• Jens Axboe's avatar
    null_blk: add support for shared tags · 82f402fe
    Jens Axboe authored
    Some storage drivers need to share tag sets between devices. It's
    useful to be able to model that with null_blk, to find hangs or
    performance issues.
    
    Add a 'shared_tags' bool module parameter that. If that is set to
    true and nr_devices is bigger than 1, all devices allocated will
    share the same tag set.
    Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    82f402fe
null_blk.c 19.7 KB