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2017-10-11iomap_dio_actor(): fix iov_iter bugsAl Viro1-9/+15
1) Ignoring return value from iov_iter_zero() is wrong for iovec-backed case as well as for pipes - it can fail. 2) Failure to fault destination pages in 25Mb into a 50Mb iovec should not act as if nothing in the area had been read, nevermind that the first 25Mb might have *already* been read by that point. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11switch ksocknal_lib_recv_...() to use of iov_iter_for_each_range()Al Viro3-109/+25
... and fold kvec and bio_vec variants in one Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11lustre: switch struct ksock_conn to iov_iterAl Viro4-121/+52
Merge ksnc_rx_{no_wanted,iov,kiov,niov,nkiov} into a single iov_iter (ksnc_rx_to). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11vhost/scsi: switch to iov_iter_get_pages()Al Viro1-48/+20
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11fix a page leak in vhost_scsi_iov_to_sgl() error recoveryAl Viro1-2/+3
we are advancing sg as we go, so the pages we need to drop in case of error are *before* the current sg. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11new primitive: iov_iter_for_each_range()Al Viro2-0/+26
For kvec and bvec: feeds segments to given callback as long as it returns 0. For iovec and pipe: fails. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11lnet_return_rx_credits_locked: don't abuse list_entryAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11xen: don't open-code iov_iter_kvec()Al Viro1-12/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11orangefs: remove detritus from struct orangefs_kiocb_sAl Viro1-6/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11kill iov_shorten()Al Viro2-23/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11bio_alloc_map_data(): do bmd->iter setup right thereAl Viro1-8/+12
just need to copy it iter instead of iter->nr_segs Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11bio_copy_user_iov(): saner bio size calculationAl Viro1-24/+6
it's a bounce buffer; we don't *care* how badly is the real source/destination fragmented, all that matters is the total size. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11bio_map_user_iov(): get rid of copying iov_iterAl Viro1-6/+3
we do want *iter advanced Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11bio_copy_from_iter(): get rid of copying iov_iterAl Viro1-5/+6
we want the one passed to it advanced, anyway Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11move more stuff down into bio_copy_user_iov()Al Viro2-6/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11blk_rq_map_user_iov(): move iov_iter_advance() downAl Viro3-5/+6
... into bio_{map,copy}_user_iov() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11bio_map_user_iov(): get rid of the iov_for_each()Al Viro1-19/+2
Use iov_iter_npages() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11bio_map_user_iov(): move alignment check into the main loopAl Viro1-27/+27
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11don't rely upon subsequent bio_add_pc_page() calls failingAl Viro1-4/+4
... they might actually succeed in some cases (when we are at the queue-imposed segments limit, the next page is not mergable with the last one we'd got in, but the first page covered by the next iovec *is* mergable). Make sure that once it's failed, we are done with that bio. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11... and with iov_iter_get_pages_alloc() it becomes even simplerAl Viro1-16/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-11bio_map_user_iov(): switch to iov_iter_get_pages()/iov_iter_advance()Al Viro1-33/+24
... and to hell with iov_for_each() nonsense Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-10bio_copy_user_iov(): don't ignore ->iov_offsetAl Viro1-2/+2
Since "block: support large requests in blk_rq_map_user_iov" we started to call it with partially drained iter; that works fine on the write side, but reads create a copy of iter for completion time. And that needs to take the possibility of ->iov_iter != 0 into account... Cc: stable@vger.kernel.org #v4.5+ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-10more bio_map_user_iov() leak fixesAl Viro1-5/+9
we need to take care of failure exit as well - pages already in bio should be dropped by analogue of bio_unmap_pages(), since their refcounts had been bumped only once per reference in bio. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-10fix unbalanced page refcounting in bio_map_user_iovVitaly Mayatskikh1-0/+8
bio_map_user_iov and bio_unmap_user do unbalanced pages refcounting if IO vector has small consecutive buffers belonging to the same page. bio_add_pc_page merges them into one, but the page reference is never dropped. Cc: stable@vger.kernel.org Signed-off-by: Vitaly Mayatskikh <v.mayatskih@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-10direct-io: Prevent NULL pointer access in submit_page_sectionAndreas Gruenbacher1-1/+2
In the code added to function submit_page_section by commit b1058b981, sdio->bio can currently be NULL when calling dio_bio_submit. This then leads to a NULL pointer access in dio_bio_submit, so check for a NULL bio in submit_page_section before trying to submit it instead. Fixes xfstest generic/250 on gfs2. Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-08Linux 4.14-rc4Linus Torvalds1-1/+1
2017-10-07Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds8-31/+36
Pull SCSI fixes from James Bottomley: - a couple of serious fixes: use after free and blacklist for WRITE SAME - one error leg fix: write_pending failure - one user experience problem: do not override max_sectors_kb - one minor unused function removal * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ibmvscsis: Fix write_pending failure path scsi: libiscsi: Remove iscsi_destroy_session scsi: libiscsi: Fix use-after-free race during iscsi_session_teardown scsi: sd: Do not override max_sectors_kb sysfs setting scsi: sd: Implement blacklist option for WRITE SAME w/ UNMAP
2017-10-07Merge branch 'i2c/for-current-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds5-10/+14
Pull i2c fixes from Wolfram Sang: "I2C has three driver fixes for the newly introduced drivers and one ID addition for the i801 driver" * 'i2c/for-current-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: i2c-stm32f7: make structure stm32f7_setup static const i2c: ensure termination of *_device_id tables i2c: i801: Add support for Intel Cedar Fork i2c: stm32f7: fix setup structure
2017-10-07Merge tag 'mmc-v4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds11-162/+81
Pull MMC fixes from Ulf Hansson: "MMC core: - Fix driver strength selection when selecting hs400es - Delete bounce buffer handling: This change fixes a problem related to how bounce buffers are being allocated. However, instead of trying to fix that, let's just remove the mmc bounce buffer code altogether, as it has practically no use. MMC host: - meson-gx: A couple of fixes related to clock/phase/tuning - sdhci-xenon: Fix clock resource by adding an optional bus clock" * tag 'mmc-v4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-xenon: Fix clock resource by adding an optional bus clock mmc: meson-gx: include tx phase in the tuning process mmc: meson-gx: fix rx phase reset mmc: meson-gx: make sure the clock is rounded down mmc: Delete bounce buffer handling mmc: core: add driver strength selection when selecting hs400es
2017-10-06Merge tag 'hwmon-for-linus-v4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-stagingLinus Torvalds1-8/+11
Pull hwmon fix from Guenter Roeck: "Fix up error path in xgene driver" * tag 'hwmon-for-linus-v4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (xgene) Fix up error handling path mixup in 'xgene_hwmon_probe()'
2017-10-06Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds3-5/+23
Pull clk fixes from Stephen Boyd: - build fix to export the clk_bulk_prepare() symbol - suspend fix for Samsung Exynos SoCs where we need to keep clks on across suspend - two critical clk markings for clks that shouldn't ever turn off on Rockchip SoCs - a fix for a copy-paste mistake on Rockchip rk3128 causing some clks to touch the same bit and trample over one another * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: samsung: exynos4: Enable VPLL and EPLL clocks for suspend/resume cycle clk: Export clk_bulk_prepare() clk: rockchip: add sclk_timer5 as critical clock on rk3128 clk: rockchip: fix up rk3128 pvtm and mipi_24m gate regs error clk: rockchip: add pclk_pmu as critical clock on rk3128
2017-10-06Merge tag 'arc-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arcLinus Torvalds17-28/+130
Pull ARC udpates from Vineet Gupta: - updates for various platforms - boot log updates for upcoming HS48 family of cores (dual issue) * tag 'arc-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: [plat-hsdk]: Add reset controller node to manage ethernet reset ARC: [plat-hsdk]: Temporary fix to set CPU frequency to 1GHz ARC: fix allnoconfig build warning ARCv2: boot log: identify HS48 cores (dual issue) ARC: boot log: decontaminate ARCv2 ISA_CONFIG register arc: remove redundant UTS_MACHINE define in arch/arc/Makefile ARC: [plat-eznps] Update platform maintainer as Noam left ARC: [plat-hsdk] use actual clk driver to manage cpu clk ARC: [*defconfig] Reenable soft lock-up detector ARC: [plat-axs10x] sdio: Temporary fix of sdio ciu frequency ARC: [plat-hsdk] sdio: Temporary fix of sdio ciu frequency ARC: [plat-axs103] Add temporary quirk to reset ethernet IP
2017-10-06Merge tag 'xfs-4.14-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds2-3/+30
Pull xfs fixes from Darrick Wong: - fix a race between overlapping copy on write aio - fix cow fork swapping when we defragment reflinked files * tag 'xfs-4.14-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: handle racy AIO in xfs_reflink_end_cow xfs: always swap the cow forks when swapping extents
2017-10-06Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds9-22/+45
Pull block fixes from Jens Axboe: "A collection of fixes for this series. This contains: - NVMe pull request from Christoph, one uuid attribute fix, and one fix for the controller memory buffer address for remapped BARs. - use-after-free fix for bsg, from Benjamin Block. - bcache race/use-after-free fix for a list traversal, fixing a regression in this merge window. From Coly Li. - null_blk change configfs dependency change from a 'depends' to a 'select'. This is a change from this merge window as well. From me. - nbd signal fix from Josef, fixing a regression introduced with the status code changes. - nbd MAINTAINERS mailing list entry update. - blk-throttle stall fix from Joseph Qi. - blk-mq-debugfs fix from Omar, fixing an issue where we don't register the IO scheduler debugfs directory, if the driver is loaded with it. Only shows up if you switch through the sysfs interface" * 'for-linus' of git://git.kernel.dk/linux-block: bsg-lib: fix use-after-free under memory-pressure nvme-pci: Use PCI bus address for data/queues in CMB blk-mq-debugfs: fix device sched directory for default scheduler null_blk: change configfs dependency to select blk-throttle: fix possible io stall when upgrade to max MAINTAINERS: update list for NBD nbd: fix -ERESTARTSYS handling nvme: fix visibility of "uuid" ns attribute bcache: use llist_for_each_entry_safe() in __closure_wake_up()
2017-10-06Merge tag 'pci-v4.14-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds3-27/+50
Pull PCI fixes from Bjorn Helgaas: "Fix legacy IDE probe issues exposed by recent PCI core IRQ mapping changes (Bartlomiej Zolnierkiewicz, Lorenzo Pieralisi)" * tag 'pci-v4.14-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: ide: fix IRQ assignment for PCI bus order probing ide: pci: free PCI BARs on initialization failure ide: free hwif->portdev on hwif_init() failure
2017-10-06Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds6-7/+45
Pull arm64 fixes from Catalin Marinas: - Bring initialisation of user space undefined instruction handling early (core_initcall) since late_initcall() happens after modprobe in initramfs is invoked. Similar fix for fpsimd initialisation - Increase the kernel stack when KASAN is enabled - Bring the PCI ACS enabling earlier via the iort_init_platform_devices() - Fix misleading data abort address printing (decimal vs hex) * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Ensure fpsimd support is ready before userspace is active arm64: Ensure the instruction emulation is ready for userspace arm64: Use larger stacks when KASAN is selected ACPI/IORT: Fix PCI ACS enablement arm64: fix misleading data abort decoding
2017-10-06Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds7-13/+20
Pull KVM fixes from Radim Krčmář: - fix PPC XIVE interrupt delivery - fix x86 RCU breakage from asynchronous page faults when built without PREEMPT_COUNT - fix x86 build with -frecord-gcc-switches - fix x86 build without X86_LOCAL_APIC * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: add X86_LOCAL_APIC dependency x86/kvm: Move kvm_fastop_exception to .fixup section kvm/x86: Avoid async PF preempting the kernel incorrectly KVM: PPC: Book3S: Fix server always zero from kvmppc_xive_get_xive()
2017-10-06Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdmaLinus Torvalds9-14/+34
Pull rdma fixes from Doug Ledford: "This is a pretty small pull request. Only 6 patches in total. There are no outstanding -rc patches on the mailing list after this pull request, so only if some new issues are discovered in the remainder of the rc cycles will you hear from me again. Summary: - a fix for iwpm netlink usage - a fix for error unwinding in mlx5 - two fixes to vlan handling in qedr - a couple small i40iw fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: i40iw: Fix port number for query QP i40iw: Add missing memory barriers RDMA/qedr: Parse vlan priority as sl RDMA/qedr: Parse VLAN ID correctly and ignore the value of zero IB/mlx5: Fix label order in error path handling RDMA/iwpm: Properly mark end of NL messages
2017-10-06Merge branch 'for-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds2-2/+2
Pull btrfs fixes from David Sterba: "Two more fixes for bugs introduced in 4.13. The sector_t problem with 32bit architecture and !LBDAF config seems serious but the number of affected deployments is hopefully low. The clashing status bits could lead to a confusing in-memory state of the whole-filesystem operations if used with the quota override sysfs knob" * 'for-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: Btrfs: fix overlap of fs_info::flags values btrfs: avoid overflow when sector_t is 32 bit
2017-10-06Merge tag 'ceph-for-4.14-rc4' of git://github.com/ceph/ceph-clientLinus Torvalds2-10/+9
Pull ceph fixes from Ilya Dryomov: "Two fixups for CephFS snapshot-handling patches in -rc1" * tag 'ceph-for-4.14-rc4' of git://github.com/ceph/ceph-client: ceph: fix __choose_mds() for LSSNAP request ceph: properly queue cap snap for newly created snap realm
2017-10-06ARC: [plat-hsdk]: Add reset controller node to manage ethernet resetEugeniy Paltsev2-0/+10
DW ethernet controller on HSDK hangs sometimes after SW reset, so add reset node to make possible to reset DW ethernet controller HW. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-10-06Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfsLinus Torvalds10-37/+60
Pull overlayfs fixes from Miklos Szeredi: "Fix a regression in 4.14 and one in 4.13. The latter is a case when Docker is doing something it really shouldn't and gets away with it. We now print a warning instead of erroring out. There are also fixes to several error paths" * 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: fix regression caused by exclusive upper/work dir protection ovl: fix missing unlock_rename() in ovl_do_copy_up() ovl: fix dentry leak in ovl_indexdir_cleanup() ovl: fix dput() of ERR_PTR in ovl_cleanup_index() ovl: fix error value printed in ovl_lookup_index() ovl: fix may_write_real() for overlayfs directories
2017-10-06Merge tag 'powerpc-4.14-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds8-9/+48
Pull powerpc fixes from Michael Ellerman: "Nine small fixes, really nothing that stands out. A work-around for a spurious MCE on Power9. A CXL fault handling fix, some fixes to the new XIVE code, and a fix to the new 32-bit STRICT_KERNEL_RWX code. Fixes for old code/stable: an fix to an incorrect TLB flush on boot but not on any current machines, a compile error on 4xx and a fix to memory hotplug when using radix (Power9). Thanks to: Anton Blanchard, Cédric Le Goater, Christian Lamparter, Christophe Leroy, Christophe Lombard, Guenter Roeck, Jeremy Kerr, Michael Neuling, Nicholas Piggin" * tag 'powerpc-4.14-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/powernv: Increase memory block size to 1GB on radix powerpc/mm: Call flush_tlb_kernel_range with interrupts enabled powerpc/xive: Clear XIVE internal structures when a CPU is removed powerpc/xive: Fix IPI reset powerpc/4xx: Fix compile error with 64K pages on 40x, 44x powerpc: Fix action argument for cpufeatures-based TLB flush cxl: Fix memory page not handled powerpc: Fix workaround for spurious MCE on POWER9 powerpc: Handle MCE on POWER9 with only DSISR bit 30 set
2017-10-06Merge tag 'drm-fixes-for-v4.14-rc4' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds9-34/+44
Pull drm fixes from Dave Airlie: "Some i915 fixes from the last two weeks (as they were on a strange base and I just waited for rc3), also a single sun4i hdmi fix" * tag 'drm-fixes-for-v4.14-rc4' of git://people.freedesktop.org/~airlied/linux: drm/i915/glk: Fix DMC/DC state idleness calculation drm/i915/cnl: Reprogram DMC firmware after S3/S4 resume drm/i915: Fix DDI PHY init if it was already on drm/sun4i: hdmi: Disable clks in bind function error path and unbind function drm/i915/bios: ignore HDMI on port A drm/i915: remove redundant variable hw_check drm/i915: always update ELD connector type after get modes
2017-10-06Merge branch 'core-watchdog-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds10-604/+456
Pull watchddog clean-up and fixes from Thomas Gleixner: "The watchdog (hard/softlockup detector) code is pretty much broken in its current state. The patch series addresses this by removing all duct tape and refactoring it into a workable state. The reasons why I ask for inclusion that late in the cycle are: 1) The code causes lockdep splats vs. hotplug locking which get reported over and over. Unfortunately there is no easy fix. 2) The risk of breakage is minimal because it's already broken 3) As 4.14 is a long term stable kernel, I prefer to have working watchdog code in that and the lockdep issues resolved. I wouldn't ask you to pull if 4.14 wouldn't be a LTS kernel or if the solution would be easy to backport. 4) The series was around before the merge window opened, but then got delayed due to the UP failure caused by the for_each_cpu() surprise which we discussed recently. Changes vs. V1: - Addressed your review points - Addressed the warning in the powerpc code which was discovered late - Changed two function names which made sense up to a certain point in the series. Now they match what they do in the end. - Fixed a 'unused variable' warning, which got not detected by the intel robot. I triggered it when trying all possible related config combinations manually. Randconfig testing seems not random enough. The changes have been tested by and reviewed by Don Zickus and tested and acked by Micheal Ellerman for powerpc" * 'core-watchdog-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits) watchdog/core: Put softlockup_threads_initialized under ifdef guard watchdog/core: Rename some softlockup_* functions powerpc/watchdog: Make use of watchdog_nmi_probe() watchdog/core, powerpc: Lock cpus across reconfiguration watchdog/core, powerpc: Replace watchdog_nmi_reconfigure() watchdog/hardlockup/perf: Fix spelling mistake: "permanetely" -> "permanently" watchdog/hardlockup/perf: Cure UP damage watchdog/hardlockup: Clean up hotplug locking mess watchdog/hardlockup/perf: Simplify deferred event destroy watchdog/hardlockup/perf: Use new perf CPU enable mechanism watchdog/hardlockup/perf: Implement CPU enable replacement watchdog/hardlockup/perf: Implement init time detection of perf watchdog/hardlockup/perf: Implement init time perf validation watchdog/core: Get rid of the racy update loop watchdog/core, powerpc: Make watchdog_nmi_reconfigure() two stage watchdog/sysctl: Clean up sysctl variable name space watchdog/sysctl: Get rid of the #ifdeffery watchdog/core: Clean up header mess watchdog/core: Further simplify sysctl handling watchdog/core: Get rid of the thread teardown/setup dance ...
2017-10-06arm64: Ensure fpsimd support is ready before userspace is activeSuzuki K Poulose1-1/+1
We register the pm/hotplug callbacks for FPSIMD as late_initcall, which happens after the userspace is active (from initramfs via populate_rootfs, a rootfs_initcall). Make sure we are ready even before the userspace could potentially use it, by promoting to a core_initcall. Cc: Will Deacon <will.deacon@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Dave Martin <dave.martin@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2017-10-06arm64: Ensure the instruction emulation is ready for userspaceSuzuki K Poulose2-2/+2
We trap and emulate some instructions (e.g, mrs, deprecated instructions) for the userspace. However the handlers for these are registered as late_initcalls and the userspace could be up and running from the initramfs by that time (with populate_rootfs, which is a rootfs_initcall()). This could cause problems for the early applications ending up in failure like : [ 11.152061] modprobe[93]: undefined instruction: pc=0000ffff8ca48ff4 This patch promotes the specific calls to core_initcalls, which are guaranteed to be completed before we hit userspace. Cc: stable@vger.kernel.org Cc: Dave Martin <dave.martin@arm.com> Cc: Matthias Brugger <mbrugger@suse.com> Cc: James Morse <james.morse@arm.com> Reported-by: Matwey V. Kornilov <matwey.kornilov@gmail.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2017-10-06powerpc/powernv: Increase memory block size to 1GB on radixAnton Blanchard1-1/+9
Memory hot unplug on PowerNV radix hosts is broken. Our memory block size is 256MB but since we map the linear region with very large pages, each pte we tear down maps 1GB. A hot unplug of one 256MB memory block results in 768MB of memory getting unintentionally unmapped. At this point we are likely to oops. Fix this by increasing our memory block size to 1GB on PowerNV radix hosts. Fixes: 4b5d62ca17a1 ("powerpc/mm: add radix__remove_section_mapping()") Cc: stable@vger.kernel.org # v4.11+ Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-10-06Merge tag 'drm-misc-fixes-2017-10-05' of git://anongit.freedesktop.org/git/drm-misc into drm-fixesDave Airlie1-5/+14
One bugfix in sun4i for 4.14 * tag 'drm-misc-fixes-2017-10-05' of git://anongit.freedesktop.org/git/drm-misc: drm/sun4i: hdmi: Disable clks in bind function error path and unbind function
2017-10-06Merge tag 'drm-intel-fixes-2017-10-04' of git://anongit.freedesktop.org/git/drm-intel into drm-fixesDave Airlie4-22/+6
drm/i915 fixes for 4.14-rc4: All 3 highest GLK bugs fixed by Imre: - GLK drv reload - Fix DDI Phy init if it was already on. - GLK suspend resume - Reprogram DMC firmware after s3/s4. - GLK DC states - Fix idleness calculation. * tag 'drm-intel-fixes-2017-10-04' of git://anongit.freedesktop.org/git/drm-intel: drm/i915/glk: Fix DMC/DC state idleness calculation drm/i915/cnl: Reprogram DMC firmware after S3/S4 resume drm/i915: Fix DDI PHY init if it was already on
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