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2016-09-14dm rq: add DM_MAPIO_DELAY_REQUEUE to delay requeue of blk-mq requestsMike Snitzer
Otherwise blk-mq will immediately dispatch requests that are requeued via a BLK_MQ_RQ_QUEUE_BUSY return from blk_mq_ops .queue_rq. Delayed requeue is implemented using blk_mq_delay_kick_requeue_list() with a delay of 5 secs. In the context of DM multipath (all paths down) it doesn't make any sense to requeue more quickly. Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-09-14dm: convert wait loops to use autoremove_wake_function()Bart Van Assche
Use autoremove_wake_function() instead of default_wake_function() to make the dm wait loops more similar to other wait loops in the kernel. This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-09-14dm: use signal_pending_state() in dm_wait_for_completion()Bart Van Assche
Use signal_pending_state() instead of open-coding it. This patch does not change any functionality but makes it possible to pass TASK_KILLABLE as the second argument of dm_wait_for_completion(). See also commit 16882c1e962b ("sched: fix TASK_WAKEKILL vs SIGKILL race"). Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>. Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-09-14dm: rename task state function argumentsBart Van Assche
Rename 'interruptible' into 'task_state' to make it clear that this argument is a task state instead of a boolean. Also, change type from int to long. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-09-14dm: add two lockdep_assert_held() statementsBart Van Assche
Document the locking assumptions for the __bind() and __dm_suspend() functions. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-09-14dm rq: simplify dm_old_stop_queue()Bart Van Assche
This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-09-14dm mpath: check if path's request_queue is dying in activate_path()Mike Snitzer
If pg_init_retries is set and a request is queued against a multipath device with all underlying block device request_queues in the "dying" state then an infinite loop is triggered because activate_path() never succeeds and hence never calls pg_init_done(). This change avoids that device removal triggers an infinite loop by failing the activate_path() which causes the "dying" path to be failed. Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2016-09-14dm rq: take request_queue lock while clearing QUEUE_FLAG_STOPPEDMike Snitzer
Every call of queue_flag_clear_unlocked() after block device initialization has finished is wrong if blk_cleanup_queue() can be called concurrently. Convert queue_flag_clear_unlocked() into queue_flag_clear() and protect it by the block layer queue lock. Also, factor out dm_mq_start_queue(). Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2016-09-14dm rq: factor out dm_mq_stop_queue()Bart Van Assche
Also, check that the blk-mq request_queue isn't already stopped. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-09-14dm: mark request_queue dead before destroying the DM deviceBart Van Assche
This avoids that new requests are queued while __dm_destroy() is in progress. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2016-09-14dm: return correct error code in dm_resume()'s retry loopMinfei Huang
dm_resume() will return success (0) rather than -EINVAL if !dm_suspended_md() upon retry within dm_resume(). Reset the error code at the start of dm_resume()'s retry loop. Also, remove a useless assignment at the end of dm_resume(). Fixes: ffcc393641 ("dm: enhance internal suspend and resume interface") Cc: stable@vger.kernel.org # 3.19+ Signed-off-by: Minfei Huang <mnghuan@gmail.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-09-14block, dm-crypt, btrfs: Introduce bio_flags()Bart Van Assche
Introduce the bio_flags() macro. Ensure that the second argument of bio_set_op_attrs() only contains flags and no operation. This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Mike Christie <mchristi@redhat.com> Cc: Chris Mason <clm@fb.com> (maintainer:BTRFS FILE SYSTEM) Cc: Josef Bacik <jbacik@fb.com> (maintainer:BTRFS FILE SYSTEM) Cc: Mike Snitzer <snitzer@redhat.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Damien Le Moal <damien.lemoal@hgst.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-09-08nbd: allow block mq to deal with timeoutsJosef Bacik
Instead of rolling our own timer, just utilize the blk mq req timeout and do the disconnect if any of our commands timeout. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-09-08nbd: use flags instead of boolJosef Bacik
In preparation for some future changes, change a few of the state bools over to normal bits to set/clear properly. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-09-08nbd: don't shutdown sock with irq's disabledJosef Bacik
We hit a warning when shutting down the nbd connection because we have irq's disabled. We don't really need to do the shutdown under the lock, just clear the nbd->sock. So do the shutdown outside of the irq. This gets rid of the warning. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-09-08nbd: convert to blkmqJosef Bacik
This moves NBD over to using blkmq, which allows us to get rid of the NBD wide queue lock and the async submit kthread. We will start with 1 hw queue for now, but I plan to add multiple tcp connection support in the future and we'll fix how we set the hwqueue's. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-29mtip32xx: mark symbols static where possibleBaoyou Xie
We get 1 warning when biuld kernel with W=1: drivers/block/mtip32xx/mtip32xx.c:3689:6: warning: no previous prototype for 'mtip_block_release' [-Wmissing-prototypes] In fact, this function is only used in the file in which it is declared and don't need a declaration, but can be made static. so this patch marks it 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-28Merge tag 'drm-fixes-for-4.8-rc4' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "A bunch of fixes covering i915, amdgpu, one tegra and some core DRM ones. Nothing too strange at this point" * tag 'drm-fixes-for-4.8-rc4' of git://people.freedesktop.org/~airlied/linux: (21 commits) drm/atomic: Don't potentially reset color_mgmt_changed on successive property updates. drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATION drm/amdgpu: skip TV/CV in display parsing drm/amdgpu: avoid a possible array overflow drm/amdgpu: fix lru size grouping v2 drm/tegra: dsi: Enhance runtime power management drm/i915: Fix botched merge that downgrades CSR versions. drm/i915/skl: Ensure pipes with changed wms get added to the state drm/i915/gen9: Only copy WM results for changed pipes to skl_hw drm/i915/skl: Add support for the SAGV, fix underrun hangs drm/i915/gen6+: Interpret mailbox error flags drm/i915: Reattach comment, complete type specification drm/i915: Unconditionally flush any chipset buffers before execbuf drm/i915/gen9: Drop invalid WARN() during data rate calculation drm/i915/gen9: Initialize intel_state->active_crtcs during WM sanitization (v2) drm: Reject page_flip for !DRIVER_MODESET drm/amdgpu: fix timeout value check in amd_sched_job_recovery drm/amdgpu: fix sdma_v2_4_ring_test_ib drm/amdgpu: fix amdgpu_move_blit on 32bit systems drm/radeon: fix radeon_move_blit on 32bit systems ...
2016-08-29drm/atomic: Don't potentially reset color_mgmt_changed on successive ↵Mario Kleiner
property updates. Due to assigning the 'replaced' value instead of or'ing it, if drm_atomic_crtc_set_property() gets called multiple times, the last call will define the color_mgmt_changed flag, so a non-updating call to a property can reset the flag and prevent actual hw state updates required by preceding property updates. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: <stable@vger.kernel.org> # v4.6+ Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-08-28Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "This lot provides: - plug a hotplug race in the new affinity infrastructure - a fix for the trigger type of chained interrupts - plug a potential memory leak in the core code - a few fixes for ARM and MIPS GICs" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mips-gic: Implement activate op for device domain irqchip/mips-gic: Cleanup chip and handler setup genirq/affinity: Use get/put_online_cpus around cpumask operations genirq: Fix potential memleak when failing to get irq pm irqchip/gicv3-its: Disable the ITS before initializing it irqchip/gicv3: Remove disabling redistributor and group1 non-secure interrupts irqchip/gic: Allow self-SGIs for SMP on UP configurations genirq: Correctly configure the trigger on chained interrupts
2016-08-28Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "A few updates for timers & co: - prevent a livelock in the timekeeping code when debugging is enabled - prevent out of bounds access in the timekeeping debug code - various fixes in clocksource drivers - a new maintainers entry" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function drivers/clocksource/pistachio: Fix memory corruption in init clocksource/drivers/timer-atmel-pit: Enable mck clock clocksource/drivers/pxa: Fix include files for compilation MAINTAINERS: Add ARM ARCHITECTED TIMER entry timekeeping: Cap array access in timekeeping_debug timekeeping: Avoid taking lock in NMI path with CONFIG_DEBUG_TIMEKEEPING
2016-08-26Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge fixes from Andrew Morton: "11 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm: silently skip readahead for DAX inodes dax: fix device-dax region base fs/seq_file: fix out-of-bounds read mm: memcontrol: avoid unused function warning mm: clarify COMPACTION Kconfig text treewide: replace config_enabled() with IS_ENABLED() (2nd round) printk: fix parsing of "brl=" option soft_dirty: fix soft_dirty during THP split sysctl: handle error writing UINT_MAX to u32 fields get_maintainer: quiet noisy implicit -f vcs_file_exists checking byteswap: don't use __builtin_bswap*() with sparse
2016-08-26Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "Round one of 4.8 rc fixes. This should be the bulk of the -rc fixes for 4.8. I only have a few things that are still outstanding (two ipoib bugs for which the solution is not yet fully known, and a few queued items that came in after my last push and I didn't want to delay this pull request for late comers again). Even though the patch count is kind of high, everything is minor fixes so the overall churn is pretty low. Summary: - minor fixes to cxgb4 - minor fixes to mlx4 - one minor fix each to core, rxe, isert, srpt, mlx5, ocrdma, and usnic - six or so fixes to i40iw fixes - the rest are hfi1 fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (34 commits) i40iw: Send last streaming mode message for loopback connections IB/srpt: Update sport->port_guid with each port refresh RDMA/ocrdma: Fix the max_sge reported from FW i40iw: Avoid writing to freed memory i40iw: Fix double free of allocated_buffer IB/mlx5: Remove superfluous include of io-mapping.h i40iw: Do not set self-referencing pointer to NULL after kfree i40iw: Add missing NULL check for MPA private data iw_cxgb4: Fix cxgb4 arm CQ logic w/IB_CQ_REPORT_MISSED_EVENTS i40iw: Add missing check for interface already open i40iw: Protect req_resource_num update i40iw: Change mem_resources pointer to a u8 IB/core: Use memdup_user() rather than duplicating its implementation IB/qib: Use memdup_user() rather than duplicating its implementation iw_cxgb4: use the MPA initiator's IRD if < our ORD iw_cxgb4: limit IRD/ORD advertised to ULP by device max. IB/hfi1: Fix mm_struct use after free IB/rdmvat: Fix double vfree() in rvt_create_qp() error path IB/hfi1: Improve J_KEY generation IB/hfi1: Return invalid field for non-QSFP CableInfo queries ...
2016-08-26Merge tag 'dm-4.8-fixes-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: - another stable fix for DM flakey (that tweaks the previous fix that didn't factor in expected 'drop_writes' behavior for read IO). - a dm-log bio operation flags fix for the broader block changes that were merged during the 4.8 merge window. * tag 'dm-4.8-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm log: fix unitialized bio operation flags dm flakey: fix reads to be issued if drop_writes configured
2016-08-26Merge tag 'iommu-fixes-v4.8-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU fixes from Joerg Roedel: "Fixes from Will Deacon: - fix a couple of thinkos in the CMDQ error handling and short-descriptor page table code that have been there since day one - disable stalling faults, since they may result in hardware deadlock - fix an accidental BUG() when passing disable_bypass=1 on the cmdline" * tag 'iommu-fixes-v4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/arm-smmu: Don't BUG() if we find aborting STEs with disable_bypass iommu/arm-smmu: Disable stalling faults for all endpoints iommu/arm-smmu: Fix CMDQ error handling iommu/io-pgtable-arm-v7s: Fix attributes when splitting blocks
2016-08-26Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "Here's a set of block fixes for the current 4.8-rc release. This contains: - a fix for a secure erase regression, from Adrian. - a fix for an mmc use-after-free bug regression, also from Adrian. - potential zero pointer deference in bdev freezing, from Andrey. - a race fix for blk_set_queue_dying() from Bart. - a set of xen blkfront fixes from Bob Liu. - three small fixes for bcache, from Eric and Kent. - a fix for a potential invalid NVMe state transition, from Gabriel. - blk-mq CPU offline fix, preventing us from issuing and completing a request on the wrong queue. From me. - revert two previous floppy changes, since they caused a user visibile regression. A better fix is in the works. - ensure that we don't send down bios that have more than 256 elements in them. Fixes a crash with bcache, for example. From Ming. - a fix for deferencing an error pointer with cgroup writeback. Fixes a regression. From Vegard" * 'for-linus' of git://git.kernel.dk/linux-block: mmc: fix use-after-free of struct request Revert "floppy: refactor open() flags handling" Revert "floppy: fix open(O_ACCMODE) for ioctl-only open" fs/block_dev: fix potential NULL ptr deref in freeze_bdev() blk-mq: improve warning for running a queue on the wrong CPU blk-mq: don't overwrite rq->mq_ctx block: make sure a big bio is split into at most 256 bvecs nvme: Fix nvme_get/set_features() with a NULL result pointer bdev: fix NULL pointer dereference xen-blkfront: free resources if xlvbd_alloc_gendisk fails xen-blkfront: introduce blkif_set_queue_limits() xen-blkfront: fix places not updated after introducing 64KB page granularity bcache: pr_err: more meaningful error message when nr_stripes is invalid bcache: RESERVE_PRIO is too small by one when prio_buckets() is a power of two. bcache: register_bcache(): call blkdev_put() when cache_alloc() fails block: Fix race triggered by blk_set_queue_dying() block: Fix secure erase nvme: Prevent controller state invalid transition
2016-08-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem fixes from Dmitry Torokhov: "Simply small driver fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: ads7846 - remove redundant regulator_disable call Input: synaptics-rmi4 - fix register descriptor subpacket map construction Input: tegra-kbc - fix inverted reset logic Input: silead - use devm_gpiod_get Input: i8042 - set up shared ps2_cmd_mutex for AUX ports
2016-08-26Merge tag 'pci-v4.8-fixes-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: "Resource management: - Update "pci=resource_alignment" documentation (Mathias Koehrer) MSI: - Use positive flags in pci_alloc_irq_vectors() (Christoph Hellwig) - Call pci_intx() when using legacy interrupts in pci_alloc_irq_vectors() (Christoph Hellwig) Intel VMD host bridge driver: - Fix infinite loop executing irq's (Keith Busch)" * tag 'pci-v4.8-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: x86/PCI: VMD: Fix infinite loop executing irq's PCI: Call pci_intx() when using legacy interrupts in pci_alloc_irq_vectors() PCI: Use positive flags in pci_alloc_irq_vectors() PCI: Update "pci=resource_alignment" documentation
2016-08-26dax: fix device-dax region baseDan Williams
The data offset for a dax region needs to account for a reservation in the resource range. Otherwise, device-dax is allowing mappings directly into the memmap or device-info-block area with crash signatures like the following: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: get_zone_device_page+0x11/0x30 Call Trace: follow_devmap_pmd+0x298/0x2c0 follow_page_mask+0x275/0x530 __get_user_pages+0xe3/0x750 __gfn_to_pfn_memslot+0x1b2/0x450 [kvm] tdp_page_fault+0x130/0x280 [kvm] kvm_mmu_page_fault+0x5f/0xf0 [kvm] handle_ept_violation+0x94/0x180 [kvm_intel] vmx_handle_exit+0x1d3/0x1440 [kvm_intel] kvm_arch_vcpu_ioctl_run+0x81d/0x16a0 [kvm] kvm_vcpu_ioctl+0x33c/0x620 [kvm] do_vfs_ioctl+0xa2/0x5d0 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x1a/0xa4 Fixes: ab68f2622136 ("/dev/dax, pmem: direct access to persistent memory") Link: http://lkml.kernel.org/r/147205536732.1606.8994275381938837346.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reported-by: Abhilash Kumar Mulumudi <m.abhilash-kumar@hpe.com> Reported-by: Toshi Kani <toshi.kani@hpe.com> Tested-by: Toshi Kani <toshi.kani@hpe.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-26clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe ↵Chen-Yu Tsai
function The bootloader (U-boot) sometimes uses this timer for various delays. It uses it as a ongoing counter, and does comparisons on the current counter value. The timer counter is never stopped. In some cases when the user interacts with the bootloader, or lets it idle for some time before loading Linux, the timer may expire, and an interrupt will be pending. This results in an unexpected interrupt when the timer interrupt is enabled by the kernel, at which point the event_handler isn't set yet. This results in a NULL pointer dereference exception, panic, and no way to reboot. Clear any pending interrupts after we stop the timer in the probe function to avoid this. Cc: stable@vger.kernel.org Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-08-26drivers/clocksource/pistachio: Fix memory corruption in initMarcin Nowakowski
Driver init code incorrectly uses the block base address and as a result clears clocksource structure's fields instead of the hardware registers. Commit 09a998201649 ("timekeeping: Lift clocksource cacheline restriction") has changed the offsets within pistachio_clocksource structure and what has previously gone unnoticed now leads to a kernel panic during boot. Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-08-26clocksource/drivers/timer-atmel-pit: Enable mck clockAlexandre Belloni
mck is needed to get the PIT working. Explicitly prepare_enable it instead of assuming it is enabled. This solves an issue where the system is freezing when the ETM/ETB drivers are enabled. Reported-by: Olivier Schonken <olivier.schonken@gmail.com> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-08-25mmc: fix use-after-free of struct requestAdrian Hunter
We call mmc_req_is_special() after having processed a request, but it could be freed after that. Check that ahead of time, and use the cached value. Reported-by: Hans de Goede <hdegoede@redhat.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Fixes: c2df40dfb8c0 ("drivers: use req op accessor") Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-26Merge tag 'drm-intel-fixes-2016-08-25' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-fixes i915 fixes queue. * tag 'drm-intel-fixes-2016-08-25' of git://anongit.freedesktop.org/drm-intel: drm/i915: Fix botched merge that downgrades CSR versions. drm/i915/skl: Ensure pipes with changed wms get added to the state drm/i915/gen9: Only copy WM results for changed pipes to skl_hw drm/i915/skl: Add support for the SAGV, fix underrun hangs drm/i915/gen6+: Interpret mailbox error flags drm/i915: Reattach comment, complete type specification drm/i915: Unconditionally flush any chipset buffers before execbuf drm/i915/gen9: Drop invalid WARN() during data rate calculation drm/i915/gen9: Initialize intel_state->active_crtcs during WM sanitization (v2)
2016-08-26drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATIONDaniel Vetter
For reasons that entirely elude me fb.h exposes all the structures, even when it is not enabled. Except for special stuff like fb_defio. Which means all the drivers which haven't yet switched over to the defio support in the helpers and still roll their own, will fail to compile when fbdev emulation is disabled. Protect just those bits, as a gnarly reminder that conversion to the core defio helpers would be good. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1470847958-28465-6-git-send-email-daniel.vetter@ffwll.ch Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-08-25Merge branch 'misc-fixes' into k.o/for-4.8-rcDoug Ledford
2016-08-25i40iw: Send last streaming mode message for loopback connectionsTatyana Nikolova
Send a zero length last streaming mode message for loopback connections to synchronize between accepting QP and connecting QP. This avoids data transfer to start on the accepting QP before the connecting QP is in RTS. Also remove function i40iw_loopback_nop() as it is no longer used. Fixes: f27b4746f378 ("i40iw: add connection management code") Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-25Revert "floppy: refactor open() flags handling"Jens Axboe
This reverts commit 09954bad448791ef01202351d437abdd9497a804.
2016-08-25Revert "floppy: fix open(O_ACCMODE) for ioctl-only open"Jens Axboe
This reverts commit ff06db1efb2ad6db06eb5b99b88a0c15a9cc9b0e.
2016-08-25Merge branch 'for-rc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal fixes from Zhang Rui: - Fix cpu_cooling to have separate thermal_cooling_device_ops structures for cpus with and without power model, to avoid NULL dereference in cpufreq_state2power. From Brendan Jackman. - Fix a possible NULL dereference in imx_thermal driver. From Corentin LABBE. - Another two trivial fixes, one typo fix and one deleting module owner. From Caesar Wang and Markus Elfring. * 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: thermal: imx: fix a possible NULL dereference thermal: trivial: fix the typo Thermal-INT3406: Delete owner assignment thermal: cpu_cooling: Fix NULL dereference in cpufreq_state2power
2016-08-25Merge branch 'drm-fixes-4.8' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes radeon and amdgpu fixes for 4.8. Nothing major: - fix a performance regression due to the LRU changes in 4.7 - 32 bit fixes - fix a PLL regression - misc bug fixes * 'drm-fixes-4.8' of git://people.freedesktop.org/~agd5f/linux: drm/amdgpu: skip TV/CV in display parsing drm/amdgpu: avoid a possible array overflow drm/amdgpu: fix lru size grouping v2 drm/amdgpu: fix timeout value check in amd_sched_job_recovery drm/amdgpu: fix sdma_v2_4_ring_test_ib drm/amdgpu: fix amdgpu_move_blit on 32bit systems drm/radeon: fix radeon_move_blit on 32bit systems drm/radeon: only apply the SS fractional workaround to RS[78]80
2016-08-25Merge tag 'drm/tegra/for-4.8-rc4' of ↵Dave Airlie
git://anongit.freedesktop.org/tegra/linux into drm-fixes drm/tegra: Fixes for v4.8-rc4 This contains one fix for DSI runtime power management support that was introduced in v4.8-rc1. This is slightly more elaborate than I would've wished, but there are a few corner cases that needed fixing. * tag 'drm/tegra/for-4.8-rc4' of git://anongit.freedesktop.org/tegra/linux: drm/tegra: dsi: Enhance runtime power management
2016-08-24dm log: fix unitialized bio operation flagsHeinz Mauelshagen
Commit e6047149db ("dm: use bio op accessors") switched DM over to using bio_set_op_attrs() but didn't take care to initialize lc->io_req.bi_op_flags in dm-log.c:rw_header(). This caused rw_header()'s call to dm_io() to make bio->bi_op_flags be uninitialized in dm-io.c:do_region(), which ultimately resulted in a SCSI BUG() in sd_init_command(). Also, adjust rw_header() and its callers to use REQ_OP_{READ|WRITE}. Fixes: e6047149db ("dm: use bio op accessors") Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Reviewed-by: Shaun Tancheff <shaun.tancheff@seagate.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-08-24dm flakey: fix reads to be issued if drop_writes configuredMike Snitzer
v4.8-rc3 commit 99f3c90d0d ("dm flakey: error READ bios during the down_interval") overlooked the 'drop_writes' feature, which is meant to allow reads to be issued rather than errored, during the down_interval. Fixes: 99f3c90d0d ("dm flakey: error READ bios during the down_interval") Reported-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2016-08-24IB/srpt: Update sport->port_guid with each port refreshDoug Ledford
If port_guid is set with the default subnet_prefix, then we get a change event and run a port refresh, we don't update the port_guid. As a result, attempts to create a target device that uses the new subnet_prefix in the wwn will fail to find a match and be rejected by the ib_srpt driver. This makes it impossible to configure a port if it was initialized with a default subnet_prefix and later changed to any non-default subnet-prefix. Updating the port refresh task to always update the wwn based upon the current subnext_prefix solves this problem. Cc: Bart Van Assche <bart.vanassche@sandisk.com> Cc: nab@linux-iscsi.org Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-24drm/amdgpu: skip TV/CV in display parsingAlex Deucher
No asics supported by amdgpu support analog TV. Workaround for bug: https://bugs.freedesktop.org/show_bug.cgi?id=97460 Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-08-24Merge tag 'for-linus-4.8b-rc3-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen regression fix from David Vrabel: "Fix a regression in the xenbus device preventing userspace tools from working" * tag 'for-linus-4.8b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: change the type of xen_vcpu_id to uint32_t xenbus: don't look up transaction IDs for ordinary writes
2016-08-24drm/amdgpu: avoid a possible array overflowAlex Deucher
When looking up the connector type make sure the index is valid. Avoids a later crash if we read past the end of the array. Workaround for bug: https://bugs.freedesktop.org/show_bug.cgi?id=97460 Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-08-24xenbus: don't look up transaction IDs for ordinary writesJan Beulich
This should really only be done for XS_TRANSACTION_END messages, or else at least some of the xenstore-* tools don't work anymore. Fixes: 0beef634b8 ("xenbus: don't BUG() on user mode induced condition") Reported-by: Richard Schütz <rschuetz@uni-koblenz.de> Cc: <stable@vger.kernel.org> Signed-off-by: Jan Beulich <jbeulich@suse.com> Tested-by: Richard Schütz <rschuetz@uni-koblenz.de> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2016-08-24RDMA/ocrdma: Fix the max_sge reported from FWSelvin Xavier
Current driver is reporting wrong values for max_sge and max_sge_rd in query_device. This breaks the nfs rdma and iser in some device profiles. Fixing the driver to report correct values from FW. Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Doug Ledford <dledford@redhat.com>