From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1EBB9171D2
	for <linux-kernel@vger.kernel.org>; Mon,  6 Jan 2025 21:18:28 +0000 (UTC)
Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201
ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;
	t=1736198310; cv=none; b=gNTEzXigLzKx4Jp0VJoyxNE0Mx+imnyAyIunPzwaLsblqTpdSjVjvMtv/vC6Fjf0PxFLFkIWBXKaH8b8JhuNoT1+lcEt26yHO6eFmrSjF4ErQQ3nKPlBh2M2xZEsPu9/rZF6GdbWoDsh0DrrjB0cKWG2Fdy/or1Urw6QMQQjh2U=
ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org;
	s=arc-20240116; t=1736198310; c=relaxed/simple;
	bh=R8cjwFD4KkgYdBXkteN978ebXomInOYBCFtzyQpNdiU=;
	h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:
	 Content-Type:Content-Disposition:In-Reply-To; b=p32iwCRrqKkD+teAR9BB4skzNHO1eb3oJadMbOnPQ3ibhYBron5USzubBgF+C8B/CrW1d6CnuLo+w7Pbgp5TfQQYbuWfzBEqdiivhfeyPY3S9iHCyWhf/a1DC5wjfFKD1JwhETaD2xX6jIWUHsG6mApa3gXyL42eVjz34GVamrw=
ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gmTr9apR; arc=none smtp.client-ip=10.30.226.201
Authentication-Results: smtp.subspace.kernel.org;
	dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gmTr9apR"
Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3B983C4CED2;
	Mon,  6 Jan 2025 21:18:28 +0000 (UTC)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;
	s=k20201202; t=1736198308;
	bh=R8cjwFD4KkgYdBXkteN978ebXomInOYBCFtzyQpNdiU=;
	h=Date:From:To:Cc:Subject:References:In-Reply-To:From;
	b=gmTr9apRd/Xr1QBsyBE4q/yWG0J2R62jCvv08VLmeu2nTLPL8NxI612nl1Jc/xGxj
	 CHAxCy9PoNraVP3dVeOB8+pAXI0gnGstNX9tM+Yr3Ie+IMt16ng1+422FNyaO4o5U8
	 MhyUfucKcxa6PXANtygz6AvAwyoyPe54/cghMlg8Msu0K0nSh+fh1v/60pu4FADHzD
	 qgn+yzXRgIzi6Ry0mQxixx1mPbD1BNt74JlFQBvZTJYJSCAzlsU0ediB7ArZn+dksJ
	 BueXA3DDMgr9jGUFugu01/v2lIN5FzCoRdfoYAjmfU1Hf3HkR2ckceppeIa46HXe2Y
	 8sLBfm820iqDA==
Date: Mon, 6 Jan 2025 21:18:26 +0000
From: Jaegeuk Kim <jaegeuk@kernel.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: Daniel Lee <chullee@google.com>, Chao Yu <chao@kernel.org>,
	linux-f2fs-devel@lists.sourceforge.net,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] f2fs: Introduce linear search for dentries
Message-ID: <Z3xIojPamtc5-dUd@google.com>
References: <20241220172136.1028811-1-chullee@google.com>
 <Z2ketmZiWmUVddpt@infradead.org>
 <Z2mWf-pghAlHYJ8o@google.com>
 <Z3eswqllW9LX2XMh@infradead.org>
Precedence: bulk
X-Mailing-List: linux-kernel@vger.kernel.org
List-Id: <linux-kernel.vger.kernel.org>
List-Subscribe: <mailto:linux-kernel+subscribe@vger.kernel.org>
List-Unsubscribe: <mailto:linux-kernel+unsubscribe@vger.kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <Z3eswqllW9LX2XMh@infradead.org>

On 01/03, Christoph Hellwig wrote:
> On Mon, Dec 23, 2024 at 04:57:35PM +0000, Jaegeuk Kim wrote:
> > > That means you have really bad worst case behavior for negative lookups.
> > > I don' think this is in any way a good idea.
> > 
> > No surprise. Please check:
> > https://lore.kernel.org/lkml/Z1mzu4Eg6CPURra3@google.com/
> 
> Well, I think Linus finally gave in to revert the offending commit
> after the usual case insensitivity rants?

In any ways, we need a way to give the files back for customers, which is only
doable by the linear search, whether it sucks or not. :(