From: Michael Jeanson <mjeanson@efficios.com>
Date: Wed, 27 Jul 2022 20:19:35 +0000 (-0400)
Subject: fix: Unify possible CPU number fallback
X-Git-Url: http://git.liburcu.org/?a=commitdiff_plain;h=217babc9b6b5dcc531fb6b8bc5fc6e2906a060be;hp=217babc9b6b5dcc531fb6b8bc5fc6e2906a060be;p=lttng-ust.git

fix: Unify possible CPU number fallback

The MUSL specific fallback to get the number of possible CPUs in the
system has the same issue with hot-unplugged CPUs as the Glibc
implementation we worked around by using the possible CPU mask from
sysfs.

To address this, unify our fallback code across all C libraries to get
the maximum CPU id from the directories in "/sys/devices/system/cpu".

Change-Id: I5541742dc1de8e011a942880825fa88c656f0905
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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