1. 02 5月, 2015 2 次提交
    • M
      ipv6: Consider RTF_CACHE when searching the fib6 tree · 1f56a01f
      Martin KaFai Lau 提交于
      It is a prep work for the later bug-fix patch which will stop /128 route
      from disappearing after pmtu update.
      
      The later bug-fix patch will allow a /128 route and its RTF_CACHE clone
      both exist at the same fib6_node.  To do this, we need to prepare the
      existing fib6 tree search to expect RTF_CACHE for /128 route.
      
      Note that the fn->leaf is sorted by rt6i_metric.  Hence,
      RTF_CACHE (if there is any) is always at the front.  This property
      leads to the following:
      
      1. When doing ip6_route_del(), it should honor the RTF_CACHE flag which
         the caller is used to ask for deleting clone or non-clone.
         The rtm_to_fib6_config() should also check the RTM_F_CLONED and
         then set RTF_CACHE accordingly so that:
         - 'ip -6 r del...' will make ip6_route_del() to delete a route
           and all its clones. Note that its clones is flushed by fib6_del()
         - 'ip -6 r flush table cache' will make ip6_route_del() to
            only delete clone(s).
      
      2. Exclude RTF_CACHE from addrconf_get_prefix_route() which
         should not configure on a cloned route.
      
      3. No change is need for rt6_device_match() since it currently could
         return a RTF_CACHE clone route, so the later bug-fix patch will not
         affect it.
      Signed-off-by: NMartin KaFai Lau <kafai@fb.com>
      Reviewed-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
      Cc: Steffen Klassert <steffen.klassert@secunet.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1f56a01f
    • E
      ipv4: speedup ip_idents_reserve() · 355b590c
      Eric Dumazet 提交于
      Under stress, ip_idents_reserve() is accessing a contended
      cache line twice, with non optimal MESI transactions.
      
      If we place timestamps in separate location, we reduce this
      pressure by ~50% and allow atomic_add_return() to issue
      a Request for Ownership.
      Signed-off-by: NEric Dumazet <edumazet@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      355b590c
  2. 01 5月, 2015 12 次提交
  3. 30 4月, 2015 6 次提交
  4. 28 4月, 2015 6 次提交
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 2decb268
      Linus Torvalds 提交于
      Pull networking fixes from David Miller:
      
       1) mlx4 doesn't check fully for supported valid RSS hash function, fix
          from Amir Vadai
      
       2) Off by one in ibmveth_change_mtu(), from David Gibson
      
       3) Prevent altera chip from reporting false error interrupts in some
          circumstances, from Chee Nouk Phoon
      
       4) Get rid of that stupid endless loop trying to allocate a FIN packet
          in TCP, and in the process kill deadlocks.  From Eric Dumazet
      
       5) Fix get_rps_cpus() crash due to wrong invalid-cpu value, also from
          Eric Dumazet
      
       6) Fix two bugs in async rhashtable resizing, from Thomas Graf
      
       7) Fix topology server listener socket namespace bug in TIPC, from Ying
          Xue
      
       8) Add some missing HAS_DMA kconfig dependencies, from Geert
          Uytterhoeven
      
       9) bgmac driver intends to force re-polling but does so by returning
          the wrong value from it's ->poll() handler.  Fix from Rafał Miłecki
      
      10) When the creater of an rhashtable configures a max size for it,
          don't bark in the logs and drop insertions when that is exceeded.
          Fix from Johannes Berg
      
      11) Recover from out of order packets in ppp mppe properly, from Sylvain
          Rochet
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
        bnx2x: really disable TPA if 'disable_tpa' option is set
        net:treewide: Fix typo in drivers/net
        net/mlx4_en: Prevent setting invalid RSS hash function
        mdio-mux-gpio: use new gpiod_get_array and gpiod_put_array functions
        netfilter; Add some missing default cases to switch statements in nft_reject.
        ppp: mppe: discard late packet in stateless mode
        ppp: mppe: sanity error path rework
        net/bonding: Make DRV macros private
        net: rfs: fix crash in get_rps_cpus()
        altera tse: add support for fixed-links.
        pxa168: fix double deallocation of managed resources
        net: fix crash in build_skb()
        net: eth: altera: Resolve false errors from MSGDMA to TSE
        ehea: Fix memory hook reference counting crashes
        net/tg3: Release IRQs on permanent error
        net: mdio-gpio: support access that may sleep
        inet: fix possible panic in reqsk_queue_unlink()
        rhashtable: don't attempt to grow when at max_size
        bgmac: fix requests for extra polling calls from NAPI
        tcp: avoid looping in tcp_send_fin()
        ...
      2decb268
    • M
      bnx2x: really disable TPA if 'disable_tpa' option is set · 22a8f237
      Michal Schmidt 提交于
      bnx2x's 'disable_tpa=1' module option is not respected properly and TPA
      (transparent packet aggregation) remains enabled. Even though the
      module option causes LRO to be disabled, TPA is enabled in GRO mode.
      
      Additionally, disabling GRO via ethtool then has no effect. One can
      still observe tpa_* statistics increase and large packets being received
      in tcpdump.
      
      The bug was an unintended consequence of commit aebf6244 "bnx2x: Be
      more forgiving toward SW GRO".
      
      Fix it by following the bp->disable_tpa flag when initializing fp's.
      Signed-off-by: NMichal Schmidt <mschmidt@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      22a8f237
    • M
      net:treewide: Fix typo in drivers/net · 94435f76
      Masanari Iida 提交于
      This patch fix spelling typo in printk.
      Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      94435f76
    • A
      net/mlx4_en: Prevent setting invalid RSS hash function · b3706909
      Amir Vadai 提交于
      mlx4_en_check_rxfh_func() was checking for hardware support before
      setting a known RSS hash function, but didn't do any check before
      setting unknown RSS hash function. Need to make it fail on such values.
      In this occasion, moved the actual setting of the new value from the
      check function into mlx4_en_set_rxfh().
      
      Fixes: 947cbb0a ("net/mlx4_en: Support for configurable RSS hash function")
      Signed-off-by: NAmir Vadai <amirv@mellanox.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      b3706909
    • R
      mdio-mux-gpio: use new gpiod_get_array and gpiod_put_array functions · 33df10e2
      Rojhalat Ibrahim 提交于
      Use the new gpiod_get_array and gpiod_put_array functions
      (added to mainline in the v4.1 merge window) for obtaining and
      disposing of GPIO descriptors.
      
      Cc: David Miller <davem@davemloft.net>
      Cc: Linus Walleij <linus.walleij@linaro.org>
      Signed-off-by: NRojhalat Ibrahim <imr@rtschenk.de>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      33df10e2
    • D
      netfilter; Add some missing default cases to switch statements in nft_reject. · 129d23a5
      David S. Miller 提交于
      This fixes:
      
      ====================
      net/netfilter/nft_reject.c: In function ‘nft_reject_dump’:
      net/netfilter/nft_reject.c:61:2: warning: enumeration value ‘NFT_REJECT_TCP_RST’ not handled in switch [-Wswitch]
        switch (priv->type) {
        ^
      net/netfilter/nft_reject.c:61:2: warning: enumeration value ‘NFT_REJECT_ICMPX_UNREACH’ not handled in switch [-Wswi\
      tch]
      net/netfilter/nft_reject_inet.c: In function ‘nft_reject_inet_dump’:
      net/netfilter/nft_reject_inet.c:105:2: warning: enumeration value ‘NFT_REJECT_TCP_RST’ not handled in switch [-Wswi\
      tch]
        switch (priv->type) {
        ^
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      129d23a5
  5. 27 4月, 2015 14 次提交
    • D
      Merge branch 'ppp_mppe_desync' · 8e9b29cc
      David S. Miller 提交于
      Sylvain Rochet says:
      
      ====================
      ppp: mppe: fixes MPPE desync on links which don't guarantee packet ordering
      
      I am currently having an issue with PPP over L2TP (UDP) and MPPE in
      stateless mode (default mode), UDP does not guarantee packet ordering so
      we might get out of order packet. MPPE needs to be continuously synched
      so we should drop late UDP packet.
      
      I added a printk on the number of time we rekeyed in MPPE decompressor,
      this is what we currently have if we receive a slightly out of order UDP
      packet:
      
      [1731001.049206] mppe_decompress[1]: ccount 1559
      [1731001.049216] mppe_decompress[1]: rekeyed 1 times
      
      [1731001.049228] mppe_decompress[1]: ccount 1560
      [1731001.049232] mppe_decompress[1]: rekeyed 1 times
      
      [1731001.050170] mppe_decompress[1]: ccount 1562
      [1731001.050182] mppe_decompress[1]: rekeyed 2 times
      
      [1731001.050191] mppe_decompress[1]: ccount 1561
      [1731001.062576] mppe_decompress[1]: rekeyed 4095 times
                                                   ^^^^
      This is obviously wrong, we missed packet 1561 and we already rekeyed 2
      times for 1562 we previously received, we can't recover the decryption
      key we need for 1561, we should drop it instead of rekeying 4095 times.
      
      This patch series drop any packet with are not within the 4096/2 forward
      window.
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8e9b29cc
    • S
      ppp: mppe: discard late packet in stateless mode · 03654763
      Sylvain Rochet 提交于
      When PPP is used over a link which does not guarantee packet ordering,
      we might get late MPPE packets. This is a problem because MPPE must be
      kept synchronized and the current implementation does not drop them and
      rekey 4095 times instead of 0, which is wrong.
      
      In order to prevent rekeying about a whole count space times (~ 4095
      times), drop packets which are not within the forward 4096/2 window and
      increase sanity error counter.
      Signed-off-by: NSylvain Rochet <sylvain.rochet@finsecur.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      03654763
    • S
      ppp: mppe: sanity error path rework · 32530189
      Sylvain Rochet 提交于
      We are going to need sanity error path a little further, rework to be
      able to use the sanity error path anywhere in decompressor.
      Signed-off-by: NSylvain Rochet <sylvain.rochet@finsecur.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      32530189
    • M
      net/bonding: Make DRV macros private · 73b5a6f2
      Matan Barak 提交于
      The bonding modules currently defines four macros with
      general names that pollute the global namespace:
      DRV_VERSION
      DRV_RELDATE
      DRV_NAME
      DRV_DESCRIPTION
      
      Fixing that by defining a private bonding_priv.h
      header files which includes those defines.
      Signed-off-by: NMatan Barak <matanb@mellanox.com>
      Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      73b5a6f2
    • L
      Linux 4.1-rc1 · b787f68c
      Linus Torvalds 提交于
      b787f68c
    • A
      x86_64, asm: Work around AMD SYSRET SS descriptor attribute issue · 61f01dd9
      Andy Lutomirski 提交于
      AMD CPUs don't reinitialize the SS descriptor on SYSRET, so SYSRET with
      SS == 0 results in an invalid usermode state in which SS is apparently
      equal to __USER_DS but causes #SS if used.
      
      Work around the issue by setting SS to __KERNEL_DS __switch_to, thus
      ensuring that SYSRET never happens with SS set to NULL.
      
      This was exposed by a recent vDSO cleanup.
      
      Fixes: e7d6eefa x86/vdso32/syscall.S: Do not load __USER32_DS to %ss
      Signed-off-by: NAndy Lutomirski <luto@kernel.org>
      Cc: Peter Anvin <hpa@zytor.com>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Denys Vlasenko <vda.linux@googlemail.com>
      Cc: Brian Gerst <brgerst@gmail.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      61f01dd9
    • L
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 1190944f
      Linus Torvalds 提交于
      Pull intel drm fixes from Dave Airlie.
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        drm/i915: vlv: fix save/restore of GFX_MAX_REQ_COUNT reg
        drm/i915: Workaround to avoid lite restore with HEAD==TAIL
        drm/i915: cope with large i2c transfers
      1190944f
    • L
      Merge git://git.infradead.org/intel-iommu · 9f86262d
      Linus Torvalds 提交于
      Pull intel iommu updates from David Woodhouse:
       "This lays a little of the groundwork for upcoming Shared Virtual
        Memory support — fixing some bogus #defines for capability bits and
        adding the new ones, and starting to use the new wider page tables
        where we can, in anticipation of actually filling in the new fields
        therein.
      
        It also allows graphics devices to be assigned to VM guests again.
        This got broken in 3.17 by disallowing assignment of RMRR-afflicted
        devices.  Like USB, we do understand why there's an RMRR for graphics
        devices — and unlike USB, it's actually sane.  So we can make an
        exception for graphics devices, just as we do USB controllers.
      
        Finally, tone down the warning about the X2APIC_OPT_OUT bit, due to
        persistent requests.  X2APIC_OPT_OUT was added to the spec as a nasty
        hack to allow broken BIOSes to forbid us from using X2APIC when they
        do stupid and invasive things and would break if we did.
      
        Someone noticed that since Windows doesn't have full IOMMU support for
        DMA protection, setting the X2APIC_OPT_OUT bit made Windows avoid
        initialising the IOMMU on the graphics unit altogether.
      
        This means that it would be available for use in "driver mode", where
        the IOMMU registers are made available through a BAR of the graphics
        device and the graphics driver can do SVM all for itself.
      
        So they started setting the X2APIC_OPT_OUT bit on *all* platforms with
        SVM capabilities.  And even the platforms which *might*, if the
        planets had been aligned correctly, possibly have had SVM capability
        but which in practice actually don't"
      
      * git://git.infradead.org/intel-iommu:
        iommu/vt-d: support extended root and context entries
        iommu/vt-d: Add new extended capabilities from v2.3 VT-d specification
        iommu/vt-d: Allow RMRR on graphics devices too
        iommu/vt-d: Print x2apic opt out info instead of printing a warning
        iommu/vt-d: kill bogus ecap_niotlb_iunits()
      9f86262d
    • L
      Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 85f2901b
      Linus Torvalds 提交于
      Pull i2c fixes from Wolfram Sang:
       "This has a mixture of merge window cleanups and bugfixes"
      
      * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: st: add include for pinctrl
        i2c: mux: use proper dev when removing "channel-X" symlinks
        i2c: digicolor: remove duplicate include
        i2c: Mark adapter devices with pm_runtime_no_callbacks
        i2c: pca-platform: fix broken email address
        i2c: mxs: fix broken email address
        i2c: rk3x: report number of messages transmitted
      85f2901b
    • L
      Merge branch 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · f583381f
      Linus Torvalds 提交于
      Pull btrfs fixes from Chris Mason:
       "Filipe hit two problems in my block group cache patches.  We finalized
        the fixes last week and ran through more tests"
      
      * 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
        Btrfs: prevent list corruption during free space cache processing
        Btrfs: fix inode cache writeout
      f583381f
    • D
      Merge tag 'drm-intel-next-fixes-2015-04-25' of... · 59fd7e4b
      Dave Airlie 提交于
      Merge tag 'drm-intel-next-fixes-2015-04-25' of git://anongit.freedesktop.org/drm-intel into drm-fixes
      
      three fixes for i915.
      
      * tag 'drm-intel-next-fixes-2015-04-25' of git://anongit.freedesktop.org/drm-intel:
        drm/i915: vlv: fix save/restore of GFX_MAX_REQ_COUNT reg
        drm/i915: Workaround to avoid lite restore with HEAD==TAIL
        drm/i915: cope with large i2c transfers
      59fd7e4b
    • L
      Merge tag 'nfs-for-4.1-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs · 59953fba
      Linus Torvalds 提交于
      Pull NFS client updates from Trond Myklebust:
       "Another set of mainly bugfixes and a couple of cleanups.  No new
        functionality in this round.
      
        Highlights include:
      
        Stable patches:
         - Fix a regression in /proc/self/mountstats
         - Fix the pNFS flexfiles O_DIRECT support
         - Fix high load average due to callback thread sleeping
      
        Bugfixes:
         - Various patches to fix the pNFS layoutcommit support
         - Do not cache pNFS deviceids unless server notifications are enabled
         - Fix a SUNRPC transport reconnection regression
         - make debugfs file creation failure non-fatal in SUNRPC
         - Another fix for circular directory warnings on NFSv4 "junctioned"
           mountpoints
         - Fix locking around NFSv4.2 fallocate() support
         - Truncating NFSv4 file opens should also sync O_DIRECT writes
         - Prevent infinite loop in rpcrdma_ep_create()
      
        Features:
         - Various improvements to the RDMA transport code's handling of
           memory registration
         - Various code cleanups"
      
      * tag 'nfs-for-4.1-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (55 commits)
        fs/nfs: fix new compiler warning about boolean in switch
        nfs: Remove unneeded casts in nfs
        NFS: Don't attempt to decode missing directory entries
        Revert "nfs: replace nfs_add_stats with nfs_inc_stats when add one"
        NFS: Rename idmap.c to nfs4idmap.c
        NFS: Move nfs_idmap.h into fs/nfs/
        NFS: Remove CONFIG_NFS_V4 checks from nfs_idmap.h
        NFS: Add a stub for GETDEVICELIST
        nfs: remove WARN_ON_ONCE from nfs_direct_good_bytes
        nfs: fix DIO good bytes calculation
        nfs: Fetch MOUNTED_ON_FILEID when updating an inode
        sunrpc: make debugfs file creation failure non-fatal
        nfs: fix high load average due to callback thread sleeping
        NFS: Reduce time spent holding the i_mutex during fallocate()
        NFS: Don't zap caches on fallocate()
        xprtrdma: Make rpcrdma_{un}map_one() into inline functions
        xprtrdma: Handle non-SEND completions via a callout
        xprtrdma: Add "open" memreg op
        xprtrdma: Add "destroy MRs" memreg op
        xprtrdma: Add "reset MRs" memreg op
        ...
      59953fba
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 9ec3a646
      Linus Torvalds 提交于
      Pull fourth vfs update from Al Viro:
       "d_inode() annotations from David Howells (sat in for-next since before
        the beginning of merge window) + four assorted fixes"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        RCU pathwalk breakage when running into a symlink overmounting something
        fix I_DIO_WAKEUP definition
        direct-io: only inc/dec inode->i_dio_count for file systems
        fs/9p: fix readdir()
        VFS: assorted d_backing_inode() annotations
        VFS: fs/inode.c helpers: d_inode() annotations
        VFS: fs/cachefiles: d_backing_inode() annotations
        VFS: fs library helpers: d_inode() annotations
        VFS: assorted weird filesystems: d_inode() annotations
        VFS: normal filesystems (and lustre): d_inode() annotations
        VFS: security/: d_inode() annotations
        VFS: security/: d_backing_inode() annotations
        VFS: net/: d_inode() annotations
        VFS: net/unix: d_backing_inode() annotations
        VFS: kernel/: d_inode() annotations
        VFS: audit: d_backing_inode() annotations
        VFS: Fix up some ->d_inode accesses in the chelsio driver
        VFS: Cachefiles should perform fs modifications on the top layer only
        VFS: AF_UNIX sockets should call mknod on the top layer only
      9ec3a646
    • L
      Merge tag 'pm+acpi-4.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · c8b3fd0c
      Linus Torvalds 提交于
      Pull more power management and ACPI updates from Rafael Wysocki:
       "These are fixes mostly (intel_pstate, ACPI core, ACPI EC driver,
        cpupower tool), a new CPU ID for the Intel RAPL driver and one
        intel_pstate driver improvement that didn't make it to my previous
        pull requests due to timing.
      
        Specifics:
      
         - Fix a build warning in the intel_pstate driver showing up in
           non-SMP builds (Borislav Petkov)
      
         - Change one of the intel_pstate's P-state selection parameters for
           Baytrail and Cherrytrail CPUs to significantly improve performance
           at the cost of a small increase in energy consumption (Kristen
           Carlson Accardi)
      
         - Fix a NULL pointer dereference in the ACPI EC driver due to an
           unsafe list walk in the query handler removal routine (Chris
           Bainbridge)
      
         - Get rid of a false-positive lockdep warning in the ACPI container
           hot-remove code (Rafael J Wysocki)
      
         - Prevent the ACPI device enumeration code from creating device
           objects of a wrong type in some cases (Rafael J Wysocki)
      
         - Add Skylake processors support to the Intel RAPL power capping
           driver (Brian Bian)
      
         - Drop the stale MAINTAINERS entry for the ACPI dock driver that is
           regarded as part of the ACPI core and maintained along with it now
           (Chao Yu)
      
         - Fix cpupower tool breakage caused by a library API change in libpci
           3.3.0 (Lucas Stach)"
      
      * tag 'pm+acpi-4.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPI / scan: Add a scan handler for PRP0001
        ACPI / scan: Annotate physical_node_lock in acpi_scan_is_offline()
        ACPI / EC: fix NULL pointer dereference in acpi_ec_remove_query_handler()
        MAINTAINERS: remove maintainship entry of docking station driver
        powercap / RAPL: Add support for Intel Skylake processors
        cpufreq: intel_pstate: Fix an annoying !CONFIG_SMP warning
        intel_pstate: Change the setpoint for Atom params
        cpupower: fix breakage from libpci API change
      c8b3fd0c