commit 7a800a20ae6329e803c5c646b20811a6ae9ca136
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Feb 2 18:19:29 2021 +0100

    block: use bi_max_vecs to find the bvec pool
    
    Instead of encoding of the bvec pool using magic bio flags, just use
    a helper to find the pool based on the max_vecs value.
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Jens Axboe <axboe@kernel.dk>

commit 72b043654ba8b8ce2e0cf3da49247b2db3acb2c1
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Feb 2 18:19:28 2021 +0100

    md/raid10: remove dead code in reshape_request
    
    A bio allocated by bio_alloc_bioset comes pre-zeroed, no need to
    clear random fields.
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Acked-by: Song Liu <song@kernel.org>
    Signed-off-by: Jens Axboe <axboe@kernel.dk>

commit 977be01273844626ddeef4a464b42b99418d76e6
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Feb 2 18:19:27 2021 +0100

    block: mark the bio as cloned in bio_iov_bvec_set
    
    bio_iov_bvec_set clones the bio_vecs from the iter, and thus should be
    treated like a cloned bio in every respect.  That also includes not
    touching bi_max_vecs as that is a property of the bio allocation and not
    its current payload.
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Jens Axboe <axboe@kernel.dk>

commit ed97ce5e1daf26d456760443fc89dc14d2b677e5
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Feb 2 18:19:26 2021 +0100

    block: set BIO_NO_PAGE_REF in bio_iov_bvec_set
    
    bio_iov_bvec_set assigns the foreign bvec, so setting the NO_PAGE_REF
    directly there seems like the best fit.
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Jens Axboe <axboe@kernel.dk>

commit 86004515ed80c01d59ab54b5d048164750af3c4b
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Feb 2 18:19:25 2021 +0100

    block: remove a layer of indentation in bio_iov_iter_get_pages
    
    Remove a pointless layer of indentation after a return statement.
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Jens Axboe <axboe@kernel.dk>

commit 0f2e6ab851ae146c468bc5151c302c6e2473f70a
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Feb 2 18:19:24 2021 +0100

    block: turn the nr_iovecs argument to bio_alloc* into an unsigned short
    
    The bi_max_vecs and bi_vcnt fields are defined as unsigned short, so
    don't allow passing larger values in.
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Jens Axboe <axboe@kernel.dk>

commit de76fd893074ab2cea132c28ac9efd9d0434215e
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Feb 2 18:19:23 2021 +0100

    block: remove the 1 and 4 vec bvec_slabs entries
    
    All bios with up to 4 bvecs use the inline bvecs in the bio itself, so
    don't bother to define bvec_slabs entries for them.  Also decruftify
    the bvec_slabs definition and initialization while we're at it.
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Jens Axboe <axboe@kernel.dk>

commit f007a3d66c5480c8dae3fa20a89a06861ef1f5db
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Feb 2 18:19:22 2021 +0100

    block: streamline bvec_alloc
    
    Avoid the pointless goto by trying the slab allocation first and falling
    through to the mempool.
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Jens Axboe <axboe@kernel.dk>