From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 9DAF51DE4DA for ; Fri, 3 Jan 2025 09:24:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735896259; cv=none; b=mjJoqLT9RH5AlIq2FVZaWoDcSFetXIi4TlaCz7rC2iWU+RgbjRVzn+gkvllp0hQ53Wek//xD/ELv+utvVDMpOkdfOuZ5Y0k5L8Ei1V9xRekbdPSBGGILXmASx5+z4D/jQ7hgkQZmZS6RHg6ZvaYlLsMQl08m9cPEXCXTb8K0JC4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735896259; c=relaxed/simple; bh=N4PnWoSvU6o/+xc1q+G4hGTcJipDg4edZXg8YFp3xb0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=IyrP8giOUdW6dto9CVd23uRsCfdei5PWldCy2CAi6zFswNY3GtfFC7o5+QOMC1zLgN3v/YxjJSmlxuanzo8sQse+t0N8mOXvMfMHVzZMOe670/ZVX23ouM3yRo3XPw2P0lHYNoBtACkuQK6tVzs9bzqZY+Oj9vpkmnu2pwOwjZI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=esMlGAM2; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="esMlGAM2" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=etzicS1truGgMexfFfj9wDflIXJ9ASpBbjVMPUkz/BY=; b=esMlGAM2rkyVSfeBb0R45WFdSf fqwKO3yTxFtLE6lRELu0AVfJf7lF+MISvwhBkTg5vilGqqmDgwXVoyXmmqfagZ39HlLR4KQ7cHn1Y cJd68zOEjWlRV8mFqNqTb9yacCcuOYGScMRgDbsI/KJsJLq2BdYzBzOA8/jfvMZtZKqldvG9iFM3O CJm7i/OtDsFzpcOoO5rmjWit38rawfHIkx6ILifCp4o8DGyFuublNXjGuLOl1qg2yo4sNmZYM8SdR EpEhcGvSdlGQUisNhr+csfopasc10nUV8EZ0E2RDYEI+bamZdLGOMwrDBK0ZRvszSpCW/WH50RWWQ grhG0q9w==; Received: from hch by bombadil.infradead.org with local (Exim 4.98 #2 (Red Hat Linux)) id 1tTduk-0000000CbDJ-0wg9; Fri, 03 Jan 2025 09:24:18 +0000 Date: Fri, 3 Jan 2025 01:24:18 -0800 From: Christoph Hellwig To: Jaegeuk Kim Cc: Christoph Hellwig , Daniel Lee , Chao Yu , linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] f2fs: Introduce linear search for dentries Message-ID: References: <20241220172136.1028811-1-chullee@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html 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?