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-rw-r--r--fs/bcachefs/xattr.h50
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 */