From mboxrd@z Thu Jan 1 00:00:00 1970 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 1LJq8Z-0005bB-V1 for linux-mtd@lists.infradead.org; Mon, 05 Jan 2009 14:09:00 +0000 Received: by mail-bw0-f12.google.com with SMTP id 5so16342293bwz.18 for ; Mon, 05 Jan 2009 06:08:59 -0800 (PST) Message-ID: <71cd59b00901050607l4356c850y2be8ea93d8437fbd@mail.gmail.com> Date: Mon, 5 Jan 2009 15:07:19 +0100 From: "Corentin Chary" Sender: corentin.chary@gmail.com To: linux-mtd@lists.infradead.org Subject: [PATCH 3/3] UBI: is_mapped operation via ioctl MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Corentin Chary UBI: is_mapped operation via ioctl Signed-off-by: Corentin Chary --- drivers/mtd/ubi/cdev.c | 12 ++++++++++++ include/mtd/ubi-user.h | 2 ++ 2 files changed, 14 insertions(+), 0 deletions(-) diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index 7a9080c..1bf21eb 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -542,6 +542,18 @@ static int vol_cdev_ioctl(struct inode *inode, struct file *file, err = ubi_leb_unmap(desc, lnum); break; } + case UBI_IOISMAP: + { + int32_t lnum; + + err = get_user(lnum, (__user int32_t *)argp); + if (err) { + err = -EFAULT; + break; + } + err = ubi_is_mapped(desc, lnum); + break; + } #endif diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h index bcff3a0..a65c4ab 100644 --- a/include/mtd/ubi-user.h +++ b/include/mtd/ubi-user.h @@ -137,6 +137,8 @@ #define UBI_IOMAP _IOW(UBI_VOL_IOC_MAGIC, 3, struct ubi_map_req) /* Unmap an eraseblock */ #define UBI_IOUNMAP _IOW(UBI_VOL_IOC_MAGIC, 4, int32_t) +/* check whether an eraseblock is mapped */ +#define UBI_IOISMAP _IOW(UBI_VOL_IOC_MAGIC, 5, int32_t) /* Maximum MTD device name length supported by UBI */ #define MAX_UBI_MTD_NAME_LEN 127 -- 1.6.0.6