• Linus Torvalds's avatar
    Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block · e2c5923c
    Linus Torvalds authored
    Pull core block layer updates from Jens Axboe:
     "This is the main pull request for block storage for 4.15-rc1.
      Nothing out of the ordinary in here, and no API changes or anything
      like that. Just various new features for drivers, core changes, etc.
      In particular, this pull request contains:
       - A patch series from Bart, closing the whole on blk/scsi-mq queue
       - A series from Christoph, building towards hidden gendisks (for
         multipath) and ability to move bio chains around.
       - NVMe
            - Support for native multipath for NVMe (Christoph).
            - Userspace notifications for AENs (Keith).
            - Command side-effects support (Keith).
            - SGL support (Chaitanya Kulkarni)
            - FC fixes and improvements (James Smart)
            - Lots of fixes and tweaks (Various)
       - bcache
            - New maintainer (Michael Lyle)
            - Writeback control improvements (Michael)
            - Various fixes (Coly, Elena, Eric, Liang, et al)
       - lightnvm updates, mostly centered around the pblk interface
         (Javier, Hans, and Rakesh).
       - Removal of unused bio/bvec kmap atomic interfaces (me, Christoph)
       - Writeback series that fix the much discussed hundreds of millions
         of sync-all units. This goes all the way, as discussed previously
       - Fix for missing wakeup on writeback timer adjustments (Yafang
       - Fix laptop mode on blk-mq (me).
       - {mq,name} tupple lookup for IO schedulers, allowing us to have
         alias names. This means you can use 'deadline' on both !mq and on
         mq (where it's called mq-deadline). (me).
       - blktrace race fix, oopsing on sg load (me).
       - blk-mq optimizations (me).
       - Obscure waitqueue race fix for kyber (Omar).
       - NBD fixes (Josef).
       - Disable writeback throttling by default on bfq, like we do on cfq
         (Luca Miccio).
       - Series from Ming that enable us to treat flush requests on blk-mq
         like any other request. This is a really nice cleanup.
       - Series from Ming that improves merging on blk-mq with schedulers,
         getting us closer to flipping the switch on scsi-mq again.
       - BFQ updates (Paolo).
       - blk-mq atomic flags memory ordering fixes (Peter Z).
       - Loop cgroup support (Shaohua).
       - Lots of minor fixes from lots of different folks, both for core and
         driver code"
    * 'for-4.15/block' of git://git.kernel.dk/linux-block: (294 commits)
      nvme: fix visibility of "uuid" ns attribute
      blk-mq: fixup some comment typos and lengths
      ide: ide-atapi: fix compile error with defining macro DEBUG
      blk-mq: improve tag waiting setup for non-shared tags
      brd: remove unused brd_mutex
      blk-mq: only run the hardware queue if IO is pending
      block: avoid null pointer dereference on null disk
      fs: guard_bio_eod() needs to consider partitions
      xtensa/simdisk: fix compile error
      nvme: expose subsys attribute to sysfs
      nvme: create 'slaves' and 'holders' entries for hidden controllers
      block: create 'slaves' and 'holders' entries for hidden gendisks
      nvme: also expose the namespace identification sysfs files for mpath nodes
      nvme: implement multipath access to nvme subsystems
      nvme: track shared namespaces
      nvme: introduce a nvme_ns_ids structure
      nvme: track subsystems
      block, nvme: Introduce blk_mq_req_flags_t
      block, scsi: Make SCSI quiesce and resume work reliably
      block: Add the QUEUE_FLAG_PREEMPT_ONLY request queue flag
block_dev.c 53.1 KB