mdadm: ask user if bitmap is not set

Instead of auto-forcing bitmap only for large arrays, it is more
reasonable to let user do the chooice if bimtap is not set.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/mdadm.c b/mdadm.c
index 8cb4ba66..b7bcb336 100644
--- a/mdadm.c
+++ b/mdadm.c
@@ -1535,6 +1535,14 @@ int main(int argc, char *argv[])
 			break;
 		}
 
+		if (!s.bitmap_file) {
+			if (c.runstop != 1 && s.level >= 1 &&
+			    ask("To optimalize recovery speed, it is recommended to enable write-indent bitmap, do you want to enable it now?"))
+				s.bitmap_file = "internal";
+			else
+				s.bitmap_file = "none";
+		}
+
 		rv = Create(ss, &ident, devs_found - 1, devlist->next, &s, &c);
 		break;
 	case MISC: