From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 13 Jul 2020 18:59:33 +0000 (-0400)
Subject: Fix: Lock metadata cache on session destroy
X-Git-Tag: v2.12.2~1
X-Git-Url: http://git.lttng.org/?a=commitdiff_plain;h=5a4afa8ac8dbe6090a73583b0f5e38760705f884;hp=5a4afa8ac8dbe6090a73583b0f5e38760705f884;p=lttng-modules.git

Fix: Lock metadata cache on session destroy

commit 92143b2c5656 ("Fix: metadata stream leak, missing list removal and locking")
missed taking a lock protecting the metadata stream list iteration on
session destroy. This opens a race window between iteration and item
removal/free which triggers kernel OOPS.

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