1. 14 Aug, 2014 26 commits
    • Wei Liu's avatar
      xen-netback: remove loop waiting function · b1252858
      Wei Liu authored
      The original implementation relies on a loop to check if all inflight
      packets are freed. Now we have proper reference counting, there's no
      need to use loop anymore.
      Signed-off-by: default avatarWei Liu <wei.liu2@citrix.com>
      Cc: Ian Campbell <ian.campbell@citrix.com>
      Cc: Zoltan Kiss <zoltan.kiss@citrix.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b1252858
    • Wei Liu's avatar
      xen-netback: don't stop dealloc kthread too early · a64bd934
      Wei Liu authored
      Reference count the number of packets in host stack, so that we don't
      stop the deallocation thread too early. If not, we can end up with
      xenvif_free permanently waiting for deallocation thread to unmap grefs.
      Reported-by: default avatarThomas Leonard <talex5@gmail.com>
      Signed-off-by: default avatarWei Liu <wei.liu2@citrix.com>
      Cc: Ian Campbell <ian.campbell@citrix.com>
      Cc: Zoltan Kiss <zoltan.kiss@citrix.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a64bd934
    • Wei Liu's avatar
      xen-netback: move NAPI add/remove calls · ea2c5e13
      Wei Liu authored
      Originally netif_napi_add was in xenvif_init_queue and netif_napi_del
      was in xenvif_deinit_queue, while kthreads were handled in
      xenvif_connect and xenvif_disconnect. Move netif_napi_add and
      netif_napi_del to xenvif_connect and xenvif_disconnect so that they
      reside together with kthread operations.
      Signed-off-by: default avatarWei Liu <wei.liu2@citrix.com>
      Cc: Ian Campbell <ian.campbell@citrix.com>
      Cc: Zoltan Kiss <zoltan.kiss@citrix.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ea2c5e13
    • David S. Miller's avatar
      Merge branch 'xen-netback-debugfs' · 68809958
      David S. Miller authored
      Wei Liu says:
      
      ====================
      xen-netback: fix debugfs code
      
      This small series fixes two problems in xen-netback debugfs code.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      68809958
    • Wei Liu's avatar
      xen-netback: fix debugfs entry creation · 628fa76b
      Wei Liu authored
      The original code is bogus. The function gets called in a loop which
      leaks entries created in previous rounds.
      Signed-off-by: default avatarWei Liu <wei.liu2@citrix.com>
      Cc: Zoltan Kiss <zoltan.kiss@citrix.com>
      Cc: Ian Campbell <ian.campbell@citrix.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      628fa76b
    • Wei Liu's avatar
      xen-netback: fix debugfs write length check · 5c807005
      Wei Liu authored
      Enlarge buffer size and check input length properly, so that we don't
      misuse -ENOSPC.
      
      Note that command like "kickXXXX" is still allowed, that's one patch for
      another day if we really want to be very strict on this.
      Reported-by: default avatarSeeChen Ng <seechen81@gmail.com>
      Signed-off-by: default avatarWei Liu <wei.liu2@citrix.com>
      Cc: Zoltan Kiss <zoltan.kiss@citrix.com>
      Cc: Ian Campbell <ian.campbell@citrix.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5c807005
    • Willem de Bruijn's avatar
      net-timestamp: fix missing tcp fragmentation cases · 490cc7d0
      Willem de Bruijn authored
      Bytestream timestamps are correlated with a single byte in the skbuff,
      recorded in skb_shinfo(skb)->tskey. When fragmenting skbuffs, ensure
      that the tskey is set for the fragment in which the tskey falls
      (seqno <= tskey < end_seqno).
      
      The original implementation did not address fragmentation in
      tcp_fragment or tso_fragment. Add code to inspect the sequence numbers
      and move both tskey and the relevant tx_flags if necessary.
      Reported-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
      Signed-off-by: default avatarWillem de Bruijn <willemb@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      490cc7d0
    • Willem de Bruijn's avatar
      net-timestamp: fix missing ACK timestamp · 712a7221
      Willem de Bruijn authored
      ACK timestamps are generated in tcp_clean_rtx_queue. The TSO datapath
      can break out early, causing the timestamp code to be skipped. Move
      the code up before the break.
      Reported-by: default avatarDavid S. Miller <davem@davemloft.net>
      
      Also fix a boundary condition: tp->snd_una is the next unacknowledged
      byte and between tests inclusive (a <= b <= c), so generate a an ACK
      timestamp if (prior_snd_una <= tskey <= tp->snd_una - 1).
      Signed-off-by: default avatarWillem de Bruijn <willemb@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      712a7221
    • Libo Chen's avatar
      drivers/net/irda/donauboe.c: convert to module_pci_driver · cd094927
      Libo Chen authored
      Signed-off-by: default avatarLibo Chen <libo.chen@huawei.com>
      Cc: Samuel Ortiz <samuel@sortiz.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      cd094927
    • Maks Naumov's avatar
    • Anish Bhatt's avatar
      libcxgbi/cxgb4i : Fix ipv6 build failure caught with randconfig · 8d21797d
      Anish Bhatt authored
      Previous guard of IS_ENABLED(CONFIG_IPV6) is not sufficient when cxgbi drivers
      are built into kernel but ipv6 is not.
      
      v2: Use Kconfig to disable compiling cxgbi built into kernel when ipv6 is
      compiled as a module
      
      Fixes: e81fbf6c ("libcxgbi:cxgb4i Guard ipv6 code with a config check")
      Fixes: fc8d0590 ("libcxgbi: Add ipv6 api to driver")
      Signed-off-by: default avatarAnish Bhatt <anish@chelsio.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8d21797d
    • Govindarajulu Varadarajan's avatar
      tg3: fix return value in tg3_get_stats64 · 7b31b4de
      Govindarajulu Varadarajan authored
      When tp->hw_stats is 0, tg3_get_stats64 should display previously
      recorded stats. So it returns &tp->net_stats_prev. But the caller,
      dev_get_stats, ignores the return value.
      
      Fix this by assigning tp->net_stats_prev to stats and returning stats.
      Signed-off-by: default avatarGovindarajulu Varadarajan <_govind@gmx.com>
      Acked-by: default avatarPrashant Sreedharan <prashant@broadcom.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7b31b4de
    • Sowmini Varadhan's avatar
      sunvnet: Schedule maybe_tx_wakeup() as a tasklet from ldc_rx path · 1d311ad2
      Sowmini Varadhan authored
      At the tail of vnet_event(), if we hit the maybe_tx_wakeup()
      condition, we try to take the netif_tx_lock() in the
      recv-interrupt-context and can deadlock with dev_watchdog().
      vnet_event() should schedule maybe_tx_wakeup() as a tasklet
      to avoid this deadlock
      Signed-off-by: default avatarSowmini Varadhan <sowmini.varadhan@oracle.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1d311ad2
    • Sowmini Varadhan's avatar
      sunvnet: Do not spin in an infinite loop when vio_ldc_send() returns EAGAIN · adddc32d
      Sowmini Varadhan authored
      ldc_rx -> vnet_rx -> .. -> vnet_walk_rx->vnet_send_ack should not
      spin into an infinite loop waiting  EAGAIN to lift.
      
      The sender could have sent us a burst, and gone to lunch without
      doing any more ldc_read()'s. That should not cause the receiver to
      loop infinitely till soft-lockup kicks in.
      
      Similarly __vnet_tx_trigger should only loop on EAGAIN a finite
      number of times. The caller (vnet_start_xmit()) already has code
      to reset the dring state and bail on errors from __vnet_tx_trigger
      Signed-off-by: default avatarSowmini Varadhan <sowmini.varadhan@oracle.com>
      Acked-by: default avatarRaghuram Kothakota <raghuram.kothakota@oracle.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      adddc32d
    • Sowmini Varadhan's avatar
      sunvnet: Do not ask for an ACK for every dring transmit · 1f6394e3
      Sowmini Varadhan authored
      No need to ask for an ack with every vnet_start_xmit()- the single
      ACK with DRING_STOPPED is sufficient for the protocol, and we free
      the sk_buff in vnet_start_xmit itself, so we dont need an ACK back.
      Signed-off-by: default avatarSowmini Varadhan <sowmini.varadhan@oracle.com>
      Acked-by: default avatarRaghuram Kothakota <raghuram.kothakota@oracle.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1f6394e3
    • chas williams - CONTRACTOR's avatar
      lec: Fix bug introduced by b67bfe0d · 8356f9d5
      chas williams - CONTRACTOR authored
      b67bfe0d (hlist: drop the node
      parameter from iterators) dropped the node parameter from
      iterators which lec_tbl_walk() was using to iterate the list.
      Signed-off-by: default avatarChas Williams <chas@cmf.nrl.navy.mil>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8356f9d5
    • chas williams - CONTRACTOR's avatar
      atm/svc: Fix blocking in wait loop · de713b57
      chas williams - CONTRACTOR authored
      One should not call blocking primitives inside a wait loop, since both
      require task_struct::state to sleep, so the inner will destroy the
      outer state.
      
      sigd_enq() will possibly sleep for alloc_skb().  Move sigd_enq() before
      prepare_to_wait() to avoid sleeping while waiting interruptibly.  You do
      not actually need to call sigd_enq() after the initial prepare_to_wait()
      because we test the termination condition before calling schedule().
      
      Based on suggestions from Peter Zijlstra.
      Signed-off-by: default avatarChas Williams <chas@cmf.n4rl.navy.mil>
      Acked-by: default avatarPeter Zijlstra <peterz@infradead.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      de713b57
    • Stanislaw Gruszka's avatar
      myri10ge: check for DMA mapping errors · 10545937
      Stanislaw Gruszka authored
      On IOMMU systems DMA mapping can fail, we need to check for
      that possibility.
      Signed-off-by: default avatarStanislaw Gruszka <sgruszka@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      10545937
    • Christoph Jaeger's avatar
      openvswitch: Fix memory leak in ovs_vport_alloc() error path · 3791b3f6
      Christoph Jaeger authored
      ovs_vport_alloc() bails out without freeing the memory 'vport' points to.
      
      Picked up by Coverity - CID 1230503.
      
      Fixes: 5cd667b0 ("openvswitch: Allow each vport to have an array of 'port_id's.")
      Signed-off-by: default avatarChristoph Jaeger <cj@linux.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3791b3f6
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · f0094b28
      Linus Torvalds authored
      Pull networking fixes from David Miller:
       "Several networking final fixes and tidies for the merge window:
      
         1) Changes during the merge window unintentionally took away the
            ability to build bluetooth modular, fix from Geert Uytterhoeven.
      
         2) Several phy_node reference count bug fixes from Uwe Kleine-König.
      
         3) Fix ucc_geth build failures, also from Uwe Kleine-König.
      
         4) Fix klog false positivies when netlink messages go to network
            taps, by properly resetting the network header.  Fix from Daniel
            Borkmann.
      
         5) Sizing estimate of VF netlink messages is too small, from Jiri
            Benc.
      
         6) New APM X-Gene SoC ethernet driver, from Iyappan Subramanian.
      
         7) VLAN untagging is erroneously dependent upon whether the VLAN
            module is loaded or not, but there are generic dependencies that
            matter wrt what can be expected as the SKB enters the stack.
            Make the basic untagging generic code, and do it unconditionally.
            From Vlad Yasevich.
      
         8) xen-netfront only has so many slots in it's transmit queue so
            linearize packets that have too many frags.  From Zoltan Kiss.
      
         9) Fix suspend/resume PHY handling in bcmgenet driver, from Florian
            Fainelli"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (55 commits)
        net: bcmgenet: correctly resume adapter from Wake-on-LAN
        net: bcmgenet: update UMAC_CMD only when link is detected
        net: bcmgenet: correctly suspend and resume PHY device
        net: bcmgenet: request and enable main clock earlier
        net: ethernet: myricom: myri10ge: myri10ge.c: Cleaning up missing null-terminate after strncpy call
        xen-netfront: Fix handling packets on compound pages with skb_linearize
        net: fec: Support phys probed from devicetree and fixed-link
        smsc: replace WARN_ON() with WARN_ON_SMP()
        xen-netback: Don't deschedule NAPI when carrier off
        net: ethernet: qlogic: qlcnic: Remove duplicate object file from Makefile
        wan: wanxl: Remove typedefs from struct names
        m68k/atari: EtherNEC - ethernet support (ne)
        net: ethernet: ti: cpmac.c: Cleaning up missing null-terminate after strncpy call
        hdlc: Remove typedefs from struct names
        airo_cs: Remove typedef local_info_t
        atmel: Remove typedef atmel_priv_ioctl
        com20020_cs: Remove typedef com20020_dev_t
        ethernet: amd: Remove typedef local_info_t
        net: Always untag vlan-tagged traffic on input.
        drivers: net: Add APM X-Gene SoC ethernet driver support.
        ...
      f0094b28
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc · 13b102bf
      Linus Torvalds authored
      Pull Sparc fixes from David Miller:
       "Sparc bug fixes, one of which was preventing successful SMP boots with
        mainline"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
        sparc64: Fix pcr_ops initialization and usage bugs.
        sparc64: Do not disable interrupts in nmi_cpu_busy()
        sparc: Hook up seccomp and getrandom system calls.
        sparc: fix decimal printf format specifiers prefixed with 0x
      13b102bf
    • Linus Torvalds's avatar
      Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 81c02a21
      Linus Torvalds authored
      Pull x86/apic updates from Thomas Gleixner:
       "This is a major overhaul to the x86 apic subsystem consisting of the
        following parts:
      
         - Remove obsolete APIC driver abstractions (David Rientjes)
      
         - Use the irqdomain facilities to dynamically allocate IRQs for
           IOAPICs.  This is a prerequisite to enable IOAPIC hotplug support,
           and it also frees up wasted vectors (Jiang Liu)
      
         - Misc fixlets.
      
        Despite the hickup in Ingos previous pull request - caused by the
        missing fixup for the suspend/resume issue reported by Borislav - I
        strongly recommend that this update finds its way into 3.17.  Some
        history for you:
      
        This is preparatory work for physical IOAPIC hotplug.  The first
        attempt to support this was done by Yinghai and I shot it down because
        it just added another layer of obscurity and complexity to the already
        existing mess without tackling the underlying shortcomings of the
        current implementation.
      
        After quite some on- and offlist discussions, I requested that the
        design of this functionality must use generic infrastructure, i.e.
        irq domains, which provide all the mechanisms to dynamically map linux
        interrupt numbers to physical interrupts.
      
        Jiang picked up the idea and did a great job of consolidating the
        existing interfaces to manage the x86 (IOAPIC) interrupt system by
        utilizing irq domains.
      
        The testing in tip, Linux-next and inside of Intel on various machines
        did not unearth any oddities until Borislav exposed it to one of his
        oddball machines.  The issue was resolved quickly, but unfortunately
        the fix fell through the cracks and did not hit the tip tree before
        Ingo sent the pull request.  Not entirely Ingos fault, I also assumed
        that the fix was already merged when Ingo asked me whether he could
        send it.
      
        Nevertheless this work has a proper design, has undergone several
        rounds of review and the final fallout after applying it to tip and
        integrating it into Linux-next has been more than moderate.  It's the
        ground work not only for IOAPIC hotplug, it will also allow us to move
        the lowlevel vector allocation into the irqdomain hierarchy, which
        will benefit other architectures as well.  Patches are posted already,
        but they are on hold for two weeks, see below.
      
        I really appreciate the competence and responsiveness Jiang has shown
        in course of this endavour.  So I'm sure that any fallout of this will
        be addressed in a timely manner.
      
        FYI, I'm vanishing for 2 weeks into my annual kids summer camp kitchen
        duty^Wvacation, while you folks are drooling at KS/LinuxCon :) But HPA
        will have a look at the hopefully zero fallout until I'm back"
      
      * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits)
        x86, irq, PCI: Keep IRQ assignment for PCI devices during suspend/hibernation
        x86/apic/vsmp: Make is_vsmp_box() static
        x86, apic: Remove enable_apic_mode callback
        x86, apic: Remove setup_portio_remap callback
        x86, apic: Remove multi_timer_check callback
        x86, apic: Replace noop_check_apicid_used
        x86, apic: Remove check_apicid_present callback
        x86, apic: Remove mps_oem_check callback
        x86, apic: Remove smp_callin_clear_local_apic callback
        x86, apic: Replace trampoline physical addresses with defaults
        x86, apic: Remove x86_32_numa_cpu_node callback
        x86: intel-mid: Use the new io_apic interfaces
        x86, vsmp: Remove is_vsmp_box() from apic_is_clustered_box()
        x86, irq: Clean up irqdomain transition code
        x86, irq, devicetree: Release IOAPIC pin when PCI device is disabled
        x86, irq, SFI: Release IOAPIC pin when PCI device is disabled
        x86, irq, mpparse: Release IOAPIC pin when PCI device is disabled
        x86, irq, ACPI: Release IOAPIC pin when PCI device is disabled
        x86, irq: Introduce helper functions to release IOAPIC pin
        x86, irq: Simplify the way to handle ISA IRQ
        ...
      81c02a21
    • Linus Torvalds's avatar
      Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d27c0d90
      Linus Torvalds authored
      Pull x86/efix fixes from Peter Anvin:
       "Two EFI-related Kconfig changes, which happen to touch immediately
        adjacent lines in Kconfig and thus collapse to a single patch"
      
      * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/efi: Enforce CONFIG_RELOCATABLE for EFI boot stub
        x86/efi: Fix 3DNow optimization build failure in EFI stub
      d27c0d90
    • Linus Torvalds's avatar
      Merge branch 'x86-xsave-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 7453f33b
      Linus Torvalds authored
      Pull x86/xsave changes from Peter Anvin:
       "This is a patchset to support the XSAVES instruction required to
        support context switch of supervisor-only features in upcoming
        silicon.
      
        This patchset missed the 3.16 merge window, which is why it is based
        on 3.15-rc7"
      
      * 'x86-xsave-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, xsave: Add forgotten inline annotation
        x86/xsaves: Clean up code in xstate offsets computation in xsave area
        x86/xsave: Make it clear that the XSAVE macros use (%edi)/(%rdi)
        Define kernel API to get address of each state in xsave area
        x86/xsaves: Enable xsaves/xrstors
        x86/xsaves: Call booting time xsaves and xrstors in setup_init_fpu_buf
        x86/xsaves: Save xstate to task's xsave area in __save_fpu during booting time
        x86/xsaves: Add xsaves and xrstors support for booting time
        x86/xsaves: Clear reserved bits in xsave header
        x86/xsaves: Use xsave/xrstor for saving and restoring user space context
        x86/xsaves: Use xsaves/xrstors for context switch
        x86/xsaves: Use xsaves/xrstors to save and restore xsave area
        x86/xsaves: Define a macro for handling xsave/xrstor instruction fault
        x86/xsaves: Define macros for xsave instructions
        x86/xsaves: Change compacted format xsave area header
        x86/alternative: Add alternative_input_2 to support alternative with two features and input
        x86/xsaves: Add a kernel parameter noxsaves to disable xsaves/xrstors
      7453f33b
    • Linus Torvalds's avatar
      Merge tag 'metag-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag · fd1cf905
      Linus Torvalds authored
      Pull metag architecture updates from James Hogan:
       "Just a couple of minor static analysis fixes, removal of a NULL check
        that should never happen, and fix an error check where an unsigned
        value was being checked to see if it was negative"
      
      * tag 'metag-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
        metag: cachepart: Fix failure check
        metag: hugetlbpage: Remove null pointer checks that could never happen
      fd1cf905
    • Linus Torvalds's avatar
      Merge tag 'nfs-for-3.17-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs · 06b8ab55
      Linus Torvalds authored
      Pull NFS client updates from Trond Myklebust:
       "Highlights include:
      
         - stable fix for a bug in nfs3_list_one_acl()
         - speed up NFS path walks by supporting LOOKUP_RCU
         - more read/write code cleanups
         - pNFS fixes for layout return on close
         - fixes for the RCU handling in the rpcsec_gss code
         - more NFS/RDMA fixes"
      
      * tag 'nfs-for-3.17-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (79 commits)
        nfs: reject changes to resvport and sharecache during remount
        NFS: Avoid infinite loop when RELEASE_LOCKOWNER getting expired error
        SUNRPC: remove all refcounting of groupinfo from rpcauth_lookupcred
        NFS: fix two problems in lookup_revalidate in RCU-walk
        NFS: allow lockless access to access_cache
        NFS: teach nfs_lookup_verify_inode to handle LOOKUP_RCU
        NFS: teach nfs_neg_need_reval to understand LOOKUP_RCU
        NFS: support RCU_WALK in nfs_permission()
        sunrpc/auth: allow lockless (rcu) lookup of credential cache.
        NFS: prepare for RCU-walk support but pushing tests later in code.
        NFS: nfs4_lookup_revalidate: only evaluate parent if it will be used.
        NFS: add checks for returned value of try_module_get()
        nfs: clear_request_commit while holding i_lock
        pnfs: add pnfs_put_lseg_async
        pnfs: find swapped pages on pnfs commit lists too
        nfs: fix comment and add warn_on for PG_INODE_REF
        nfs: check wait_on_bit_lock err in page_group_lock
        sunrpc: remove "ec" argument from encrypt_v2 operation
        sunrpc: clean up sparse endianness warnings in gss_krb5_wrap.c
        sunrpc: clean up sparse endianness warnings in gss_krb5_seal.c
        ...
      06b8ab55
  2. 13 Aug, 2014 4 commits
    • Linus Torvalds's avatar
      Merge tag 'xfs-for-linus-3.17-rc1' of git://oss.sgi.com/xfs/xfs · dc1cc851
      Linus Torvalds authored
      Pull xfs update from Dave Chinner:
       "This update contains:
         - conversion of the XFS core to pass negative error numbers
         - restructing of core XFS code that is shared with userspace to
           fs/xfs/libxfs
         - introduction of sysfs interface for XFS
         - bulkstat refactoring
         - demand driven speculative preallocation removal
         - XFS now always requires 64 bit sectors to be configured
         - metadata verifier changes to ensure CRCs are calculated during log
           recovery
         - various minor code cleanups
         - miscellaneous bug fixes
      
        The diffstat is kind of noisy because of the restructuring of the code
        to make kernel/userspace code sharing simpler, along with the XFS wide
        change to use the standard negative error return convention (at last!)"
      
      * tag 'xfs-for-linus-3.17-rc1' of git://oss.sgi.com/xfs/xfs: (45 commits)
        xfs: fix coccinelle warnings
        xfs: flush both inodes in xfs_swap_extents
        xfs: fix swapext ilock deadlock
        xfs: kill xfs_vnode.h
        xfs: kill VN_MAPPED
        xfs: kill VN_CACHED
        xfs: kill VN_DIRTY()
        xfs: dquot recovery needs verifiers
        xfs: quotacheck leaves dquot buffers without verifiers
        xfs: ensure verifiers are attached to recovered buffers
        xfs: catch buffers written without verifiers attached
        xfs: avoid false quotacheck after unclean shutdown
        xfs: fix rounding error of fiemap length parameter
        xfs: introduce xfs_bulkstat_ag_ichunk
        xfs: require 64-bit sector_t
        xfs: fix uflags detection at xfs_fs_rm_xquota
        xfs: remove XFS_IS_OQUOTA_ON macros
        xfs: tidy up xfs_set_inode32
        xfs: allow inode allocations in post-growfs disk space
        xfs: mark xfs_qm_quotacheck as static
        ...
      dc1cc851
    • Linus Torvalds's avatar
      Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs · cec99709
      Linus Torvalds authored
      Pull quota, reiserfs, UDF updates from Jan Kara:
       "Scalability improvements for quota, a few reiserfs fixes, and couple
        of misc cleanups (udf, ext2)"
      
      * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
        reiserfs: Fix use after free in journal teardown
        reiserfs: fix corruption introduced by balance_leaf refactor
        udf: avoid redundant memcpy when writing data in ICB
        fs/udf: re-use hex_asc_upper_{hi,lo} macros
        fs/quota: kernel-doc warning fixes
        udf: use linux/uaccess.h
        fs/ext2/super.c: Drop memory allocation cast
        quota: remove dqptr_sem
        quota: simplify remove_inode_dquot_ref()
        quota: avoid unnecessary dqget()/dqput() calls
        quota: protect Q_GETFMT by dqonoff_mutex
      cec99709
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client · 8d2d441a
      Linus Torvalds authored
      Pull Ceph updates from Sage Weil:
       "There is a lot of refactoring and hardening of the libceph and rbd
        code here from Ilya that fix various smaller bugs, and a few more
        important fixes with clone overlap.  The main fix is a critical change
        to the request_fn handling to not sleep that was exposed by the recent
        mutex changes (which will also go to the 3.16 stable series).
      
        Yan Zheng has several fixes in here for CephFS fixing ACL handling,
        time stamps, and request resends when the MDS restarts.
      
        Finally, there are a few cleanups from Himangi Saraogi based on
        Coccinelle"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (39 commits)
        libceph: set last_piece in ceph_msg_data_pages_cursor_init() correctly
        rbd: remove extra newlines from rbd_warn() messages
        rbd: allocate img_request with GFP_NOIO instead GFP_ATOMIC
        rbd: rework rbd_request_fn()
        ceph: fix kick_requests()
        ceph: fix append mode write
        ceph: fix sizeof(struct tYpO *) typo
        ceph: remove redundant memset(0)
        rbd: take snap_id into account when reading in parent info
        rbd: do not read in parent info before snap context
        rbd: update mapping size only on refresh
        rbd: harden rbd_dev_refresh() and callers a bit
        rbd: split rbd_dev_spec_update() into two functions
        rbd: remove unnecessary asserts in rbd_dev_image_probe()
        rbd: introduce rbd_dev_header_info()
        rbd: show the entire chain of parent images
        ceph: replace comma with a semicolon
        rbd: use rbd_segment_name_free() instead of kfree()
        ceph: check zero length in ceph_sync_read()
        ceph: reset r_resend_mds after receiving -ESTALE
        ...
      8d2d441a
    • Linus Torvalds's avatar
      Merge tag 'upstream-3.17-rc1' of git://git.infradead.org/linux-ubifs · 89838b80
      Linus Torvalds authored
      Pull UBI/UBIFS changes from Artem Bityutskiy:
       "No significant changes, mostly small fixes here and there.  The more
        important fixes are:
      
         - UBI deleted list items while iterating the list with
           'list_for_each_entry'
         - The UBI block driver did not work properly with very large UBI
           volumes"
      
      * tag 'upstream-3.17-rc1' of git://git.infradead.org/linux-ubifs: (21 commits)
        UBIFS: Add log overlap assertions
        Revert "UBIFS: add a log overlap assertion"
        UBI: bugfix in ubi_wl_flush()
        UBI: block: Avoid disk size integer overflow
        UBI: block: Set disk_capacity out of the mutex
        UBI: block: Make ubiblock_resize return something
        UBIFS: add a log overlap assertion
        UBIFS: remove unnecessary check
        UBIFS: remove mst_mutex
        UBIFS: kernel-doc warning fix
        UBI: init_volumes: Ignore volumes with no LEBs
        UBIFS: replace seq_printf by seq_puts
        UBIFS: replace count*size kzalloc by kcalloc
        UBIFS: kernel-doc warning fix
        UBIFS: fix error path in create_default_filesystem()
        UBIFS: fix spelling of "scanned"
        UBIFS: fix some comments
        UBIFS: remove useless @ecc in struct ubifs_scan_leb
        UBIFS: remove useless statements
        UBIFS: Add missing break statements in dbg_chk_pnode()
        ...
      89838b80
  3. 12 Aug, 2014 3 commits
    • Jan Kara's avatar
      reiserfs: Fix use after free in journal teardown · 01777836
      Jan Kara authored
      If do_journal_release() races with do_journal_end() which requeues
      delayed works for transaction flushing, we can leave work items for
      flushing outstanding transactions queued while freeing them. That
      results in use after free and possible crash in run_timers_softirq().
      
      Fix the problem by not requeueing works if superblock is being shut down
      (MS_ACTIVE not set) and using cancel_delayed_work_sync() in
      do_journal_release().
      
      CC: stable@vger.kernel.org
      Signed-off-by: default avatarJan Kara <jack@suse.cz>
      01777836
    • David S. Miller's avatar
      sparc64: Fix pcr_ops initialization and usage bugs. · 8bccf5b3
      David S. Miller authored
      Christopher reports that perf_event_print_debug() can crash in uniprocessor
      builds.  The crash is due to pcr_ops being NULL.
      
      This happens because pcr_arch_init() is only invoked by smp_cpus_done() which
      only executes in SMP builds.
      
      init_hw_perf_events() is closely intertwined with pcr_ops being setup properly,
      therefore:
      
      1) Call pcr_arch_init() early on from init_hw_perf_events(), instead of
         from smp_cpus_done().
      
      2) Do not hook up a PMU type if pcr_ops is NULL after pcr_arch_init().
      
      3) Move init_hw_perf_events to a later initcall so that it we will be
         sure to invoke pcr_arch_init() after all cpus are brought up.
      
      Finally, guard the one naked sequence of pcr_ops dereferences in
      __global_pmu_self() with an appropriate NULL check.
      Reported-by: default avatarChristopher Alexander Tobias Schulze <cat.schulze@alice-dsl.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8bccf5b3
    • David S. Miller's avatar
      sparc64: Do not disable interrupts in nmi_cpu_busy() · 58556104
      David S. Miller authored
      nmi_cpu_busy() is a SMP function call that just makes sure that all of the
      cpus are spinning using cpu cycles while the NMI test runs.
      
      It does not need to disable IRQs because we just care about NMIs executing
      which will even with 'normal' IRQs disabled.
      
      It is not legal to enable hard IRQs in a SMP cross call, in fact this bug
      triggers the BUG check in irq_work_run_list():
      
      	BUG_ON(!irqs_disabled());
      
      Because now irq_work_run() is invoked from the tail of
      generic_smp_call_function_single_interrupt().
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      58556104
  4. 11 Aug, 2014 7 commits
    • David S. Miller's avatar
      Merge branch 'bcmgenet' · 61dac43e
      David S. Miller authored
      Florian Fainelli says:
      
      ====================
      net: bcmgenet: Wake-on-LAN and suspend fixes
      
      This patch series fixes some mistakes that were introduced during the driver
      changes adding support suspend/resume and Wake-on-LAN.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      61dac43e
    • Florian Fainelli's avatar
      net: bcmgenet: correctly resume adapter from Wake-on-LAN · 98bb7399
      Florian Fainelli authored
      In case we configured the adapter to be a wake up source from
      Wake-on-LAN, but we never actually woke up using Wake-on-LAN, we will
      leave the adapter in MagicPacket matching mode, which prevents any other
      type of packets from reaching the RX engine. Fix this by calling
      bcmgenet_power_up() with GENET_POWER_WOL_MAGIC to restore the adapter
      configuration in bcmgenet_resume().
      
      The second problem we had was an imbalanced clock disabling in
      bcmgenet_wol_resume(), the Wake-on-LAN slow clock is only enabled in
      bcmgenet_suspend() if we configured Wake-on-LAN, yet we unconditionally
      disabled the clock in bcmgenet_wol_resume().
      
      Fixes: 8c90db72 ("net: bcmgenet: suspend and resume from Wake-on-LAN")
      Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      98bb7399
    • Florian Fainelli's avatar
      net: bcmgenet: update UMAC_CMD only when link is detected · c677ba8b
      Florian Fainelli authored
      When we bring the interface down, phy_stop() will schedule the PHY state
      machine to call our link adjustment callback. By the time we do so, we
      may have clock gated off the GENET hardware block, and this will cause
      bus errors to happen in bcmgenet_mii_setup():
      
      Make sure that we only touch the UMAC_CMD register when there is an
      actual link. This is safe to do for two reasons:
      
      - updating the Ethernet MAC registers only make sense when a physical
        link is present
      - the PHY library state machine first set phydev->link = 0 before
        invoking phydev->adjust_link in the PHY_HALTED case
      
      Fixes: 24052408 ("net: bcmgenet: only update UMAC_CMD if something changed")
      Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c677ba8b
    • Florian Fainelli's avatar
      net: bcmgenet: correctly suspend and resume PHY device · cc013fb4
      Florian Fainelli authored
      Make sure that we properly suspend and resume the PHY device when we
      enter low power modes. We had two calls to bcmgenet_mii_reset() which
      will issue a software-reset to the PHY without using the PHY library,
      get rid of them since they are completely bogus and mess up with the PHY
      library state. Make sure that we reset the PHY library cached values
      (link, pause and duplex) to allow the link adjustment callback to be
      invoked when needed.
      
      Fixes: b6e978e5 ("net: bcmgenet: add suspend/resume callbacks")
      Fixes: 1c1008c7 ("net: bcmgenet: add main driver file")
      Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      cc013fb4
    • Florian Fainelli's avatar
      net: bcmgenet: request and enable main clock earlier · e4a60a93
      Florian Fainelli authored
      bcmgenet_set_hw_params() will read the hardware version and compare it
      with the one we are getting from Device Tree. Due to the clock being
      enabled too late, bcmgenet_set_hw_params() will cause bus errors since
      the GENET hardware block is still gated off by the time
      bcmgenet_set_hw_params() is called, this will also make us fail the
      version check since we will read the value 0 from the hardware.
      
      Fix this by requesting the clock before the first piece of code that
      needs to access hardware register.
      
      Fixes: 1c1008c7 ("net: bcmgenet: add main driver file")
      Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e4a60a93
    • Rickard Strandqvist's avatar
      8dff81e8
    • Zoltan Kiss's avatar
      xen-netfront: Fix handling packets on compound pages with skb_linearize · 97a6d1bb
      Zoltan Kiss authored
      There is a long known problem with the netfront/netback interface: if the guest
      tries to send a packet which constitues more than MAX_SKB_FRAGS + 1 ring slots,
      it gets dropped. The reason is that netback maps these slots to a frag in the
      frags array, which is limited by size. Having so many slots can occur since
      compound pages were introduced, as the ring protocol slice them up into
      individual (non-compound) page aligned slots. The theoretical worst case
      scenario looks like this (note, skbs are limited to 64 Kb here):
      linear buffer: at most PAGE_SIZE - 17 * 2 bytes, overlapping page boundary,
      using 2 slots
      first 15 frags: 1 + PAGE_SIZE + 1 bytes long, first and last bytes are at the
      end and the beginning of a page, therefore they use 3 * 15 = 45 slots
      last 2 frags: 1 + 1 bytes, overlapping page boundary, 2 * 2 = 4 slots
      Although I don't think this 51 slots skb can really happen, we need a solution
      which can deal with every scenario. In real life there is only a few slots
      overdue, but usually it causes the TCP stream to be blocked, as the retry will
      most likely have the same buffer layout.
      This patch solves this problem by linearizing the packet. This is not the
      fastest way, and it can fail much easier as it tries to allocate a big linear
      area for the whole packet, but probably easier by an order of magnitude than
      anything else. Probably this code path is not touched very frequently anyway.
      Signed-off-by: default avatarZoltan Kiss <zoltan.kiss@citrix.com>
      Cc: Wei Liu <wei.liu2@citrix.com>
      Cc: Ian Campbell <Ian.Campbell@citrix.com>
      Cc: Paul Durrant <paul.durrant@citrix.com>
      Cc: netdev@vger.kernel.org
      Cc: linux-kernel@vger.kernel.org
      Cc: xen-devel@lists.xenproject.org
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      97a6d1bb