Don't limit direct IO to 512b aligned

This is a platform restriction at best, eg on Linux block devices must
have 512b memory buffer alignment (or hw sector size). With NFS, this
is not required. And other operating systems may have other limitations
as well, so don't hard core anything.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/init.c b/init.c
index 12734bd17b06a1411e560c6a20f6934e97f12e63..b9cb2bd4a835124e9f8e867bd8f12a02e59fe2aa 100644 (file)
--- a/init.c
+++ b/init.c
@@ -357,14 +357,6 @@ static int fixup_options(struct thread_data *td)
                                 " that isn't seekable. Pre-read disabled.\n");
        }
 
-       if (td->o.mem_align) {
-               if (td->o.odirect && !is_power_of_2(td->o.mem_align)) {
-                       log_err("fio: given IO mem alignment conflicts with"
-                                       " direct=1. Resetting.\n");
-                       td->o.mem_align = page_mask;
-               }
-       }
-                       
        return 0;
 }