• Ming Lei's avatar
    blk-mq: export hctx->type in debugfs instead of sysfs · 346fc108
    Ming Lei authored
    Now we only export hctx->type via sysfs, and there isn't such info
    in hctx entry under debugfs. We often use debugfs only to diagnose
    queue mapping issue, so add the support in debugfs.
    
    Queue mapping becomes a bit more complicated after multiple queue
    mapping is supported, we may write blktest to verify if queue mapping
    is valid based on blk-mq-debugfs.
    
    Given not necessary to export hctx->type twice, so remove the export
    from sysfs.
    
    Cc: Jeff Moyer <jmoyer@redhat.com>
    Cc: Mike Snitzer <snitzer@redhat.com>
    Reviewed-by: 's avatarChristoph Hellwig <hch@lst.de>
    Signed-off-by: 's avatarMing Lei <ming.lei@redhat.com>
    Signed-off-by: 's avatarJens Axboe <axboe@kernel.dk>
    346fc108