1. 27 Nov, 2017 5 commits
    • Linus Torvalds's avatar
      Rename superblock flags (MS_xyz -> SB_xyz) · 1751e8a6
      Linus Torvalds authored
      This is a pure automated search-and-replace of the internal kernel
      superblock flags.
      
      The s_flags are now called SB_*, with the names and the values for the
      moment mirroring the MS_* flags that they're equivalent to.
      
      Note how the MS_xyz flags are the ones passed to the mount system call,
      while the SB_xyz flags are what we then use in sb->s_flags.
      
      The script to do this was:
      
          # places to look in; re security/*: it generally should *not* be
          # touched (that stuff parses mount(2) arguments directly), but
          # there are two places where we really deal with superblock flags.
          FILES="drivers/mtd drivers/staging/lustre fs ipc mm \
                  include/linux/fs.h include/uapi/linux/bfs_fs.h \
                  security/apparmor/apparmorfs.c security/apparmor/include/lib.h"
          # the list of MS_... constants
          SYMS="RDONLY NOSUID NODEV NOEXEC SYNCHRONOUS REMOUNT MANDLOCK \
                DIRSYNC NOATIME NODIRATIME BIND MOVE REC VERBOSE SILENT \
                POSIXACL UNBINDABLE PRIVATE SLAVE SHARED RELATIME KERNMOUNT \
                I_VERSION STRICTATIME LAZYTIME SUBMOUNT NOREMOTELOCK NOSEC BORN \
                ACTIVE NOUSER"
      
          SED_PROG=
          for i in $SYMS; do SED_PROG="$SED_PROG -e s/MS_$i/SB_$i/g"; done
      
          # we want files that contain at least one of MS_...,
          # with fs/namespace.c and fs/pnode.c excluded.
          L=$(for i in $SYMS; do git grep -w -l MS_$i $FILES; done| sort|uniq|grep -v '^fs/namespace.c'|grep -v '^fs/pnode.c')
      
          for f in $L; do sed -i $f $SED_PROG; done
      Requested-by: 's avatarAl Viro <viro@zeniv.linux.org.uk>
      Signed-off-by: 's avatarLinus Torvalds <torvalds@linux-foundation.org>
      1751e8a6
    • Thomas Meyer's avatar
      auxdisplay: img-ascii-lcd: Only build on archs that have IOMEM · 141cbfba
      Thomas Meyer authored
      This avoids the MODPOST error:
      
        ERROR: "devm_ioremap_resource" [drivers/auxdisplay/img-ascii-lcd.ko] undefined!
      Signed-off-by: 's avatarThomas Meyer <thomas@m3y3r.de>
      Acked-by: 's avatarRandy Dunlap <rdunlap@infradead.org>
      Signed-off-by: 's avatarLinus Torvalds <torvalds@linux-foundation.org>
      141cbfba
    • Kirill A. Shutemov's avatar
      mm, thp: Do not make pmd/pud dirty without a reason · 152e93af
      Kirill A. Shutemov authored
      Currently we make page table entries dirty all the time regardless of
      access type and don't even consider if the mapping is write-protected.
      The reasoning is that we don't really need dirty tracking on THP and
      making the entry dirty upfront may save some time on first write to the
      page.
      
      Unfortunately, such approach may result in false-positive
      can_follow_write_pmd() for huge zero page or read-only shmem file.
      
      Let's only make page dirty only if we about to write to the page anyway
      (as we do for small pages).
      
      I've restructured the code to make entry dirty inside
      maybe_p[mu]d_mkwrite(). It also takes into account if the vma is
      write-protected.
      Signed-off-by: 's avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Acked-by: 's avatarMichal Hocko <mhocko@suse.com>
      Cc: Hugh Dickins <hughd@google.com>
      Signed-off-by: 's avatarLinus Torvalds <torvalds@linux-foundation.org>
      152e93af
    • Kirill A. Shutemov's avatar
      mm, thp: Do not make page table dirty unconditionally in touch_p[mu]d() · a8f97366
      Kirill A. Shutemov authored
      Currently, we unconditionally make page table dirty in touch_pmd().
      It may result in false-positive can_follow_write_pmd().
      
      We may avoid the situation, if we would only make the page table entry
      dirty if caller asks for write access -- FOLL_WRITE.
      
      The patch also changes touch_pud() in the same way.
      Signed-off-by: 's avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: Hugh Dickins <hughd@google.com>
      Signed-off-by: 's avatarLinus Torvalds <torvalds@linux-foundation.org>
      a8f97366
    • Linus Torvalds's avatar
      Linux 4.15-rc1 · 4fbd8d19
      Linus Torvalds authored
      4fbd8d19
  2. 26 Nov, 2017 8 commits
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm · bbecb1cf
      Linus Torvalds authored
      Pull ARM fixes from Russell King:
      
       - LPAE fixes for kernel-readonly regions
      
       - Fix for get_user_pages_fast on LPAE systems
      
       - avoid tying decompressor to a particular platform if DEBUG_LL is
         enabled
      
       - BUG if we attempt to return to userspace but the to-be-restored PSR
         value keeps us in privileged mode (defeating an issue that ftracetest
         found)
      
      * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
        ARM: BUG if jumping to usermode address in kernel mode
        ARM: 8722/1: mm: make STRICT_KERNEL_RWX effective for LPAE
        ARM: 8721/1: mm: dump: check hardware RO bit for LPAE
        ARM: make decompressor debug output user selectable
        ARM: fix get_user_pages_fast
      bbecb1cf
    • Linus Torvalds's avatar
      Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · dec0029a
      Linus Torvalds authored
      Pull irq fixes from Thomas Glexiner:
      
       - unbreak the irq trigger type check for legacy platforms
      
       - a handful fixes for ARM GIC v3/4 interrupt controllers
      
       - a few trivial fixes all over the place
      
      * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        genirq/matrix: Make - vs ?: Precedence explicit
        irqchip/imgpdc: Use resource_size function on resource object
        irqchip/qcom: Fix u32 comparison with value less than zero
        irqchip/exiu: Fix return value check in exiu_init()
        irqchip/gic-v3-its: Remove artificial dependency on PCI
        irqchip/gic-v4: Add forward definition of struct irq_domain_ops
        irqchip/gic-v3: pr_err() strings should end with newlines
        irqchip/s3c24xx: pr_err() strings should end with newlines
        irqchip/gic-v3: Fix ppi-partitions lookup
        irqchip/gic-v4: Clear IRQ_DISABLE_UNLAZY again if mapping fails
        genirq: Track whether the trigger type has been set
      dec0029a
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 02fc87b1
      Linus Torvalds authored
      Pull misc x86 fixes from Ingo Molnar:
       - topology enumeration fixes
       - KASAN fix
       - two entry fixes (not yet the big series related to KASLR)
       - remove obsolete code
       - instruction decoder fix
       - better /dev/mem sanity checks, hopefully working better this time
       - pkeys fixes
       - two ACPI fixes
       - 5-level paging related fixes
       - UMIP fixes that should make application visible faults more debuggable
       - boot fix for weird virtualization environment
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
        x86/decoder: Add new TEST instruction pattern
        x86/PCI: Remove unused HyperTransport interrupt support
        x86/umip: Fix insn_get_code_seg_params()'s return value
        x86/boot/KASLR: Remove unused variable
        x86/entry/64: Add missing irqflags tracing to native_load_gs_index()
        x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow
        x86/entry/64: Fix entry_SYSCALL_64_after_hwframe() IRQ tracing
        x86/pkeys/selftests: Fix protection keys write() warning
        x86/pkeys/selftests: Rename 'si_pkey' to 'siginfo_pkey'
        x86/mpx/selftests: Fix up weird arrays
        x86/pkeys: Update documentation about availability
        x86/umip: Print a warning into the syslog if UMIP-protected instructions are used
        x86/smpboot: Fix __max_logical_packages estimate
        x86/topology: Avoid wasting 128k for package id array
        perf/x86/intel/uncore: Cache logical pkg id in uncore driver
        x86/acpi: Reduce code duplication in mp_override_legacy_irq()
        x86/acpi: Handle SCI interrupts above legacy space gracefully
        x86/boot: Fix boot failure when SMP MP-table is based at 0
        x86/mm: Limit mmap() of /dev/mem to valid physical addresses
        x86/selftests: Add test for mapping placement for 5-level paging
        ...
      02fc87b1
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 6830c8db
      Linus Torvalds authored
      Pull scheduler fixes from Ingo Molnar:
       "Misc fixes: a documentation fix, a Sparse warning fix and a debugging
        fix"
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/debug: Fix task state recording/printout
        sched/deadline: Don't use dubious signed bitfields
        sched/deadline: Fix the description of runtime accounting in the documentation
      6830c8db
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 580e3d55
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "Misc fixes: two PMU driver fixes and a memory leak fix"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/core: Fix memory leak triggered by perf --namespace
        perf/x86/intel/uncore: Add event constraint for BDX PCU
        perf/x86/intel: Hide TSX events when RTM is not supported
      580e3d55
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · cd4b5d5d
      Linus Torvalds authored
      Pull static key fix from Ingo Molnar:
       "Fix a boot warning related to bad init ordering of the static keys
        self-test"
      
      * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        jump_label: Invoke jump_label_test() via early_initcall()
      cd4b5d5d
    • Linus Torvalds's avatar
      Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · fcbc38b1
      Linus Torvalds authored
      Pull objtool fixes from Ingo Molnar:
       "A handful of objtool fixes, most of them related to making the UAPI
        header-syncing warnings easier to read and easier to act upon"
      
      * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        tools/headers: Sync objtool UAPI header
        objtool: Fix cross-build
        objtool: Move kernel headers/code sync check to a script
        objtool: Move synced files to their original relative locations
        objtool: Make unreachable annotation inline asms explicitly volatile
        objtool: Add a comment for the unreachable annotation macros
      fcbc38b1
    • Russell King's avatar
      ARM: BUG if jumping to usermode address in kernel mode · 8bafae20
      Russell King authored
      Detect if we are returning to usermode via the normal kernel exit paths
      but the saved PSR value indicates that we are in kernel mode.  This
      could occur due to corrupted stack state, which has been observed with
      "ftracetest".
      
      This ensures that we catch the problem case before we get to user code.
      Signed-off-by: 's avatarRussell King <rmk+kernel@armlinux.org.uk>
      8bafae20
  3. 25 Nov, 2017 7 commits
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 844056fd
      Linus Torvalds authored
      Pull timer updates from Thomas Gleixner:
      
       - The final conversion of timer wheel timers to timer_setup().
      
         A few manual conversions and a large coccinelle assisted sweep and
         the removal of the old initialization mechanisms and the related
         code.
      
       - Remove the now unused VSYSCALL update code
      
       - Fix permissions of /proc/timer_list. I still need to get rid of that
         file completely
      
       - Rename a misnomed clocksource function and remove a stale declaration
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
        m68k/macboing: Fix missed timer callback assignment
        treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
        timer: Remove redundant __setup_timer*() macros
        timer: Pass function down to initialization routines
        timer: Remove unused data arguments from macros
        timer: Switch callback prototype to take struct timer_list * argument
        timer: Pass timer_list pointer to callbacks unconditionally
        Coccinelle: Remove setup_timer.cocci
        timer: Remove setup_*timer() interface
        timer: Remove init_timer() interface
        treewide: setup_timer() -> timer_setup() (2 field)
        treewide: setup_timer() -> timer_setup()
        treewide: init_timer() -> setup_timer()
        treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
        s390: cmm: Convert timers to use timer_setup()
        lightnvm: Convert timers to use timer_setup()
        drivers/net: cris: Convert timers to use timer_setup()
        drm/vc4: Convert timers to use timer_setup()
        block/laptop_mode: Convert timers to use timer_setup()
        net/atm/mpc: Avoid open-coded assignment of timer callback function
        ...
      844056fd
    • Linus Torvalds's avatar
      Merge tag 'arc-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc · ca122fe3
      Linus Torvalds authored
      Pull ARC updates from Vineet Gupta:
      
       - more changes for HS48 cores: supporting MMUv5, detecting new
         micro-arch gizmos
      
       - axs10x platform wiring up reset driver merged in this cycle
      
       - ARC perf driver optimizations
      
      * tag 'arc-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
        ARC: perf: avoid vmalloc backed mmap
        ARCv2: perf: optimize given that num counters <= 32
        ARCv2: perf: tweak overflow interrupt
        ARC: [plat-axs10x] DTS: Add reset controller node to manage ethernet reset
        ARCv2: boot log: updates for HS48: dual-issue, ECC, Loop Buffer
        ARCv2: Accomodate HS48 MMUv5 by relaxing MMU ver checking
        ARC: [plat-axs10x] auto-select AXS101 or AXS103 given the  ISA config
      ca122fe3
    • Linus Torvalds's avatar
      Merge tag 'kbuild-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild · 5e2fda47
      Linus Torvalds authored
      Pull more Kbuild updates from Masahiro Yamada:
      
       - use 'pwd' instead of '/bin/pwd' for portability
      
       - clean up Makefiles
      
       - fix ld-option for clang
      
       - fix malloc'ed data size in Kconfig
      
       - fix parallel building along with coccicheck
      
       - fix a minor issue of package building
      
       - prompt to use "rpm-pkg" instead of "rpm"
      
       - clean up *.i and *.lst patterns by "make clean"
      
      * tag 'kbuild-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        kbuild: drop $(extra-y) from real-objs-y
        kbuild: clean up *.i and *.lst patterns by make clean
        kbuild: rpm: prompt to use "rpm-pkg" if "rpm" target is used
        kbuild: pkg: use --transform option to prefix paths in tar
        coccinelle: fix parallel build with CHECK=scripts/coccicheck
        kconfig/symbol.c: use correct pointer type argument for sizeof
        kbuild: Set KBUILD_CFLAGS before incl. arch Makefile
        kbuild: remove all dummy assignments to obj-
        kbuild: create built-in.o automatically if parent directory wants it
        kbuild: /bin/pwd -> pwd
      5e2fda47
    • Linus Torvalds's avatar
      Merge tag 'afs-fixes-20171124' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs · f61ec2c9
      Linus Torvalds authored
      Pull AFS fixes from David Howells:
      
       - Make AFS file locking work again.
      
       - Don't write to a page that's being written out, but wait for it to
         complete.
      
       - Do d_drop() and d_add() in the right places.
      
       - Put keys on error paths.
      
       - Remove some redundant code.
      
      * tag 'afs-fixes-20171124' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
        afs: remove redundant assignment of dvnode to itself
        afs: cell: Remove unnecessary code in afs_lookup_cell
        afs: Fix signal handling in some file ops
        afs: Fix some dentry handling in dir ops and missing key_puts
        afs: Make afs_write_begin() avoid writing to a page that's being stored
        afs: Fix file locking
      f61ec2c9
    • Linus Torvalds's avatar
      Merge tag 'kvm-4.15-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 7753ea09
      Linus Torvalds authored
      Pull KVM updates from Radim Krčmář:
       "Trimmed second batch of KVM changes for Linux 4.15:
      
         - GICv4 Support for KVM/ARM
      
         - re-introduce support for CPUs without virtual NMI (cc stable) and
           allow testing of KVM without virtual NMI on available CPUs
      
         - fix long-standing performance issues with assigned devices on AMD
           (cc stable)"
      
      * tag 'kvm-4.15-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (30 commits)
        kvm: vmx: Allow disabling virtual NMI support
        kvm: vmx: Reinstate support for CPUs without virtual NMI
        KVM: SVM: obey guest PAT
        KVM: arm/arm64: Don't queue VLPIs on INV/INVALL
        KVM: arm/arm64: Fix GICv4 ITS initialization issues
        KVM: arm/arm64: GICv4: Theory of operations
        KVM: arm/arm64: GICv4: Enable VLPI support
        KVM: arm/arm64: GICv4: Prevent userspace from changing doorbell affinity
        KVM: arm/arm64: GICv4: Prevent a VM using GICv4 from being saved
        KVM: arm/arm64: GICv4: Enable virtual cpuif if VLPIs can be delivered
        KVM: arm/arm64: GICv4: Hook vPE scheduling into vgic flush/sync
        KVM: arm/arm64: GICv4: Use the doorbell interrupt as an unblocking source
        KVM: arm/arm64: GICv4: Add doorbell interrupt handling
        KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint
        KVM: arm/arm64: GICv4: Handle INVALL applied to a vPE
        KVM: arm/arm64: GICv4: Propagate property updates to VLPIs
        KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE
        KVM: arm/arm64: GICv4: Handle CLEAR applied to a VLPI
        KVM: arm/arm64: GICv4: Propagate affinity changes to the physical ITS
        KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI
        ...
      7753ea09
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 83ada031
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       "A small batch of fixes, about 50% tagged for stable and the rest for
        recently merged code.
      
        There's one more fix for the >128T handling on hash. Once a process
        had requested a single mmap above 128T we would then always search
        above 128T. The correct behaviour is to consider the hint address in
        isolation for each mmap request.
      
        Then a couple of fixes for the IMC PMU, a missing EXPORT_SYMBOL in
        VAS, a fix for STRICT_KERNEL_RWX on 32-bit, and a fix to correctly
        identify P9 DD2.1 but in code that is currently not used by default.
      
        Thanks to: Aneesh Kumar K.V, Christophe Leroy, Madhavan Srinivasan,
        Sukadev Bhattiprolu"
      
      * tag 'powerpc-4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/64s: Fix Power9 DD2.1 logic in DT CPU features
        powerpc/perf: Fix IMC_MAX_PMU macro
        powerpc/perf: Fix pmu_count to count only nest imc pmus
        powerpc: Fix boot on BOOK3S_32 with CONFIG_STRICT_KERNEL_RWX
        powerpc/perf/imc: Use cpu_to_node() not topology_physical_package_id()
        powerpc/vas: Export chip_to_vas_id()
        powerpc/64s/slice: Use addr limit when computing slice mask
      83ada031
    • Linus Torvalds's avatar
      Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · eda5d471
      Linus Torvalds authored
      Pull SCSI target updates from Nicholas Bellinger:
      
       "This series is predominantly bug-fixes, with a few small improvements
        that have been outstanding over the last release cycle.
      
        As usual, the associated bug-fixes have CC' tags for stable.
      
        Also, things have been particularly quiet wrt new developments the
        last months, with most folks continuing to focus on stability atop 4.x
        stable kernels for their respective production configurations.
      
        Also at this point, the stable trees have been synced up with
        mainline. This will continue to be a priority, as production users
        tend to run exclusively atop stable kernels, a few releases behind
        mainline.
      
        The highlights include:
      
         - Fix PR PREEMPT_AND_ABORT null pointer dereference regression in
           v4.11+ (tangwenji)
      
         - Fix OOPs during removing TCMU device (Xiubo Li + Zhang Zhuoyu)
      
         - Add netlink command reply supported option for each device (Kenjiro
           Nakayama)
      
         - cxgbit: Abort the TCP connection in case of data out timeout (Varun
           Prakash)
      
         - Fix PR/ALUA file path truncation (David Disseldorp)
      
         - Fix double se_cmd completion during ->cmd_time_out (Mike Christie)
      
         - Fix QUEUE_FULL + SCSI task attribute handling in 4.1+ (Bryant Ly +
           nab)
      
         - Fix quiese during transport_write_pending_qf endless loop (nab)
      
         - Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK in 3.14+
           (Don White + nab)"
      
      * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (35 commits)
        tcmu: Add a missing unlock on an error path
        tcmu: Fix some memory corruption
        iscsi-target: Fix non-immediate TMR reference leak
        iscsi-target: Make TASK_REASSIGN use proper se_cmd->cmd_kref
        target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK
        target: Fix quiese during transport_write_pending_qf endless loop
        target: Fix caw_sem leak in transport_generic_request_failure
        target: Fix QUEUE_FULL + SCSI task attribute handling
        iSCSI-target: Use common error handling code in iscsi_decode_text_input()
        target/iscsi: Detect conn_cmd_list corruption early
        target/iscsi: Fix a race condition in iscsit_add_reject_from_cmd()
        target/iscsi: Modify iscsit_do_crypto_hash_buf() prototype
        target/iscsi: Fix endianness in an error message
        target/iscsi: Use min() in iscsit_dump_data_payload() instead of open-coding it
        target/iscsi: Define OFFLOAD_BUF_SIZE once
        target: Inline transport_put_cmd()
        target: Suppress gcc 7 fallthrough warnings
        target: Move a declaration of a global variable into a header file
        tcmu: fix double se_cmd completion
        target: return SAM_STAT_TASK_SET_FULL for TCM_OUT_OF_RESOURCES
        ...
      eda5d471
  4. 24 Nov, 2017 17 commits
    • Kees Cook's avatar
      m68k/macboing: Fix missed timer callback assignment · 54b8a230
      Kees Cook authored
      This fixes a missed function prototype callback from the timer conversions.
      Reported-by: 's avatarkbuild test robot <fengguang.wu@intel.com>
      Signed-off-by: 's avatarKees Cook <keescook@chromium.org>
      Signed-off-by: 's avatarThomas Gleixner <tglx@linutronix.de>
      Link: https://lkml.kernel.org/r/20171123221902.GA75727@beast
      54b8a230
    • Colin Ian King's avatar
      afs: remove redundant assignment of dvnode to itself · 43dd388b
      Colin Ian King authored
      The assignment of dvnode to itself is redundant and can be removed.
      Cleans up warning detected by cppcheck:
      
      fs/afs/dir.c:975: (warning) Redundant assignment of 'dvnode' to itself.
      
      Fixes: d2ddc776 ("afs: Overhaul volume and server record caching and fileserver rotation")
      Signed-off-by: 's avatarColin Ian King <colin.king@canonical.com>
      Signed-off-by: 's avatarDavid Howells <dhowells@redhat.com>
      43dd388b
    • Gustavo A. R. Silva's avatar
      afs: cell: Remove unnecessary code in afs_lookup_cell · 68327951
      Gustavo A. R. Silva authored
      Due to recent changes this piece of code is no longer needed.
      
      Addresses-Coverity-ID: 1462033
      Link: https://lkml.kernel.org/r/4923.1510957307@warthog.procyon.org.ukSigned-off-by: 's avatarGustavo A. R. Silva <garsilva@embeddedor.com>
      Signed-off-by: 's avatarDavid Howells <dhowells@redhat.com>
      68327951
    • David Howells's avatar
      afs: Fix signal handling in some file ops · 4433b691
      David Howells authored
      afs_mkdir(), afs_create(), afs_link() and afs_symlink() all need to drop
      the target dentry if a signal causes the operation to be killed immediately
      before we try to contact the server.
      Signed-off-by: 's avatarDavid Howells <dhowells@redhat.com>
      4433b691
    • David Howells's avatar
      afs: Fix some dentry handling in dir ops and missing key_puts · bc1527dc
      David Howells authored
      Fix some of dentry handling in AFS directory ops:
      
       (1) Do d_drop() on the new_dentry before assigning a new inode to it in
           afs_vnode_new_inode().  It's fine to do this before calling afs_iget()
           because the operation has taken place on the server.
      
       (2) Replace d_instantiate()/d_rehash() with d_add().
      
       (3) Don't d_drop() the new_dentry in afs_rename() on error.
      
      Also fix afs_link() and afs_rename() to call key_put() on all error paths
      where the key is taken.
      Signed-off-by: 's avatarDavid Howells <dhowells@redhat.com>
      bc1527dc
    • David Howells's avatar
      afs: Make afs_write_begin() avoid writing to a page that's being stored · 5a039c32
      David Howells authored
      Make afs_write_begin() wait for a page that's marked PG_writeback because:
      
       (1) We need to avoid interference with the data being stored so that the
           data on the server ends up in a defined state.
      
       (2) page->private is used to track the window of dirty data within a page,
           but it's also used by the storage code to track what's being written,
           being cleared by the completion notification.  Ownership can't be
           relinquished by the storage code until completion because it a store
           fails, the data must be remarked dirty.
      
      Tracing shows something like the following (edited):
      
       x86_64-linux-gn-15940 [1] afs_page_dirty: vn=ffff8800bef33800 9c75 begin 0-125
          kworker/u8:3-114   [2] afs_page_dirty: vn=ffff8800bef33800 9c75 store+ 0-125
       x86_64-linux-gn-15940 [1] afs_page_dirty: vn=ffff8800bef33800 9c75 begin 0-2052
          kworker/u8:3-114   [2] afs_page_dirty: vn=ffff8800bef33800 9c75 clear 0-2052
          kworker/u8:3-114   [2] afs_page_dirty: vn=ffff8800bef33800 9c75 store 0-0
          kworker/u8:3-114   [2] afs_page_dirty: vn=ffff8800bef33800 9c75 WARN 0-0
      
      The clear (completion) corresponding to the store+ (store continuation from
      a previous page) happens between the second begin (afs_write_begin) and the
      store corresponding to that.  This results in the second store not seeing
      any data to write back, leading to the following warning:
      
      WARNING: CPU: 2 PID: 114 at ../fs/afs/write.c:403 afs_write_back_from_locked_page+0x19d/0x76c [kafs]
      Modules linked in: kafs(E)
      CPU: 2 PID: 114 Comm: kworker/u8:3 Tainted: G            E   4.14.0-fscache+ #242
      Hardware name: ASUS All Series/H97-PLUS, BIOS 2306 10/09/2014
      Workqueue: writeback wb_workfn (flush-afs-2)
      task: ffff8800cad72600 task.stack: ffff8800cad44000
      RIP: 0010:afs_write_back_from_locked_page+0x19d/0x76c [kafs]
      RSP: 0018:ffff8800cad47aa0 EFLAGS: 00010246
      RAX: 0000000000000001 RBX: ffff8800bef33a20 RCX: 0000000000000000
      RDX: 000000000000000f RSI: ffffffff81c5d0e0 RDI: ffff8800cad72e78
      RBP: ffff8800d31ea1e8 R08: ffff8800c1358000 R09: ffff8800ca00e400
      R10: ffff8800cad47a38 R11: ffff8800c5d9e400 R12: 0000000000000000
      R13: ffffea0002d9df00 R14: ffffffffa0023c1c R15: 0000000000007fdf
      FS:  0000000000000000(0000) GS:ffff8800ca700000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: 00007f85ac6c4000 CR3: 0000000001c10001 CR4: 00000000001606e0
      Call Trace:
       ? clear_page_dirty_for_io+0x23a/0x267
       afs_writepages_region+0x1be/0x286 [kafs]
       afs_writepages+0x60/0x127 [kafs]
       do_writepages+0x36/0x70
       __writeback_single_inode+0x12f/0x635
       writeback_sb_inodes+0x2cc/0x452
       __writeback_inodes_wb+0x68/0x9f
       wb_writeback+0x208/0x470
       ? wb_workfn+0x22b/0x565
       wb_workfn+0x22b/0x565
       ? worker_thread+0x230/0x2ac
       process_one_work+0x2cc/0x517
       ? worker_thread+0x230/0x2ac
       worker_thread+0x1d4/0x2ac
       ? rescuer_thread+0x29b/0x29b
       kthread+0x15d/0x165
       ? kthread_create_on_node+0x3f/0x3f
       ? call_usermodehelper_exec_async+0x118/0x11f
       ret_from_fork+0x24/0x30
      Signed-off-by: 's avatarDavid Howells <dhowells@redhat.com>
      5a039c32
    • Thomas Gleixner's avatar
      sched/debug: Fix task state recording/printout · 3f5fe9fe
      Thomas Gleixner authored
      The recent conversion of the task state recording to use task_state_index()
      broke the sched_switch tracepoint task state output.
      
      task_state_index() returns surprisingly an index (0-7) which is then
      printed with __print_flags() applying bitmasks. Not really working and
      resulting in weird states like 'prev_state=t' instead of 'prev_state=I'.
      
      Use TASK_REPORT_MAX instead of TASK_STATE_MAX to report preemption. Build a
      bitmask from the return value of task_state_index() and store it in
      entry->prev_state, which makes __print_flags() work as expected.
      Signed-off-by: 's avatarThomas Gleixner <tglx@linutronix.de>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: stable@vger.kernel.org
      Fixes: efb40f58 ("sched/tracing: Fix trace_sched_switch task-state printing")
      Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1711221304180.1751@nanosSigned-off-by: 's avatarIngo Molnar <mingo@kernel.org>
      3f5fe9fe
    • Masami Hiramatsu's avatar
      x86/decoder: Add new TEST instruction pattern · 12a78d43
      Masami Hiramatsu authored
      The kbuild test robot reported this build warning:
      
        Warning: arch/x86/tools/test_get_len found difference at <jump_table>:ffffffff8103dd2c
      
        Warning: ffffffff8103dd82: f6 09 d8 testb $0xd8,(%rcx)
        Warning: objdump says 3 bytes, but insn_get_length() says 2
        Warning: decoded and checked 1569014 instructions with 1 warnings
      
      This sequence seems to be a new instruction not in the opcode map in the Intel SDM.
      
      The instruction sequence is "F6 09 d8", means Group3(F6), MOD(00)REG(001)RM(001), and 0xd8.
      Intel SDM vol2 A.4 Table A-6 said the table index in the group is "Encoding of Bits 5,4,3 of
      the ModR/M Byte (bits 2,1,0 in parenthesis)"
      
      In that table, opcodes listed by the index REG bits as:
      
        000         001       010 011  100        101        110         111
       TEST Ib/Iz,(undefined),NOT,NEG,MUL AL/rAX,IMUL AL/rAX,DIV AL/rAX,IDIV AL/rAX
      
      So, it seems TEST Ib is assigned to 001.
      
      Add the new pattern.
      Reported-by: 's avatarkbuild test robot <fengguang.wu@intel.com>
      Signed-off-by: 's avatarMasami Hiramatsu <mhiramat@kernel.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: <stable@vger.kernel.org>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: linux-kernel@vger.kernel.org
      Signed-off-by: 's avatarIngo Molnar <mingo@kernel.org>
      12a78d43
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 1d3b78bb
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Fix PCI IDs of 9000 series iwlwifi devices, from Luca Coelho.
      
       2) bpf offload bug fixes from Jakub Kicinski.
      
       3) Fix bpf verifier to NOP out code which is dead at run time because
          due to branch pruning the verifier will not explore such
          instructions. From Alexei Starovoitov.
      
       4) Fix crash when deleting secondary chains in packet scheduler
          classifier. From Roman Kapl.
      
       5) Fix buffer management bugs in smc, from Ursula Braun.
      
       6) Fix regression in anycast route handling, from David Ahern.
      
       7) Fix link settings regression in r8169, from Tobias Jakobi.
      
       8) Add back enough UFO support so that live migration still works, from
          Willem de Bruijn.
      
       9) Linearize enough packet data for the full extent to which the ipvlan
          code will inspect the packet headers, from Gao Feng.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits)
        ipvlan: Fix insufficient skb linear check for ipv6 icmp
        ipvlan: Fix insufficient skb linear check for arp
        geneve: only configure or fill UDP_ZERO_CSUM6_RX/TX info when CONFIG_IPV6
        net: dsa: bcm_sf2: Clear IDDQ_GLOBAL_PWR bit for PHY
        net: accept UFO datagrams from tuntap and packet
        net: realtek: r8169: implement set_link_ksettings()
        net: ipv6: Fixup device for anycast routes during copy
        net/smc: Fix preinitialization of buf_desc in __smc_buf_create()
        net/smc: use sk_rcvbuf as start for rmb creation
        ipv6: Do not consider linkdown nexthops during multipath
        net: sched: fix crash when deleting secondary chains
        net: phy: cortina: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
        bpf: fix branch pruning logic
        bpf: change bpf_perf_event_output arg5 type to ARG_CONST_SIZE_OR_ZERO
        bpf: change bpf_probe_read_str arg2 type to ARG_CONST_SIZE_OR_ZERO
        bpf: remove explicit handling of 0 for arg2 in bpf_probe_read
        bpf: introduce ARG_PTR_TO_MEM_OR_NULL
        i40evf: Use smp_rmb rather than read_barrier_depends
        fm10k: Use smp_rmb rather than read_barrier_depends
        igb: Use smp_rmb rather than read_barrier_depends
        ...
      1d3b78bb
    • Linus Torvalds's avatar
      Merge tag 'platform-drivers-x86-v4.15-2' of git://git.infradead.org/linux-platform-drivers-x86 · 36f20ee2
      Linus Torvalds authored
      Pull x86 platform driver fixes from Darren Hart:
       "Fix two issues resulting from the dell-smbios refactoring and
        introduction of the dell-smbios-wmi dispatcher.
      
        The first ensures a proper error code is returned when kzalloc fails.
      
        The second avoids an issue in older Dell BIOS implementations which
        would fail if the more complex calls were made by limiting those
        platforms to the simple calls such as those used by the existing
        dell-laptop and dell-wmi drivers, preserving their functionality prior
        to the addition of the dell-smbios-wmi dispatcher"
      
      * tag 'platform-drivers-x86-v4.15-2' of git://git.infradead.org/linux-platform-drivers-x86:
        platform/x86: dell-laptop: fix error return code in dell_init()
        platform/x86: dell-smbios-wmi: Disable userspace interface if missing hotfix
      36f20ee2
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 06c94400
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "Two basic fixes: one for the sparse problem with the blacklist flags
        and another for a hang forever in bnx2i"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: Use 'blist_flags_t' for scsi_devinfo flags
        scsi: bnx2fc: Fix hung task messages when a cleanup response is not received during abort
      06c94400
    • Linus Torvalds's avatar
      Merge tag 'sound-fix-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · b64f26c6
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "All commits found here are small fixes for regression or stable:
      
         - PCM timestamp behavior fix that could be seen as a regression
      
         - Remove spurious WARN_ON() from ALSA timer 32bit compat ioctl
      
         - HD-audio HDMI/DP channel mapping fix for 32bit archs
      
         - Fix the previous fix for HD-audio initialization code
      
         - More hardening USB-audio against malicious USB descriptors
      
         - HD-audio quirks/fixes (Realtek codec, AMD controller)
      
         - Missing help text for the recent Intel SST kconfig change"
      
      * tag 'sound-fix-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: hda: Add Raven PCI ID
        ALSA: hda/realtek - Fix ALC700 family no sound issue
        ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization
        ALSA: usb-audio: Add sanity checks in v2 clock parsers
        ALSA: usb-audio: Fix potential zero-division at parsing FU
        ALSA: usb-audio: Fix potential out-of-bound access at parsing SU
        ALSA: usb-audio: Add sanity checks to FE parser
        ALSA: timer: Remove kernel warning at compat ioctl error paths
        ALSA: pcm: update tstamp only if audio_tstamp changed
        ALSA: hda/realtek: Add headset mic support for Intel NUC Skull Canyon
        ALSA: hda: Fix too short HDMI/DP chmap reporting
        ALSA: usb-audio: uac1: Invalidate ctl on interrupt
        ALSA: hda/realtek - Fix ALC275 no sound issue
        ASoC: Intel: Add help text for SND_SOC_INTEL_SST_TOPLEVEL
      b64f26c6
    • Linus Torvalds's avatar
      Merge tag 'drm-for-v4.15-part2' of git://people.freedesktop.org/~airlied/linux · c353bfc6
      Linus Torvalds authored
      Pull more drm updates from Dave Airlie:
       "Fixes/cleanups for rc1, non-desktop flags for VR
      
         - remove the MSM dt-bindings file Rob managed to push in the previous
           pull.
      
         - add a property/edid quirk to denote HMD devices, I had these
           hanging around for a few weeks and Keith had done some work on
           them, they are fairly self contained and small, and only affect
           people using HTC Vive VR headsets so far.
      
         - amdgpu, tegra, tilcdc, fsl fixes
      
         - some imx-drm cleanups I missed, these seemed pretty small, and no
           reason to hold off.
      
        I have one TTM regression fix (fixes bochs-vga in qemu) sitting
        locally awaiting review I'll probably send that in a separate pull
        request tomorrow"
      
      * tag 'drm-for-v4.15-part2' of git://people.freedesktop.org/~airlied/linux: (33 commits)
        dt-bindings: remove file that was added accidentally
        drm/edid: quirk HTC vive headset as non-desktop. [v2]
        drm/fb: add support for not enabling fbcon on non-desktop displays [v2]
        drm: add connector info/property for non-desktop displays [v2]
        drm/amdgpu: fix rmmod KCQ disable failed error
        drm/amdgpu: fix kernel hang when starting VNC server
        drm/amdgpu: don't skip attributes when powerplay is enabled
        drm/amd/pp: fix typecast error in powerplay.
        drm/tilcdc: Remove obsolete "ti,tilcdc,slave" dts binding support
        drm/tegra: sor: Reimplement pad clock
        Revert "drm/radeon: dont switch vt on suspend"
        drm/amd/amdgpu: fix over-bound accessing in amdgpu_cs_wait_any_fence
        drm/amd/powerplay: fix unfreeze level smc message for smu7
        drm/amdgpu:fix memleak
        drm/amdgpu:fix memleak in takedown
        drm/amd/pp: fix dpm randomly failed on Vega10
        drm/amdgpu: set f_mapping on exported DMA-bufs
        drm/amdgpu: Properly allocate VM invalidate eng v2
        drm/fsl-dcu: enable IRQ before drm_atomic_helper_resume()
        drm/fsl-dcu: avoid disabling pixel clock twice on suspend
        ...
      c353bfc6
    • Linus Torvalds's avatar
      Merge tag 'docs-4.15-2' of git://git.lwn.net/linux · 1d3bc636
      Linus Torvalds authored
      Pull documentation updates from Jonathan Corbet:
       "A few late-arriving docs updates that have no real reason to wait.
      
        There's a new "Co-Developed-by" tag described by Greg, and a build
        enhancement from Willy to generate docs warnings during a kernel build
        (but only when additional warnings have been requested in general)"
      
      * tag 'docs-4.15-2' of git://git.lwn.net/linux:
        Add optional check for bad kernel-doc comments
        Documentation: fix profile= options in kernel-parameters.txt
        documentation/svga.txt: update outdated file
        kokr/memory-barriers.txt: Fix typo in paring example
        kokr/memory-barriers/txt: Replace uses of "transitive"
        Documentation/process: add Co-Developed-by: tag for patches with multiple authors
      1d3bc636
    • Linus Torvalds's avatar
      Merge branch 'next-keys' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security · dab0badc
      Linus Torvalds authored
      Pull keys update from James Morris:
       "There's nothing too controversial here:
      
         - Doc fix for keyctl_read().
      
         - time_t -> time64_t replacement.
      
         - Set the module licence on things to prevent tainting"
      
      * 'next-keys' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
        pkcs7: Set the module licence to prevent tainting
        security: keys: Replace time_t with time64_t for struct key_preparsed_payload
        security: keys: Replace time_t/timespec with time64_t
        KEYS: fix in-kernel documentation for keyctl_read()
      dab0badc
    • Linus Torvalds's avatar
      Merge tag 'apparmor-pr-2017-11-21' of... · 26064dea
      Linus Torvalds authored
      Merge tag 'apparmor-pr-2017-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor
      
      Pull apparmor updates from John Johansen:
       "No features this time, just minor cleanups and bug fixes.
      
        Cleanups:
         - fix spelling mistake: "resoure" -> "resource"
         - remove unused redundant variable stop
         - Fix bool initialization/comparison
      
        Bug Fixes:
         - initialized returned struct aa_perms
         - fix leak of null profile name if profile allocation fails
         - ensure that undecidable profile attachments fail
         - fix profile attachment for special unconfined profiles
         - fix locking when creating a new complain profile.
         - fix possible recursive lock warning in __aa_create_ns"
      
      * tag 'apparmor-pr-2017-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
        apparmor: fix possible recursive lock warning in __aa_create_ns
        apparmor: fix locking when creating a new complain profile.
        apparmor: fix profile attachment for special unconfined profiles
        apparmor: ensure that undecidable profile attachments fail
        apparmor: fix leak of null profile name if profile allocation fails
        apparmor: remove unused redundant variable stop
        apparmor: Fix bool initialization/comparison
        apparmor: initialized returned struct aa_perms
        apparmor: fix spelling mistake: "resoure" -> "resource"
      26064dea
    • James Morris's avatar
      Merge tag 'keys-next-20171123' of... · ce44cd8d
      James Morris authored
      Merge tag 'keys-next-20171123' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs into next-keys
      
      Merge keys subsystem changes from David Howells, for v4.15.
      ce44cd8d
  5. 23 Nov, 2017 3 commits