From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.nfschina.com (unknown [42.101.60.213]) by smtp.subspace.kernel.org (Postfix) with SMTP id 9B89D1A0731; Thu, 16 Jan 2025 10:12:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=42.101.60.213 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737022331; cv=none; b=Gg0ig4yeUgjqVvVin4pDLQWBvCmtKw3b03TuoOl9brxOIoLCGa+0t2CzTsFE7ZplePONd1zccUbb0LYzNRceOLnurv0FtkoQdgIBezEYYjJ1ym2jVtT7thfYs7X9vZKPWADkFhgy7x6v9Vb+ATUbtuWzOb5WVwtv1giscaA3Jag= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737022331; c=relaxed/simple; bh=Aj15eT8VTROmP9QRJHpzkDiaO+yvdgYkUY8vrBr3n4M=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:From:In-Reply-To: Content-Type; b=FPUcdBtxJDRYoztMiIvzr++pZeS9qELh+Zmn5psMlVd3V+s2OiSle8xGqoRZHd5fcnQLgQCYr2cjZhd8awMFqk7bhh+Jc9F5HnXgjbjxY0/qBAJXIQxLBstydyCVUkfJ5+U5qEHHG7hrCXJ2807UukW9NZmU4GxLeG1BI+XPUGE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=nfschina.com; spf=pass smtp.mailfrom=nfschina.com; arc=none smtp.client-ip=42.101.60.213 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=nfschina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nfschina.com Received: from [172.30.20.101] (unknown [180.167.10.98]) by mail.nfschina.com (MailData Gateway V2.8.8) with ESMTPSA id 2C0CA60820F2A; Thu, 16 Jan 2025 18:12:03 +0800 (CST) Message-ID: Date: Thu, 16 Jan 2025 18:12:02 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.1 Subject: Re: [PATCH] kernfs: Convert idr to xarray Content-Language: en-US To: Greg KH Cc: tj@kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org X-MD-Sfrom: suhui@nfschina.com X-MD-SrcIP: 180.167.10.98 From: Su Hui In-Reply-To: <2025011629-lilac-prozac-1023@gregkh> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2025/1/16 17:54, Greg KH wrote: > On Thu, Jan 16, 2025 at 04:48:02PM +0800, Su Hui wrote: >> IDR is deprecated. Use xarray instead. > Why? What helped by doing this? Is it faster? Slower? Less memory? > More memory? Where did the lock go? > > You need to provide so much more information here than you provided in > order for us to be able to even consider reviewing this change. Please > read the documentation for how to write a good changelog text, that is > very important, ESPECIALLY when dealing with core kernel bits. Sorry for the poor information, I will collect more information and data later. Thanks for your suggestion. Su Hui