Re: [PATCH 3/5] tracing/events: add rcu locking around trace eventprints
From: Jeremy Fitzhardinge
Date: Fri Apr 17 2009 - 12:32:22 EST
Theodore Tso wrote:
I haven't been following all of the e-mail threads about the include
hell problem; what are the issues, exactly? What's the problem with
simply including <linux/rcuupdate.h>, and any needed prequisites in
ftrace.h?
I'm adding tracing support to paravirt.h, which in turn gets included in
various low-level arch/x86 headers. If it starts including other
high-level linux/ headers, we quickly get into deep #include recursion
problems and undefined symbols.
J
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