linux-kernel - Re: [PATCH 3/3] ftrace: add ability to only trace swapper tasks

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 4 Dec 2008 10:10:23 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>, linux-kernel@...r.kernel.org,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	containers@...ts.osdl.org, Eric Biederman <ebiederm@...ssion.com>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	"Serge E. Hallyn" <serue@...ibm.com>,
	Steven Rostedt <srostedt@...hat.com>
Subject: Re: [PATCH 3/3] ftrace: add ability to only trace swapper tasks


* Andrew Morton <akpm@...ux-foundation.org> wrote:

> > Signed-off-by: Steven Rostedt <srostedt@...hat.com>
> 
> What does this patch actually do?  Is swapper currently excluded from 
> tracing for undisclosed reasons and this patch permits it to be traced? 
> If so, why was swapper thus excluded?  Or am I totally off track?

> > +static struct pid * const ftrace_swapper_pid = (struct pid *)1;
> 
> eh?

all side-effects of getting rid of the integer based PID namespace and 
replacing them with struct pid pointers.

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/