simoop: move sync_file_range calls under -U/--writethrough

Make these optional

Signed-off-by: Chris Mason <clm@fb.com>
1 file changed
tree: d2909796e7efb23a551173cadc8704b4df0aa88c
  1. Makefile
  2. simoop.c
  3. xxhash.c
  4. xxhash.h