1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _BCACHEFS_XATTR_H
3#define _BCACHEFS_XATTR_H
4
5#include "str_hash.h"
6
7extern const struct bch_hash_desc bch2_xattr_hash_desc;
8
9int bch2_xattr_invalid(struct bch_fs *, struct bkey_s_c,
10		       enum bkey_invalid_flags, struct printbuf *);
11void 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
19static 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
28struct 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
36struct dentry;
37struct xattr_handler;
38struct bch_hash_info;
39struct bch_inode_info;
40
41/* Exported for cmd_migrate.c in tools: */
42int 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
46ssize_t bch2_xattr_list(struct dentry *, char *, size_t);
47
48extern const struct xattr_handler *bch2_xattr_handlers[];
49
50#endif /* _BCACHEFS_XATTR_H */
51