Pull thermal fixes from Zhang Rui:
"Three fixes for Armada (380) and TI (dra7 and OMAP5) thermal soc
drivers"
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: armada: Update Armada 380 thermal sensor coefficients
thermal: ti-soc-thermal: OMAP5: Implement Workaround for Errata i813
thermal: ti-soc-thermal: dra7: Implement Workaround for Errata i814
A number of small, well contained bug fixes for ocrdma driver
A simple fix for the connection negotiation sequence on IB
Fix for broken AF_IB address on UD queue pair support
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull infiniband/rdma fixes from Doug Ledford:
"This should hopefully be the last request for 4.1-rc for the RDMA
stack. It contains some late ocrdma fixes that I'm including because
they are small and self contained. It also contains two bug fixes
that are simple and easily verified.
Summary:
- a number of small, well contained bug fixes for ocrdma driver
- a simple fix for the connection negotiation sequence on IB
- fix for broken AF_IB address on UD queue pair support"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
IB/cma: Fix broken AF_IB UD support
ib/cm: Change reject message type when destroying cm_id
RDMA/ocrdma: Update ocrdma version number
RDMA/ocrdma: Fail connection for MTU lesser than 512
RDMA/ocrdma: Fix dmac resolution for link local address
RDMA/ocrdma: Prevent allocation of DPP PDs if FW doesnt support it
RDMA/ocrdma: Fix the request length for RDMA_QUERY_QP mailbox command to FW.
RDMA/ocrdma: Use VID 0 if PFC is enabled and vlan is not configured
RDMA/ocrdma: Fix QP state transition in destroy_qp
RDMA/ocrdma: Report EQ full fatal error
RDMA/ocrdma: Fix EQ destroy failure during driver unload
- atmel-mci: fix bad variable type for clkdiv
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Merge tag 'mmc-4.1-rc3' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC fix from Ulf Hansson:
"One more mmc fix intended for v4.1 rc5:
MMC host:
- atmel-mci: fix bad variable type for clkdiv"
* tag 'mmc-4.1-rc3' of git://git.linaro.org/people/ulf.hansson/mmc:
mmc: atmel-mci: fix bad variable type for clkdiv
Pull HID fixes from Jiri Kosina:
"Bugfixes for HID subsystem that should go in 4.1. Important
highlights:
- the patch that extended support for HID++ protocol for TK820
touchpad turns out to be causing regressions due to firmware
issues; patch reverting back to basic support from Benjamin
Tissoires
- Wacom driver can oops for devices that report non-touch data on
touch interfaces. Fix from Ping Cheng
- gpiolib is not mandatory for i2c-hid, so the driver shouldn't fail
if gpiolib is not enabled. Fix from Mika Westerberg"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: wacom: fix an Oops caused by wacom_wac_finger_count_touches
HID: usbhid: Add HID_QUIRK_NOGET for Aten DVI KVM switch
HID: hid-sensor-hub: Fix debug lock warning
Revert "HID: logitech-hidpp: support combo keyboard touchpad TK820"
HID: i2c-hid: Do not fail probing if gpiolib is not enabled
Pull crypto fix from Herbert Xu:
"This fixes a the crash in the newly added algif_aead interface when it
tries to link SG lists"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: algif_aead - fix invalid sgl linking
Wait a little bit longer, 50mS instead of 20mS, until the driver starts
polling for pen-up. The problematic behavior before this patch is applied
is as follows. The behavior was observed on the STMPE610QTR controller.
Upon a physical pen-down event, the touchscreen reports one set of x-y-p
coordinates and a pen-down event. After that, the pen-up polling is
triggered and since the controller is not ready yet, the polling mistakenly
detects a pen-up event while the physical state is still such that the pen
is down on the touch surface.
The pen-up handling flushes the controller FIFO, so after that, all the
samples in the controller are discarded. The controller becomes ready
shortly after this bogus pen-up handling and does generate again a pen-down
interrupt. This time, the controller contains x-y-p samples which all read
as zero. Since pressure value is zero, this set of samples is effectively
ignored by userland.
In the end, the driver just bounces between pen-down and bogus pen-up
handling, generating no useful results. Fix this by giving the controller a
bit more time before polling it for pen-up.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use msecs_to_jiffies(20) instead of plain (HZ / 50), as the former is much
more explicit about it's behavior. We want to schedule the task 20 mS from
now, so make it explicit in the code.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
exception of a single locking fix in the core code. All driver fixes are
for code that was merged recently. The Samsung stuff is mostly fixes
around suspend/resume, the Qualcomm fixes are for invalid hardware
configuration data and the Silicon Labs patches are fixes following
their move away from platform_data to Device Tree.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Michael Turquette:
"The first set of clk fixes for 4.1 are all driver bugs, with the
exception of a single locking fix in the core code.
All driver fixes are for code that was merged recently. The Samsung
stuff is mostly fixes around suspend/resume, the Qualcomm fixes are
for invalid hardware configuration data and the Silicon Labs patches
are fixes following their move away from platform_data to Device Tree"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: si5351: Do not pass struct clk in platform_data
clk: si5351: Mention clock-names in the binding documentation
clk: add missing lock when call clk_core_enable in clk_set_parent
clk: exynos5420: Restore GATE_BUS_TOP on suspend
clk: qcom: Fix MSM8916 gfx3d_clk_src configuration
clk: qcom: Fix MSM8916 venus divider value
clk: exynos5433: Fix wrong PMS value of exynos5433_pll_rates
clk: exynos5433: Fix wrong parent clock of sclk_apollo clock
clk: exynos5433: Fix CLK_PCLK_MONOTONIC_CNT clk register assignment
clk: exynos5433: Fix wrong offset of PCLK_MSCL_SECURE_SMMU_JPEG
clk: Use CONFIG_ARCH_EXYNOS instead of CONFIG_ARCH_EXYNOS5433
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Merge tag 'hwmon-for-linus-v4.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixlet from Guenter Roeck:
"Update location of Jean Delvare's hwmon quilt tree"
* tag 'hwmon-for-linus-v4.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: Update the location of my quilt tree
Joydev is currently thinking some absolute mice are joystick, and that
messes up games in VMware guests, as the cursor typically gets stuck in
the top left corner.
Try to detect the event signature of a VMmouse input device and back off
for such devices. We're still incorrectly detecting, for example, the
VMware absolute USB mouse as a joystick, but adding an event signature
matching also that device would be considerably more risky, so defer that
to a later merge window.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Vijay reported that a loop as simple as ...
while true; do
tc qdisc add dev foo root handle 1: prio
tc filter add dev foo parent 1: u32 match u32 0 0 flowid 1
tc qdisc del dev foo root
rmmod cls_u32
done
... will panic the kernel. Moreover, he bisected the change
apparently introducing it to 78fd1d0ab0 ("netlink: Re-add
locking to netlink_lookup() and seq walker").
The removal of synchronize_net() from the netlink socket
triggering the qdisc to be removed, seems to have uncovered
an RCU resp. module reference count race from the tc API.
Given that RCU conversion was done after e341694e3e ("netlink:
Convert netlink_lookup() to use RCU protected hash table")
which added the synchronize_net() originally, occasion of
hitting the bug was less likely (not impossible though):
When qdiscs that i) support attaching classifiers and,
ii) have at least one of them attached, get deleted, they
invoke tcf_destroy_chain(), and thus call into ->destroy()
handler from a classifier module.
After RCU conversion, all classifier that have an internal
prio list, unlink them and initiate freeing via call_rcu()
deferral.
Meanhile, tcf_destroy() releases already reference to the
tp->ops->owner module before the queued RCU callback handler
has been invoked.
Subsequent rmmod on the classifier module is then not prevented
since all module references are already dropped.
By the time, the kernel invokes the RCU callback handler from
the module, that function address is then invalid.
One way to fix it would be to add an rcu_barrier() to
unregister_tcf_proto_ops() to wait for all pending call_rcu()s
to complete.
synchronize_rcu() is not appropriate as under heavy RCU
callback load, registered call_rcu()s could be deferred
longer than a grace period. In case we don't have any pending
call_rcu()s, the barrier is allowed to return immediately.
Since we came here via unregister_tcf_proto_ops(), there
are no users of a given classifier anymore. Further nested
call_rcu()s pointing into the module space are not being
done anywhere.
Only cls_bpf_delete_prog() may schedule a work item, to
unlock pages eventually, but that is not in the range/context
of cls_bpf anymore.
Fixes: 25d8c0d55f ("net: rcu-ify tcf_proto")
Fixes: 9888faefe1 ("net: sched: cls_basic use RCU")
Reported-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: John Fastabend <john.r.fastabend@intel.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Tested-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
That atom table does not check these bits. Fixes aux
regressions on some boards.
Reported-by: Malte Schröder <malte@tnxip.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
The index of ->planes[] array (3rd parameter) cannot be equal to MAX_PLANE.
This looks like a typo that is now fixed.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Evaluating "&mddev->disks" is simple pointer arithmetic, so
it does not need 'rcu' annotations - no dereferencing is happening.
Also enhance the comment to explain that 'rdev' in that case
is not actually a pointer to an rdev.
Reported-by: Patrick Marlier <patrick.marlier@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
The variable "sector" in "raid0_make_request()" was improperly updated
by a call to "sector_div()" which modifies its first argument in place.
Commit 47d68979cc restored this variable
after the call for later re-use. Unfortunetly the restore was done after
the referenced variable "bio" was advanced. This lead to the original
value and the restored value being different. Here we move this line to
the proper place.
One observed side effect of this bug was discarding a file though
unlinking would cause an unrelated file's contents to be discarded.
Signed-off-by: NeilBrown <neilb@suse.de>
Fixes: 47d68979cc ("md/raid0: fix bug with chunksize not a power of 2.")
Cc: stable@vger.kernel.org (any that received above backport)
URL: https://bugzilla.kernel.org/show_bug.cgi?id=98501
ops_run_reconstruct6() doesn't correctly chain asyn operations. The tx returned
by async_gen_syndrome should be added as the dependent tx of next stripe.
The issue is introduced by commit 59fc630b8b
RAID5: batch adjacent full stripe write
Reported-and-tested-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: NeilBrown <neilb@suse.de>
The vmmouse Kconfig help text was referring to an incorrect user-space
driver version. Fix this.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On v7 touchpads sometimes when 2 fingers are moved down on the touchpad
until they "fall of" the touchpad, the second touch will report 0 for y
(max y really since the y axis is inverted) and max x as coordinates,
rather then reporting 0, 0 as is expected for a non touching finger.
This commit detects this and treats these touches as non touching.
See the evemu-recording here:
https://bugzilla.redhat.com/attachment.cgi?id=1025058
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1221200
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Support for using UD and AF_IB is currently broken. The
IB_CM_SIDR_REQ_RECEIVED message is not handled properly in
cma_save_net_info() and we end up falling into code that will try and
process the request as ipv4/ipv6, which will end up failing.
The resolution is to add a check for the SIDR_REQ and call
cma_save_ib_info() with a NULL path record. Change cma_save_ib_info()
to copy the src sib info from the listen_id when the path record is NULL.
Reported-by: Hari Shankar <Hari.Shankar@netapp.com>
Signed-off-by: Matt Finlay <matt@mellanox.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When allocating a device table, if the requested allocation is smaller
than the default granule size of the ITS then, we need to round up to
the default size.
Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
[ stuart: Added comments and massaged changelog ]
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Reviewed-by: Marc Zygnier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1432134795-661-1-git-send-email-stuart.yoder@freescale.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Commit 2f0810880f changed
btrfs_set_block_group_ro to avoid trying to allocate new chunks with the
new raid profile during conversion. This fixed failures when there was
no space on the drive to allocate a new chunk, but the metadata
reserves were sufficient to continue the conversion.
But this ended up causing a regression when the drive had plenty of
space to allocate new chunks, mostly because reduce_alloc_profile isn't
using the new raid profile.
Fixing btrfs_reduce_alloc_profile is a bigger patch. For now, do a
partial revert of 2f0810880, and don't error out if we hit ENOSPC.
Signed-off-by: Chris Mason <clm@fb.com>
Tested-by: Dave Sterba <dsterba@suse.cz>
Reported-by: Holger Hoffstaette <holger.hoffstaette@googlemail.com>
This reverts commit ba9d114ec5.
.. which introduced a regression that prevented all lingering requests
requeued in kick_requests() from ever being sent to the OSDs, resulting
in a lot of missed notifies. In retrospect it's pretty obvious that
r_req_lru_item item in the case of lingering requests can be used not
only for notarget, but also for unsent linkage due to how tightly
actual map and enqueue operations are coupled in __map_request().
The assertion that was being silenced is taken care of in the previous
("libceph: request a new osdmap if lingering request maps to no osd")
commit: by always kicking homeless lingering requests we ensure that
none of them ends up on the notarget list outside of the critical
section guarded by request_mutex.
Cc: stable@vger.kernel.org # 3.18+, needs b049453221 "libceph: request a new osdmap if lingering request maps to no osd"
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
This commit does two things. First, if there are any homeless
lingering requests, we now request a new osdmap even if the osdmap that
is being processed brought no changes, i.e. if a given lingering
request turned homeless in one of the previous epochs and remained
homeless in the current epoch. Not doing so leaves us with a stale
osdmap and as a result we may miss our window for reestablishing the
watch and lose notifies.
MON=1 OSD=1:
# cat linger-needmap.sh
#!/bin/bash
rbd create --size 1 test
DEV=$(rbd map test)
ceph osd out 0
rbd map dne/dne # obtain a new osdmap as a side effect (!)
sleep 1
ceph osd in 0
rbd resize --size 2 test
# rbd info test | grep size -> 2M
# blockdev --getsize $DEV -> 1M
N.B.: Not obtaining a new osdmap in between "osd out" and "osd in"
above is enough to make it miss that resize notify, but that is a
bug^Wlimitation of ceph watch/notify v1.
Second, homeless lingering requests are now kicked just like those
lingering requests whose mapping has changed. This is mainly to
recognize that a homeless lingering request makes no sense and to
preserve the invariant that a registered lingering request is not
sitting on any of r_req_lru_item lists. This spares us a WARN_ON,
which commit ba9d114ec5 ("libceph: clear r_req_lru_item in
__unregister_linger_request()") tried to fix the _wrong_ way.
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Problem reported by: Ted Kim <ted.h.kim@oracle.com>:
We have a case where a Linux system and a non-Linux system are
trying to interoperate. The Linux host is the active side and
starts the connection establishment, but later decides to not go
through with the connection setup and does rdma_destroy_id().
The rdma_destroy_id() eventually works its way down to cm_destroy_id()
in core/cm.c, where a REJ is sent. The non-Linux system
has some trouble recognizing the REJ because of:
A. CM states which can't receive the REJ
B. Some issues about REJ formatting (missing comm ID)
ISSUE A: That part of the spec says, a Consumer Reject REJ can be
sent for a connection abort, but it goes further
and says: can send a REJ message with a "Consumer Reject"
Reason code if they are in a CM state (i.e. REP
Rcvd, MRA(REP) Sent, REQ Rcvd, MRA Sent) that allows
a REJ to be sent (lines 35-38).
Of the states listed there in that sentence, it would
seem to limit the active side to using the Consumer Reject
(for the abort case) in just the REP-Rcvd and MRA-REP-Sent
states. That is basically only after the active side
sees a REP (or alternatively goes down the state transitions
to timeout in which case a Timeout REJ is sent).
As a fix, in cm-destroy-id() move the IB-CM-MRA-REQ-RCVD case
to the same as REQ-SENT. Essentially, make a REJ sent after
getting an MRA on active side a timeout rather than Consumer-
Reject, which is arguably more correct with the CM state
diagrams previous to getting a REP.
Signed-off-by: Ted Kim <ted.h.kim@oracle.com>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
This is an alternative way of fixing:
commit db9683fb41 ("net: phy: Make sure PHY_RESUMING state change
is always processed")
When the PHY state transitions from PHY_HALTED to PHY_RESUMING, there are
two things we need to do:
1). Re-enable interrupts (and power up the physical link, if powered down)
2). Update the PHY state and net-device based on the link status.
There's no strict reason why #1 has to be done from within the main
phy_state_machine() function. There is a risk that other changes to the
PHY (e.g. setting speed/duplex, which calls phy_start_aneg()) could cause
a subsequent state transition before phy_state_machine() has processed
the PHY_RESUMING state change. This would leave the PHY with interrupts
disabled and/or still in the BMCR_PDOWN/low-power mode.
Moving enabling the interrupts and phy_resume() into phy_start() will
guarantee this work always gets done. As the PHY is already in the HALTED
state and interrupts are disabled, it shouldn't conflict with any work
being done in phy_state_machine(). The downside of this change is that if
the PHY_RESUMING state is ever entered from anywhere else, it'll also have
to repeat this work.
Signed-off-by: Tim Beale <tim.beale@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Kubecek says:
====================
IPv6 ECMP route add/replace fixes
(1) When adding a nexthop of a multipath route fails (e.g. because of a
conflict with an existing route), we are supposed to delete nexthops
already added. However, currently we try to also delete all nexthops we
haven't even tried to add yet so that a "ip route add" command can
actually remove pre-existing routes if it fails.
(2) Attempt to replace a multipath route results in a broken siblings
linked list. Following commands (like "ip route del") can then either
follow a link into freed memory or end in an infinite loop (if the slab
object has been reused).
v2: fix an omission in first patch
v3: change the semantics of replace operation to better match IPv4
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When replacing an IPv6 multipath route with "ip route replace", i.e.
NLM_F_CREATE | NLM_F_REPLACE, fib6_add_rt2node() replaces only first
matching route without fixing its siblings, resulting in corrupted
siblings linked list; removing one of the siblings can then end in an
infinite loop.
IPv6 ECMP implementation is a bit different from IPv4 so that route
replacement cannot work in exactly the same way. This should be a
reasonable approximation:
1. If the new route is ECMP-able and there is a matching ECMP-able one
already, replace it and all its siblings (if any).
2. If the new route is ECMP-able and no matching ECMP-able route exists,
replace first matching non-ECMP-able (if any) or just add the new one.
3. If the new route is not ECMP-able, replace first matching
non-ECMP-able route (if any) or add the new route.
We also need to remove the NLM_F_REPLACE flag after replacing old
route(s) by first nexthop of an ECMP route so that each subsequent
nexthop does not replace previous one.
Fixes: 51ebd31815 ("ipv6: add support of equal cost multipath (ECMP)")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If adding a nexthop of an IPv6 multipath route fails, comment in
ip6_route_multipath() says we are going to delete all nexthops already
added. However, current implementation deletes even the routes it
hasn't even tried to add yet. For example, running
ip route add 1234:5678::/64 \
nexthop via fe80::aa dev dummy1 \
nexthop via fe80::bb dev dummy1 \
nexthop via fe80::cc dev dummy1
twice results in removing all routes first command added.
Limit the second (delete) run to nexthops that succeeded in the first
(add) run.
Fixes: 51ebd31815 ("ipv6: add support of equal cost multipath (ECMP)")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The only possible problem of using mutex_lock() instead of trylock
is about deadlock.
If there aren't any locks held before calling blkdev_reread_part(),
deadlock can't be caused by this conversion.
If there are locks held before calling blkdev_reread_part(),
and if these locks arn't required in open, close handler and I/O
path, deadlock shouldn't be caused too.
Both user space's ioctl(BLKRRPART) and md_setup_drive() from
init/do_mounts_md.c belongs to the 1st case, so the conversion is safe
for the two cases.
For loop, the previous patches in this pathset has fixed the ABBA lock
dependency, so the conversion is OK.
For nbd, tx_lock is held when calling the function:
- both open and release won't hold the lock
- when blkdev_reread_part() is run, I/O thread has been stopped
already, so tx_lock won't be acquired in I/O path at that time.
- so the conversion won't cause deadlock for nbd
For dasd, both dasd_open(), dasd_release() and request function don't
acquire any mutex/semphone, so the conversion should be safe.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This patch exports blkdev_reread_part() for block drivers, also
introduce __blkdev_reread_part().
For some drivers, such as loop, reread of partitions can be run
from the release path, and bd_mutex may already be held prior to
calling ioctl_by_bdev(bdev, BLKRRPART, 0), so introduce
__blkdev_reread_part for use in such cases.
CC: Christoph Hellwig <hch@lst.de>
CC: Jens Axboe <axboe@kernel.dk>
CC: Tejun Heo <tj@kernel.org>
CC: Alexander Viro <viro@zeniv.linux.org.uk>
CC: Markus Pargmann <mpa@pengutronix.de>
CC: Stefan Weinhuber <wein@de.ibm.com>
CC: Stefan Haberland <stefan.haberland@de.ibm.com>
CC: Sebastian Ott <sebott@linux.vnet.ibm.com>
CC: Fabian Frederick <fabf@skynet.be>
CC: Ming Lei <ming.lei@canonical.com>
CC: David Herrmann <dh.herrmann@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Peter Zijlstra <peterz@infradead.org>
CC: nbd-general@lists.sourceforge.net
CC: linux-s390@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This reverts commit c055d5b03b.
There are two issues:
'dnat_took_place' made me think that this is related to
-j DNAT/MASQUERADE.
But thats only one part of the story. This is also relevant for SNAT
when we undo snat translation in reverse/reply direction.
Furthermore, I originally wanted to do this mainly to avoid
storing ipv6 addresses once we make DNAT/REDIRECT work
for ipv6 on bridges.
However, I forgot about SNPT/DNPT which is stateless.
So we can't escape storing address for ipv6 anyway. Might as
well do it for ipv4 too.
Reported-and-tested-by: Bernhard Thaler <bernhard.thaler@wvnet.at>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
After improving setsockopt() coverage in trinity, I started triggering
vmalloc failures pretty reliably from this code path:
warn_alloc_failed+0xe9/0x140
__vmalloc_node_range+0x1be/0x270
vzalloc+0x4b/0x50
__do_replace+0x52/0x260 [ip_tables]
do_ipt_set_ctl+0x15d/0x1d0 [ip_tables]
nf_setsockopt+0x65/0x90
ip_setsockopt+0x61/0xa0
raw_setsockopt+0x16/0x60
sock_common_setsockopt+0x14/0x20
SyS_setsockopt+0x71/0xd0
It turns out we don't validate that the num_counters field in the
struct we pass in from userspace is initialized.
The same problem also exists in ebtables, arptables, ipv6, and the
compat variants.
Signed-off-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
nfnetlink_{log,queue}_init() register the netlink callback nf*_rcv_nl_event
before registering the pernet_subsys, but the callback relies on data
structures allocated by pernet init functions.
When nfnetlink_{log,queue} is loaded, if a netlink message is received after
the netlink callback is registered but before the pernet_subsys is registered,
the kernel will panic in the sequence
nfulnl_rcv_nl_event
nfnl_log_pernet
net_generic
BUG_ON(id == 0) where id is nfnl_log_net_id.
The panic can be easily reproduced in 4.0.3 by:
while true ;do modprobe nfnetlink_log ; rmmod nfnetlink_log ; done &
while true ;do ip netns add dummy ; ip netns del dummy ; done &
This patch moves register_pernet_subsys to earlier in nfnetlink_log_init.
Notice that the BUG_ON hit in 4.0.3 was recently removed in 2591ffd308
["netns: remove BUG_ONs from net_generic()"].
Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The MPX feature requires eager KVM FPU restore support. We have verified
that MPX cannot work correctly with the current lazy KVM FPU restore
mechanism. Eager KVM FPU restore should be enabled if the MPX feature is
exposed to VM.
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Signed-off-by: Liang Li <liang.z.li@intel.com>
[Also activate the FPU on AMD processors. - Paolo]
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We assumed all touch interfaces report touch data. But, Bamboo
and Intuos non-touch devices report express keys on touch
interface. We need to check touch_max before counting touches.
Reported-by: Tasos Sahanidis <tasos@tasossah.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
We've got reports that ALC3226 (a Dell variant of ALC292) gives click
noises at transition from D3 to D0 when the widget power-saving is
enabled. Further debugging session showed that avoiding it isn't
trivial, unfortunately, since paths are basically activated
dynamically while the pins have been already enabled.
This patch disables the widget power-saving for such codecs.
Reported-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The widget (node) power-saves restore the widget states at each
transition from D3 to D0 on each node. This was added in the commit
[d545a57c5f84:ALSA: hda - Sync node attributes at resume from widget
power saving]. However, the test was rater false-positive; this
wasn't needed for any codecs.
Since the resync may take significant number of additional verbs to be
executed, it's better to reduce it. Let's disable it for now again.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The recently added DT support for the ac97 driver is causing
a gcc warning:
sound/atmel/ac97c.c: In function 'atmel_ac97c_probe_dt':
sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable]
const struct of_device_id *match;
The variable is clearly unused, so we can remove it.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexander Stein <alexanders83@web.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
If while setting a block group read-only we end up allocating a system
chunk, through check_system_chunk(), we were not doing it while holding
the chunk mutex which is a problem if a concurrent chunk allocation is
happening, through do_chunk_alloc(), as it means both block groups can
end up using the same logical addresses and physical regions in the
device(s). So make sure we hold the chunk mutex.
Cc: stable@vger.kernel.org # 4.0+
Fixes: 2f0810880f ("btrfs: delete chunk allocation attemp when
setting block group ro")
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
btrfs_check_shared() is leaking a return value of '1' from
find_parent_nodes(). As a result, callers (in this case, extent_fiemap())
are told extents are shared when they are not. This in turn broke fiemap on
btrfs for kernels v3.18 and up.
The fix is simple - we just have to clear 'ret' after we are done processing
the results of find_parent_nodes().
It wasn't clear to me at first what was happening with return values in
btrfs_check_shared() and find_parent_nodes() - thanks to Josef for the help
on irc. I added documentation to both functions to make things more clear
for the next hacker who might come across them.
If we could queue this up for -stable too that would be great.
Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
Summary:
- Use generic function to get buffer count instead of specific one.
In case of Exynos DRM, There was a special case which decides pixel
format of a given buffer according to planer types, which is NV12M and NV12.
However, NV12M doesn't exist in drm fourcc so it removes
exynos_drm_format_num_buffers() specific to Exynos DRM and use a generic function,
drm_format_num_planes() instead.
- Allow mixer driver to support NV21 format for Video processor.
This format was already supported but we just missed DRM_FORMAT_NV21 case
so this patch considers the case so that Mixer driver can handle it correctly.
- Add regression fix and some code cleanups.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: dp: Lower level of EDID read success message
drm/exynos: cleanup exynos_drm_plane
drm/exynos: 'win' is always unsigned
drm/exynos: mixer: don't dump registers under spinlock
drm/exynos: Consolidate return statements in fimd_bind()
drm/exynos: Constify exynos_drm_crtc_ops
drm/exynos: Fix build breakage on !DRM_EXYNOS_FIMD
drm/exynos: mixer: Constify platform_device_id
drm/exynos: mixer: cleanup pixelformat handling
drm/exynos: mixer: also allow NV21 for the video processor
drm/exynos: mixer: remove buffer count handling in vp_video_buffer()
drm/exynos: plane: honor buffer offset for dma_addr
drm/exynos: fb: use drm_format_num_planes to get buffer count
problem that leads to dropped frames.
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Merge tag 'mac80211-for-davem-2015-05-19' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
This has just a single fix, for a WEP tailroom check
problem that leads to dropped frames.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
After sending the new data packets to probe (step 2), F-RTO may
incorrectly send more probes if the next ACK advances SND_UNA and
does not sack new packet. However F-RTO RFC 5682 probes at most
once. This bug may cause sender to always send new data instead of
repairing holes, inducing longer HoL blocking on the receiver for
the application.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Undo based on TCP timestamps should only happen on ACKs that advance
SND_UNA, according to the Eifel algorithm in RFC 3522:
Section 3.2:
(4) If the value of the Timestamp Echo Reply field of the
acceptable ACK's Timestamps option is smaller than the
value of RetransmitTS, then proceed to step (5),
Section Terminology:
We use the term 'acceptable ACK' as defined in [RFC793]. That is an
ACK that acknowledges previously unacknowledged data.
This is because upon receiving an out-of-order packet, the receiver
returns the last timestamp that advances RCV_NXT, not the current
timestamp of the packet in the DUPACK. Without checking the flag,
the DUPACK will cause tcp_packet_delayed() to return true and
tcp_try_undo_loss() will revert cwnd reduction.
Note that we check the condition in CA_Recovery already by only
calling tcp_try_undo_partial() if FLAG_SND_UNA_ADVANCED is set or
tcp_try_undo_recovery() if snd_una crosses high_seq.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit <5cf3d46192fc> ("udp: Simplify__udp*_lib_mcast_deliver")
simplified the filter for incoming IPv6 multicast but removed
the check of the local socket address and the UDP destination
address.
This patch restores the filter to prevent sockets bound to a IPv6
multicast IP to receive other UDP traffic link unicast.
Signed-off-by: Henning Rogge <hrogge@gmail.com>
Fixes: 5cf3d46192 ("udp: Simplify__udp*_lib_mcast_deliver")
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A non-percpu VIRQ (e.g., VIRQ_CONSOLE) may be freed on a different
VCPU than it is bound to. This can result in a race between
handle_percpu_irq() and removing the action in __free_irq() because
handle_percpu_irq() does not take desc->lock. The interrupt handler
sees a NULL action and oopses.
Only use the percpu chip/handler for per-CPU VIRQs (like VIRQ_TIMER).
# cat /proc/interrupts | grep virq
40: 87246 0 xen-percpu-virq timer0
44: 0 0 xen-percpu-virq debug0
47: 0 20995 xen-percpu-virq timer1
51: 0 0 xen-percpu-virq debug1
69: 0 0 xen-dyn-virq xen-pcpu
74: 0 0 xen-dyn-virq mce
75: 29 0 xen-dyn-virq hvc_console
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Cc: <stable@vger.kernel.org>
Highlights include:
- Fix a Linux-4.1 regression affecting stat()
- Take an extra reference to fl->fl_file when running a setlk
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Merge tag 'nfs-for-4.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull two NFS client bugfixes from Trond Myklebust:
"Highlights include:
- fix a Linux-4.1 regression affecting stat()
- take an extra reference to fl->fl_file when running a setlk"
* tag 'nfs-for-4.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
nfs: take extra reference to fl->fl_file when running a setlk
nfs: stat(2) fails during cthon04 basic test5 on NFSv4.0
Linus Torvalds
Marek Vasut
Thomas Hellstrom
Daniel Borkmann
Alex Deucher
Stephane Viau
NeilBrown
Eric Work
Shaohua Li
Hans de Goede
Matthew Finlay
Minghuan Lian
Chris Mason
Ilya Dryomov
Ted Kim
Tim Beale
David S. Miller
Michal Kubeček
Ming Lei
Jarod Wilson
Florian Westphal
Dave Jones
Francesco Ruggeri
Liang Li
Paolo Bonzini
Andrea Arcangeli
Ping Cheng
Takashi Iwai
Arnd Bergmann
Filipe Manana
Mark Fasheh
Dave Airlie
Yuchung Cheng
Henning Rogge
David Vrabel