On Thu, Nov 04, 2021 at 10:32:35AM -0700, Darrick J. Wong wrote: > I also wonder if it would be useful (since we're already having a > discussion elsewhere about data integrity syscalls for pmem) to be able > to call this sort of thing against files? In which case we'd want > another preadv2 flag or something, and then plumb all that through the > vfs/iomap as needed? IFF we do this (can't answer if there is a need) we should not overload read with it. It is an operation that does not return data but just a status, so let's not get into that mess.
