linux-kernel - Re: [PATCH 06/23] perf: Add perf_output_skip function to skip bytes in sample

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20120627153229.GK20638@somewhere.redhat.com>
Date:	Wed, 27 Jun 2012 17:32:42 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	acme@...hat.com, a.p.zijlstra@...llo.nl, mingo@...e.hu,
	paulus@...ba.org, cjashfor@...ux.vnet.ibm.com, eranian@...gle.com,
	gorcunov@...nvz.org, tzanussi@...il.com, mhiramat@...hat.com,
	robert.richter@....com, fche@...hat.com,
	linux-kernel@...r.kernel.org, masami.hiramatsu.pt@...achi.com,
	drepper@...il.com, asharma@...com, benjamin.redelings@...cent.org
Subject: Re: [PATCH 06/23] perf: Add perf_output_skip function to skip bytes
 in sample

On Tue, Jun 19, 2012 at 05:47:57PM +0200, Jiri Olsa wrote:
> Introducing perf_output_skip function to be able to skip
> data within the perf ring buffer.
> 
> When writing data into perf ring buffer we first reserve needed
> place in ring buffer and then copy the actual data.
> 
> There's a possibility we won't be able to fill all the reserved
> size with data, so we need a way to skip the remaining bytes.
> 
> This is going to be usefull when storing the user stack dump,
> where we might end up with less data than we originally requested.
> 
> Signed-off-by: Jiri Olsa <jolsa@...hat.com>

Acked-by: Frederic Weisbecker <fweisbec@...il.com>
--
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/