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rack: honor prior socket buffer lock when doing the upcall
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Authored by rscheff on May 21 2021, 9:30 PM.

Details

Summary

While partially reverting D24237 with D29690, due to introducing some
unintended effects for in-kernel TCP consumers, the preexisting lock
on the socket send buffer was not considered properly.

Test Plan

Found by: markj
MFC: 2 weeks
Sponsored by: NetApp, Inc.

Diff Detail

Repository
R10 FreeBSD src repository
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.