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nvme: Add nvme_allocate_request_buf
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Authored by imp on Aug 22 2025, 1:15 AM.
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Details

Reviewers
jhb
mav
markj
kib
Summary

When doing ioctls, we have to map the user data using vmapbuf. Rather
than reaching inside the buf, create nvme_allocate_request_buf to use
memdesc_buf. This also understands unmapped I/O.

Sponsored by: Netflix

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rG FreeBSD src repository
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Buildable 66441
Build 63324: arc lint + arc unit