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    blk-mq: turn WARN_ON in __blk_mq_run_hw_queue into printk · 7df938fb
    Ming Lei 提交于
    We know this WARN_ON is harmless and in reality it may be trigged,
    so convert it to printk() and dump_stack() to avoid to confusing
    people.
    
    Also add comment about two releated races here.
    
    Cc: Christian Borntraeger <borntraeger@de.ibm.com>
    Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
    Cc: Christoph Hellwig <hch@lst.de>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: "jianchao.wang" <jianchao.w.wang@oracle.com>
    Signed-off-by: NMing Lei <ming.lei@redhat.com>
    Signed-off-by: NJens Axboe <axboe@kernel.dk>
    7df938fb
blk-mq.c 76.5 KB