• Linus Torvalds's avatar
    Merge branch 'for-4.4/core' of git://git.kernel.dk/linux-block · d9734e0d
    Linus Torvalds authored
    Pull core block updates from Jens Axboe:
     "This is the core block pull request for 4.4.  I've got a few more
      topic branches this time around, some of them will layer on top of the
      core+drivers changes and will come in a separate round.  So not a huge
      chunk of changes in this round.
    
      This pull request contains:
    
       - Enable blk-mq page allocation tracking with kmemleak, from Catalin.
    
       - Unused prototype removal in blk-mq from Christoph.
    
       - Cleanup of the q->blk_trace exchange, using cmpxchg instead of two
         xchg()'s, from Davidlohr.
    
       - A plug flush fix from Jeff.
    
       - Also from Jeff, a fix that means we don't have to update shared tag
         sets at init time unless we do a state change.  This cuts down boot
         times on thousands of devices a lot with scsi/blk-mq.
    
       - blk-mq waitqueue barrier fix from Kosuke.
    
       - Various fixes from Ming:
    
            - Fixes for segment merging and splitting, and checks, for
              the old core and blk-mq.
    
            - Potential blk-mq speedup by marking ctx pending at the end
              of a plug insertion batch in blk-mq.
    
            - direct-io no page dirty on kernel direct reads.
    
       - A WRITE_SYNC fix for mpage from Roman"
    
    * 'for-4.4/core' of git://git.kernel.dk/linux-block:
      blk-mq: avoid excessive boot delays with large lun counts
      blktrace: re-write setting q->blk_trace
      blk-mq: mark ctx as pending at batch in flush plug path
      blk-mq: fix for trace_block_plug()
      block: check bio_mergeable() early before merging
      blk-mq: check bio_mergeable() early before merging
      block: avoid to merge splitted bio
      block: setup bi_phys_segments after splitting
      block: fix plug list flushing for nomerge queues
      blk-mq: remove unused blk_mq_clone_flush_request prototype
      blk-mq: fix waitqueue_active without memory barrier in block/blk-mq-tag.c
      fs: direct-io: don't dirtying pages for ITER_BVEC/ITER_KVEC direct read
      fs/mpage.c: forgotten WRITE_SYNC in case of data integrity write
      block: kmemleak: Track the page allocations for struct request
    d9734e0d
mpage.c 20.3 KB