bcachefs: Check for unsupported features

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

1 files changed, 15 insertions, 0 deletions

diff --git a/fs/bcachefs/opts.c b/fs/bcachefs/opts.c
index c12af1a86f0b..74e92a196ccd 100644
--- a/fs/bcachefs/opts.c
+++ b/fs/bcachefs/opts.c
@@ -3,6 +3,7 @@
 #include <linux/kernel.h>
 
 #include "bcachefs.h"
+#include "compress.h"
 #include "disk_groups.h"
 #include "opts.h"
 #include "super-io.h"
@@ -269,6 +270,20 @@ void bch2_opt_to_text(struct printbuf *out, struct bch_fs *c,
 	}
 }
 
+int bch2_opt_check_may_set(struct bch_fs *c, int id, u64 v)
+{
+	int ret = 0;
+
+	switch (id) {
+	case Opt_compression:
+	case Opt_background_compression:
+		ret = bch2_check_set_has_compressed_data(c, v);
+		break;
+	}
+
+	return ret;
+}
+
 int bch2_parse_mount_opts(struct bch_opts *opts, char *options)
 {
 	char *opt, *name, *val;