1. 12 Aug, 2016 7 commits
    • Steffen Maier's avatar
      zfcp: trace on request for open and close of WKA port · d27a7cb9
      Steffen Maier authored
      Since commit a54ca0f6
      ("[SCSI] zfcp: Redesign of the debug tracing for HBA records.")
      HBA records no longer contain WWPN, D_ID, or LUN
      to reduce duplicate information which is already in REC records.
      In contrast to "regular" target ports, we don't use recovery to open
      WKA ports such as directory/nameserver, so we don't get REC records.
      Therefore, introduce pseudo REC running records without any
      actual recovery action but including D_ID of WKA port on open/close.
      Signed-off-by: default avatarSteffen Maier <maier@linux.vnet.ibm.com>
      Fixes: a54ca0f6 ("[SCSI] zfcp: Redesign of the debug tracing for HBA records.")
      Cc: <stable@vger.kernel.org> #2.6.38+
      Reviewed-by: default avatarBenjamin Block <bblock@linux.vnet.ibm.com>
      Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
      Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
      d27a7cb9
    • Steffen Maier's avatar
      zfcp: restore: Dont use 0 to indicate invalid LUN in rec trace · 0102a30a
      Steffen Maier authored
      bring back
      commit d21e9daa
      ("[SCSI] zfcp: Dont use 0 to indicate invalid LUN in rec trace")
      which was lost with
      commit ae0904f6
      ("[SCSI] zfcp: Redesign of the debug tracing for recovery actions.")
      Signed-off-by: default avatarSteffen Maier <maier@linux.vnet.ibm.com>
      Fixes: ae0904f6 ("[SCSI] zfcp: Redesign of the debug tracing for recovery actions.")
      Cc: <stable@vger.kernel.org> #2.6.38+
      Reviewed-by: default avatarBenjamin Block <bblock@linux.vnet.ibm.com>
      Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
      Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
      0102a30a
    • Steffen Maier's avatar
      zfcp: retain trace level for SCSI and HBA FSF response records · 35f040df
      Steffen Maier authored
      While retaining the actual filtering according to trace level,
      the following commits started to write such filtered records
      with a hardcoded record level of 1 instead of the actual record level:
      commit 250a1352
      ("[SCSI] zfcp: Redesign of the debug tracing for SCSI records.")
      commit a54ca0f6
      ("[SCSI] zfcp: Redesign of the debug tracing for HBA records.")
      
      Now we can distinguish written records again for offline level filtering.
      Signed-off-by: default avatarSteffen Maier <maier@linux.vnet.ibm.com>
      Fixes: 250a1352 ("[SCSI] zfcp: Redesign of the debug tracing for SCSI records.")
      Fixes: a54ca0f6 ("[SCSI] zfcp: Redesign of the debug tracing for HBA records.")
      Cc: <stable@vger.kernel.org> #2.6.38+
      Reviewed-by: default avatarBenjamin Block <bblock@linux.vnet.ibm.com>
      Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
      Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
      35f040df
    • Steffen Maier's avatar
      zfcp: close window with unblocked rport during rport gone · 4eeaa4f3
      Steffen Maier authored
      On a successful end of reopen port forced,
      zfcp_erp_strategy_followup_success() re-uses the port erp_action
      and the subsequent zfcp_erp_action_cleanup() now
      sees ZFCP_ERP_SUCCEEDED with
      erp_action->action==ZFCP_ERP_ACTION_REOPEN_PORT
      instead of ZFCP_ERP_ACTION_REOPEN_PORT_FORCED
      but must not perform zfcp_scsi_schedule_rport_register().
      
      We can detect this because the fresh port reopen erp_action
      is in its very first step ZFCP_ERP_STEP_UNINITIALIZED.
      
      Otherwise this opens a time window with unblocked rport
      (until the followup port reopen recovery would block it again).
      If a scsi_cmnd timeout occurs during this time window
      fc_timed_out() cannot work as desired and such command
      would indeed time out and trigger scsi_eh. This prevents
      a clean and timely path failover.
      This should not happen if the path issue can be recovered
      on FC transport layer such as path issues involving RSCNs.
      
      Also, unnecessary and repeated DID_IMM_RETRY for pending and
      undesired new requests occur because internally zfcp still
      has its zfcp_port blocked.
      
      As follow-on errors with scsi_eh, it can cause,
      in the worst case, permanently lost paths due to one of:
      sd <scsidev>: [<scsidisk>] Medium access timeout failure. Offlining disk!
      sd <scsidev>: Device offlined - not ready after error recovery
      
      For fix validation and to aid future debugging with other recoveries
      we now also trace (un)blocking of rports.
      Signed-off-by: default avatarSteffen Maier <maier@linux.vnet.ibm.com>
      Fixes: 5767620c ("[SCSI] zfcp: Do not unblock rport from REOPEN_PORT_FORCED")
      Fixes: a2fa0aed ("[SCSI] zfcp: Block FC transport rports early on errors")
      Fixes: 5f852be9 ("[SCSI] zfcp: Fix deadlock between zfcp ERP and SCSI")
      Fixes: 338151e0 ("[SCSI] zfcp: make use of fc_remote_port_delete when target port is unavailable")
      Fixes: 3859f6a2 ("[PATCH] zfcp: add rports to enable scsi_add_device to work again")
      Cc: <stable@vger.kernel.org> #2.6.32+
      Reviewed-by: default avatarBenjamin Block <bblock@linux.vnet.ibm.com>
      Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
      Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
      4eeaa4f3
    • Steffen Maier's avatar
      zfcp: fix ELS/GS request&response length for hardware data router · 70369f8e
      Steffen Maier authored
      In the hardware data router case, introduced with kernel 3.2
      commit 86a9668a ("[SCSI] zfcp: support for hardware data router")
      the ELS/GS request&response length needs to be initialized
      as in the chained SBAL case.
      
      Otherwise, the FCP channel rejects ELS requests with
      FSF_REQUEST_SIZE_TOO_LARGE.
      
      Such ELS requests can be issued by user space through BSG / HBA API,
      or zfcp itself uses ADISC ELS for remote port link test on RSCN.
      The latter can cause a short path outage due to
      unnecessary remote target port recovery because the always
      failing ADISC cannot detect extremely short path interruptions
      beyond the local FCP channel.
      
      Below example is decoded with zfcpdbf from s390-tools:
      
      Timestamp      : ...
      Area           : SAN
      Subarea        : 00
      Level          : 1
      Exception      : -
      CPU id         : ..
      Caller         : zfcp_dbf_san_req+0408
      Record id      : 1
      Tag            : fssels1
      Request id     : 0x<reqid>
      Destination ID : 0x00<target d_id>
      Payload info   : 52000000 00000000 <our wwpn       >           [ADISC]
                       <our wwnn       > 00<s_id> 00000000
                       00000000 00000000 00000000 00000000
      
      Timestamp      : ...
      Area           : HBA
      Subarea        : 00
      Level          : 1
      Exception      : -
      CPU id         : ..
      Caller         : zfcp_dbf_hba_fsf_res+0740
      Record id      : 1
      Tag            : fs_ferr
      Request id     : 0x<reqid>
      Request status : 0x00000010
      FSF cmnd       : 0x0000000b               [FSF_QTCB_SEND_ELS]
      FSF sequence no: 0x...
      FSF issued     : ...
      FSF stat       : 0x00000061		  [FSF_REQUEST_SIZE_TOO_LARGE]
      FSF stat qual  : 00000000 00000000 00000000 00000000
      Prot stat      : 0x00000100
      Prot stat qual : 00000000 00000000 00000000 00000000
      Signed-off-by: default avatarSteffen Maier <maier@linux.vnet.ibm.com>
      Fixes: 86a9668a ("[SCSI] zfcp: support for hardware data router")
      Cc: <stable@vger.kernel.org> # 3.2+
      Reviewed-by: default avatarBenjamin Block <bblock@linux.vnet.ibm.com>
      Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
      Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
      70369f8e
    • Steffen Maier's avatar
      zfcp: fix fc_host port_type with NPIV · bd77befa
      Steffen Maier authored
      For an NPIV-enabled FCP device, zfcp can erroneously show
      "NPort (fabric via point-to-point)" instead of "NPIV VPORT"
      for the port_type sysfs attribute of the corresponding
      fc_host.
      s390-tools that can be affected are dbginfo.sh and ziomon.
      
      zfcp_fsf_exchange_config_evaluate() ignores
      fsf_qtcb_bottom_config.connection_features indicating NPIV
      and only sets fc_host_port_type to FC_PORTTYPE_NPORT if
      fsf_qtcb_bottom_config.fc_topology is FSF_TOPO_FABRIC.
      
      Only the independent zfcp_fsf_exchange_port_evaluate()
      evaluates connection_features to overwrite fc_host_port_type
      to FC_PORTTYPE_NPIV in case of NPIV.
      Code was introduced with upstream kernel 2.6.30
      commit 0282985d
      ("[SCSI] zfcp: Report fc_host_port_type as NPIV").
      
      This works during FCP device recovery (such as set online)
      because it performs FSF_QTCB_EXCHANGE_CONFIG_DATA followed by
      FSF_QTCB_EXCHANGE_PORT_DATA in sequence.
      
      However, the zfcp-specific scsi host sysfs attributes
      "requests", "megabytes", or "seconds_active" trigger only
      zfcp_fsf_exchange_config_evaluate() resetting fc_host
      port_type to FC_PORTTYPE_NPORT despite NPIV.
      
      The zfcp-specific scsi host sysfs attribute "utilization"
      triggers only zfcp_fsf_exchange_port_evaluate() correcting
      the fc_host port_type again in case of NPIV.
      
      Evaluate fsf_qtcb_bottom_config.connection_features
      in zfcp_fsf_exchange_config_evaluate() where it belongs to.
      Signed-off-by: default avatarSteffen Maier <maier@linux.vnet.ibm.com>
      Fixes: 0282985d ("[SCSI] zfcp: Report fc_host_port_type as NPIV")
      Cc: <stable@vger.kernel.org> #2.6.30+
      Reviewed-by: default avatarBenjamin Block <bblock@linux.vnet.ibm.com>
      Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
      Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
      bd77befa
    • Kevin Barnett's avatar
      smartpqi: initial commit of Microsemi smartpqi driver · 6c223761
      Kevin Barnett authored
      This initial commit contains Microsemi's smartpqi module.
      
      [mkp: Minor tweaks to apply to 4.9/scsi-queue]
      Reviewed-by: default avatarScott Benesh <scott.benesh@microsemi.com>
      Reviewed-by: default avatarKevin Barnett <kevin.barnett@microsemi.com>
      Signed-off-by: default avatarKevin Barnett <kevin.barnett@microsemi.com>
      Signed-off-by: default avatarDon Brace <don.brace@microsemi.com>
      Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
      Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
      Reviewed-by: default avatarEwan D. Milne <emilne@redhat.com>
      Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
      6c223761
  2. 09 Aug, 2016 6 commits
  3. 08 Aug, 2016 1 commit
  4. 07 Aug, 2016 10 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 857953d7
      Linus Torvalds authored
      Pull more block fixes from Jens Axboe:
       "As mentioned in the pull the other day, a few more fixes for this
        round, all related to the bio op changes in this series.
      
        Two fixes, and then a cleanup, renaming bio->bi_rw to bio->bi_opf.  I
        wanted to do that change right after or right before -rc1, so that
        risk of conflict was reduced.  I just rebased the series on top of
        current master, and no new ->bi_rw usage has snuck in"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        block: rename bio bi_rw to bi_opf
        target: iblock_execute_sync_cache() should use bio_set_op_attrs()
        mm: make __swap_writepage() use bio_set_op_attrs()
        block/mm: make bdev_ops->rw_page() take a bool for read/write
      857953d7
    • Linus Torvalds's avatar
      Merge tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linux · 635a4ba1
      Linus Torvalds authored
      Pull drm zpos property support from Dave Airlie:
       "This tree was waiting on some media stuff I hadn't had time to get a
        stable branchpoint off, so I just waited until it was all in your tree
        first.
      
        It's been around a bit on the list and shouldn't affect anything
        outside adding the generic API and moving some ARM drivers to using
        it"
      
      * tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linux:
        drm: rcar: use generic code for managing zpos plane property
        drm/exynos: use generic code for managing zpos plane property
        drm: sti: use generic zpos for plane
        drm: add generic zpos property
      635a4ba1
    • Jens Axboe's avatar
      block: rename bio bi_rw to bi_opf · 1eff9d32
      Jens Axboe authored
      Since commit 63a4cc24, bio->bi_rw contains flags in the lower
      portion and the op code in the higher portions. This means that
      old code that relies on manually setting bi_rw is most likely
      going to be broken. Instead of letting that brokeness linger,
      rename the member, to force old and out-of-tree code to break
      at compile time instead of at runtime.
      
      No intended functional changes in this commit.
      Signed-off-by: default avatarJens Axboe <axboe@fb.com>
      1eff9d32
    • Jens Axboe's avatar
      target: iblock_execute_sync_cache() should use bio_set_op_attrs() · 31c64f78
      Jens Axboe authored
      The original commit missed this function, it needs to mark it a
      write flush.
      
      Cc: Mike Christie <mchristi@redhat.com>
      Fixes: e742fc32 ("target: use bio op accessors")
      Signed-off-by: default avatarJens Axboe <axboe@fb.com>
      31c64f78
    • Jens Axboe's avatar
      mm: make __swap_writepage() use bio_set_op_attrs() · ba13e83e
      Jens Axboe authored
      Cleaner than manipulating bio->bi_rw flags directly.
      Signed-off-by: default avatarJens Axboe <axboe@fb.com>
      ba13e83e
    • Jens Axboe's avatar
      block/mm: make bdev_ops->rw_page() take a bool for read/write · c11f0c0b
      Jens Axboe authored
      Commit abf54548 changed it from an 'rw' flags type to the
      newer ops based interface, but now we're effectively leaking
      some bdev internals to the rest of the kernel. Since we only
      care about whether it's a read or a write at that level, just
      pass in a bool 'is_write' parameter instead.
      
      Then we can also move op_is_write() and friends back under
      CONFIG_BLOCK protection.
      Reviewed-by: default avatarMike Christie <mchristi@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@fb.com>
      c11f0c0b
    • Linus Torvalds's avatar
      Merge tag 'doc-4.8-fixes' of git://git.lwn.net/linux · 52ddb7e9
      Linus Torvalds authored
      Pull documentation fixes from Jonathan Corbet:
       "Three fixes for the docs build, including removing an annoying warning
        on 'make help' if sphinx isn't present"
      
      * tag 'doc-4.8-fixes' of git://git.lwn.net/linux:
        DocBook: use DOCBOOKS="" to ignore DocBooks instead of IGNORE_DOCBOOKS=1
        Documenation: update cgroup's document path
        Documentation/sphinx: do not warn about missing tools in 'make help'
      52ddb7e9
    • Linus Torvalds's avatar
      Merge tag 'binfmt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/binfmt_misc · e9d488c3
      Linus Torvalds authored
      Pull binfmt_misc update from James Bottomley:
       "This update is to allow architecture emulation containers to function
        such that the emulation binary can be housed outside the container
        itself.  The container and fs parts both have acks from relevant
        experts.
      
        To use the new feature you have to add an F option to your binfmt_misc
        configuration"
      
      From the docs:
       "The usual behaviour of binfmt_misc is to spawn the binary lazily when
        the misc format file is invoked.  However, this doesn't work very well
        in the face of mount namespaces and changeroots, so the F mode opens
        the binary as soon as the emulation is installed and uses the opened
        image to spawn the emulator, meaning it is always available once
        installed, regardless of how the environment changes"
      
      * tag 'binfmt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/binfmt_misc:
        binfmt_misc: add F option description to documentation
        binfmt_misc: add persistent opened binary handler for containers
        fs: add filp_clone_open API
      e9d488c3
    • Eryu Guan's avatar
      fs: return EPERM on immutable inode · 337684a1
      Eryu Guan authored
      In most cases, EPERM is returned on immutable inode, and there're only a
      few places returning EACCES. I noticed this when running LTP on
      overlayfs, setxattr03 failed due to unexpected EACCES on immutable
      inode.
      
      So converting all EACCES to EPERM on immutable inode.
      Acked-by: default avatarDave Chinner <dchinner@redhat.com>
      Signed-off-by: default avatarEryu Guan <guaneryu@gmail.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      337684a1
    • Linus Torvalds's avatar
      Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · fe64f328
      Linus Torvalds authored
      Pull more vfs updates from Al Viro:
       "Assorted cleanups and fixes.
      
        In the "trivial API change" department - ->d_compare() losing 'parent'
        argument"
      
      * 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        cachefiles: Fix race between inactivating and culling a cache object
        9p: use clone_fid()
        9p: fix braino introduced in "9p: new helper - v9fs_parent_fid()"
        vfs: make dentry_needs_remove_privs() internal
        vfs: remove file_needs_remove_privs()
        vfs: fix deadlock in file_remove_privs() on overlayfs
        get rid of 'parent' argument of ->d_compare()
        cifs, msdos, vfat, hfs+: don't bother with parent in ->d_compare()
        affs ->d_compare(): don't bother with ->d_inode
        fold _d_rehash() and __d_rehash() together
        fold dentry_rcuwalk_invalidate() into its only remaining caller
      fe64f328
  5. 06 Aug, 2016 16 commits
    • Linus Torvalds's avatar
      Merge tag 'xfs-rmap-for-linus-4.8-rc1' of... · 0cbbc422
      Linus Torvalds authored
      Merge tag 'xfs-rmap-for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
      
      Pull more xfs updates from Dave Chinner:
       "This is the second part of the XFS updates for this merge cycle, and
        contains the new reverse block mapping feature for XFS.
      
        Reverse mapping allows us to track the owner of a specific block on
        disk precisely.  It is implemented as a set of btrees (one per
        allocation group) that track the owners of allocated extents.
        Effectively it is a "used space tree" that is updated when we allocate
        or free extents.  i.e. it is coherent with the free space btrees we
        already maintain and never overlaps with them.
      
        This reverse mapping infrastructure is the building block of several
        upcoming features - reflink, copy-on-write data, dedupe, online
        metadata and data scrubbing, highly accurate bad sector/data loss
        reporting to users, and significantly improved reconstruction of
        damaged and corrupted filesystems.  There's a lot of new stuff coming
        along in the next couple of cycles,a nd it all builds in the rmap
        infrastructure.
      
        As such, it's a huge chunk of new code with new on-disk format
        features and internal infrastructure.  It warns at mount time as an
        experimental feature and that it may eat data (as we do with all new
        on-disk features until they stabilise).  We have not released
        userspace suport for it yet - userspace support currently requires
        download from Darrick's xfsprogs repo and build from source, so the
        access to this feature is really developer/tester only at this point.
        Initial userspace support will be released at the same time kernel
        with this code in it is released.
      
        The new rmap enabled code regresses 3 xfstests - all are ENOSPC
        related corner cases, one of which Darrick posted a fix for a few
        hours ago.  The other two are fixed by infrastructure that is part of
        the upcoming reflink patchset.  This new ENOSPC infrastructure
        requires a on-disk format tweak required to keep mount times in
        check - we need to keep an on-disk count of allocated rmapbt blocks so
        we don't have to scan the entire btrees at mount time to count them.
      
        This is currently being tested and will be part of the fixes sent in
        the next week or two so users will not be exposed to this change"
      
      * tag 'xfs-rmap-for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (52 commits)
        xfs: move (and rename) the deferred bmap-free tracepoints
        xfs: collapse single use static functions
        xfs: remove unnecessary parentheses from log redo item recovery functions
        xfs: remove the extents array from the rmap update done log item
        xfs: in btree_lshift, only allocate temporary cursor when needed
        xfs: remove unnecesary lshift/rshift key initialization
        xfs: remove the get*keys and update_keys btree ops pointers
        xfs: enable the rmap btree functionality
        xfs: don't update rmapbt when fixing agfl
        xfs: disable XFS_IOC_SWAPEXT when rmap btree is enabled
        xfs: add rmap btree block detection to log recovery
        xfs: add rmap btree geometry feature flag
        xfs: propagate bmap updates to rmapbt
        xfs: enable the xfs_defer mechanism to process rmaps to update
        xfs: log rmap intent items
        xfs: create rmap update intent log items
        xfs: add rmap btree insert and delete helpers
        xfs: convert unwritten status of reverse mappings
        xfs: remove an extent from the rmap btree
        xfs: add an extent to the rmap btree
        ...
      0cbbc422
    • Linus Torvalds's avatar
      Merge branch 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 835c92d4
      Linus Torvalds authored
      Pull qstr constification updates from Al Viro:
       "Fairly self-contained bunch - surprising lot of places passes struct
        qstr * as an argument when const struct qstr * would suffice; it
        complicates analysis for no good reason.
      
        I'd prefer to feed that separately from the assorted fixes (those are
        in #for-linus and with somewhat trickier topology)"
      
      * 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        qstr: constify instances in adfs
        qstr: constify instances in lustre
        qstr: constify instances in f2fs
        qstr: constify instances in ext2
        qstr: constify instances in vfat
        qstr: constify instances in procfs
        qstr: constify instances in fuse
        qstr constify instances in fs/dcache.c
        qstr: constify instances in nfs
        qstr: constify instances in ocfs2
        qstr: constify instances in autofs4
        qstr: constify instances in hfs
        qstr: constify instances in hfsplus
        qstr: constify instances in logfs
        qstr: constify dentry_init_security
      835c92d4
    • Linus Torvalds's avatar
      Merge tag 'media/v4.8-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media · ce804bf5
      Linus Torvalds authored
      Pull mailcap fixlets from Mauro Carvalho Chehab:
       "A small fixup for my and Shuah's entries in .mailcap.
      
        Basically, those entries were with a syntax that makes
        get_maintainer.pl to do the wrong thing"
      
      * tag 'media/v4.8-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
        .mailmap: Correct entries for Mauro Carvalho Chehab and Shuah Khan
      ce804bf5
    • Linus Torvalds's avatar
      Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost · 0803e040
      Linus Torvalds authored
      Pull virtio/vhost updates from Michael Tsirkin:
      
       - new vsock device support in host and guest
      
       - platform IOMMU support in host and guest, including compatibility
         quirks for legacy systems.
      
       - misc fixes and cleanups.
      
      * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
        VSOCK: Use kvfree()
        vhost: split out vringh Kconfig
        vhost: detect 32 bit integer wrap around
        vhost: new device IOTLB API
        vhost: drop vringh dependency
        vhost: convert pre sorted vhost memory array to interval tree
        vhost: introduce vhost memory accessors
        VSOCK: Add Makefile and Kconfig
        VSOCK: Introduce vhost_vsock.ko
        VSOCK: Introduce virtio_transport.ko
        VSOCK: Introduce virtio_vsock_common.ko
        VSOCK: defer sock removal to transports
        VSOCK: transport-specific vsock_transport functions
        vhost: drop vringh dependency
        vop: pull in vhost Kconfig
        virtio: new feature to detect IOMMU device quirk
        balloon: check the number of available pages in leak balloon
        vhost: lockless enqueuing
        vhost: simplify work flushing
      0803e040
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 80fac0f5
      Linus Torvalds authored
      Pull more KVM updates from Paolo Bonzini:
       - ARM bugfix and MSI injection support
       - x86 nested virt tweak and OOPS fix
       - Simplify pvclock code (vdso bits acked by Andy Lutomirski).
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        nvmx: mark ept single context invalidation as supported
        nvmx: remove comment about missing nested vpid support
        KVM: lapic: fix access preemption timer stuff even if kernel_irqchip=off
        KVM: documentation: fix KVM_CAP_X2APIC_API information
        x86: vdso: use __pvclock_read_cycles
        pvclock: introduce seqcount-like API
        arm64: KVM: Set cpsr before spsr on fault injection
        KVM: arm: vgic-irqfd: Workaround changing kvm_set_routing_entry prototype
        KVM: arm/arm64: Enable MSI routing
        KVM: arm/arm64: Enable irqchip routing
        KVM: Move kvm_setup_default/empty_irq_routing declaration in arch specific header
        KVM: irqchip: Convey devid to kvm_set_msi
        KVM: Add devid in kvm_kernel_irq_routing_entry
        KVM: api: Pass the devid in the msi routing entry
      80fac0f5
    • Linus Torvalds's avatar
      Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · 4305f424
      Linus Torvalds authored
      Pull MIPS updates from Ralf Baechle:
       "This is the main pull request for MIPS for 4.8.  Also includes is a
        minor SSB cleanup as SSB code traditionally is merged through the MIPS
        tree:
      
        ATH25:
          - MIPS: Add default configuration for ath25
      
        Boot:
          - For zboot, copy appended dtb to the end of the kernel
          - store the appended dtb address in a variable
      
        BPF:
          - Fix off by one error in offset allocation
      
        Cobalt code:
          - Fix typos
      
        Core code:
          - debugfs_create_file returns NULL on error, so don't use IS_ERR for
            testing for errors.
          - Fix double locking issue in RM7000 S-cache code.  This would only
            affect RM7000 ARC systems on reboot.
          - Fix page table corruption on THP permission changes.
          - Use compat_sys_keyctl for 32 bit userspace on 64 bit kernels.
            David says, there are no compatibility issues raised by this fix.
          - Move some signal code around.
          - Rewrite r4k count/compare clockevent device registration such that
            min_delta_ticks/max_delta_ticks files are guaranteed to be
            initialized.
          - Only register r4k count/compare as clockevent device if we can
            assume the clock to be constant.
          - Fix MSA asm warnings in control reg accessors
          - uasm and tlbex fixes and tweaking.
          - Print segment physical address when EU=1.
          - Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO.
          - CP: Allow booting by VP other than VP 0
          - Cache handling fixes and optimizations for r4k class caches
          - Add hotplug support for R6 processors
          - Cleanup hotplug bits in kconfig
          - traps: return correct si code for accessing nonmapped addresses
          - Remove cpu_has_safe_index_cacheops
      
        Lantiq:
          - Register IRQ handler for virtual IRQ number
          - Fix EIU interrupt loading code
          - Use the real EXIN count
          - Fix build error.
      
        Loongson 3:
          - Increase HPET_MIN_PROG_DELTA and decrease HPET_MIN_CYCLES
      
        Octeon:
          - Delete built-in DTB pruning code for D-Link DSR-1000N.
          - Clean up GPIO definitions in dlink_dsr-1000n.dts.
          - Add more LEDs to the DSR-100n DTS
          - Fix off by one in octeon_irq_gpio_map()
          - Typo fixes
          - Enable SATA by default in cavium_octeon_defconfig
          - Support readq/writeq()
          - Remove forced mappings of USB interrupts.
          - Ensure DMA descriptors are always in the low 4GB
          - Improve USB reset code for OCTEON II.
      
        Pistachio:
          - Add maintainers entry for pistachio SoC Support
          - Remove plat_setup_iocoherency
      
        Ralink:
          - Fix pwm UART in spis group pinmux.
      
        SSB:
          - Change bare unsigned to unsigned int to suit coding style
      
        Tools:
          - Fix reloc tool compiler warnings.
      
        Other:
          - Delete use of ARCH_WANT_OPTIONAL_GPIOLIB"
      
      * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (61 commits)
        MIPS: mm: Fix definition of R6 cache instruction
        MIPS: tools: Fix relocs tool compiler warnings
        MIPS: Cobalt: Fix typo
        MIPS: Octeon: Fix typo
        MIPS: Lantiq: Fix build failure
        MIPS: Use CPHYSADDR to implement mips32 __pa
        MIPS: Octeon: Dlink_dsr-1000n.dts: add more leds.
        MIPS: Octeon: Clean up GPIO definitions in dlink_dsr-1000n.dts.
        MIPS: Octeon: Delete built-in DTB pruning code for D-Link DSR-1000N.
        MIPS: store the appended dtb address in a variable
        MIPS: ZBOOT: copy appended dtb to the end of the kernel
        MIPS: ralink: fix spis group pinmux
        MIPS: Factor o32 specific code into signal_o32.c
        MIPS: non-exec stack & heap when non-exec PT_GNU_STACK is present
        MIPS: Use per-mm page to execute branch delay slot instructions
        MIPS: Modify error handling
        MIPS: c-r4k: Use SMP calls for CM indexed cache ops
        MIPS: c-r4k: Avoid small flush_icache_range SMP calls
        MIPS: c-r4k: Local flush_icache_range cache op override
        MIPS: c-r4k: Split r4k_flush_kernel_vmap_range()
        ...
      4305f424
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · db826278
      Linus Torvalds authored
      Pull perf updates from Ingo Molnar:
       "Mostly tooling fixes and some late tooling updates, plus two perf
        related printk message fixes"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf tests bpf: Use SyS_epoll_wait alias
        perf tests: objdump output can contain multi byte chunks
        perf record: Add --sample-cpu option
        perf hists: Introduce output_resort_cb method
        perf tools: Move config/Makefile into Makefile.config
        perf tests: Add test for bitmap_scnprintf function
        tools lib: Add bitmap_and function
        tools lib: Add bitmap_scnprintf function
        tools lib: Add bitmap_alloc function
        tools lib traceevent: Ignore generated library files
        perf tools: Fix build failure on perl script context
        perf/core: Change log level for duration warning to KERN_INFO
        perf annotate: Plug filename string leak
        perf annotate: Introduce strerror for handling symbol__disassemble() errors
        perf annotate: Rename symbol__annotate() to symbol__disassemble()
        perf/x86: Modify error message in virtualized environment
        perf target: str_error_r() always returns the buffer it receives
        perf annotate: Use pipe + fork instead of popen
        perf evsel: Introduce constructor for cycles event
      db826278
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c98f5827
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar:
       "Two fixes and a cleanup-fix, to the syscall entry code and to ptrace"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/syscalls/64: Add compat_sys_keyctl for 32-bit userspace
        x86/ptrace: Stop setting TS_COMPAT in ptrace code
        x86/vdso: Error out if the vDSO isn't a valid DSO
      c98f5827
    • Linus Torvalds's avatar
      Merge tag 'sh-for-4.8' of git://git.libc.org/linux-sh · 1630e843
      Linus Torvalds authored
      Pull arch/sh updates from Rich Felker:
       "These changes improve device tree support (including builtin DTB), add
        support for the J-Core J2 processor, an open source synthesizable
        reimplementation of the SH-2 ISA, resolve a longstanding sigcontext
        ABI mismatch issue, and fix various bugs including nommu-specific
        issues and minor regressions introduced in 4.6.
      
        The J-Core arch support is included here but to be usable it needs
        drivers that are waiting on approval/inclusion from their subsystem
        maintainers"
      
      * tag 'sh-for-4.8' of git://git.libc.org/linux-sh: (23 commits)
        sh: add device tree source for J2 FPGA on Mimas v2 board
        sh: add defconfig for J-Core J2
        sh: use common clock framework with device tree boards
        sh: system call wire up
        sh: Delete unnecessary checks before the function call "mempool_destroy"
        sh: do not perform IPI-based cache flush except on boards that need it
        sh: add SMP support for J2
        sh: SMP support for SH2 entry.S
        sh: add working futex atomic ops on userspace addresses for smp
        sh: add J2 atomics using the cas.l instruction
        sh: add AT_HWCAP flag for J-Core cas.l instruction
        sh: add support for J-Core J2 processor
        sh: fix build regression with CONFIG_OF && !CONFIG_OF_FLATTREE
        sh: allow clocksource drivers to register sched_clock backends
        sh: make heartbeat driver explicitly non-modular
        sh: make board-secureedge5410 explicitly non-modular
        sh: make mm/asids-debugfs explicitly non-modular
        sh: make time.c explicitly non-modular
        sh: fix futex/robust_list on nommu models
        sh: disable aliased page logic on NOMMU models
        ...
      1630e843
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 194d6ad3
      Linus Torvalds authored
      Pull arm64 fixes from Will Deacon:
      
       - fix HugeTLB leak due to CoW and PTE_RDONLY mismatch
      
       - avoid accessing unmapped FDT fields when checking validity
      
       - correctly account for vDSO AUX entry in ARCH_DLINFO
      
       - fix kallsyms with absolute expressions in linker script
      
       - kill unnecessary symbol-based relocs in vmlinux
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: Fix copy-on-write referencing in HugeTLB
        arm64: mm: avoid fdt_check_header() before the FDT is fully mapped
        arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
        arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux
        arm64: vmlinux.lds: make __rela_offset and __dynsym_offset ABSOLUTE
      194d6ad3
    • Linus Torvalds's avatar
      Merge tag 'pwm/for-4.8-rc1' of... · a157b3aa
      Linus Torvalds authored
      Merge tag 'pwm/for-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
      
      Pull pwm updates from Thierry Reding:
       "This set of changes improve some aspects of the atomic API as well as
        make use of this new API in the regulator framework to allow properly
        dealing with critical regulators controlled by a PWM.
      
        Aside from that there's a bunch of updates and cleanups for existing
        drivers, as well as the addition of new drivers for the Broadcom
        iProc, STMPE and ChromeOS EC controllers"
      
      * tag 'pwm/for-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (44 commits)
        regulator: pwm: Document pwm-dutycycle-unit and pwm-dutycycle-range
        regulator: pwm: Support extra continuous mode cases
        pwm: Add ChromeOS EC PWM driver
        dt-bindings: pwm: Add binding for ChromeOS EC PWM
        mfd: cros_ec: Add EC_PWM function definitions
        mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper
        pwm: atmel: Use of_device_get_match_data()
        pwm: atmel: Fix checkpatch warnings
        pwm: atmel: Fix disabling of PWM channels
        dt-bindings: pwm: Add R-Car H3 device tree bindings
        pwm: rcar: Use ARCH_RENESAS
        pwm: tegra: Add support for Tegra186
        dt-bindings: pwm: tegra: Add compatible string for Tegra186
        pwm: tegra: Avoid overflow when calculating duty cycle
        pwm: tegra: Allow 100 % duty cycle
        pwm: tegra: Add support for reset control
        pwm: tegra: Rename mmio_base to regs
        pwm: tegra: Remove useless padding
        pwm: tegra: Drop NUM_PWM macro
        pwm: lpc32xx: Set PWM_PIN_LEVEL bit to default value
        ...
      a157b3aa
    • Linus Torvalds's avatar
      Merge tag 'ntb-4.8' of git://github.com/jonmason/ntb · 32199ec3
      Linus Torvalds authored
      Pull NTB updates from Jon Mason:
       "NTB bug fixes for the ntb_tool and ntb_perf, and improvements to the
        ntb_perf and ntb_pingpong for increased debugability.
      
        Also, modification to the ntb_transport layer to increase/decrease
        the number of transport entries depending on the ring size"
      
      * tag 'ntb-4.8' of git://github.com/jonmason/ntb:
        NTB: ntb_hw_intel: use local variable pdev
        NTB: ntb_hw_intel: show BAR size in debugfs info
        ntb_test: Add a selftest script for the NTB subsystem
        ntb_perf: clear link_is_up flag when the link goes down.
        ntb_pingpong: Add a debugfs file to get the ping count
        ntb_tool: Add link status and files to debugfs
        ntb_tool: Postpone memory window initialization for the user
        ntb_perf: Wait for link before running test
        ntb_perf: Return results by reading the run file
        ntb_perf: Improve thread handling to increase robustness
        ntb_perf: Schedule based on time not on performance
        ntb_transport: Check the number of spads the hardware supports
        ntb_tool: Add memory window debug support
        ntb_perf: Allow limiting the size of the memory windows
        NTB: allocate number transport entries depending on size of ring size
        ntb_tool: BUG: Ensure the buffer size is large enough to return all spads
        ntb_tool: Fix infinite loop bug when writing spad/peer_spad file
      32199ec3
    • Linus Torvalds's avatar
      Merge tag 'pstore-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · a02040d8
      Linus Torvalds authored
      Pull pstore fixes from Kees Cook:
       "Fixes for pstore ramoops driver to catch bad kfree() and to use better
        DT bindings"
      
      * tag 'pstore-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
        ramoops: use persistent_ram_free() instead of kfree() for freeing prz
        ramoops: use DT reserved-memory bindings
      a02040d8
    • Linus Torvalds's avatar
      Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 0603006b
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "This is seven basic fixes (plus one MAINTAINER update) which came in
        close to the merge window"
      
      * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        ipr: Fix error return code in ipr_probe_ioa()
        fcoe: add missing destroy_workqueue() on error in fcoe_init()
        lpfc: Fix possible NULL pointer dereference
        fcoe: Use default VLAN for FIP VLAN discovery
        ipr: Wait to do async scan until scsi host is initialized
        MAINTAINERS: Update cxlflash maintainers
        cxlflash: Verify problem state area is mapped before notifying shutdown
        lpfc: fix oops in lpfc_sli4_scmd_to_wqidx_distr() from lpfc_send_taskmgmt()
      0603006b
    • Linus Torvalds's avatar
      Merge tag 'dm-4.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm · d268675c
      Linus Torvalds authored
      Pull device mapper fixes from Mike Snitzer:
      
       - a stable dm-flakey fix to error read IO during the 'down_interval'
      
       - a DM core suspend fix to establish the SUSPENDED flag before dropping
         the SUSPENDING flag
      
       - a blk-mq request-based DM (dm-mq) dm_stop_queue() fix to properly
         stop the blk-mq hw_queues (and cancel pending requeue work); also
         set/clear QUEUE_FLAG_STOPPED when stopping/starting the dm-mq
         request_queue.
      
       - a DM multipath fix to harden locking of in-core state flags in the
         face of concurrent access while handling path failures under heavy
         IO.
      
       - a few small DM raid fixes to edge cases caught with further testing.
      
      * tag 'dm-4.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
        dm raid: fix use of wrong status char during resynchronization
        dm raid: constructor fails on non-zero incompat_features
        dm raid: fix processing of max_recovery_rate constructor flag
        dm: set DMF_SUSPENDED* _before_ clearing DMF_NOFLUSH_SUSPENDING
        dm rq: fix the starting and stopping of blk-mq queues
        dm mpath: add locking to multipath_resume and must_push_back
        dm flakey: error READ bios during the down_interval
      d268675c
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · fff648da
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "Here's the second round of block updates for this merge window.
      
        It's a mix of fixes for changes that went in previously in this round,
        and fixes in general.  This pull request contains:
      
         - Fixes for loop from Christoph
      
         - A bdi vs gendisk lifetime fix from Dan, worth two cookies.
      
         - A blk-mq timeout fix, when on frozen queues.  From Gabriel.
      
         - Writeback fix from Jan, ensuring that __writeback_single_inode()
           does the right thing.
      
         - Fix for bio->bi_rw usage in f2fs from me.
      
         - Error path deadlock fix in blk-mq sysfs registration from me.
      
         - Floppy O_ACCMODE fix from Jiri.
      
         - Fix to the new bio op methods from Mike.
      
           One more followup will be coming here, ensuring that we don't
           propagate the block types outside of block.  That, and a rename of
           bio->bi_rw is coming right after -rc1 is cut.
      
         - Various little fixes"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        mm/block: convert rw_page users to bio op use
        loop: make do_req_filebacked more robust
        loop: don't try to use AIO for discards
        blk-mq: fix deadlock in blk_mq_register_disk() error path
        Include: blkdev: Removed duplicate 'struct request;' declaration.
        Fixup direct bi_rw modifiers
        block: fix bdi vs gendisk lifetime mismatch
        blk-mq: Allow timeouts to run while queue is freezing
        nbd: fix race in ioctl
        block: fix use-after-free in seq file
        f2fs: drop bio->bi_rw manual assignment
        block: add missing group association in bio-cloning functions
        blkcg: kill unused field nr_undestroyed_grps
        writeback: Write dirty times for WB_SYNC_ALL writeback
        floppy: fix open(O_ACCMODE) for ioctl-only open
      fff648da