kernel: add a ubi forced detach ioctl
Signed-off-by: John Crispin <blogic@openwrt.org> SVN-Revision: 40417
This commit is contained in:
parent
1d5ac95850
commit
1978620045
1 changed files with 41 additions and 0 deletions
|
@ -0,0 +1,41 @@
|
||||||
|
--- a/drivers/mtd/ubi/cdev.c
|
||||||
|
+++ b/drivers/mtd/ubi/cdev.c
|
||||||
|
@@ -974,7 +974,7 @@ static long ubi_cdev_ioctl(struct file *
|
||||||
|
static long ctrl_cdev_ioctl(struct file *file, unsigned int cmd,
|
||||||
|
unsigned long arg)
|
||||||
|
{
|
||||||
|
- int err = 0;
|
||||||
|
+ int err = 0, force = 0;
|
||||||
|
void __user *argp = (void __user *)arg;
|
||||||
|
|
||||||
|
if (!capable(CAP_SYS_RESOURCE))
|
||||||
|
@@ -1024,6 +1024,10 @@ static long ctrl_cdev_ioctl(struct file
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Detach an MTD device command */
|
||||||
|
+ case UBI_IOCFDET:
|
||||||
|
+ force = 1;
|
||||||
|
+ /* no break */
|
||||||
|
+
|
||||||
|
case UBI_IOCDET:
|
||||||
|
{
|
||||||
|
int ubi_num;
|
||||||
|
@@ -1036,7 +1040,7 @@ static long ctrl_cdev_ioctl(struct file
|
||||||
|
}
|
||||||
|
|
||||||
|
mutex_lock(&ubi_devices_mutex);
|
||||||
|
- err = ubi_detach_mtd_dev(ubi_num, 0);
|
||||||
|
+ err = ubi_detach_mtd_dev(ubi_num, force);
|
||||||
|
mutex_unlock(&ubi_devices_mutex);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
--- a/include/uapi/mtd/ubi-user.h
|
||||||
|
+++ b/include/uapi/mtd/ubi-user.h
|
||||||
|
@@ -168,6 +168,7 @@
|
||||||
|
#define UBI_IOCATT _IOW(UBI_CTRL_IOC_MAGIC, 64, struct ubi_attach_req)
|
||||||
|
/* Detach an MTD device */
|
||||||
|
#define UBI_IOCDET _IOW(UBI_CTRL_IOC_MAGIC, 65, __s32)
|
||||||
|
+#define UBI_IOCFDET _IOW(UBI_CTRL_IOC_MAGIC, 99, __s32)
|
||||||
|
|
||||||
|
/* ioctl commands of UBI volume character devices */
|
||||||
|
|
Loading…
Reference in a new issue