1. 17 Mar, 2014 4 commits
  2. 16 Mar, 2014 3 commits
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 59bf6c3c
      Linus Torvalds authored
      Pull scheduler fixes from Ingo Molnar:
       "Three small fixes"
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/clock: Prevent tracing recursion in sched_clock_cpu()
        stop_machine: Fix^2 race between stop_two_cpus() and stop_cpus()
        sched/deadline: Deny unprivileged users to set/change SCHED_DEADLINE policy
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b44eeb4d
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "Misc smaller fixes"
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/x86: Fix leak in uncore_type_init failure paths
        perf machine: Use map as success in ip__resolve_ams
        perf symbols: Fix crash in elf_section_by_name
        perf trace: Decode architecture-specific signal numbers
    • Michael Kerrisk's avatar
      ipc: Fix 2 bugs in msgrcv() MSG_COPY implementation · 4f87dac3
      Michael Kerrisk authored
      While testing and documenting the msgrcv() MSG_COPY flag that Stanislav
      Kinsbursky added in commit 4a674f34 ("ipc: introduce message queue
      copy feature" => kernel 3.8), I discovered a couple of bugs in the
      implementation.  The two bugs concern MSG_COPY interactions with other
      msgrcv() flags, namely:
      The bugs are distinct (and the fix for the first one is obvious),
      however my fix for both is a single-line patch, which is why I'm
      combining them in a single mail, rather than writing two mails+patches.
       ===== (A) MSG_COPY + MSG_EXCEPT =====
      With the addition of the MSG_COPY flag, there are now two msgrcv()
      flags--MSG_COPY and MSG_EXCEPT--that modify the meaning of the 'msgtyp'
      argument in unrelated ways.  Specifying both in the same call is a
      logical error that is currently permitted, with the effect that MSG_COPY
      has priority and MSG_EXCEPT is ignored.  The call should give an error
      if both flags are specified.  The patch below implements that behavior.
       ===== (B) (B) MSG_COPY + !IPC_NOWAIT =====
      The test code that was submitted in commit 3a665531
       ("selftests: IPC
      message queue copy feature test") shows MSG_COPY being used in
      conjunction with IPC_NOWAIT.  In other words, if there is no message at
      the position 'msgtyp'.  return immediately with the error in ENOMSG.
      What was not (fully) tested is the behavior if MSG_COPY is specified
      *without* IPC_NOWAIT, and there is an odd behavior.  If the queue
      contains less than 'msgtyp' messages, then the call blocks until the
      next message is written to the queue.  At that point, the msgrcv() call
      returns a copy of the newly added message, regardless of whether that
      message is at the ordinal position 'msgtyp'.  This is clearly bogus, and
      problematic for applications that might want to make use of the MSG_COPY
      I considered the following possible solutions to this problem:
       (1) Force the call to block until a message *does* appear at the
           position 'msgtyp'.
       (2) If the MSG_COPY flag is specified, the kernel should implicitly add
           IPC_NOWAIT, so that the call fails with ENOMSG for this case.
       (3) If the MSG_COPY flag is specified, but IPC_NOWAIT is not, generate
           an error (probably, EINVAL is the right one).
      I do not know if any application would really want to have the
      functionality of solution (1), especially since an application can
      determine in advance the number of messages in the queue using msgctl()
      IPC_STAT.  Obviously, this solution would be the most work to implement.
      Solution (2) would have the effect of silently fixing any applications
      that tried to employ broken behavior.  However, it would mean that if we
      later decided to implement solution (1), then user-space could not
      easily detect what the kernel supports (but, since I'm somewhat doubtful
      that solution (1) is needed, I'm not sure that this is much of a
      Solution (3) would have the effect of informing broken applications that
      they are doing something broken.  The downside is that this would cause
      a ABI breakage for any applications that are currently employing the
      broken behavior.  However:
      a) Those applications are almost certainly not getting the results they
      b) Possibly, those applications don't even exist, because MSG_COPY is
         currently hidden behind CONFIG_CHECKPOINT_RESTORE.
      The upside of solution (3) is that if we later decided to implement
      solution (1), user-space could determine what the kernel supports, via
      the error return.
      In my view, solution (3) is mildly preferable to solution (2), and
      solution (1) could still be done later if anyone really cares.  The
      patch below implements solution (3).
      PS.  For anyone out there still listening, it's the usual story:
      documenting an API (and the thinking about, and the testing of the API,
      that documentation entails) is the one of the single best ways of
      finding bugs in the API, as I've learned from a lot of experience.  Best
      to do that documentation before releasing the API.
      Signed-off-by: default avatarMichael Kerrisk <mtk.manpages@gmail.com>
      Acked-by: default avatarStanislav Kinsbursky <skinsbursky@parallels.com>
      Cc: Stanislav Kinsbursky <skinsbursky@parallels.com>
      Cc: stable@vger.kernel.org
      Cc: Serge Hallyn <serge.hallyn@canonical.com>
      Cc: "Eric W. Biederman" <ebiederm@xmission.com>
      Cc: Pavel Emelyanov <xemul@parallels.com>
      Cc: Al Viro <viro@zeniv.linux.org.uk>
      Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
  3. 15 Mar, 2014 4 commits
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 3b4df68d
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "This is a set of six fixes.  Two are instant crash/null deref types
        (storvsc and isci).  The two qla2xxx are initialisation problems that
        cause MSI-X failures and card misdetection, the isci erroneous macro
        is actually illegal C that's causing a miscompile with certain gcc
        versions and the be2iscsi bad if expression is a static checker fix"
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        [SCSI] storvsc: NULL pointer dereference fix
        [SCSI] qla2xxx: Poll during initialization for ISP25xx and ISP83xx
        [SCSI] isci: correct erroneous for_each_isci_host macro
        [SCSI] isci: fix reset timeout handling
        [SCSI] be2iscsi: fix bad if expression
        [SCSI] qla2xxx: Fix multiqueue MSI-X registration.
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · a4ecdf82
      Linus Torvalds authored
      Pull x86 fixes from Peter Anvin:
       "Two x86 fixes: Suresh's eager FPU fix, and a fix to the NUMA quirk for
        AMD northbridges.
        This only includes Suresh's fix patch, not the "mostly a cleanup"
        patch which had __init issues"
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/amd/numa: Fix northbridge quirk to assign correct NUMA node
        x86, fpu: Check tsk_used_math() in kernel_fpu_end() for eager FPU
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-3.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · cee152ff
      Linus Torvalds authored
      Pull ACPI and power management fixes from Rafael Wysocki:
       "Three of these are regression fixes, for two recent regressions and
        one introduced during the 3.13 cycle, and the fourth one is a working
        version of the fix that had to be reverted last time.
         - A recent ACPI resources handling fix overlooked the fact that it
           had to update the ACPI PNP subsystem's resources parsing too and
           caused confusing warning messages to be printed during system
           intialization on some systems (with arguably buggy ACPI tables).
           Fix from Zhang Rui.
         - Moving the early ACPI initialization before timekeeping_init()
           earlier in this cycle broke fast TSC calibration on at least one
           system, so it needs to be done later, but still before
           efi_enter_virtual_mode() to allow the EFI initialization to refer
           to ACPI.
         - A change related to code duplication reduction in the cpufreq core
           inadvertently caused cpufreq intialization to fail for some CPUs
           handled by intel_pstate by adding checks that may fail for that
           driver, but aren't even necessary when it is used.  The issue is
           addressed by preventing those checks from run in the configurations
           in which they aren't needed.
         - If the Hardware Reduced ACPI flag is set in the ACPI tables, system
           suspend, hibernation and ACPI power off will only work when special
           sleep control and sleep status registeres are provided (their
           addresses in the ACPI tables are not zero).  If those registers are
           not available, the features in question have no chances to work, so
           they shouldn't even be regarded as supported.  That helps with
           power off in particular, because alternative power off methods may
           be used then and they may actually work"
      * tag 'pm+acpi-3.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep states
        ACPI / init: Invoke early ACPI initialization later
        cpufreq: Skip current frequency initialization for ->setpolicy drivers
        PNP / ACPI: proper handling of ACPI IO/Memory resource parsing failures
    • Linus Torvalds's avatar
      Merge tag 'dm-3.14-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm · 0c01b452
      Linus Torvalds authored
      Pull device-mapper fixes form Mike Snitzer:
       "Two small fixes for the DM cache target:
         - fix corruption with >2TB fast device due to truncation bug
         - fix access beyond end of origin device due to a partial block"
      * tag 'dm-3.14-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
        dm cache: fix access beyond end of origin device
        dm cache: fix truncation bug when copying a block to/from >2TB fast device
  4. 14 Mar, 2014 4 commits
    • Daniel J Blueman's avatar
      x86/amd/numa: Fix northbridge quirk to assign correct NUMA node · 847d7970
      Daniel J Blueman authored
      For systems with multiple servers and routed fabric, all
      northbridges get assigned to the first server. Fix this by also
      using the node reported from the PCI bus. For single-fabric
      systems, the northbriges are on PCI bus 0 by definition, which
      are on NUMA node 0 by definition, so this is invarient on most
      Tested on fam10h and fam15h single and multi-fabric systems and
      candidate for stable.
      Signed-off-by: default avatarDaniel J Blueman <daniel@numascale.com>
      Acked-by: default avatarSteffen Persvold <sp@numascale.com>
      Acked-by: default avatarBorislav Petkov <bp@suse.de>
      Cc: <stable@vger.kernel.org>
      Link: http://lkml.kernel.org/r/1394710981-3596-1-git-send-email-daniel@numascale.com
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · c60f7d5a
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Pretty minor set of fixes for radeon, ttm and vmwgfx.  The ttm ones
        are a regression and an oops seen on server chipsets"
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        drm/vmwgfx: Fix a surface reference corner-case in legacy emulation mode
        drm/radeon/cik: properly set compute ring status on disable
        drm/radeon/cik: stop the sdma engines in the enable() function
        drm/radeon/cik: properly set sdma ring status on disable
        drm/radeon: fix runpm disabling on non-PX harder
        drm/ttm: don't oops if no invalidate_caches()
        drm/ttm: Work around performance regression with VM_PFNMAP
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · c14c06b7
      Linus Torvalds authored
      Pull i2c Kconfig fix from Wolfram Sang.
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: Remove usage of orphaned symbol OF_I2C
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 53611c0c
      Linus Torvalds authored
      Pull networking fixes from David Miller:
       "I know this is a bit more than you want to see, and I've told the
        wireless folks under no uncertain terms that they must severely scale
        back the extent of the fixes they are submitting this late in the
         1) vmxnet3's netpoll doesn't perform the equivalent of an ISR, which
            is the correct implementation, like it should.  Instead it does
            something like a NAPI poll operation.  This leads to crashes.
            From Neil Horman and Arnd Bergmann.
         2) Segmentation of SKBs requires proper socket orphaning of the
            fragments, otherwise we might access stale state released by the
            release callbacks.
            This is a 5 patch fix, but the initial patches are giving
            variables and such significantly clearer names such that the
            actual fix itself at the end looks trivial.
            From Michael S.  Tsirkin.
         3) TCP control block release can deadlock if invoked from a timer on
            an already "owned" socket.  Fix from Eric Dumazet.
         4) In the bridge multicast code, we must validate that the
            destination address of general queries is the link local all-nodes
            multicast address.  From Linus Lüssing.
         5) The x86 BPF JIT support for negative offsets puts the parameter
            for the helper function call in the wrong register.  Fix from
            Alexei Starovoitov.
         6) The descriptor type used for RTL_GIGA_MAC_VER_17 chips in the
            r8169 driver is incorrect.  Fix from Hayes Wang.
         7) The xen-netback driver tests skb_shinfo(skb)->gso_type bits to see
            if a packet is a GSO frame, but that's not the correct test.  It
            should use skb_is_gso(skb) instead.  Fix from Wei Liu.
         8) Negative msg->msg_namelen values should generate an error, from
            Matthew Leach.
         9) at86rf230 can deadlock because it takes the same lock from it's
            ISR and it's hard_start_xmit method, without disabling interrupts
            in the latter.  Fix from Alexander Aring.
        10) The FEC driver's restart doesn't perform operations in the correct
            order, so promiscuous settings can get lost.  Fix from Stefan
        11) Fix SKB leak in SCTP cookie handling, from Daniel Borkmann.
        12) Reference count and memory leak fixes in TIPC from Ying Xue and
            Erik Hugne.
        13) Forced eviction in inet_frag_evictor() must strictly make sure all
            frags are deleted, otherwise module unload (f.e.  6lowpan) can
            crash.  Fix from Florian Westphal.
        14) Remove assumptions in AF_UNIX's use of csum_partial() (which it
            uses as a hash function), which breaks on PowerPC.  From Anton
            The main gist of the issue is that csum_partial() is defined only
            as a value that, once folded (f.e.  via csum_fold()) produces a
            correct 16-bit checksum.  It is legitimate, therefore, for
            csum_partial() to produce two different 32-bit values over the
            same data if their respective alignments are different.
        15) Fix endiannes bug in MAC address handling of ibmveth driver, also
            from Anton Blanchard.
        16) Error checks for ipv6 exthdrs offload registration are reversed,
            from Anton Nayshtut.
        17) Externally triggered ipv6 addrconf routes should count against the
            garbage collection threshold.  Fix from Sabrina Dubroca.
        18) The PCI shutdown handler added to the bnx2 driver can wedge the
            chip if it was not brought up earlier already, which in particular
            causes the firmware to shut down the PHY.  Fix from Michael Chan.
        19) Adjust the sanity WARN_ON_ONCE() in qdisc_list_add() because as
            currently coded it can and does trigger in legitimate situations.
            From Eric Dumazet.
        20) BNA driver fails to build on ARM because of a too large udelay()
            call, fix from Ben Hutchings.
        21) Fair-Queue qdisc holds locks during GFP_KERNEL allocations, fix
            from Eric Dumazet.
        22) The vlan passthrough ops added in the previous release causes a
            regression in source MAC address setting of outgoing headers in
            some circumstances.  Fix from Peter Boström"
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (70 commits)
        ipv6: Avoid unnecessary temporary addresses being generated
        eth: fec: Fix lost promiscuous mode after reconnecting cable
        bonding: set correct vlan id for alb xmit path
        at86rf230: fix lockdep splats
        net/mlx4_en: Deregister multicast vxlan steering rules when going down
        vmxnet3: fix building without CONFIG_PCI_MSI
        MAINTAINERS: add networking selftests to NETWORKING
        net: socket: error on a negative msg_namelen
        MAINTAINERS: Add tools/net to NETWORKING [GENERAL]
        packet: doc: Spelling s/than/that/
        net/mlx4_core: Load the IB driver when the device supports IBoE
        net/mlx4_en: Handle vxlan steering rules for mac address changes
        net/mlx4_core: Fix wrong dump of the vxlan offloads device capability
        xen-netback: use skb_is_gso in xenvif_start_xmit
        r8169: fix the incorrect tx descriptor version
        tools/net/Makefile: Define PACKAGE to fix build problems
        x86: bpf_jit: support negative offsets
        bridge: multicast: enable snooping on general queries only
        bridge: multicast: add sanity check for general query destination
        tcp: tcp_release_cb() should release socket ownership
  5. 13 Mar, 2014 16 commits
  6. 12 Mar, 2014 9 commits