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Message-ID: <1359549018.17639.90.camel@gandalf.local.home>
Date: Wed, 30 Jan 2013 07:30:18 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: chenggang <chenggang.qin@...il.com>
Cc: linux-kernel@...r.kernel.org,
Frederic Weisbecker <fweisbec@...il.com>,
Ingo Molnar <mingo@...hat.com>,
David Ahern <dsahern@...il.com>,
Peter Zijlstra <peterz@...radead.org>,
Paul Mackerras <paulus@...ba.org>,
Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
Arjan van de Ven <arjan@...ux.intel.com>,
Namhyung Kim <namhyung@...il.com>,
Yanmin Zhang <yanmin.zhang@...el.com>,
Wu Fengguang <fengguang.wu@...el.com>,
Mike Galbraith <efault@....de>,
Andrew Morton <akpm@...ux-foundation.org>,
Chenggang Qin <chenggang.qcg@...baba-inc.com>
Subject: Re: [PATCH v2] Add 4 tracepoint events for vfs
On Wed, 2013-01-30 at 14:35 +0800, chenggang wrote:
> +#include <asm/ptrace.h>
> +
> +DECLARE_EVENT_CLASS(vfs_filerw_template,
> +
> + TP_PROTO(long long pos, unsigned long bytes, unsigned char *fname),
One last nit. Might want to make fname "const".
-- Steve
> +
> + TP_ARGS(pos, bytes, fname),
> +
> + TP_STRUCT__entry(
> + __field( long long, pos )
> + __field( unsigned long, bytes )
> + __string( fname, fname )
> + ),
> +
> + TP_fast_assign(
> + __entry->pos = pos;
> + __entry->bytes = bytes;
> + __assign_str(fname, fname);
> + ),
> +
> + TP_printk("Filename: %s Pos: %lld Bytes: %lu",
> + __get_str(fname), __entry->pos, __entry->bytes)
> +);
> +
--
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