Add simple aligned alloc helper
We don't have posix_memalign() on some Solaris and Darwin, so just
add a poor mans implementation of it. Outside of arch code where
we have proper posix_memalign(), this is only used to ensure good
alignment of the io_u in the core code.
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/memalign.h b/memalign.h
new file mode 100644
index 0000000..df412e2
--- /dev/null
+++ b/memalign.h
@@ -0,0 +1,7 @@
+#ifndef FIO_MEMALIGN_H
+#define FIO_MEMALIGN_H
+
+extern void *fio_memalign(size_t alignment, size_t size);
+extern void fio_memfree(void *ptr, size_t size);
+
+#endif