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From: Steven Rostedt <rostedt@goodmis.org>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH 6/7] trace: constify filter_parse_regex(), match_records(), ftrace_match() and ftrace_match_record()
Date: Thu, 5 Feb 2015 16:31:54 -0500	[thread overview]
Message-ID: <20150205163154.5bfdc29c@gandalf.local.home> (raw)
In-Reply-To: <1423166200-1800-6-git-send-email-viro@ZenIV.linux.org.uk>

On Thu,  5 Feb 2015 19:56:39 +0000
Al Viro <viro@ZenIV.linux.org.uk> wrote:

> @@ -345,12 +346,11 @@ enum regex_type filter_parse_regex(char *buff, int *len, char **search, int *not
>  					type = MATCH_MIDDLE_ONLY;
>  				else
>  					type = MATCH_FRONT_ONLY;
> -				buff[i] = 0;
>  				break;
>  			}
>  		}
>  	}
> -	*len = strlen(*search);
> +	*len = buff + i - *search;

Heh, I guess I didn't need to mention this optimization. I would
recommend that this change goes into patch 5/7. No need to place it
here. It fits better with the previous patch.

-- Steve

>  
>  	return type;
>  }

  reply	other threads:[~2015-02-05 21:31 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-05 19:49 [RFC][PATCHES] constifying ftrace globs Al Viro
2015-02-05 19:56 ` [RFC][PATCH 1/7] trace: fix the glob match in __unregister_ftrace_function_probe() Al Viro
2015-02-05 20:43   ` Steven Rostedt
2015-02-05 22:30     ` Al Viro
2015-02-05 22:52       ` Steven Rostedt
2015-02-05 19:56 ` [RFC][PATCH 2/7] implement memmem() Al Viro
2015-02-05 19:56 ` [RFC][PATCH 3/7] trace_events_filter.c: switch to memcmp() and memmem() for matching Al Viro
2015-02-05 19:56 ` [RFC][PATCH 4/7] ftrace: switch matching to memcmp() and memmem() Al Viro
2015-02-05 19:56 ` [RFC][PATCH 5/7] trace: make filter_parse_regex() provide the length of substring to compare with Al Viro
2015-02-05 21:29   ` Steven Rostedt
2015-02-05 21:44     ` Al Viro
2015-02-05 22:07       ` Steven Rostedt
2015-02-05 22:46         ` Al Viro
2015-02-06  4:00           ` [RFC][PATCH v2 1/7] trace: fix the glob match in __unregister_ftrace_function_probe() Al Viro
2015-02-06  4:00           ` [RFC][PATCH v2 2/7] implement memmem() Al Viro
2015-02-06 16:19             ` Steven Rostedt
2015-02-06 22:30             ` Rasmus Villemoes
2015-02-06 22:55               ` Steven Rostedt
2015-02-06 23:14                 ` Rasmus Villemoes
2015-02-06  4:00           ` [RFC][PATCH v2 3/7] trace_events_filter.c: switch to memcmp() and memmem() for matching Al Viro
2015-02-06 16:24             ` Steven Rostedt
2015-02-06  4:00           ` [RFC][PATCH v2 4/7] ftrace: switch matching to memcmp() and memmem() Al Viro
2015-02-06  4:00           ` [RFC][PATCH v2 5/7] trace: make filter_parse_regex() provide the length of substring to compare with Al Viro
2015-02-06 18:55             ` Steven Rostedt
2015-02-06  4:00           ` [RFC][PATCH v2 6/7] trace: constify filter_parse_regex(), match_records(), ftrace_match() and ftrace_match_record() Al Viro
2015-02-06 18:56             ` Steven Rostedt
2015-02-06  4:00           ` [RFC][PATCH v2 7/7] trace: constify glob arguments all way up to ftrace_function_set_regexp() Al Viro
2015-02-05 19:56 ` [RFC][PATCH 6/7] trace: constify filter_parse_regex(), match_records(), ftrace_match() and ftrace_match_record() Al Viro
2015-02-05 21:31   ` Steven Rostedt [this message]
2015-02-05 19:56 ` [RFC][PATCH 7/7] trace: constify glob arguments all way up to ftrace_function_set_regexp() Al Viro
2020-01-24 23:45 ` [RFC][PATCHES] constifying ftrace globs Steven Rostedt

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