Rename from bcache-tools to bcachefs-tools

1 files changed, 130 insertions, 0 deletions

diff --git a/libbcachefs/super.h b/libbcachefs/super.h
new file mode 100644
index 00000000..94424414
--- /dev/null
+++ b/libbcachefs/super.h
@@ -0,0 +1,130 @@
+#ifndef _BCACHE_SUPER_H
+#define _BCACHE_SUPER_H
+
+#include "extents.h"
+
+#include "bcachefs_ioctl.h"
+
+static inline size_t sector_to_bucket(const struct bch_dev *ca, sector_t s)
+{
+	return s >> ca->bucket_bits;
+}
+
+static inline sector_t bucket_to_sector(const struct bch_dev *ca, size_t b)
+{
+	return ((sector_t) b) << ca->bucket_bits;
+}
+
+static inline sector_t bucket_remainder(const struct bch_dev *ca, sector_t s)
+{
+	return s & (ca->mi.bucket_size - 1);
+}
+
+static inline struct bch_dev *__bch2_next_dev(struct bch_fs *c, unsigned *iter)
+{
+	struct bch_dev *ca = NULL;
+
+	while (*iter < c->sb.nr_devices &&
+	       !(ca = rcu_dereference_check(c->devs[*iter],
+					    lockdep_is_held(&c->state_lock))))
+		(*iter)++;
+
+	return ca;
+}
+
+#define __for_each_member_device(ca, c, iter)				\
+	for ((iter) = 0; ((ca) = __bch2_next_dev((c), &(iter))); (iter)++)
+
+#define for_each_member_device_rcu(ca, c, iter)				\
+	__for_each_member_device(ca, c, iter)
+
+static inline struct bch_dev *bch2_get_next_dev(struct bch_fs *c, unsigned *iter)
+{
+	struct bch_dev *ca;
+
+	rcu_read_lock();
+	if ((ca = __bch2_next_dev(c, iter)))
+		percpu_ref_get(&ca->ref);
+	rcu_read_unlock();
+
+	return ca;
+}
+
+/*
+ * If you break early, you must drop your ref on the current device
+ */
+#define for_each_member_device(ca, c, iter)				\
+	for ((iter) = 0;						\
+	     (ca = bch2_get_next_dev(c, &(iter)));			\
+	     percpu_ref_put(&ca->ref), (iter)++)
+
+static inline struct bch_dev *bch2_get_next_online_dev(struct bch_fs *c,
+						      unsigned *iter,
+						      int state_mask)
+{
+	struct bch_dev *ca;
+
+	rcu_read_lock();
+	while ((ca = __bch2_next_dev(c, iter)) &&
+	       (!((1 << ca->mi.state) & state_mask) ||
+		!percpu_ref_tryget(&ca->io_ref)))
+		(*iter)++;
+	rcu_read_unlock();
+
+	return ca;
+}
+
+#define __for_each_online_member(ca, c, iter, state_mask)		\
+	for ((iter) = 0;						\
+	     (ca = bch2_get_next_online_dev(c, &(iter), state_mask));	\
+	     percpu_ref_put(&ca->io_ref), (iter)++)
+
+#define for_each_online_member(ca, c, iter)				\
+	__for_each_online_member(ca, c, iter, ~0)
+
+#define for_each_rw_member(ca, c, iter)					\
+	__for_each_online_member(ca, c, iter, 1 << BCH_MEMBER_STATE_RW)
+
+#define for_each_readable_member(ca, c, iter)				\
+	__for_each_online_member(ca, c, iter,				\
+		(1 << BCH_MEMBER_STATE_RW)|(1 << BCH_MEMBER_STATE_RO))
+
+struct bch_fs *bch2_bdev_to_fs(struct block_device *);
+struct bch_fs *bch2_uuid_to_fs(uuid_le);
+int bch2_congested(struct bch_fs *, int);
+
+void bch2_dev_release(struct kobject *);
+
+bool bch2_dev_state_allowed(struct bch_fs *, struct bch_dev *,
+			   enum bch_member_state, int);
+int __bch2_dev_set_state(struct bch_fs *, struct bch_dev *,
+			enum bch_member_state, int);
+int bch2_dev_set_state(struct bch_fs *, struct bch_dev *,
+		      enum bch_member_state, int);
+
+int bch2_dev_fail(struct bch_dev *, int);
+int bch2_dev_remove(struct bch_fs *, struct bch_dev *, int);
+int bch2_dev_add(struct bch_fs *, const char *);
+int bch2_dev_online(struct bch_fs *, const char *);
+int bch2_dev_offline(struct bch_fs *, struct bch_dev *, int);
+int bch2_dev_evacuate(struct bch_fs *, struct bch_dev *);
+
+bool bch2_fs_emergency_read_only(struct bch_fs *);
+void bch2_fs_read_only(struct bch_fs *);
+const char *bch2_fs_read_write(struct bch_fs *);
+
+void bch2_fs_release(struct kobject *);
+void bch2_fs_stop(struct bch_fs *);
+
+const char *bch2_fs_start(struct bch_fs *);
+const char *bch2_fs_open(char * const *, unsigned, struct bch_opts,
+			struct bch_fs **);
+const char *bch2_fs_open_incremental(const char *path);
+
+extern struct kobj_type bch2_fs_ktype;
+extern struct kobj_type bch2_fs_internal_ktype;
+extern struct kobj_type bch2_fs_time_stats_ktype;
+extern struct kobj_type bch2_fs_opts_dir_ktype;
+extern struct kobj_type bch2_dev_ktype;
+
+#endif /* _BCACHE_SUPER_H */