On 2021-11-09 6:04 p.m., Philip Yang wrote:
Before restore pages takes mmap read or write lock, vma maybe removed.
Check if vma exists before creating unregistered range or verifying
range access permission, and return 0 if vma is removed to avoid restore
pages return failure to report GPU vm fau
Before restore pages takes mmap read or write lock, vma maybe removed.
Check if vma exists before creating unregistered range or verifying
range access permission, and return 0 if vma is removed to avoid restore
pages return failure to report GPU vm fault to application.
Signed-off-by: Philip Yang
