From 53e87fbb5dc887766229eef3ba8bd8ab8853b066 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 9 Sep 2005 16:23:58 -0700 Subject: [PATCH] [PATCH] md: choose better default offset for bitmap. On reflection, a better default location for hot-adding bitmaps with version-1 superblocks is immediately after the superblock. There might not be much room there, but there is usually atleast 3k, and that is a good start. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/md.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 30e3624f3d90..fd66c3958942 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -957,8 +957,7 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev) mddev->events = le64_to_cpu(sb->events); mddev->bitmap_offset = 0; mddev->default_bitmap_offset = 0; - if (mddev->minor_version == 0) - mddev->default_bitmap_offset = -(64*1024)/512; + mddev->default_bitmap_offset = 1024; mddev->recovery_cp = le64_to_cpu(sb->resync_offset); memcpy(mddev->uuid, sb->set_uuid, 16); -- 2.30.2