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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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26609b619f
this lets us get rid of a lot of extra switch statements - in a lot of places we dispatch on the btree node type, and then the key type, so this is a nice cleanup across a lot of code. Also improve the on disk format versioning stuff. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_DIRENT_H
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#define _BCACHEFS_DIRENT_H
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#include "str_hash.h"
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extern const struct bch_hash_desc bch2_dirent_hash_desc;
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const char *bch2_dirent_invalid(const struct bch_fs *, struct bkey_s_c);
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void bch2_dirent_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
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#define bch2_bkey_ops_dirent (struct bkey_ops) { \
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.key_invalid = bch2_dirent_invalid, \
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.val_to_text = bch2_dirent_to_text, \
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}
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struct qstr;
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struct file;
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struct dir_context;
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struct bch_fs;
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struct bch_hash_info;
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struct bch_inode_info;
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unsigned bch2_dirent_name_bytes(struct bkey_s_c_dirent);
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static inline unsigned dirent_val_u64s(unsigned len)
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{
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return DIV_ROUND_UP(offsetof(struct bch_dirent, d_name) + len,
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sizeof(u64));
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}
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int __bch2_dirent_create(struct btree_trans *, u64,
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const struct bch_hash_info *, u8,
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const struct qstr *, u64, int);
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int bch2_dirent_create(struct bch_fs *c, u64, const struct bch_hash_info *,
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u8, const struct qstr *, u64, u64 *, int);
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int __bch2_dirent_delete(struct btree_trans *, u64,
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const struct bch_hash_info *,
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const struct qstr *);
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int bch2_dirent_delete(struct bch_fs *, u64, const struct bch_hash_info *,
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const struct qstr *, u64 *);
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enum bch_rename_mode {
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BCH_RENAME,
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BCH_RENAME_OVERWRITE,
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BCH_RENAME_EXCHANGE,
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};
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int bch2_dirent_rename(struct btree_trans *,
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struct bch_inode_info *, const struct qstr *,
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struct bch_inode_info *, const struct qstr *,
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enum bch_rename_mode);
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u64 bch2_dirent_lookup(struct bch_fs *, u64, const struct bch_hash_info *,
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const struct qstr *);
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int bch2_empty_dir(struct bch_fs *, u64);
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int bch2_readdir(struct bch_fs *, struct file *, struct dir_context *);
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#endif /* _BCACHEFS_DIRENT_H */
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