Increase default chunk size to 512K

[thirdparty/mdadm.git] / Create.c

diff --git a/Create.c b/Create.c
index c96b31950bc95c5c119e2de95906dddd1e726c5c..1fb40434647445f7a63a429237906922932fa514 100644 (file)
--- a/Create.c
+++ b/Create.c
@@ -234,8 +234,15 @@ int Create(struct supertype *st, char *mddev,
        case 10:
        case 6:
        case 0:
-       case LEVEL_LINEAR: /* linear */
                if (chunk == 0) {
+                       chunk = 512;
+                       if (verbose > 0)
+                               fprintf(stderr, Name ": chunk size defaults to 512K\n");
+               }
+               break;
+       case LEVEL_LINEAR:
+               /* a chunksize of zero 0s perfectly valid (and preferred) since 2.6.16 */
+               if (get_linux_version() < 2006016 && chunk == 0) {
                        chunk = 64;
                        if (verbose > 0)
                                fprintf(stderr, Name ": chunk size defaults to 64K\n");