sendfile: remove COMPAT_FREEBSD4 from kern_sendfile
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Authored by brooks on Aug 26 2026, 12:34 PM.

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markj

Summary

Move compat bits into a wrapper around the copyin of the header's
iovec.

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rG FreeBSD src repository

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Buildable 76188
Build 73071: arc lint + arc unit

Event Timeline

brooks created this revision.Aug 26 2026, 12:34 PM

Herald added subscribers: olce, glebius, imp. · View Herald TranscriptAug 26 2026, 12:34 PM

brooks requested review of this revision.Aug 26 2026, 12:34 PM

Harbormaster completed remote builds in B76188: Diff 185151.Aug 26 2026, 12:34 PM

brooks mentioned this in D59034: sendfile(2): rework compat implementation.Aug 26 2026, 12:39 PM

This is a bit more complex than I was hoping. I do wonder if we really need all of these separate callbacks, vs. one callback for the initial copyin plus the header and trailer copyins. That would require a bit more code in the callbacks but seems simpler overall.

Anyway, it's a minor point. I'm okay with the original change as it is.