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Allocate the owner_id when we allocate the state and free it when we free
the state. That lets us get rid of a gnarly ida_pre_get() / ida_get_new()
loop.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Neither nfs_inode_set_delegation() nor nfs_inode_reclaim_delegation() are
generic code. They have no business delving into NFSv4 OPEN xdr structures,
so let's replace the "struct nfs_openres" parameter.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Replace the open coded bitmap implementation with a generic one.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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If we hold a delegation, then the results of the ACCESS call are protected
anyway.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Don't bother even recording an invalid change attribute if we hold a
delegation since we already know the state of our attribute cache.
We can rely on the fact that we will pick up a copy from the server
when we return the delegation.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Currently, if the NFS_INO_INVALID_ATTR flag is set, for instance by
a call to nfs_post_op_update_inode_locked(), then it will not be cleared
until all the attributes have been revalidated. This means, for instance,
that NFSv4 writes will always force a full attribute revalidation.
Track the ctime, mtime, size and change attribute separately from the
other attributes so that we can have nfs_post_op_update_inode_locked()
set them correctly, and later have the cache consistency bitmask be
able to clear them.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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If we managed to revalidate all the attributes, then there is no reason
to mark them as invalid again. We do, however want to ensure that we
set nfsi->attrtimeo correctly.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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If we received weak cache consistency data from the server, then those
attributes are up to date, and there is no reason to mark them as
dirty in the attribute cache.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Even if the change attribute is missing, it is still OK to mark the other
attributes as being up to date.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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The cache validity attribute is unsigned long, so make sure that
the flags are too.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Starting with NFSv4.1, the server is able to deduce the client id from
the SEQUENCE op which means it can always figure out whether or not
the client is holding a delegation on a file that is being changed.
For that reason, RFC5661 does not require a delegation to be unconditionally
recalled on operations such as SETATTR, RENAME, or REMOVE.
Note that for now, we continue to return READ delegations since that is
still expected by the Linux knfsd server.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Ensure that when we do finally delete the file, then we return the
delegation.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Move the delegation recall out of the generic code, and into the NFSv4
specific callback.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Move the delegation return out of generic code and down into the
NFSv4 specific unlink code.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Move the delegation return out of generic code.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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The 'fmode' argument can take an FMODE_EXEC value, which we want to
filter out before comparing to the delegation type.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Michal Kalderon has found some corner cases around device unload
with active NFS mounts that I didn't have the imagination to test
when xprtrdma device removal was added last year.
- The ULP device removal handler is responsible for deallocating
the PD. That wasn't clear to me initially, and my own testing
suggested it was not necessary, but that is incorrect.
- The transport destruction path can no longer assume that there
is a valid ID.
- When destroying a transport, ensure that ib_free_cq() is not
invoked on a CQ that was already released.
Reported-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Fixes: bebd031866ca ("xprtrdma: Support unplugging an HCA from ...")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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If we have a RECLAIM_COMPLETE with a populated cl_lock_waitq, then
that implies that a reconnect has occurred. Since we can't expect a
CB_NOTIFY_LOCK callback at that point, just wake up the entire queue
so that all the tasks can re-poll for their locks.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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The task is expected to sleep for a while here, and it's possible that
a new EXCHANGE_ID has occurred in the interim, and we were assigned a
new clientid. Since this is a per-client list, there isn't a lot of
value in vetting the clientid on the incoming request.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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We may get a notification and lose the race to another client. Ensure
that we wait again for a notification in that case.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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This information can help track down local misconfiguration issues
as well as network partitions and unresponsive servers.
There are several ways to send a ping, and with transport multi-
plexing, the exact rpc_xprt that is used is sometimes not known by
the upper layer. The rpc_xprt pointer passed to the trace point
call also has to be RCU-safe.
I found a spot inside the client FSM where an rpc_xprt pointer is
always available and safe to use.
Suggested-by: Bill Baker <Bill.Baker@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Introduce a low-overhead mechanism to report information about
latencies of individual RPCs. The goal is to enable user space to
filter the trace record for latency outliers, or build histograms,
etc.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Clean up: struct rpc_task carries a pointer to a struct rpc_clnt,
and in fact task->tk_client is always what is passed into trace
points that are already passing @task.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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If recording xprt->stat.max_slots is moved into xprt_alloc_slot,
then xprt->num_reqs is never manipulated outside
xprt->reserve_lock. There's no longer a need for xprt->num_reqs to
be atomic.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Some RPC transports have more overhead in their send_request
callouts than others. For example, for RPC-over-RDMA:
- Marshaling an RPC often has to DMA map the RPC arguments
- Registration methods perform memory registration as part of
marshaling
To capture just server and network latencies more precisely: when
sending a Call, capture the rq_xtime timestamp _after_ the transport
header has been marshaled.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Some RPC transports have more overhead in their reply handlers
than others. For example, for RPC-over-RDMA:
- RPC completion has to wait for memory invalidation, which is
not a part of the server/network round trip
- Recently a context switch was introduced into the reply handler,
which further artificially inflates the measure of RPC RTT
To capture just server and network latencies more precisely: when
receiving a reply, compute the RTT as soon as the XID is recognized
rather than at RPC completion time.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Since commit 33849792cbcd ("xprtrdma: Detect unreachable NFS/RDMA
servers more reliably"), the xprtrdma transport now has a ->timer
callout. But xprtrdma does not need to compute RTT data, only UDP
needs that. Move the xprt_update_rtt call into the UDP transport
implementation.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Refactor: Both rpcrdma_create_req call sites have to allocate the
buffer where the transport header is built, so just move that
allocation into rpcrdma_create_req.
This buffer is a fixed size. There's no needed information available
in call_allocate that is not also available when the transport is
created.
The original purpose for allocating these buffers on demand was to
reduce the possibility that an allocation failure during transport
creation will hork the mount operation during low memory scenarios.
Some relief for this rare possibility is coming up in the next few
patches.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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With FRWR, the client transport can perform memory registration and
post a Send with just a single ib_post_send.
This reduces contention between the send_request path and the Send
Completion handlers, and reduces the overhead of registering a chunk
that has multiple segments.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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RPC-over-RDMA version 1 credit accounting relies on there being a
response message for every RPC Call. This means that RPC procedures
that have no reply will disrupt credit accounting, just in the same
way as a retransmit would (since it is sent because no reply has
arrived). Deal with the "no reply" case the same way.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Create fewer MRs on average. Many workloads don't need as many as
32 MRs, and the transport can now quickly restock the MR free list.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Currently, when the MR free list is exhausted during marshaling, the
RPC/RDMA transport places the RPC task on the delayq, which forces a
wait for HZ >> 2 before the marshal and send is retried.
With this change, the transport now places such an RPC task on the
pending queue, and wakes it just as soon as more MRs have been
created. Creating more MRs typically takes less than a millisecond,
and this waking mechanism is less deadlock-prone.
Moreover, the waiting RPC task is holding the transport's write
lock, which blocks the transport from sending RPCs. Therefore faster
recovery from MR exhaustion is desirable.
This is the same mechanism that the TCP transport utilizes when
handling write buffer space exhaustion.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Clean up: The generic rq_connect_cookie is sufficient to detect RPC
Call retransmission.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Clean up: We need to check only that the value does not exceed the
range of the u8 field it's going into.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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With v4.15, on one of my NFS/RDMA clients I measured a nearly
doubling in the latency of small read and write system calls. There
was no change in server round trip time. The extra latency appears
in the whole RPC execution path.
"git bisect" settled on commit ccede7598588 ("xprtrdma: Spread reply
processing over more CPUs") .
After some experimentation, I found that leaving the WQ bound and
allowing the scheduler to pick the dispatch CPU seems to eliminate
the long latencies, and it does not introduce any new regressions.
The fix is implemented by reverting only the part of
commit ccede7598588 ("xprtrdma: Spread reply processing over more
CPUs") that dispatches RPC replies specifically on the CPU where the
matching RPC call was made.
Interestingly, saving the CPU number and later queuing reply
processing there was effective _only_ for a NFS READ and WRITE
request. On my NUMA client, in-kernel RPC reply processing for
asynchronous RPCs was dispatched on the same CPU where the RPC call
was made, as expected. However synchronous RPCs seem to get their
reply dispatched on some other CPU than where the call was placed,
every time.
Fixes: ccede7598588 ("xprtrdma: Spread reply processing over ... ")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: stable@vger.kernel.org # v4.15+
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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grub-reboot selects the submenu's first menuentry (title is "1>0") rather than ktest's
menuentry (title is "2") by mistake.
===
$ sudo cat /boot/grub/grub.cfg | grep -E "^menuentry|^submenu"
...
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option '...' {
...
submenu 'Advanced options for Ubuntu' $menuentry_id_option '...' {
...
menuentry 'ktest' {
...
===
Correct it by taking submenu entries into account in get_grub2_index().
Link: http://lkml.kernel.org/r/87poaje4as.wl-satoru.takeuchi@gmail.com
Signed-off-by: Satoru Takeuchi <satoru.takeuchi@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Per PCIe r3.1, sec 2.2.6.2 and 7.8.4, a Requester may not use 8-bit Tags
unless its Extended Tag Field Enable is set, but all Receivers/Completers
must handle 8-bit Tags correctly regardless of their Extended Tag Field
Enable.
Some devices do not handle 8-bit Tags as Completers, so add a quirk for
them. If we find such a device, we disable Extended Tags for the entire
hierarchy to make peer-to-peer DMA possible.
The Broadcom HT1100/HT2000/HT2100 seems to have issues with handling 8-bit
tags. Mark it as broken.
This fixes Xorg hangs and unresponsive keyboards with errors like this:
radeon 0000:06:00.0: GPU lockup (current fence id 0x000000000000000e last fence id 0x0000000000000
[drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD)
[drm:r600_resume [radeon]] *ERROR* r600 startup failed on resume
Fixes: 60db3a4d8cc9 ("PCI: Enable PCIe Extended Tags if supported")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=196197
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
CC: stable@vger.kernel.org # v4.11: 62ce94a7a5a5 PCI: Mark Broadcom HT2100 Root Port Extended Tags as broken
CC: stable@vger.kernel.org # v4.11
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Pull ceph updates from Ilya Dryomov:
"The big ticket items are:
- support for rbd "fancy" striping (myself).
The striping feature bit is now fully implemented, allowing mapping
v2 images with non-default striping patterns. This completes
support for --image-format 2.
- CephFS quota support (Luis Henriques and Zheng Yan).
This set is based on the new SnapRealm code in the upcoming v13.y.z
("Mimic") release. Quota handling will be rejected on older
filesystems.
- memory usage improvements in CephFS (Chengguang Xu).
Directory specific bits have been split out of ceph_file_info and
some effort went into improving cap reservation code to avoid OOM
crashes.
Also included a bunch of assorted fixes all over the place from
Chengguang and others"
* tag 'ceph-for-4.17-rc1' of git://github.com/ceph/ceph-client: (67 commits)
ceph: quota: report root dir quota usage in statfs
ceph: quota: add counter for snaprealms with quota
ceph: quota: cache inode pointer in ceph_snap_realm
ceph: fix root quota realm check
ceph: don't check quota for snap inode
ceph: quota: update MDS when max_bytes is approaching
ceph: quota: support for ceph.quota.max_bytes
ceph: quota: don't allow cross-quota renames
ceph: quota: support for ceph.quota.max_files
ceph: quota: add initial infrastructure to support cephfs quotas
rbd: remove VLA usage
rbd: fix spelling mistake: "reregisteration" -> "reregistration"
ceph: rename function drop_leases() to a more descriptive name
ceph: fix invalid point dereference for error case in mdsc destroy
ceph: return proper bool type to caller instead of pointer
ceph: optimize memory usage
ceph: optimize mds session register
libceph, ceph: add __init attribution to init funcitons
ceph: filter out used flags when printing unused open flags
ceph: don't wait on writeback when there is no more dirty pages
...
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git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver updates from Andy Shevchenko:
- Dell SMBIOS driver fixed against memory leaks.
- The fujitsu-laptop driver is cleaned up and now supports hotkeys for
Lifebook U7x7 models. Besides that the typo introduced by one of
previous clean up series has been fixed.
- Specific to x86-based laptops HID device now supports
KEY_ROTATE_LOCK_TOGGLE event which is emitted, for example, by Wacom
MobileStudio Pro 13.
- Turbo MAX 3 technology is enabled for the rest of platforms that
support Hardware-P-States feature which have core priority described
by ACPI CPPC table.
- Mellanox on x86 gets better support of I2C bus in use including
support of hotpluggable ones.
- Silead touchscreen is enabled on two tablet models, i.e Yours Y8W81
and I.T.Works TW701.
- From now on the second fan on Thinkpad P50 is supported.
- The topstar-laptop driver is reworked to support new models, in
particular Topstar U931.
* tag 'platform-drivers-x86-v4.17-1' of git://git.infradead.org/linux-platform-drivers-x86: (41 commits)
platform/x86: thinkpad_acpi: Add 2nd Fan Support for Thinkpad P50
platform/x86: dell-smbios: Fix memory leaks in build_tokens_sysfs()
intel-hid: support KEY_ROTATE_LOCK_TOGGLE
intel-hid: clean up and sort header files
platform/x86: silead_dmi: Add entry for the Yours Y8W81 tablet
platform/x86: fujitsu-laptop: Support Lifebook U7x7 hotkeys
platform/x86: mlx-platform: Add physical bus number auto detection
platform/mellanox: mlxreg-hotplug: Change input for device create routine
platform/x86: mlx-platform: Add deffered bus functionality
platform/x86: mlx-platform: Use define for the channel numbers
platform/x86: fujitsu-laptop: Revert UNSUPPORTED_CMD back to an int
platform/x86: Fix dell driver init order
platform/x86: dell-smbios: Resolve dependency error on ACPI_WMI
platform/x86: dell-smbios: Resolve dependency error on DCDBAS
platform/x86: Allow for SMBIOS backend defaults
platform/x86: dell-smbios: Link all dell-smbios-* modules together
platform/x86: dell-smbios: Rename dell-smbios source to dell-smbios-base
platform/x86: dell-smbios: Correct some style warnings
platform/x86: wmi: Fix misuse of vsprintf extension %pULL
platform/x86: intel-hid: Reset wakeup capable flag on removal
...
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Pull dmaengine updates from Vinod Koul:
"This time we have couple of new drivers along with updates to drivers:
- new drivers for the DesignWare AXI DMAC and MediaTek High-Speed DMA
controllers
- stm32 dma and qcom bam dma driver updates
- norandom test option for dmatest"
* tag 'dmaengine-4.17-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (30 commits)
dmaengine: stm32-dma: properly mask irq bits
dmaengine: stm32-dma: fix max items per transfer
dmaengine: stm32-dma: fix DMA IRQ status handling
dmaengine: stm32-dma: Improve memory burst management
dmaengine: stm32-dma: fix typo and reported checkpatch warnings
dmaengine: stm32-dma: fix incomplete configuration in cyclic mode
dmaengine: stm32-dma: threshold manages with bitfield feature
dt-bindings: stm32-dma: introduce DMA features bitfield
dt-bindings: rcar-dmac: Document r8a77470 support
dmaengine: rcar-dmac: Fix too early/late system suspend/resume callbacks
dmaengine: dw-axi-dmac: fix spelling mistake: "catched" -> "caught"
dmaengine: edma: Check the memory allocation for the memcpy dma device
dmaengine: at_xdmac: fix rare residue corruption
dmaengine: mediatek: update MAINTAINERS entry with MediaTek DMA driver
dmaengine: mediatek: Add MediaTek High-Speed DMA controller for MT7622 and MT7623 SoC
dt-bindings: dmaengine: Add MediaTek High-Speed DMA controller bindings
dt-bindings: Document the Synopsys DW AXI DMA bindings
dmaengine: Introduce DW AXI DMAC driver
dmaengine: pl330: fix a race condition in case of threaded irqs
dmaengine: imx-sdma: fix pagefault when channel is disabled during interrupt
...
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Pull remoteproc updates from Bjorn Andersson:
- add support for generating coredumps for remoteprocs using
devcoredump
- add the Qualcomm sysmon driver for intra-remoteproc crash handling
- a number of fixes in Qualcomm and IMX drivers
* tag 'rproc-v4.17' of git://github.com/andersson/remoteproc:
remoteproc: fix null pointer dereference on glink only platforms
soc: qcom: qmi: add CONFIG_NET dependency
remoteproc: imx_rproc: Slightly simplify code in 'imx_rproc_probe()'
remoteproc: imx_rproc: Re-use existing error handling path in 'imx_rproc_probe()'
remoteproc: imx_rproc: Fix an error handling path in 'imx_rproc_probe()'
samples: Introduce Qualcomm QMI sample client
remoteproc: qcom: Introduce sysmon
remoteproc: Pass type of shutdown to subdev remove
remoteproc: qcom: Register segments for core dump
soc: qcom: mdt-loader: Return relocation base
remoteproc: Rename "load_rsc_table" to "parse_fw"
remoteproc: Add remote processor coredump support
remoteproc: Remove null character write of shared mem
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Pull rpmsg updates from Bjorn Andersson:
- transition the rpmsg_trysend() code paths of SMD and GLINK to use
non-sleeping locks
- revert the overly optimistic handling of discovered SMD channels
- fix an issue in SMD where incoming messages race with the probing of
a client driver
* tag 'rpmsg-v4.17' of git://github.com/andersson/remoteproc:
rpmsg: smd: Use announce_create to process any receive work
rpmsg: Only invoke announce_create for rpdev with endpoints
rpmsg: smd: Fix container_of macros
Revert "rpmsg: smd: Create device for all channels"
rpmsg: glink: Use spinlock in tx path
rpmsg: smd: Use spinlock in tx path
rpmsg: smd: use put_device() if device_register fail
rpmsg: glink: use put_device() if device_register fail
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