btrfs-progs: mkfs: Move out some nodesize code

Move the constant DEFAULT_MKFS_LEAF_SIZE to utils.h and rename it to
BTRFS_MKFS_DEFAULT_NODE_SIZE for consistency. Move the function
check_leaf_or_node_size to utils.c and rename it to
btrfs_check_node_or_leaf_size.

Signed-off-by: Sebastian Thorarensen <sebth@naju.se>
[added btrfs_ prefix]
Signed-off-by: David Sterba <dsterba@suse.cz>

1 files changed, 21 insertions, 0 deletions

diff --git a/utils.c b/utils.c
index 6228c7fe..17f31fc3 100644
--- a/utils.c
+++ b/utils.c
@@ -2720,3 +2720,24 @@ int btrfs_tree_search2_ioctl_supported(int fd)
 
 	return v2_supported;
 }
+
+int btrfs_check_node_or_leaf_size(u32 size, u32 sectorsize)
+{
+	if (size < sectorsize) {
+		fprintf(stderr,
+			"Illegal leafsize (or nodesize) %u (smaller than %u)\n",
+			size, sectorsize);
+		return -1;
+	} else if (size > BTRFS_MAX_METADATA_BLOCKSIZE) {
+		fprintf(stderr,
+			"Illegal leafsize (or nodesize) %u (larger than %u)\n",
+			size, BTRFS_MAX_METADATA_BLOCKSIZE);
+		return -1;
+	} else if (size & (sectorsize - 1)) {
+		fprintf(stderr,
+			"Illegal leafsize (or nodesize) %u (not align to %u)\n",
+			size, sectorsize);
+		return -1;
+	}
+	return 0;
+}