1. 03 11月, 2016 19 次提交
  2. 28 10月, 2016 2 次提交
  3. 27 10月, 2016 3 次提交
  4. 26 10月, 2016 5 次提交
    • P
      KVM: fix OOPS on flush_work · 36343f6e
      Paolo Bonzini 提交于
      The conversion done by commit 3706feac ("KVM: Remove deprecated
      create_singlethread_workqueue") is broken.  It flushes a single work
      item &irqfd->shutdown instead of all of them, and even worse if there
      is no irqfd on the list then you get a NULL pointer dereference.
      Revert the virt/kvm/eventfd.c part of that patch; to avoid the
      deprecated function, just allocate our own workqueue---it does
      not even have to be unbound---with alloc_workqueue.
      
      Fixes: 3706feacReviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
      Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      36343f6e
    • J
      KVM: s390: Fix STHYI buffer alignment for diag224 · 45c7ee43
      Janosch Frank 提交于
      Diag224 requires a page-aligned 4k buffer to store the name table
      into. kmalloc does not guarantee page alignment, hence we replace it
      with __get_free_page for the buffer allocation.
      
      Cc: stable@vger.kernel.org # v4.8+
      Reported-by: NMichael Holzheu <holzheu@linux.vnet.ibm.com>
      Signed-off-by: NJanosch Frank <frankja@linux.vnet.ibm.com>
      Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
      Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
      45c7ee43
    • J
      KVM: MIPS: Precalculate MMIO load resume PC · e1e575f6
      James Hogan 提交于
      The advancing of the PC when completing an MMIO load is done before
      re-entering the guest, i.e. before restoring the guest ASID. However if
      the load is in a branch delay slot it may need to access guest code to
      read the prior branch instruction. This isn't safe in TLB mapped code at
      the moment, nor in the future when we'll access unmapped guest segments
      using direct user accessors too, as it could read the branch from host
      user memory instead.
      
      Therefore calculate the resume PC in advance while we're still in the
      right context and save it in the new vcpu->arch.io_pc (replacing the no
      longer needed vcpu->arch.pending_load_cause), and restore it on MMIO
      completion.
      
      Fixes: e685c689 ("KVM/MIPS32: Privileged instruction/target branch emulation.")
      Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: "Radim Krčmář <rkrcmar@redhat.com>
      Cc: Ralf Baechle <ralf@linux-mips.org>
      Cc: linux-mips@linux-mips.org
      Cc: kvm@vger.kernel.org
      Cc: <stable@vger.kernel.org> # 3.10.x-
      Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      e1e575f6
    • J
      KVM: MIPS: Make ERET handle ERL before EXL · ede5f3e7
      James Hogan 提交于
      The ERET instruction to return from exception is used for returning from
      exception level (Status.EXL) and error level (Status.ERL). If both bits
      are set however we should be returning from ERL first, as ERL can
      interrupt EXL, for example when an NMI is taken. KVM however checks EXL
      first.
      
      Fix the order of the checks to match the pseudocode in the instruction
      set manual.
      
      Fixes: e685c689 ("KVM/MIPS32: Privileged instruction/target branch emulation.")
      Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: "Radim Krčmář <rkrcmar@redhat.com>
      Cc: Ralf Baechle <ralf@linux-mips.org>
      Cc: linux-mips@linux-mips.org
      Cc: kvm@vger.kernel.org
      Cc: <stable@vger.kernel.org> # 3.10.x-
      Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      ede5f3e7
    • J
      KVM: MIPS: Fix lazy user ASID regenerate for SMP · 9078210e
      James Hogan 提交于
      kvm_mips_check_asids() runs before entering the guest and performs lazy
      regeneration of host ASID for guest usermode, using last_user_gasid to
      track the last guest ASID in the VCPU that was used by guest usermode on
      any host CPU.
      
      last_user_gasid is reset after performing the lazy ASID regeneration on
      the current CPU, and by kvm_arch_vcpu_load() if the host ASID for guest
      usermode is regenerated due to staleness (to cancel outstanding lazy
      ASID regenerations). Unfortunately neither case handles SMP hosts
      correctly:
      
       - When the lazy ASID regeneration is performed it should apply to all
         CPUs (as last_user_gasid does), so reset the ASID on other CPUs to
         zero to trigger regeneration when the VCPU is next loaded on those
         CPUs.
      
       - When the ASID is found to be stale on the current CPU, we should not
         cancel lazy ASID regenerations globally, so drop the reset of
         last_user_gasid altogether here.
      
      Both cases would require a guest ASID change and two host CPU migrations
      (and in the latter case one of the CPUs to start a new ASID cycle)
      before guest usermode could potentially access stale user pages from a
      previously running ASID in the same VCPU.
      
      Fixes: 25b08c7f ("KVM: MIPS: Invalidate TLB by regenerating ASIDs")
      Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: "Radim Krčmář <rkrcmar@redhat.com>
      Cc: Ralf Baechle <ralf@linux-mips.org>
      Cc: linux-mips@linux-mips.org
      Cc: kvm@vger.kernel.org
      Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      9078210e
  5. 24 10月, 2016 6 次提交
    • L
      Linux 4.9-rc2 · 07d9a380
      Linus Torvalds 提交于
      07d9a380
    • L
      Merge tag 'upstream-4.9-rc2' of git://git.infradead.org/linux-ubifs · 5ff93abc
      Linus Torvalds 提交于
      Pull UBI[FS] fixes from Richard Weinberger:
       "This contains fixes for issues in both UBI and UBIFS:
      
         - Fallout from the merge window, refactoring UBI code introduced some
           issues.
      
         - Fixes for an UBIFS readdir bug which can cause getdents() to busy
           loop for ever and a bug in the UBIFS xattr code"
      
      * tag 'upstream-4.9-rc2' of git://git.infradead.org/linux-ubifs:
        ubifs: Abort readdir upon error
        UBI: Fix crash in try_recover_peb()
        ubi: fix swapped arguments to call to ubi_alloc_aeb
        ubifs: Fix xattr_names length in exit paths
        ubifs: Rename ubifs_rename2
      5ff93abc
    • L
      Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · c761923c
      Linus Torvalds 提交于
      Pull ext4 fixes from Ted Ts'o:
       "A few bug fixes and add some missing KERN_CONT annotations"
      
      * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
        ext4: add missing KERN_CONT to a few more debugging uses
        fscrypto: lock inode while setting encryption policy
        ext4: correct endianness conversion in __xattr_check_inode()
        fscrypto: make XTS tweak initialization endian-independent
        ext4: do not advertise encryption support when disabled
        jbd2: fix incorrect unlock on j_list_lock
        ext4: super.c: Update logging style using KERN_CONT
      c761923c
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · a55da8a0
      Linus Torvalds 提交于
      Pull SCSI target fixes from Nicholas Bellinger:
       "Here are the outstanding target-pending fixes for v4.9-rc2.
      
        This includes:
      
         - Fix v4.1.y+ reference leak regression with concurrent TMR
           ABORT_TASK + session shutdown. (Vaibhav Tandon)
      
         - Enable tcm_fc w/ SCF_USE_CPUID to avoid host exchange timeouts
           (Hannes)
      
         - target/user error sense handling fixes. (Andy + MNC + HCH)
      
         - Fix iscsi-target NOP_OUT error path iscsi_cmd descriptor leak
           (Varun)
      
         - Two EXTENDED_COPY SCSI status fixes for ESX VAAI (Dinesh Israni +
           Nixon Vincent)
      
         - Revert a v4.8 residual overflow change, that breaks sg_inq with
           small allocation lengths.
      
        There are a number of folks stress testing the v4.1.y regression fix
        in their environments, and more folks doing iser-target I/O stress
        testing atop recent v4.x.y code.
      
        There is also one v4.2.y+ RCU conversion regression related to
        explicit NodeACL configfs changes, that is still being tracked down"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
        target/tcm_fc: use CPU affinity for responses
        target/tcm_fc: Update debugging statements to match libfc usage
        target/tcm_fc: return detailed error in ft_sess_create()
        target/tcm_fc: print command pointer in debug message
        target: fix potential race window in target_sess_cmd_list_waiting()
        Revert "target: Fix residual overflow handling in target_complete_cmd_with_length"
        target: Don't override EXTENDED_COPY xcopy_pt_cmd SCSI status code
        target: Make EXTENDED_COPY 0xe4 failure return COPY TARGET DEVICE NOT REACHABLE
        target: Re-add missing SCF_ACK_KREF assignment in v4.1.y
        iscsi-target: fix iscsi cmd leak
        iscsi-target: fix spelling mistake "Unsolicitied" -> "Unsolicited"
        target/user: Fix comments to not refer to data ring
        target/user: Return an error if cmd data size is too large
        target/user: Use sense_reason_t in tcmu_queue_cmd_ring
      a55da8a0
    • L
      Merge tag 'hwmon-for-linus-v4.9-rc2' of... · e6995f22
      Linus Torvalds 提交于
      Merge tag 'hwmon-for-linus-v4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
      
      Pull hwmon fixes from Guenter Roeck:
       "Couple of hwmon fixes:
      
        Fix a potential ERR_PTR dereference in max31790 driver, and handle
        temperature readings below 0 in adm9240 driver"
      
      * tag 'hwmon-for-linus-v4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
        hwmon: (max31790) potential ERR_PTR dereference
        hwmon: (adm9240) handle temperature readings below 0
      e6995f22
    • L
      Merge tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmi · 5766e9d2
      Linus Torvalds 提交于
      Pull IPMI updates from Corey Minyard:
       "A small bug fix and a new driver for acting as an IPMI device.
      
        I was on vacation during the merge window (a long vacation) but this
        is a bug fix that should go in and a new driver that shouldn't hurt
        anything.
      
        This has been in linux-next for a month or so"
      
      * tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmi:
        ipmi: fix crash on reading version from proc after unregisted bmc
        ipmi/bt-bmc: remove redundant return value check of platform_get_resource()
        ipmi/bt-bmc: add a dependency on ARCH_ASPEED
        ipmi: Fix ioremap error handling in bt-bmc
        ipmi: add an Aspeed BT IPMI BMC driver
      5766e9d2
  6. 23 10月, 2016 5 次提交