1. 10 10月, 2017 19 次提交
    • P
      sched/debug: Rename task-state printing helpers · 1d48b080
      Peter Zijlstra 提交于
      Steve requested better names for the new task-state helper functions.
      
      So introduce the concept of task-state index for the printing and
      rename __get_task_state() to task_state_index() and
      __task_state_to_char() to task_index_to_char().
      Requested-by: NSteven Rostedt <rostedt@goodmis.org>
      Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
      Acked-by: NSteven Rostedt <rostedt@goodmis.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Link: http://lkml.kernel.org/r/20170929115016.pzlqc7ss3ccystyg@hirez.programming.kicks-ass.netSigned-off-by: NIngo Molnar <mingo@kernel.org>
      1d48b080
    • P
      sched/idle: Move quiet_vmstate() into the NOHZ code · 62cb1188
      Peter Zijlstra 提交于
      quiet_vmstat() is an expensive function that only makes sense when we
      go into NOHZ.
      Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: aubrey.li@linux.intel.com
      Cc: cl@linux.com
      Cc: fweisbec@gmail.com
      Signed-off-by: NIngo Molnar <mingo@kernel.org>
      62cb1188
    • I
      151aeab7
    • P
      sched/core: Ensure load_balance() respects the active_mask · 024c9d2f
      Peter Zijlstra 提交于
      While load_balance() masks the source CPUs against active_mask, it had
      a hole against the destination CPU. Ensure the destination CPU is also
      part of the 'domain-mask & active-mask' set.
      Reported-by: NLevin, Alexander (Sasha Levin) <alexander.levin@verizon.com>
      Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Fixes: 77d1dfda ("sched/topology, cpuset: Avoid spurious/wrong domain rebuilds")
      Signed-off-by: NIngo Molnar <mingo@kernel.org>
      024c9d2f
    • P
      sched/core: Address more wake_affine() regressions · f2cdd9cc
      Peter Zijlstra 提交于
      The trivial wake_affine_idle() implementation is very good for a
      number of workloads, but it comes apart at the moment there are no
      idle CPUs left, IOW. the overloaded case.
      
      hackbench:
      
      		NO_WA_WEIGHT		WA_WEIGHT
      
      hackbench-20  : 7.362717561 seconds	6.450509391 seconds
      
      (win)
      
      netperf:
      
      		  NO_WA_WEIGHT		WA_WEIGHT
      
      TCP_SENDFILE-1	: Avg: 54524.6		Avg: 52224.3
      TCP_SENDFILE-10	: Avg: 48185.2          Avg: 46504.3
      TCP_SENDFILE-20	: Avg: 29031.2          Avg: 28610.3
      TCP_SENDFILE-40	: Avg: 9819.72          Avg: 9253.12
      TCP_SENDFILE-80	: Avg: 5355.3           Avg: 4687.4
      
      TCP_STREAM-1	: Avg: 41448.3          Avg: 42254
      TCP_STREAM-10	: Avg: 24123.2          Avg: 25847.9
      TCP_STREAM-20	: Avg: 15834.5          Avg: 18374.4
      TCP_STREAM-40	: Avg: 5583.91          Avg: 5599.57
      TCP_STREAM-80	: Avg: 2329.66          Avg: 2726.41
      
      TCP_RR-1	: Avg: 80473.5          Avg: 82638.8
      TCP_RR-10	: Avg: 72660.5          Avg: 73265.1
      TCP_RR-20	: Avg: 52607.1          Avg: 52634.5
      TCP_RR-40	: Avg: 57199.2          Avg: 56302.3
      TCP_RR-80	: Avg: 25330.3          Avg: 26867.9
      
      UDP_RR-1	: Avg: 108266           Avg: 107844
      UDP_RR-10	: Avg: 95480            Avg: 95245.2
      UDP_RR-20	: Avg: 68770.8          Avg: 68673.7
      UDP_RR-40	: Avg: 76231            Avg: 75419.1
      UDP_RR-80	: Avg: 34578.3          Avg: 35639.1
      
      UDP_STREAM-1	: Avg: 64684.3          Avg: 66606
      UDP_STREAM-10	: Avg: 52701.2          Avg: 52959.5
      UDP_STREAM-20	: Avg: 30376.4          Avg: 29704
      UDP_STREAM-40	: Avg: 15685.8          Avg: 15266.5
      UDP_STREAM-80	: Avg: 8415.13          Avg: 7388.97
      
      (wins and losses)
      
      sysbench:
      
      		    NO_WA_WEIGHT		WA_WEIGHT
      
      sysbench-mysql-2  :  2135.17 per sec.		 2142.51 per sec.
      sysbench-mysql-5  :  4809.68 per sec.            4800.19 per sec.
      sysbench-mysql-10 :  9158.59 per sec.            9157.05 per sec.
      sysbench-mysql-20 : 14570.70 per sec.           14543.55 per sec.
      sysbench-mysql-40 : 22130.56 per sec.           22184.82 per sec.
      sysbench-mysql-80 : 20995.56 per sec.           21904.18 per sec.
      
      sysbench-psql-2   :  1679.58 per sec.            1705.06 per sec.
      sysbench-psql-5   :  3797.69 per sec.            3879.93 per sec.
      sysbench-psql-10  :  7253.22 per sec.            7258.06 per sec.
      sysbench-psql-20  : 11166.75 per sec.           11220.00 per sec.
      sysbench-psql-40  : 17277.28 per sec.           17359.78 per sec.
      sysbench-psql-80  : 17112.44 per sec.           17221.16 per sec.
      
      (increase on the top end)
      
      tbench:
      
      NO_WA_WEIGHT
      
      Throughput 685.211 MB/sec   2 clients   2 procs  max_latency=0.123 ms
      Throughput 1596.64 MB/sec   5 clients   5 procs  max_latency=0.119 ms
      Throughput 2985.47 MB/sec  10 clients  10 procs  max_latency=0.262 ms
      Throughput 4521.15 MB/sec  20 clients  20 procs  max_latency=0.506 ms
      Throughput 9438.1  MB/sec  40 clients  40 procs  max_latency=2.052 ms
      Throughput 8210.5  MB/sec  80 clients  80 procs  max_latency=8.310 ms
      
      WA_WEIGHT
      
      Throughput 697.292 MB/sec   2 clients   2 procs  max_latency=0.127 ms
      Throughput 1596.48 MB/sec   5 clients   5 procs  max_latency=0.080 ms
      Throughput 2975.22 MB/sec  10 clients  10 procs  max_latency=0.254 ms
      Throughput 4575.14 MB/sec  20 clients  20 procs  max_latency=0.502 ms
      Throughput 9468.65 MB/sec  40 clients  40 procs  max_latency=2.069 ms
      Throughput 8631.73 MB/sec  80 clients  80 procs  max_latency=8.605 ms
      
      (increase on the top end)
      Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Rik van Riel <riel@redhat.com>
      Cc: linux-kernel@vger.kernel.org
      Signed-off-by: NIngo Molnar <mingo@kernel.org>
      f2cdd9cc
    • P
      sched/core: Fix wake_affine() performance regression · d153b153
      Peter Zijlstra 提交于
      Eric reported a sysbench regression against commit:
      
        3fed382b ("sched/numa: Implement NUMA node level wake_affine()")
      
      Similarly, Rik was looking at the NAS-lu.C benchmark, which regressed
      against his v3.10 enterprise kernel.
      
      PRE (current tip/master):
      
       ivb-ep sysbench:
      
         2: [30 secs]     transactions:                        64110  (2136.94 per sec.)
         5: [30 secs]     transactions:                        143644 (4787.99 per sec.)
        10: [30 secs]     transactions:                        274298 (9142.93 per sec.)
        20: [30 secs]     transactions:                        418683 (13955.45 per sec.)
        40: [30 secs]     transactions:                        320731 (10690.15 per sec.)
        80: [30 secs]     transactions:                        355096 (11834.28 per sec.)
      
       hsw-ex NAS:
      
       OMP_PROC_BIND/lu.C.x_threads_144_run_1.log: Time in seconds =                    18.01
       OMP_PROC_BIND/lu.C.x_threads_144_run_2.log: Time in seconds =                    17.89
       OMP_PROC_BIND/lu.C.x_threads_144_run_3.log: Time in seconds =                    17.93
       lu.C.x_threads_144_run_1.log: Time in seconds =                   434.68
       lu.C.x_threads_144_run_2.log: Time in seconds =                   405.36
       lu.C.x_threads_144_run_3.log: Time in seconds =                   433.83
      
      POST (+patch):
      
       ivb-ep sysbench:
      
         2: [30 secs]     transactions:                        64494  (2149.75 per sec.)
         5: [30 secs]     transactions:                        145114 (4836.99 per sec.)
        10: [30 secs]     transactions:                        278311 (9276.69 per sec.)
        20: [30 secs]     transactions:                        437169 (14571.60 per sec.)
        40: [30 secs]     transactions:                        669837 (22326.73 per sec.)
        80: [30 secs]     transactions:                        631739 (21055.88 per sec.)
      
       hsw-ex NAS:
      
       lu.C.x_threads_144_run_1.log: Time in seconds =                    23.36
       lu.C.x_threads_144_run_2.log: Time in seconds =                    22.96
       lu.C.x_threads_144_run_3.log: Time in seconds =                    22.52
      
      This patch takes out all the shiny wake_affine() stuff and goes back to
      utter basics. Between the two CPUs involved with the wakeup (the CPU
      doing the wakeup and the CPU we ran on previously) pick the CPU we can
      run on _now_.
      
      This restores much of the regressions against the older kernels,
      but leaves some ground in the overloaded case. The default-enabled
      WA_WEIGHT (which will be introduced in the next patch) is an attempt
      to address the overloaded situation.
      Reported-by: NEric Farman <farman@linux.vnet.ibm.com>
      Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Christian Borntraeger <borntraeger@de.ibm.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Rik van Riel <riel@redhat.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: jinpuwang@gmail.com
      Cc: vcaputo@pengaru.com
      Fixes: 3fed382b ("sched/numa: Implement NUMA node level wake_affine()")
      Signed-off-by: NIngo Molnar <mingo@kernel.org>
      d153b153
    • L
      Merge branch 'ppc-bundle' (bundle from Michael Ellerman) · 529a86e0
      Linus Torvalds 提交于
      Merge powerpc transactional memory fixes from Michael Ellerman:
       "I figured I'd still send you the commits using a bundle to make sure
        it works in case I need to do it again in future"
      
      This fixes transactional memory state restore for powerpc.
      
      * bundle'd patches from Michael Ellerman:
        powerpc/tm: Fix illegal TM state in signal handler
        powerpc/64s: Use emergency stack for kernel TM Bad Thing program checks
      529a86e0
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · ff33952e
      Linus Torvalds 提交于
      Pull networking fixes from David Miller:
      
       1) Fix object leak on IPSEC offload failure, from Steffen Klassert.
      
       2) Fix range checks in ipset address range addition operations, from
          Jozsef Kadlecsik.
      
       3) Fix pernet ops unregistration order in ipset, from Florian Westphal.
      
       4) Add missing netlink attribute policy for nl80211 packet pattern
          attrs, from Peng Xu.
      
       5) Fix PPP device destruction race, from Guillaume Nault.
      
       6) Write marks get lost when BPF verifier processes R1=R2 register
          assignments, causing incorrect liveness information and less state
          pruning. Fix from Alexei Starovoitov.
      
       7) Fix blockhole routes so that they are marked dead and therefore not
          cached in sockets, otherwise IPSEC stops working. From Steffen
          Klassert.
      
       8) Fix broadcast handling of UDP socket early demux, from Paolo Abeni.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (37 commits)
        cdc_ether: flag the u-blox TOBY-L2 and SARA-U2 as wwan
        net: thunderx: mark expected switch fall-throughs in nicvf_main()
        udp: fix bcast packet reception
        netlink: do not set cb_running if dump's start() errs
        ipv4: Fix traffic triggered IPsec connections.
        ipv6: Fix traffic triggered IPsec connections.
        ixgbe: incorrect XDP ring accounting in ethtool tx_frame param
        net: ixgbe: Use new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag
        Revert commit 1a8b6d76 ("net:add one common config...")
        ixgbe: fix masking of bits read from IXGBE_VXLANCTRL register
        ixgbe: Return error when getting PHY address if PHY access is not supported
        netfilter: xt_bpf: Fix XT_BPF_MODE_FD_PINNED mode of 'xt_bpf_info_v1'
        netfilter: SYNPROXY: skip non-tcp packet in {ipv4, ipv6}_synproxy_hook
        tipc: Unclone message at secondary destination lookup
        tipc: correct initialization of skb list
        gso: fix payload length when gso_size is zero
        mlxsw: spectrum_router: Avoid expensive lookup during route removal
        bpf: fix liveness marking
        doc: Fix typo "8023.ad" in bonding documentation
        ipv6: fix net.ipv6.conf.all.accept_dad behaviour for real
        ...
      ff33952e
    • A
      cdc_ether: flag the u-blox TOBY-L2 and SARA-U2 as wwan · fdfbad32
      Aleksander Morgado 提交于
      The u-blox TOBY-L2 is a LTE Cat 4 module with HSPA+ and 2G fallback.
      This module allows switching to different USB profiles with the
      'AT+UUSBCONF' command, and provides a ECM network interface when the
      'AT+UUSBCONF=2' profile is selected.
      
      The u-blox SARA-U2 is a HSPA module with 2G fallback. The default USB
      configuration includes a ECM network interface.
      
      Both these modules are controlled via AT commands through one of the
      TTYs exposed. Connecting these modules may be done just by activating
      the desired PDP context with 'AT+CGACT=1,<cid>' and then running DHCP
      on the ECM interface.
      Signed-off-by: NAleksander Morgado <aleksander@aleksander.es>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      fdfbad32
    • L
      Merge tag 'nfs-for-4.14-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs · 68ebe3cb
      Linus Torvalds 提交于
      Pull NFS client bugfixes from Trond Myklebust:
       "Hightlights include:
      
        stable fixes:
         - nfs/filelayout: fix oops when freeing filelayout segment
         - NFS: Fix uninitialized rpc_wait_queue
      
        bugfixes:
         - NFSv4/pnfs: Fix an infinite layoutget loop
         - nfs: RPC_MAX_AUTH_SIZE is in bytes"
      
      * tag 'nfs-for-4.14-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
        NFSv4/pnfs: Fix an infinite layoutget loop
        nfs/filelayout: fix oops when freeing filelayout segment
        sunrpc: remove redundant initialization of sock
        NFS: Fix uninitialized rpc_wait_queue
        NFS: Cleanup error handling in nfs_idmap_request_key()
        nfs: RPC_MAX_AUTH_SIZE is in bytes
      68ebe3cb
    • G
      net: thunderx: mark expected switch fall-throughs in nicvf_main() · 1a2ace56
      Gustavo A. R. Silva 提交于
      In preparation to enabling -Wimplicit-fallthrough, mark switch cases
      where we are expecting to fall through.
      
      Cc: Sunil Goutham <sgoutham@cavium.com>
      Cc: Robert Richter <rric@kernel.org>
      Cc: linux-arm-kernel@lists.infradead.org
      Cc: netdev@vger.kernel.org
      Signed-off-by: NGustavo A. R. Silva <gustavo@embeddedor.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1a2ace56
    • D
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf · fb60bccc
      David S. Miller 提交于
      Pablo Neira Ayuso says:
      
      ====================
      Netfilter/IPVS fixes for net
      
      The following patchset contains Netfilter/IPVS fixes for your net tree,
      they are:
      
      1) Fix packet drops due to incorrect ECN handling in IPVS, from Vadim
         Fedorenko.
      
      2) Fix splat with mark restoration in xt_socket with non-full-sock,
         patch from Subash Abhinov Kasiviswanathan.
      
      3) ipset bogusly bails out when adding IPv4 range containing more than
         2^31 addresses, from Jozsef Kadlecsik.
      
      4) Incorrect pernet unregistration order in ipset, from Florian Westphal.
      
      5) Races between dump and swap in ipset results in BUG_ON splats, from
         Ross Lagerwall.
      
      6) Fix chain renames in nf_tables, from JingPiao Chen.
      
      7) Fix race in pernet codepath with ebtables table registration, from
         Artem Savkov.
      
      8) Memory leak in error path in set name allocation in nf_tables, patch
         from Arvind Yadav.
      
      9) Don't dump chain counters if they are not available, this fixes a
         crash when listing the ruleset.
      
      10) Fix out of bound memory read in strlcpy() in x_tables compat code,
          from Eric Dumazet.
      
      11) Make sure we only process TCP packets in SYNPROXY hooks, patch from
          Lin Zhang.
      
      12) Cannot load rules incrementally anymore after xt_bpf with pinned
          objects, added in revision 1. From Shmulik Ladkani.
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      fb60bccc
    • D
      Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue · 5766cd68
      David S. Miller 提交于
      Jeff Kirsher says:
      
      ====================
      Intel Wired LAN Driver Updates 2017-10-09
      
      This series contains updates to ixgbe and arch/Kconfig.
      
      Mark fixes a case where PHY register access is not supported and we were
      returning a PHY address, when we should have been returning -EOPNOTSUPP.
      
      Sabrina Dubroca fixes the use of a logical "and" when it should have been
      the bitwise "and" operator.
      
      Ding Tianhong reverts the commit that added the Kconfig bool option
      ARCH_WANT_RELAX_ORDER, since there is now a new flag
      PCI_DEV_FLAGS_NO_RELAXED_ORDERING that has been added to indicate that
      Relaxed Ordering Attributes should not be used for Transaction Layer
      Packets.  Then follows up with making the needed changes to ixgbe to
      use the new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag.
      
      John Fastabend fixes an issue in the ring accounting when the transmit
      ring parameters are changed via ethtool when an XDP program is attached.
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      5766cd68
    • P
      udp: fix bcast packet reception · 996b44fc
      Paolo Abeni 提交于
      The commit bc044e8d ("udp: perform source validation for
      mcast early demux") does not take into account that broadcast packets
      lands in the same code path and they need different checks for the
      source address - notably, zero source address are valid for bcast
      and invalid for mcast.
      
      As a result, 2nd and later broadcast packets with 0 source address
      landing to the same socket are dropped. This breaks dhcp servers.
      
      Since we don't have stringent performance requirements for ingress
      broadcast traffic, fix it by disabling UDP early demux such traffic.
      Reported-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
      Fixes: bc044e8d ("udp: perform source validation for mcast early demux")
      Signed-off-by: NPaolo Abeni <pabeni@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      996b44fc
    • J
      netlink: do not set cb_running if dump's start() errs · 41c87425
      Jason A. Donenfeld 提交于
      It turns out that multiple places can call netlink_dump(), which means
      it's still possible to dereference partially initialized values in
      dump() that were the result of a faulty returned start().
      
      This fixes the issue by calling start() _before_ setting cb_running to
      true, so that there's no chance at all of hitting the dump() function
      through any indirect paths.
      
      It also moves the call to start() to be when the mutex is held. This has
      the nice side effect of serializing invocations to start(), which is
      likely desirable anyway. It also prevents any possible other races that
      might come out of this logic.
      
      In testing this with several different pieces of tricky code to trigger
      these issues, this commit fixes all avenues that I'm aware of.
      Signed-off-by: NJason A. Donenfeld <Jason@zx2c4.com>
      Cc: Johannes Berg <johannes@sipsolutions.net>
      Reviewed-by: NJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      41c87425
    • D
      Merge tag 'mac80211-for-davem-2017-10-09' of... · 6df4d17c
      David S. Miller 提交于
      Merge tag 'mac80211-for-davem-2017-10-09' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
      
      Johannes Berg says:
      
      ====================
      pull-request: mac80211 2017-10-09
      
      The QCA folks found another netlink problem - we were missing validation
      of some attributes. It's not super problematic since one can only read a
      few bytes beyond the message (and that memory must exist), but here's the
      fix for it.
      
      I thought perhaps we can make nla_parse_nested() require a policy, but
      given the two-stage validation/parsing in regular netlink that won't work.
      
      Please pull and let me know if there's any problem.
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6df4d17c
    • D
      Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec · 93b03193
      David S. Miller 提交于
      Steffen Klassert says:
      
      ====================
      pull request (net): ipsec 2017-10-09
      
      1) Fix some error paths of the IPsec offloading API.
      
      2) Fix a NULL pointer dereference when IPsec is used
         with vti. From Alexey Kodanev.
      
      3) Don't call xfrm_policy_cache_flush under xfrm_state_lock,
         it triggers several locking warnings. From Artem Savkov.
      
      Please pull or let me know if there are problems.
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      93b03193
    • S
      ipv4: Fix traffic triggered IPsec connections. · 6c0e7284
      Steffen Klassert 提交于
      A recent patch removed the dst_free() on the allocated
      dst_entry in ipv4_blackhole_route(). The dst_free() marked the
      dst_entry as dead and added it to the gc list. I.e. it was setup
      for a one time usage. As a result we may now have a blackhole
      route cached at a socket on some IPsec scenarios. This makes the
      connection unusable.
      
      Fix this by marking the dst_entry directly at allocation time
      as 'dead', so it is used only once.
      
      Fixes: b838d5e1 ("ipv4: mark DST_NOGC and remove the operation of dst_free()")
      Reported-by: NTobias Brunner <tobias@strongswan.org>
      Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6c0e7284
    • S
      ipv6: Fix traffic triggered IPsec connections. · 62cf27e5
      Steffen Klassert 提交于
      A recent patch removed the dst_free() on the allocated
      dst_entry in ipv6_blackhole_route(). The dst_free() marked
      the dst_entry as dead and added it to the gc list. I.e. it
      was setup for a one time usage. As a result we may now have
      a blackhole route cached at a socket on some IPsec scenarios.
      This makes the connection unusable.
      
      Fix this by marking the dst_entry directly at allocation time
      as 'dead', so it is used only once.
      
      Fixes: 587fea74 ("ipv6: mark DST_NOGC and remove the operation of dst_free()")
      Reported-by: NTobias Brunner <tobias@strongswan.org>
      Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      62cf27e5
  2. 09 10月, 2017 12 次提交
  3. 08 10月, 2017 6 次提交
    • A
      bpf: fix liveness marking · 8fe2d6cc
      Alexei Starovoitov 提交于
      while processing Rx = Ry instruction the verifier does
      regs[insn->dst_reg] = regs[insn->src_reg]
      which often clears write mark (when Ry doesn't have it)
      that was just set by check_reg_arg(Rx) prior to the assignment.
      That causes mark_reg_read() to keep marking Rx in this block as
      REG_LIVE_READ (since the logic incorrectly misses that it's
      screened by the write) and in many of its parents (until lucky
      write into the same Rx or beginning of the program).
      That causes is_state_visited() logic to miss many pruning opportunities.
      
      Furthermore mark_reg_read() logic propagates the read mark
      for BPF_REG_FP as well (though it's readonly) which causes
      harmless but unnecssary work during is_state_visited().
      Note that do_propagate_liveness() skips FP correctly,
      so do the same in mark_reg_read() as well.
      It saves 0.2 seconds for the test below
      
      program               before  after
      bpf_lb-DLB_L3.o       2604    2304
      bpf_lb-DLB_L4.o       11159   3723
      bpf_lb-DUNKNOWN.o     1116    1110
      bpf_lxc-DDROP_ALL.o   34566   28004
      bpf_lxc-DUNKNOWN.o    53267   39026
      bpf_netdev.o          17843   16943
      bpf_overlay.o         8672    7929
      time                  ~11 sec  ~4 sec
      
      Fixes: dc503a8a ("bpf/verifier: track liveness for pruning")
      Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
      Acked-by: NEdward Cree <ecree@solarflare.com>
      Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8fe2d6cc
    • A
      doc: Fix typo "8023.ad" in bonding documentation · 00a534e5
      Axel Beckert 提交于
      Should be "802.3ad" like everywhere else in the document.
      Signed-off-by: NAxel Beckert <abe@deuxchevaux.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      00a534e5
    • M
      ipv6: fix net.ipv6.conf.all.accept_dad behaviour for real · a2d3f3e3
      Matteo Croce 提交于
      Commit 35e015e1 ("ipv6: fix net.ipv6.conf.all interface DAD handlers")
      was intended to affect accept_dad flag handling in such a way that
      DAD operation and mode on a given interface would be selected
      according to the maximum value of conf/{all,interface}/accept_dad.
      
      However, addrconf_dad_begin() checks for particular cases in which we
      need to skip DAD, and this check was modified in the wrong way.
      
      Namely, it was modified so that, if the accept_dad flag is 0 for the
      given interface *or* for all interfaces, DAD would be skipped.
      
      We have instead to skip DAD if accept_dad is 0 for the given interface
      *and* for all interfaces.
      
      Fixes: 35e015e1 ("ipv6: fix net.ipv6.conf.all interface DAD handlers")
      Acked-by: NStefano Brivio <sbrivio@redhat.com>
      Signed-off-by: NMatteo Croce <mcroce@redhat.com>
      Reported-by: NErik Kline <ek@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a2d3f3e3
    • L
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 85b1bb24
      Linus Torvalds 提交于
      Pull SCSI fixes from James Bottomley:
      
       - a couple of serious fixes: use after free and blacklist for WRITE
         SAME
      
       - one error leg fix: write_pending failure
      
       - one user experience problem: do not override max_sectors_kb
      
       - one minor unused function removal
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: ibmvscsis: Fix write_pending failure path
        scsi: libiscsi: Remove iscsi_destroy_session
        scsi: libiscsi: Fix use-after-free race during iscsi_session_teardown
        scsi: sd: Do not override max_sectors_kb sysfs setting
        scsi: sd: Implement blacklist option for WRITE SAME w/ UNMAP
      85b1bb24
    • L
      Merge branch 'i2c/for-current-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 67936a41
      Linus Torvalds 提交于
      Pull i2c fixes from Wolfram Sang:
       "I2C has three driver fixes for the newly introduced drivers and one ID
        addition for the i801 driver"
      
      * 'i2c/for-current-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: i2c-stm32f7: make structure stm32f7_setup static const
        i2c: ensure termination of *_device_id tables
        i2c: i801: Add support for Intel Cedar Fork
        i2c: stm32f7: fix setup structure
      67936a41
    • L
      Merge tag 'mmc-v4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc · 031b8140
      Linus Torvalds 提交于
      Pull MMC fixes from Ulf Hansson:
       "MMC core:
      
         - Fix driver strength selection when selecting hs400es
      
         - Delete bounce buffer handling:
      
           This change fixes a problem related to how bounce buffers are being
           allocated. However, instead of trying to fix that, let's just
           remove the mmc bounce buffer code altogether, as it has practically
           no use.
      
        MMC host:
      
         - meson-gx: A couple of fixes related to clock/phase/tuning
      
         - sdhci-xenon: Fix clock resource by adding an optional bus clock"
      
      * tag 'mmc-v4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
        mmc: sdhci-xenon: Fix clock resource by adding an optional bus clock
        mmc: meson-gx: include tx phase in the tuning process
        mmc: meson-gx: fix rx phase reset
        mmc: meson-gx: make sure the clock is rounded down
        mmc: Delete bounce buffer handling
        mmc: core: add driver strength selection when selecting hs400es
      031b8140
  4. 07 10月, 2017 3 次提交