• Shaohua Li's avatar
    block: support different tag allocation policy · ee1b6f7a
    Shaohua Li authored
    The libata tag allocation is using a round-robin policy. Next patch will
    make libata use block generic tag allocation, so let's add a policy to
    tag allocation.
    
    Currently two policies: FIFO (default) and round-robin.
    
    Cc: Jens Axboe <axboe@fb.com>
    Cc: Tejun Heo <tj@kernel.org>
    Cc: Christoph Hellwig <hch@infradead.org>
    Signed-off-by: 's avatarShaohua Li <shli@fb.com>
    Signed-off-by: 's avatarJens Axboe <axboe@fb.com>
    ee1b6f7a