+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_DISK_GROUPS_H
#define _BCACHEFS_DISK_GROUPS_H
+#include "disk_groups_types.h"
+
extern const struct bch_sb_field_ops bch_sb_field_ops_disk_groups;
static inline unsigned disk_groups_nr(struct bch_sb_field_disk_groups *groups)
return (struct target) { .type = TARGET_NULL };
}
-static inline bool dev_in_target(struct bch_dev *ca, unsigned target)
-{
- struct target t = target_decode(target);
-
- switch (t.type) {
- case TARGET_NULL:
- return false;
- case TARGET_DEV:
- return ca->dev_idx == t.dev;
- case TARGET_GROUP:
- return ca->mi.group && ca->mi.group - 1 == t.group;
- default:
- BUG();
- }
-}
+const struct bch_devs_mask *bch2_target_to_mask(struct bch_fs *, unsigned);
-static inline bool dev_idx_in_target(struct bch_fs *c, unsigned dev, unsigned target)
+static inline struct bch_devs_mask target_rw_devs(struct bch_fs *c,
+ enum bch_data_type data_type,
+ u16 target)
{
- bool ret;
+ struct bch_devs_mask devs = c->rw_devs[data_type];
+ const struct bch_devs_mask *t = bch2_target_to_mask(c, target);
- rcu_read_lock();
- ret = dev_in_target(rcu_dereference(c->devs[dev]), target);
- rcu_read_unlock();
+ if (t)
+ bitmap_and(devs.d, devs.d, t->d, BCH_SB_MEMBERS_MAX);
+ return devs;
+}
- return ret;
+static inline bool bch2_target_accepts_data(struct bch_fs *c,
+ enum bch_data_type data_type,
+ u16 target)
+{
+ struct bch_devs_mask rw_devs = target_rw_devs(c, data_type, target);
+ return !bitmap_empty(rw_devs.d, BCH_SB_MEMBERS_MAX);
}
-const struct bch_devs_mask *bch2_target_to_mask(struct bch_fs *, unsigned);
+bool bch2_dev_in_target(struct bch_fs *, unsigned, unsigned);
int bch2_disk_path_find(struct bch_sb_handle *, const char *);
+
+/* Exported for userspace bcachefs-tools: */
int bch2_disk_path_find_or_create(struct bch_sb_handle *, const char *);
-int bch2_disk_path_print(struct bch_sb_handle *, char *, size_t, unsigned);
-int bch2_opt_target_parse(struct bch_fs *, const char *, u64 *);
-int bch2_opt_target_print(struct bch_fs *, char *, size_t, u64);
+void bch2_disk_path_to_text(struct printbuf *, struct bch_fs *, unsigned);
+void bch2_disk_path_to_text_sb(struct printbuf *, struct bch_sb *, unsigned);
+
+void bch2_target_to_text(struct printbuf *out, struct bch_fs *, unsigned);
+
+int bch2_opt_target_parse(struct bch_fs *, const char *, u64 *, struct printbuf *);
+void bch2_opt_target_to_text(struct printbuf *, struct bch_fs *, struct bch_sb *, u64);
+
+#define bch2_opt_target (struct bch_opt_fn) { \
+ .parse = bch2_opt_target_parse, \
+ .to_text = bch2_opt_target_to_text, \
+}
int bch2_sb_disk_groups_to_cpu(struct bch_fs *);
+int __bch2_dev_group_set(struct bch_fs *, struct bch_dev *, const char *);
int bch2_dev_group_set(struct bch_fs *, struct bch_dev *, const char *);
const char *bch2_sb_validate_disk_groups(struct bch_sb *,
struct bch_sb_field *);
+void bch2_disk_groups_to_text(struct printbuf *, struct bch_fs *);
+
#endif /* _BCACHEFS_DISK_GROUPS_H */