bcachefs: bch2_dev_safe() -> bch2_dev_rcu()

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

fs/bcachefs/extents.c

@@ -983,7 +983,7 @@ void bch2_extent_ptr_to_text(struct printbuf *out, struct bch_fs *c, const struc
 {
 	out->atomic++;
 	rcu_read_lock();
-	struct bch_dev *ca = bch2_dev_safe(c, ptr->dev);
+	struct bch_dev *ca = bch2_dev_rcu(c, ptr->dev);
 	if (!ca) {
 		prt_printf(out, "ptr: %u:%llu gen %u%s", ptr->dev,
 			   (u64) ptr->offset, ptr->gen,

fs/bcachefs/sb-members.c

@@ -3,6 +3,7 @@
 #include "bcachefs.h"
 #include "btree_cache.h"
 #include "disk_groups.h"
+#include "error.h"
 #include "opts.h"
 #include "replicas.h"
 #include "sb-members.h"

fs/bcachefs/sb-members.h

@@ -210,7 +210,7 @@ static inline struct bch_dev *bch2_dev_locked(struct bch_fs *c, unsigned dev)
 					 lockdep_is_held(&c->state_lock));
 }
 
-static inline struct bch_dev *bch2_dev_safe(struct bch_fs *c, unsigned dev)
+static inline struct bch_dev *bch2_dev_rcu(struct bch_fs *c, unsigned dev)
 {
 	return c && dev < c->sb.nr_devices
 		? rcu_dereference(c->devs[dev])