50 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _BCACHEFS_XATTR_H3#define _BCACHEFS_XATTR_H4 5#include "str_hash.h"6 7extern const struct bch_hash_desc bch2_xattr_hash_desc;8 9int bch2_xattr_validate(struct bch_fs *, struct bkey_s_c, enum bch_validate_flags);10void 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 18static 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 27struct 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 35struct dentry;36struct xattr_handler;37struct bch_hash_info;38struct bch_inode_info;39 40/* Exported for cmd_migrate.c in tools: */41int 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 45ssize_t bch2_xattr_list(struct dentry *, char *, size_t);46 47extern const struct xattr_handler *bch2_xattr_handlers[];48 49#endif /* _BCACHEFS_XATTR_H */50