#include <linux/ioctl.h>
#include <linux/blkdev.h>
#include <linux/interrupt.h>
+#include <linux/smp_lock.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <asm/io.h>
static struct floppy_struct floppy_type =
{ 2880,18,2,80,0,0x1B,0x00,0xCF,0x6C,NULL }; /* 7 1.44MB 3.5" */
-static int floppy_ioctl(struct block_device *bdev, fmode_t mode,
+static int floppy_locked_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long param)
{
struct floppy_state *fs = bdev->bd_disk->private_data;
return -ENOTTY;
}
+static int floppy_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long param)
+{
+ int ret;
+
+ lock_kernel();
+ ret = floppy_locked_ioctl(bdev, mode, cmd, param);
+ unlock_kernel();
+
+ return ret;
+}
+
static int floppy_open(struct block_device *bdev, fmode_t mode)
{
struct floppy_state *fs = bdev->bd_disk->private_data;
return 0;
}
+static int floppy_unlocked_open(struct block_device *bdev, fmode_t mode)
+{
+ int ret;
+
+ lock_kernel();
+ ret = floppy_open(bdev, mode);
+ unlock_kernel();
+
+ return ret;
+}
+
static int floppy_release(struct gendisk *disk, fmode_t mode)
{
struct floppy_state *fs = disk->private_data;
struct swim3 __iomem *sw = fs->swim3;
+ lock_kernel();
if (fs->ref_count > 0 && --fs->ref_count == 0) {
swim3_action(fs, MOTOR_OFF);
out_8(&sw->control_bic, 0xff);
swim3_select(fs, RELAX);
}
+ unlock_kernel();
return 0;
}
}
static const struct block_device_operations floppy_fops = {
- .open = floppy_open,
+ .open = floppy_unlocked_open,
.release = floppy_release,
- .locked_ioctl = floppy_ioctl,
+ .ioctl = floppy_ioctl,
.media_changed = floppy_check_change,
.revalidate_disk= floppy_revalidate,
};