From patchwork Tue Jan 6 17:20:30 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Corentin Chary X-Patchwork-Id: 16824 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 28247DDF5B for ; Wed, 7 Jan 2009 04:30:24 +1100 (EST) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.68 #1 (Red Hat Linux)) id 1LKFhx-0004rn-L4; Tue, 06 Jan 2009 17:27:13 +0000 Received: from mail-bw0-f12.google.com ([209.85.218.12]) by bombadil.infradead.org with esmtp (Exim 4.68 #1 (Red Hat Linux)) id 1LKFhw-0004ek-Ak for linux-mtd@lists.infradead.org; Tue, 06 Jan 2009 17:27:12 +0000 Received: by bwz5 with SMTP id 5so17615176bwz.18 for ; Tue, 06 Jan 2009 09:27:10 -0800 (PST) Received: by 10.223.104.140 with SMTP id p12mr15654260fao.7.1231262677281; Tue, 06 Jan 2009 09:24:37 -0800 (PST) Received: from iit-chary_c.localnet (cxr69-11-88-180-139-205.fbx.proxad.net [88.180.139.205]) by mx.google.com with ESMTPS id 35sm28152056fkt.16.2009.01.06.09.24.36 (version=SSLv3 cipher=RC4-MD5); Tue, 06 Jan 2009 09:24:36 -0800 (PST) From: Corentin Chary To: dedekind@infradead.org Subject: Re: [PATCH 1/3] UBI: map operation via ioctl Date: Tue, 6 Jan 2009 18:20:30 +0100 User-Agent: KMail/1.10.92 (Linux/2.6.28-gentoo; KDE/4.1.87; x86_64; ; ) References: <71cd59b00901050605s4ec76e9avb146bb61deaf2159@mail.gmail.com> <1231256293.6608.55.camel@localhost.localdomain> In-Reply-To: <1231256293.6608.55.camel@localhost.localdomain> MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200901061820.30465.corentincj@iksaif.net> X-Spam-Score: 0.0 (/) Cc: linux-mtd@lists.infradead.org X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-mtd-bounces@lists.infradead.org Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org >From bafefa6ed036173c65b7f51c6a4a4ce5004ad09f Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Mon, 5 Jan 2009 14:44:11 +0100 Subject: [PATCH 1/3] UBI: map operation via ioctl UBI: map operation via ioctl Signed-off-by: Corentin Chary --- drivers/mtd/ubi/cdev.c | 13 +++++++++++++ include/mtd/ubi-user.h | 16 ++++++++++++++++ 2 files changed, 29 insertions(+), 0 deletions(-) diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index 98cf31e..db47121 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -518,6 +518,19 @@ static int vol_cdev_ioctl(struct inode *inode, struct file *file, err = ubi_wl_flush(ubi); break; } + case UBI_IOMAP: + { + struct ubi_map_req req; + err = copy_from_user(&req, argp, + sizeof(struct ubi_map_req)); + if (err) { + err = -EFAULT; + break; + } + err = ubi_leb_map(desc, req.lnum, req.dtype); + break; + } + #endif default: diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h index ccdc562..8222f12 100644 --- a/include/mtd/ubi-user.h +++ b/include/mtd/ubi-user.h @@ -133,6 +133,9 @@ #define UBI_IOCEBER _IOW(UBI_VOL_IOC_MAGIC, 1, int32_t) /* An atomic eraseblock change command */ #define UBI_IOCEBCH _IOW(UBI_VOL_IOC_MAGIC, 2, int32_t) +/* Map an eraseblock */ +#define UBI_IOMAP _IOW(UBI_VOL_IOC_MAGIC, 3, struct ubi_map_req) + /* Maximum MTD device name length supported by UBI */ #define MAX_UBI_MTD_NAME_LEN 127 @@ -319,4 +322,17 @@ struct ubi_leb_change_req { int8_t padding[7]; } __attribute__ ((packed)); +/** + * struct ubi_map_req - a data structure used in map + * eraseblock requests. + * @lnum: logical eraseblock number to change + * @dtype: data type (%UBI_LONGTERM, %UBI_SHORTTERM, %UBI_UNKNOWN) + * @padding: reserved for future, not used, has to be zeroed + */ +struct ubi_map_req { + int32_t lnum; + int8_t dtype; + int8_t padding[3]; +} __attribute__ ((packed)); + #endif /* __UBI_USER_H__ */