doubts for copy_from_user

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

We use copy_from_user/copy_to_user functions to copy data transfer
user data between user space and kernel space. As per my
understanding, these functions are required because we cannot access
userspace data directly within kernel space. But, the implementation
of these functions actually access the user-space data right? Can
someone explain me how this actually happens?

Vishal

_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@xxxxxxxxxxxxxxxxx
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies


[Index of Archives]     [Newbies FAQ]     [Linux Kernel Mentors]     [Linux Kernel Development]     [IETF Annouce]     [Git]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux SCSI]     [Linux ACPI]
  Powered by Linux