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physio: Don't store user addresses in bio_data
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Authored by brooks on Oct 14 2020, 10:01 PM.
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Details

Summary

Only assign the address from the iovec to bio_data if it is a kernel
address. This is the single place where bio_data stored (however briefly)
a userspace pointer.

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rS FreeBSD src repository - subversion
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Event Timeline

brooks created this revision.

I needed this change in CheriBSD because we can't store user pointers in bio_data due to a type mismatch and we need to pass the pointer (rather than an address) to vm_fault_quick_hold_pages.

This revision is now accepted and ready to land.Oct 14 2020, 11:37 PM
This revision was automatically updated to reflect the committed changes.