linux-kernel - Re: [PATCH 3/3] tracing/syscalls: Use long for syscall ret format and field definitions

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Date:	Tue, 6 Oct 2009 09:15:17 +0200
From:	Frédéric Weisbecker <fweisbec@...il.com>
To:	Tom Zanussi <tzanussi@...il.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, rostedt@...dmis.org,
	lizf@...fujitsu.com
Subject: Re: [PATCH 3/3] tracing/syscalls: Use long for syscall ret format and 
	field definitions

2009/10/6, Tom Zanussi <tzanussi@...il.com>:
> The syscall event definitions use long for the syscall exit ret value,
> but unsigned long for the same thing in the format and field
> definitions.  Change them all to long.


Thanks.

We may perhaps also want to change struct syscall_trace_exit
according to that?
That won't change the code behaviour, just the logic while
reviewing.

It's just a neat, this patch itself is fine.


>
> Signed-off-by: Tom Zanussi <tzanussi@...il.com>
> ---
>  kernel/trace/trace_syscalls.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
> index 9fbce6c..527e17e 100644
> --- a/kernel/trace/trace_syscalls.c
> +++ b/kernel/trace/trace_syscalls.c
> @@ -166,7 +166,7 @@ int syscall_exit_format(struct ftrace_event_call *call,
> struct trace_seq *s)
>  			       "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
>  			       "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n",
>  			       SYSCALL_FIELD(int, nr),
> -			       SYSCALL_FIELD(unsigned long, ret));
> +			       SYSCALL_FIELD(long, ret));
>  	if (!ret)
>  		return 0;
>
> @@ -212,7 +212,7 @@ int syscall_exit_define_fields(struct ftrace_event_call
> *call)
>  	if (ret)
>  		return ret;
>
> -	ret = trace_define_field(call, SYSCALL_FIELD(unsigned long, ret), 0,
> +	ret = trace_define_field(call, SYSCALL_FIELD(long, ret), 0,
>  				 FILTER_OTHER);
>
>  	return ret;
> --
> 1.6.4.GIT
>
>
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