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tcp: Shouldn't drain empty sbuf

Description

tcp: Shouldn't drain empty sbuf

MFC after: 2 weeks
Reviewed By: tuexen, transport
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D29524

(cherry picked from commit 9aef4e7c2bd4371e526e4e3feb26064d361ad8ce)

Details

Provenance
rscheffAuthored on Apr 1 2021, 3:18 PM
Reviewer
transport
Differential Revision
D29524: tcp: Shouldn't drain empty sbuf
Parents
R10:e9ca38abc79b: tcp: For hostcache performance, use atomics instead of counters
Branches
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Tags
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