1BLK_RQ_UNMAP_USER(9)             Block Devices            BLK_RQ_UNMAP_USER(9)
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NAME

6       blk_rq_unmap_user - unmap a request with user data
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SYNOPSIS

9       int blk_rq_unmap_user(struct bio * bio);
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ARGUMENTS

12       bio
13           start of bio list
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DESCRIPTION

16       Unmap a rq previously mapped by blk_rq_map_user. The caller must supply
17       the original rq->bio from the blk_rq_map_user return, since the I/O
18       completion may have changed rq->bio.
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21Kernel Hackers Manual 3.10         June 2019              BLK_RQ_UNMAP_USER(9)
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