+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _BCACHEFS_INODE_H
-#define _BCACHEFS_INODE_H
-
-#include "bkey.h"
-#include "bkey_methods.h"
-#include "opts.h"
-
-enum bkey_invalid_flags;
-extern const char * const bch2_inode_opts[];
-
-int bch2_inode_invalid(struct bch_fs *, struct bkey_s_c,
- enum bkey_invalid_flags, struct printbuf *);
-int bch2_inode_v2_invalid(struct bch_fs *, struct bkey_s_c,
- enum bkey_invalid_flags, struct printbuf *);
-int bch2_inode_v3_invalid(struct bch_fs *, struct bkey_s_c,
- enum bkey_invalid_flags, struct printbuf *);
-void bch2_inode_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
-
-int bch2_trigger_inode(struct btree_trans *, enum btree_id, unsigned,
- struct bkey_s_c, struct bkey_s, unsigned);
-
-#define bch2_bkey_ops_inode ((struct bkey_ops) { \
- .key_invalid = bch2_inode_invalid, \
- .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_invalid = bch2_inode_v2_invalid, \
- .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_invalid = bch2_inode_v3_invalid, \
- .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_invalid(struct bch_fs *, struct bkey_s_c,
- enum bkey_invalid_flags, struct printbuf *);
-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_invalid = bch2_inode_generation_invalid, \
- .val_to_text = bch2_inode_generation_to_text, \
- .min_val_size = 8, \
-})
-
-#if 0
-typedef struct {
- u64 lo;
- u32 hi;
-} __packed __aligned(4) u96;
-#endif
-typedef u64 u96;
-
-struct bch_inode_unpacked {
- u64 bi_inum;
- 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
-};
-
-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
-} __packed __aligned(8);
-
-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);
-
-int bch2_inode_write_flags(struct btree_trans *, struct btree_iter *,
- struct bch_inode_unpacked *, enum btree_update_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);
-}
-
-void bch2_inode_init_early(struct bch_fs *,
- struct bch_inode_unpacked *);
-void bch2_inode_init_late(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);
-
-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 *);
-
-#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);
-}
-
-/* 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_rm_snapshot(struct btree_trans *, u64, u32);
-int bch2_delete_dead_inodes(struct bch_fs *);
-
-#endif /* _BCACHEFS_INODE_H */
projects / bcachefs-tools-debian / blobdiff