Pull LED updates from Jacek Anaszewski:
"New drivers:
- add LED support for MT6323 PMIC
- add LED support for Motorola CPCAP PMIC
New features and improvements:
- add LED trigger for all CPUs aggregated which is useful on tiny
boards with more CPU cores than LED pins
- add OF variants of LED registering functions as a preparation for
adding generic support for Device Tree parsing
- dell-led improvements and cleanups, followed by moving it to the
x86 platform driver subsystem which is a more appropriate place for
it
- extend pca9532 Device Tree support by adding the LEDs
'default-state' property
- extend pca963x Device Tree support by adding nxp,inverted-out
property for inverting the polarity of the output
- remove ACPI support for lp3952 since it relied on a non-official
ACPI IDs"
* tag 'leds_for_4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
leds: pca9532: Extend pca9532 device tree support
leds: cpcap: new driver
mfd: cpcap: Add missing include dependencies
leds: lp3952: Use 'if (ret)' pattern
leds: lp3952: Remove ACPI support for lp3952
leds: mt6323: Fix an off by one bug in probe
dt-bindings: leds: Add document bindings for leds-mt6323
leds: Add LED support for MT6323 PMIC
leds: gpio: use OF variant of LED registering function
leds: core: add OF variants of LED registering functions
platform/x86: dell-wmi-led: fix coding style issues
dell-led: move driver to drivers/platform/x86/dell-wmi-led.c
dell-led: remove code related to mic mute LED
platform/x86: dell-laptop: import dell_micmute_led_set() from drivers/leds/dell-led.c
ALSA: hda - rename dell_led_set_func to dell_micmute_led_set_func
ALSA: hda - use dell_micmute_led_set() instead of dell_app_wmi_led_set()
dell-led: remove GUID check from dell_micmute_led_set()
leds/trigger/cpu: Add LED trigger for all CPUs aggregated
Pull mailbox updates from Jassi Brar:
- new driver for Broadcom FlexRM controller
- constify data structures of callback functions in some drivers
- a few bug fixes uncovered by multi-threaded use of mailbox channels
in blocking mode
* 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: handle empty message in tx_tick
mailbox: skip complete wait event if timer expired
mailbox: always wait in mbox_send_message for blocking Tx mode
mailbox: Remove depends on COMPILE_TEST for BCM_FLEXRM_MBOX
mailbox: check ->last_tx_done for NULL in case of timer-based polling
dt-bindings: Add DT bindings info for FlexRM ring manager
mailbox: Add driver for Broadcom FlexRM ring manager
dt-bindings: mailbox: Update doc with NSP PDC/mailbox support
mailbox: bcm-pdc: Add Northstar Plus support to PDC driver
mailbox: constify mbox_chan_ops structures
Pull IPMI updates from Corey Minyard:
"A few fixes of things in the IPMI area, the watchdog would have issues
at panic time cause by a recently introduced change, a problem with
device numbering, one possible panic in the I2C driver (destined for
stable).
Nothing earth-shattering, but some things that need to go in"
* tag 'for-linux-4.12' of git://github.com/cminyard/linux-ipmi:
ipmi/watchdog: fix wdog hang on panic waiting for ipmi response
ipmi_si: use smi_num for init_name
ipmi: bt-bmc: Add ast2500 compatible string
ACPI / IPMI: change warning to debug on timeout
ACPI / IPMI: allow ACPI_IPMI with IPMI_SSIF
ipmi_ssif: use setup_timer
ipmi: Fix kernel panic at ipmi_ssif_thread()
Pull HSI fix from Sebastian Reichel:
"Fix double free fix in ssi-protocol"
* tag 'hsi-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
HSI: ssi_protocol: double free in ssip_pn_xmit()
Pull hwmon updates from Guenter Roeck:
- removed twl4030-madc driver
- added ASPEED PWM/fan driver
- various minor improvements and fixes in several drivers
* tag 'hwmon-for-linus-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (36 commits)
hwmon: (twl4030-madc) drop driver
hwmon: (tmp103) Use SIMPLE_DEV_PM_OPS helper macro
hwmon: (adt7475) set start bit in probe
hwmon: (ina209) Handled signed registers
hwmon: (lm87) Add OF device ID table
hwmon: (lm87) Remove unused I2C devices driver_data
drivers: hwmon: Support for ASPEED PWM/Fan tach
Documentation: dt-bindings: Document bindings for ASPEED AST2400/AST2500 PWM and Fan tach controller device driver
hwmon: (lm87) Allow channel data to be set from dts file
Documentation: dtb: lm87: Add hwmon binding documentation
hwmon: (ads7828) Accept optional parameters from device tree
hwmon: (dell-smm) Add Dell XPS 15 9560 into DMI list
hwmon: Constify str parameter of hwmon_ops->read_string
dt: Add vendor prefix for Sensirion
hwmon: (tmp421) Add OF device ID table
hwmon: (tmp103) Add OF device ID table
hwmon: (tmp102) Add OF device ID table
hwmon: (stts751) Add OF device ID table
hwmon: (ucd9200) Add OF device ID table
hwmon: (ucd9000) Add OF device ID table
...
Pull EDAC updates from Borislav Petkov:
- an EDAC driver for Cavium ThunderX RAS IP (Sergey Temerkhanov)
- removal of DRAM error reporting through PCI SERR NMI (Borislav
Petkov)
- misc small fixes (Jan Glauber, Thor Thayer)
* tag 'edac_for_4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, ghes: Do not enable it by default
EDAC: Rename report status accessors
EDAC: Delete edac_stub.c
EDAC: Update Kconfig help text
EDAC: Remove EDAC_MM_EDAC
EDAC: Issue tracepoint only when it is defined
ACPI/extlog: Add EDAC dependency
EDAC: Move edac_op_state to edac_mc.c
EDAC: Remove edac_err_assert
EDAC: Get rid of edac_handlers
x86/nmi, EDAC: Get rid of DRAM error reporting thru PCI SERR NMI
EDAC, highbank: Align Makefile directives
EDAC, thunderx: Remove unused code
EDAC, thunderx: Change LMC index calculation
EDAC, altera: Fix peripheral warnings for Cyclone5
EDAC, thunderx: Fix L2C MCI interrupt disable
EDAC, thunderx: Add Cavium ThunderX EDAC driver
Pull second round of block layer updates from Jens Axboe:
- Further fixups to the NVMe APST code, from Andy.
- Various fixes for (mostly) nvme-fc, from Christoph and James.
- NVMe scsi fixes from Jon and Christoph.
* 'for-4.12/post-merge' of git://git.kernel.dk/linux-block: (39 commits)
nvme-scsi: remove nvme_trans_security_protocol
nvme-lightnvm: add missing endianess conversion in nvme_nvm_end_io
nvme-scsi: Consider LBA format in IO splitting calculation
nvme-fc: avoid memory corruption caused by calling nvmf_free_options() twice
lpfc: Fix memory corruption of the lpfc_ncmd->list pointers
nvme: Add nvme_core.force_apst to ignore the NO_APST quirk
nvme: Display raw APST configuration via DYNAMIC_DEBUG
nvme: Fix APST comment
lpfc revison 11.2.0.12
Fix Express lane queue creation.
Update ABORT processing for NVMET.
Fix implicit logo and RSCN handling for NVMET
Add Fabric assigned WWN support.
Fix max_sgl_segments settings for NVME / NVMET
Fix crash after issuing lip reset
Fix driver load issues when MRQ=8
Remove hba lock from NVMET issue WQE.
Fix nvme initiator handling when not enabled.
Fix driver usage of 128B WQEs when WQ_CREATE is V1.
Fix driver unload/reload operation.
...
Pull block layer updates from Jens Axboe:
- Add BFQ IO scheduler under the new blk-mq scheduling framework. BFQ
was initially a fork of CFQ, but subsequently changed to implement
fairness based on B-WF2Q+, a modified variant of WF2Q. BFQ is meant
to be used on desktop type single drives, providing good fairness.
From Paolo.
- Add Kyber IO scheduler. This is a full multiqueue aware scheduler,
using a scalable token based algorithm that throttles IO based on
live completion IO stats, similary to blk-wbt. From Omar.
- A series from Jan, moving users to separately allocated backing
devices. This continues the work of separating backing device life
times, solving various problems with hot removal.
- A series of updates for lightnvm, mostly from Javier. Includes a
'pblk' target that exposes an open channel SSD as a physical block
device.
- A series of fixes and improvements for nbd from Josef.
- A series from Omar, removing queue sharing between devices on mostly
legacy drivers. This helps us clean up other bits, if we know that a
queue only has a single device backing. This has been overdue for
more than a decade.
- Fixes for the blk-stats, and improvements to unify the stats and user
windows. This both improves blk-wbt, and enables other users to
register a need to receive IO stats for a device. From Omar.
- blk-throttle improvements from Shaohua. This provides a scalable
framework for implementing scalable priotization - particularly for
blk-mq, but applicable to any type of block device. The interface is
marked experimental for now.
- Bucketized IO stats for IO polling from Stephen Bates. This improves
efficiency of polled workloads in the presence of mixed block size
IO.
- A few fixes for opal, from Scott.
- A few pulls for NVMe, including a lot of fixes for NVMe-over-fabrics.
From a variety of folks, mostly Sagi and James Smart.
- A series from Bart, improving our exposed info and capabilities from
the blk-mq debugfs support.
- A series from Christoph, cleaning up how handle WRITE_ZEROES.
- A series from Christoph, cleaning up the block layer handling of how
we track errors in a request. On top of being a nice cleanup, it also
shrinks the size of struct request a bit.
- Removal of mg_disk and hd (sorry Linus) by Christoph. The former was
never used by platforms, and the latter has outlived it's usefulness.
- Various little bug fixes and cleanups from a wide variety of folks.
* 'for-4.12/block' of git://git.kernel.dk/linux-block: (329 commits)
block: hide badblocks attribute by default
blk-mq: unify hctx delay_work and run_work
block: add kblock_mod_delayed_work_on()
blk-mq: unify hctx delayed_run_work and run_work
nbd: fix use after free on module unload
MAINTAINERS: bfq: Add Paolo as maintainer for the BFQ I/O scheduler
blk-mq-sched: alloate reserved tags out of normal pool
mtip32xx: use runtime tag to initialize command header
scsi: Implement blk_mq_ops.show_rq()
blk-mq: Add blk_mq_ops.show_rq()
blk-mq: Show operation, cmd_flags and rq_flags names
blk-mq: Make blk_flags_show() callers append a newline character
blk-mq: Move the "state" debugfs attribute one level down
blk-mq: Unregister debugfs attributes earlier
blk-mq: Only unregister hctxs for which registration succeeded
blk-mq-debugfs: Rename functions for registering and unregistering the mq directory
blk-mq: Let blk_mq_debugfs_register() look up the queue name
blk-mq: Register <dev>/queue/mq after having registered <dev>/queue
ide-pm: always pass 0 error to ide_complete_rq in ide_do_devset
ide-pm: always pass 0 error to __blk_end_request_all
..
This driver is no longer needed:
* It has no mainline users
* It has no DT support and OMAP is DT only
* iio-hwmon can be used for madc, which also works with DT
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Pull x86 fixes from Thomas Gleixner:
"The final fixes for 4.11:
- prevent a triple fault with function graph tracing triggered via
suspend to ram
- prevent optimizing for size when function graph tracing is enabled
and the compiler does not support -mfentry
- prevent mwaitx() being called with a zero timeout as mwaitx() might
never return. Observed on the new Ryzen CPUs"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Prevent timer value 0 for MWAITX
x86/build: convert function graph '-Os' error to warning
ftrace/x86: Fix triple fault with graph tracing and suspend-to-ram
Pull scheduler fix from Thomas Gleixner:
"A single fix for a cputime accounting regression which got introduced
in the 4.11 cycle"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/cputime: Fix ksoftirqd cputime accounting regression
Newer hardware has uncovered a bug in the software implementation of
using MWAITX for the delay function. A value of 0 for the timer is meant
to indicate that a timeout will not be used to exit MWAITX. On newer
hardware this can result in MWAITX never returning, resulting in NMI
soft lockup messages being printed. On older hardware, some of the other
conditions under which MWAITX can exit masked this issue. The AMD APM
does not currently document this and will be updated.
Please refer to http://marc.info/?l=kvm&m=148950623231140 for
information regarding NMI soft lockup messages on an AMD Ryzen 1800X.
This has been root-caused as a 0 passed to MWAITX causing it to wait
indefinitely.
This change has the added benefit of avoiding the unnecessary setup of
MONITORX/MWAITX when the delay value is zero.
Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Link: http://lkml.kernel.org/r/1493156643-29366-1-git-send-email-Janakarajan.Natarajan@amd.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Pull clk fix from Stephen Boyd:
"One odd config build fix for a recent Allwinner clock driver change
that got merged. The common code called code in another file that
wasn't always built. This just forces it on so people don't run into
this bad configuration"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: sunxi-ng: always select CCU_GATE
Pull networking fixes from David Miller:
"Just a couple more stragglers, I really hope this is it.
1) Don't let frags slip down into the GRO segmentation handlers, from
Steffen Klassert.
2) Truesize under-estimation triggers warnings in TCP over loopback
with socket filters, 2 part fix from Eric Dumazet.
3) Fix undesirable reset of bonding MTU to ETH_HLEN on slave removal,
from Paolo Abeni.
4) If we flush the XFRM policy after garbage collection, it doesn't
work because stray entries can be created afterwards. Fix from Xin
Long.
5) Hung socket connection fixes in TIPC from Parthasarathy Bhuvaragan.
6) Fix GRO regression with IPSEC when netfilter is disabled, from
Sabrina Dubroca.
7) Fix cpsw driver Kconfig dependency regression, from Arnd Bergmann"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net: hso: register netdev later to avoid a race condition
net: adjust skb->truesize in ___pskb_trim()
tcp: do not underestimate skb->truesize in tcp_trim_head()
bonding: avoid defaulting hard_header_len to ETH_HLEN on slave removal
ipv4: Don't pass IP fragments to upper layer GRO handlers.
cpsw/netcp: refine cpts dependency
tipc: close the connection if protocol messages contain errors
tipc: improve error validations for sockets in CONNECTING state
tipc: Fix missing connection request handling
xfrm: fix GRO for !CONFIG_NETFILTER
xfrm: do the garbage collection after flushing policy
Andrey found a way to trigger the WARN_ON_ONCE(delta < len) in
skb_try_coalesce() using syzkaller and a filter attached to a TCP
socket.
As we did recently in commit 158f323b98 ("net: adjust skb->truesize in
pskb_expand_head()") we can adjust skb->truesize from ___pskb_trim(),
via a call to skb_condense().
If all frags were freed, then skb->truesize can be recomputed.
This call can be done if skb is not yet owned, or destructor is
sock_edemux().
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrey found a way to trigger the WARN_ON_ONCE(delta < len) in
skb_try_coalesce() using syzkaller and a filter attached to a TCP
socket over loopback interface.
I believe one issue with looped skbs is that tcp_trim_head() can end up
producing skb with under estimated truesize.
It hardly matters for normal conditions, since packets sent over
loopback are never truncated.
Bytes trimmed from skb->head should not change skb truesize, since
skb->head is not reallocated.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On slave list updates, the bonding driver computes its hard_header_len
as the maximum of all enslaved devices's hard_header_len.
If the slave list is empty, e.g. on last enslaved device removal,
ETH_HLEN is used.
Since the bonding header_ops are set only when the first enslaved
device is attached, the above can lead to header_ops->create()
being called with the wrong skb headroom in place.
If bond0 is configured on top of ipoib devices, with the
following commands:
ifup bond0
for slave in $BOND_SLAVES_LIST; do
ip link set dev $slave nomaster
done
ping -c 1 <ip on bond0 subnet>
we will obtain a skb_under_panic() with a similar call trace:
skb_push+0x3d/0x40
push_pseudo_header+0x17/0x30 [ib_ipoib]
ipoib_hard_header+0x4e/0x80 [ib_ipoib]
arp_create+0x12f/0x220
arp_send_dst.part.19+0x28/0x50
arp_solicit+0x115/0x290
neigh_probe+0x4d/0x70
__neigh_event_send+0xa7/0x230
neigh_resolve_output+0x12e/0x1c0
ip_finish_output2+0x14b/0x390
ip_finish_output+0x136/0x1e0
ip_output+0x76/0xe0
ip_local_out+0x35/0x40
ip_send_skb+0x19/0x40
ip_push_pending_frames+0x33/0x40
raw_sendmsg+0x7d3/0xb50
inet_sendmsg+0x31/0xb0
sock_sendmsg+0x38/0x50
SYSC_sendto+0x102/0x190
SyS_sendto+0xe/0x10
do_syscall_64+0x67/0x180
entry_SYSCALL64_slow_path+0x25/0x25
This change addresses the issue avoiding updating the bonding device
hard_header_len when the slaves list become empty, forbidding to
shrink it below the value used by header_ops->create().
The bug is there since commit 54ef313714 ("[PATCH] bonding: Handle large
hard_header_len") but the panic can be triggered only since
commit fc791b6335 ("IB/ipoib: move back IB LL address into the hard
header").
Reported-by: Norbert P <noe@physik.uzh.ch>
Fixes: 54ef313714 ("[PATCH] bonding: Handle large hard_header_len")
Fixes: fc791b6335 ("IB/ipoib: move back IB LL address into the hard header")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upper layer GRO handlers can not handle IP fragments, so
exit GRO processing in this case.
This fixes ESP GRO because the packet must be reassembled
before we can decapsulate, otherwise we get authentication
failures.
It also aligns IPv4 to IPv6 where packets with fragmentation
headers are not passed to upper layer GRO handlers.
Fixes: 7785bba299 ("esp: Add a software GRO codepath")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Lindgren reports a kernel oops that resulted from my compile-time
fix on the default config. This shows two problems:
a) configurations that did not already enable PTP_1588_CLOCK will
now miss the cpts driver
b) when cpts support is disabled, the driver crashes. This is a
preexisting problem that we did not notice before my patch.
While the second problem is still being investigated, this modifies
the dependencies again, getting us back to the original state, with
another 'select NET_PTP_CLASSIFY' added in to avoid the original
link error we got, and the 'depends on POSIX_TIMERS' to hide
the CPTS support when turning it on would be useless.
Cc: stable@vger.kernel.org # 4.11 needs this
Fixes: 07fef36234 ("cpsw/netcp: cpts depends on posix_timers")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit c49c097610 ("ipmi: Don't call receive handler in the
panic context") means that the panic_recv_free is not called during a
panic and the atomic count does not drop to 0.
Fix this by only expecting one decrement of the atomic variable
which comes from panic_smi_free.
Signed-off-by: Robert Lippert <rlippert@google.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Steffen Klassert says:
====================
pull request (net): ipsec 2017-04-28
1) Do garbage collecting after a policy flush to remove old
bundles immediately. From Xin Long.
2) Fix GRO if netfilter is not defined.
From Sabrina Dubroca.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull input fix from Dmitry Torokhov:
"Yet another quirk to i8042 to get touchpad recognized on some laptops"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - add Clevo P650RS to the i8042 reset list
When the base driver is enabled but all SoC specific drivers are turned
off, we now get a build error after code was added to always refer to the
clk gates:
drivers/clk/built-in.o: In function `ccu_pll_notifier_cb':
:(.text+0x154f8): undefined reference to `ccu_gate_helper_disable'
:(.text+0x15504): undefined reference to `ccu_gate_helper_enable'
This changes the Kconfig to always require the gate code to be built-in
when CONFIG_SUNXI_CCU is set.
Fixes: 02ae2bc6fe ("clk: sunxi-ng: Add clk notifier to gate then ungate PLL clocks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Pull btrfs fix from Chris Mason:
"We have one more fix for btrfs.
This gets rid of a new WARN_ON from rc1 that ended up making more
noise than we really want. The larger fix for the underflow got
delayed a bit and it's better for now to put it under
CONFIG_BTRFS_DEBUG"
* 'for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: qgroup: move noisy underflow warning to debugging build
Parthasarathy Bhuvaragan says:
====================
tipc: fix hanging socket connections
This patch series contains fixes for the socket layer to
prevent hanging / stale connections.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When a socket is shutting down, we notify the peer node about the
connection termination by reusing an incoming message if possible.
If the last received message was a connection acknowledgment
message, we reverse this message and set the error code to
TIPC_ERR_NO_PORT and send it to peer.
In tipc_sk_proto_rcv(), we never check for message errors while
processing the connection acknowledgment or probe messages. Thus
this message performs the usual flow control accounting and leaves
the session hanging.
In this commit, we terminate the connection when we receive such
error messages.
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Until now, the checks for sockets in CONNECTING state was based on
the assumption that the incoming message was always from the
peer's accepted data socket.
However an application using a non-blocking socket sends an implicit
connect, this socket which is in CONNECTING state can receive error
messages from the peer's listening socket. As we discard these
messages, the application socket hangs as there due to inactivity.
In addition to this, there are other places where we process errors
but do not notify the user.
In this commit, we process such incoming error messages and notify
our users about them using sk_state_change().
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In filter_connect, we use waitqueue_active() to check for any
connections to wakeup. But waitqueue_active() is missing memory
barriers while accessing the critical sections, leading to
inconsistent results.
In this commit, we replace this with an SMP safe wq_has_sleeper()
using the generic socket callback sk_data_ready().
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 99e6608c9e "block: Add badblock management for gendisks"
allowed for drivers like pmem and software-raid to advertise a list of
bad media areas. However, it inadvertently added a 'badblocks' to all
block devices. Lets clean this up by having the 'badblocks' attribute
not be visible when the driver has not populated a 'struct badblocks'
instance in the gendisk.
Cc: Jens Axboe <axboe@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Reported-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
The only difference between ->run_work and ->delay_work, is that
the latter is used to defer running a queue. This is done by
marking the queue stopped, and scheduling ->delay_work to run
sometime in the future. While the queue is stopped, direct runs
or runs through ->run_work will not run the queue.
If we combine the handlers, then we need to handle two things:
1) If a delayed/stopped run is scheduled, then we should not run
the queue before that has been completed.
2) If a queue is delayed/stopped, the handler needs to restart
the queue. Normally a run of a queue with the stopped bit set
would be a no-op.
Case 1 is handled by modifying a currently pending queue run
to the deadline set by the caller of blk_mq_delay_queue().
Subsequent attempts to queue a queue run will find the work
item already pending, and direct runs will see a stopped queue
as before.
Case 2 is handled by adding a new bit, BLK_MQ_S_START_ON_RUN,
that tells the work handler that it should clear a stopped
queue and run the handler.
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This modifies (or adds, if not currently pending) an existing
delayed work item.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
They serve the exact same purpose. Get rid of the non-delayed
work variant, and just run it without delay for the normal case.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
list_for_each_entry() isn't super safe if we're freeing the objects
while we traverse the list. Also don't bother taking the extra
reference, the module refcounting stuff will save us from having anybody
messing with the device while we're trying to unload.
Reported-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Seems like this was forgotten in the bfq-series from Paolo. Let's do it now
so people don't miss out involving Paolo for any future changes or when
reporting bugs.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
Pull nfsd fixes from Bruce Fields:
"Thanks to Ari Kauppi and Tuomas Haanpää at Synopsis for spotting bugs
in our NFSv2/v3 xdr code that could crash the server or leak memory"
* tag 'nfsd-4.11-3' of git://linux-nfs.org/~bfields/linux:
nfsd: stricter decoding of write-like NFSv2/v3 ops
nfsd4: minor NFSv2/v3 write decoding cleanup
nfsd: check for oversized NFSv2/v3 arguments
Pull ceph fix from Ilya Dryomov:
"A fix for a kernel stack overflow bug in ceph setattr code, marked for
stable"
* tag 'ceph-for-4.11-rc9' of git://github.com/ceph/ceph-client:
ceph: fix recursion between ceph_set_acl() and __ceph_setattr()
Pull vfs fixes from Al Viro:
- fix orangefs handling of faults on write() - I'd missed that one back
when orangefs was going through review.
- readdir counterpart of "9p: cope with bogus responses from server in
p9_client_{read,write}" - server might be lying or broken, and we'd
better not overrun the kmalloc'ed buffer we are copying the results
into.
- NFS O_DIRECT read/write can leave iov_iter advanced by too much;
that's what had been causing iov_iter_pipe() warnings davej had been
seeing.
- statx_timestamp.tv_nsec type fix (s32 -> u32). That one really should
go in before 4.11.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
uapi: change the type of struct statx_timestamp.tv_nsec to unsigned
fix nfs O_DIRECT advancing iov_iter too much
p9_client_readdir() fix
orangefs_bufmap_copy_from_iovec(): fix EFAULT handling
The change in commit 1e2f82d1e9 ("statx: Kill fd-with-NULL-path
support in favour of AT_EMPTY_PATH") to error on a NULL pathname to
statx() is inconsistent.
It results in the error EINVAL for a NULL pathname. Other system calls
with similar APIs (fchownat(), fstatat(), linkat()), return EFAULT.
The solution is simply to remove the EINVAL check. As I already pointed
out in [1], user_path_at*() and filename_lookup() will handle the NULL
pathname as per the other APIs, to correctly produce the error EFAULT.
[1] https://lkml.org/lkml/2017/4/26/561
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Christoph writes:
"A couple more updates for 4.12. The biggest pile is fc and lpfc
updates from James, but there are various small fixes and cleanups as
well."
Fixes up a few merge issues, and also a warning in
lpfc_nvmet_rcv_unsol_abort() if CONFIG_NVME_TARGET_FC isn't enabled.
Signed-off-by: Jens Axboe <axboe@fb.com>
At least one driver, mtip32xx, has a hard coded dependency on
the value of the reserved tag used for internal commands. While
that should really be fixed up, for now let's ensure that we just
bypass the scheduler tags an allocation marked as reserved. They
are used for house keeping or error handling, so we can safely
ignore them in the scheduler.
Tested-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
mtip32xx supposes that 'request_idx' passed to .init_request()
is tag of the request, and use that as request's tag to initialize
command header.
After MQ IO scheduler is in, request tag assigned isn't same with
the request index anymore, so cause strange hardware failure on
mtip32xx, even whole system panic is triggered.
This patch fixes the issue by initializing command header via
request's real tag.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Leave it to the user to decide whether to enable this or not. Otherwise,
platform-specific drivers won't initialize (currently, EDAC supports
only a single platform driver loaded).
Signed-off-by: Borislav Petkov <bp@suse.de>
We already check if the message is empty before calling the client
tx_done callback. Calling completion on a wait event is also invalid
if the message is empty.
This patch moves the existing empty message check earlier.
Fixes: 2b6d83e2b8 ("mailbox: Introduce framework for mailbox")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
If a wait_for_completion_timeout() call returns due to a timeout,
complete() can get called after returning from the wait which is
incorrect and can cause subsequent transmissions on a channel to fail.
Since the wait_for_completion_timeout() sees the completion variable
is non-zero caused by the erroneous/spurious complete() call, and
it immediately returns without waiting for the time as expected by the
client.
This patch fixes the issue by skipping complete() call for the timer
expiry.
Fixes: 2b6d83e2b8 ("mailbox: Introduce framework for mailbox")
Reported-by: Alexey Klimov <alexey.klimov@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
There exists a race when msg_submit return immediately as there was an
active request being processed which may have completed just before it's
checked again in mbox_send_message. This will result in return to the
caller without waiting in mbox_send_message even when it's blocking Tx.
This patch fixes the issue by waiting for the completion always if Tx
is in blocking mode.
Fixes: 2b6d83e2b8 ("mailbox: Introduce framework for mailbox")
Reported-by: Alexey Klimov <alexey.klimov@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Alexey Klimov <alexey.klimov@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
