1. 09 Aug, 2017 4 commits
  2. 07 Aug, 2017 2 commits
  3. 02 Aug, 2017 1 commit
  4. 01 Aug, 2017 1 commit
    • Jens Axboe's avatar
      blk-mq: add warning to __blk_mq_run_hw_queue() for ints disabled · b7a71e66
      Jens Axboe authored
      We recently had a bug in the IPR SCSI driver, where it would end up
      making the SCSI mid layer run the mq hardware queue with interrupts
      disabled. This isn't legal, since the software queue locking relies
      on never being grabbed from interrupt context. Additionally, drivers
      that set BLK_MQ_F_BLOCKING may schedule from this context.
      
      Add a WARN_ON_ONCE() to catch bad users up front.
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      b7a71e66
  5. 29 Jul, 2017 14 commits
    • Jens Axboe's avatar
      blk-mq: blk_mq_requeue_work() doesn't need to save IRQ flags · 18e9781d
      Jens Axboe authored
      We know we're in process context, so don't bother using the
      IRQ safe versions of the spin lock.
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      18e9781d
    • Arnd Bergmann's avatar
      block: DAC960: shut up format-overflow warning · 33027c2b
      Arnd Bergmann authored
      gcc-7 points out that a large controller number would overflow the
      string length for the procfs name and the firmware version string:
      
      drivers/block/DAC960.c: In function 'DAC960_Probe':
      drivers/block/DAC960.c:6591:38: warning: 'sprintf' may write a terminating nul past the end of the destination [-Wformat-overflow=]
      drivers/block/DAC960.c: In function 'DAC960_V1_ReadControllerConfiguration':
      drivers/block/DAC960.c:1681:40: error: '%02d' directive writing between 2 and 3 bytes into a region of size between 2 and 5 [-Werror=format-overflow=]
      drivers/block/DAC960.c:1681:40: note: directive argument in the range [0, 255]
      drivers/block/DAC960.c:1681:3: note: 'sprintf' output between 10 and 14 bytes into a destination of size 12
      
      Both of these seem appropriately sized, and using snprintf()
      instead of sprintf() improves this by ensuring that even
      incorrect data won't cause undefined behavior here.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      33027c2b
    • Shaohua Li's avatar
      block: use standard blktrace API to output cgroup info for debug notes · 35fe6d76
      Shaohua Li authored
      Currently cfq/bfq/blk-throttle output cgroup info in trace in their own
      way. Now we have standard blktrace API for this, so convert them to use
      it.
      
      Note, this changes the behavior a little bit. cgroup info isn't output
      by default, we only do this with 'blk_cgroup' option enabled. cgroup
      info isn't output as a string by default too, we only do this with
      'blk_cgname' option enabled. Also cgroup info is output in different
      position of the note string. I think these behavior changes aren't a big
      issue (actually we make trace data shorter which is good), since the
      blktrace note is solely for debugging.
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      35fe6d76
    • Shaohua Li's avatar
      blktrace: add an option to allow displaying cgroup path · 69fd5c39
      Shaohua Li authored
      By default we output cgroup id in blktrace. This adds an option to
      display cgroup path. Since get cgroup path is a relativly heavy
      operation, we don't enable it by default.
      
      with the option enabled, blktrace will output something like this:
      dd-1353  [007] d..2   293.015252:   8,0   /test/level  D   R 24 + 8 [dd]
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      69fd5c39
    • Shaohua Li's avatar
      block: always attach cgroup info into bio · 007cc56b
      Shaohua Li authored
      blkcg_bio_issue_check() already gets blkcg for a BIO.
      bio_associate_blkcg() uses a percpu refcounter, so it's a very cheap
      operation. There is no point we don't attach the cgroup info into bio at
      blkcg_bio_issue_check. This also makes blktrace outputs correct cgroup
      info.
      Acked-by: default avatarTejun Heo <tj@kernel.org>
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      007cc56b
    • Shaohua Li's avatar
      blktrace: export cgroup info in trace · ca1136c9
      Shaohua Li authored
      Currently blktrace isn't cgroup aware. blktrace prints out task name of
      current context, but the task of current context isn't always in the
      cgroup where the BIO comes from. We can't use task name to find out IO
      cgroup. For example, Writeback BIOs always comes from flusher thread but
      the BIOs are for different blk cgroups. Request could be requeued and
      dispatched from completely different tasks. MD/DM are another examples.
      
      This patch tries to fix the gap. We print out cgroup fhandle info in
      blktrace. Userspace can use open_by_handle_at() syscall to find the
      cgroup by fhandle. Or userspace can use name_to_handle_at() syscall to
      find fhandle for a cgroup and use a BPF program to filter out blktrace
      for a specific cgroup.
      
      We add a new 'blk_cgroup' trace option for blk tracer. It's default off.
      Application which doesn't know the new option isn't affected.  When it's
      on, we output fhandle info right after blk_io_trace with an extra bit
      set in event action. So from application point of view, blktrace with
      the option will output new actions.
      
      I didn't change blk trace event yet, since I'm not sure if changing the
      trace event output is an ABI issue. If not, I'll do it later.
      Acked-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      ca1136c9
    • Shaohua Li's avatar
      cgroup: export fhandle info for a cgroup · 121508df
      Shaohua Li authored
      Add an API to export cgroup fhandle info. We don't export a full 'struct
      file_handle', there are unrequired info. Sepcifically, cgroup is always
      a directory, so we don't need a 'FILEID_INO32_GEN_PARENT' type fhandle,
      we only need export the inode number and generation number just like
      what generic_fh_to_dentry does. And we can avoid the overhead of getting
      an inode too, since kernfs_node_id (ino and generation) has all the info
      required.
      Acked-by: default avatarTejun Heo <tj@kernel.org>
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      121508df
    • Shaohua Li's avatar
      kernfs: add exportfs operations · aa818825
      Shaohua Li authored
      Now we have the facilities to implement exportfs operations. The idea is
      cgroup can export the fhandle info to userspace, then userspace uses
      fhandle to find the cgroup name. Another example is userspace can get
      fhandle for a cgroup and BPF uses the fhandle to filter info for the
      cgroup.
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      aa818825
    • Shaohua Li's avatar
      kernfs: introduce kernfs_node_id · c53cd490
      Shaohua Li authored
      inode number and generation can identify a kernfs node. We are going to
      export the identification by exportfs operations, so put ino and
      generation into a separate structure. It's convenient when later patches
      use the identification.
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      c53cd490
    • Shaohua Li's avatar
      kernfs: don't set dentry->d_fsdata · 319ba91d
      Shaohua Li authored
      When working on adding exportfs operations in kernfs, I found it's hard
      to initialize dentry->d_fsdata in the exportfs operations. Looks there
      is no way to do it without race condition. Look at the kernfs code
      closely, there is no point to set dentry->d_fsdata. inode->i_private
      already points to kernfs_node, and we can get inode from a dentry. So
      this patch just delete the d_fsdata usage.
      Acked-by: default avatarTejun Heo <tj@kernel.org>
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      319ba91d
    • Shaohua Li's avatar
      kernfs: add an API to get kernfs node from inode number · ba16b284
      Shaohua Li authored
      Add an API to get kernfs node from inode number. We will need this to
      implement exportfs operations.
      
      This API will be used in blktrace too later, so it should be as fast as
      possible. To make the API lock free, kernfs node is freed in RCU
      context. And we depend on kernfs_node count/ino number to filter out
      stale kernfs nodes.
      Acked-by: default avatarTejun Heo <tj@kernel.org>
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      ba16b284
    • Shaohua Li's avatar
      kernfs: implement i_generation · 4a3ef68a
      Shaohua Li authored
      Set i_generation for kernfs inode. This is required to implement
      exportfs operations. The generation is 32-bit, so it's possible the
      generation wraps up and we find stale files. To reduce the posssibility,
      we don't reuse inode numer immediately. When the inode number allocation
      wraps, we increase generation number. In this way generation/inode
      number consist of a 64-bit number which is unlikely duplicated. This
      does make the idr tree more sparse and waste some memory. Since idr
      manages 32-bit keys, idr uses a 6-level radix tree, each level covers 6
      bits of the key. In a 100k inode kernfs, the worst case will have around
      300k radix tree node. Each node is 576bytes, so the tree will use about
      ~150M memory. Sounds not too bad, if this really is a problem, we should
      find better data structure.
      Acked-by: default avatarTejun Heo <tj@kernel.org>
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      4a3ef68a
    • Shaohua Li's avatar
      kernfs: use idr instead of ida to manage inode number · 7d35079f
      Shaohua Li authored
      kernfs uses ida to manage inode number. The problem is we can't get
      kernfs_node from inode number with ida. Switching to use idr, next patch
      will add an API to get kernfs_node from inode number.
      Acked-by: default avatarTejun Heo <tj@kernel.org>
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Signed-off-by: default avatarShaohua Li <shli@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      7d35079f
    • Linus Torvalds's avatar
      Merge tag 'devicetree-fixes-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux · 0a07b238
      Linus Torvalds authored
      Pull DeviceTree fixes from Rob Herring:
       "Two small DT fixes:
      
         - Fix error handling in of_irq_to_resource_table() due to
           of_irq_to_resource() error return changes.
      
         - Fix dtx_diff script due to dts include path changes"
      
      * tag 'devicetree-fixes-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
        of: irq: fix of_irq_to_resource() error check
        scripts/dtc: dtx_diff - update include dts paths to match build
      0a07b238
  6. 28 Jul, 2017 18 commits
    • Linus Torvalds's avatar
      Merge tag 'nfs-for-4.13-3' of git://git.linux-nfs.org/projects/anna/linux-nfs · 286ba844
      Linus Torvalds authored
      Pull NFS client fixes from Anna Schumaker:
       "More NFS client bugfixes for 4.13.
      
        Most of these fix locking bugs that Ben and Neil noticed, but I also
        have a patch to fix one more access bug that was reported after last
        week.
      
        Stable fixes:
         - Fix a race where CB_NOTIFY_LOCK fails to wake a waiter
         - Invalidate file size when taking a lock to prevent corruption
      
        Other fixes:
         - Don't excessively generate tiny writes with fallocate
         - Use the raw NFS access mask in nfs4_opendata_access()"
      
      * tag 'nfs-for-4.13-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
        NFSv4.1: Fix a race where CB_NOTIFY_LOCK fails to wake a waiter
        NFS: Optimize fallocate by refreshing mapping when needed.
        NFS: invalidate file size when taking a lock.
        NFS: Use raw NFS access mask in nfs4_opendata_access()
      286ba844
    • Linus Torvalds's avatar
      Merge tag 'xfs-4.13-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · 19993e73
      Linus Torvalds authored
      Pull xfs fixes from Darrick Wong:
      
       - fix firstfsb variables that we left uninitialized, which could lead
         to locking problems.
      
       - check for NULL metadata buffer pointers before using them.
      
       - don't allow btree cursor manipulation if the btree block is corrupt.
         Better to just shut down.
      
       - fix infinite loop problems in quotacheck.
      
       - fix buffer overrun when validating directory blocks.
      
       - fix deadlock problem in bunmapi.
      
      * tag 'xfs-4.13-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
        xfs: fix multi-AG deadlock in xfs_bunmapi
        xfs: check that dir block entries don't off the end of the buffer
        xfs: fix quotacheck dquot id overflow infinite loop
        xfs: check _alloc_read_agf buffer pointer before using
        xfs: set firstfsb to NULLFSBLOCK before feeding it to _bmapi_write
        xfs: check _btree_check_block value
      19993e73
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 81554693
      Linus Torvalds authored
      Pull KVM fixes from Paolo Bonzini:
       "s390:
         - SRCU fix
      
        PPC:
         - host crash fixes
      
        x86:
         - bugfixes, including making nested posted interrupts really work
      
        Generic:
         - tweaks to kvm_stat and to uevents"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        KVM: LAPIC: Fix reentrancy issues with preempt notifiers
        tools/kvm_stat: add '-f help' to get the available event list
        tools/kvm_stat: use variables instead of hard paths in help output
        KVM: nVMX: Fix loss of L2's NMI blocking state
        KVM: nVMX: Fix posted intr delivery when vcpu is in guest mode
        x86: irq: Define a global vector for nested posted interrupts
        KVM: x86: do mask out upper bits of PAE CR3
        KVM: make pid available for uevents without debugfs
        KVM: s390: take srcu lock when getting/setting storage keys
        KVM: VMX: remove unused field
        KVM: PPC: Book3S HV: Fix host crash on changing HPT size
        KVM: PPC: Book3S HV: Enable TM before accessing TM registers
      81554693
    • Linus Torvalds's avatar
      Merge tag 'for-linus-4.13b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip · 8562e89e
      Linus Torvalds authored
      Pull xen fixes from Juergen Gross:
       "Three minor cleanups for xen related drivers"
      
      * tag 'for-linus-4.13b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
        xen: dont fiddle with event channel masking in suspend/resume
        xen: selfballoon: remove unnecessary static in frontswap_selfshrink()
        xen: Drop un-informative message during boot
      8562e89e
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 3d9d7405
      Linus Torvalds authored
      Pull arm64 fixes from Will Deacon:
       "I'd been collecting these whilst we debugged a CPU hotplug failure,
        but we ended up diagnosing that one to tglx, who has taken a fix via
        the -tip tree separately.
      
        We're seeing some NFS issues that we haven't gotten to the bottom of
        yet, and we've uncovered some issues with our backtracing too so there
        might be another fixes pull before we're done.
      
        Summary:
      
         - Ensure we have a guard page after the kernel image in vmalloc
      
         - Fix incorrect prefetch stride in copy_page
      
         - Ensure irqs are disabled in die()
      
         - Fix for event group validation in QCOM L2 PMU driver
      
         - Fix requesting of PMU IRQs on AMD Seattle
      
         - Minor cleanups and fixes"
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: mmu: Place guard page after mapping of kernel image
        drivers/perf: arm_pmu: Request PMU SPIs with IRQF_PER_CPU
        arm64: sysreg: Fix unprotected macro argmuent in write_sysreg
        perf: qcom_l2: fix column exclusion check
        arm64/lib: copy_page: use consistent prefetch stride
        arm64/numa: Drop duplicate message
        perf: Convert to using %pOF instead of full_name
        arm64: Convert to using %pOF instead of full_name
        arm64: traps: disable irq in die()
        arm64: atomics: Remove '&' from '+&' asm constraint in lse atomics
        arm64: uaccess: Remove redundant __force from addr cast in __range_ok
      3d9d7405
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 080012ba
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       "The highlight is Ben's patch to work around a host killing bug when
        running KVM guests with the Radix MMU on Power9. See the long change
        log of that commit for more detail.
      
        And then three fairly minor fixes:
      
         - fix of_node_put() underflow during reconfig remove, using old DLPAR
           tools.
      
         - fix recently introduced ld version check with 64-bit LE-only
           toolchain.
      
         - free the subpage_prot_table correctly, avoiding a memory leak.
      
        Thanks to: Aneesh Kumar K.V, Benjamin Herrenschmidt, Laurent Vivier"
      
      * tag 'powerpc-4.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/mm/hash: Free the subpage_prot_table correctly
        powerpc/Makefile: Fix ld version check with 64-bit LE-only toolchain
        powerpc/pseries: Fix of_node_put() underflow during reconfig remove
        powerpc/mm/radix: Workaround prefetch issue with KVM
      080012ba
    • Benjamin Coddington's avatar
      NFSv4.1: Fix a race where CB_NOTIFY_LOCK fails to wake a waiter · b7dbcc0e
      Benjamin Coddington authored
      nfs4_retry_setlk() sets the task's state to TASK_INTERRUPTIBLE within the
      same region protected by the wait_queue's lock after checking for a
      notification from CB_NOTIFY_LOCK callback.  However, after releasing that
      lock, a wakeup for that task may race in before the call to
      freezable_schedule_timeout_interruptible() and set TASK_WAKING, then
      freezable_schedule_timeout_interruptible() will set the state back to
      TASK_INTERRUPTIBLE before the task will sleep.  The result is that the task
      will sleep for the entire duration of the timeout.
      
      Since we've already set TASK_INTERRUPTIBLE in the locked section, just use
      freezable_schedule_timout() instead.
      
      Fixes: a1d617d8 ("nfs: allow blocking locks to be awoken by lock callbacks")
      Signed-off-by: default avatarBenjamin Coddington <bcodding@redhat.com>
      Reviewed-by: default avatarJeff Layton <jlayton@redhat.com>
      Cc: stable@vger.kernel.org # v4.9+
      Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
      b7dbcc0e
    • Linus Torvalds's avatar
      Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · e26f1bea
      Linus Torvalds authored
      Pull crypto fixes from Herbert Xu:
      
       - remove broken dt bindings in inside-secure
      
       - fix authencesn crash when used with digest_null
      
       - fix cavium/nitrox firmware path
      
       - fix SHA3 failure in brcm
      
       - fix Kconfig dependency for brcm
      
      * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
        crypto: authencesn - Fix digest_null crash
        crypto: brcm - remove BCM_PDC_MBOX dependency in Kconfig
        Documentation/bindings: crypto: remove the dma-mask property
        crypto: inside-secure - do not parse the dma mask from dt
        crypto: cavium/nitrox - Change in firmware path.
        crypto: brcm - Fix SHA3-512 algorithm failure
      e26f1bea
    • Linus Torvalds's avatar
      Merge branch 'for-4.13-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · 0a2a1330
      Linus Torvalds authored
      Pull btrfs fixes from David Sterba:
       "Fixes addressing problems reported by users, and there's one more
        regression fix"
      
      * 'for-4.13-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: round down size diff when shrinking/growing device
        Btrfs: fix early ENOSPC due to delalloc
        btrfs: fix lockup in find_free_extent with read-only block groups
        Btrfs: fix dir item validation when replaying xattr deletes
      0a2a1330
    • Linus Torvalds's avatar
      Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md · 9583f1c9
      Linus Torvalds authored
      Pull MD fixes from Shaohua Li:
       "This fixes several bugs, three of them are marked for stable:
      
         - an initialization issue fixed by Ming
      
         - a bio clone race issue fixed by me
      
         - an async tx flush issue fixed by Ofer
      
         - other cleanups"
      
      * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
        MD: fix warnning for UP case
        md/raid5: add thread_group worker async_tx_issue_pending_all
        md: simplify code with bio_io_error
        md/raid1: fix writebehind bio clone
        md: raid1-10: move raid1/raid10 common code into raid1-10.c
        md: raid1/raid10: initialize bvec table via bio_add_page()
        md: remove 'idx' from 'struct resync_pages'
      9583f1c9
    • Linus Torvalds's avatar
      Merge tag 'for-4.13/dm-fixes' of... · 1731a474
      Linus Torvalds authored
      Merge tag 'for-4.13/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
      
      Pull device mapper fixes from Mike Snitzer:
      
       - a few DM integrity fixes that improve performance. One that address
         inefficiencies in the on-disk journal device layout. Another that
         makes use of the block layer's on-stack plugging when writing the
         journal.
      
       - a dm-bufio fix for the blk_status_t conversion that went in during
         the merge window.
      
       - a few DM raid fixes that address correctness when suspending the
         device and a validation fix for validation that occurs during device
         activation.
      
       - a couple DM zoned target fixes. Important one being the fix to not
         use GFP_KERNEL in the IO path due to concerns about deadlock in
         low-memory conditions (e.g. swap over a DM zoned device, etc).
      
       - a DM DAX device fix to make sure dm_dax_flush() is called if the
         underlying DAX device is operating as a write cache.
      
      * tag 'for-4.13/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
        dm, dax: Make sure dm_dax_flush() is called if device supports it
        dm verity fec: fix GFP flags used with mempool_alloc()
        dm zoned: use GFP_NOIO in I/O path
        dm zoned: remove test for impossible REQ_OP_FLUSH conditions
        dm raid: bump target version
        dm raid: avoid mddev->suspended access
        dm raid: fix activation check in validate_raid_redundancy()
        dm raid: remove WARN_ON() in raid10_md_layout_to_format()
        dm bufio: fix error code in dm_bufio_write_dirty_buffers()
        dm integrity: test for corrupted disk format during table load
        dm integrity: WARN_ON if variables representing journal usage get out of sync
        dm integrity: use plugging when writing the journal
        dm integrity: fix inefficient allocation of journal space
      1731a474
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 0fa8dc42
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "A small collection of fixes that should go into this series. This
        contains:
      
         - NVMe pull request from Christoph, with various fixes for nvme
           proper and nvme-fc.
      
         - disable runtime PM for blk-mq for now.
      
           With scsi now defaulting to using blk-mq, this reared its head as
           an issue. Longer term we'll fix up runtime PM for blk-mq, for now
           just disable it to prevent a hang on laptop resume for some folks.
      
         - blk-mq CPU <-> hw queue map fix from Christoph.
      
         - xen/blkfront pull request from Konrad, with two small fixes for the
           blkfront driver.
      
         - a few fixups for nbd from Joseph.
      
         - a stable fix for pblk from Javier"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        lightnvm: pblk: advance bio according to lba index
        nvme: validate admin queue before unquiesce
        nbd: clear disconnected on reconnect
        nvme-pci: fix HMB size calculation
        nvme-fc: revise TRADDR parsing
        nvme-fc: address target disconnect race conditions in fcp io submit
        nvme: fabrics commands should use the fctype field for data direction
        nvme: also provide a UUID in the WWID sysfs attribute
        xen/blkfront: always allocate grants first from per-queue persistent grants
        xen-blkfront: fix mq start/stop race
        blk-mq: map queues to all present CPUs
        block: disable runtime-pm for blk-mq
        xen-blkfront: Fix handling of non-supported operations
        nbd: only set sndtimeo if we have a timeout set
        nbd: take tx_lock before disconnecting
        nbd: allow multiple disconnects to be sent
      0fa8dc42
    • Linus Torvalds's avatar
      Merge tag 'mmc-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc · a2d48756
      Linus Torvalds authored
      Pull MMC fixes from Ulf Hansson:
       "Here are a couple of mmc fixes intended for v4.13-rc1.
      
        I have also included a couple of cleanup patches in this pull request
        for OMAP2+, related to the omap_hsmmc driver. The reason is because of
        the changes are also depending on OMAP SoC specific code, so this
        simplifies how to deal with this.
      
        Summary:
      
        MMC host:
         - sunxi: Correct time phase settings
         - omap_hsmmc: Clean up some dead code
         - dw_mmc: Fix message printed for deprecated num-slots DT binding
         - dw_mmc: Fix DT documentation"
      
      * tag 'mmc-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
        Documentation: dw-mshc: deprecate num-slots
        mmc: dw_mmc: fix the wrong condition check of getting num-slots from DT
        mmc: host: omap_hsmmc: remove unused platform callbacks
        ARM: OMAP2+: hsmmc.c: Remove dead code
        mmc: sunxi: Keep default timing phase settings for new timing mode
      a2d48756
    • Javier González's avatar
      lightnvm: pblk: advance bio according to lba index · 75cb8e93
      Javier González authored
      When a lba either hits the cache or corresponds to an empty entry in the
      L2P table, we need to advance the bio according to the position in which
      the lba is located. Otherwise, we will copy data in the wrong page, thus
      causing data corruption for the application.
      
      In case of a cache hit, we assumed that bio->bi_iter.bi_idx would
      contain the correct index, but this is no necessarily true. Instead, use
      the local bio advance counter and iterator. This guarantees that lbas
      hitting the cache are copied into the right bv_page.
      
      In case of an empty L2P entry, we omitted to advance the bio. In the
      cases when the same I/O also contains a cache hit, data corresponding
      to this lba will be copied to the wrong bv_page. Fix this by advancing
      the bio as we do in the case of a cache hit.
      
      Fixes: a4bd217b lightnvm: physical block device (pblk) target
      Signed-off-by: default avatarJavier González <javier@javigon.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      75cb8e93
    • Will Deacon's avatar
      arm64: mmu: Place guard page after mapping of kernel image · 92bbd16e
      Will Deacon authored
      The vast majority of virtual allocations in the vmalloc region are followed
      by a guard page, which can help to avoid overruning on vma into another,
      which may map a read-sensitive device.
      
      This patch adds a guard page to the end of the kernel image mapping (i.e.
      following the data/bss segments).
      
      Cc: Mark Rutland <mark.rutland@arm.com>
      Reviewed-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      92bbd16e
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-for-v4.13-rc3' of git://people.freedesktop.org/~airlied/linux · 0b5477d9
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "These iare the fixes for 4.13-rc3: vmwgfx, exynos, i915, amdgpu,
        nouveau, host1x and displayport fixes.
      
        As expected people woke up this week, i915 didn't do an -rc2 pull so
        got a bumper -rc3 pull, and Ben resurfaced on nouveau and fixed a
        bunch of major crashers seen on Fedora 26, and there are a few vmwgfx
        fixes as well.
      
        Otherwise exynos had some regression fixes/cleanups, and amdgpu has an
        rcu locking regression fix and a couple of minor fixes"
      
      * tag 'drm-fixes-for-v4.13-rc3' of git://people.freedesktop.org/~airlied/linux: (44 commits)
        drm/i915: Fix bad comparison in skl_compute_plane_wm.
        drm/i915: Force CPU synchronisation even if userspace requests ASYNC
        drm/i915: Only skip updating execobject.offset after error
        drm/i915: Only mark the execobject as pinned on success
        drm/i915: Remove assertion from raw __i915_vma_unpin()
        drm/i915/cnl: Fix loadgen select programming on ddi vswing sequence
        drm/i915: Fix scaler init during CRTC HW state readout
        drm/i915/selftests: Fix an error handling path in 'mock_gem_device()'
        drm/i915: Unbreak gpu reset vs. modeset locking
        gpu: host1x: Free the IOMMU domain when there is no device to attach
        drm/i915: Fix cursor updates on some platforms
        drm/i915: Fix user ptr check size in eb_relocate_vma()
        drm: exynos: mark pm functions as __maybe_unused
        drm/exynos: select CEC_CORE if CEC_NOTIFIER
        drm/exynos/hdmi: fix disable sequence
        drm/exynos: mic: add a bridge at probe
        drm/exynos/dsi: Remove error handling for bridge_node DT parsing
        drm/exynos: dsi: do not try to find bridge
        drm: exynos: hdmi: make of_device_ids const.
        drm: exynos: constify mixer_match_types and *_mxr_drv_data.
        ...
      0b5477d9
    • Dave Airlie's avatar
      Merge tag 'exynos-drm-fixes-for-v4.13-rc3' of... · 20806588
      Dave Airlie authored
      Merge tag 'exynos-drm-fixes-for-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
      
      Summary:
      - fix probing fail issue of dsi driver without bridge device.
      - fix disable sequence of hdmi driver.
      - trivial cleanups.
      
      * tag 'exynos-drm-fixes-for-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
        drm: exynos: mark pm functions as __maybe_unused
        drm/exynos: select CEC_CORE if CEC_NOTIFIER
        drm/exynos/hdmi: fix disable sequence
        drm/exynos: mic: add a bridge at probe
        drm/exynos/dsi: Remove error handling for bridge_node DT parsing
        drm/exynos: dsi: do not try to find bridge
        drm: exynos: hdmi: make of_device_ids const.
        drm: exynos: constify mixer_match_types and *_mxr_drv_data.
        exynos_drm: Clean up duplicated assignment in exynos_drm_driver
      20806588
    • Dave Airlie's avatar
      Merge tag 'drm-intel-fixes-2017-07-27' of... · d5bcd111
      Dave Airlie authored
      Merge tag 'drm-intel-fixes-2017-07-27' of git://anongit.freedesktop.org/git/drm-intel into drm-fixes
      
      i915 fixes for -rc3
      
      Bit more than usual since we missed -rc2. 4x cc: stable, 2 gvt
      patches, but all fairly minor stuff. Last minute rebase was to add a
      few missing cc: stable, I did prep the pull this morning already and
      made sure CI approves.
      
      * tag 'drm-intel-fixes-2017-07-27' of git://anongit.freedesktop.org/git/drm-intel:
        drm/i915: Fix bad comparison in skl_compute_plane_wm.
        drm/i915: Force CPU synchronisation even if userspace requests ASYNC
        drm/i915: Only skip updating execobject.offset after error
        drm/i915: Only mark the execobject as pinned on success
        drm/i915: Remove assertion from raw __i915_vma_unpin()
        drm/i915/cnl: Fix loadgen select programming on ddi vswing sequence
        drm/i915: Fix scaler init during CRTC HW state readout
        drm/i915/selftests: Fix an error handling path in 'mock_gem_device()'
        drm/i915: Unbreak gpu reset vs. modeset locking
        drm/i915: Fix cursor updates on some platforms
        drm/i915: Fix user ptr check size in eb_relocate_vma()
        drm/i915/gvt: Extend KBL platform support in GVT-g
        drm/i915/gvt: Fix the vblank timer close issue after shutdown VMs in reverse
      d5bcd111