From: "Jörn Engel" <joern@logfs.org>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Jörn Engel" <joern@logfs.org>,
akpm@osdl.org, linux-ext4@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] Faster ext2_clear_inode()
Date: Mon, 9 Jul 2007 22:00:03 +0200 [thread overview]
Message-ID: <20070709200003.GA18501@lazybastard.org> (raw)
In-Reply-To: <20070709180148.GA5747@martell.zuzino.mipt.ru>
On Mon, 9 July 2007 22:01:48 +0400, Alexey Dobriyan wrote:
>
> Yes. Note that ext2_clear_inode() is referenced from ext2_sops, so even
> empty, it leaves traces in resulting kernel.
Is that your opinion or have you actually measured a difference?
I strongly suspect that compilers are smart enough to optimize away a
call to an empty static function.
Jörn
--
Fancy algorithms are slow when n is small, and n is usually small.
Fancy algorithms have big constants. Until you know that n is
frequently going to be big, don't get fancy.
-- Rob Pike
next prev parent reply other threads:[~2007-07-09 20:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-09 4:11 [PATCH] Faster ext2_clear_inode() Alexey Dobriyan
2007-07-09 8:34 ` Jörn Engel
2007-07-09 18:01 ` Alexey Dobriyan
2007-07-09 20:00 ` Jörn Engel [this message]
2007-07-09 22:02 ` Dave Kleikamp
2007-07-09 22:12 ` Jörn Engel
2007-07-20 0:31 ` Andrew Morton
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