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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_XATTR_H
#define _BCACHEFS_XATTR_H
#include "str_hash.h"
extern const struct bch_hash_desc bch2_xattr_hash_desc;
const char *bch2_xattr_invalid(const struct bch_fs *, struct bkey_s_c);
void bch2_xattr_to_text(struct bch_fs *, char *, size_t, struct bkey_s_c);
#define bch2_bkey_xattr_ops (struct bkey_ops) { \
.key_invalid = bch2_xattr_invalid, \
.val_to_text = bch2_xattr_to_text, \
}
static inline unsigned xattr_val_u64s(unsigned name_len, unsigned val_len)
{
return DIV_ROUND_UP(offsetof(struct bch_xattr, x_name) +
name_len + val_len, sizeof(u64));
}
#define xattr_val(_xattr) \
((void *) (_xattr)->x_name + (_xattr)->x_name_len)
struct xattr_search_key {
u8 type;
struct qstr name;
};
#define X_SEARCH(_type, _name, _len) ((struct xattr_search_key) \
{ .type = _type, .name = QSTR_INIT(_name, _len) })
struct dentry;
struct xattr_handler;
struct bch_hash_info;
struct bch_inode_info;
int bch2_xattr_get(struct bch_fs *, struct bch_inode_info *,
const char *, void *, size_t, int);
int bch2_xattr_set(struct btree_trans *, u64, const struct bch_hash_info *,
const char *, const void *, size_t, int, int);
ssize_t bch2_xattr_list(struct dentry *, char *, size_t);
extern const struct xattr_handler *bch2_xattr_handlers[];
#endif /* _BCACHEFS_XATTR_H */
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