fault_in_user_writeable9
Fault in user address and verify rw access
Usage
int fault_in_user_writeable(u32 __user * uaddr);
Arguments
uaddr
pointer to faulting user space address
Overview
Slow path to fixup the fault we just took in the atomic write access to uaddr.
We have no generic implementation of a non-destructive write to the user address. We know that we faulted in the atomic pagefault disabled section so we can as well avoid the #PF overhead by calling get_user_pages right away.
Releases
2 releases since Debian 8 (Jessie); the text changed 1 time.