- 17 May, 2016 11 commits
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Chuck Lever authored
Avoid the latency and interrupt overhead of registering a Write chunk when handling NFS READ requests of a few hundred bytes or less. This change does not interoperate with Linux NFS/RDMA servers that do not have commit 9d11b51c ('svcrdma: Fix send_reply() scatter/gather set-up'). Commit 9d11b51c was introduced in v4.3, and is included in 4.2.y, 4.1.y, and 3.18.y. Oracle bug 22925946 has been filed to request that the above fix be included in the Oracle Linux UEK4 NFS/RDMA server. Red Hat bugzillas 1327280 and 1327554 have been filed to request that RHEL NFS/RDMA server backports include the above fix. Workaround: Replace the "proto=rdma,port=20049" mount options with "proto=tcp" until commit 9d11b51c is applied to your NFS server. Signed-off-by:
Chuck Lever <chuck.lever@oracle.com> Tested-by:
Steve Wise <swise@opengridcomputing.com> Reviewed-by:
Sagi Grimberg <sagi@grimberg.me> Signed-off-by:
Anna Schumaker <Anna.Schumaker@Netapp.com>
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Chuck Lever authored
When deciding whether to send a Call inline, rpcrdma_marshal_req doesn't take into account header bytes consumed by chunk lists. This results in Call messages on the wire that are sometimes larger than the inline threshold. Likewise, when a Write list or Reply chunk is in play, the server's reply has to emit an RDMA Send that includes a larger-than-minimal RPC-over-RDMA header. The actual size of a Call message cannot be estimated until after the chunk lists have been registered. Thus the size of each RPC-over-RDMA header can be estimated only after chunks are registered; but the decision to register chunks is based on the size of that header. Chicken, meet egg. The best a client can do is estimate header size based on the largest header that might occur, and then ensure that inline content is always smaller than that. Signed-off-by:
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Chuck Lever authored
Send buffer space is shared between the RPC-over-RDMA header and an RPC message. A large RPC-over-RDMA header means less space is available for the associated RPC message, which then has to be moved via an RDMA Read or Write. As more segments are added to the chunk lists, the header increases in size. Typical modern hardware needs only a few segments to convey the maximum payload size, but some devices and registration modes may need a lot of segments to convey data payload. Sometimes so many are needed that the remaining space in the Send buffer is not enough for the RPC message. Sending such a message usually fails. To ensure a transport can always make forward progress, cap the number of RDMA segments that are allowed in chunk lists. This prevents less-capable devices and memory registrations from consuming a large portion of the Send buffer by reducing the maximum data payload that can be conveyed with such devices. For now I choose an arbitrary maximum of 8 RDMA segments. This allows a maximum size RPC-over-RDMA header to fit nicely in the current 1024 byte inline threshold with over 700 bytes remaining for an inline RPC message. The current maximum data payload of NFS READ or WRITE requests is one megabyte. To convey that payload on a client with 4KB pages, each chunk segment would need to handle 32 or more data pages. This is well within the capabilities of FMR. For physical registration, the maximum payload size on platforms with 4KB pages is reduced to 32KB. For FRWR, a device's maximum page list depth would need to be at least 34 to support the maximum 1MB payload. A device with a smaller maximum page list depth means the maximum data payload is reduced when using that device. Signed-off-by:
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Chuck Lever authored
Currently the sysctls that allow setting the inline threshold allow any value to be set. Small values only make the transport run slower. The default 1KB setting is as low as is reasonable. And the logic that decides how to divide a Send buffer between RPC-over-RDMA header and RPC message assumes (but does not check) that the lower bound is not crazy (say, 57 bytes). Send and receive buffers share a page with some control information. Values larger than about 3KB can't be supported, currently. Signed-off-by:
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Chuck Lever authored
RPC-over-RDMA transports have a limit on how large a backward direction (backchannel) RPC message can be. Ensure that the NFSv4.x CREATE_SESSION operation advertises this limit to servers. Signed-off-by:
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Chuck Lever authored
Commit 176e21ee ("SUNRPC: Support for RPC over AF_LOCAL transports") added a 5-character netid, but did not bump RPCBIND_MAXNETIDLEN from 4 to 5. Fixes: 176e21ee ("SUNRPC: Support for RPC over AF_LOCAL ...") Signed-off-by:
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Shirley Ma authored
RFC 5666: The "rdma" netid is to be used when IPv4 addressing is employed by the underlying transport, and "rdma6" for IPv6 addressing. Add mount -o proto=rdma6 option to support NFS/RDMA IPv6 addressing. Changes from v2: - Integrated comments from Chuck Level, Anna Schumaker, Trodt Myklebust - Add a little more to the patch description to describe NFS/RDMA IPv6 suggested by Chuck Level and Anna Schumaker - Removed duplicated rdma6 define - Remove Opt_xprt_rdma mountfamily since it doesn't support Signed-off-by:
Shirley Ma <shirley.ma@oracle.com> Reviewed-by:
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Tigran Mkrtchyan authored
OPEN_CREATE with EXCLUSIVE4_1 sends initial file permission. Ignoring fact, that server have indicated that file mod is set, client will send yet another SETATTR request, but, as mode is already set, new SETATTR will be empty. This is not a problem, nevertheless an extra roundtrip and slow open on high latency networks. This change is aims to skip extra setattr after open if there are no attributes to be set. Signed-off-by:
Tigran Mkrtchyan <tigran.mkrtchyan@desy.de> Signed-off-by:
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Anna Schumaker authored
This adds the copy_range file_ops function pointer used by the sys_copy_range() function call. This patch only implements sync copies, so if an async copy happens we decode the stateid and ignore it. Signed-off-by:Anna Schumaker <bjschuma@netapp.com>
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Anna Schumaker authored
Copy will use this to set up a commit request for a generic range. I don't want to allocate a new pagecache entry for the file, so I needed to change parts of the commit path to handle requests with a null wb_page. Signed-off-by: -
Olga Kornievskaia authored
Commit 80f96427 ("NFSv4.x: Enforce the ca_maxreponsesize_cached on the back channel") causes an oops when it receives a callback with cachethis=yes. [ 109.667378] BUG: unable to handle kernel NULL pointer dereference at 00000000000002c8 [ 109.669476] IP: [<ffffffffa08a3e68>] nfs4_callback_compound+0x4f8/0x690 [nfsv4] [ 109.671216] PGD 0 [ 109.671736] Oops: 0000 [#1] SMP [ 109.705427] CPU: 1 PID: 3579 Comm: nfsv4.1-svc Not tainted 4.5.0-rc1+ #1 [ 109.706987] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/20/2014 [ 109.709468] task: ffff8800b4408000 ti: ffff88008448c000 task.ti: ffff88008448c000 [ 109.711207] RIP: 0010:[<ffffffffa08a3e68>] [<ffffffffa08a3e68>] nfs4_callback_compound+0x4f8/0x690 [nfsv4] [ 109.713521] RSP: 0018:ffff88008448fca0 EFLAGS: 00010286 [ 109.714762] RAX: ffff880081ee202c RBX: ffff8800b7b5b600 RCX: 0000000000000001 [ 109.716427] RDX: 0000000000000008 RSI: 0000000000000008 RDI: 0000000000000000 [ 109.718091] RBP: ffff88008448fda8 R08: 0000000000000000 R09: 000000000b000000 [ 109.719757] R10: ffff880137786000 R11: ffff8800b7b5b600 R12: 0000000001000000 [ 109.721415] R13: 0000000000000002 R14: 0000000053270000 R15: 000000000000000b [ 109.723061] FS: 0000000000000000(0000) GS:ffff880139640000(0000) knlGS:0000000000000000 [ 109.724931] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.726278] CR2: 00000000000002c8 CR3: 0000000034d50000 CR4: 00000000001406e0 [ 109.727972] Stack: [ 109.728465] ffff880081ee202c ffff880081ee201c 000000008448fcc0 ffff8800baccb800 [ 109.730349] ffff8800baccc800 ffffffffa08d0380 0000000000000000 0000000000000000 [ 109.732211] ffff8800b7b5b600 0000000000000001 ffffffff81d073c0 ffff880081ee3090 [ 109.734056] Call Trace: [ 109.734657] [<ffffffffa03795d4>] svc_process_common+0x5c4/0x6c0 [sunrpc] [ 109.736267] [<ffffffffa0379a4c>] bc_svc_process+0x1fc/0x360 [sunrpc] [ 109.737775] [<ffffffffa08a2c2c>] nfs41_callback_svc+0x10c/0x1d0 [nfsv4] [ 109.739335] [<ffffffff810cb380>] ? prepare_to_wait_event+0xf0/0xf0 [ 109.740799] [<ffffffffa08a2b20>] ? nfs4_callback_svc+0x50/0x50 [nfsv4] [ 109.742349] [<ffffffff810a6998>] kthread+0xd8/0xf0 [ 109.743495] [<ffffffff810a68c0>] ? kthread_park+0x60/0x60 [ 109.744776] [<ffffffff816abc4f>] ret_from_fork+0x3f/0x70 [ 109.746037] [<ffffffff810a68c0>] ? kthread_park+0x60/0x60 [ 109.747324] Code: cc 45 31 f6 48 8b 85 00 ff ff ff 44 89 30 48 8b 85 f8 fe ff ff 44 89 20 48 8b 9d 38 ff ff ff 48 8b bd 30 ff ff ff 48 85 db 74 4c <4c> 8b af c8 02 00 00 4d 8d a5 08 02 00 00 49 81 c5 98 02 00 00 [ 109.754361] RIP [<ffffffffa08a3e68>] nfs4_callback_compound+0x4f8/0x690 [nfsv4] [ 109.756123] RSP <ffff88008448fca0> [ 109.756951] CR2: 00000000000002c8 [ 109.757738] ---[ end trace 2b8555511ab5dfb4 ]--- [ 109.758819] Kernel panic - not syncing: Fatal exception [ 109.760126] Kernel Offset: disabled [ 118.938934] ---[ end Kernel panic - not syncing: Fatal exception It doesn't unlock the table nor does it set the cps->clp pointer which is later needed by nfs4_cb_free_slot(). Fixes: 80f96427 ("NFSv4.x: Enforce the ca_maxresponsesize_cached ...") CC: stable@vger.kernel.org Signed-off-by:
Olga Kornievskaia <kolga@netapp.com> Signed-off-by:
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- 09 May, 2016 13 commits
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J. Bruce Fields authored
There's no guarantee that an IP address in a different network namespace actually represents the same endpoint. Also, if we allow unprivileged nfs mounts some day then this might allow an unprivileged user in another network namespace to misdirect somebody else's nfs mounts. If sharing between containers is really what's wanted then that could still be arranged explicitly, for example with bind mounts. Reported-by:
"Eric W. Biederman" <ebiederm@redhat.com> Signed-off-by:
J. Bruce Fields <bfields@redhat.com> Signed-off-by:
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Chuck Lever authored
At Connectathon 2016, we found that recent upstream Linux clients would occasionally send a LOCK operation with a zero stateid. This appeared to happen in close proximity to another thread returning a delegation before unlinking the same file while it remained open. Earlier, the client received a write delegation on this file and returned the open stateid. Now, as it is getting ready to unlink the file, it returns the write delegation. But there is still an open file descriptor on that file, so the client must OPEN the file again before it returns the delegation. Since commit 24311f88 ('NFSv4: Recovery of recalled read delegations is broken'), nfs_open_delegation_recall() clears the NFS_DELEGATED_STATE flag _before_ it sends the OPEN. This allows a racing LOCK on the same inode to be put on the wire before the OPEN operation has returned a valid open stateid. To eliminate this race, serialize delegation return with the acquisition of a file lock on the same file. Adopt the same approach as is used in the unlock path. This patch also eliminates a similar race seen when sending a LOCK operation at the same time as returning a delegation on the same file. Fixes: 24311f88 ('NFSv4: Recovery of recalled read ... ') Signed-off-by:
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Jeff Layton authored
A mirror can be shared between multiple layouts, even with different iomodes. That makes stats gathering simpler, but it causes a problem when we get different creds in READ vs. RW layouts. The current code drops the newer credentials onto the floor when this occurs. That's problematic when you fetch a READ layout first, and then a RW. If the READ layout doesn't have the correct creds to do a write, then writes will fail. We could just overwrite the READ credentials with the RW ones, but that would break the ability for the server to fence the layout for reads if things go awry. We need to be able to revert to the earlier READ creds if the RW layout is returned afterward. The simplest fix is to just keep two sets of creds per mirror. One for READ layouts and one for RW, and then use the appropriate set depending on the iomode of the layout segment. Also fix up some RCU nits that sparse found. Signed-off-by:
Jeff Layton <jeff.layton@primarydata.com> Signed-off-by:
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Jeff Layton authored
We're just as likely to have allocation problems here as we would if we delay looking up the credential like we currently do. Fix the code to get a rpc_cred reference early, as soon as the mirror is set up. This allows us to eliminate the mirror early if there is a problem getting an rpc credential. This also allows us to drop the uid/gid from the layout_mirror struct as well. In the event that we find an existing mirror where this one would go, we swap in the new creds unconditionally, and drop the reference to the old one. Note that the old ff_layout_update_mirror_cred function wouldn't set this pointer unless the DS version was 3, but we don't know what the DS version is at this point. I'm a little unclear on why it did that as you still need creds to talk to v4 servers as well. I have the code set it regardless of the DS version here. Also note the change to using generic creds instead of calling lookup_cred directly. With that change, we also need to populate the group_info pointer in the acred as some functions expect that to never be NULL. Instead of allocating one every time however, we can allocate one when the module is loaded and share it since the group_info is refcounted. Signed-off-by:
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Jeff Layton authored
In later patches, we're going to want to allow the creds to be updated when we get a new layout with updated creds. Have this function take a reference to the cred that is later put once the call has been dispatched. Also, prepare for this change by ensuring we follow RCU rules when getting a reference to the cred as well. Signed-off-by:
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Jeff Layton authored
All the callers already call that function before calling into here, so it ends up being a no-op anyway. Signed-off-by:
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Jeff Layton authored
Sometimes we might have a RCU managed credential pointer and don't want to use locking to handle it. Add a function that will take a reference to the cred iff the refcount is not already zero. Callers can dereference the pointer under the rcu_read_lock and use that function to take a reference only if the cred is not on its way to destruction. Signed-off-by:
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Weston Andros Adamson authored
Add function rpc_lookup_generic_cred, which allows lookups of a generic credential that's not current_cred(). [jlayton: add gfp_t parm] Signed-off-by:
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Jeff Layton authored
We need to be able to call the generic_cred creator from different contexts. Add a gfp_t parm to the crcreate operation and to rpcauth_lookup_credcache. For now, we just push the gfp_t parms up one level to the *_lookup_cred functions. Signed-off-by:
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Benjamin Coddington authored
An xdr_buf with head[0].iov_len = 0 and page_len = 0 will cause xdr_init_decode() to incorrectly setup the xdr_stream. Specifically, xdr->end is never initialized. Signed-off-by:
Benjamin Coddington <bcodding@redhat.com> Signed-off-by:
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Dave Wysochanski authored
Commit ea2cf228 created nfs_commit_info and saved &inode->i_lock inside this NFS specific structure. This obscures the usage of i_lock. Instead, save struct inode * so later it's clear the spinlock taken is i_lock. Should be no functional change. Signed-off-by:
Dave Wysochanski <dwysocha@redhat.com> Signed-off-by:
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Weston Andros Adamson authored
This will pop a warning if we count too many good bytes. Signed-off-by:
Weston Andros Adamson <dros@primarydata.com> Signed-off-by:
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Weston Andros Adamson authored
Like other resend paths, mark the (old) hdr as NFS_IOHDR_REDO. This ensures the hdr completion function will not count the (old) hdr as good bytes. Also, vector the error back through the hdr->task.tk_status like other retry calls. This fixes a bug with the FlexFiles layout where libaio was reporting more bytes read than requested. Signed-off-by:
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- 08 May, 2016 1 commit
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Linus Torvalds authored
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- 07 May, 2016 7 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull misc driver fixes from Gfreg KH: "Here are three small fixes for some driver problems that were reported. Full details in the shortlog below. All of these have been in linux-next with no reported issues" * tag 'char-misc-4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: nvmem: mxs-ocotp: fix buffer overflow in read Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read() misc: mic: Fix for double fetch security bug in VOP driver
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull IIO driver fixes from Grek KH: "It's really just IIO drivers here, some small fixes that resolve some 'crash on boot' errors that have shown up in the -rc series, and other bugfixes that are required. All have been in linux-next with no reported problems" * tag 'staging-4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: iio: imu: mpu6050: Fix name/chip_id when using ACPI iio: imu: mpu6050: fix possible NULL dereferences iio:adc:at91-sama5d2: Repair crash on module removal iio: ak8975: fix maybe-uninitialized warning iio: ak8975: Fix NULL pointer exception on early interrupt
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are some last-remaining fixes for USB drivers to resolve issues that have shown up in testing. And two new device ids as well. All of these have been in linux-next with no reported issues" * tag 'usb-4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: Revert "USB / PM: Allow USB devices to remain runtime-suspended when sleeping" usb: musb: jz4740: fix error check of usb_get_phy() Revert "usb: musb: musb_host: Enable HCD_BH flag to handle urb return in bottom half" usb: musb: gadget: nuke endpoint before setting its descriptor to NULL USB: serial: cp210x: add Straizona Focusers device ids USB: serial: cp210x: add ID for Link ECU
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "These are a number of updates to fix a few problems found in the ARM nommu code over the last couple of years, caused mostly by changes on the mmu side" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8573/1: domain: move {set,get}_domain under config guard ARM: 8572/1: nommu: change memory reserve for the vectors ARM: 8571/1: nommu: fix PMSAv7 setup
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media fixes from Mauro Carvalho Chehab: - deadlock fixes on driver probe at exynos4-is and s43-camif drivers - a build breakage if media controller is enabled and USB or PCI is built as module. * tag 'media/v4.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] media-device: fix builds when USB or PCI is compiled as module [media] media: s3c-camif: fix deadlock on driver probe() [media] media: exynos4-is: fix deadlock on driver probe
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libataLinus Torvalds authored
Pull libata fixes from Tejun Heo: "An ahci driver addition and updates to ahci port enable handling for some platform devices" * 'for-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ata: add AMD Seattle platform driver ARM: dts: apq8064: add ahci ports-implemented mask ata: ahci-platform: Add ports-implemented DT bindings. libahci: save port map for forced port map
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdmaLinus Torvalds authored
Pull rdma fix from Doug Ledford: "Fix for max sector calculation in iSER" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: IB/iser: Fix max_sectors calculation
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- 06 May, 2016 8 commits
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull writeback fix from Jens Axboe: "Just a single fix for domain aware writeback, fixing a regression that can cause balance_dirty_pages() to keep looping while not getting any work done" * 'for-linus' of git://git.kernel.dk/linux-block: writeback: Fix performance regression in wb_over_bg_thresh()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Ingo Molnar: "This contains two fixes: a boot fix for older SGI/UV systems, and an APIC calibration fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tsc: Read all ratio bits from MSR_PLATFORM_INFO x86/platform/UV: Bring back the call to map_low_mmrs in uv_system_init
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management and ACPI fixes from Rafael Wysocki: "Fixes for problems introduced or discovered recently (intel_pstate, sti-cpufreq, ARM64 cpuidle, Operating Performance Points framework, generic device properties framework) and one fix for a hotplug-related deadlock in ACPICA that's been there forever, but is nasty enough. Specifics: - Fix for a recent regression in the intel_pstate driver causing it to fail to restore the HWP (HW-managed P-states) configuration of the boot CPU after suspend-to-RAM (Rafael Wysocki). - Fix for two recent regressions in the intel_pstate driver, one that can trigger a divide by zero if the driver is accessed via sysfs before it manages to take the first sample and one causing it to fail to update a structure field used in a trace point, so the information coming from it is less useful (Rafael Wysocki). - Fix for a problem in the sti-cpufreq driver introduced during the 4.5 cycle that causes it to break CPU PM in multi-platform kernels by registering cpufreq-dt (which subsequently doesn't work) unconditionally and preventing the driver that would actually work from registering (Sudeep Holla). - Stable-candidate fix for an ARM64 cpuidle issue causing idle state usage counters to be incorrectly updated for idle states that were not entered due to errors (James Morse). - Fix for a recently introduced issue in the OPP (Operating Performance Points) framework causing it to print bogus error messages for missing optional regulators (Viresh Kumar). - Fix for a recently introduced issue in the generic device properties framework that may cause it to attempt to dereferece and invalid pointer in some cases (Heikki Krogerus). - Fix for a deadlock in the ACPICA core that may be triggered by device (eg Thunderbolt) hotplug (Prarit Bhargava)" * tag 'pm+acpi-4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / OPP: Remove useless check ACPICA: Dispatcher: Update thread ID for recursive method calls intel_pstate: Fix intel_pstate_get() cpufreq: intel_pstate: Fix HWP on boot CPU after system resume cpufreq: st: enable selective initialization based on the platform ARM: cpuidle: Pass on arm_cpuidle_suspend()'s return value device property: Avoid potential dereferences of invalid pointers -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fix from Ingo Molnar: "This contains a single fix that fixes a nohz tick stopping bug when mixed-poliocy SCHED_FIFO and SCHED_RR tasks are present on a runqueue" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: nohz/full, sched/rt: Fix missed tick-reenabling bug in sched_can_stop_tick()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fixes from Ingo Molnar: "This tree contains two fixes: new Intel CPU model numbers and an AMD/iommu uncore PMU driver fix" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/amd/iommu: Do not register a task ctx for uncore like PMUs perf/x86: Add model numbers for Kabylake CPUs
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull EFI fixes from Ingo Molnar: "This tree contains three fixes: a console spam fix, a file pattern fix and a sysfb_efi fix for a bug that triggered on older ThinkPads" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sysfb_efi: Fix valid BAR address range check x86/efi-bgrt: Switch all pr_err() to pr_notice() for invalid BGRT MAINTAINERS: Remove asterisk from EFI directory names
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds authored
Pull parisc fix from Helge Deller: "Patch from Dmitry V Levin to fix a kernel crash when a straced process calls the (invalid) syscall which is equal to value of __NR_Linux_syscalls" * 'parisc-4.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: fix a bug when syscall number of tracee is __NR_Linux_syscalls
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arcLinus Torvalds authored
Pull ARC fixes from Vineet Gupta: "Late in the cycle, but this has fixes for couple of issues: a PAE40 boot crash and Arnd spotting lack of barriers in BE io-accessors. The 3rd patch for enabling highmem in low physical mem ;-) honestly is more than a "fix" but its been in works for some time, seems to be stable in testing and enables 2 of our customers to go forward with 4.6 kernel. - Fix for PTE truncation in PAE40 builds - Fix for big endian IO accessors lacking IO barrier - Allow HIGHMEM to work with low physical addresses" * tag 'arc-4.6-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: support HIGHMEM even without PAE40 ARC: Fix PAE40 boot failures due to PTE truncation ARC: Add missing io barriers to io{read,write}{16,32}be()
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