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[2620:137:e000::1:20]) by mx.google.com with ESMTP id s197-20020a632cce000000b0047886bf1542si765941pgs.14.2022.12.08.21.38.57; Thu, 08 Dec 2022 21:39:10 -0800 (PST) Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=fail header.i=@mit.edu header.s=outgoing header.b=NSyyvx2x; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=mit.edu Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229470AbiLIFgb (ORCPT + 99 others); Fri, 9 Dec 2022 00:36:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55484 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229712AbiLIFgX (ORCPT ); Fri, 9 Dec 2022 00:36:23 -0500 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2300F6150B for ; Thu, 8 Dec 2022 21:36:23 -0800 (PST) Received: from cwcc.thunk.org (pool-173-48-120-46.bstnma.fios.verizon.net [173.48.120.46]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 2B95Zssm022122 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 9 Dec 2022 00:35:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing; t=1670564156; bh=eSbVoCUdJbk6Go9Rw3eCMlciNdfEcHT9KA/Tb9LDJww=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=NSyyvx2xNQFpKVZrdw4ymjx8XFiNgXzuVGJsZCRT+fl+nPazgezA56RYJL7mYcUeu 9UFWeLR9GFQ2KRxJE2ATnOeAx72O8F6JrIDrIjxvncxpwZu7SZoun8fHek+ZYXHCd7 bkLWYTayvhG6BhTXqwUQD9kcETDdAz1olGAYy0fX4pLZoMbkH6xXHmbo79Vo9iy2VZ uroLh368rAukPakO4bqTNtUAzaMROb3VcGv8XrxuNFUCQtVcgESJ3Aj+0hSDZbedGs LaMPLIv9UpNrwCaKGqLJlE3kHYsJwQ3YzwJYx3kacf4ehNK1IdKZeTrxp2qb2f5qwX bjVzEt8n35uZg== Received: by cwcc.thunk.org (Postfix, from userid 15806) id D251115C3AE9; Fri, 9 Dec 2022 00:35:54 -0500 (EST) Date: Fri, 9 Dec 2022 00:35:54 -0500 From: "Theodore Ts'o" To: Ye Bin Cc: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, jack@suse.cz, Ye Bin Subject: Re: [PATCH v3 2/4] ext4: allocate extended attribute value in vmalloc area Message-ID: References: <20221208023233.1231330-1-yebin@huaweicloud.com> <20221208023233.1231330-3-yebin@huaweicloud.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221208023233.1231330-3-yebin@huaweicloud.com> X-Spam-Status: No, score=-4.0 required=5.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Thu, Dec 08, 2022 at 10:32:31AM +0800, Ye Bin wrote: > From: Ye Bin > > Now, extended attribute value maximum length is 64K. The memory requested > here does not need continuous physical addresses, so it is appropriate to > use kvmalloc to request memory. At the same time, it can also cope with > the situation that the extended attribute will become longer in the future. > > Signed-off-by: Ye Bin > Reviewed-by: Jan Kara Applied, thanks. - Ted