diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 35489e7129a7e8de9d0232279d41d3bbd19ae1df..99059fcb563e743ebe7ed1ee6e8c251fc167fe65 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -174,7 +174,7 @@ struct btrfs_ordered_sum;
 /* csum types */
 #define BTRFS_CSUM_TYPE_CRC32	0
 
-static int btrfs_csum_sizes[] = { 4 };
+static const int btrfs_csum_sizes[] = { 4 };
 
 /* four bytes for CRC32 */
 #define BTRFS_EMPTY_DIR_SIZE 0
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index c4cfba79ab47531b02dc0e56e943e09a942ff41b..3e1398b123aa7926f31cb9ebf755c1fca97d4b09 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -83,7 +83,7 @@ struct kmem_cache *btrfs_path_cachep;
 struct kmem_cache *btrfs_free_space_cachep;
 
 #define S_SHIFT 12
-static unsigned char btrfs_type_by_mode[S_IFMT >> S_SHIFT] = {
+static const unsigned char btrfs_type_by_mode[S_IFMT >> S_SHIFT] = {
 	[S_IFREG >> S_SHIFT]	= BTRFS_FT_REG_FILE,
 	[S_IFDIR >> S_SHIFT]	= BTRFS_FT_DIR,
 	[S_IFCHR >> S_SHIFT]	= BTRFS_FT_CHRDEV,
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index da94138eb85eb3f15f127b08c54a113715956686..fd429d7f40abcf600907f7589726e8ca271af1d8 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -5286,7 +5286,7 @@ static int btrfs_ioctl_set_fslabel(struct file *file, void __user *arg)
 static int btrfs_ioctl_get_supported_features(struct file *file,
 					      void __user *arg)
 {
-	static struct btrfs_ioctl_feature_flags features[3] = {
+	static const struct btrfs_ioctl_feature_flags features[3] = {
 		INIT_FEATURE_FLAGS(SUPP),
 		INIT_FEATURE_FLAGS(SAFE_SET),
 		INIT_FEATURE_FLAGS(SAFE_CLEAR)
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 24154e422945167f474557887c62acaf6ed0779c..b813fd76f03f74b286aeeb4d51e3af31d95d3eb6 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -309,7 +309,7 @@ enum {
 	Opt_err,
 };
 
-static match_table_t tokens = {
+static const match_table_t tokens = {
 	{Opt_degraded, "degraded"},
 	{Opt_subvol, "subvol=%s"},
 	{Opt_subvolid, "subvolid=%s"},