1BLK_QUEUE_ENTER(9)               Block Devices              BLK_QUEUE_ENTER(9)
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NAME

6       blk_queue_enter - try to increase q->q_usage_counter
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SYNOPSIS

9       int blk_queue_enter(struct request_queue * q, unsigned int flags);
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ARGUMENTS

12       q
13           request queue pointer
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15       flags
16           BLK_MQ_REQ_NOWAIT and/or BLK_MQ_REQ_PREEMPT
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19Kernel Hackers Manual 3.10         June 2019                BLK_QUEUE_ENTER(9)
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