1. 06 12月, 2016 1 次提交
  2. 30 11月, 2016 2 次提交
    • I
      sched/x86: Make CONFIG_SCHED_MC_PRIO=y easier to enable · 0a21fc12
      Ingo Molnar 提交于
      Right now CONFIG_SCHED_MC_PRIO has X86_INTEL_PSTATE as a dependency,
      which is not enabled by default and which hides the CONFIG_SCHED_MC_PRIO
      hardware-enabling feature.
      
      Select X86_INTEL_PSTATE instead, plus its dependency (CPU_FREQ), if the
      user enables CONFIG_SCHED_MC_PRIO=y.
      
      (Also align the CONFIG_SCHED_MC_PRIO Kconfig help text in standard style.)
      
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tim Chen <tim.c.chen@linux.intel.com>
      Cc: bp@suse.de
      Cc: jolsa@redhat.com
      Cc: linux-acpi@vger.kernel.org
      Cc: linux-pm@vger.kernel.org
      Cc: rjw@rjwysocki.net
      Cc: linux-kernel@vger.kernel.org
      Signed-off-by: NIngo Molnar <mingo@kernel.org>
      0a21fc12
    • T
      sched/x86: Change CONFIG_SCHED_ITMT to CONFIG_SCHED_MC_PRIO · de966cf4
      Tim Chen 提交于
      Rename CONFIG_SCHED_ITMT for Intel Turbo Boost Max Technology 3.0
      to CONFIG_SCHED_MC_PRIO.  This makes the configuration extensible
      in future to other architectures that wish to similarly establish
      CPU core priorities support in the scheduler.
      
      The description in Kconfig is updated to reflect this change with
      added details for better clarity.  The configuration is explicitly
      default-y, to enable the feature on CPUs that have this feature.
      
      It has no effect on non-TBM3 CPUs.
      Signed-off-by: NTim Chen <tim.c.chen@linux.intel.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: bp@suse.de
      Cc: jolsa@redhat.com
      Cc: linux-acpi@vger.kernel.org
      Cc: linux-pm@vger.kernel.org
      Cc: rjw@rjwysocki.net
      Link: http://lkml.kernel.org/r/2b2ee29d93e3f162922d72d0165a1405864fbb23.1480444902.git.tim.c.chen@linux.intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      de966cf4
  3. 28 11月, 2016 1 次提交
    • I
      x86/sched: Use #include <linux/mutex.h> instead of #include <asm/mutex.h> · a293b395
      Ingo Molnar 提交于
      asm/mutex.h is gone from the locking tree, which makes sched/core break the build.
      
      Use linux/mutex.h instead, which is the canonical method.
      
      Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
      Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
      Cc: Tim Chen <tim.c.chen@linux.intel.com>
      Cc: peterz@infradead.org
      Cc: jolsa@redhat.com
      Cc: rjw@rjwysocki.net
      Cc: bp@suse.de
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Signed-off-by: NIngo Molnar <mingo@kernel.org>
      a293b395
  4. 25 11月, 2016 7 次提交
  5. 24 11月, 2016 1 次提交
  6. 23 11月, 2016 8 次提交
  7. 22 11月, 2016 8 次提交
    • O
      sched/autogroup: Do not use autogroup->tg in zombie threads · 8e5bfa8c
      Oleg Nesterov 提交于
      Exactly because for_each_thread() in autogroup_move_group() can't see it
      and update its ->sched_task_group before _put() and possibly free().
      
      So the exiting task needs another sched_move_task() before exit_notify()
      and we need to re-introduce the PF_EXITING (or similar) check removed by
      the previous change for another reason.
      Signed-off-by: NOleg Nesterov <oleg@redhat.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>
      Cc: hartsjc@redhat.com
      Cc: vbendel@redhat.com
      Cc: vlovejoy@redhat.com
      Link: http://lkml.kernel.org/r/20161114184612.GA15968@redhat.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      8e5bfa8c
    • O
      sched/autogroup: Fix autogroup_move_group() to never skip sched_move_task() · 18f649ef
      Oleg Nesterov 提交于
      The PF_EXITING check in task_wants_autogroup() is no longer needed. Remove
      it, but see the next patch.
      
      However the comment is correct in that autogroup_move_group() must always
      change task_group() for every thread so the sysctl_ check is very wrong;
      we can race with cgroups and even sys_setsid() is not safe because a task
      running with task_group() == ag->tg must participate in refcounting:
      
      	int main(void)
      	{
      		int sctl = open("/proc/sys/kernel/sched_autogroup_enabled", O_WRONLY);
      
      		assert(sctl > 0);
      		if (fork()) {
      			wait(NULL); // destroy the child's ag/tg
      			pause();
      		}
      
      		assert(pwrite(sctl, "1\n", 2, 0) == 2);
      		assert(setsid() > 0);
      		if (fork())
      			pause();
      
      		kill(getppid(), SIGKILL);
      		sleep(1);
      
      		// The child has gone, the grandchild runs with kref == 1
      		assert(pwrite(sctl, "0\n", 2, 0) == 2);
      		assert(setsid() > 0);
      
      		// runs with the freed ag/tg
      		for (;;)
      			sleep(1);
      
      		return 0;
      	}
      
      crashes the kernel. It doesn't really need sleep(1), it doesn't matter if
      autogroup_move_group() actually frees the task_group or this happens later.
      Reported-by: NVern Lovejoy <vlovejoy@redhat.com>
      Signed-off-by: NOleg Nesterov <oleg@redhat.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>
      Cc: hartsjc@redhat.com
      Cc: vbendel@redhat.com
      Link: http://lkml.kernel.org/r/20161114184609.GA15965@redhat.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      18f649ef
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security · 3b404a51
      Linus Torvalds 提交于
      Pull apparmor bugfix from James Morris:
       "This has a fix for a policy replacement bug that is fairly serious for
        apache mod_apparmor users, as it results in the wrong policy being
        applied on an network facing service"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
        apparmor: fix change_hat not finding hat after policy replacement
      3b404a51
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc · 8d1a2408
      Linus Torvalds 提交于
      Pull sparc fixes from David Miller:
      
       1) With modern networking cards we can run out of 32-bit DMA space, so
          support 64-bit DMA addressing when possible on sparc64. From Dave
          Tushar.
      
       2) Some signal frame validation checks are inverted on sparc32, fix
          from Andreas Larsson.
      
       3) Lockdep tables can get too large in some circumstances on sparc64,
          add a way to adjust the size a bit. From Babu Moger.
      
       4) Fix NUMA node probing on some sun4v systems, from Thomas Tai.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
        sparc: drop duplicate header scatterlist.h
        lockdep: Limit static allocations if PROVE_LOCKING_SMALL is defined
        config: Adding the new config parameter CONFIG_PROVE_LOCKING_SMALL for sparc
        sunbmac: Fix compiler warning
        sunqe: Fix compiler warnings
        sparc64: Enable 64-bit DMA
        sparc64: Enable sun4v dma ops to use IOMMU v2 APIs
        sparc64: Bind PCIe devices to use IOMMU v2 service
        sparc64: Initialize iommu_map_table and iommu_pool
        sparc64: Add ATU (new IOMMU) support
        sparc64: Add FORCE_MAX_ZONEORDER and default to 13
        sparc64: fix compile warning section mismatch in find_node()
        sparc32: Fix inverted invalid_frame_pointer checks on sigreturns
        sparc64: Fix find_node warning if numa node cannot be found
      8d1a2408
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 27e7ab99
      Linus Torvalds 提交于
      Pull networking fixes from David Miller:
      
       1) Clear congestion control state when changing algorithms on an
          existing socket, from Florian Westphal.
      
       2) Fix register bit values in altr_tse_pcs portion of stmmac driver,
          from Jia Jie Ho.
      
       3) Fix PTP handling in stammc driver for GMAC4, from Giuseppe
          CAVALLARO.
      
       4) Fix udplite multicast delivery handling, it ignores the udp_table
          parameter passed into the lookups, from Pablo Neira Ayuso.
      
       5) Synchronize the space estimated by rtnl_vfinfo_size and the space
          actually used by rtnl_fill_vfinfo. From Sabrina Dubroca.
      
       6) Fix memory leak in fib_info when splitting nodes, from Alexander
          Duyck.
      
       7) If a driver does a napi_hash_del() explicitily and not via
          netif_napi_del(), it must perform RCU synchronization as needed. Fix
          this in virtio-net and bnxt drivers, from Eric Dumazet.
      
       8) Likewise, it is not necessary to invoke napi_hash_del() is we are
          also doing neif_napi_del() in the same code path. Remove such calls
          from be2net and cxgb4 drivers, also from Eric Dumazet.
      
       9) Don't allocate an ID in peernet2id_alloc() if the netns is dead,
          from WANG Cong.
      
      10) Fix OF node and device struct leaks in of_mdio, from Johan Hovold.
      
      11) We cannot cache routes in ip6_tunnel when using inherited traffic
          classes, from Paolo Abeni.
      
      12) Fix several crashes and leaks in cpsw driver, from Johan Hovold.
      
      13) Splice operations cannot use freezable blocking calls in AF_UNIX,
          from WANG Cong.
      
      14) Link dump filtering by master device and kind support added an error
          in loop index updates during the dump if we actually do filter, fix
          from Zhang Shengju.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits)
        tcp: zero ca_priv area when switching cc algorithms
        net: l2tp: Treat NET_XMIT_CN as success in l2tp_eth_dev_xmit
        ethernet: stmmac: make DWMAC_STM32 depend on it's associated SoC
        tipc: eliminate obsolete socket locking policy description
        rtnl: fix the loop index update error in rtnl_dump_ifinfo()
        l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind()
        net: macb: add check for dma mapping error in start_xmit()
        rtnetlink: fix FDB size computation
        netns: fix get_net_ns_by_fd(int pid) typo
        af_unix: conditionally use freezable blocking calls in read
        net: ethernet: ti: cpsw: fix fixed-link phy probe deferral
        net: ethernet: ti: cpsw: add missing sanity check
        net: ethernet: ti: cpsw: fix secondary-emac probe error path
        net: ethernet: ti: cpsw: fix of_node and phydev leaks
        net: ethernet: ti: cpsw: fix deferred probe
        net: ethernet: ti: cpsw: fix mdio device reference leak
        net: ethernet: ti: cpsw: fix bad register access in probe error path
        net: sky2: Fix shutdown crash
        cfg80211: limit scan results cache size
        net sched filters: pass netlink message flags in event notification
        ...
      27e7ab99
    • F
      tcp: zero ca_priv area when switching cc algorithms · 7082c5c3
      Florian Westphal 提交于
      We need to zero out the private data area when application switches
      connection to different algorithm (TCP_CONGESTION setsockopt).
      
      When congestion ops get assigned at connect time everything is already
      zeroed because sk_alloc uses GFP_ZERO flag.  But in the setsockopt case
      this contains whatever previous cc placed there.
      Signed-off-by: NFlorian Westphal <fw@strlen.de>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7082c5c3
    • G
      net: l2tp: Treat NET_XMIT_CN as success in l2tp_eth_dev_xmit · 7c6ae610
      Gao Feng 提交于
      The tc could return NET_XMIT_CN as one congestion notification, but
      it does not mean the packe is lost. Other modules like ipvlan,
      macvlan, and others treat NET_XMIT_CN as success too.
      So l2tp_eth_dev_xmit should add the NET_XMIT_CN check.
      Signed-off-by: NGao Feng <gfree.wind@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7c6ae610
    • P
      ethernet: stmmac: make DWMAC_STM32 depend on it's associated SoC · 6bc5445c
      Peter Robinson 提交于
      There's not much point, except compile test, enabling the stmmac
      platform drivers unless the STM32 SoC is enabled. It's not
      useful without it.
      Signed-off-by: NPeter Robinson <pbrobinson@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6bc5445c
  8. 21 11月, 2016 10 次提交
  9. 20 11月, 2016 2 次提交