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_invalid(struct bch_fs *, struct bkey_s_c, 10 enum bkey_invalid_flags, struct printbuf *); 11 void bch2_xattr_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c); 12 13 #define bch2_bkey_ops_xattr ((struct bkey_ops) { \ 14 .key_invalid = bch2_xattr_invalid, \ 15 .val_to_text = bch2_xattr_to_text, \ 16 .min_val_size = 8, \ 17 }) 18 19 static inline unsigned xattr_val_u64s(unsigned name_len, unsigned val_len) 20 { 21 return DIV_ROUND_UP(offsetof(struct bch_xattr, x_name) + 22 name_len + val_len, sizeof(u64)); 23 } 24 25 #define xattr_val(_xattr) \ 26 ((void *) (_xattr)->x_name + (_xattr)->x_name_len) 27 28 struct xattr_search_key { 29 u8 type; 30 struct qstr name; 31 }; 32 33 #define X_SEARCH(_type, _name, _len) ((struct xattr_search_key) \ 34 { .type = _type, .name = QSTR_INIT(_name, _len) }) 35 36 struct dentry; 37 struct xattr_handler; 38 struct bch_hash_info; 39 struct bch_inode_info; 40 41 /* Exported for cmd_migrate.c in tools: */ 42 int bch2_xattr_set(struct btree_trans *, subvol_inum, 43 struct bch_inode_unpacked *, const struct bch_hash_info *, 44 const char *, const void *, size_t, int, int); 45 46 ssize_t bch2_xattr_list(struct dentry *, char *, size_t); 47 48 extern const struct xattr_handler *bch2_xattr_handlers[]; 49 50 #endif /* _BCACHEFS_XATTR_H */ 51