diff options
Diffstat (limited to 'fs/bcachefs/xattr.h')
| -rw-r--r-- | fs/bcachefs/xattr.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/fs/bcachefs/xattr.h b/fs/bcachefs/xattr.h new file mode 100644 index 0000000000..1337f31a5c --- /dev/null +++ b/fs/bcachefs/xattr.h @@ -0,0 +1,50 @@ +/* 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; + +int bch2_xattr_invalid(struct bch_fs *, struct bkey_s_c, + enum bkey_invalid_flags, struct printbuf *); +void bch2_xattr_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c); + +#define bch2_bkey_ops_xattr ((struct bkey_ops) { \ + .key_invalid = bch2_xattr_invalid, \ + .val_to_text = bch2_xattr_to_text, \ + .min_val_size = 8, \ +}) + +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; + +/* Exported for cmd_migrate.c in tools: */ +int bch2_xattr_set(struct btree_trans *, subvol_inum, + struct bch_inode_unpacked *, 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 */ |