diff options
Diffstat (limited to 'fs/bcachefs/inode.h')
-rw-r--r-- | fs/bcachefs/inode.h | 319 |
1 files changed, 0 insertions, 319 deletions
diff --git a/fs/bcachefs/inode.h b/fs/bcachefs/inode.h deleted file mode 100644 index b8ec3e628d90..000000000000 --- a/fs/bcachefs/inode.h +++ /dev/null @@ -1,319 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _BCACHEFS_INODE_H -#define _BCACHEFS_INODE_H - -#include "bkey.h" -#include "bkey_methods.h" -#include "opts.h" -#include "snapshot.h" - -extern const char * const bch2_inode_opts[]; - -int bch2_inode_validate(struct bch_fs *, struct bkey_s_c, - struct bkey_validate_context); -int bch2_inode_v2_validate(struct bch_fs *, struct bkey_s_c, - struct bkey_validate_context); -int bch2_inode_v3_validate(struct bch_fs *, struct bkey_s_c, - struct bkey_validate_context); -void bch2_inode_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c); - -int __bch2_inode_has_child_snapshots(struct btree_trans *, struct bpos); - -static inline int bch2_inode_has_child_snapshots(struct btree_trans *trans, struct bpos pos) -{ - return bch2_snapshot_is_leaf(trans->c, pos.snapshot) <= 0 - ? __bch2_inode_has_child_snapshots(trans, pos) - : 0; -} - -int bch2_trigger_inode(struct btree_trans *, enum btree_id, unsigned, - struct bkey_s_c, struct bkey_s, - enum btree_iter_update_trigger_flags); - -#define bch2_bkey_ops_inode ((struct bkey_ops) { \ - .key_validate = bch2_inode_validate, \ - .val_to_text = bch2_inode_to_text, \ - .trigger = bch2_trigger_inode, \ - .min_val_size = 16, \ -}) - -#define bch2_bkey_ops_inode_v2 ((struct bkey_ops) { \ - .key_validate = bch2_inode_v2_validate, \ - .val_to_text = bch2_inode_to_text, \ - .trigger = bch2_trigger_inode, \ - .min_val_size = 32, \ -}) - -#define bch2_bkey_ops_inode_v3 ((struct bkey_ops) { \ - .key_validate = bch2_inode_v3_validate, \ - .val_to_text = bch2_inode_to_text, \ - .trigger = bch2_trigger_inode, \ - .min_val_size = 48, \ -}) - -static inline bool bkey_is_inode(const struct bkey *k) -{ - return k->type == KEY_TYPE_inode || - k->type == KEY_TYPE_inode_v2 || - k->type == KEY_TYPE_inode_v3; -} - -int bch2_inode_generation_validate(struct bch_fs *, struct bkey_s_c, - struct bkey_validate_context); -void bch2_inode_generation_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c); - -#define bch2_bkey_ops_inode_generation ((struct bkey_ops) { \ - .key_validate = bch2_inode_generation_validate, \ - .val_to_text = bch2_inode_generation_to_text, \ - .min_val_size = 8, \ -}) - -int bch2_inode_alloc_cursor_validate(struct bch_fs *, struct bkey_s_c, - struct bkey_validate_context); -void bch2_inode_alloc_cursor_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c); - -#define bch2_bkey_ops_inode_alloc_cursor ((struct bkey_ops) { \ - .key_validate = bch2_inode_alloc_cursor_validate, \ - .val_to_text = bch2_inode_alloc_cursor_to_text, \ - .min_val_size = 16, \ -}) - -#if 0 -typedef struct { - u64 lo; - u32 hi; -} __packed __aligned(4) u96; -#endif -typedef u64 u96; - -struct bch_inode_unpacked { - u64 bi_inum; - u32 bi_snapshot; - u64 bi_journal_seq; - __le64 bi_hash_seed; - u64 bi_size; - u64 bi_sectors; - u64 bi_version; - u32 bi_flags; - u16 bi_mode; - -#define x(_name, _bits) u##_bits _name; - BCH_INODE_FIELDS_v3() -#undef x -}; -BITMASK(INODE_STR_HASH, struct bch_inode_unpacked, bi_flags, 20, 24); - -struct bkey_inode_buf { - struct bkey_i_inode_v3 inode; - -#define x(_name, _bits) + 8 + _bits / 8 - u8 _pad[0 + BCH_INODE_FIELDS_v3()]; -#undef x -}; - -void bch2_inode_pack(struct bkey_inode_buf *, const struct bch_inode_unpacked *); -int bch2_inode_unpack(struct bkey_s_c, struct bch_inode_unpacked *); -struct bkey_i *bch2_inode_to_v3(struct btree_trans *, struct bkey_i *); - -void bch2_inode_unpacked_to_text(struct printbuf *, struct bch_inode_unpacked *); - -int __bch2_inode_peek(struct btree_trans *, struct btree_iter *, - struct bch_inode_unpacked *, subvol_inum, unsigned, bool); - -static inline int bch2_inode_peek_nowarn(struct btree_trans *trans, - struct btree_iter *iter, - struct bch_inode_unpacked *inode, - subvol_inum inum, unsigned flags) -{ - return __bch2_inode_peek(trans, iter, inode, inum, flags, false); -} - -static inline int bch2_inode_peek(struct btree_trans *trans, - struct btree_iter *iter, - struct bch_inode_unpacked *inode, - subvol_inum inum, unsigned flags) -{ - return __bch2_inode_peek(trans, iter, inode, inum, flags, true); -} - -int bch2_inode_find_by_inum_snapshot(struct btree_trans *, u64, u32, - struct bch_inode_unpacked *, unsigned); -int bch2_inode_find_by_inum_nowarn_trans(struct btree_trans *, - subvol_inum, - struct bch_inode_unpacked *); -int bch2_inode_find_by_inum_trans(struct btree_trans *, subvol_inum, - struct bch_inode_unpacked *); -int bch2_inode_find_by_inum(struct bch_fs *, subvol_inum, - struct bch_inode_unpacked *); - -int bch2_inode_find_snapshot_root(struct btree_trans *trans, u64 inum, - struct bch_inode_unpacked *root); - -int bch2_inode_write_flags(struct btree_trans *, struct btree_iter *, - struct bch_inode_unpacked *, enum btree_iter_update_trigger_flags); - -static inline int bch2_inode_write(struct btree_trans *trans, - struct btree_iter *iter, - struct bch_inode_unpacked *inode) -{ - return bch2_inode_write_flags(trans, iter, inode, 0); -} - -int __bch2_fsck_write_inode(struct btree_trans *, struct bch_inode_unpacked *); -int bch2_fsck_write_inode(struct btree_trans *, struct bch_inode_unpacked *); - -void bch2_inode_init_early(struct bch_fs *, - struct bch_inode_unpacked *); -void bch2_inode_init_late(struct bch_fs *, struct bch_inode_unpacked *, u64, - uid_t, gid_t, umode_t, dev_t, - struct bch_inode_unpacked *); -void bch2_inode_init(struct bch_fs *, struct bch_inode_unpacked *, - uid_t, gid_t, umode_t, dev_t, - struct bch_inode_unpacked *); - -int bch2_inode_create(struct btree_trans *, struct btree_iter *, - struct bch_inode_unpacked *, u32, u64); - -int bch2_inode_rm(struct bch_fs *, subvol_inum); - -#define inode_opt_get(_c, _inode, _name) \ - ((_inode)->bi_##_name ? (_inode)->bi_##_name - 1 : (_c)->opts._name) - -static inline void bch2_inode_opt_set(struct bch_inode_unpacked *inode, - enum inode_opt_id id, u64 v) -{ - switch (id) { -#define x(_name, ...) \ - case Inode_opt_##_name: \ - inode->bi_##_name = v; \ - break; - BCH_INODE_OPTS() -#undef x - default: - BUG(); - } -} - -static inline u64 bch2_inode_opt_get(struct bch_inode_unpacked *inode, - enum inode_opt_id id) -{ - switch (id) { -#define x(_name, ...) \ - case Inode_opt_##_name: \ - return inode->bi_##_name; - BCH_INODE_OPTS() -#undef x - default: - BUG(); - } -} - -static inline u8 mode_to_type(umode_t mode) -{ - return (mode >> 12) & 15; -} - -static inline u8 inode_d_type(struct bch_inode_unpacked *inode) -{ - return inode->bi_subvol ? DT_SUBVOL : mode_to_type(inode->bi_mode); -} - -static inline u32 bch2_inode_flags(struct bkey_s_c k) -{ - switch (k.k->type) { - case KEY_TYPE_inode: - return le32_to_cpu(bkey_s_c_to_inode(k).v->bi_flags); - case KEY_TYPE_inode_v2: - return le64_to_cpu(bkey_s_c_to_inode_v2(k).v->bi_flags); - case KEY_TYPE_inode_v3: - return le64_to_cpu(bkey_s_c_to_inode_v3(k).v->bi_flags); - default: - return 0; - } -} - -static inline unsigned bkey_inode_mode(struct bkey_s_c k) -{ - switch (k.k->type) { - case KEY_TYPE_inode: - return le16_to_cpu(bkey_s_c_to_inode(k).v->bi_mode); - case KEY_TYPE_inode_v2: - return le16_to_cpu(bkey_s_c_to_inode_v2(k).v->bi_mode); - case KEY_TYPE_inode_v3: - return INODEv3_MODE(bkey_s_c_to_inode_v3(k).v); - default: - return 0; - } -} - -static inline bool bch2_inode_casefold(struct bch_fs *c, const struct bch_inode_unpacked *bi) -{ - /* inode opts are stored with a +1 bias: 0 means "unset, use fs opt" */ - return bi->bi_casefold - ? bi->bi_casefold - 1 - : c->opts.casefold; -} - -static inline bool bch2_inode_has_backpointer(const struct bch_inode_unpacked *bi) -{ - return bi->bi_dir || bi->bi_dir_offset; -} - -/* i_nlink: */ - -static inline unsigned nlink_bias(umode_t mode) -{ - return S_ISDIR(mode) ? 2 : 1; -} - -static inline unsigned bch2_inode_nlink_get(struct bch_inode_unpacked *bi) -{ - return bi->bi_flags & BCH_INODE_unlinked - ? 0 - : bi->bi_nlink + nlink_bias(bi->bi_mode); -} - -static inline void bch2_inode_nlink_set(struct bch_inode_unpacked *bi, - unsigned nlink) -{ - if (nlink) { - bi->bi_nlink = nlink - nlink_bias(bi->bi_mode); - bi->bi_flags &= ~BCH_INODE_unlinked; - } else { - bi->bi_nlink = 0; - bi->bi_flags |= BCH_INODE_unlinked; - } -} - -int bch2_inode_nlink_inc(struct bch_inode_unpacked *); -void bch2_inode_nlink_dec(struct btree_trans *, struct bch_inode_unpacked *); - -struct bch_opts bch2_inode_opts_to_opts(struct bch_inode_unpacked *); -void bch2_inode_opts_get(struct bch_io_opts *, struct bch_fs *, - struct bch_inode_unpacked *); -int bch2_inum_opts_get(struct btree_trans *, subvol_inum, struct bch_io_opts *); -int bch2_inode_set_casefold(struct btree_trans *, subvol_inum, - struct bch_inode_unpacked *, unsigned); - -#include "rebalance.h" - -static inline struct bch_extent_rebalance -bch2_inode_rebalance_opts_get(struct bch_fs *c, struct bch_inode_unpacked *inode) -{ - struct bch_io_opts io_opts; - bch2_inode_opts_get(&io_opts, c, inode); - return io_opts_to_rebalance_opts(c, &io_opts); -} - -#define BCACHEFS_ROOT_SUBVOL_INUM \ - ((subvol_inum) { BCACHEFS_ROOT_SUBVOL, BCACHEFS_ROOT_INO }) - -static inline bool subvol_inum_eq(subvol_inum a, subvol_inum b) -{ - return a.subvol == b.subvol && a.inum == b.inum; -} - -int bch2_inode_rm_snapshot(struct btree_trans *, u64, u32); -int bch2_delete_dead_inodes(struct bch_fs *); - -#endif /* _BCACHEFS_INODE_H */ |