Change Details

copy_file_range() can be interrupted before copying anything at all, in which case it returns -1 and sets errno to EINTR. If that happens, we should retry, not fail. MFC after: 1 week PR: 293028

Both copy_file_range() and read() / write() in our fallback loop can be interrupted before copying anything at all, in which case it returns -1 and sets errno to EINTR. If that happens, we should retry, not fail. While here, drop the size argument from copy() (we always want to copy the entire file anyway) and add a test case that exercises the metalog and digest functionality. MFC after: 1 week PR: 293028

Both copy_file_range() can be interrupted before copying anything at all, inand read() / write() in our fallback loop can be which case it returns -1 and sets errno to EINTR. If that happensinterrupted before copying anything at all, wein which case it returns -1 and sets errno to EINTR. If that happens, we should retry, not fail. While here, not faildrop the size argument from copy() (we always want to copy the entire file anyway) and add a test case that exercises the metalog and digest functionality. MFC after: 1 week PR: 293028