fs/bcachefs/super.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _BCACHEFS_SUPER_H
   3 #define _BCACHEFS_SUPER_H
   4
   5 #include "extents.h"
   6
   7 #include "bcachefs_ioctl.h"
   8
   9 #include <linux/math64.h>
  10
  11 extern const char * const bch2_fs_flag_strs[];
  12
  13 struct bch_fs *bch2_dev_to_fs(dev_t);
  14 struct bch_fs *bch2_uuid_to_fs(__uuid_t);
  15
  16 bool bch2_dev_state_allowed(struct bch_fs *, struct bch_dev *,
  17                            enum bch_member_state, int);
  18 int __bch2_dev_set_state(struct bch_fs *, struct bch_dev *,
  19                         enum bch_member_state, int);
  20 int bch2_dev_set_state(struct bch_fs *, struct bch_dev *,
  21                       enum bch_member_state, int);
  22
  23 int bch2_dev_fail(struct bch_dev *, int);
  24 int bch2_dev_remove(struct bch_fs *, struct bch_dev *, int);
  25 int bch2_dev_add(struct bch_fs *, const char *);
  26 int bch2_dev_online(struct bch_fs *, const char *);
  27 int bch2_dev_offline(struct bch_fs *, struct bch_dev *, int);
  28 int bch2_dev_resize(struct bch_fs *, struct bch_dev *, u64);
  29 struct bch_dev *bch2_dev_lookup(struct bch_fs *, const char *);
  30
  31 bool bch2_fs_emergency_read_only(struct bch_fs *);
  32 void bch2_fs_read_only(struct bch_fs *);
  33
  34 int bch2_fs_read_write(struct bch_fs *);
  35 int bch2_fs_read_write_early(struct bch_fs *);
  36
  37 /*
  38  * Only for use in the recovery/fsck path:
  39  */
  40 static inline void bch2_fs_lazy_rw(struct bch_fs *c)
  41 {
  42         if (!test_bit(BCH_FS_rw, &c->flags) &&
  43             !test_bit(BCH_FS_was_rw, &c->flags))
  44                 bch2_fs_read_write_early(c);
  45 }
  46
  47 void __bch2_fs_stop(struct bch_fs *);
  48 void bch2_fs_free(struct bch_fs *);
  49 void bch2_fs_stop(struct bch_fs *);
  50
  51 int bch2_fs_start(struct bch_fs *);
  52 struct bch_fs *bch2_fs_open(char * const *, unsigned, struct bch_opts);
  53
  54 #endif /* _BCACHEFS_SUPER_H */