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2019-05-16Merge tag 'armsoc-defconfig' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC defconfig updates from Olof Johansson: "Mostly the usual churn due to options being reordered or not added in the right locations. Some various enabling of new drivers, etc. ... i.e. the usual updates, nothing particularly sticks out" * tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (23 commits) arm64: defconfig: Update UFSHCD for Hi3660 soc ARM: multi_v7_defconfig: Enable support for STPMIC1 ARM: multi_v7_defconfig: Enable missing drivers for supported Chromebooks arm64: defconfig: enable mv-xor driver ARM: Enable Trusted Foundations for multiplatform ARM v7 ARM: tegra: Enable Trusted Foundations by default ARM: tegra: Update default configuration for v5.1-rc1 ARM: multi_v7_defconfig: Update for moved options ARM: multi_v7_defconfig: Update for dropped options ARM: shmobile: Enable USB [EO]HCI HCD PLATFORM support in shmobile_defconfig ARM: shmobile: Enable PHY_RCAR_GEN3_USB2 in shmobile_defconfig ARM: qcom_defconfig: add options for LG Nexus 5 phone arm64: defconfig: include the Agilex platform to the arm64 defconfig arm64: defconfig: Add PWM Fan support arm64: defconfig: Enable Tegra HDA support ARM: multi_v7_defconfig: Enable support for CFI NOR FLASH ARM: shmobile: defconfig: Enable support for CFI NOR FLASH ARM: shmobile: defconfig: Refresh for v5.1-rc1 ARM: multi_v7_defconfig: enable the Amlogic Meson ADC and eFuse drivers arm64: defconfig: enable fpga and service layer ...
2019-05-16uapi: Wire up the mount API syscalls on non-x86 arches [ver #2]David Howells
Wire up the mount API syscalls on non-x86 arches. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-05-16uapi, x86: Fix the syscall numbering of the mount API syscalls [ver #2]David Howells
Fix the syscall numbering of the mount API syscalls so that the numbers match between i386 and x86_64 and that they're in the common numbering scheme space. Fixes: a07b20004793 ("vfs: syscall: Add open_tree(2) to reference or clone a mount") Fixes: 2db154b3ea8e ("vfs: syscall: Add move_mount(2) to move mounts around") Fixes: 24dcb3d90a1f ("vfs: syscall: Add fsopen() to prepare for superblock creation") Fixes: ecdab150fddb ("vfs: syscall: Add fsconfig() for configuring and managing a context") Fixes: 93766fbd2696 ("vfs: syscall: Add fsmount() to create a mount for a superblock") Fixes: cf3cba4a429b ("vfs: syscall: Add fspick() to select a superblock for reconfiguration") Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-05-16uapi, fsopen: use square brackets around "fscontext" [ver #2]Christian Brauner
Make the name of the anon inode fd "[fscontext]" instead of "fscontext". This is minor but most core-kernel anon inode fds already carry square brackets around their name: [eventfd] [eventpoll] [fanotify] [io_uring] [pidfd] [signalfd] [timerfd] [userfaultfd] For the sake of consistency lets do the same for the fscontext anon inode fd that comes with the new mount api. Signed-off-by: Christian Brauner <christian@brauner.io> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-05-16Merge tag 'armsoc-drivers' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC-related driver updates from Olof Johansson: "Various driver updates for platforms and a couple of the small driver subsystems we merge through our tree: Among the larger pieces: - Power management improvements for TI am335x and am437x (RTC suspend/wake) - Misc new additions for Amlogic (socinfo updates) - ZynqMP FPGA manager - Nvidia improvements for reset/powergate handling - PMIC wrapper for Mediatek MT8516 - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits) soc: aspeed: fix Kconfig soc: add aspeed folder and misc drivers spi: zynqmp: Fix build break soc: imx: Add generic i.MX8 SoC driver MAINTAINERS: Update email for Qualcomm SoC maintainer memory: tegra: Fix a typos for "fdcdwr2" mc client Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+" memory: tegra: Replace readl-writel with mc_readl-mc_writel memory: tegra: Fix integer overflow on tick value calculation memory: tegra: Fix missed registers values latching ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30 optee: allow to work without static shared memory soc/tegra: pmc: Move powergate initialisation to probe soc/tegra: pmc: Remove reset sysfs entries on error soc/tegra: pmc: Fix reset sources and levels soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask fpga manager: Adding FPGA Manager support for Xilinx zynqmp dt-bindings: fpga: Add bindings for ZynqMP fpga driver firmware: xilinx: Add fpga API's ...
2019-05-16Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds
Pull ARM Device-tree updates from Olof Johansson: "Besides new bindings and additional descriptions of hardware blocks for various SoCs and boards, the main new contents here is: SoCs: - Intel Agilex (SoCFPGA) - NXP i.MX8MM (Quad Cortex-A53 with media/graphics focus) New boards: - Allwinner: + RerVision H3-DVK (H3) + Oceanic 5205 5inMFD (H6) + Beelink GS2 (H6) + Orange Pi 3 (H6) - Rockchip: + Orange Pi RK3399 + Nanopi NEO4 + Veyron-Mighty Chromebook variant - Amlogic: + SEI Robotics SEI510 - ST Micro: + stm32mp157a discovery1 + stm32mp157c discovery2 - NXP: + Eckelmann ci4x10 (i.MX6DL) + i.MX8MM EVK (i.MX8MM) + ZII i.MX7 RPU2 (i.MX7) + ZII SPB4 (VF610) + Zii Ultra (i.MX8M) + TQ TQMa7S (i.MX7Solo) + TQ TQMa7D (i.MX7Dual) + Kobo Aura (i.MX50) + Menlosystems M53 (i.MX53)j - Nvidia: + Jetson Nano (Tegra T210)" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (593 commits) arm64: dts: bitmain: Add UART pinctrl support for Sophon Edge arm64: dts: bitmain: Add pinctrl support for BM1880 SoC arm64: dts: bitmain: Add GPIO Line names for Sophon Edge board arm64: dts: bitmain: Add GPIO support for BM1880 SoC ARM: dts: gemini: Indent DIR-685 partition table dt-bindings: hwmon (pwm-fan) Remove dead "cooling-*-state" properties ARM: dts: qcom-apq8064: Set 'cxo_board' as ref clock of the DSI PHY arm64: dts: msm8998: thermal: Restrict thermal zone name length to under 20 arm64: dts: msm8998: thermal: Fix number of supported sensors arm64: dts: msm8998-mtp: thermal: Remove skin and battery thermal zones arm64: dts: exynos: Move fixed-clocks out of soc arm64: dts: exynos: Move pmu and timer nodes out of soc ARM: dts: s5pv210: Fix camera clock provider on Goni board ARM: dts: exynos: Properly override node to use MDMA0 on Universal C210 ARM: dts: exynos: Move fixed-clocks out of soc on Exynos3250 ARM: dts: exynos: Remove unneeded address/size cells from fixed-clock on Exynos3250 ARM: dts: exynos: Move pmu and timer nodes out of soc arm64: dts: rockchip: fix IO domain voltage setting of APIO5 on rockpro64 arm64: dts: db820c: Add sound card support arm64: dts: apq8096-db820c: Add HDMI display support ...
2019-05-16Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds
Pull ARM SoC platform updates from Olof Johansson: "SoC updates, mostly refactorings and cleanups of old legacy platforms. Major themes this release: - Conversion of ixp4xx to a modern platform (drivers, DT, bindings) - Moving some of the ep93xx headers around to get it closer to multiplatform enabled. - Cleanups of Davinci This also contains a few patches that were queued up as fixes before 5.1 but I didn't get sent in before release" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits) ARM: debug-ll: add default address for digicolor ARM: u300: regulator: add MODULE_LICENSE() ARM: ep93xx: move private headers out of mach/* ARM: ep93xx: move pinctrl interfaces into include/linux/soc ARM: ep93xx: keypad: stop using mach/platform.h ARM: ep93xx: move network platform data to separate header ARM: stm32: add AMBA support for stm32 family MAINTAINERS: update arch/arm/mach-davinci ARM: rockchip: add missing of_node_put in rockchip_smp_prepare_pmu ARM: dts: Add queue manager and NPE to the IXP4xx DTSI soc: ixp4xx: qmgr: Add DT probe code soc: ixp4xx: qmgr: Add DT bindings for IXP4xx qmgr soc: ixp4xx: npe: Add DT probe code soc: ixp4xx: Add DT bindings for IXP4xx NPE soc: ixp4xx: qmgr: Pass resources soc: ixp4xx: Remove unused functions soc: ixp4xx: Uninline several functions soc: ixp4xx: npe: Pass addresses as resources ARM: ixp4xx: Turn the QMGR into a platform device ARM: ixp4xx: Turn the NPE into a platform device ...
2019-05-16afs: Fix double inc of vnode->cb_breakDavid Howells
When __afs_break_callback() clears the CB_PROMISED flag, it increments vnode->cb_break to trigger a future refetch of the status and callback - however it also calls afs_clear_permits(), which also increments vnode->cb_break. Fix this by removing the increment from afs_clear_permits(). Whilst we're at it, fix the conditional call to afs_put_permits() as the function checks to see if the argument is NULL, so the check is redundant. Fixes: be080a6f43c4 ("afs: Overhaul permit caching"); Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Fix application of status and callback to be under same lockDavid Howells
When applying the status and callback in the response of an operation, apply them in the same critical section so that there's no race between checking the callback state and checking status-dependent state (such as the data version). Fix this by: (1) Allocating a joint {status,callback} record (afs_status_cb) before calling the RPC function for each vnode for which the RPC reply contains a status or a status plus a callback. A flag is set in the record to indicate if a callback was actually received. (2) These records are passed into the RPC functions to be filled in. The afs_decode_status() and yfs_decode_status() functions are removed and the cb_lock is no longer taken. (3) xdr_decode_AFSFetchStatus() and xdr_decode_YFSFetchStatus() no longer update the vnode. (4) xdr_decode_AFSCallBack() and xdr_decode_YFSCallBack() no longer update the vnode. (5) vnodes, expected data-version numbers and callback break counters (cb_break) no longer need to be passed to the reply delivery functions. Note that, for the moment, the file locking functions still need access to both the call and the vnode at the same time. (6) afs_vnode_commit_status() is now given the cb_break value and the expected data_version and the task of applying the status and the callback to the vnode are now done here. This is done under a single taking of vnode->cb_lock. (7) afs_pages_written_back() is now called by afs_store_data() rather than by the reply delivery function. afs_pages_written_back() has been moved to before the call point and is now given the first and last page numbers rather than a pointer to the call. (8) The indicator from YFS.RemoveFile2 as to whether the target file actually got removed (status.abort_code == VNOVNODE) rather than merely dropping a link is now checked in afs_unlink rather than in xdr_decode_YFSFetchStatus(). Supplementary fixes: (*) afs_cache_permit() now gets the caller_access mask from the afs_status_cb object rather than picking it out of the vnode's status record. afs_fetch_status() returns caller_access through its argument list for this purpose also. (*) afs_inode_init_from_status() now uses a write lock on cb_lock rather than a read lock and now sets the callback inside the same critical section. Fixes: c435ee34551e ("afs: Overhaul the callback handling") Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Fix lock-wait/callback-break double lockingDavid Howells
__afs_break_callback() holds vnode->lock around its call of afs_lock_may_be_available() - which also takes that lock. Fix this by not taking the lock in __afs_break_callback(). Also, there's no point checking the granted_locks and pending_locks queues; it's sufficient to check lock_state, so move that check out of afs_lock_may_be_available() into __afs_break_callback() to replace the queue checks. Fixes: e8d6c554126b ("AFS: implement file locking") Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Always get the reply timeDavid Howells
Always ask for the reply time from AF_RXRPC as it's used to calculate the callback expiry time and lock expiry times, so it's needed by most FS operations. Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Don't invalidate callback if AFS_VNODE_DIR_VALID not setDavid Howells
Don't invalidate the callback promise on a directory if the AFS_VNODE_DIR_VALID flag is not set (which indicates that the directory contents are invalid, due to edit failure, callback break, page reclaim). The directory will be reloaded next time the directory is accessed, so clearing the callback flag at this point may race with a reload of the directory and cancel it's recorded callback promise. Fixes: f3ddee8dc4e2 ("afs: Fix directory handling") Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Fix order-1 allocation in afs_do_lookup()David Howells
afs_do_lookup() will do an order-1 allocation to allocate status records if there are more than 39 vnodes to stat. Fix this by allocating an array of {status,callback} records for each vnode we want to examine using vmalloc() if larger than a page. This not only gets rid of the order-1 allocation, but makes it easier to grow beyond 50 records for YFS servers. It also allows us to move to {status,callback} tuples for other calls too and makes it easier to lock across the application of the status and the callback to the vnode. Fixes: 5cf9dd55a0ec ("afs: Prospectively look up extra files when doing a single lookup") Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Fix calculation of callback expiry timeDavid Howells
Fix the calculation of the expiry time of a callback promise, as obtained from operations like FS.FetchStatus and FS.FetchData. The time should be based on the timestamp of the first DATA packet in the reply and the calculation needs to turn the ktime_t timestamp into a time64_t. Fixes: c435ee34551e ("afs: Overhaul the callback handling") Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Get rid of afs_call::reply[]David Howells
Replace the afs_call::reply[] array with a bunch of typed members so that the compiler can use type-checking on them. It's also easier for the eye to see what's going on. Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Make dynamic root population wait uninterruptibly for proc_cells_lockDavid Howells
Make dynamic root population wait uninterruptibly for proc_cells_lock. Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Don't pass the vnode pointer through into the inline bulk status opDavid Howells
Don't pass the vnode pointer through into the inline bulk status op. We want to process the status records outside of it anyway. Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Make some RPC operations non-interruptibleDavid Howells
Make certain RPC operations non-interruptible, including: (*) Set attributes (*) Store data We don't want to get interrupted during a flush on close, flush on unlock, writeback or an inode update, leaving us in a state where we still need to do the writeback or update. (*) Extend lock (*) Release lock We don't want to get lock extension interrupted as the file locks on the server are time-limited. Interruption during lock release is less of an issue since the lock is time-limited, but it's better to complete the release to avoid a several-minute wait to recover it. *Setting* the lock isn't a problem if it's interrupted since we can just return to the user and tell them they were interrupted - at which point they can elect to retry. (*) Silly unlink We want to remove silly unlink files if we can, rather than leaving them for the salvager to clear up. Note that whilst these calls are no longer interruptible, they do have timeouts on them, so if the server stops responding the call will fail with something like ETIME or ECONNRESET. Without this, the following: kAFS: Unexpected error from FS.StoreData -512 appears in dmesg when a pending store data gets interrupted and some processes may just hang. Additionally, make the code that checks/updates the server record ignore failure due to interruption if the main call is uninterruptible and if the server has an address list. The next op will check it again since the expiration time on the old list has past. Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation") Reported-by: Jonathan Billings <jsbillings@jsbillings.org> Reported-by: Marc Dionne <marc.dionne@auristor.com> Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16rxrpc: Allow the kernel to mark a call as being non-interruptibleDavid Howells
Allow kernel services using AF_RXRPC to indicate that a call should be non-interruptible. This allows kafs to make things like lock-extension and writeback data storage calls non-interruptible. If this is set, signals will be ignored for operations on that call where possible - such as waiting to get a call channel on an rxrpc connection. It doesn't prevent UDP sendmsg from being interrupted, but that will be handled by packet retransmission. rxrpc_kernel_recv_data() isn't affected by this since that never waits, preferring instead to return -EAGAIN and leave the waiting to the caller. Userspace initiated calls can't be set to be uninterruptible at this time. Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Fix error propagation from server record check/updateDavid Howells
afs_check/update_server_record() should be setting fc->error rather than fc->ac.error as they're called from within the cursor iteration function. afs_fs_cursor::error is where the error code of the attempt to call the operation on multiple servers is integrated and is the final result, whereas afs_addr_cursor::error is used to hold the error from individual iterations of the call loop. (Note there's also an afs_vl_cursor which also wraps afs_addr_cursor for accessing VL servers rather than file servers). Fix this by setting fc->error in the afs_check/update_server_record() so that any error incurred whilst talking to the VL server correctly propagates to the final result. This results in: kAFS: Unexpected error from FS.StoreData -512 being seen, even though the store-data op is non-interruptible. The error is actually coming from the server record update getting interrupted. Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation") Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Fix the maximum lifespan of VL and probe callsDavid Howells
If an older AFS server doesn't support an operation, it may accept the call and then sit on it forever, happily responding to pings that make kafs think that the call is still alive. Fix this by setting the maximum lifespan of Volume Location service calls in particular and probe calls in general so that they don't run on endlessly if they're not supported. Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal Pull thermal soc updates from Eduardo Valentin: - thermal core has a new devm_* API for registering cooling devices. I took the entire series, that is why you see changes on drivers/hwmon in this pull (Guenter Roeck) - rockchip thermal driver gains support to PX30 SoC (Elaine Zhang) - the generic-adc thermal driver now considers the lookup table DT property as optional (Jean-Francois Dagenais) - Refactoring of tsens thermal driver (Amit Kucheria) - Cleanups on cpu cooling driver (Daniel Lezcano) - broadcom thermal driver dropped support to ACPI (Srinath Mannam) - tegra thermal driver gains support to OC hw throttle and GPU throtle (Wei Ni) - Fixes in several thermal drivers. * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: (59 commits) hwmon: (pwm-fan) Use devm_thermal_of_cooling_device_register hwmon: (npcm750-pwm-fan) Use devm_thermal_of_cooling_device_register hwmon: (mlxreg-fan) Use devm_thermal_of_cooling_device_register hwmon: (gpio-fan) Use devm_thermal_of_cooling_device_register hwmon: (aspeed-pwm-tacho) Use devm_thermal_of_cooling_device_register thermal: rcar_gen3_thermal: Fix to show correct trip points number thermal: rcar_thermal: update calculation formula for R-Car Gen3 SoCs thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power thermal: rockchip: Support the PX30 SoC in thermal driver dt-bindings: rockchip-thermal: Support the PX30 SoC compatible thermal: rockchip: fix up the tsadc pinctrl setting error thermal: broadcom: Remove ACPI support thermal: Fix build error of missing devm_ioremap_resource on UM thermal/drivers/cpu_cooling: Remove pointless field thermal/drivers/cpu_cooling: Add Software Package Data Exchange (SPDX) thermal/drivers/cpu_cooling: Fixup the header and copyright thermal/drivers/cpu_cooling: Remove pointless test in power2state() thermal: rcar_gen3_thermal: disable interrupt in .remove thermal: rcar_gen3_thermal: fix interrupt type thermal: Introduce devm_thermal_of_cooling_device_register ...
2019-05-16block/bio-integrity: use struct_size() in kmalloc()Jackie Liu
Use the new struct_size() helper to keep code simple. Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Jackie Liu <liuyun01@kylinos.cn> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-05-16rxrpc: Provide kernel interface to set max lifespan on a callDavid Howells
Provide an interface to set max lifespan on a call from inside of the kernel without having to call kernel_sendmsg(). Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16afs: Fix "kAFS: AFS vnode with undefined type 0"David Howells
Under some circumstances afs_select_fileserver() can return without setting an error in fc->error. The problem is in the no_more_servers segment where the accumulated errors from attempts to contact various servers are integrated into an afs_error-type variable 'e'. The resultant error code is, however, then abandoned. Fix this by getting the error out of e.error and putting it in 'error' so that the next part will store it into fc->error. Not doing this causes a report like the following: kAFS: AFS vnode with undefined type 0 kAFS: A=0 m=0 s=0 v=0 kAFS: vnode 20000025:1:1 because the code following the server selection loop then sees what it thinks is a successful invocation because fc.error is 0. However, it can't apply the status record because it's all zeros. The report is followed on the first instance with a trace looking something like: dump_stack+0x67/0x8e afs_inode_init_from_status.isra.2+0x21b/0x487 afs_fetch_status+0x119/0x1df afs_iget+0x130/0x295 afs_get_tree+0x31d/0x595 vfs_get_tree+0x1f/0xe8 fc_mount+0xe/0x36 afs_d_automount+0x328/0x3c3 follow_managed+0x109/0x20a lookup_fast+0x3bf/0x3f8 do_last+0xc3/0x6a4 path_openat+0x1af/0x236 do_filp_open+0x51/0xae ? _raw_spin_unlock+0x24/0x2d ? __alloc_fd+0x1a5/0x1b7 do_sys_open+0x13b/0x1e8 do_syscall_64+0x7d/0x1b3 entry_SYSCALL_64_after_hwframe+0x49/0xbe Fixes: 4584ae96ae30 ("afs: Fix missing net error handling") Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-17powerpc/mm: Drop VM_BUG_ON in get_region_id()Aneesh Kumar K.V
We call get_region_id() without validating the ea value. That means with a wrong ea value we hit the BUG as below. kernel BUG at arch/powerpc/include/asm/book3s/64/hash.h:129! Oops: Exception in kernel mode, sig: 5 [#1] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries CPU: 0 PID: 3937 Comm: access_tests Not tainted 5.1.0 .... NIP [c00000000007ba20] do_slb_fault+0x70/0x320 LR [c00000000000896c] data_access_slb_common+0x15c/0x1a0 Fix this by removing the VM_BUG_ON. All callers make sure the returned region id is valid and error out otherwise. Fixes: 0034d395f89d ("powerpc/mm/hash64: Map all the kernel regions in the same 0xc range") Reported-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-05-16Merge tag 'drm-next-2019-05-16' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "A bunch of fixes for the merge window closure, doesn't seem to be anything too major or serious in there. It does add TU117 turing modesetting to nouveau but it's just an enable for preexisting code. amdgpu: - gpu reset at load crash fix - ATPX hotplug fix for when dGPU is off - SR-IOV fixes radeon: - r5xx pll fixes i915: - GVT (MCHBAR, buffer alignment, misc warnings fixes) - Fixes for newly enabled semaphore code - Geminilake disable framebuffer compression - HSW edp fast modeset fix - IRQ vs RCU race fix nouveau: - Turing modesetting fixes - TU117 support msm: - SDM845 bringup fixes panfrost: - static checker fixes pl111: - spinlock init fix. bridge: - refresh rate register fix for adv7511" * tag 'drm-next-2019-05-16' of git://anongit.freedesktop.org/drm/drm: (36 commits) drm/msm: Upgrade gxpd checks to IS_ERR_OR_NULL drm/msm/dpu: Remove duplicate header drm/pl111: Initialize clock spinlock early drm/msm: correct attempted NULL pointer dereference in debugfs drm/msm: remove resv fields from msm_gem_object struct drm/nouveau: fix duplication of nv50_head_atom struct drm/nouveau/disp/dp: respect sink limits when selecting failsafe link configuration drm/nouveau/core: initial support for boards with TU117 chipset drm/nouveau/core: allow detected chipset to be overridden drm/nouveau/kms/gf119-gp10x: push HeadSetControlOutputResource() mthd when encoders change drm/nouveau/kms/nv50-: fix bug preventing non-vsync'd page flips drm/nouveau/kms/gv100-: fix spurious window immediate interlocks drm/bridge: adv7511: Fix low refresh rate selection drm/panfrost: Add missing _fini() calls in panfrost_device_fini() drm/panfrost: Only put sync_out if non-NULL drm/i915: Seal races between async GPU cancellation, retirement and signaling drm/i915: Fix fastset vs. pfit on/off on HSW EDP transcoder drm/i915/fbc: disable framebuffer compression on GeminiLake drm/amdgpu/psp: move psp version specific function pointers to early_init drm/radeon: prefer lower reference dividers ...
2019-05-16io_uring: use wait_event_interruptible for cq_wait conditional waitJackie Liu
The previous patch has ensured that io_cqring_events contain smp_rmb memory barriers, Now we can use wait_event_interruptible to keep the code simple. Signed-off-by: Jackie Liu <liuyun01@kylinos.cn> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-05-16io_uring: adjust smp_rmb inside io_cqring_eventsJackie Liu
Whenever smp_rmb is required to use io_cqring_events, keep smp_rmb inside the function io_cqring_events. Signed-off-by: Jackie Liu <liuyun01@kylinos.cn> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-05-16io_uring: fix infinite wait in khread_park() on io_finish_async()Roman Penyaev
This fixes couple of races which lead to infinite wait of park completion with the following backtraces: [20801.303319] Call Trace: [20801.303321] ? __schedule+0x284/0x650 [20801.303323] schedule+0x33/0xc0 [20801.303324] schedule_timeout+0x1bc/0x210 [20801.303326] ? schedule+0x3d/0xc0 [20801.303327] ? schedule_timeout+0x1bc/0x210 [20801.303329] ? preempt_count_add+0x79/0xb0 [20801.303330] wait_for_completion+0xa5/0x120 [20801.303331] ? wake_up_q+0x70/0x70 [20801.303333] kthread_park+0x48/0x80 [20801.303335] io_finish_async+0x2c/0x70 [20801.303336] io_ring_ctx_wait_and_kill+0x95/0x180 [20801.303338] io_uring_release+0x1c/0x20 [20801.303339] __fput+0xad/0x210 [20801.303341] task_work_run+0x8f/0xb0 [20801.303342] exit_to_usermode_loop+0xa0/0xb0 [20801.303343] do_syscall_64+0xe0/0x100 [20801.303349] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [20801.303380] Call Trace: [20801.303383] ? __schedule+0x284/0x650 [20801.303384] schedule+0x33/0xc0 [20801.303386] io_sq_thread+0x38a/0x410 [20801.303388] ? __switch_to_asm+0x40/0x70 [20801.303390] ? wait_woken+0x80/0x80 [20801.303392] ? _raw_spin_lock_irqsave+0x17/0x40 [20801.303394] ? io_submit_sqes+0x120/0x120 [20801.303395] kthread+0x112/0x130 [20801.303396] ? kthread_create_on_node+0x60/0x60 [20801.303398] ret_from_fork+0x35/0x40 o kthread_park() waits for park completion, so io_sq_thread() loop should check kthread_should_park() along with khread_should_stop(), otherwise if kthread_park() is called before prepare_to_wait() the following schedule() never returns: CPU#0 CPU#1 io_sq_thread_stop(): io_sq_thread(): while(!kthread_should_stop() && !ctx->sqo_stop) { ctx->sqo_stop = 1; kthread_park() prepare_to_wait(); if (kthread_should_stop() { } schedule(); <<< nobody checks park flag, <<< so schedule and never return o if the flag ctx->sqo_stop is observed by the io_sq_thread() loop it is quite possible, that kthread_should_park() check and the following kthread_parkme() is never called, because kthread_park() has not been yet called, but few moments later is is called and waits there for park completion, which never happens, because kthread has already exited: CPU#0 CPU#1 io_sq_thread_stop(): io_sq_thread(): ctx->sqo_stop = 1; while(!kthread_should_stop() && !ctx->sqo_stop) { <<< observe sqo_stop and exit the loop } if (kthread_should_park()) kthread_parkme(); <<< never called, since was <<< never parked kthread_park() <<< waits forever for park completion In the current patch we quit the loop by only kthread_should_park() check (kthread_park() is synchronous, so kthread_should_stop() is never observed), and we abandon ->sqo_stop flag, since it is racy. At the end of the io_sq_thread() we unconditionally call parmke(), since we've exited the loop by the park flag. Signed-off-by: Roman Penyaev <rpenyaev@suse.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: linux-block@vger.kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-05-16dm: fix a couple brace coding style issuesSheetal Singala
Signed-off-by: Sheetal Singala <2396sheetal@gmail.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2019-05-16dm crypt: print device name in integrity error messageMilan Broz
This message should better identify the DM device with the integrity failure. Signed-off-by: Milan Broz <gmazyland@gmail.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2019-05-16dm crypt: move detailed message into debug levelMilan Broz
The information about tag size should not be printed without debug info set. Also print device major:minor in the error message to identify the device instance. Also use rate limiting and debug level for info about used crypto API implementaton. This is important because during online reencryption the existing message saturates syslog (because we are moving hotzone across the whole device). Cc: stable@vger.kernel.org Signed-off-by: Milan Broz <gmazyland@gmail.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2019-05-16Merge branch 'nvme-5.2' of git://git.infradead.org/nvme into for-5.2/block-postJens Axboe
Pull NVMe fixes from Christoph * 'nvme-5.2' of git://git.infradead.org/nvme: nvme: validate cntlid during controller initialisation nvme: change locking for the per-subsystem controller list nvme: trace all async notice events nvme: fix typos in nvme status code values nvme-fabrics: remove unused argument nvme-multipath: avoid crash on invalid subsystem cntlid enumeration nvme-fc: use separate work queue to avoid warning nvme-rdma: remove redundant reference between ib_device and tagset nvme-pci: mark expected switch fall-through nvme-pci: add known admin effects to augument admin effects log page nvme-pci: init shadow doorbell after each reset
2019-05-16dm ioctl: fix hang in early create error conditionHelen Koike
The dm_early_create() function (which deals with "dm-mod.create=" kernel command line option) calls dm_hash_insert() who gets an extra reference to the md object. In case of failure, this reference wasn't being released, causing dm_destroy() to hang, thus hanging the whole boot process. Fix this by calling __hash_remove() in the error path. Fixes: 6bbc923dfcf57d ("dm: add support to directly boot to a mapped device") Cc: stable@vger.kernel.org Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2019-05-16afs: Fix cell DNS lookupDavid Howells
Currently, once configured, AFS cells are looked up in the DNS at regular intervals - which is a waste of resources if those cells aren't being used. It also leads to a problem where cells preloaded, but not configured, before the network is brought up end up effectively statically configured with no VL servers and are unable to get any. Fix this by not doing the DNS lookup until the first time a cell is touched. It is waited for if we don't have any cached records yet, otherwise the DNS lookup to maintain the record is done in the background. This has the downside that the first time you touch a cell, you now have to wait for the upcall to do the required DNS lookups rather than them already being cached. Further, the record is not replaced if the old record has at least one server in it and the new record doesn't have any. Fixes: 0a5143f2f89c ("afs: Implement VL server rotation") Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16nds32: Fix vDSO clock_getres()Vincenzo Frascino
clock_getres in the vDSO library has to preserve the same behaviour of posix_get_hrtimer_res(). In particular, posix_get_hrtimer_res() does: sec = 0; ns = hrtimer_resolution; and hrtimer_resolution depends on the enablement of the high resolution timers that can happen either at compile or at run time. Fix the nds32 vdso implementation of clock_getres keeping a copy of hrtimer_resolution in vdso data and using that directly. Cc: Greentime Hu <green.hu@gmail.com> Cc: Vincent Chen <deanbo422@gmail.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
2019-05-16x86/speculation/mds: Improve CPU buffer clear documentationAndy Lutomirski
On x86_64, all returns to usermode go through prepare_exit_to_usermode(), with the sole exception of do_nmi(). This even includes machine checks -- this was added several years ago to support MCE recovery. Update the documentation. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@suse.de> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jon Masters <jcm@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Fixes: 04dcbdb80578 ("x86/speculation/mds: Clear CPU buffers on exit to user") Link: http://lkml.kernel.org/r/999fa9e126ba6a48e9d214d2f18dbde5c62ac55c.1557865329.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-05-16x86/speculation/mds: Revert CPU buffer clear on double fault exitAndy Lutomirski
The double fault ESPFIX path doesn't return to user mode at all -- it returns back to the kernel by simulating a #GP fault. prepare_exit_to_usermode() will run on the way out of general_protection before running user code. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@suse.de> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jon Masters <jcm@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Fixes: 04dcbdb80578 ("x86/speculation/mds: Clear CPU buffers on exit to user") Link: http://lkml.kernel.org/r/ac97612445c0a44ee10374f6ea79c222fe22a5c4.1557865329.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-05-16Merge branch 'linus' into x86/urgent, to pick up dependent changesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-05-16MAINTAINERS: update nds32 git repo pathGreentime Hu
We use git.kernel.org to put nds32's latest code instead of github. Signed-off-by: Greentime Hu <greentime@andestech.com>
2019-05-16nds32: don't export low-level cache flushing routinesChristoph Hellwig
None of these is used by modules. Nor should they as we have better highlevel primitives. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
2019-05-15Merge branch 'fixes' into arm/socOlof Johansson
Merge in a few pending fixes from pre-5.1 that didn't get sent in: MAINTAINERS: update arch/arm/mach-davinci ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect ARM: dts: imx6q-logicpd: Reduce inrush current on USBH1 ARM: dts: imx6q-logicpd: Reduce inrush current on start ARM: dts: imx: Fix the AR803X phy-mode ARM: dts: sun8i: a33: Reintroduce default pinctrl muxing arm64: dts: allwinner: a64: Rename hpvcc-supply to cpvdd-supply ARM: sunxi: fix a leaked reference by adding missing of_node_put ARM: sunxi: fix a leaked reference by adding missing of_node_put Signed-off-by: Olof Johansson <olof@lixom.net>
2019-05-15cifs: add support for SEEK_DATA and SEEK_HOLERonnie Sahlberg
Add llseek op for SEEK_DATA and SEEK_HOLE. Improves xfstests/285,286,436,445,448 and 490 Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2019-05-15Fixed https://bugzilla.kernel.org/show_bug.cgi?id=202935 allow write on the ↵Kovtunenko Oleksandr
same file Copychunk allows source and target to be on the same file. For details on restrictions see MS-SMB2 3.3.5.15.6 Signed-off-by: Kovtunenko Oleksandr <alexander198961@gmail.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2019-05-15cifs: Allocate memory for all iovs in smb2_ioctlLong Li
An IOCTL uses up to 2 iovs. The 1st iov is the command itself, the 2nd iov is optional data for that command. The 1st iov is always allocated on the heap but the 2nd iov may point to a variable on the stack. This will trigger an error when passing the 2nd iov for RDMA I/O. Fix this by allocating a buffer for the 2nd iov. Signed-off-by: Long Li <longli@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com> Reviewed-by: Ronnie sahlberg <lsahlber@redhat.com>
2019-05-15cifs: Don't match port on SMBDirect transportLong Li
SMBDirect manages its own ports in the transport layer, there is no need to check the port to find a connection. Signed-off-by: Long Li <longli@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Ronnie sahlberg <lsahlber@redhat.com>
2019-05-15Merge tag 'libnvdimm-fixes-5.2-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "Just a small collection of fixes this time around. The new virtio-pmem driver is nearly ready, but some last minute device-mapper acks and virtio questions made it prudent to await v5.3. Other major topics that were brewing on the linux-nvdimm mailing list like sub-section hotplug, and other devm_memremap_pages() reworks will go upstream through Andrew's tree. Summary: - Fix a long standing namespace label corruption scenario when re-provisioning capacity for a namespace. - Restore the ability of the dax_pmem module to be built-in. - Harden the build for the 'nfit_test' unit test modules so that the userspace test harness can ensure all required test modules are available" * tag 'libnvdimm-fixes-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: drivers/dax: Allow to include DEV_DAX_PMEM as builtin libnvdimm/namespace: Fix label tracking error tools/testing/nvdimm: add watermarks for dax_pmem* modules dax/pmem: Fix whitespace in dax_pmem
2019-05-15Merge tag 'for-v5.2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset updates from Sebastian Reichel: "Core: - Add over-current health state - Add standard, adaptive and custom charge types - Add new properties for start/end charge threshold New Drivers / Hardware: - UCS1002 Programmable USB Port Power Controller - Ingenic JZ47xx Battery Fuel Gauge - AXP20x USB Power: Add AXP813 support - AT91 poweroff: Add SAM9X60 support - OLPC battery: Add XO-1.5 and XO-1.75 support Misc Changes: - syscon-reboot: support mask property - AXP288 fuel gauge: Blacklist ACEPC T8/T11. Looks like some vendor thought it's a good idea to build a desktop system with a fuel gauge, that slowly "discharges"... - cpcap-battery: Fix calculation errors - misc fixes" * tag 'for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (54 commits) power: supply: olpc_battery: force the le/be casts power: supply: ucs1002: Fix build error without CONFIG_REGULATOR power: supply: ucs1002: Fix wrong return value checking power: supply: Add driver for Microchip UCS1002 dt-bindings: power: supply: Add bindings for Microchip UCS1002 power: supply: core: Add POWER_SUPPLY_HEALTH_OVERCURRENT constant power: supply: core: fix clang -Wunsequenced power: supply: core: Add missing documentation for CHARGE_CONTROL_* properties power: supply: core: Add CHARGE_CONTROL_{START_THRESHOLD,END_THRESHOLD} properties power: supply: core: Add Standard, Adaptive, and Custom charge types power: supply: axp288_fuel_gauge: Add ACEPC T8 and T11 mini PCs to the blacklist power: supply: bq27xxx_battery: Notify also about status changes power: supply: olpc_battery: Have the framework register sysfs files for us power: supply: olpc_battery: Add OLPC XO 1.75 support power: supply: olpc_battery: Avoid using platform_info power: supply: olpc_battery: Use devm_power_supply_register() power: supply: olpc_battery: Move priv data to a struct power: supply: olpc_battery: Use DT to get battery version x86/platform/olpc: Use a correct version when making up a battery node x86/platform/olpc: Trivial code move in DT fixup ...
2019-05-15Merge tag 'for-linus-5.2b-rc1-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - some minor cleanups - two small corrections for Xen on ARM - two fixes for Xen PVH guest support - a patch for a new command line option to tune virtual timer handling * tag 'for-linus-5.2b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/arm: Use p2m entry with lock protection xen/arm: Free p2m entry if fail to add it to RB tree xen/pvh: correctly setup the PV EFI interface for dom0 xen/pvh: set xen_domain_type to HVM in xen_pvh_init xenbus: drop useless LIST_HEAD in xenbus_write_watch() and xenbus_file_write() xen-netfront: mark expected switch fall-through xen: xen-pciback: fix warning Using plain integer as NULL pointer x86/xen: Add "xen_timer_slop" command line option
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