Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Kent Overstreet | 478 | 93.54% | 11 | 84.62% |
Brian Foster | 33 | 6.46% | 2 | 15.38% |
Total | 511 | 13 |
/* 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 groups ? (vstruct_end(&groups->field) - (void *) &groups->entries[0]) / sizeof(struct bch_disk_group) : 0; } struct target { enum { TARGET_NULL, TARGET_DEV, TARGET_GROUP, } type; union { unsigned dev; unsigned group; }; }; #define TARGET_DEV_START 1 #define TARGET_GROUP_START (256 + TARGET_DEV_START) static inline u16 dev_to_target(unsigned dev) { return TARGET_DEV_START + dev; } static inline u16 group_to_target(unsigned group) { return TARGET_GROUP_START + group; } static inline struct target target_decode(unsigned target) { if (target >= TARGET_GROUP_START) return (struct target) { .type = TARGET_GROUP, .group = target - TARGET_GROUP_START }; if (target >= TARGET_DEV_START) return (struct target) { .type = TARGET_DEV, .group = target - TARGET_DEV_START }; return (struct target) { .type = TARGET_NULL }; } const struct bch_devs_mask *bch2_target_to_mask(struct bch_fs *, unsigned); static inline struct bch_devs_mask target_rw_devs(struct bch_fs *c, enum bch_data_type data_type, u16 target) { struct bch_devs_mask devs = c->rw_devs[data_type]; const struct bch_devs_mask *t = bch2_target_to_mask(c, target); if (t) bitmap_and(devs.d, devs.d, t->d, BCH_SB_MEMBERS_MAX); return devs; } 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); } 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 *); 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 */
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