1. 25 Sep, 2015 13 commits
    • Linus Torvalds's avatar
      Merge branch 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup · d4a748a1
      Linus Torvalds authored
      Pull another cgroup fix from Tejun Heo:
       "The cgroup writeback support got inadvertently enabled for traditional
        hierarchies revealing two regressions which are currently being worked
        on.  It shouldn't have been enabled on traditional hierarchies, so
        disable it on them.  This is enough to make the regressions go away
        for people who aren't experimenting with cgroup"
      
      * 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
        cgroup, writeback: don't enable cgroup writeback on traditional hierarchies
      d4a748a1
    • Linus Torvalds's avatar
      Merge branch 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · 03e8f644
      Linus Torvalds authored
      Pull btrfs fixes from Chris Mason:
       "This is an assorted set I've been queuing up:
      
        Jeff Mahoney tracked down a tricky one where we ended up starting IO
        on the wrong mapping for special files in btrfs_evict_inode.  A few
        people reported this one on the list.
      
        Filipe found (and provided a test for) a difficult bug in reading
        compressed extents, and Josef fixed up some quota record keeping with
        snapshot deletion.  Chandan killed off an accounting bug during DIO
        that lead to WARN_ONs as we freed inodes"
      
      * 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
        Btrfs: keep dropped roots in cache until transaction commit
        Btrfs: Direct I/O: Fix space accounting
        btrfs: skip waiting on ordered range for special files
        Btrfs: fix read corruption of compressed and shared extents
        Btrfs: remove unnecessary locking of cleaner_mutex to avoid deadlock
        Btrfs: don't initialize a space info as full to prevent ENOSPC
      03e8f644
    • Linus Torvalds's avatar
      Merge tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs · 101688f5
      Linus Torvalds authored
      Pull NFS client bugfixes from Trond Myklebust:
       "Highlights include:
      
        Stable patches:
         - fix v4.2 SEEK on files over 2 gigs
         - Fix a layout segment reference leak when pNFS I/O falls back to inband I/O.
         - Fix recovery of recalled read delegations
      
        Bugfixes:
         - Fix a case where NFSv4 fails to send CLOSE after a server reboot
         - Fix sunrpc to wait for connections to complete before retrying
         - Fix sunrpc races between transport connect/disconnect and shutdown
         - Fix an infinite loop when layoutget fail with BAD_STATEID
         - nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
         - Fix a bogus WARN_ON_ONCE() in O_DIRECT when layout commit_through_mds is set
         - Fix layoutreturn/close ordering issues"
      
      * tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
        NFS41: make close wait for layoutreturn
        NFS: Skip checking ds_cinfo.buckets when lseg's commit_through_mds is set
        NFSv4.x/pnfs: Don't try to recover stateids twice in layoutget
        NFSv4: Recovery of recalled read delegations is broken
        NFS: Fix an infinite loop when layoutget fail with BAD_STATEID
        NFS: Do cleanup before resetting pageio read/write to mds
        SUNRPC: xs_sock_mark_closed() does not need to trigger socket autoclose
        SUNRPC: Lock the transport layer on shutdown
        nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
        SUNRPC: Ensure that we wait for connections to complete before retrying
        SUNRPC: drop null test before destroy functions
        nfs: fix v4.2 SEEK on files over 2 gigs
        SUNRPC: Fix races between socket connection and destroy code
        nfs: fix pg_test page count calculation
        Failing to send a CLOSE if file is opened WRONLY and server reboots on a 4.x mount
      101688f5
    • Linus Torvalds's avatar
      Merge tag 'sound-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · ddff42e5
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "This ended up with a larger set of fixes than wished, unfortunately.
      
        As diffstat shows, the majority of changes are for various ASoC
        drivers (Realtek, Wolfson codec drivers, etc), in addition to a couple
        of HD-audio regression fixes.  All these are reasonably small and
        nothing to scare much"
      
      * tag 'sound-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
        ALSA: hda - Disable power_save_node for Thinkpads
        ALSA: hda/tegra - async probe for avoiding module loading deadlock
        ASoC: rt5645: Prevent the pop sound in case of playback and the jack is plugging
        ASoC: rt5645: Increase the delay time to remove the pop sound
        ASoC: rt5645: Use the type SOC_DAPM_SINGLE_AUTODISABLE to prevent the weird sound in runtime of power up
        ASoC: pxa: pxa2xx-ac97: fix dma requestor lines
        MAINTAINERS: Update website and git repo for Wolfson Microelectronics
        ASoC: fsl_ssi: Fix checking of dai format for AC97 mode
        ASoC: wm0010: fix error path
        ASoC: wm0010: fix memory leak
        ASoC: wm8960: correct the max register value of mic boost pga
        ASoC: wm8962: remove 64k sample rate support
        ASoC: davinci-mcasp: Fix devm_kasprintf format string
        ASoC: fix broken pxa SoC support
        ASoC: davinci-mcasp: Set .symmetric_rates = 1 in snd_soc_dai_driver
        ASoC: au1x: psc-i2s: Fix unused variable 'ret' warning
        ASoC: SPEAr: Make SND_SPEAR_SOC select SND_SOC_GENERIC_DMAENGINE_PCM
        ASoC: mediatek: Increase periods_min in capture
        ASoC: davinci-mcasp: Revise the FIFO threshold calculation
        ASoC: wm8960: correct gain value for input PGA and add microphone PGA
        ...
      ddff42e5
    • Linus Torvalds's avatar
      Merge tag 'pci-v4.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 966966a6
      Linus Torvalds authored
      Pull PCI fixes from Bjorn Helgaas:
       "These are fixes for things we merged for v4.3 (VPD, MSI, and bridge
        window management), and a new Renesas R8A7794 SoC device ID.
      
        Details:
      
        Resource management:
         - Revert pci_read_bridge_bases() unification (Bjorn Helgaas)
         - Clear IORESOURCE_UNSET when clipping a bridge window (Bjorn
           Helgaas)
      
        MSI:
         - Fix MSI IRQ domains for VFs on virtual buses (Alex Williamson)
      
        Renesas R-Car host bridge driver:
         - Add R8A7794 support (Sergei Shtylyov)
      
        Miscellaneous:
         - Fix devfn for VPD access through function 0 (Alex Williamson)
         - Use function 0 VPD only for identical functions (Alex Williamson)"
      
      * tag 'pci-v4.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
        PCI: rcar: Add R8A7794 support
        PCI: Use function 0 VPD for identical functions, regular VPD for others
        PCI: Fix devfn for VPD access through function 0
        PCI/MSI: Fix MSI IRQ domains for VFs on virtual buses
        PCI: Clear IORESOURCE_UNSET when clipping a bridge window
        PCI: Revert "PCI: Call pci_read_bridge_bases() from core instead of arch code"
      966966a6
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · b6d980f4
      Linus Torvalds authored
      Pull KVM fixes from Paolo Bonzini:
       "AMD fixes for bugs introduced in the 4.2 merge window, and a few PPC
        bug fixes too"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        KVM: disable halt_poll_ns as default for s390x
        KVM: x86: fix off-by-one in reserved bits check
        KVM: x86: use correct page table format to check nested page table reserved bits
        KVM: svm: do not call kvm_set_cr0 from init_vmcb
        KVM: x86: trap AMD MSRs for the TSeg base and mask
        KVM: PPC: Book3S: Take the kvm->srcu lock in kvmppc_h_logical_ci_load/store()
        KVM: PPC: Book3S HV: Pass the correct trap argument to kvmhv_commence_exit
        KVM: PPC: Book3S HV: Fix handling of interrupted VCPUs
        kvm: svm: reset mmu on VCPU reset
      b6d980f4
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 57cb635c
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       - Wire up sys_membarrier()
       - cxl: Fix lockdep warning while creating afu_err_buff from Vaibhav
      
      * tag 'powerpc-4.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        cxl: Fix lockdep warning while creating afu_err_buff attribute
        powerpc: Wire up sys_membarrier()
      57cb635c
    • David Hildenbrand's avatar
      KVM: disable halt_poll_ns as default for s390x · 920552b2
      David Hildenbrand authored
      We observed some performance degradation on s390x with dynamic
      halt polling. Until we can provide a proper fix, let's enable
      halt_poll_ns as default only for supported architectures.
      
      Architectures are now free to set their own halt_poll_ns
      default value.
      Signed-off-by: default avatarDavid Hildenbrand <dahi@linux.vnet.ibm.com>
      Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      920552b2
    • Paolo Bonzini's avatar
      KVM: x86: fix off-by-one in reserved bits check · 58c95070
      Paolo Bonzini authored
      29ecd660 ("KVM: x86: avoid uninitialized variable warning",
      2015-09-06) introduced a not-so-subtle problem, which probably
      escaped review because it was not part of the patch context.
      
      Before the patch, leaf was always equal to iterator.level.  After,
      it is equal to iterator.level - 1 in the call to is_shadow_zero_bits_set,
      and when is_shadow_zero_bits_set does another "-1" the check on
      reserved bits becomes incorrect.  Using "iterator.level" in the call
      fixes this call trace:
      
      WARNING: CPU: 2 PID: 17000 at arch/x86/kvm/mmu.c:3385 handle_mmio_page_fault.part.93+0x1a/0x20 [kvm]()
      Modules linked in: tun sha256_ssse3 sha256_generic drbg binfmt_misc ipv6 vfat fat fuse dm_crypt dm_mod kvm_amd kvm crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd fam15h_power amd64_edac_mod k10temp edac_core amdkfd amd_iommu_v2 radeon acpi_cpufreq
      [...]
      Call Trace:
        dump_stack+0x4e/0x84
        warn_slowpath_common+0x95/0xe0
        warn_slowpath_null+0x1a/0x20
        handle_mmio_page_fault.part.93+0x1a/0x20 [kvm]
        tdp_page_fault+0x231/0x290 [kvm]
        ? emulator_pio_in_out+0x6e/0xf0 [kvm]
        kvm_mmu_page_fault+0x36/0x240 [kvm]
        ? svm_set_cr0+0x95/0xc0 [kvm_amd]
        pf_interception+0xde/0x1d0 [kvm_amd]
        handle_exit+0x181/0xa70 [kvm_amd]
        ? kvm_arch_vcpu_ioctl_run+0x68b/0x1730 [kvm]
        kvm_arch_vcpu_ioctl_run+0x6f6/0x1730 [kvm]
        ? kvm_arch_vcpu_ioctl_run+0x68b/0x1730 [kvm]
        ? preempt_count_sub+0x9b/0xf0
        ? mutex_lock_killable_nested+0x26f/0x490
        ? preempt_count_sub+0x9b/0xf0
        kvm_vcpu_ioctl+0x358/0x710 [kvm]
        ? __fget+0x5/0x210
        ? __fget+0x101/0x210
        do_vfs_ioctl+0x2f4/0x560
        ? __fget_light+0x29/0x90
        SyS_ioctl+0x4c/0x90
        entry_SYSCALL_64_fastpath+0x16/0x73
      ---[ end trace 37901c8686d84de6 ]---
      Reported-by: default avatarBorislav Petkov <bp@alien8.de>
      Tested-by: default avatarBorislav Petkov <bp@alien8.de>
      Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      58c95070
    • Paolo Bonzini's avatar
      KVM: x86: use correct page table format to check nested page table reserved bits · 6fec2144
      Paolo Bonzini authored
      Intel CPUID on AMD host or vice versa is a weird case, but it can
      happen.  Handle it by checking the host CPU vendor instead of the
      guest's in reset_tdp_shadow_zero_bits_mask.  For speed, the
      check uses the fact that Intel EPT has an X (executable) bit while
      AMD NPT has NX.
      Reported-by: default avatarBorislav Petkov <bp@alien8.de>
      Tested-by: default avatarBorislav Petkov <bp@alien8.de>
      Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      6fec2144
    • Paolo Bonzini's avatar
      KVM: svm: do not call kvm_set_cr0 from init_vmcb · 79a8059d
      Paolo Bonzini authored
      kvm_set_cr0 may want to call kvm_zap_gfn_range and thus access the
      memslots array (SRCU protected).  Using a mini SRCU critical section
      is ugly, and adding it to kvm_arch_vcpu_create doesn't work because
      the VMX vcpu_create callback calls synchronize_srcu.
      
      Fixes this lockdep splat:
      
      ===============================
      [ INFO: suspicious RCU usage. ]
      4.3.0-rc1+ #1 Not tainted
      -------------------------------
      include/linux/kvm_host.h:488 suspicious rcu_dereference_check() usage!
      
      other info that might help us debug this:
      rcu_scheduler_active = 1, debug_locks = 0
      1 lock held by qemu-system-i38/17000:
       #0:  (&(&kvm->mmu_lock)->rlock){+.+...}, at: kvm_zap_gfn_range+0x24/0x1a0 [kvm]
      
      [...]
      Call Trace:
       dump_stack+0x4e/0x84
       lockdep_rcu_suspicious+0xfd/0x130
       kvm_zap_gfn_range+0x188/0x1a0 [kvm]
       kvm_set_cr0+0xde/0x1e0 [kvm]
       init_vmcb+0x760/0xad0 [kvm_amd]
       svm_create_vcpu+0x197/0x250 [kvm_amd]
       kvm_arch_vcpu_create+0x47/0x70 [kvm]
       kvm_vm_ioctl+0x302/0x7e0 [kvm]
       ? __lock_is_held+0x51/0x70
       ? __fget+0x101/0x210
       do_vfs_ioctl+0x2f4/0x560
       ? __fget_light+0x29/0x90
       SyS_ioctl+0x4c/0x90
       entry_SYSCALL_64_fastpath+0x16/0x73
      Reported-by: default avatarBorislav Petkov <bp@alien8.de>
      Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      79a8059d
    • Linus Torvalds's avatar
      Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux · ced255c0
      Linus Torvalds authored
      Pull thermal management fixes from Zhang Rui:
      
       - Power allocator governor changes to allow binding on thermal zones
         with missing power estimates information.  From Javi Merino.
      
       - Add compile test flags on thermal drivers that allow it without
         producing compilation errors.  From Eduardo Valentin.
      
       - Fixes around memory allocation on cpu_cooling.  From Javi Merino.
      
       - Fix on db8500 cpufreq code to allow autoload.  From Luis de
         Bethencourt.
      
       - Maintainer entries for cpu cooling device
      
      * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
        thermal: power_allocator: exit early if there are no cooling devices
        thermal: power_allocator: don't require tzp to be present for the thermal zone
        thermal: power_allocator: relax the requirement of two passive trip points
        thermal: power_allocator: relax the requirement of a sustainable_power in tzp
        thermal: Add a function to get the minimum power
        thermal: cpu_cooling: free power table on error or when unregistering
        thermal: cpu_cooling: don't call kcalloc() under rcu_read_lock
        thermal: db8500_cpufreq_cooling: Fix module autoload for OF platform driver
        thermal: cpu_cooling: Add MAINTAINERS entry
        thermal: ti-soc: Kconfig fix to avoid menu showing wrongly
        thermal: ti-soc: allow compile test
        thermal: qcom_spmi: allow compile test
        thermal: exynos: allow compile test
        thermal: armada: allow compile test
        thermal: dove: allow compile test
        thermal: kirkwood: allow compile test
        thermal: rockchip: allow compile test
        thermal: spear: allow compile test
        thermal: hisi: allow compile test
        thermal: Fix thermal_zone_of_sensor_register to match documentation
      ced255c0
    • Linus Torvalds's avatar
      Merge tag 'devicetree-fixes-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux · 4401555a
      Linus Torvalds authored
      Pull DeviceTree fixes from Rob Herring:
       - Silence bogus warning for of_irq_parse_pci
       - Fix typo in ARM idle-states binding doc and dts files
       - Various minor binding documentation updates
      
      * tag 'devicetree-fixes-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
        Documentation: arm: Fix typo in the idle-states bindings examples
        gpio: mention in DT binding doc that <name>-gpio is deprecated
        of_pci_irq: Silence bogus "of_irq_parse_pci() failed ..." messages.
        devicetree: bindings: Extend the bma180 bindings with bma250 info
        of: thermal: Mark cooling-*-level properties optional
        of: thermal: Fix inconsitency between cooling-*-state and cooling-*-level
        Docs: dt: add #msi-cells to GICv3 ITS binding
        of: add vendor prefix for Socionext Inc.
      4401555a
  2. 24 Sep, 2015 20 commits
  3. 23 Sep, 2015 7 commits