From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 3 Feb 2020 20:52:02 +0000 (-0500)
Subject: Fix: event-notifier: do not flush packet if it only contains subbuf header
X-Git-Tag: v2.13.0-rc1~138
X-Git-Url: http://git.lttng.org./?a=commitdiff_plain;h=18f12d55db4f9c78bde2738931a45557050858eb;hp=18f12d55db4f9c78bde2738931a45557050858eb;p=lttng-modules.git

Fix: event-notifier: do not flush packet if it only contains subbuf header

This poll behavior returns POLLIN in situations where there is
actually no event to read, which causes read to block when it
should not.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I59e56cd4da9907b6f9ccdc14c6037f0f72e4505e
---