1. 04 Dec, 2015 22 commits
    • Chao Yu's avatar
      f2fs: fix to remove directory inode from dirty list · eb7e813c
      Chao Yu authored
      
      
      If last dirty dentry page was writebacked in reclaim path, we should
      remove its directory inode from global dirty list to avoid unnecessary
      flush for this inode when doing checkpoint.
      Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      eb7e813c
    • Chao Yu's avatar
      f2fs: fix to enable missing ioctl interfaces in ->compat_ioctl · 04ef4b62
      Chao Yu authored
      
      
      In 64-bit kernel f2fs can supports 32-bit ioctl system call by identifying
      encoded code which is converted from 32-bit one to 64-bit one in
      ->compat_ioctl.
      
      When we introduced new interfaces in ->ioctl, we forgot to enable them in
      ->compat_ioctl, so enable them for fixing.
      Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
      [Jaegeuk Kim: fix wrongly added spaces together]
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      04ef4b62
    • Chao Yu's avatar
      f2fs: fix memory leak of kobject in error path of fill_super · 29ba108d
      Chao Yu authored
      
      
      f2fs_sb_info::s_kobj should be released in error path of fill_super,
      otherwise it will lead to memory leak.
      
      This bug was found by kmemleak:
      
      dmesg:
      kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
      
      cat /sys/kernel/debug/kmemleak
      unreferenced object 0xffff8800838dc358 (size 8):
        comm "mount", pid 4154, jiffies 4297482839 (age 1911.412s)
        hex dump (first 8 bytes):
          7a 72 61 6d 31 00 ff ff                          zram1...
        backtrace:
          [<ffffffff817a3668>] kmemleak_alloc+0x28/0x50
          [<ffffffff811dc99f>] __kmalloc_track_caller+0xef/0x1c0
          [<ffffffff8119d1c5>] kstrdup+0x45/0x80
          [<ffffffff8119d228>] kstrdup_const+0x28/0x30
          [<ffffffff813d2333>] kvasprintf_const+0x63/0xa0
          [<ffffffff813c59fc>] kobject_set_name_vargs+0x3c/0xa0
          [<ffffffff813c5a85>] kobject_add_varg+0x25/0x60
          [<ffffffff813c5b13>] kobject_init_and_add+0x53/0x70
          [<ffffffffa07ced19>] f2fs_fill_super+0x9d9/0xc40 [f2fs]
          [<ffffffff811ff0b2>] mount_bdev+0x192/0x1d0
          [<ffffffffa07cd3e5>] f2fs_mount+0x15/0x20 [f2fs]
          [<ffffffff811fec93>] mount_fs+0x43/0x170
          [<ffffffff81220256>] vfs_kern_mount+0x76/0x160
          [<ffffffff812211c8>] do_mount+0x258/0xdc0
          [<ffffffff81221dab>] SyS_mount+0x7b/0xc0
          [<ffffffff817aecd7>] entry_SYSCALL_64_fastpath+0x12/0x6f
      ...
      Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      29ba108d
    • Masanari Iida's avatar
      Doc: f2fs: Fix typos in Documentation/filesystems/f2fs.txt · 4bb9998d
      Masanari Iida authored
      
      
      This patch fix some typos in Documentation/filesystems/f2fs.txt
      Signed-off-by: default avatarMasanari Iida <standby24x7@gmail.com>
      Acked-by: default avatarRandy Dunlap <rdunlap@infradead.org>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      4bb9998d
    • Chao Yu's avatar
      f2fs: support file defragment · d323d005
      Chao Yu authored
      
      
      This patch introduces a new ioctl F2FS_IOC_DEFRAGMENT to support file
      defragment in a specified range of regular file.
      
      This ioctl can be used in very limited workload: if user expects high
      sequential read performance in randomly written file, this interface
      can be used for defragmentation, after that file can be written as
      continuous as possible in the device.
      
      Meanwhile, it has side-effect, it will make holes in segments where
      blocks located originally, so it's better to trigger GC to eliminate
      fragment in segments.
      Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      d323d005
    • Chao Yu's avatar
      f2fs: commit atomic written page in LFS mode · 2da3e027
      Chao Yu authored
      
      
      We should always commit atomic written pages in LFS mode, otherwise data
      will become corrupted if we encounter suddent power cut after partial
      pages committed in IPU mode.
      Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      2da3e027
    • Chao Yu's avatar
      f2fs: report error of f2fs_create_root_stats · 787c7b8c
      Chao Yu authored
      
      
      f2fs_create_root_stats can fail due to no memory, report it to user.
      Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      787c7b8c
    • Linus Torvalds's avatar
      Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm · fb39cbda
      Linus Torvalds authored
      Pull libnvdimm fixes from Dan Williams:
      
       - NFIT parsing regression fixes from Linda.  The nvdimm hot-add
         implementation merged in 4.4-rc1 interpreted the specification in a
         way that breaks actual HPE platforms.  We are also closing the loop
         with the ACPI Working Group to get this clarification added to the
         spec.
      
       - Andy pointed out that his laptop without nvdimm resources is loading
         the e820-nvdimm module by default, fix that up to only load the
         module when an e820-type-12 range is present.
      
      * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
        nfit: Adjust for different _FIT and NFIT headers
        nfit: Fix the check for a successful NFIT merge
        nfit: Account for table size length variation
        libnvdimm, e820: skip module loading when no type-12
      fb39cbda
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · db281766
      Linus Torvalds authored
      Pull ARM KVM fixes from Paolo Bonzini:
      
       - a series of fixes to deal with the aliasing between the sp and xzr
         register
      
       - a fix for the cache flush fix that went in -rc3
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        ARM/arm64: KVM: correct PTE uncachedness check
        arm64: KVM: Get rid of old vcpu_reg()
        arm64: KVM: Correctly handle zero register in system register accesses
        arm64: KVM: Remove const from struct sys_reg_params
        arm64: KVM: Correctly handle zero register during MMIO
      db281766
    • Paolo Bonzini's avatar
      Merge tag 'kvm-arm-for-v4.4-rc4' of... · 09922076
      Paolo Bonzini authored
      Merge tag 'kvm-arm-for-v4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master
      
      KVM/ARM fixes for v4.4-rc4
      
      - A series of fixes to deal with the aliasing between the sp and xzr register
      - A fix for the cache flush fix that went in -rc3
      09922076
    • Linus Torvalds's avatar
      Merge tag 'sound-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 8cdef969
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "This time we've got a larger number of updates, mainly from ASoC
        world.  The only significant LOCs found here are for Realtek codecs,
        where most of changes are quite systematic replacements.
      
        There are also a few fixes in ASoC core side: one is the PM call order
        fix to ensure the DPAM resume working properly.  Another is the proper
        cleanup call after freeing DAPM widgets, and the correction of the
        wrong callback set in topology API.
      
        The rest are a wide range of driver-specific small fixes, including
        HD-audio"
      
      * tag 'sound-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (35 commits)
        ALSA: hda - Add Conexant CX8200 (14f1:2008) codec entry
        ALSA: hda - Correct codec names for 14f1:50f1 and 14f1:50f3
        ALSA: hda - Skip ELD notification during system suspend
        ASoC: core: Change power state before rechecking endpoint
        ASoC: fix kernel-doc warnings in sound/soc/soc-ops.c
        ASoC: rt5645: Add dmi_system_id "Google Terra"
        ASoC: rockchip: Fix incorrect VDW value for 24 bit
        ASoC: fsl: clarify ac97 dependency
        ASoC: Intel: Skylake: fix memory leak
        ASoC: davinci-mcasp: Fix master capture only mode
        ASoC: es8328: Fix shifts for mixer switches
        ASoC: rt5645: Add dmi_system_id "Google Wizpig"
        ASoC: sti: set player private data
        ASoC: sti: rename ST proprietary DT properties
        ASoC: sti: remove wrong error message
        ASoC: Intel: Skylake: Add I2C depends for SKL machine
        ASoC: topology: fix info callback for TLV byte control
        ASoC: rt5670: fix wrong bit def for pll src
        ASoC: nau8825: add pm function
        ASoC: rt5645: Add struct dmi_system_id "Google Edgar" for Chrome OS
        ...
      8cdef969
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · b1007e73
      Linus Torvalds authored
      Pull power management and ACPI fixes from Rafael Wysocki:
       "These fix a recent regression in the ACPI PCI host bridge
        initialization code, clean up some recent changes (generic power
        domains framework, ACPI AML debugger support), fix three older but
        annoying bugs (PCI power management.  generic power domains framework,
        cpufreq) and a build problem (device properties framework), and update
        a stale MAINTAINERS entry (ACPI backlight driver).
      
        Specifics:
      
         - Fix a regression in the ACPI PCI host bridge initialization code
           introduced by the recent consolidation of the host bridge handling
           on x86 and ia64 that forgot to take one special piece of code
           related to NUMA on x86 into account (Liu Jiang).
      
         - Improve the Kconfig help description of the new ACPI AML debugger
           support option to avoid possible confusion (Peter Zijlstra).
      
         - Remove a piece of code in the generic power domains framework that
           should have been removed by one of the recent commits modifying
           that code (Ulf Hansson).
      
         - Reduce the log level of a PCI PM message that generates a lot of
           false-positive log noise for some drivers and improve the message
           itself while at it (Imre Deak).
      
         - Fix the OF-based domain lookup code in the generic power domains
           framework to make it drop references to DT nodes correctly (Eric
           Anholt).
      
         - Prevent the cpufreq core from setting the policy back to the
           default after a CPU offline/online cycle for cpufreq drivers
           providing the ->setpolicy callback (Srinivas Pandruvada).
      
         - Fix a build problem for CONFIG_ACPI unset in the device properties
           framework (Hanjun Guo).
      
         - Fix a stale file path in the ACPI backlight driver entry in
           MAINTAINERS (Dan Carpenter)"
      
      * tag 'pm+acpi-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PM / Domains: Fix bad of_node_put() in failure paths of genpd_dev_pm_attach()
        cpufreq: use last policy after online for drivers with ->setpolicy
        PCI / PM: Tune down retryable runtime suspend error messages
        PM / Domains: Validate cases of a non-bound driver in genpd governor
        MAINTAINERS: ACPI / video: update a file name in drivers/acpi/
        ACPI / property: fix compile error for acpi_node_get_property_reference() when CONFIG_ACPI=n
        x86/PCI/ACPI: Fix regression caused by commit 4d6b4e69
        ACPI: Better describe ACPI_DEBUGGER
      b1007e73
    • Ard Biesheuvel's avatar
      ARM/arm64: KVM: correct PTE uncachedness check · 0de58f85
      Ard Biesheuvel authored
      Commit e6fab544 ("ARM/arm64: KVM: test properly for a PTE's
      uncachedness") modified the logic to test whether a HYP or stage-2
      mapping needs flushing, from [incorrectly] interpreting the page table
      attributes to [incorrectly] checking whether the PFN that backs the
      mapping is covered by host system RAM. The PFN number is part of the
      output of the translation, not the input, so we have to use pte_pfn()
      on the contents of the PTE, not __phys_to_pfn() on the HYP virtual
      address or stage-2 intermediate physical address.
      
      Fixes: e6fab544
      
       ("ARM/arm64: KVM: test properly for a PTE's uncachedness")
      Cc: stable@vger.kernel.org
      Tested-by: default avatarPavel Fedin <p.fedin@samsung.com>
      Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      0de58f85
    • Pavel Fedin's avatar
      arm64: KVM: Get rid of old vcpu_reg() · f6be563a
      Pavel Fedin authored
      
      
      Using oldstyle vcpu_reg() accessor is proven to be inappropriate and
      unsafe on ARM64. This patch converts the rest of use cases to new
      accessors and completely removes vcpu_reg() on ARM64.
      Signed-off-by: default avatarPavel Fedin <p.fedin@samsung.com>
      Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      f6be563a
    • Pavel Fedin's avatar
      arm64: KVM: Correctly handle zero register in system register accesses · 2ec5be3d
      Pavel Fedin authored
      
      
      System register accesses also use zero register for Rt == 31, and
      therefore using it will also result in getting SP value instead. This
      patch makes them also using new accessors, introduced by the previous
      patch. Since register value is no longer directly associated with storage
      inside vCPU context structure, we introduce a dedicated storage for it in
      struct sys_reg_params.
      
      This refactor also gets rid of "massive hack" in kvm_handle_cp_64().
      Signed-off-by: default avatarPavel Fedin <p.fedin@samsung.com>
      Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      2ec5be3d
    • Pavel Fedin's avatar
      arm64: KVM: Remove const from struct sys_reg_params · 3fec037d
      Pavel Fedin authored
      
      
      Further rework is going to introduce a dedicated storage for transfer
      register value in struct sys_reg_params. Before doing this we have to
      remove 'const' modifiers from it in all accessor functions and their
      callers.
      Signed-off-by: default avatarPavel Fedin <p.fedin@samsung.com>
      Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      3fec037d
    • Pavel Fedin's avatar
      arm64: KVM: Correctly handle zero register during MMIO · bc45a516
      Pavel Fedin authored
      
      
      On ARM64 register index of 31 corresponds to both zero register and SP.
      However, all memory access instructions, use ZR as transfer register. SP
      is used only as a base register in indirect memory addressing, or by
      register-register arithmetics, which cannot be trapped here.
      
      Correct emulation is achieved by introducing new register accessor
      functions, which can do special handling for reg_num == 31. These new
      accessors intentionally do not rely on old vcpu_reg() on ARM64, because
      it is to be removed. Since the affected code is shared by both ARM
      flavours, implementations of these accessors are also added to ARM32 code.
      
      This patch fixes setting MMIO register to a random value (actually SP)
      instead of zero by something like:
      
       *((volatile int *)reg) = 0;
      
      compilers tend to generate "str wzr, [xx]" here
      
      [Marc: Fixed 32bit splat]
      Signed-off-by: default avatarPavel Fedin <p.fedin@samsung.com>
      Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      bc45a516
    • Rafael J. Wysocki's avatar
      Merge branches 'pm-domains' and 'pm-cpufreq' · d441fe25
      Rafael J. Wysocki authored
      * pm-domains:
        PM / Domains: Fix bad of_node_put() in failure paths of genpd_dev_pm_attach()
        PM / Domains: Validate cases of a non-bound driver in genpd governor
      
      * pm-cpufreq:
        cpufreq: use last policy after online for drivers with ->setpolicy
      d441fe25
    • Rafael J. Wysocki's avatar
      Merge branches 'acpica', 'acpi-video' and 'device-properties' · 3e5050e6
      Rafael J. Wysocki authored
      * acpica:
        ACPI: Better describe ACPI_DEBUGGER
      
      * acpi-video:
        MAINTAINERS: ACPI / video: update a file name in drivers/acpi/
      
      * device-properties:
        ACPI / property: fix compile error for acpi_node_get_property_reference() when CONFIG_ACPI=n
      3e5050e6
    • Rafael J. Wysocki's avatar
      Merge branches 'acpi-pci' and 'pm-pci' · c09c9dd2
      Rafael J. Wysocki authored
      * acpi-pci:
        x86/PCI/ACPI: Fix regression caused by commit 4d6b4e69
      
      * pm-pci:
        PCI / PM: Tune down retryable runtime suspend error messages
      c09c9dd2
    • Eric Anholt's avatar
      PM / Domains: Fix bad of_node_put() in failure paths of genpd_dev_pm_attach() · 265e2cf6
      Eric Anholt authored
      It looks like these meant to be unreffing the
      of_parse_phandle_with_args() node, since the error paths above it
      don't do of_node_put.  That function returns a new ref in pd_args.np,
      though, not a new ref on dev->of_node.  Also, it would have leaked the
      ref in the success case.
      
      Fixes "ERROR: Bad of_node_put()" on bcm2835 in the -EPROBE_DEFER case.
      
      Fixes: aa42240a
      
       (PM / Domains: Add generic OF-based PM domain look-up)
      Signed-off-by: default avatarEric Anholt <eric@anholt.net>
      Acked-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
      Acked-by: default avatarKevin Hilman <khilman@linaro.org>
      Cc: 3.18+ <stable@vger.kernel.org> # 3.18+
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      265e2cf6
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 071f5d10
      Linus Torvalds authored
      Pull networking fixes from David Miller:
       "A lot of Thanksgiving turkey leftovers accumulated, here goes:
      
         1) Fix bluetooth l2cap_chan object leak, from Johan Hedberg.
      
         2) IDs for some new iwlwifi chips, from Oren Givon.
      
         3) Fix rtlwifi lockups on boot, from Larry Finger.
      
         4) Fix memory leak in fm10k, from Stephen Hemminger.
      
         5) We have a route leak in the ipv6 tunnel infrastructure, fix from
            Paolo Abeni.
      
         6) Fix buffer pointer handling in arm64 bpf JIT,f rom Zi Shen Lim.
      
         7) Wrong lockdep annotations in tcp md5 support, fix from Eric
            Dumazet.
      
         8) Work around some middle boxes which prevent proper handling of TCP
            Fast Open, from Yuchung Cheng.
      
         9) TCP repair can do huge kmalloc() requests, build paged SKBs
            instead.  From Eric Dumazet.
      
        10) Fix msg_controllen overflow in scm_detach_fds, from Daniel
            Borkmann.
      
        11) Fix device leaks on ipmr table destruction in ipv4 and ipv6, from
            Nikolay Aleksandrov.
      
        12) Fix use after free in epoll with AF_UNIX sockets, from Rainer
            Weikusat.
      
        13) Fix double free in VRF code, from Nikolay Aleksandrov.
      
        14) Fix skb leaks on socket receive queue in tipc, from Ying Xue.
      
        15) Fix ifup/ifdown crach in xgene driver, from Iyappan Subramanian.
      
        16) Fix clearing of persistent array maps in bpf, from Daniel
            Borkmann.
      
        17) In TCP, for the cross-SYN case, we don't initialize tp->copied_seq
            early enough.  From Eric Dumazet.
      
        18) Fix out of bounds accesses in bpf array implementation when
            updating elements, from Daniel Borkmann.
      
        19) Fill gaps in RCU protection of np->opt in ipv6 stack, from Eric
            Dumazet.
      
        20) When dumping proxy neigh entries, we have to accomodate NULL
            device pointers properly, from Konstantin Khlebnikov.
      
        21) SCTP doesn't release all ipv6 socket resources properly, fix from
            Eric Dumazet.
      
        22) Prevent underflows of sch->q.qlen for multiqueue packet
            schedulers, also from Eric Dumazet.
      
        23) Fix MAC and unicast list handling in bnxt_en driver, from Jeffrey
            Huang and Michael Chan.
      
        24) Don't actively scan radar channels, from Antonio Quartulli"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (110 commits)
        net: phy: reset only targeted phy
        bnxt_en: Setup uc_list mac filters after resetting the chip.
        bnxt_en: enforce proper storing of MAC address
        bnxt_en: Fixed incorrect implementation of ndo_set_mac_address
        net: lpc_eth: remove irq > NR_IRQS check from probe()
        net_sched: fix qdisc_tree_decrease_qlen() races
        openvswitch: fix hangup on vxlan/gre/geneve device deletion
        ipv4: igmp: Allow removing groups from a removed interface
        ipv6: sctp: implement sctp_v6_destroy_sock()
        arm64: bpf: add 'store immediate' instruction
        ipv6: kill sk_dst_lock
        ipv6: sctp: add rcu protection around np->opt
        net/neighbour: fix crash at dumping device-agnostic proxy entries
        sctp: use GFP_USER for user-controlled kmalloc
        sctp: convert sack_needed and sack_generation to bits
        ipv6: add complete rcu protection around np->opt
        bpf: fix allocation warnings in bpf maps and integer overflow
        mvebu: dts: enable IP checksum with jumbo frames for Armada 38x on Port0
        net: mvneta: enable setting custom TX IP checksum limit
        net: mvneta: fix error path for building skb
        ...
      071f5d10
  2. 03 Dec, 2015 18 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 2873d32f
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "A collection of fixes from this series.  The most important here is a
        regression fix for an issue that some folks would hit in blk-merge.c,
        and the NVMe queue depth limit for the screwed up Apple "nvme"
        controller.
      
        In more detail, this pull request contains:
      
         - a set of fixes for null_blk, including a fix for a few corner cases
           where we could hang the device.  From Arianna and Paolo.
      
         - lightnvm:
              - A build improvement from Keith.
              - Update the qemu pci id detection from Matias.
              - Error handling fixes for leaks and other little fixes from
                Sudip and Wenwei.
      
         - fix from Eric where BLKRRPART would not return EBUSY for whole
           device mounts, only when partitions were mounted.
      
         - fix from Jan Kara, where EOF O_DIRECT reads would return
           negatively.
      
         - remove check for rq_mergeable() when checking limits for cloned
           requests.  The check doesn't make any sense.  It's assuming that
           since NOMERGE is set on the request that we don't have to
           recalculate limits since the request didn't change, but that's not
           true if the request has been redirected.  From Hannes.
      
         - correctly get the bio front segment value set for single segment
           bio's, fixing a BUG() in blk-merge.  From Ming"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        nvme: temporary fix for Apple controller reset
        null_blk: change type of completion_nsec to unsigned long
        null_blk: guarantee device restart in all irq modes
        null_blk: set a separate timer for each command
        blk-merge: fix computing bio->bi_seg_front_size in case of single segment
        direct-io: Fix negative return from dio read beyond eof
        block: Always check queue limits for cloned requests
        lightnvm: missing nvm_lock acquire
        lightnvm: unconverted ppa returned in get_bb_tbl
        lightnvm: refactor and change vendor id for qemu
        lightnvm: do device max sectors boundary check first
        lightnvm: fix ioctl memory leaks
        lightnvm: free memory when gennvm register fails
        lightnvm: Simplify config when disabled
        Return EBUSY from BLKRRPART for mounted whole-dev fs
      2873d32f
    • Linus Torvalds's avatar
      Merge tag 'trace-v4.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · c041f087
      Linus Torvalds authored
      Pull tracing fix from Steven Rostedt:
       "During the merge window I added a new file that is used to filter
        trace events on pids.  It filters all events where only tasks with
        their pid in that file exists.  It also handles the sched_switch and
        sched_wakeup trace events where the current task does not have its pid
        in the file, but the task either being switched to or awaken does.
      
        Unfortunately, I forgot about sched_wakeup_new and sched_waking.  Both
        of these tracepoints use the same class as the sched_wakeup
        tracepoint, and they too should be included in what gets filtered by
        the set_event_pid file"
      
      * tag 'trace-v4.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        tracing: Add sched_wakeup_new and sched_waking tracepoints for pid filter
      c041f087
    • David S. Miller's avatar
      Merge tag 'mac80211-for-davem-2015-12-02' of... · e3c9b1ef
      David S. Miller authored
      Merge tag 'mac80211-for-davem-2015-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
      
      
      
      Johannes Berg says:
      
      ====================
      A small set of fixes for 4.4:
       * fix scanning in mac80211 to not actively scan radar
         channels (from Antonio)
       * fix uninitialized variable in remain-on-channel that
         could lead to treating frame TX as remain-on-channel
         and not sending the frame at all
       * remove NL80211_FEATURE_FULL_AP_CLIENT_STATE again, it
         was broken and needs more work, we'll enable it later
       * fix call_rcu() induced use-after-reset/free in mesh
         (that was suddenly causing issues in certain tests)
       * always request block-ack window size 64 as we found
         some APs will otherwise crash (really ...)
       * fix P2P-Device teardown sequence to avoid restarting
         with uninitialized data
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e3c9b1ef
    • Jérôme Pouiller's avatar
      net: phy: reset only targeted phy · cf18b778
      Jérôme Pouiller authored
      
      
      It is possible to address another chip on same MDIO bus. The case is
      correctly handled for media advertising. It is taken into account
      only if mii_data->phy_id == phydev->addr. However, this condition
      was missing for reset case.
      Signed-off-by: default avatarJérôme Pouiller <jezz@sysmic.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      cf18b778
    • David S. Miller's avatar
      Merge branch 'bnxt_en-fixes' · c5ba5c8a
      David S. Miller authored
      
      
      Michael Chan says:
      
      ====================
      bnxt_en: set mac address and uc_list bug fixes.
      
      Fix ndo_set_mac_address() for PF and VF.
      Re-apply uc_list after chip reset.
      
      v2: Fix compile error if CONFIG_BNXT_SRIOV is not set.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c5ba5c8a
    • Michael Chan's avatar
      bnxt_en: Setup uc_list mac filters after resetting the chip. · b664f008
      Michael Chan authored
      
      
      Call bnxt_cfg_rx_mode() in bnxt_init_chip() to setup uc_list and
      mc_list mac address filters.  Before the patch, uc_list is not
      setup again after chip reset (such as ethtool ring size change)
      and macvlans don't work any more after that.
      
      Modify bnxt_cfg_rx_mode() to return error codes appropriately so
      that the init chip sequence can detect any failures.
      Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b664f008
    • Jeffrey Huang's avatar
      bnxt_en: enforce proper storing of MAC address · bdd4347b
      Jeffrey Huang authored
      
      
      For PF, the bp->pf.mac_addr always holds the permanent MAC
      addr assigned by the HW.  For VF, the bp->vf.mac_addr always
      holds the administrator assigned VF MAC addr. The random
      generated VF MAC addr should never get stored to bp->vf.mac_addr.
      This way, when the VF wants to change the MAC address, we can tell
      if the adminstrator has already set it and disallow the VF from
      changing it.
      
      v2: Fix compile error if CONFIG_BNXT_SRIOV is not set.
      Signed-off-by: default avatarJeffrey Huang <huangjw@broadcom.com>
      Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      bdd4347b
    • Jeffrey Huang's avatar
      bnxt_en: Fixed incorrect implementation of ndo_set_mac_address · 1fc2cfd0
      Jeffrey Huang authored
      
      
      The existing ndo_set_mac_address only copies the new MAC addr
      and didn't set the new MAC addr to the HW. The correct way is
      to delete the existing default MAC filter from HW and add
      the new one. Because of RFS filters are also dependent on the
      default mac filter l2 context, the driver must go thru
      close_nic() to delete the default MAC and RFS filters, then
      open_nic() to set the default MAC address to HW.
      Signed-off-by: default avatarJeffrey Huang <huangjw@broadcom.com>
      Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1fc2cfd0
    • Vladimir Zapolskiy's avatar
      net: lpc_eth: remove irq > NR_IRQS check from probe() · 39198ec9
      Vladimir Zapolskiy authored
      
      
      If the driver is used on an ARM platform with SPARSE_IRQ defined,
      semantics of NR_IRQS is different (minimal value of virtual irqs) and
      by default it is set to 16, see arch/arm/include/asm/irq.h.
      
      This value may be less than the actual number of virtual irqs, which
      may break the driver initialization. The check removal allows to use
      the driver on such a platform, and, if irq controller driver works
      correctly, the check is not needed on legacy platforms.
      
      Fixes a runtime problem:
      
          lpc-eth 31060000.ethernet: error getting resources.
          lpc_eth: lpc-eth: not found (-6).
      Signed-off-by: default avatarVladimir Zapolskiy <vz@mleia.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      39198ec9
    • Eric Dumazet's avatar
      net_sched: fix qdisc_tree_decrease_qlen() races · 4eaf3b84
      Eric Dumazet authored
      qdisc_tree_decrease_qlen() suffers from two problems on multiqueue
      devices.
      
      One problem is that it updates sch->q.qlen and sch->qstats.drops
      on the mq/mqprio root qdisc, while it should not : Daniele
      reported underflows errors :
      [  681.774821] PAX: sch->q.qlen: 0 n: 1
      [  681.774825] PAX: size overflow detected in function qdisc_tree_decrease_qlen net/sched/sch_api.c:769 cicus.693_49 min, count: 72, decl: qlen; num: 0; context: sk_buff_head;
      [  681.774954] CPU: 2 PID: 19 Comm: ksoftirqd/2 Tainted: G           O    4.2.6.201511282239-1-grsec #1
      
      
      [  681.774955] Hardware name: ASUSTeK COMPUTER INC. X302LJ/X302LJ, BIOS X302LJ.202 03/05/2015
      [  681.774956]  ffffffffa9a04863 0000000000000000 0000000000000000 ffffffffa990ff7c
      [  681.774959]  ffffc90000d3bc38 ffffffffa95d2810 0000000000000007 ffffffffa991002b
      [  681.774960]  ffffc90000d3bc68 ffffffffa91a44f4 0000000000000001 0000000000000001
      [  681.774962] Call Trace:
      [  681.774967]  [<ffffffffa95d2810>] dump_stack+0x4c/0x7f
      [  681.774970]  [<ffffffffa91a44f4>] report_size_overflow+0x34/0x50
      [  681.774972]  [<ffffffffa94d17e2>] qdisc_tree_decrease_qlen+0x152/0x160
      [  681.774976]  [<ffffffffc02694b1>] fq_codel_dequeue+0x7b1/0x820 [sch_fq_codel]
      [  681.774978]  [<ffffffffc02680a0>] ? qdisc_peek_dequeued+0xa0/0xa0 [sch_fq_codel]
      [  681.774980]  [<ffffffffa94cd92d>] __qdisc_run+0x4d/0x1d0
      [  681.774983]  [<ffffffffa949b2b2>] net_tx_action+0xc2/0x160
      [  681.774985]  [<ffffffffa90664c1>] __do_softirq+0xf1/0x200
      [  681.774987]  [<ffffffffa90665ee>] run_ksoftirqd+0x1e/0x30
      [  681.774989]  [<ffffffffa90896b0>] smpboot_thread_fn+0x150/0x260
      [  681.774991]  [<ffffffffa9089560>] ? sort_range+0x40/0x40
      [  681.774992]  [<ffffffffa9085fe4>] kthread+0xe4/0x100
      [  681.774994]  [<ffffffffa9085f00>] ? kthread_worker_fn+0x170/0x170
      [  681.774995]  [<ffffffffa95d8d1e>] ret_from_fork+0x3e/0x70
      
      mq/mqprio have their own ways to report qlen/drops by folding stats on
      all their queues, with appropriate locking.
      
      A second problem is that qdisc_tree_decrease_qlen() calls qdisc_lookup()
      without proper locking : concurrent qdisc updates could corrupt the list
      that qdisc_match_from_root() parses to find a qdisc given its handle.
      
      Fix first problem adding a TCQ_F_NOPARENT qdisc flag that
      qdisc_tree_decrease_qlen() can use to abort its tree traversal,
      as soon as it meets a mq/mqprio qdisc children.
      
      Second problem can be fixed by RCU protection.
      Qdisc are already freed after RCU grace period, so qdisc_list_add() and
      qdisc_list_del() simply have to use appropriate rcu list variants.
      
      A future patch will add a per struct netdev_queue list anchor, so that
      qdisc_tree_decrease_qlen() can have more efficient lookups.
      Reported-by: default avatarDaniele Fucini <dfucini@gmail.com>
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Cc: Cong Wang <cwang@twopensource.com>
      Cc: Jamal Hadi Salim <jhs@mojatatu.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4eaf3b84
    • Paolo Abeni's avatar
      openvswitch: fix hangup on vxlan/gre/geneve device deletion · 13175303
      Paolo Abeni authored
      Each openvswitch tunnel vport (vxlan,gre,geneve) holds a reference
      to the underlying tunnel device, but never released it when such
      device is deleted.
      Deleting the underlying device via the ip tool cause the kernel to
      hangup in the netdev_wait_allrefs() loop.
      This commit ensure that on device unregistration dp_detach_port_notify()
      is called for all vports that hold the device reference, properly
      releasing it.
      
      Fixes: 614732ea ("openvswitch: Use regular VXLAN net_device device")
      Fixes: b2acd1dc ("openvswitch: Use regular GRE net_device instead of vport")
      Fixes: 6b001e68
      
       ("openvswitch: Use Geneve device.")
      Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      Acked-by: default avatarFlavio Leitner <fbl@sysclose.org>
      Acked-by: default avatarPravin B Shelar <pshelar@nicira.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      13175303
    • Andrew Lunn's avatar
      ipv4: igmp: Allow removing groups from a removed interface · 4eba7bb1
      Andrew Lunn authored
      When a multicast group is joined on a socket, a struct ip_mc_socklist
      is appended to the sockets mc_list containing information about the
      joined group.
      
      If the interface is hot unplugged, this entry becomes stale. Prior to
      commit 52ad353a
      
       ("igmp: fix the problem when mc leave group") it
      was possible to remove the stale entry by performing a
      IP_DROP_MEMBERSHIP, passing either the old ifindex or ip address on
      the interface. However, this fix enforces that the interface must
      still exist. Thus with time, the number of stale entries grows, until
      sysctl_igmp_max_memberships is reached and then it is not possible to
      join and more groups.
      
      The previous patch fixes an issue where a IP_DROP_MEMBERSHIP is
      performed without specifying the interface, either by ifindex or ip
      address. However here we do supply one of these. So loosen the
      restriction on device existence to only apply when the interface has
      not been specified. This then restores the ability to clean up the
      stale entries.
      Signed-off-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Fixes: 52ad353a
      
       "(igmp: fix the problem when mc leave group")
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4eba7bb1
    • Eric Dumazet's avatar
      ipv6: sctp: implement sctp_v6_destroy_sock() · 602dd62d
      Eric Dumazet authored
      
      
      Dmitry Vyukov reported a memory leak using IPV6 SCTP sockets.
      
      We need to call inet6_destroy_sock() to properly release
      inet6 specific fields.
      Reported-by: default avatarDmitry Vyukov <dvyukov@google.com>
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      602dd62d
    • David S. Miller's avatar
      Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth · 79aecc72
      David S. Miller authored
      
      
      Johan Hedberg says:
      
      ====================
      pull request: bluetooth 2015-12-01
      
      Here's a Bluetooth fix for the 4.4-rc series that fixes a memory leak of
      the Security Manager L2CAP channel that'll happen for every LE
      connection.
      
      Please let me know if there are any issues pulling. Thanks.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      79aecc72
    • Yang Shi's avatar
      arm64: bpf: add 'store immediate' instruction · df849ba3
      Yang Shi authored
      
      
      aarch64 doesn't have native store immediate instruction, such operation
      has to be implemented by the below instruction sequence:
      
      Load immediate to register
      Store register
      Signed-off-by: default avatarYang Shi <yang.shi@linaro.org>
      CC: Zi Shen Lim <zlim.lnx@gmail.com>
      CC: Xi Wang <xi.wang@gmail.com>
      Reviewed-by: default avatarZi Shen Lim <zlim.lnx@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      df849ba3
    • Eric Dumazet's avatar
      ipv6: kill sk_dst_lock · 6bd4f355
      Eric Dumazet authored
      
      
      While testing the np->opt RCU conversion, I found that UDP/IPv6 was
      using a mixture of xchg() and sk_dst_lock to protect concurrent changes
      to sk->sk_dst_cache, leading to possible corruptions and crashes.
      
      ip6_sk_dst_lookup_flow() uses sk_dst_check() anyway, so the simplest
      way to fix the mess is to remove sk_dst_lock completely, as we did for
      IPv4.
      
      __ip6_dst_store() and ip6_dst_store() share same implementation.
      
      sk_setup_caps() being called with socket lock being held or not,
      we have to use sk_dst_set() instead of __sk_dst_set()
      
      Note that I had to move the "np->dst_cookie = rt6_get_cookie(rt);"
      in ip6_dst_store() before the sk_setup_caps(sk, dst) call.
      
      This is because ip6_dst_store() can be called from process context,
      without any lock held.
      
      As soon as the dst is installed in sk->sk_dst_cache, dst can be freed
      from another cpu doing a concurrent ip6_dst_store()
      
      Doing the dst dereference before doing the install is needed to make
      sure no use after free would trigger.
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Reported-by: default avatarDmitry Vyukov <dvyukov@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6bd4f355
    • Eric Dumazet's avatar
      ipv6: sctp: add rcu protection around np->opt · c836a8ba
      Eric Dumazet authored
      This patch completes the work I did in commit 45f6fad8
      
      
      ("ipv6: add complete rcu protection around np->opt"), as I missed
      sctp part.
      
      This simply makes sure np->opt is used with proper RCU locking
      and accessors.
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c836a8ba
    • Konstantin Khlebnikov's avatar
      net/neighbour: fix crash at dumping device-agnostic proxy entries · 6adc5fd6
      Konstantin Khlebnikov authored
      
      
      Proxy entries could have null pointer to net-device.
      Signed-off-by: default avatarKonstantin Khlebnikov <koct9i@gmail.com>
      Fixes: 84920c14
      
       ("net: Allow ipv6 proxies and arp proxies be shown with iproute2")
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6adc5fd6