ext4: speed up _require_ext4_bigalloc and _require_ext4_mkfs_bigalloc

We don't need to make a full-sized file system in order to test
whether "mkfs.ext4 -O bigalloc" works.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Dave Chinner <david@fromorbit.com>

diff --git a/common/rc b/common/rc
index 35d7d5dcc064a869734c2e197f4f5dc6c0bd4bbc..d49137c2618d48d6b2ac23d401a82ea44f9d3a88 100644 (file)
--- a/common/rc
+++ b/common/rc
@@ -1267,7 +1267,7 @@ _require_xfs_crc()
 #
 _require_ext4_mkfs_bigalloc()
 {
-       _scratch_mkfs_ext4 -O bigalloc >/dev/null 2>&1 \
+       $MKFS_EXT4_PROG -F -O bigalloc -n $SCRATCH_DEV 200k >/dev/null 2>&1 \
           || _notrun "mkfs.ext4 doesn't have bigalloc feature"
 }
 
@@ -1275,7 +1275,7 @@ _require_ext4_mkfs_bigalloc()
 #
 _require_ext4_bigalloc()
 {
-       _scratch_mkfs_ext4 -O bigalloc >/dev/null 2>&1
+       $MKFS_EXT4_PROG -F -O bigalloc $SCRATCH_DEV 200k >/dev/null 2>&1
        _scratch_mount >/dev/null 2>&1 \
           || _notrun "Ext4 kernel doesn't support bigalloc feature"
        umount $SCRATCH_MNT