From: Michael Jeanson <mjeanson@efficios.com>
Date: Fri, 2 Mar 2018 22:36:26 +0000 (-0500)
Subject: Fix: cache the result of getpid() internally
X-Git-Tag: v2.9.3~6
X-Git-Url: http://git.liburcu.org/?a=commitdiff_plain;h=057851068962ceba59f2ebb26c4a9d8c98b06cc2;hp=057851068962ceba59f2ebb26c4a9d8c98b06cc2;p=lttng-ust.git

Fix: cache the result of getpid() internally

On Linux we called getpid() directly on each tracepoint and relied on
the glibc pid cache. However, in glibc 2.25, released on 2017-02-05, the
pid cache was removed which results in a getpid syscall on each event
when the vpid context is enabled.

Remove the Linux specific case and use our internal cache all the time.

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