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svn:author
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arybchik
K 8
svn:date
V 27
2018-12-25T07:33:02.371735Z
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V 447
MFC r341326

sfxge(4): ensure EvQ poll stops when abort is requested

If an event handler requested an abort, only the inner loop was
guarenteed to be broken out of - the outer loop could continue
if total == batch.

Fix this by poisoning batch to ensure it is different to total.

Submitted by:   Mark Spender <mspender at solarflare.com>
Sponsored by:   Solarflare Communications, Inc.
Differential Revision:  https://reviews.freebsd.org/D18287

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