#include <linux/kthread.h>
#include <linux/log2.h>
#include <linux/init.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
/**** Helper functions used for Div, Remainder operation on u64 ****/
return -ENOTTY;
}
+static DEFINE_MUTEX(ffsport_mutex);
+
int GLOB_SBD_unlocked_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg)
{
int ret;
- lock_kernel();
+ mutex_lock(&ffsport_mutex);
ret = GLOB_SBD_ioctl(bdev, mode, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&ffsport_mutex);
return ret;
}