As of now _scratch_mkfs_sized check if the requested size is below 1G
and forces the --mixed option for the mkfs.btrfs. Well the correct size
at which we need to force the mixed option is 114294784bytes. Fix that.

Signed-off-by: Anand Jain <[email protected]>
---
 common/rc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common/rc b/common/rc
index d5bb1feee2c3..bcdbf03e1bf0 100644
--- a/common/rc
+++ b/common/rc
@@ -969,7 +969,9 @@ _scratch_mkfs_sized()
        ;;
     btrfs)
        local mixed_opt=
-       (( fssize <= 1024 * 1024 * 1024 )) && mixed_opt='--mixed'
+       # minimum size that's needed without the mixed option.
+       # Non mixed mode is also the default option.
+       (( fssize < 114294784 )) && mixed_opt='--mixed'
        $MKFS_BTRFS_PROG $MKFS_OPTIONS $mixed_opt -b $fssize $SCRATCH_DEV
        ;;
     jfs)
-- 
1.8.3.1

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