Provided by: linux-doc-2.6.15_2.6.15-23.39_all
__copy_from_user_inatomic - Copy a block of data from user space, with
unsigned long __copy_from_user_inatomic (void * to,
const void __user * from,
unsigned long n);
to Destination address, in kernel space.
from Source address, in user space.
n Number of bytes to copy.
User context only. This function may sleep.
Copy data from user space to kernel space. Caller must check the
specified block with access_ok before calling this function.
Returns number of bytes that could not be copied. On success, this will
If some data could not be copied, this function will pad the copied
data to the requested size using zero bytes.