1BLK_QUEUE_END_TAG(9) Block Devices BLK_QUEUE_END_TAG(9)
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6 blk_queue_end_tag - end tag operations for a request
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9 void blk_queue_end_tag(struct request_queue * q, struct request * rq);
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12 q
13 the request queue for the device
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15 rq
16 the request that has completed
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19 Typically called when end_that_request_first returns 0, meaning all
20 transfers have been done for a request. It´s important to call this
21 function before end_that_request_last, as that will put the request
22 back on the free list thus corrupting the internal tag list.
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25 queue lock must be held.
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28Kernel Hackers Manual 2.6. June 2019 BLK_QUEUE_END_TAG(9)