1. 18 Sep, 2018 4 commits
  2. 12 Sep, 2018 7 commits
  3. 11 Sep, 2018 7 commits
    • Adrian Hunter's avatar
      perf tools: Fix maps__find_symbol_by_name() · 03db8b58
      Adrian Hunter authored
      Commit 1c5aae77 ("perf machine: Create maps for x86 PTI entry
      trampolines") revealed a problem with maps__find_symbol_by_name() that
      resulted in probes not being found e.g.
      
      	$ sudo perf probe xsk_mmap
      	xsk_mmap is out of .text, skip it.
      	Probe point 'xsk_mmap' not found.
      	   Error: Failed to add events.
      
      maps__find_symbol_by_name() can optionally return the map of the found
      symbol. It can get the map wrong because, in fact, the symbol is found
      on the map's dso, not allowing for the possibility that the dso has more
      than one map. Fix by always checking the map contains the symbol.
      Reported-by: default avatarBjörn Töpel <bjorn.topel@intel.com>
      Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
      Tested-by: default avatarBjörn Töpel <bjorn.topel@intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: stable@vger.kernel.org
      Fixes: 1c5aae77 ("perf machine: Create maps for x86 PTI entry trampolines")
      Link: http://lkml.kernel.org/r/20180907085116.25782-1-adrian.hunter@intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      03db8b58
    • Arnaldo Carvalho de Melo's avatar
      tools headers uapi: Update tools's copy of linux/if_link.h · 5db48a8d
      Arnaldo Carvalho de Melo authored
      To get the changes in:
      
      	3e7a50ce ("net: report min and max mtu network device settings")
      	2756f68c ("net: bridge: add support for backup port")
      	a25717d2 ("xdp: support simultaneous driver and hw XDP attachment")
      	4f91da26 ("xdp: add per mode attributes for attached programs")
      	f203b76d ("xfrm: Add virtual xfrm interfaces")
      
      Silencing this libbpf build warning:
      
      	Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h'
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Daniel Borkmann <daniel@iogearbox.net>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
      Cc: Steffen Klassert <steffen.klassert@secunet.com>
      Cc: Stephen Hemminger <stephen@networkplumber.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: https://lkml.kernel.org/n/tip-xd9ztioa894zemv8ag8kg64u@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      5db48a8d
    • Arnaldo Carvalho de Melo's avatar
      tools headers uapi: Update tools's copy of linux/vhost.h · 7f28785c
      Arnaldo Carvalho de Melo authored
      To get the changes in:
      
      	c48300c9 ("vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition")
      
      This makes 'perf trace' and other tools in the future using its
      beautifiers in a libbeauty.so library be able to translate these new
      ioctl to strings:
      
        $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh  > /tmp/after
        $ diff -u /tmp/before /tmp/after
        --- /tmp/before	2018-09-11 13:10:57.923038244 -0300
        +++ /tmp/after	2018-09-11 13:11:20.329012685 -0300
        @@ -15,6 +15,7 @@
              [0x22] = "SET_VRING_ERR",
              [0x23] = "SET_VRING_BUSYLOOP_TIMEOUT",
              [0x24] = "GET_VRING_BUSYLOOP_TIMEOUT",
        +     [0x25] = "SET_BACKEND_FEATURES",
              [0x30] = "NET_SET_BACKEND",
              [0x40] = "SCSI_SET_ENDPOINT",
              [0x41] = "SCSI_CLEAR_ENDPOINT",
        @@ -27,4 +28,5 @@
         static const char *vhost_virtio_ioctl_read_cmds[] = {
              [0x00] = "GET_FEATURES",
              [0x12] = "GET_VRING_BASE",
        +	[0x26] = "GET_BACKEND_FEATURES",
        };
        $
      
      We'll also use this to be able to express syscall filters using symbolic
      these symbolic names, something like:
      
      	# perf trace --all-cpus -e ioctl(cmd=*GET_FEATURES)
      
      This silences the following warning during perf's build:
      
        Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h'
        diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: https://lkml.kernel.org/n/tip-35x71oei2hdui9u0tarpimbq@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      7f28785c
    • Arnaldo Carvalho de Melo's avatar
      tools headers uapi: Update tools's copies of kvm headers · 0210c156
      Arnaldo Carvalho de Melo authored
      To get the changes in:
      
      	a4499382 ("KVM: s390: Add huge page enablement control")
      	8fcc4b59 ("kvm: nVMX: Introduce KVM_CAP_NESTED_STATE")
      	be26b3a7 ("arm64: KVM: export the capability to set guest SError syndrome")
      	b7b27fac ("arm/arm64: KVM: Add KVM_GET/SET_VCPU_EVENTS")
      	b0960b95 ("KVM: arm: Add 32bit get/set events support")
      	a3da7b4a ("KVM: s390: add etoken support for guests")
      
      This makes 'perf trace' automagically get aware of these new ioctls:
      
        $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h
        $ tools/perf/trace/beauty/kvm_ioctl.sh  > /tmp/after
        $ diff -u /tmp/before /tmp/after
        --- /tmp/before	2018-09-11 11:18:29.173207586 -0300
        +++ /tmp/after	2018-09-11 11:18:38.488200446 -0300
        @@ -84,6 +84,8 @@
              [0xbb] = "MEMORY_ENCRYPT_REG_REGION",
              [0xbc] = "MEMORY_ENCRYPT_UNREG_REGION",
              [0xbd] = "HYPERV_EVENTFD",
        +     [0xbe] = "GET_NESTED_STATE",
        +     [0xbf] = "SET_NESTED_STATE",
              [0xe0] = "CREATE_DEVICE",
              [0xe1] = "SET_DEVICE_ATTR",
              [0xe2] = "G
      
      And cures the following warning during perf's build:
      
      	Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
      	diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Christian Borntraeger <borntraeger@de.ibm.com>
      Cc: Cornelia Huck <cohuck@redhat.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: David Hildenbrand <david@redhat.com>
      Cc: Dongjiu Geng <gengdongjiu@huawei.com>
      Cc: Eduardo Habkost <ehabkost@redhat.com>
      Cc: James Morse <james.morse@arm.com>
      Cc: Janosch Frank <frankja@linux.ibm.com>
      Cc: Jim Mattson <jmattson@google.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: https://lkml.kernel.org/n/tip-2vvwh2o19orn56di0ksrtgzr@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0210c156
    • Arnaldo Carvalho de Melo's avatar
      tools headers uapi: Update tools's copy of drm/drm.h · 434ea1bf
      Arnaldo Carvalho de Melo authored
      To get the changes in:
      
      	d67b6a20 ("drm: writeback: Add client capability for exposing writeback connectors")
      
      This is for an argument to a DRM ioctl, which is not being prettyfied in
      the 'perf trace' DRM ioctl beautifier, but will now that syscalls are
      starting to have pointer arguments augmented via BPF.
      
      This time around this just cures the following warning during perf's
      build:
      
      	Warning: Kernel ABI header at 'tools/include/uapi/drm/drm.h' differs from latest version at 'include/uapi/drm/drm.h'
      	diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Brian Starkey <brian.starkey@arm.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Eric Anholt <eric@anholt.net>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Liviu Dudau <liviu.dudau@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Sean Paul <seanpaul@chromium.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: https://lkml.kernel.org/n/tip-n7qib1bac6mc6w9oke7r4qdc@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      434ea1bf
    • Arnaldo Carvalho de Melo's avatar
      tools headers uapi: Update tools's copy of asm-generic/unistd.h · f9e6e435
      Arnaldo Carvalho de Melo authored
      To get the changes in:
      
      	db7a2d18 ("asm-generic: unistd.h: Wire up sys_rseq")
      
      That wires up the new 'rsec' system call, which will automagically
      support that syscall in the syscall table used by 'perf trace' on
      arm/arm64.
      
      This cures the following warning during perf's build:
      
      	Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
      	diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Arnd Bergmann <arnd@arndb.de>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Kim Phillips <kim.phillips@arm.com>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
      Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
      Cc: Wang Nan <wangnan0@huawei.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Link: https://lkml.kernel.org/n/tip-vt7k2itnitp1t9p3dp7qeb08@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      f9e6e435
    • Arnaldo Carvalho de Melo's avatar
      tools headers uapi: Update tools's copy of linux/perf_event.h · 0ee03d93
      Arnaldo Carvalho de Melo authored
      To get the changes in:
      
      	09121255 ("perf/UAPI: Clearly mark __PERF_SAMPLE_CALLCHAIN_EARLY as internal use")
      
      This cures the following warning during perf's build:
      
      	Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
      	diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
      
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: https://lkml.kernel.org/n/tip-2vvwh2o19orn56di0ksrtgzr@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0ee03d93
  4. 10 Sep, 2018 4 commits
  5. 09 Sep, 2018 9 commits
  6. 08 Sep, 2018 6 commits
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · f8f65382
      Linus Torvalds authored
      Pull KVM fixes from Radim Krčmář:
       "ARM:
         - Fix a VFP corruption in 32-bit guest
         - Add missing cache invalidation for CoW pages
         - Two small cleanups
      
        s390:
         - Fallout from the hugetlbfs support: pfmf interpretion and locking
         - VSIE: fix keywrapping for nested guests
      
        PPC:
         - Fix a bug where pages might not get marked dirty, causing guest
           memory corruption on migration
         - Fix a bug causing reads from guest memory to use the wrong guest
           real address for very large HPT guests (>256G of memory), leading
           to failures in instruction emulation.
      
        x86:
         - Fix out of bound access from malicious pv ipi hypercalls
           (introduced in rc1)
         - Fix delivery of pending interrupts when entering a nested guest,
           preventing arbitrarily late injection
         - Sanitize kvm_stat output after destroying a guest
         - Fix infinite loop when emulating a nested guest page fault and
           improve the surrounding emulation code
         - Two minor cleanups"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits)
        KVM: LAPIC: Fix pv ipis out-of-bounds access
        KVM: nVMX: Fix loss of pending IRQ/NMI before entering L2
        arm64: KVM: Remove pgd_lock
        KVM: Remove obsolete kvm_unmap_hva notifier backend
        arm64: KVM: Only force FPEXC32_EL2.EN if trapping FPSIMD
        KVM: arm/arm64: Clean dcache to PoC when changing PTE due to CoW
        KVM: s390: Properly lock mm context allow_gmap_hpage_1m setting
        KVM: s390: vsie: copy wrapping keys to right place
        KVM: s390: Fix pfmf and conditional skey emulation
        tools/kvm_stat: re-animate display of dead guests
        tools/kvm_stat: indicate dead guests as such
        tools/kvm_stat: handle guest removals more gracefully
        tools/kvm_stat: don't reset stats when setting PID filter for debugfs
        tools/kvm_stat: fix updates for dead guests
        tools/kvm_stat: fix handling of invalid paths in debugfs provider
        tools/kvm_stat: fix python3 issues
        KVM: x86: Unexport x86_emulate_instruction()
        KVM: x86: Rename emulate_instruction() to kvm_emulate_instruction()
        KVM: x86: Do not re-{try,execute} after failed emulation in L2
        KVM: x86: Default to not allowing emulation retry in kvm_mmu_page_fault
        ...
      f8f65382
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 0f3aa48a
      Linus Torvalds authored
      Pull ARM SoC fixes from Olof Johansson:
       "A few more fixes who have trickled in:
      
         - MMC bus width fixup for some Allwinner platforms
      
         - Fix for NULL deref in ti-aemif when no platform data is passed in
      
         - Fix div by 0 in SCMI code
      
         - Add a missing module alias in a new RPi driver"
      
      * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        memory: ti-aemif: fix a potential NULL-pointer dereference
        firmware: arm_scmi: fix divide by zero when sustained_perf_level is zero
        hwmon: rpi: add module alias to raspberrypi-hwmon
        arm64: allwinner: dts: h6: fix Pine H64 MMC bus width
      0f3aa48a
    • Olof Johansson's avatar
      Merge tag 'sunxi-fixes-for-4.19' of... · a132bb90
      Olof Johansson authored
      Merge tag 'sunxi-fixes-for-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes
      
      Allwinner fixes for 4.19
      
      Just one fix for H6 mmc on the Pine H64: the mmc bus width was missing
      from the device tree. This was added in 4.19-rc1.
      
      * tag 'sunxi-fixes-for-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
        arm64: allwinner: dts: h6: fix Pine H64 MMC bus width
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      a132bb90
    • Nadav Amit's avatar
      x86/mm: Use WRITE_ONCE() when setting PTEs · 9bc4f28a
      Nadav Amit authored
      When page-table entries are set, the compiler might optimize their
      assignment by using multiple instructions to set the PTE. This might
      turn into a security hazard if the user somehow manages to use the
      interim PTE. L1TF does not make our lives easier, making even an interim
      non-present PTE a security hazard.
      
      Using WRITE_ONCE() to set PTEs and friends should prevent this potential
      security hazard.
      
      I skimmed the differences in the binary with and without this patch. The
      differences are (obviously) greater when CONFIG_PARAVIRT=n as more
      code optimizations are possible. For better and worse, the impact on the
      binary with this patch is pretty small. Skimming the code did not cause
      anything to jump out as a security hazard, but it seems that at least
      move_soft_dirty_pte() caused set_pte_at() to use multiple writes.
      Signed-off-by: default avatarNadav Amit <namit@vmware.com>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Josh Poimboeuf <jpoimboe@redhat.com>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Cc: Sean Christopherson <sean.j.christopherson@intel.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: stable@vger.kernel.org
      Link: https://lkml.kernel.org/r/20180902181451.80520-1-namit@vmware.com
      9bc4f28a
    • Thomas Gleixner's avatar
      x86/apic/vector: Make error return value negative · 47b7360c
      Thomas Gleixner authored
      activate_managed() returns EINVAL instead of -EINVAL in case of
      error. While this is unlikely to happen, the positive return value would
      cause further malfunction at the call site.
      
      Fixes: 2db1f959 ("x86/vector: Handle managed interrupts proper")
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: stable@vger.kernel.org
      47b7360c
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · d7b686eb
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
      
       - bugfixes for uniphier, i801, and xiic drivers
      
       - ID removal (never produced) for imx
      
       - one MAINTAINER addition
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: xiic: Record xilinx i2c with Zynq fragment
        i2c: xiic: Make the start and the byte count write atomic
        i2c: i801: fix DNV's SMBCTRL register offset
        i2c: imx-lpi2c: Remove mx8dv compatible entry
        dt-bindings: imx-lpi2c: Remove mx8dv compatible entry
        i2c: uniphier-f: issue STOP only for last message or I2C_M_STOP
        i2c: uniphier: issue STOP only for last message or I2C_M_STOP
      d7b686eb
  7. 07 Sep, 2018 3 commits
    • Linus Torvalds's avatar
      Merge tag 'arc-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc · 2c34a0e0
      Linus Torvalds authored
      Pull ARC updates from Vineet Gupta:
      
       - Fix for atomic_fetch_#op  [Will Deacon]
      
       - Enable per device IOC [Eugeniy Paltsev]
      
       - Remove redundant gcc version checks [Masahiro Yamada]
      
       - Miscll platform config/DT updates [Alexey Brodkin]
      
      * tag 'arc-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
        ARC: don't check for HIGHMEM pages in arch_dma_alloc
        ARC: IOC: panic if both IOC and ZONE_HIGHMEM enabled
        ARC: dma [IOC] Enable per device io coherency
        ARC: dma [IOC]: mark DMA devices connected as dma-coherent
        ARC: atomics: unbork atomic_fetch_##op()
        arc: remove redundant GCC version checks
        ARC: sort Kconfig
        ARC: cleanup show_faulting_vma()
        ARC: [plat-axs*]: Enable SWAP
        ARC: [plat-axs*/plat-hsdk]: Allow U-Boot to pass MAC-address to the kernel
        ARC: configs: cleanup
      2c34a0e0
    • David Howells's avatar
      afs: Fix cell specification to permit an empty address list · ecfe951f
      David Howells authored
      Fix the cell specification mechanism to allow cells to be pre-created
      without having to specify at least one address (the addresses will be
      upcalled for).
      
      This allows the cell information preload service to avoid the need to issue
      loads of DNS lookups during boot to get the addresses for each cell (500+
      lookups for the 'standard' cell list[*]).  The lookups can be done later as
      each cell is accessed through the filesystem.
      
      Also remove the print statement that prints a line every time a new cell is
      added.
      
      [*] There are 144 cells in the list.  Each cell is first looked up for an
          SRV record, and if that fails, for an AFSDB record.  These get a list
          of server names, each of which then has to be looked up to get the
          addresses for that server.  E.g.:
      
      	dig srv _afs3-vlserver._udp.grand.central.org
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      ecfe951f
    • Linus Torvalds's avatar
      Merge tag 'md/4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md · 3d0e7a9e
      Linus Torvalds authored
      Pull MD fixes from Shaohua Li:
      
       - Fix a locking issue for md-cluster (Guoqing)
      
       - Fix a sync crash for raid10 (Ni)
      
       - Fix a reshape bug with raid5 cache enabled (me)
      
      * tag 'md/4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
        md-cluster: release RESYNC lock after the last resync message
        RAID10 BUG_ON in raise_barrier when force is true and conf->barrier is 0
        md/raid5-cache: disable reshape completely
      3d0e7a9e