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2018-06-02ipvs: register conntrack hooks for ftpJulian Anastasov
ip_vs_ftp requires conntrack modules for mangling of FTP command responses in passive mode. Make sure the conntrack hooks are registered when real servers use NAT method in FTP virtual service. The hooks will be registered while the service is present. Fixes: 0c66dc1ea3f0 ("netfilter: conntrack: register hooks in netns when needed by ruleset") Signed-off-by: Julian Anastasov <ja@ssi.bg> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-06-01clk: aspeed: Add 24MHz fixed clockLei YU
Add a 24MHz fixed clock. This clock will be used for certain devices, e.g. pwm. Signed-off-by: Lei YU <mine260309@gmail.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-01clk: imx7d: correct enet clock CCGR registersAnson Huang
Correct enet clock gates as below: CCGR6: IMX7D_ENET_AXI_ROOT_CLK (enet1 and enet2 bus clocks) CCGR112: IMX7D_ENET1_TIME_ROOT_CLK, IMX7D_ENET1_IPG_ROOT_CLK CCGR113: IMX7D_ENET2_TIME_ROOT_CLK, IMX7D_ENET2_IPG_ROOT_CLK Just rename unused IMX7D_ENETx_REF_ROOT_CLK for IMX7D_ENETx_IPG_ROOT_CLK instead of adding new clocks. Based on Andy Duan's patch from the NXP kernel tree. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-01dt-bindings: clock: Introduce QCOM Video clock bindingsAmit Nischal
Add device tree bindings for video clock controller for Qualcomm Technology Inc's SoCs. Signed-off-by: Amit Nischal <anischal@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-01xprtrdma: Add trace_xprtrdma_dma_map(mr)Chuck Lever
Matches trace_xprtrdma_dma_unmap(mr). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2018-06-01kvm: Make VM ioctl do valloc for some archsMarc Orr
The kvm struct has been bloating. For example, it's tens of kilo-bytes for x86, which turns out to be a large amount of memory to allocate contiguously via kzalloc. Thus, this patch does the following: 1. Uses architecture-specific routines to allocate the kvm struct via vzalloc for x86. 2. Switches arm to __KVM_HAVE_ARCH_VM_ALLOC so that it can use vzalloc when has_vhe() is true. Other architectures continue to default to kalloc, as they have a dependency on kalloc or have a small-enough struct kvm. Signed-off-by: Marc Orr <marcorr@google.com> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-01kvm: Change return type to vm_fault_tSouptick Joarder
Use new return type vm_fault_t for fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. commit 1c8f422059ae ("mm: change return type to vm_fault_t") Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-01Merge tag 'kvmarm-for-v4.18' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/ARM updates for 4.18 - Lazy context-switching of FPSIMD registers on arm64 - Allow virtual redistributors to be part of two or more MMIO ranges
2018-06-01ASoC: topology: Move skl-tplg-interface.h to uapiGuenter Roeck
skl-tplg-interface.h describes firmware format details for Skylake topology files. It is part of the ABI and should reside in the uapi directory. While moving the file, also replace the license boilerplate with the SPDX License Identifier. No functional change. Signed-off-by: Guenter Roeck <groeck@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-06-01ASoC: topology: Move v4 manifest header data structures to uapiGuenter Roeck
Topology manifest v4 is still part of the ABI. Move its data structures into the uapi header file. No functional change. Signed-off-by: Guenter Roeck <groeck@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-06-01mm: Remove return value of zap_vma_ptes()Leon Romanovsky
All callers of zap_vma_ptes() are not interested in the return value of that function, so let's simplify its interface and drop the return value. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-06-01lightnvm: pass flag on graceful teardown to targetsJavier González
If the namespace is unregistered before the LightNVM target is removed (e.g., on hot unplug) it is too late for the target to store any metadata on the device - any attempt to write to the device will fail. In this case, pass on a "gracefull teardown" flag to the target to let it know when this happens. In the case of pblk, we pad the open line (close all open chunks) to improve data retention. In the event of an ungraceful shutdown, avoid this part and just clean up. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-06-01Merge branch 'nvme-4.18' of git://git.infradead.org/nvme into for-4.18/blockJens Axboe
Pull NVMe changes from Christoph: "Below is another set of NVMe updates for 4.18. Besides the usual bug fixes this includes more feature completness in terms of AEN and log page handling on the target." * 'nvme-4.18' of git://git.infradead.org/nvme: nvme: use the changed namespaces list log to clear ns data changed AENs nvme: mark nvme_queue_scan static nvme: submit AEN event configuration on startup nvmet: mask pending AENs nvmet: add AEN configuration support nvmet: implement the changed namespaces log nvmet: split log page implementation nvmet: add a new nvmet_zero_sgl helper nvme.h: add AEN configuration symbols nvme.h: add the changed namespace list log nvme.h: untangle AEN notice definitions nvmet: fix error return code in nvmet_file_ns_enable() nvmet: fix a typo in nvmet_file_ns_enable() nvme-fabrics: allow internal passthrough command on deleting controllers nvme-loop: add support for multiple ports nvme-pci: simplify __nvme_submit_cmd nvme-pci: Rate limit the nvme timeout warnings nvme: allow duplicate controller if prior controller being deleted
2018-06-01block: unexport elevator_init/exitChristoph Hellwig
These are only used by the block core. Also move the declarations to block/blk.h. Reported-by: Damien Le Moal <Damien.LeMoal@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Tested-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-06-01mtd: nand: Pass mode information to nand_page_io_reqBoris Brezillon
The NAND sub-layers are likely to need the MTD_OPS_XXX mode information in order to decide if they should enable/disable ECC or how they should place the OOB bytes in the provided OOB buffer. Add a field to nand_page_io_req to pass this information. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Tested-by: Frieder Schrempf <frieder.schrempf@exceet.de> Reviewed-by: Frieder Schrempf <frieder.schrempf@exceet.de>
2018-06-01nvme.h: add AEN configuration symbolsHannes Reinecke
Signed-off-by: Hannes Reinecke <hare@suse.com> [hch: split from a larger patch] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2018-06-01ipvs: add ipv6 support to ftpJulian Anastasov
Add support for FTP commands with extended format (RFC 2428): - FTP EPRT: IPv4 and IPv6, active mode, similar to PORT - FTP EPSV: IPv4 and IPv6, passive mode, similar to PASV. EPSV response usually contains only port but we allow real server to provide different address We restrict control and data connection to be from same address family. Allow the "(" and ")" to be optional in PASV response. Also, add ipvsh argument to the pkt_in/pkt_out handlers to better access the payload after transport header. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-06-01netfilter: nft_fwd_netdev: allow to forward packets via neighbour layerPablo Neira Ayuso
This allows us to forward packets from the netdev family via neighbour layer, so you don't need an explicit link-layer destination when using this expression from rules. The ttl/hop_limit field is decremented. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-06-01netfilter: nf_tables: fix chain dependency validationPablo Neira Ayuso
The following ruleset: add table ip filter add chain ip filter input { type filter hook input priority 4; } add chain ip filter ap add rule ip filter input jump ap add rule ip filter ap masquerade results in a panic, because the masquerade extension should be rejected from the filter chain. The existing validation is missing a chain dependency check when the rule is added to the non-base chain. This patch fixes the problem by walking down the rules from the basechains, searching for either immediate or lookup expressions, then jumping to non-base chains and again walking down the rules to perform the expression validation, so we make sure the full ruleset graph is validated. This is done only once from the commit phase, in case of problem, we abort the transaction and perform fine grain validation for error reporting. This patch requires 003087911af2 ("netfilter: nfnetlink: allow commit to fail") to achieve this behaviour. This patch also adds a cleanup callback to nfnl batch interface to reset the validate state from the exit path. As a result of this patch, nf_tables_check_loops() doesn't use ->validate to check for loops, instead it just checks for immediate expressions. Reported-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-06-01netfilter: nf_tables: Add audit support to log statementPhil Sutter
This extends log statement to support the behaviour achieved with AUDIT target in iptables. Audit logging is enabled via a pseudo log level 8. In this case any other settings like log prefix are ignored since audit log format is fixed. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-06-01netfilter: nf_tables: add support for native socket matchingMáté Eckl
Now it can only match the transparent flag of an ip/ipv6 socket. Signed-off-by: Máté Eckl <ecklm94@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-05-31rtnetlink: Remove VLA usageKees Cook
In the quest to remove all stack VLA usage from the kernel[1], this allocates the maximum size expected for all possible types and adds sanity-checks at both registration and usage to make sure nothing gets out of sync. This matches the proposed VLA solution for nfnetlink[2]. The values chosen here were based on finding assignments for .maxtype and .slave_maxtype and manually counting the enums: slave_maxtype (max 33): IFLA_BRPORT_MAX 33 IFLA_BOND_SLAVE_MAX 9 maxtype (max 45): IFLA_BOND_MAX 28 IFLA_BR_MAX 45 __IFLA_CAIF_HSI_MAX 8 IFLA_CAIF_MAX 4 IFLA_CAN_MAX 16 IFLA_GENEVE_MAX 12 IFLA_GRE_MAX 25 IFLA_GTP_MAX 5 IFLA_HSR_MAX 7 IFLA_IPOIB_MAX 4 IFLA_IPTUN_MAX 21 IFLA_IPVLAN_MAX 3 IFLA_MACSEC_MAX 15 IFLA_MACVLAN_MAX 7 IFLA_PPP_MAX 2 __IFLA_RMNET_MAX 4 IFLA_VLAN_MAX 6 IFLA_VRF_MAX 2 IFLA_VTI_MAX 7 IFLA_VXLAN_MAX 28 VETH_INFO_MAX 2 VXCAN_INFO_MAX 2 This additionally changes maxtype and slave_maxtype fields to unsigned, since they're only ever using positive values. [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com [2] https://patchwork.kernel.org/patch/10439647/ Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-31compiler.h: enable builtin overflow checkers and add fallback codeRasmus Villemoes
This adds wrappers for the __builtin overflow checkers present in gcc 5.1+ as well as fallback implementations for earlier compilers. It's not that easy to implement the fully generic __builtin_X_overflow(T1 a, T2 b, T3 *d) in macros, so the fallback code assumes that T1, T2 and T3 are the same. We obviously don't want the wrappers to have different semantics depending on $GCC_VERSION, so we also insist on that even when using the builtins. There are a few problems with the 'a+b < a' idiom for checking for overflow: For signed types, it relies on undefined behaviour and is not actually complete (it doesn't check underflow; e.g. INT_MIN+INT_MIN == 0 isn't caught). Due to type promotion it is wrong for all types (signed and unsigned) narrower than int. Similarly, when a and b does not have the same type, there are subtle cases like u32 a; if (a + sizeof(foo) < a) return -EOVERFLOW; a += sizeof(foo); where the test is always false on 64 bit platforms. Add to that that it is not always possible to determine the types involved at a glance. The new overflow.h is somewhat bulky, but that's mostly a result of trying to be type-generic, complete (e.g. catching not only overflow but also signed underflow) and not relying on undefined behaviour. Linus is of course right [1] that for unsigned subtraction a-b, the right way to check for overflow (underflow) is "b > a" and not "__builtin_sub_overflow(a, b, &d)", but that's just one out of six cases covered here, and included mostly for completeness. So is it worth it? I think it is, if nothing else for the documentation value of seeing if (check_add_overflow(a, b, &d)) return -EGOAWAY; do_stuff_with(d); instead of the open-coded (and possibly wrong and/or incomplete and/or UBsan-tickling) if (a+b < a) return -EGOAWAY; do_stuff_with(a+b); While gcc does recognize the 'a+b < a' idiom for testing unsigned add overflow, it doesn't do nearly as good for unsigned multiplication (there's also no single well-established idiom). So using check_mul_overflow in kcalloc and friends may also make gcc generate slightly better code. [1] https://lkml.org/lkml/2015/11/2/658 Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Kees Cook <keescook@chromium.org>
2018-05-31net/mlx5: Add FPGA QP error eventIlan Tayari
The FPGA queue pair (QP) event fires whenever a QP on the FPGA transitions to the error state. At this stage, this event is unrecoverable, it may become recoverable in the future. Signed-off-by: Ilan Tayari <ilant@mellanox.com> Signed-off-by: Adi Nissim <adin@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-31net/mlx5: Add temperature warning event to logIlan Tayari
Temperature warning event is sent by FW to indicate high temperature as detected by one of the sensors on the board. Add handling of this event by writing the numbers of the alert sensors to the kernel log. Signed-off-by: Ilan Tayari <ilant@mellanox.com> Signed-off-by: Adi Nissim <adin@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-31rtnetlink: Add more well known protocol valuesDonald Sharp
FRRouting installs routes into the kernel associated with the originating protocol. Add these values to the well known values in rtnetlink.h. Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-31pnfs: Add barrier to prevent lgopen using LAYOUTGET during recallFred Isaman
Since the LAYOUTGET on OPEN can be sent without prior inode information, existing methods to prevent LAYOUTGET from being sent while processing CB_LAYOUTRECALL don't work. Track if a recall occurred while LAYOUTGET was being sent, and if so ignore the results. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Stop attempting LAYOUTGET on OPEN on failureFred Isaman
Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Add conditional encode/decode of LAYOUTGET within OPEN compoundFred Isaman
Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31pnfs: Store return value of decode_layoutget for later processingFred Isaman
This will be needed to seperate return value of OPEN and LAYOUTGET when they are combined into a single RPC. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFSv4: Fix sillyrename to return the delegation when appropriateTrond Myklebust
Ensure that we pass down the inode of the file being deleted so that we can return any delegation being held. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Move call to nfs4_state_protect() to nfs4_commit_setup()Anna Schumaker
Rather than doing this in the generic NFS client code. Let's put this with the other v4 stuff so it's all in one place. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31NFS: Move call to nfs4_state_protect_write() to nfs4_write_setup()Anna Schumaker
This doesn't really need to be in the generic NFS client code, and I think it makes more sense to keep the v4 code in one place. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31rculist: add list_for_each_entry_from_rcu()NeilBrown
list_for_each_entry_from_rcu() is an RCU version of list_for_each_entry_from(). It walks a linked list under rcu protection, from a given start point. It is similar to list_for_each_entry_continue_rcu() but starts *at* the given position rather than *after* it. Naturally, the start point must be known to be in the list. Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2018-05-31qed*: Add link change count value to ethtool statistics display.Sudarsana Reddy Kalluru
This patch adds driver changes for capturing the link change count in ethtool statistics display. Please consider applying this to "net-next". Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: Ariel Elior <ariel.elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-31tcp: minor optimization around tcp_hdr() usage in receive pathYafang Shao
This is additional to the commit ea1627c20c34 ("tcp: minor optimizations around tcp_hdr() usage"). At this point, skb->data is same with tcp_hdr() as tcp header has not been pulled yet. So use the less expensive one to get the tcp header. Remove the third parameter of tcp_rcv_established() and put it into the function body. Furthermore, the local variables are listed as a reverse christmas tree :) Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-31Merge branch 'for-next/perf' of ↵Catalin Marinas
git://git.kernel.org/pub/scm/linux/kernel/git/will/linux - perf/arm-cci: allow building as module - perf/arm-ccn: demote dev_warn() to dev_dbg() in event_init() - miscellaneous perf/arm cleanups * 'for-next/perf' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux: ARM: mcpm, perf/arm-cci: export mcpm_is_available drivers/bus: arm-cci: fix build warnings drivers/perf: Remove ARM_SPE_PMU explicit PERF_EVENTS dependency drivers/perf: arm-ccn: don't log to dmesg in event_init perf/arm-cci: Allow building as a module perf/arm-cci: Remove pointless PMU disabling perf/arm-cc*: Fix MODULE_LICENSE() tags arm_pmu: simplify arm_pmu::handle_irq perf/arm-cci: Remove unnecessary period adjustment perf: simplify getting .drvdata
2018-05-31nvme.h: add the changed namespace list logChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2018-05-31nvme.h: untangle AEN notice definitionsChristoph Hellwig
Stop including the event type in the definitions for the notice type. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2018-05-31arm64: Call ARCH_WORKAROUND_2 on transitions between EL0 and EL1Marc Zyngier
In order for the kernel to protect itself, let's call the SSBD mitigation implemented by the higher exception level (either hypervisor or firmware) on each transition between userspace and kernel. We must take the PSCI conduit into account in order to target the right exception level, hence the introduction of a runtime patching callback. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Julien Grall <julien.grall@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-05-31arm/arm64: smccc: Add SMCCC-specific return codesMarc Zyngier
We've so far used the PSCI return codes for SMCCC because they were extremely similar. But with the new ARM DEN 0070A specification, "NOT_REQUIRED" (-2) is clashing with PSCI's "PSCI_RET_INVALID_PARAMS". Let's bite the bullet and add SMCCC specific return codes. Users can be repainted as and when required. Acked-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-05-31dax: change bdev_dax_supported() to support boolean returnsDave Jiang
The function return values are confusing with the way the function is named. We expect a true or false return value but it actually returns 0/-errno. This makes the code very confusing. Changing the return values to return a bool where if DAX is supported then return true and no DAX support returns false. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2018-05-31fs: allow per-device dax status checking for filesystemsDarrick J. Wong
Change bdev_dax_supported so it takes a bdev parameter. This enables multi-device filesystems like xfs to check that a dax device can work for the particular filesystem. Once that's in place, actually fix all the parts of XFS where we need to be able to distinguish between datadev and rtdev. This patch fixes the problem where we screw up the dax support checking in xfs if the datadev and rtdev have different dax capabilities. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> [rez: Re-added __bdev_dax_supported() for !CONFIG_FS_DAX cases] Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com>
2018-05-31fs: Add aio iopriority supportAdam Manzanares
This is the per-I/O equivalent of the ioprio_set system call. When IOCB_FLAG_IOPRIO is set on the iocb aio_flags field, then we set the newly added kiocb ki_ioprio field to the value in the iocb aio_reqprio field. This patch depends on block: add ioprio_check_cap function. Signed-off-by: Adam Manzanares <adam.manzanares@wdc.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-05-31fs: Convert kiocb rw_hint from enum to u16Adam Manzanares
In order to avoid kiocb bloat for per command iopriority support, rw_hint is converted from enum to a u16. Added a guard around ki_hint assignment. Signed-off-by: Adam Manzanares <adam.manzanares@wdc.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-05-31block: add ioprio_check_cap functionAdam Manzanares
Aio per command iopriority support introduces a second interface between userland and the kernel capable of passing iopriority. The aio interface also needs the ability to verify that the submitting context has sufficient privileges to submit IOPRIO_RT commands. This patch creates the ioprio_check_cap function to be used by the ioprio_set system call and also by the aio interface. Signed-off-by: Adam Manzanares <adam.manzanares@wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-05-31usb: hub: Per-port setting to reduce TRSTRCY to 10 msNicolas Boichat
Currently, the USB hub core waits for 50 ms after enumerating the device. This was added to help "some high speed devices" to enumerate (b789696af8 "[PATCH] USB: relax usbcore reset timings"). On some devices, the time-to-active is important, so we provide a per-port option to reduce the time to what the USB specification requires: 10 ms. Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31usb: hub: Per-port setting to use old enumeration schemeNicolas Boichat
The "old" enumeration scheme is considerably faster (it takes ~244ms instead of ~356ms to get the descriptor). It is currently only possible to use the old scheme globally (/sys/module/usbcore/parameters/old_scheme_first), which is not desirable as the new scheme was introduced to increase compatibility with more devices. However, in our case, we care about time-to-active for a specific USB device (which we make the firmware for), on a specific port (that is pogo-pin based: not a standard USB port). This new sysfs option makes it possible to use the old scheme on a single port only. Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31Merge branch 'linus' into perf/core, to pick up fixesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-05-31Merge tag 'usb-serial-4.18-rc1' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for v4.18-rc1 Here are the USB-serial updates for 4.18-rc1, including: - support for hardware-assisted XON/XOFF output flow control for pl2303 - fix for a long-standing IXON/IXOFF mixup in ftdi_sio - blacklist of two apparently unused dwm-158 modem interfaces that confused some user space daemon (option) - add missing const to a tty helper currently used by USB serial only Included are also various clean ups. All have been in linux-next with no reported issues. Signed-off-by: Johan Hovold <johan@kernel.org>