1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _BCACHEFS_XATTR_H 3 #define _BCACHEFS_XATTR_H 4 5 #include "str_hash.h" 6 7 extern const struct bch_hash_desc bch2_xattr_hash_desc; 8 9 int bch2_xattr_validate(struct bch_fs *, struct bkey_s_c, enum bch_validate_flags); 10 void bch2_xattr_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c); 11 12 #define bch2_bkey_ops_xattr ((struct bkey_ops) { \ 13 .key_validate = bch2_xattr_validate, \ 14 .val_to_text = bch2_xattr_to_text, \ 15 .min_val_size = 8, \ 16 }) 17 18 static inline unsigned xattr_val_u64s(unsigned name_len, unsigned val_len) 19 { 20 return DIV_ROUND_UP(offsetof(struct bch_xattr, x_name) + 21 name_len + val_len, sizeof(u64)); 22 } 23 24 #define xattr_val(_xattr) \ 25 ((void *) (_xattr)->x_name + (_xattr)->x_name_len) 26 27 struct xattr_search_key { 28 u8 type; 29 struct qstr name; 30 }; 31 32 #define X_SEARCH(_type, _name, _len) ((struct xattr_search_key) \ 33 { .type = _type, .name = QSTR_INIT(_name, _len) }) 34 35 struct dentry; 36 struct xattr_handler; 37 struct bch_hash_info; 38 struct bch_inode_info; 39 40 /* Exported for cmd_migrate.c in tools: */ 41 int bch2_xattr_set(struct btree_trans *, subvol_inum, 42 struct bch_inode_unpacked *, const struct bch_hash_info *, 43 const char *, const void *, size_t, int, int); 44 45 ssize_t bch2_xattr_list(struct dentry *, char *, size_t); 46 47 extern const struct xattr_handler *bch2_xattr_handlers[]; 48 49 #endif /* _BCACHEFS_XATTR_H */ 50