmaengine: pl330: fix descriptor allocation fail
  dmaengine: rcar-dmac: use TCRB instead of TCR for residue
  dmaengine: sun6i: Add support for Allwinner A64 and compatibles
  arm64: allwinner: a64: Add devicetree binding for DMA controller
  ...
2017-11-14 16:49:31 -08:00
Linus Torvalds
2cd83ba5be IOMMU Updates for Linux v4.15
* Enforce MSI multiple IRQ alignment in AMD IOMMU
 
  * VT-d PASID error handling fixes
 
  * Add r8a7795 IPMMU support
 
  * Manage runtime PM links on exynos at {add,remove}_device callbacks
 
  * Fix Mediatek driver name to avoid conflict
 
  * Add terminate support to qcom fault handler
 
  * 64-bit IOVA optimizations
 
  * Simplfy IOVA domain destruction, better use of rcache, and
    skip anchor nodes on copy
 
  * Convert to IOMMU TLB sync API in io-pgtable-arm{-v7s}
 
  * Drop command queue lock when waiting for CMD_SYNC completion on
    ARM SMMU implementations supporting MSI to cacheable memory
 
  * iomu-vmsa cleanup inspired by missed IOTLB sync callbacks
 
  * Fix sleeping lock with preemption disabled for RT
 
  * Dual MMU support for TI DRA7xx DSPs
 
  * Optional flush option on IOVA allocation avoiding overhead when
    caller can try other options
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Merge tag 'iommu-v4.15-rc1' of git://github.com/awilliam/linux-vfio

Pull IOMMU updates from Alex Williamson:
 "As Joerg mentioned[1], he's out on paternity leave through the end of
  the year and I'm filling in for him in the interim:

   - Enforce MSI multiple IRQ alignment in AMD IOMMU

   - VT-d PASID error handling fixes

   - Add r8a7795 IPMMU support

   - Manage runtime PM links on exynos at {add,remove}_device callbacks

   - Fix Mediatek driver name to avoid conflict

   - Add terminate support to qcom fault handler

   - 64-bit IOVA optimizations

   - Simplfy IOVA domain destruction, better use of rcache, and skip
     anchor nodes on copy

   - Convert to IOMMU TLB sync API in io-pgtable-arm{-v7s}

   - Drop command queue lock when waiting for CMD_SYNC completion on ARM
     SMMU implementations supporting MSI to cacheable memory

   - iomu-vmsa cleanup inspired by missed IOTLB sync callbacks

   - Fix sleeping lock with preemption disabled for RT

   - Dual MMU support for TI DRA7xx DSPs

   - Optional flush option on IOVA allocation avoiding overhead when
     caller can try other options

  [1] https://lkml.org/lkml/2017/10/22/72"

* tag 'iommu-v4.15-rc1' of git://github.com/awilliam/linux-vfio: (54 commits)
  iommu/iova: Use raw_cpu_ptr() instead of get_cpu_ptr() for ->fq
  iommu/mediatek: Fix driver name
  iommu/ipmmu-vmsa: Hook up r8a7795 DT matching code
  iommu/ipmmu-vmsa: Allow two bit SL0
  iommu/ipmmu-vmsa: Make IMBUSCTR setup optional
  iommu/ipmmu-vmsa: Write IMCTR twice
  iommu/ipmmu-vmsa: IPMMU device is 40-bit bus master
  iommu/ipmmu-vmsa: Make use of IOMMU_OF_DECLARE()
  iommu/ipmmu-vmsa: Enable multi context support
  iommu/ipmmu-vmsa: Add optional root device feature
  iommu/ipmmu-vmsa: Introduce features, break out alias
  iommu/ipmmu-vmsa: Unify ipmmu_ops
  iommu/ipmmu-vmsa: Clean up struct ipmmu_vmsa_iommu_priv
  iommu/ipmmu-vmsa: Simplify group allocation
  iommu/ipmmu-vmsa: Unify domain alloc/free
  iommu/ipmmu-vmsa: Fix return value check in ipmmu_find_group_dma()
  iommu/vt-d: Clear pasid table entry when memory unbound
  iommu/vt-d: Clear Page Request Overflow fault bit
  iommu/vt-d: Missing checks for pasid tables if allocation fails
  iommu/amd: Limit the IOVA page range to the specified addresses
  ...
2017-11-14 16:43:27 -08:00
Linus Torvalds
670ffccb2f SCSI misc on 20171114
This is mostly updates of the usual suspects: lpfc, qla2xxx, hisi_sas,
 megaraid_sas, pm80xx, mpt3sas, be2iscsi, hpsa. and a host of minor
 updates.
 
 There's no major behaviour change or additions to the core in all of
 this, so the potential for regressions should be small (biggest
 potential being in the scsi error handler changes).
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This is mostly updates of the usual suspects: lpfc, qla2xxx, hisi_sas,
  megaraid_sas, pm80xx, mpt3sas, be2iscsi, hpsa. and a host of minor
  updates.

  There's no major behaviour change or additions to the core in all of
  this, so the potential for regressions should be small (biggest
  potential being in the scsi error handler changes)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (203 commits)
  scsi: lpfc: Fix hard lock up NMI in els timeout handling.
  scsi: mpt3sas: remove a stray KERN_INFO
  scsi: mpt3sas: cleanup _scsih_pcie_enumeration_event()
  scsi: aacraid: use timespec64 instead of timeval
  scsi: scsi_transport_fc: add 64GBIT and 128GBIT port speed definitions
  scsi: qla2xxx: Suppress a kernel complaint in qla_init_base_qpair()
  scsi: mpt3sas: fix dma_addr_t casts
  scsi: be2iscsi: Use kasprintf
  scsi: storvsc: Avoid excessive host scan on controller change
  scsi: lpfc: fix kzalloc-simple.cocci warnings
  scsi: mpt3sas: Update mpt3sas driver version.
  scsi: mpt3sas: Fix sparse warnings
  scsi: mpt3sas: Fix nvme drives checking for tlr.
  scsi: mpt3sas: NVMe drive support for BTDHMAPPING ioctl command and log info
  scsi: mpt3sas: Add-Task-management-debug-info-for-NVMe-drives.
  scsi: mpt3sas: scan and add nvme device after controller reset
  scsi: mpt3sas: Set NVMe device queue depth as 128
  scsi: mpt3sas: Handle NVMe PCIe device related events generated from firmware.
  scsi: mpt3sas: API's to remove nvme drive from sml
  scsi: mpt3sas: API 's to support NVMe drive addition to SML
  ...
2017-11-14 16:23:44 -08:00
Linus Torvalds
e2c5923c34 Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block
Pull core block layer updates from Jens Axboe:
 "This is the main pull request for block storage for 4.15-rc1.

  Nothing out of the ordinary in here, and no API changes or anything
  like that. Just various new features for drivers, core changes, etc.
  In particular, this pull request contains:

   - A patch series from Bart, closing the whole on blk/scsi-mq queue
     quescing.

   - A series from Christoph, building towards hidden gendisks (for
     multipath) and ability to move bio chains around.

   - NVMe
        - Support for native multipath for NVMe (Christoph).
        - Userspace notifications for AENs (Keith).
        - Command side-effects support (Keith).
        - SGL support (Chaitanya Kulkarni)
        - FC fixes and improvements (James Smart)
        - Lots of fixes and tweaks (Various)

   - bcache
        - New maintainer (Michael Lyle)
        - Writeback control improvements (Michael)
        - Various fixes (Coly, Elena, Eric, Liang, et al)

   - lightnvm updates, mostly centered around the pblk interface
     (Javier, Hans, and Rakesh).

   - Removal of unused bio/bvec kmap atomic interfaces (me, Christoph)

   - Writeback series that fix the much discussed hundreds of millions
     of sync-all units. This goes all the way, as discussed previously
     (me).

   - Fix for missing wakeup on writeback timer adjustments (Yafang
     Shao).

   - Fix laptop mode on blk-mq (me).

   - {mq,name} tupple lookup for IO schedulers, allowing us to have
     alias names. This means you can use 'deadline' on both !mq and on
     mq (where it's called mq-deadline). (me).

   - blktrace race fix, oopsing on sg load (me).

   - blk-mq optimizations (me).

   - Obscure waitqueue race fix for kyber (Omar).

   - NBD fixes (Josef).

   - Disable writeback throttling by default on bfq, like we do on cfq
     (Luca Miccio).

   - Series from Ming that enable us to treat flush requests on blk-mq
     like any other request. This is a really nice cleanup.

   - Series from Ming that improves merging on blk-mq with schedulers,
     getting us closer to flipping the switch on scsi-mq again.

   - BFQ updates (Paolo).

   - blk-mq atomic flags memory ordering fixes (Peter Z).

   - Loop cgroup support (Shaohua).

   - Lots of minor fixes from lots of different folks, both for core and
     driver code"

* 'for-4.15/block' of git://git.kernel.dk/linux-block: (294 commits)
  nvme: fix visibility of "uuid" ns attribute
  blk-mq: fixup some comment typos and lengths
  ide: ide-atapi: fix compile error with defining macro DEBUG
  blk-mq: improve tag waiting setup for non-shared tags
  brd: remove unused brd_mutex
  blk-mq: only run the hardware queue if IO is pending
  block: avoid null pointer dereference on null disk
  fs: guard_bio_eod() needs to consider partitions
  xtensa/simdisk: fix compile error
  nvme: expose subsys attribute to sysfs
  nvme: create 'slaves' and 'holders' entries for hidden controllers
  block: create 'slaves' and 'holders' entries for hidden gendisks
  nvme: also expose the namespace identification sysfs files for mpath nodes
  nvme: implement multipath access to nvme subsystems
  nvme: track shared namespaces
  nvme: introduce a nvme_ns_ids structure
  nvme: track subsystems
  block, nvme: Introduce blk_mq_req_flags_t
  block, scsi: Make SCSI quiesce and resume work reliably
  block: Add the QUEUE_FLAG_PREEMPT_ONLY request queue flag
  ...
2017-11-14 15:32:19 -08:00
Linus Torvalds
abc36be236 A couple of configfs cleanups:
- proper use of the bool type (Thomas Meyer)
   - constification of struct config_item_type (Bhumika Goyal)
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Merge tag 'configfs-for-4.15' of git://git.infradead.org/users/hch/configfs

Pull configfs updates from Christoph Hellwig:
 "A couple of configfs cleanups:

   - proper use of the bool type (Thomas Meyer)

   - constification of struct config_item_type (Bhumika Goyal)"

* tag 'configfs-for-4.15' of git://git.infradead.org/users/hch/configfs:
  RDMA/cma: make config_item_type const
  stm class: make config_item_type const
  ACPI: configfs: make config_item_type const
  nvmet: make config_item_type const
  usb: gadget: configfs: make config_item_type const
  PCI: endpoint: make config_item_type const
  iio: make function argument and some structures const
  usb: gadget: make config_item_type structures const
  dlm: make config_item_type const
  netconsole: make config_item_type const
  nullb: make config_item_type const
  ocfs2/cluster: make config_item_type const
  target: make config_item_type const
  configfs: make ci_type field, some pointers and function arguments const
  configfs: make config_item_type const
  configfs: Fix bool initialization/comparison
2017-11-14 14:44:04 -08:00
Linus Torvalds
f14fc0ccee Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull quota, ext2, isofs and udf fixes from Jan Kara:

 - two small quota error handling fixes

 - two isofs fixes for architectures with signed char

 - several udf block number overflow and signedness fixes

 - ext2 rework of mount option handling to avoid GFP_KERNEL allocation
   with spinlock held

 - ... it also contains a patch to implement auditing of responses to
   fanotify permission events. That should have been in the fanotify
   pull request but I mistakenly merged that patch into a wrong branch
   and noticed only now at which point I don't think it's worth rebasing
   and redoing.

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  quota: be aware of error from dquot_initialize
  quota: fix potential infinite loop
  isofs: use unsigned char types consistently
  isofs: fix timestamps beyond 2027
  udf: Fix some sign-conversion warnings
  udf: Fix signed/unsigned format specifiers
  udf: Fix 64-bit sign extension issues affecting blocks > 0x7FFFFFFF
  udf: Remove some outdate references from documentation
  udf: Avoid overflow when session starts at large offset
  ext2: Fix possible sleep in atomic during mount option parsing
  ext2: Parse mount options into a dedicated structure
  audit: Record fanotify access control decisions
2017-11-14 14:13:11 -08:00
Linus Torvalds
23281c8034 Merge branch 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:

 - fixes of use-after-tree issues when handling fanotify permission
   events from Miklos

 - refcount_t conversions from Elena

 - fixes of ENOMEM handling in dnotify and fsnotify from me

* 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fsnotify: convert fsnotify_mark.refcnt from atomic_t to refcount_t
  fanotify: clean up CONFIG_FANOTIFY_ACCESS_PERMISSIONS ifdefs
  fsnotify: clean up fsnotify()
  fanotify: fix fsnotify_prepare_user_wait() failure
  fsnotify: fix pinning group in fsnotify_prepare_user_wait()
  fsnotify: pin both inode and vfsmount mark
  fsnotify: clean up fsnotify_prepare/finish_user_wait()
  fsnotify: convert fsnotify_group.refcnt from atomic_t to refcount_t
  fsnotify: Protect bail out path of fsnotify_add_mark_locked() properly
  dnotify: Handle errors from fsnotify_add_mark_locked() in fcntl_dirnotify()
2017-11-14 14:08:20 -08:00
Michael S. Tsirkin
c7cdff0e86 virtio_balloon: fix deadlock on OOM
fill_balloon doing memory allocations under balloon_lock
can cause a deadlock when leak_balloon is called from
virtballoon_oom_notify and tries to take same lock.

To fix, split page allocation and enqueue and do allocations outside the lock.

Here's a detailed analysis of the deadlock by Tetsuo Handa:

In leak_balloon(), mutex_lock(&vb->balloon_lock) is called in order to
serialize against fill_balloon(). But in fill_balloon(),
alloc_page(GFP_HIGHUSER[_MOVABLE] | __GFP_NOMEMALLOC | __GFP_NORETRY) is
called with vb->balloon_lock mutex held. Since GFP_HIGHUSER[_MOVABLE]
implies __GFP_DIRECT_RECLAIM | __GFP_IO | __GFP_FS, despite __GFP_NORETRY
is specified, this allocation attempt might indirectly depend on somebody
else's __GFP_DIRECT_RECLAIM memory allocation. And such indirect
__GFP_DIRECT_RECLAIM memory allocation might call leak_balloon() via
virtballoon_oom_notify() via blocking_notifier_call_chain() callback via
out_of_memory() when it reached __alloc_pages_may_oom() and held oom_lock
mutex. Since vb->balloon_lock mutex is already held by fill_balloon(), it
will cause OOM lockup.

  Thread1                                       Thread2
    fill_balloon()
      takes a balloon_lock
      balloon_page_enqueue()
        alloc_page(GFP_HIGHUSER_MOVABLE)
          direct reclaim (__GFP_FS context)       takes a fs lock
            waits for that fs lock                  alloc_page(GFP_NOFS)
                                                      __alloc_pages_may_oom()
                                                        takes the oom_lock
                                                        out_of_memory()
                                                          blocking_notifier_call_chain()
                                                            leak_balloon()
                                                              tries to take that balloon_lock and deadlocks

Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Wei Wang <wei.w.wang@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-11-14 23:57:38 +02:00
Linus Torvalds
29309a4eb8 We've got a total of 17 GFS2 patches for this merge window. The
patches are basically in three categories: (1) patches related to
 broken xfstest cases, (2) patches related to improving iomap and
 start using it in GFS2, and (3) general typos and clarifications.
 
 Please note that one of the iomap patches extends beyond GFS2 and
 affects other file systems, but it was publically reviewed by a
 variety of file system people in the community.
 
 1. Andreas has a patch that simply renames variable 'bsize' to 'factor'
    to clarify the logic related to gfs2_block_map.
 2. He also has a patch to correctly set ctime in the setflags ioctl,
    which fixes broken xfstests test 277.
 3. He also fixed broken xfstest 258, due to an atime initialization
    problem.
 4. He also fixed broken xfstest 307, in which GFS2 was not setting
    ctime when setting acls.
 5. He has a patch to switch general iomap code from blkno to disk
    offset for a variety of file systems.
 6. He has a patch to add a new IOMAP_F_DATA_INLINE flag for iomap
    to indicate blocks that have data mixed with metadata.
 7. I contributed a patch to make inode height info part of the
    'metapath' data structure to facilitate using iomap in GFS2.
 8. I have a patch to start using iomap inside GFS2 and switch GFS2's
    block_map functions to use iomap under the covers.
 9. I have a patch to switch GFS2's fiemap implementation from using
    block_map to using iomap under the covers.
 10. Andreas has a patch to implement SEEK_HOLE and SEEK_DATA via
     iomap in GFS2.
 11. I have a patch related to journaled data pages not being properly
     synced to media when writing inodes. This was caught with xfstests.
 12. I have a patch to fix another failing xfstest case in which
     switching a file from ordered_write to journaled data via set_flags
     caused a deadlock.
 13. Andreas has a patch to fix failing xfstest case 066, which was
     due to not properly syncing dirty inodes when changing extended
     attributes.
 14. Andreas fixed a minor typo in a comment.
 15. Andreas contributed a patch to partially fix xfstest 424, which
     involved GET_FLAGS and SET_FLAGS ioctl. This is also a cleanup
     and simplification of the translation of flags from fs flags to
     gfs2 flags.
 16. He also added support for STATX_ATTR_ in statx, which fixed broken
     xfstest 424.
 17. He also contributed a fix for failing xfstest 093 which fixes a
     recursive glock problem with gfs2_xattr_get and _set.
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Merge tag 'gfs2-4.15.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 updates from Bob Peterson:
 "We've got a total of 17 GFS2 patches for this merge window. The
  patches are basically in three categories: (1) patches related to
  broken xfstest cases, (2) patches related to improving iomap and start
  using it in GFS2, and (3) general typos and clarifications.

  Please note that one of the iomap patches extends beyond GFS2 and
  affects other file systems, but it was publically reviewed by a
  variety of file system people in the community.

  From Andreas Gruenbacher:

   - rename variable 'bsize' to 'factor' to clarify the logic related to
     gfs2_block_map.

   - correctly set ctime in the setflags ioctl, which fixes broken
     xfstests test 277.

   - fix broken xfstest 258, due to an atime initialization problem.

   - fix broken xfstest 307, in which GFS2 was not setting ctime when
     setting acls.

   - switch general iomap code from blkno to disk offset for a variety
     of file systems.

   - add a new IOMAP_F_DATA_INLINE flag for iomap to indicate blocks
     that have data mixed with metadata.

   - implement SEEK_HOLE and SEEK_DATA via iomap in GFS2.

   - fix failing xfstest case 066, which was due to not properly syncing
     dirty inodes when changing extended attributes.

   - fix a minor typo in a comment.

   - partially fix xfstest 424, which involved GET_FLAGS and SET_FLAGS
     ioctl. This is also a cleanup and simplification of the translation
     of flags from fs flags to gfs2 flags.

   - add support for STATX_ATTR_ in statx, which fixed broken xfstest
     424.

   - fix for failing xfstest 093 which fixes a recursive glock problem
     with gfs2_xattr_get and _set

  From me:

   - make inode height info part of the 'metapath' data structure to
     facilitate using iomap in GFS2.

   - start using iomap inside GFS2 and switch GFS2's block_map functions
     to use iomap under the covers.

   - switch GFS2's fiemap implementation from using block_map to using
     iomap under the covers.

   - fix journaled data pages not being properly synced to media when
     writing inodes. This was caught with xfstests.

   - fix another failing xfstest case in which switching a file from
     ordered_write to journaled data via set_flags caused a deadlock"

* tag 'gfs2-4.15.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Allow gfs2_xattr_set to be called with the glock held
  gfs2: Add support for statx inode flags
  gfs2: Fix and clean up {GET,SET}FLAGS ioctl
  gfs2: Fix a harmless typo
  gfs2: Fix xattr fsync
  GFS2: Take inode off order_write list when setting jdata flag
  GFS2: flush the log and all pages for jdata as we do for WB_SYNC_ALL
  gfs2: Implement SEEK_HOLE / SEEK_DATA via iomap
  GFS2: Switch fiemap implementation to use iomap
  GFS2: Implement iomap for block_map
  GFS2: Make height info part of metapath
  gfs2: Always update inode ctime in set_acl
  gfs2: Support negative atimes
  gfs2: Update ctime in setflags ioctl
  gfs2: Clarify gfs2_block_map
2017-11-14 13:55:51 -08:00
Linus Torvalds
5cea7647e6 Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
 "There are some new user features and the usual load of invisible
  enhancements or cleanups.

  New features:

   - extend mount options to specify zlib compression level, -o
     compress=zlib:9

   - v2 of ioctl "extent to inode mapping", addressing a usecase where
     we want to retrieve more but inaccurate results and do the
     postprocessing in userspace, aiding defragmentation or
     deduplication tools

   - populate compression heuristics logic, do data sampling and try to
     guess compressibility by: looking for repeated patterns, counting
     unique byte values and distribution, calculating Shannon entropy;
     this will need more benchmarking and possibly fine tuning, but the
     base should be good enough

   - enable indexing for btrfs as lower filesystem in overlayfs

   - speedup page cache readahead during send on large files

  Internal enhancements:

   - more sanity checks of b-tree items when reading them from disk

   - more EINVAL/EUCLEAN fixups, missing BLK_STS_* conversion, other
     errno or error handling fixes

   - remove some homegrown IO-related logic, that's been obsoleted by
     core block layer changes (batching, plug/unplug, own counters)

   - add ref-verify, optional debugging feature to verify extent
     reference accounting

   - simplify code handling outstanding extents, make it more clear
     where and how the accounting is done

   - make delalloc reservations per-inode, simplify the code and make
     the logic more straightforward

   - extensive cleanup of delayed refs code

  Notable fixes:

   - fix send ioctl on 32bit with 64bit kernel"

* 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (102 commits)
  btrfs: Fix bug for misused dev_t when lookup in dev state hash table.
  Btrfs: heuristic: add Shannon entropy calculation
  Btrfs: heuristic: add byte core set calculation
  Btrfs: heuristic: add byte set calculation
  Btrfs: heuristic: add detection of repeated data patterns
  Btrfs: heuristic: implement sampling logic
  Btrfs: heuristic: add bucket and sample counters and other defines
  Btrfs: compression: separate heuristic/compression workspaces
  btrfs: move btrfs_truncate_block out of trans handle
  btrfs: don't call btrfs_start_delalloc_roots in flushoncommit
  btrfs: track refs in a rb_tree instead of a list
  btrfs: add a comp_refs() helper
  btrfs: switch args for comp_*_refs
  btrfs: make the delalloc block rsv per inode
  btrfs: add tracepoints for outstanding extents mods
  Btrfs: rework outstanding_extents
  btrfs: increase output size for LOGICAL_INO_V2 ioctl
  btrfs: add a flags argument to LOGICAL_INO and call it LOGICAL_INO_V2
  btrfs: add a flag to iterate_inodes_from_logical to find all extent refs for uncompressed extents
  btrfs: send: remove unused code
  ...
2017-11-14 13:35:29 -08:00
Linus Torvalds
ae9a8c4bdc Add support for online resizing of file systems with bigalloc. Fix a
two data corruption bugs involving DAX, as well as a corruption bug
 after a crash during a racing fallocate and delayed allocation.
 Finally, a number of cleanups and optimizations.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:

 - Add support for online resizing of file systems with bigalloc

 - Fix a two data corruption bugs involving DAX, as well as a corruption
   bug after a crash during a racing fallocate and delayed allocation.

 - Finally, a number of cleanups and optimizations.

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: improve smp scalability for inode generation
  ext4: add support for online resizing with bigalloc
  ext4: mention noload when recovering on read-only device
  Documentation: fix little inconsistencies
  ext4: convert timers to use timer_setup()
  jbd2: convert timers to use timer_setup()
  ext4: remove duplicate extended attributes defs
  ext4: add ext4_should_use_dax()
  ext4: add sanity check for encryption + DAX
  ext4: prevent data corruption with journaling + DAX
  ext4: prevent data corruption with inline data + DAX
  ext4: fix interaction between i_size, fallocate, and delalloc after a crash
  ext4: retry allocations conservatively
  ext4: Switch to iomap for SEEK_HOLE / SEEK_DATA
  ext4: Add iomap support for inline data
  iomap: Add IOMAP_F_DATA_INLINE flag
  iomap: Switch from blkno to disk offset
2017-11-14 12:59:42 -08:00
Linus Torvalds
32190f0afb fscrypt: lots of cleanups, mostly courtesy by Eric Biggers
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt

Pull fscrypt updates from Ted Ts'o:
 "Lots of cleanups, mostly courtesy by Eric Biggers"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt:
  fscrypt: lock mutex before checking for bounce page pool
  fscrypt: add a documentation file for filesystem-level encryption
  ext4: switch to fscrypt_prepare_setattr()
  ext4: switch to fscrypt_prepare_lookup()
  ext4: switch to fscrypt_prepare_rename()
  ext4: switch to fscrypt_prepare_link()
  ext4: switch to fscrypt_file_open()
  fscrypt: new helper function - fscrypt_prepare_setattr()
  fscrypt: new helper function - fscrypt_prepare_lookup()
  fscrypt: new helper function - fscrypt_prepare_rename()
  fscrypt: new helper function - fscrypt_prepare_link()
  fscrypt: new helper function - fscrypt_file_open()
  fscrypt: new helper function - fscrypt_require_key()
  fscrypt: remove unneeded empty fscrypt_operations structs
  fscrypt: remove ->is_encrypted()
  fscrypt: switch from ->is_encrypted() to IS_ENCRYPTED()
  fs, fscrypt: add an S_ENCRYPTED inode flag
  fscrypt: clean up include file mess
2017-11-14 11:35:15 -08:00
Linus Torvalds
37dc79565c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "Here is the crypto update for 4.15:

  API:

   - Disambiguate EBUSY when queueing crypto request by adding ENOSPC.
     This change touches code outside the crypto API.
   - Reset settings when empty string is written to rng_current.

  Algorithms:

   - Add OSCCA SM3 secure hash.

  Drivers:

   - Remove old mv_cesa driver (replaced by marvell/cesa).
   - Enable rfc3686/ecb/cfb/ofb AES in crypto4xx.
   - Add ccm/gcm AES in crypto4xx.
   - Add support for BCM7278 in iproc-rng200.
   - Add hash support on Exynos in s5p-sss.
   - Fix fallback-induced error in vmx.
   - Fix output IV in atmel-aes.
   - Fix empty GCM hash in mediatek.

  Others:

   - Fix DoS potential in lib/mpi.
   - Fix potential out-of-order issues with padata"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (162 commits)
  lib/mpi: call cond_resched() from mpi_powm() loop
  crypto: stm32/hash - Fix return issue on update
  crypto: dh - Remove pointless checks for NULL 'p' and 'g'
  crypto: qat - Clean up error handling in qat_dh_set_secret()
  crypto: dh - Don't permit 'key' or 'g' size longer than 'p'
  crypto: dh - Don't permit 'p' to be 0
  crypto: dh - Fix double free of ctx->p
  hwrng: iproc-rng200 - Add support for BCM7278
  dt-bindings: rng: Document BCM7278 RNG200 compatible
  crypto: chcr - Replace _manual_ swap with swap macro
  crypto: marvell - Add a NULL entry at the end of mv_cesa_plat_id_table[]
  hwrng: virtio - Virtio RNG devices need to be re-registered after suspend/resume
  crypto: atmel - remove empty functions
  crypto: ecdh - remove empty exit()
  MAINTAINERS: update maintainer for qat
  crypto: caam - remove unused param of ctx_map_to_sec4_sg()
  crypto: caam - remove unneeded edesc zeroization
  crypto: atmel-aes - Reset the controller before each use
  crypto: atmel-aes - properly set IV after {en,de}crypt
  hwrng: core - Reset user selected rng by writing "" to rng_current
  ...
2017-11-14 10:52:09 -08:00
Bjorn Helgaas
2b61a44e11 Merge branch 'pci/host-tango' into next
* pci/host-tango:
  PCI: tango: Add MSI controller support
  PCI: Use of_pci_dma_range_parser_init() to reduce duplication
  of/pci: Add of_pci_dma_range_parser_init() for dma-ranges parsing support
2017-11-14 12:11:34 -06:00
Bjorn Helgaas
9ceb09cce1 Merge branch 'pci/virtualization' into next
* pci/virtualization:
  PCI: Document reset method return values
  PCI: Detach driver before procfs & sysfs teardown on device remove
  PCI: Apply Cavium ThunderX ACS quirk to more Root Ports
  PCI: Set Cavium ACS capability quirk flags to assert RR/CR/SV/UF
  PCI: Restore ARI Capable Hierarchy before setting numVFs
  PCI: Create SR-IOV virtfn/physfn links before attaching driver
  PCI: Expose SR-IOV offset, stride, and VF device ID via sysfs
  PCI: Cache the VF device ID in the SR-IOV structure
  PCI: Add Kconfig PCI_IOV dependency for PCI_REALLOC_ENABLE_AUTO
  PCI: Remove unused function __pci_reset_function()
  PCI: Remove reset argument from pci_iov_{add,remove}_virtfn()
2017-11-14 12:11:26 -06:00
Bjorn Helgaas
104d1e40cf Merge branch 'pci/resource' into next
* pci/resource:
  PCI: Fail pci_map_rom() if the option ROM is invalid
  PCI: Move pci_map_rom() error path
  x86/PCI: Enable a 64bit BAR on AMD Family 15h (Models 00-1f, 30-3f, 60-7f)
  PCI: Add pci_resize_resource() for resizing BARs
  PCI: Add resizable BAR infrastructure
  PCI: Add PCI resource type mask #define
2017-11-14 12:11:25 -06:00
Bjorn Helgaas
6018182d31 Merge branch 'pci/msi' into next
* pci/msi:
  PCI/portdrv: Compute MSI/MSI-X IRQ vectors after final allocation
  PCI/portdrv: Factor out Interrupt Message Number lookup
  PCI/portdrv: Consolidate comments
  PCI/portdrv: Add #defines for AER and DPC Interrupt Message Number masks
2017-11-14 12:11:23 -06:00
Bjorn Helgaas
8d666e53e0 Merge branch 'pci/hotplug' into next
* pci/hotplug:
  PCI: pciehp: Do not clear Presence Detect Changed during initialization
  PCI: pciehp: Fix race condition handling surprise link down
  PCI: Distribute available resources to hotplug-capable bridges
  PCI: Distribute available buses to hotplug-capable bridges
  PCI: Do not allocate more buses than available in parent
  PCI: Open-code the two pass loop when scanning bridges
  PCI: Move pci_hp_add_bridge() to drivers/pci/probe.c
  PCI: Add for_each_pci_bridge() helper
  PCI: shpchp: Convert timers to use timer_setup()
  PCI: cpqphp: Convert timers to use timer_setup()
  PCI: pciehp: Convert timers to use timer_setup()
  PCI: ibmphp: Use common error handling code in unconfigure_boot_device()
2017-11-14 12:11:22 -06:00
Stephen Boyd
e8d07fd258 Merge branch 'clk-gpio' into clk-next
* clk-gpio:
  clk: clk-gpio: Request GPIO descriptor as LOW
  clk: clk-gpio: Make GPIO clock provider use descriptors only
2017-11-14 10:07:45 -08:00
Stephen Boyd
4c4fe16971 Merge branch 'clk-mediatek' into clk-next
* clk-mediatek:
  clk: mediatek: add clock support for MT7622 SoC
  clk: mediatek: add clocks dt-bindings required header for MT7622 SoC
  clk: mediatek: add the option for determining PLL source clock
  dt-bindings: clock: mediatek: document clk bindings for MediaTek MT7622 SoC
  clk: mediatek: mark mtk_infrasys_init_early __init
  clk: mediatek: Add MT2712 clock support
  clk: mediatek: Add dt-bindings for MT2712 clocks
  dt-bindings: ARM: Mediatek: Document bindings for MT2712
2017-11-14 10:07:44 -08:00
Stephen Boyd
eed58151d6 Merge branch 'clk-imx' into clk-next
* clk-imx:
  clk: imx: imx7d: Remove ARM_M0 clock
  clk: imx: imx7d: Fix parent clock for OCRAM_CLK
  clk: imx: clk-imx6ul: allow lcdif_pre_sel to change parent rate
  clk: imx6: refine hdmi_isfr's parent to make HDMI work on i.MX6 SoCs w/o VPU
2017-11-14 10:07:43 -08:00
Stephen Boyd
8f62040086 Merge branch 'clk-qcom' into clk-next
* clk-qcom:
  clk: qcom: clk-smd-rpm: add msm8996 rpmclks
  clk: qcom: Implement RPM clocks for MSM8660/APQ8060
  clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC
  clk: qcom: Elaborate on "active" clocks in the RPM clock bindings
  clk: qcom: Remove unused RCG ops
2017-11-14 10:07:42 -08:00
Stephen Boyd
7a103f0225 Merge branch 'clk-at91' into clk-next
* clk-at91:
  clk: at91: utmi: set the mainck rate
2017-11-14 10:07:40 -08:00
Stephen Boyd
2dd850ef6e Merge branch 'clk-devm-provider' into clk-next
* clk-devm-provider:
  clk: qcom: common: Migrate to devm_* APIs for resets and clk providers
  clk: Add devm_of_clk_add_hw_provider()/del_provider() APIs
2017-11-14 10:07:39 -08:00
Stephen Boyd
042e2e9c2c clk: tegra: Changes for v4.15-rc1
This contains cleanups and minor fixes for the Tegra clock driver.
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Merge tag 'tegra-for-4.15-clk-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-next

Pull tegra clk drivers updates from Thierry Reding:

This contains cleanups and minor fixes for the Tegra clock driver.

* tag 'tegra-for-4.15-clk-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  clk: tegra: Use readl_relaxed_poll_timeout_atomic() in tegra210_clock_init()
  clk: tegra: dfll: Fix drvdata overwriting issue
  clk: tegra: Fix cclk_lp divisor register
  clk: tegra: Bump SCLK clock rate to 216 MHz
  clk: tegra: Use common definition of APBDMA clock gate
  clk: tegra: Correct parent of the APBDMA clock
  clk: tegra: Add AHB DMA clock entry
  clk: tegra: Mark APB clock as critical
  clk: tegra: Make tegra_clk_pll_params __ro_after_init
  clk: tegra: Fix sor1_out clock implementation
  clk: tegra: Use tegra_clk_register_periph_data()
  clk: tegra: Add peripheral clock registration helper
  clk: tegra: Check BPMP response return code
  dt-bindings: clock: tegra: Add sor1_out clock
  firmware: tegra: Propagate error code to caller
2017-11-14 10:07:15 -08:00
Mauro Carvalho Chehab
f2ecc3d078 Merge tag 'staging-4.15-rc1' into v4l_for_linus
There are some conflicts between staging and media trees,
as reported by Stephen Rothwell <sfr@canb.auug.org.au>.

So, merge from staging.

* tag 'staging-4.15-rc1': (775 commits)
  staging: lustre: add SPDX identifiers to all lustre files
  staging: greybus: Remove redundant license text
  staging: greybus: add SPDX identifiers to all greybus driver files
  staging: ccree: simplify ioread/iowrite
  staging: ccree: simplify registers access
  staging: ccree: simplify error handling logic
  staging: ccree: remove dead code
  staging: ccree: handle limiting of DMA masks
  staging: ccree: copy IV to DMAable memory
  staging: fbtft: remove redundant initialization of buf
  staging: sm750fb: Fix parameter mistake in poke32
  staging: wilc1000: Fix bssid buffer offset in Txq
  staging: fbtft: fb_ssd1331: fix mirrored display
  staging: android: Fix checkpatch.pl error
  staging: greybus: loopback: convert loopback to use generic async operations
  staging: greybus: operation: add private data with get/set accessors
  staging: greybus: loopback: Fix iteration count on async path
  staging: greybus: loopback: Hold per-connection mutex across operations
  staging: greybus/loopback: use ktime_get() for time intervals
  staging: fsl-dpaa2/eth: Extra headroom in RX buffers
  ...

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-11-14 10:47:01 -05:00
Bjorn Helgaas
a48f3d5b19 PCI/ASPM: Add L1 Substates definitions
Add and use #defines for L1 Substate register fields instead of hard-coding
the masks.  Also update comments to use names from the spec.  No functional
change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Vidya Sagar <vidyas@nvidia.com>
2017-11-14 08:32:47 -06:00
Bjorn Helgaas
7f88ba4a19 PCI/ASPM: Reformat ASPM register definitions
Reformat register field definitions in the style used elsewhere and align
comments with names used in the spec.  No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Vidya Sagar <vidyas@nvidia.com>
2017-11-14 08:32:42 -06:00
Johannes Berg
096d1dd0f0 netlink: remove unused NETLINK SKB flags
These flags are unused, remove them to be less confusing.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-14 21:51:14 +09:00
Thomas Gleixner
41cc30412d irqchip updates for 4.15, take #4
- A core irq fix for legacy cases where the irq trigger is not reported
   by firmware
 - A couple of GICv3/4 fixes (Kconfig, of-node refcount, error handling)
 - Trivial pr_err fixes
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Merge tag 'irqchip-4.15-4' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip updates for 4.15, take #4 from Marc Zyngier

 - A core irq fix for legacy cases where the irq trigger is not reported
   by firmware

 - A couple of GICv3/4 fixes (Kconfig, of-node refcount, error handling)

 - Trivial pr_err fixes
2017-11-14 11:23:05 +01:00
Miroslav Lichvar
aea3706cfc timekeeping: Remove CONFIG_GENERIC_TIME_VSYSCALL_OLD
As of d4d1fc61eb (ia64: Update fsyscall gettime to use modern
vsyscall_update)the last user of CONFIG_GENERIC_TIME_VSYSCALL_OLD
have been updated, the legacy support for old-style vsyscall
implementations can be removed from the timekeeping code.

(Thanks again to Tony Luck for helping remove the last user!)

[jstultz: Commit message rework]

Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Link: https://lkml.kernel.org/r/1510613491-16695-1-git-send-email-john.stultz@linaro.org
2017-11-14 11:20:25 +01:00
Thomas Gleixner
d4bfeabe9f Merge branch 'linus' into timers/urgent
Get upstream changes so dependent patches can be applied.
2017-11-14 10:01:49 +01:00
Ilya Lesokhin
213ef6e7c9 tls: Move tls_make_aad to header to allow sharing
move tls_make_aad as it is going to be reused
by the device offload code and rx path.
Remove unused recv parameter.

Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-14 16:26:34 +09:00
Ilya Lesokhin
ff45d820a2 tls: Fix TLS ulp context leak, when TLS_TX setsockopt is not used.
Previously the TLS ulp context would leak if we attached a TLS ulp
to a socket but did not use the TLS_TX setsockopt,
or did use it but it failed.
This patch solves the issue by overriding prot[TLS_BASE_TX].close
and fixing tls_sk_proto_close to work properly
when its called with ctx->tx_conf == TLS_BASE_TX.
This patch also removes ctx->free_resources as we can use ctx->tx_conf
to obtain the relevant information.

Fixes: 3c4d755915 ('tls: kernel TLS support')
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-14 16:26:34 +09:00
Ilya Lesokhin
6d88207fcf tls: Add function to update the TLS socket configuration
The tx configuration is now stored in ctx->tx_conf.
And sk->sk_prot is updated trough a function
This will simplify things when we add rx
and support for different possible
tx and rx cross configurations.

Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-14 16:26:34 +09:00
Eric Dumazet
3a9b76fd0d tcp: allow drivers to tweak TSQ logic
I had many reports that TSQ logic breaks wifi aggregation.

Current logic is to allow up to 1 ms of bytes to be queued into qdisc
and drivers queues.

But Wifi aggregation needs a bigger budget to allow bigger rates to
be discovered by various TCP Congestion Controls algorithms.

This patch adds an extra socket field, allowing wifi drivers to select
another log scale to derive TCP Small Queue credit from current pacing
rate.

Initial value is 10, meaning that this patch does not change current
behavior.

We expect wifi drivers to set this field to smaller values (tests have
been done with values from 6 to 9)

They would have to use following template :

if (skb->sk && skb->sk->sk_pacing_shift != MY_PACING_SHIFT)
     skb->sk->sk_pacing_shift = MY_PACING_SHIFT;

Ref: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1670041
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Toke Høiland-Jørgensen <toke@toke.dk>
Cc: Kir Kolyshkin <kir@openvz.org>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-14 16:18:36 +09:00