Kent Russell
16d110f9c1
Per Philip Yang:
For forked child process, userptr allocated on heap (through malloc)
will have two vmas if child process malloc smaller size buf, free it,
this is on vma cloned from parent process. Then malloc larger size buf,
kernel will put some pages on previous freed space from vma cloned,
create new vma for the rest of pages. This is what IPCTest does.
Change-Id: I054771e20880f975d7cc774225f19aad5363843f
[ROCm/ROCR-Runtime commit: a0b8dd8462]