1. 17 May, 2016 3 commits
    • Anna Schumaker's avatar
      NFS: Add COPY nfs operation · 2e72448b
      Anna Schumaker authored
      This adds the copy_range file_ops function pointer used by the
      sys_copy_range() function call.  This patch only implements sync copies,
      so if an async copy happens we decode the stateid and ignore it.
      Signed-off-by: default avatarAnna Schumaker <bjschuma@netapp.com>
      2e72448b
    • Anna Schumaker's avatar
      NFS: Add nfs_commit_file() · 67911c8f
      Anna Schumaker authored
      Copy will use this to set up a commit request for a generic range.  I
      don't want to allocate a new pagecache entry for the file, so I needed
      to change parts of the commit path to handle requests with a null
      wb_page.
      Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
      67911c8f
    • Olga Kornievskaia's avatar
      Fixing oops in callback path · c2985d00
      Olga Kornievskaia authored
      Commit 80f96427 ("NFSv4.x: Enforce the ca_maxreponsesize_cached
      on the back channel") causes an oops when it receives a callback with
      cachethis=yes.
      
      [  109.667378] BUG: unable to handle kernel NULL pointer dereference at 00000000000002c8
      [  109.669476] IP: [<ffffffffa08a3e68>] nfs4_callback_compound+0x4f8/0x690 [nfsv4]
      [  109.671216] PGD 0
      [  109.671736] Oops: 0000 [#1] SMP
      [  109.705427] CPU: 1 PID: 3579 Comm: nfsv4.1-svc Not tainted 4.5.0-rc1+ #1
      [  109.706987] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/20/2014
      [  109.709468] task: ffff8800b4408000 ti: ffff88008448c000 task.ti: ffff88008448c000
      [  109.711207] RIP: 0010:[<ffffffffa08a3e68>]  [<ffffffffa08a3e68>] nfs4_callback_compound+0x4f8/0x690 [nfsv4]
      [  109.713521] RSP: 0018:ffff88008448fca0  EFLAGS: 00010286
      [  109.714762] RAX: ffff880081ee202c RBX: ffff8800b7b5b600 RCX: 0000000000000001
      [  109.716427] RDX: 0000000000000008 RSI: 0000000000000008 RDI: 0000000000000000
      [  109.718091] RBP: ffff88008448fda8 R08: 0000000000000000 R09: 000000000b000000
      [  109.719757] R10: ffff880137786000 R11: ffff8800b7b5b600 R12: 0000000001000000
      [  109.721415] R13: 0000000000000002 R14: 0000000053270000 R15: 000000000000000b
      [  109.723061] FS:  0000000000000000(0000) GS:ffff880139640000(0000) knlGS:0000000000000000
      [  109.724931] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [  109.726278] CR2: 00000000000002c8 CR3: 0000000034d50000 CR4: 00000000001406e0
      [  109.727972] Stack:
      [  109.728465]  ffff880081ee202c ffff880081ee201c 000000008448fcc0 ffff8800baccb800
      [  109.730349]  ffff8800baccc800 ffffffffa08d0380 0000000000000000 0000000000000000
      [  109.732211]  ffff8800b7b5b600 0000000000000001 ffffffff81d073c0 ffff880081ee3090
      [  109.734056] Call Trace:
      [  109.734657]  [<ffffffffa03795d4>] svc_process_common+0x5c4/0x6c0 [sunrpc]
      [  109.736267]  [<ffffffffa0379a4c>] bc_svc_process+0x1fc/0x360 [sunrpc]
      [  109.737775]  [<ffffffffa08a2c2c>] nfs41_callback_svc+0x10c/0x1d0 [nfsv4]
      [  109.739335]  [<ffffffff810cb380>] ? prepare_to_wait_event+0xf0/0xf0
      [  109.740799]  [<ffffffffa08a2b20>] ? nfs4_callback_svc+0x50/0x50 [nfsv4]
      [  109.742349]  [<ffffffff810a6998>] kthread+0xd8/0xf0
      [  109.743495]  [<ffffffff810a68c0>] ? kthread_park+0x60/0x60
      [  109.744776]  [<ffffffff816abc4f>] ret_from_fork+0x3f/0x70
      [  109.746037]  [<ffffffff810a68c0>] ? kthread_park+0x60/0x60
      [  109.747324] Code: cc 45 31 f6 48 8b 85 00 ff ff ff 44 89 30 48 8b 85 f8 fe ff ff 44 89 20 48 8b 9d 38 ff ff ff 48 8b bd 30 ff ff ff 48 85 db 74 4c <4c> 8b af c8 02 00 00 4d 8d a5 08 02 00 00 49 81 c5 98 02 00 00
      [  109.754361] RIP  [<ffffffffa08a3e68>] nfs4_callback_compound+0x4f8/0x690 [nfsv4]
      [  109.756123]  RSP <ffff88008448fca0>
      [  109.756951] CR2: 00000000000002c8
      [  109.757738] ---[ end trace 2b8555511ab5dfb4 ]---
      [  109.758819] Kernel panic - not syncing: Fatal exception
      [  109.760126] Kernel Offset: disabled
      [  118.938934] ---[ end Kernel panic - not syncing: Fatal exception
      
      It doesn't unlock the table nor does it set the cps->clp pointer which
      is later needed by nfs4_cb_free_slot().
      
      Fixes: 80f96427 ("NFSv4.x: Enforce the ca_maxresponsesize_cached ...")
      CC: stable@vger.kernel.org
      Signed-off-by: default avatarOlga Kornievskaia <kolga@netapp.com>
      Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
      c2985d00
  2. 09 May, 2016 13 commits
  3. 08 May, 2016 1 commit
  4. 07 May, 2016 7 commits
  5. 06 May, 2016 16 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 07837831
      Linus Torvalds authored
      Pull writeback fix from Jens Axboe:
       "Just a single fix for domain aware writeback, fixing a regression that
        can cause balance_dirty_pages() to keep looping while not getting any
        work done"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        writeback: Fix performance regression in wb_over_bg_thresh()
      07837831
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3f86ba5d
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar:
       "This contains two fixes: a boot fix for older SGI/UV systems, and an
        APIC calibration fix"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/tsc: Read all ratio bits from MSR_PLATFORM_INFO
        x86/platform/UV: Bring back the call to map_low_mmrs in uv_system_init
      3f86ba5d
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 01ec7167
      Linus Torvalds authored
      Pull power management and ACPI fixes from Rafael Wysocki:
       "Fixes for problems introduced or discovered recently (intel_pstate,
        sti-cpufreq, ARM64 cpuidle, Operating Performance Points framework,
        generic device properties framework) and one fix for a hotplug-related
        deadlock in ACPICA that's been there forever, but is nasty enough.
      
        Specifics:
      
         - Fix for a recent regression in the intel_pstate driver causing it
           to fail to restore the HWP (HW-managed P-states) configuration of
           the boot CPU after suspend-to-RAM (Rafael Wysocki).
      
         - Fix for two recent regressions in the intel_pstate driver, one that
           can trigger a divide by zero if the driver is accessed via sysfs
           before it manages to take the first sample and one causing it to
           fail to update a structure field used in a trace point, so the
           information coming from it is less useful (Rafael Wysocki).
      
         - Fix for a problem in the sti-cpufreq driver introduced during the
           4.5 cycle that causes it to break CPU PM in multi-platform kernels
           by registering cpufreq-dt (which subsequently doesn't work)
           unconditionally and preventing the driver that would actually work
           from registering (Sudeep Holla).
      
         - Stable-candidate fix for an ARM64 cpuidle issue causing idle state
           usage counters to be incorrectly updated for idle states that were
           not entered due to errors (James Morse).
      
         - Fix for a recently introduced issue in the OPP (Operating
           Performance Points) framework causing it to print bogus error
           messages for missing optional regulators (Viresh Kumar).
      
         - Fix for a recently introduced issue in the generic device
           properties framework that may cause it to attempt to dereferece and
           invalid pointer in some cases (Heikki Krogerus).
      
         - Fix for a deadlock in the ACPICA core that may be triggered by
           device (eg Thunderbolt) hotplug (Prarit Bhargava)"
      
      * tag 'pm+acpi-4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PM / OPP: Remove useless check
        ACPICA: Dispatcher: Update thread ID for recursive method calls
        intel_pstate: Fix intel_pstate_get()
        cpufreq: intel_pstate: Fix HWP on boot CPU after system resume
        cpufreq: st: enable selective initialization based on the platform
        ARM: cpuidle: Pass on arm_cpuidle_suspend()'s return value
        device property: Avoid potential dereferences of invalid pointers
      01ec7167
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 17d25a33
      Linus Torvalds authored
      Pull scheduler fix from Ingo Molnar:
       "This contains a single fix that fixes a nohz tick stopping bug when
        mixed-poliocy SCHED_FIFO and SCHED_RR tasks are present on a runqueue"
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        nohz/full, sched/rt: Fix missed tick-reenabling bug in sched_can_stop_tick()
      17d25a33
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 18fb92c3
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "This tree contains two fixes: new Intel CPU model numbers and an
        AMD/iommu uncore PMU driver fix"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/x86/amd/iommu: Do not register a task ctx for uncore like PMUs
        perf/x86: Add model numbers for Kabylake CPUs
      18fb92c3
    • Linus Torvalds's avatar
      Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · cade8184
      Linus Torvalds authored
      Pull EFI fixes from Ingo Molnar:
       "This tree contains three fixes: a console spam fix, a file pattern fix
        and a sysfb_efi fix for a bug that triggered on older ThinkPads"
      
      * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/sysfb_efi: Fix valid BAR address range check
        x86/efi-bgrt: Switch all pr_err() to pr_notice() for invalid BGRT
        MAINTAINERS: Remove asterisk from EFI directory names
      cade8184
    • Linus Torvalds's avatar
      Merge branch 'parisc-4.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 83a395d3
      Linus Torvalds authored
      Pull parisc fix from Helge Deller:
       "Patch from Dmitry V Levin to fix a kernel crash when a straced process
        calls the (invalid) syscall which is equal to value of __NR_Linux_syscalls"
      
      * 'parisc-4.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
        parisc: fix a bug when syscall number of tracee is __NR_Linux_syscalls
      83a395d3
    • Linus Torvalds's avatar
      Merge tag 'arc-4.6-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc · dd287690
      Linus Torvalds authored
      Pull ARC fixes from Vineet Gupta:
       "Late in the cycle, but this has fixes for couple of issues: a PAE40
        boot crash and Arnd spotting lack of barriers in BE io-accessors.
      
        The 3rd patch for enabling highmem in low physical mem ;-) honestly is
        more than a "fix" but its been in works for some time, seems to be
        stable in testing and enables 2 of our customers to go forward with
        4.6 kernel.
      
         - Fix for PTE truncation in PAE40 builds
         - Fix for big endian IO accessors lacking IO barrier
         - Allow HIGHMEM to work with low physical addresses"
      
      * tag 'arc-4.6-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
        ARC: support HIGHMEM even without PAE40
        ARC: Fix PAE40 boot failures due to PTE truncation
        ARC: Add missing io barriers to io{read,write}{16,32}be()
      dd287690
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 4883d11e
      Linus Torvalds authored
      Pull powerpc fix from Michael Ellerman:
       "Fix bad inline asm constraint in create_zero_mask() from Anton
        Blanchard"
      
      * tag 'powerpc-4.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc: Fix bad inline asm constraint in create_zero_mask()
      4883d11e
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 659a1823
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Fixes for i915, amdgpu/radeon and imx.
      
        The IMX fix is for an autoloading regression found in Fedora.  The
        radeon fixes, are the same fix to amdgpu/radeon to avoid a hardware
        lockup in some circumstances with a bad mode, and a double free bug I
        took a few hours chasing down the other morning.
      
        The i915 fixes are across the board, all stable material, and fixing
        some hangs and suspend/resume issues, along with a live status
        regressions"
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        gpu: ipu-v3: Fix imx-ipuv3-crtc module autoloading
        drm/amdgpu: make sure vertical front porch is at least 1
        drm/radeon: make sure vertical front porch is at least 1
        drm/amdgpu: set metadata pointer to NULL after freeing.
        drm/i915: Make RPS EI/thresholds multiple of 25 on SNB-BDW
        drm/i915: Fake HDMI live status
        drm/i915: Fix eDP low vswing for Broadwell
        drm/i915/ddi: Fix eDP VDD handling during booting and suspend/resume
        drm/i915: Fix system resume if PCI device remained enabled
        drm/i915: Avoid stalling on pending flips for legacy cursor updates
      659a1823
    • Dmitry V. Levin's avatar
      parisc: fix a bug when syscall number of tracee is __NR_Linux_syscalls · f0b22d1b
      Dmitry V. Levin authored
      Do not load one entry beyond the end of the syscall table when the
      syscall number of a traced process equals to __NR_Linux_syscalls.
      Similar bug with regular processes was fixed by commit 3bb457af
      ("[PARISC] Fix bug when syscall nr is __NR_Linux_syscalls").
      
      This bug was found by strace test suite.
      
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarDmitry V. Levin <ldv@altlinux.org>
      Acked-by: default avatarHelge Deller <deller@gmx.de>
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      f0b22d1b
    • Rafael J. Wysocki's avatar
      Merge branches 'pm-opp-fixes', 'pm-cpufreq-fixes' and 'pm-cpuidle-fixes' · 5f2f88e3
      Rafael J. Wysocki authored
      * pm-opp-fixes:
        PM / OPP: Remove useless check
      
      * pm-cpufreq-fixes:
        intel_pstate: Fix intel_pstate_get()
        cpufreq: intel_pstate: Fix HWP on boot CPU after system resume
        cpufreq: st: enable selective initialization based on the platform
      
      * pm-cpuidle-fixes:
        ARM: cpuidle: Pass on arm_cpuidle_suspend()'s return value
      5f2f88e3
    • Rafael J. Wysocki's avatar
      Merge branches 'acpica-fixes' and 'device-properties-fixes' · 7c21b38c
      Rafael J. Wysocki authored
      * acpica-fixes:
        ACPICA: Dispatcher: Update thread ID for recursive method calls
      
      * device-properties-fixes:
        device property: Avoid potential dereferences of invalid pointers
      7c21b38c
    • Chen Yu's avatar
      x86/tsc: Read all ratio bits from MSR_PLATFORM_INFO · 886123fb
      Chen Yu authored
      Currently we read the tsc radio: ratio = (MSR_PLATFORM_INFO >> 8) & 0x1f;
      
      Thus we get bit 8-12 of MSR_PLATFORM_INFO, however according to the SDM
      (35.5), the ratio bits are bit 8-15.
      
      Ignoring the upper bits can result in an incorrect tsc ratio, which causes the
      TSC calibration and the Local APIC timer frequency to be incorrect.
      
      Fix this problem by masking 0xff instead.
      
      [ tglx: Massaged changelog ]
      
      Fixes: 7da7c156 "x86, tsc: Add static (MSR) TSC calibration on Intel Atom SoCs"
      Signed-off-by: default avatarChen Yu <yu.c.chen@intel.com>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: stable@vger.kernel.org
      Cc: Bin Gao <bin.gao@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Link: http://lkml.kernel.org/r/1462505619-5516-1-git-send-email-yu.c.chen@intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      886123fb
    • Linus Torvalds's avatar
      Merge branch 'akpm' (patches from Andrew) · 9caa7e78
      Linus Torvalds authored
      Merge fixes from Andrew Morton:
       "14 fixes"
      
      * emailed patches from Andrew Morton <akpm@linux-foundation.org>:
        byteswap: try to avoid __builtin_constant_p gcc bug
        lib/stackdepot: avoid to return 0 handle
        mm: fix kcompactd hang during memory offlining
        modpost: fix module autoloading for OF devices with generic compatible property
        proc: prevent accessing /proc/<PID>/environ until it's ready
        mm/zswap: provide unique zpool name
        mm: thp: kvm: fix memory corruption in KVM with THP enabled
        MAINTAINERS: fix Rajendra Nayak's address
        mm, cma: prevent nr_isolated_* counters from going negative
        mm: update min_free_kbytes from khugepaged after core initialization
        huge pagecache: mmap_sem is unlocked when truncation splits pmd
        rapidio/mport_cdev: fix uapi type definitions
        mm: memcontrol: let v2 cgroups follow changes in system swappiness
        mm: thp: correct split_huge_pages file permission
      9caa7e78
    • Linus Torvalds's avatar
      mailmap: add John Paul Adrian Glaubitz · 43a3e837
      Linus Torvalds authored
      Apparently patchwork ended up truncating the full name.
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      43a3e837