1. 13 6月, 2012 1 次提交
  2. 12 6月, 2012 11 次提交
    • L
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 94fa83c4
      Linus Torvalds 提交于
      Pull drm fixes from Dave Airlie:
       "As per your -rc2 announce, this is small and urgent only,
      
        The radeon one is for a regression in 3.4 so we need this one in your
        tree so we can send the stable one out, code in 3.4 broke some old
        userspaces.  The max props increase fixes spew being seen on a few
        machines.  And a ttm regression to fix some accounting issues that
        affect vmwgfx."
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        drm/ttm: Fix buffer object metadata accounting regression v2
        drm: increase DRM_OBJECT_MAX_PROPERTY to 24
        drm/radeon: fix tiling and command stream checking on evergreen v3
      94fa83c4
    • L
      Merge tag 'writeback-lock-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux · 266ae4e6
      Linus Torvalds 提交于
      Pull writeback locking fix from Wu Fengguang:
       "fix unbalanced wb->list_lock in 3.5-rc1"
      
      * tag 'writeback-lock-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux:
        writeback: Fix lock imbalance in writeback_sb_inodes()
      266ae4e6
    • T
      drm/ttm: Fix buffer object metadata accounting regression v2 · a393c730
      Thomas Hellstrom 提交于
      A regression was introduced in the 3.3 rc series, commit
      "drm/ttm: simplify memory accounting for ttm user v2",
      causing the metadata of buffer objects created using the ttm_bo_create()
      function to be accounted twice.
      That causes massive leaks with the vmwgfx driver running for example
      SpecViewperf Catia-03 test 2, eventually killing the app.
      
      Furthermore, the same commit introduces a regression where
      metadata accounting is leaked if a buffer object is
      initialized with an illegal size. This is also fixed with this commit.
      
      v2: Fixed an error path and removed an unused variable.
      Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
      Reviewed-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Jerome Glisse <jglisse@redhat.com>
      Cc: stable@vger.kernel.org
      Signed-off-by: NDave Airlie <airlied@redhat.com>
      a393c730
    • P
      drm: increase DRM_OBJECT_MAX_PROPERTY to 24 · fe456168
      Paulo Zanoni 提交于
      Before Kernel 3.5, no one was checking for the return value of
      drm_connector_attach_property, so we never noticed that we were unable
      to create some properties. Commit "drm: WARN() when
      drm_connector_attach_property fails" added a WARN when we fail to
      create a property, and the transition from "connector properties" to
      "object properties" changed the warning message a little bit.
      
      On i915 machines with many TV connectors we hit the maximum number of
      properties (since each TV connector uses a lot of properties), so we
      get a few backtraces in our logs. This commit increases the maximum
      number of properties to 24 hoping we'll have enough room for
      everybody.
      
      Chris suggested that we convert this code to "lists", but I believe
      this conversion can come after we make sure people's dmesgs are not
      spammed by our driver.
      Signed-off-by: NPaulo Zanoni <paulo.r.zanoni@intel.com>
      Reported-by: NDave Jones <davej@redhat.com>
      Tested-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      Signed-off-by: NDave Airlie <airlied@redhat.com>
      fe456168
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu · 7452ca51
      Linus Torvalds 提交于
      Pull m68knommu from Greg Ungerer:
       "This contains five fixes.  Four fix build problems introduced by
        recent clean up and merging of the m68k timer and ptrace code.  The
        other fixes the 528x ColdFire CPU QSPI base address definition, missed
        in the ColdFire QSPI cleanup."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
        m68k: make syscall_trace_enter/leave exist for non-MMU classic m68k types
        m68knommu: fix 68360 local setting of timer interrupt handler
        m68knommu: fix 68328 local setting of timer interrupt handler
        m68k: fix inclusion of arch_gettimeoffset for non-MMU 68k classic CPU types
        m68knommu: m528x qspi definition fix
      7452ca51
    • R
      exofs: fix sparse non-ANSI function warning · b8429719
      Randy Dunlap 提交于
      Fix sparse non-ANSI function warning:
      
        fs/exofs/sys.c:112:28: warning: non-ANSI function declaration of function 'exofs_sysfs_dbg_print'
      Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      b8429719
    • G
      m68k: make syscall_trace_enter/leave exist for non-MMU classic m68k types · 70c778f7
      Greg Ungerer 提交于
      The assembler entry code calls directly to the syscall_trace_enter() and
      syscall_trace_leave() functions. But currently they are conditionaly
      compiled out for the non-MMU classic m68k CPU types (so 68328 for example),
      resulting in a link error:
      
            LD      vmlinux
          arch/m68k/platform/68328/built-in.o: In function `do_trace':
          (.text+0x1c): undefined reference to `syscall_trace_enter'
          arch/m68k/platform/68328/built-in.o: In function `do_trace':
          (.text+0x4c): undefined reference to `syscall_trace_leave'
      
      Change the conditional check that includes these functions to be true for
      the !defined(CONFIG_MMU) case as well.
      Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
      Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
      70c778f7
    • G
      m68knommu: fix 68360 local setting of timer interrupt handler · 1b461d76
      Greg Ungerer 提交于
      Compiling for 68360 based targets fails with:
      
          arch/m68k/platform/68360/config.c: In function ‘hw_tick’:
          arch/m68k/platform/68360/config.c:55:2: error: implicit declaration of function ‘arch_timer_interrupt’
          arch/m68k/platform/68360/config.c: At top level:
          arch/m68k/platform/68360/config.c:64:6: error: conflicting types for ‘hw_timer_init’
          arch/m68k/include/asm/machdep.h:36:13: note: previous declaration of ‘hw_timer_init’ was here
      
      Changes made to hw_timer_init() didn't get updated in the 68328 timer code.
      So process and call the "handler" arg that is now passed into that
      hw_timer_init() function.
      Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
      1b461d76
    • G
      m68knommu: fix 68328 local setting of timer interrupt handler · dc5588ae
      Greg Ungerer 提交于
      Compiling for 68328 based targets fails with:
      
          arch/m68k/platform/68328/timers.c: In function ‘hw_tick’:
          arch/m68k/platform/68328/timers.c:65:2: error: implicit declaration of function ‘arch_timer_interrupt’
          arch/m68k/platform/68328/timers.c: At top level:
          arch/m68k/platform/68328/timers.c:102:6: error: conflicting types for ‘hw_timer_init’
          arch/m68k/include/asm/machdep.h:36:13: note: previous declaration of ‘hw_timer_init’ was here
      
      Changes made to hw_timer_init() didn't get updated in the 68328 timer code.
      So process and call the "handler" arg that is now passed into that
      hw_timer_init() function.
      Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
      dc5588ae
    • G
      m68k: fix inclusion of arch_gettimeoffset for non-MMU 68k classic CPU types · b13b3f51
      Greg Ungerer 提交于
      When building for non-MMU based classic 68k CPU types (like the 68328 for
      example) you get a compilation error:
      
        CC      arch/m68k/kernel/time.o
      arch/m68k/kernel/time.c:91:5: error: redefinition of ‘arch_gettimeoffset’
      include/linux/time.h:145:19: note: previous definition of ‘arch_gettimeoffset’ was here
      
      The arch_gettimeoffset() code is included when building for these CPU types,
      but it shouldn't be. Those machine types do not have
      CONFIG_ARCH_USES_GETTIMEOFFSET set.
      
      The fix is simply to conditionally include the arch_gettimeoffset() code on
      that same config setting that specifies its use or not.
      Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
      Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
      b13b3f51
    • S
      m68knommu: m528x qspi definition fix · f75b0d07
      Steven King 提交于
      The consolidation of the qspi code missed a definition for 528x.
      Signed-off-by: NSteven King <sfking@fdwdc.com>
      Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
      f75b0d07
  3. 11 6月, 2012 4 次提交
  4. 09 6月, 2012 15 次提交
    • L
      Linux 3.5-rc2 · cfaf0251
      Linus Torvalds 提交于
      cfaf0251
    • J
      writeback: Fix lock imbalance in writeback_sb_inodes() · ead188f9
      Jan Kara 提交于
      Fix bug introduced by 169ebd90.  We have to have wb_list_lock locked when
      restarting writeback loop after having waited for inode writeback.
      
      Bug description by Ted Tso:
      
        I can reproduce this fairly easily by using ext4 w/o a journal, running
        under KVM with 1024megs memory, with fsstress (xfstests #13):
      
        [   45.153294] =====================================
        [   45.154784] [ BUG: bad unlock balance detected! ]
        [   45.155591] 3.5.0-rc1-00002-gb22b1f17 #124 Not tainted
        [   45.155591] -------------------------------------
        [   45.155591] flush-254:16/2499 is trying to release lock (&(&wb->list_lock)->rlock) at:
        [   45.155591] [<c022c3da>] writeback_sb_inodes+0x160/0x327
        [   45.155591] but there are no more locks to release!
      Reported-by: NTheodore Ts'o <tytso@mit.edu>
      Tested-by: NTheodore Ts'o <tytso@mit.edu>
      Signed-off-by: NJan Kara <jack@suse.cz>
      Signed-off-by: NFengguang Wu <fengguang.wu@intel.com>
      ead188f9
    • D
      mm, oom: fix badness score underflow · 1e11ad8d
      David Rientjes 提交于
      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: NDave Jones <davej@redhat.com>
      Acked-by: NOleg Nesterov <oleg@redhat.com>
      Signed-off-by: NDavid Rientjes <rientjes@google.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      1e11ad8d
    • L
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 72494504
      Linus Torvalds 提交于
      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
    • R
      sched/fair: fix lots of kernel-doc warnings · cd96891d
      Randy Dunlap 提交于
      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: NRandy Dunlap <rdunlap@xenotime.net>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      cd96891d
    • L
      Revert "drm/i915/crt: Do not rely upon the HPD presence pin" · 8f53369b
      Linus Torvalds 提交于
      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: NLinus Torvalds <torvalds@linux-foundation.org>
      8f53369b
    • L
      Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · 77249539
      Linus Torvalds 提交于
      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
    • L
      Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc · 3e9ca022
      Linus Torvalds 提交于
      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
    • L
      Merge tag 'upstream-3.5-rc2' of git://git.infradead.org/linux-ubifs · e7264308
      Linus Torvalds 提交于
      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
    • L
      Revert "vfs: stop d_splice_alias creating directory aliases" · 32ba9c3f
      Linus Torvalds 提交于
      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: NAl Viro <viro@zeniv.linux.org.uk>
      Acked-by: NJ. Bruce Fields <bfields@fieldses.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      32ba9c3f
    • L
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 0b35d326
      Linus Torvalds 提交于
      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
    • L
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 106544d8
      Linus Torvalds 提交于
      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
    • L
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 03d8f540
      Linus Torvalds 提交于
      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
    • L
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b1e25f41
      Linus Torvalds 提交于
      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
    • L
      Merge tag 'moduleparam-for-linus' of... · 857505fa
      Linus Torvalds 提交于
      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
  5. 08 6月, 2012 9 次提交
    • D
      x86/nmi: Fix section mismatch warnings on 32-bit · eeaaa96a
      Don Zickus 提交于
      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: NWitold Baryluk <baryluk@smp.if.uj.edu.pl>
      Tested-by: NWitold Baryluk <baryluk@smp.if.uj.edu.pl>
      Cc: Jan Beulich <JBeulich@suse.com>
      Signed-off-by: NDon Zickus <dzickus@redhat.com>
      Link: http://lkml.kernel.org/r/1338991542-23000-1-git-send-email-dzickus@redhat.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      eeaaa96a
    • S
      powerpc: Fix kernel panic during kernel module load · 3c752965
      Steffen Rumler 提交于
      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: NSteffen Rumler <steffen.rumler.ext@nsn.com>
      [paulus@samba.org: reworded the description]
      Signed-off-by: NPaul Mackerras <paulus@samba.org>
      3c752965
    • C
      x86/uv: Fix UV2 BAU legacy mode · d5d2d2ee
      Cliff Wickman 提交于
      The SGI Altix UV2 BAU (Broadcast Assist Unit) as used for
      tlb-shootdown (selective broadcast mode) always uses UV2
      broadcast descriptor format. There is no need to clear the
      'legacy' (UV1) mode, because the hardware always uses UV2 mode
      for selective broadcast.
      
      But the BIOS uses general broadcast and legacy mode, and the
      hardware pays attention to the legacy mode bit for general
      broadcast. So the kernel must not clear that mode bit.
      Signed-off-by: NCliff Wickman <cpw@sgi.com>
      Cc: <stable@kernel.org>
      Link: http://lkml.kernel.org/r/E1SccoO-0002Lh-Cb@eag09.americas.sgi.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      d5d2d2ee
    • Y
      x86/mm: Only add extra pages count for the first memory range during... · bd2753b2
      Yinghai Lu 提交于
      x86/mm: Only add extra pages count for the first memory range during pre-allocation early page table space
      
      Robin found this regression:
      
      | I just tried to boot an 8TB system.  It fails very early in boot with:
      | Kernel panic - not syncing: Cannot find space for the kernel page tables
      
      git bisect commit 722bc6b1.
      
      A git revert of that commit does boot past that point on the 8TB
      configuration.
      
      That commit will add up extra pages for all memory range even
      above 4g.
      
      Try to limit that extra page count adding to first entry only.
      Bisected-by: NRobin Holt <holt@sgi.com>
      Tested-by: NRobin Holt <holt@sgi.com>
      Signed-off-by: NYinghai Lu <yinghai@kernel.org>
      Cc: WANG Cong <xiyou.wangcong@gmail.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Link: http://lkml.kernel.org/r/CAE9FiQUj3wyzQxtq9yzBNc9u220p8JZ1FYHG7t%3DMOzJ%3D9BZMYA@mail.gmail.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      bd2753b2
    • D
      Merge branch 'exynos-drm-fixes' of... · 2d5c7cd3
      Dave Airlie 提交于
      Merge branch 'exynos-drm-fixes' of git://git.infradead.org/users/kmpark/linux-samsung into drm-fixes
      
      * 'exynos-drm-fixes' of git://git.infradead.org/users/kmpark/linux-samsung:
        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}
      2d5c7cd3
    • D
      Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes · 6cf98d6e
      Dave Airlie 提交于
      * 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
        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/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
      6cf98d6e
    • B
      init: Drop initcall level output · 19efb72f
      Borislav Petkov 提交于
      9fb48c74 ("params: add 3rd arg to option handler callback
      signature") added similar lines to dmesg:
      
      initlevel:0=early, 4 registered initcalls
      initlevel:1=core, 31 registered initcalls
      initlevel:2=postcore, 11 registered initcalls
      initlevel:3=arch, 7 registered initcalls
      initlevel:4=subsys, 40 registered initcalls
      initlevel:5=fs, 30 registered initcalls
      initlevel:6=device, 250 registered initcalls
      initlevel:7=late, 35 registered initcalls
      
      but they don't contain any info for the general user staring at dmesg.
      I'm very doubtful the count of initcalls registered per level helps
      anyone so drop that output completely.
      
      Cc: Jim Cromie <jim.cromie@gmail.com>
      Cc: Rusty Russell <rusty@rustcorp.com.au>
      Cc: Jason Baron <jbaron@redhat.com>
      Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com>
      Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
      19efb72f
    • R
      module_param: stop double-calling parameters. · ae82fdb1
      Rusty Russell 提交于
      Commit 026cee00 "params:
      <level>_initcall-like kernel parameters" set old-style module
      parameters to level 0.  And we call those level 0 calls where we used
      to, early in start_kernel().
      
      We also loop through the initcall levels and call the levelled
      module_params before the corresponding initcall.  Unfortunately level
      0 is early_init(), so we call the standard module_param calls twice.
      
      (Turns out most things don't care, but at least ubi.mtd does).
      
      Change the level to -1 for standard module_param calls.
      Reported-by: NBenoît Thébaudeau <benoit.thebaudeau@advansee.com>
      Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
      Cc: stable@kernel.org
      ae82fdb1
    • P
      powerpc/time: Sanity check of decrementer expiration is necessary · 860aed25
      Paul Mackerras 提交于
      This reverts 68568add ("powerpc/time: Remove unnecessary sanity check
      of decrementer expiration").  We do need to check whether we have reached
      the expiration time of the next event, because we sometimes get an early
      decrementer interrupt, most notably when we set the decrementer to 1 in
      arch_irq_work_raise().  The effect of not having the sanity check is that
      if timer_interrupt() gets called early, we leave the decrementer set to
      its maximum value, which means we then don't get any more decrementer
      interrupts for about 4 seconds (or longer, depending on timebase
      frequency).  I saw these pauses as a consequence of getting a stray
      hypervisor decrementer interrupt left over from exiting a KVM guest.
      
      This isn't quite a straight revert because of changes to the surrounding
      code, but it restores the same algorithm as was previously used.
      
      Cc: stable@vger.kernel.org
      Acked-by: NAnton Blanchard <anton@samba.org>
      Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
      Signed-off-by: NPaul Mackerras <paulus@samba.org>
      860aed25