From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pd0-x22d.google.com ([2607:f8b0:400e:c02::22d]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WenhX-0003si-To for linux-mtd@lists.infradead.org; Mon, 28 Apr 2014 15:42:40 +0000 Received: by mail-pd0-f173.google.com with SMTP id p10so5537484pdj.32 for ; Mon, 28 Apr 2014 08:42:17 -0700 (PDT) Date: Mon, 28 Apr 2014 23:42:09 +0800 From: Huang Shijie To: Kamal Dasu Subject: Re: [PATCH v2] mtd: nand: Add support to use nand_base poi databuf as bounce buffer Message-ID: <20140428154207.GB2020@localhost.localdomain> References: <1398375634-24759-1-git-send-email-kdasu.kdev@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1398375634-24759-1-git-send-email-kdasu.kdev@gmail.com> Cc: linux-mtd@lists.infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, Apr 24, 2014 at 05:40:34PM -0400, Kamal Dasu wrote: > nand_base can be passed a kmap()'d buffers from highmem by > filesystems like jffs2. This results in failure to map the In actually, the highmem buffer may also allocated by vmalloc(), such as used in the UBIFS. thanks Huang Shijie