1. 17 Jul, 2012 10 commits
  2. 16 Jul, 2012 1 commit
  3. 14 Jul, 2012 1 commit
    • Mark Rustad's avatar
      tcm_fc: Fix crash seen with aborts and large reads · 3cc5d2a6
      Mark Rustad authored
      
      
      This patch fixes a crash seen when large reads have their exchange
      aborted by either timing out or being reset. Because the exchange
      abort results in the seq pointer being set to NULL, because the
      sequence is no longer valid, it must not be dereferenced. This
      patch changes the function ft_get_task_tag to return ~0 if it is
      unable to get the tag for this reason. Because the get_task_tag
      interface provides no means of returning an error, this seems
      like the best way to fix this issue at the moment.
      
      Signed-off-by: default avatarMark Rustad <mark.d.rustad@intel.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      3cc5d2a6
  4. 06 Jul, 2012 2 commits
  5. 13 Jun, 2012 10 commits
  6. 09 Jun, 2012 1 commit
  7. 08 Jun, 2012 15 commits
    • David Rientjes's avatar
      mm, oom: fix badness score underflow · 1e11ad8d
      David Rientjes authored
      If the privileges given to root threads (3% of allowable memory) or a
      negative value of /proc/pid/oom_score_adj happen to exceed the amount of
      rss of a thread, its badness score overflows as a result of commit
      a7f638f9
      
       ("mm, oom: normalize oom scores to oom_score_adj scale only
      for userspace").
      
      Fix this by making the type signed and return 1, meaning the thread is
      still eligible for kill, if the value is negative.
      
      Reported-by: default avatarDave Jones <davej@redhat.com>
      Acked-by: default avatarOleg Nesterov <oleg@redhat.com>
      Signed-off-by: default avatarDavid Rientjes <rientjes@google.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      1e11ad8d
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 72494504
      Linus Torvalds authored
      Pull scheduler fixes from Ingo Molnar.
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched: Fix the relax_domain_level boot parameter
        sched: Validate assumptions in sched_init_numa()
        sched: Always initialize cpu-power
        sched: Fix domain iteration
        sched/rt: Fix lockdep annotation within find_lock_lowest_rq()
        sched/numa: Load balance between remote nodes
        sched/x86: Calculate booted cores after construction of sibling_mask
      72494504
    • Randy Dunlap's avatar
      sched/fair: fix lots of kernel-doc warnings · cd96891d
      Randy Dunlap authored
      
      
      Fix lots of new kernel-doc warnings in kernel/sched/fair.c:
      
        Warning(kernel/sched/fair.c:3625): No description found for parameter 'env'
        Warning(kernel/sched/fair.c:3625): Excess function parameter 'sd' description in 'update_sg_lb_stats'
        Warning(kernel/sched/fair.c:3735): No description found for parameter 'env'
        Warning(kernel/sched/fair.c:3735): Excess function parameter 'sd' description in 'update_sd_pick_busiest'
        Warning(kernel/sched/fair.c:3735): Excess function parameter 'this_cpu' description in 'update_sd_pick_busiest'
        .. more warnings
      
      Signed-off-by: default avatarRandy Dunlap <rdunlap@xenotime.net>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      cd96891d
    • Linus Torvalds's avatar
      Revert "drm/i915/crt: Do not rely upon the HPD presence pin" · 8f53369b
      Linus Torvalds authored
      This reverts commit 9e612a00
      
      .
      
      It incorrectly finds VGA connectors where none are attached, apparently
      not noticing that nothing replied to the EDID queries, and happily using
      the default EDID modes that have nothing to do with actual hardware.
      
      That in turn then causes X to fall down to the lowest common
      denominator, which is usually the default 1024x768 mode that is in the
      default EDID and pretty much anything supports).
      
      I'd suggest that if not relying on the HDP pin, the code should at least
      check whether it gets valid EDID data back, rather than just assume
      there's something on the VGA connector.
      
      Cc: Dave Airlie <airlied@linux.ie>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8f53369b
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · 77249539
      Linus Torvalds authored
      Pull ext4 bug fixes from Theodore Ts'o:
       "This update contains two bug fixes, both destined for the stable tree.
        Perhaps the most important is one which fixes ext4 when used with file
        systems originally formatted for use with ext3, but then later
        converted to take advantage of ext4."
      
      * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
        ext4: don't set i_flags in EXT4_IOC_SETFLAGS
        ext4: fix the free blocks calculation for ext3 file systems w/ uninit_bg
      77249539
    • Linus Torvalds's avatar
      Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc · 3e9ca022
      Linus Torvalds authored
      Pull powerpc fixes from Paul Mackerras:
       "Two small fixes for powerpc:
         - a fix for a regression since 3.2 that causes 4-second (or longer)
           pauses
         - a fix for a potential oops when loading kernel modules on 32-bit
           embedded systems."
      
      * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
        powerpc: Fix kernel panic during kernel module load
        powerpc/time: Sanity check of decrementer expiration is necessary
      3e9ca022
    • Linus Torvalds's avatar
      Merge tag 'upstream-3.5-rc2' of git://git.infradead.org/linux-ubifs · e7264308
      Linus Torvalds authored
      Pull UBI/UBIFS fixes from Artem Bityutskiy:
       "Fix UBI and UBIFS - they refuse to work without debugfs.  This was
        broken by the 3.5-rc1 UBI/UBIFS changes when we removed the debugging
        Kconfig switches.
      
        Also, correct locking in 'ubi_wl_flush()' - it was extended to support
        flushing a specific LEB in 3.5-rc1, and the locking was sub-optimal."
      
      * tag 'upstream-3.5-rc2' of git://git.infradead.org/linux-ubifs:
        UBI: correct ubi_wl_flush locking
        UBIFS: fix debugfs-less systems support
        UBI: fix debugfs-less systems support
      e7264308
    • Linus Torvalds's avatar
      Revert "vfs: stop d_splice_alias creating directory aliases" · 32ba9c3f
      Linus Torvalds authored
      This reverts commit 7732a557 (and commit
      3f50fff4, which was a follow-up
      cleanup).
      
      We're chasing an elusive bug that Dave Jones can apparently reproduce
      using his system call fuzzer tool, and that looks like some kind of
      locking ordering problem on the directory i_mutex chain.  Our i_mutex
      locking is rather complex, and depends on the topological ordering of
      the directories, which is why we have been very wary of splicing
      directory entries around.
      
      Of course, we really don't want to ever see aliased unconnected
      directories anyway, so none of this should ever happen, but this revert
      aims to basically get us back to a known older state.
      
      Bruce points to some of the previous discussion at
      
             http://marc.info/?i=<20110310105821.GE22723@ZenIV.linux.org.uk>
      
      and in particular a long post from Neil:
      
             http://marc.info/?i=<20110311150749.2fa2be66@notabene.brown
      
      >
      
      It should be noted that it's possible that Dave's problems come from
      other changes altohgether, including possibly just the fact that Dave
      constantly is teachning his fuzzer new tricks.  So what appears to be a
      new bug could in fact be an old one that just gets newly triggered, but
      reverting these patches as "still under heavy discussion" is the right
      thing regardless.
      
      Requested-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      Acked-by: default avatarJ. Bruce Fields <bfields@fieldses.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      32ba9c3f
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 0b35d326
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar.
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/nmi: Fix section mismatch warnings on 32-bit
        x86/uv: Fix UV2 BAU legacy mode
        x86/mm: Only add extra pages count for the first memory range during pre-allocation early page table space
        x86, efi stub: Add .reloc section back into image
        x86/ioapic: Fix NULL pointer dereference on CPU hotplug after disabling irqs
        x86/reboot: Fix a warning message triggered by stop_other_cpus()
        x86/intel/moorestown: Change intel_scu_devices_create() to __devinit
        x86/numa: Set numa_nodes_parsed at acpi_numa_memory_affinity_init()
        x86/gart: Fix kmemleak warning
        x86: mce: Add the dropped timer interval init back
        x86/mce: Fix the MCE poll timer logic
      0b35d326
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 106544d8
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "A bit larger than what I'd wish for - half of it is due to hw driver
        updates to Intel Ivy-Bridge which info got recently released,
        cycles:pp should work there now too, amongst other things.  (but we
        are generally making exceptions for hardware enablement of this type.)
      
        There are also callchain fixes in it - responding to mostly
        theoretical (but valid) concerns.  The tooling side sports perf.data
        endianness/portability fixes which did not make it for the merge
        window - and various other fixes as well."
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
        perf/x86: Check user address explicitly in copy_from_user_nmi()
        perf/x86: Check if user fp is valid
        perf: Limit callchains to 127
        perf/x86: Allow multiple stacks
        perf/x86: Update SNB PEBS constraints
        perf/x86: Enable/Add IvyBridge hardware support
        perf/x86: Implement cycles:p for SNB/IVB
        perf/x86: Fix Intel shared extra MSR allocation
        x86/decoder: Fix bsr/bsf/jmpe decoding with operand-size prefix
        perf: Remove duplicate invocation on perf_event_for_each
        perf uprobes: Remove unnecessary check before strlist__delete
        perf symbols: Check for valid dso before creating map
        perf evsel: Fix 32 bit values endianity swap for sample_id_all header
        perf session: Handle endianity swap on sample_id_all header data
        perf symbols: Handle different endians properly during symbol load
        perf evlist: Pass third argument to ioctl explicitly
        perf tools: Update ioctl documentation for PERF_IOC_FLAG_GROUP
        perf tools: Make --version show kernel version instead of pull req tag
        perf tools: Check if callchain is corrupted
        perf callchain: Make callchain cursors TLS
        ...
      106544d8
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 03d8f540
      Linus Torvalds authored
      Pull drm intel and exynos fixes from Dave Airlie:
       "A bunch of fixes for Intel and exynos, nothing too major, a new intel
        PCI ID, and a fix for CRT detection."
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        drm/i915: pch_irq_handler -> {ibx, cpt}_irq_handler
        char/agp: add another Ironlake host bridge
        drm/i915: fix up ivb plane 3 pageflips
        drm/exynos: fixed blending for hdmi graphic layer
        drm/exynos: Remove dummy encoder get_crtc operation implementation
        drm/exynos: Keep a reference to frame buffer GEM objects
        drm/exynos: Don't cast GEM object to Exynos GEM object when not needed
        drm/exynos: DRIVER_BUS_PLATFORM is not a driver feature
        drm/exynos: fixed size type.
        drm/exynos: Use DRM_FORMAT_{NV12, YUV420} instead of DRM_FORMAT_{NV12M, YUV420M}
        drm/i915: hold forcewake around ring hw init
        drm/i915: Mark the ringbuffers as being in the GTT domain
        drm/i915/crt: Do not rely upon the HPD presence pin
        drm/i915: Reset last_retired_head when resetting ring
      03d8f540
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b1e25f41
      Linus Torvalds authored
      Pull leap second timer fix from Thomas Gleixner.
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        timekeeping: Fix CLOCK_MONOTONIC inconsistency during leapsecond
      b1e25f41
    • Linus Torvalds's avatar
      Merge tag 'moduleparam-for-linus' of... · 857505fa
      Linus Torvalds authored
      Merge tag 'moduleparam-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
      
      Pull minor module param fixes from Rusty Russell:
       "One bugfix for multiple moduleparam levels, one removal of overzealous
        printk."
      
      * tag 'moduleparam-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
        init: Drop initcall level output
        module_param: stop double-calling parameters.
      857505fa
    • Don Zickus's avatar
      x86/nmi: Fix section mismatch warnings on 32-bit · eeaaa96a
      Don Zickus authored
      
      
      It was reported that compiling for 32-bit caused a bunch of
      section mismatch warnings:
      
       VDSOSYM arch/x86/vdso/vdso32-syms.lds
        LD      arch/x86/vdso/built-in.o
        LD      arch/x86/built-in.o
      
       WARNING: arch/x86/built-in.o(.data+0x5af0): Section mismatch in
       reference from the variable test_nmi_ipi_callback_na.10451 to
       the function .init.text:test_nmi_ipi_callback() [...]
      
       WARNING: arch/x86/built-in.o(.data+0x5b04): Section mismatch in
       reference from the variable nmi_unk_cb_na.10399 to the function
       .init.text:nmi_unk_cb() The variable nmi_unk_cb_na.10399
       references the function __init nmi_unk_cb() [...]
      
      Both of these are attributed to the internal representation of
      the nmiaction struct created during register_nmi_handler.  The
      reason for this is that those structs are not defined in the
      init section whereas the rest of the code in nmi_selftest.c is.
      
      To resolve this, I created a new #define,
      register_nmi_handler_initonly, that tags the struct as
      __initdata to resolve the mismatch.  This #define should only be
      used in rare situations where the register/unregister is called
      during init of the kernel.
      
      Big thanks to Jan Beulich for decoding this for me as I didn't
      have a clue what was going on.
      
      Reported-by: default avatarWitold Baryluk <baryluk@smp.if.uj.edu.pl>
      Tested-by: default avatarWitold Baryluk <baryluk@smp.if.uj.edu.pl>
      Cc: Jan Beulich <JBeulich@suse.com>
      Signed-off-by: default avatarDon Zickus <dzickus@redhat.com>
      Link: http://lkml.kernel.org/r/1338991542-23000-1-git-send-email-dzickus@redhat.com
      
      
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      eeaaa96a
    • Steffen Rumler's avatar
      powerpc: Fix kernel panic during kernel module load · 3c752965
      Steffen Rumler authored
      
      
      This fixes a problem which can causes kernel oopses while loading
      a kernel module.
      
      According to the PowerPC EABI specification, GPR r11 is assigned
      the dedicated function to point to the previous stack frame.
      In the powerpc-specific kernel module loader, do_plt_call()
      (in arch/powerpc/kernel/module_32.c), GPR r11 is also used
      to generate trampoline code.
      
      This combination crashes the kernel, in the case where the compiler
      chooses to use a helper function for saving GPRs on entry, and the
      module loader has placed the .init.text section far away from the
      .text section, meaning that it has to generate a trampoline for
      functions in the .init.text section to call the GPR save helper.
      Because the trampoline trashes r11, references to the stack frame
      using r11 can cause an oops.
      
      The fix just uses GPR r12 instead of GPR r11 for generating the
      trampoline code.  According to the statements from Freescale, this is
      safe from an EABI perspective.
      
      I've tested the fix for kernel 2.6.33 on MPC8541.
      
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarSteffen Rumler <steffen.rumler.ext@nsn.com>
      [paulus@samba.org: reworded the description]
      Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      3c752965