1 files changed, 101 insertions, 0 deletions
diff --git a/fs/bcachefs/inode.h b/fs/bcachefs/inode.h
new file mode 100644
index 000000000000..bd6166c40e6f
--- /dev/null
+++ b/fs/bcachefs/inode.h
@@ -0,0 +1,101 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_INODE_H
+#define _BCACHEFS_INODE_H
+
+#include "opts.h"
+
+#include <linux/math64.h>
+
+const char *bch2_inode_invalid(const struct bch_fs *, struct bkey_s_c);
+void bch2_inode_to_text(struct bch_fs *, char *, size_t, struct bkey_s_c);
+
+#define bch2_bkey_inode_ops (struct bkey_ops) {		\
+	.key_invalid	= bch2_inode_invalid,		\
+	.val_to_text	= bch2_inode_to_text,		\
+}
+
+struct bch_inode_unpacked {
+	u64			bi_inum;
+	__le64			bi_hash_seed;
+	u32			bi_flags;
+	u16			bi_mode;
+
+#define BCH_INODE_FIELD(_name, _bits)	u##_bits _name;
+	BCH_INODE_FIELDS()
+#undef  BCH_INODE_FIELD
+};
+
+struct bkey_inode_buf {
+	struct bkey_i_inode	inode;
+
+#define BCH_INODE_FIELD(_name, _bits)		+ 8 + _bits / 8
+	u8		_pad[0 + BCH_INODE_FIELDS()];
+#undef  BCH_INODE_FIELD
+} __attribute__((packed, aligned(8)));
+
+void bch2_inode_pack(struct bkey_inode_buf *, const struct bch_inode_unpacked *);
+int bch2_inode_unpack(struct bkey_s_c_inode, struct bch_inode_unpacked *);
+
+void bch2_inode_init(struct bch_fs *, struct bch_inode_unpacked *,
+		     uid_t, gid_t, umode_t, dev_t,
+		     struct bch_inode_unpacked *);
+
+int __bch2_inode_create(struct btree_trans *,
+			struct bch_inode_unpacked *,
+			u64, u64, u64 *);
+int bch2_inode_create(struct bch_fs *, struct bch_inode_unpacked *,
+		      u64, u64, u64 *);
+
+int bch2_inode_truncate(struct bch_fs *, u64, u64,
+		       struct extent_insert_hook *, u64 *);
+int bch2_inode_rm(struct bch_fs *, u64);
+
+int bch2_inode_find_by_inum(struct bch_fs *, u64,
+			   struct bch_inode_unpacked *);
+
+static inline struct bch_io_opts bch2_inode_opts_get(struct bch_inode_unpacked *inode)
+{
+	struct bch_io_opts ret = { 0 };
+
+#define BCH_INODE_OPT(_name, _bits)					\
+	if (inode->bi_##_name)						\
+		opt_set(ret, _name, inode->bi_##_name - 1);
+	BCH_INODE_OPTS()
+#undef BCH_INODE_OPT
+	return ret;
+}
+
+static inline void __bch2_inode_opt_set(struct bch_inode_unpacked *inode,
+					enum bch_opt_id id, u64 v)
+{
+	switch (id) {
+#define BCH_INODE_OPT(_name, ...)					\
+	case Opt_##_name:						\
+		inode->bi_##_name = v;					\
+		break;
+	BCH_INODE_OPTS()
+#undef BCH_INODE_OPT
+	default:
+		BUG();
+	}
+}
+
+static inline void bch2_inode_opt_set(struct bch_inode_unpacked *inode,
+				      enum bch_opt_id id, u64 v)
+{
+	return __bch2_inode_opt_set(inode, id, v + 1);
+}
+
+static inline void bch2_inode_opt_clear(struct bch_inode_unpacked *inode,
+					enum bch_opt_id id)
+{
+	return __bch2_inode_opt_set(inode, id, 0);
+}
+
+#ifdef CONFIG_BCACHEFS_DEBUG
+void bch2_inode_pack_test(void);
+#else
+static inline void bch2_inode_pack_test(void) {}
+#endif
+
+#endif /* _BCACHEFS_INODE_H */