+static bool fio_madvise_file(struct thread_data *td, struct fio_file *f,
+ size_t length)
+
+{
+ struct fio_mmap_data *fmd = FILE_ENG_DATA(f);
+
+ if (!td->o.fadvise_hint)
+ return true;
+
+ if (!td_random(td)) {
+ if (posix_madvise(fmd->mmap_ptr, length, POSIX_MADV_SEQUENTIAL) < 0) {
+ td_verror(td, errno, "madvise");
+ return false;
+ }
+ } else {
+ if (posix_madvise(fmd->mmap_ptr, length, POSIX_MADV_RANDOM) < 0) {
+ td_verror(td, errno, "madvise");
+ return false;
+ }
+ }
+
+ return true;
+}
+