blk-mq-debugfs: Show busy requests

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Requests that got stuck in a block driver are neither on
blk_mq_ctx.rq_list nor on any hw dispatch queue. Make these
visible in debugfs through the "busy" attribute.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Eduardo Valentin <eduval@amazon.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Omar Sandoval <osandov@fb.com>
Cc: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

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Bart Van Assche 2017-06-01 08:55:12 -07:00 • committed by Jens Axboe

parent 8ef1a19103

commit 2720bab502

1 changed files with 31 additions and 0 deletions

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block/blk-mq-debugfs.c

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