err:
if (td->error && f->mmap_ptr)
munmap(f->mmap_ptr, length);
-
+
return td->error;
}
static int fio_mmapio_init(struct thread_data *td)
{
+ struct thread_options *o = &td->o;
unsigned long shift, mask;
+ if ((td->o.rw_min_bs & page_mask) &&
+ (o->odirect || o->fsync_blocks || o->fdatasync_blocks)) {
+ log_err("fio: mmap options dictate a minimum block size of "
+ "%lu bytes\n", page_size);
+ return 1;
+ }
+
mmap_map_size = MMAP_TOTAL_SZ / td->o.nr_files;
mask = mmap_map_size;
shift = 0;
break;
shift++;
} while (1);
-
+
mmap_map_mask = 1UL << shift;
return 0;
}