X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libbcachefs%2Finode.h;h=5068ba9ca8ba2e549e1131649dd6e559397c4b3f;hb=0a08ddf78c9cf4b6671ba64b049c37da64233f4f;hp=93dbdaeb7ecbdbc46f939b75f5bb31168d35eb4e;hpb=cef2f30ae2a25df41704b9b06fc13882d737cc27;p=bcachefs-tools-debian

diff --git a/libbcachefs/inode.h b/libbcachefs/inode.h
index 93dbdae..5068ba9 100644
--- a/libbcachefs/inode.h
+++ b/libbcachefs/inode.h
@@ -1,113 +1,208 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHEFS_INODE_H
 #define _BCACHEFS_INODE_H
 
+#include "bkey.h"
 #include "opts.h"
 
-#include <linux/math64.h>
+enum bkey_invalid_flags;
+extern const char * const bch2_inode_opts[];
 
-const char *bch2_inode_invalid(const struct bch_fs *, struct bkey_s_c);
-int bch2_inode_to_text(struct bch_fs *, char *, size_t, struct bkey_s_c);
+int bch2_inode_invalid(struct bch_fs *, struct bkey_s_c,
+		       enum bkey_invalid_flags, struct printbuf *);
+int bch2_inode_v2_invalid(struct bch_fs *, struct bkey_s_c,
+			  enum bkey_invalid_flags, struct printbuf *);
+int bch2_inode_v3_invalid(struct bch_fs *, struct bkey_s_c,
+			  enum bkey_invalid_flags, struct printbuf *);
+void bch2_inode_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
 
-#define bch2_bkey_inode_ops (struct bkey_ops) {		\
+int bch2_trans_mark_inode(struct btree_trans *, enum btree_id, unsigned,
+			  struct bkey_s_c, struct bkey_i *, unsigned);
+int bch2_mark_inode(struct btree_trans *, enum btree_id, unsigned,
+		    struct bkey_s_c, struct bkey_s_c, unsigned);
+
+#define bch2_bkey_ops_inode ((struct bkey_ops) {	\
 	.key_invalid	= bch2_inode_invalid,		\
 	.val_to_text	= bch2_inode_to_text,		\
+	.trans_trigger	= bch2_trans_mark_inode,	\
+	.atomic_trigger	= bch2_mark_inode,		\
+	.min_val_size	= 16,				\
+})
+
+#define bch2_bkey_ops_inode_v2 ((struct bkey_ops) {	\
+	.key_invalid	= bch2_inode_v2_invalid,	\
+	.val_to_text	= bch2_inode_to_text,		\
+	.trans_trigger	= bch2_trans_mark_inode,	\
+	.atomic_trigger	= bch2_mark_inode,		\
+	.min_val_size	= 32,				\
+})
+
+#define bch2_bkey_ops_inode_v3 ((struct bkey_ops) {	\
+	.key_invalid	= bch2_inode_v3_invalid,	\
+	.val_to_text	= bch2_inode_to_text,		\
+	.trans_trigger	= bch2_trans_mark_inode,	\
+	.atomic_trigger	= bch2_mark_inode,		\
+	.min_val_size	= 48,				\
+})
+
+static inline bool bkey_is_inode(const struct bkey *k)
+{
+	return  k->type == KEY_TYPE_inode ||
+		k->type == KEY_TYPE_inode_v2 ||
+		k->type == KEY_TYPE_inode_v3;
 }
 
+int bch2_inode_generation_invalid(struct bch_fs *, struct bkey_s_c,
+				  enum bkey_invalid_flags, struct printbuf *);
+void bch2_inode_generation_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
+
+#define bch2_bkey_ops_inode_generation ((struct bkey_ops) {	\
+	.key_invalid	= bch2_inode_generation_invalid,	\
+	.val_to_text	= bch2_inode_generation_to_text,	\
+	.min_val_size	= 8,					\
+})
+
+#if 0
+typedef struct {
+	u64			lo;
+	u32			hi;
+} __packed __aligned(4) u96;
+#endif
+typedef u64 u96;
+
 struct bch_inode_unpacked {
 	u64			bi_inum;
+	u64			bi_journal_seq;
 	__le64			bi_hash_seed;
+	u64			bi_size;
+	u64			bi_sectors;
+	u64			bi_version;
 	u32			bi_flags;
 	u16			bi_mode;
 
-#define BCH_INODE_FIELD(_name, _bits)	u##_bits _name;
-	BCH_INODE_FIELDS()
-#undef  BCH_INODE_FIELD
+#define x(_name, _bits)	u##_bits _name;
+	BCH_INODE_FIELDS_v3()
+#undef  x
 };
 
 struct bkey_inode_buf {
-	struct bkey_i_inode	inode;
+	struct bkey_i_inode_v3	inode;
 
-#define BCH_INODE_FIELD(_name, _bits)		+ 8 + _bits / 8
-	u8		_pad[0 + BCH_INODE_FIELDS()];
-#undef  BCH_INODE_FIELD
-} __attribute__((packed, aligned(8)));
+#define x(_name, _bits)		+ 8 + _bits / 8
+	u8		_pad[0 + BCH_INODE_FIELDS_v3()];
+#undef  x
+} __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 *);
+int bch2_inode_unpack(struct bkey_s_c, struct bch_inode_unpacked *);
+struct bkey_i *bch2_inode_to_v3(struct btree_trans *, struct bkey_i *);
 
-void bch2_inode_init(struct bch_fs *, struct bch_inode_unpacked *,
-		     uid_t, gid_t, umode_t, dev_t,
-		     struct bch_inode_unpacked *);
+void bch2_inode_unpacked_to_text(struct printbuf *, 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_rm(struct bch_fs *, u64);
+int bch2_inode_peek(struct btree_trans *, struct btree_iter *,
+		    struct bch_inode_unpacked *, subvol_inum, unsigned);
+int bch2_inode_write(struct btree_trans *, struct btree_iter *,
+		     struct bch_inode_unpacked *);
 
-int bch2_inode_find_by_inum(struct bch_fs *, u64,
+void bch2_inode_init_early(struct bch_fs *,
 			   struct bch_inode_unpacked *);
+void bch2_inode_init_late(struct bch_inode_unpacked *, u64,
+			  uid_t, gid_t, umode_t, dev_t,
+			  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 *);
 
-static inline struct timespec64 bch2_time_to_timespec(struct bch_fs *c, u64 time)
-{
-	return ns_to_timespec64(time * c->sb.time_precision + c->sb.time_base_lo);
-}
+int bch2_inode_create(struct btree_trans *, struct btree_iter *,
+		      struct bch_inode_unpacked *, u32, u64);
 
-static inline u64 timespec_to_bch2_time(struct bch_fs *c, struct timespec64 ts)
-{
-	s64 ns = timespec64_to_ns(&ts) - c->sb.time_base_lo;
+int bch2_inode_rm(struct bch_fs *, subvol_inum);
 
-	if (c->sb.time_precision == 1)
-		return ns;
+int bch2_inode_find_by_inum_nowarn_trans(struct btree_trans *,
+				  subvol_inum,
+				  struct bch_inode_unpacked *);
+int bch2_inode_find_by_inum_trans(struct btree_trans *, subvol_inum,
+				  struct bch_inode_unpacked *);
+int bch2_inode_find_by_inum(struct bch_fs *, subvol_inum,
+			    struct bch_inode_unpacked *);
 
-	return div_s64(ns, c->sb.time_precision);
-}
+#define inode_opt_get(_c, _inode, _name)			\
+	((_inode)->bi_##_name ? (_inode)->bi_##_name - 1 : (_c)->opts._name)
 
-static inline struct bch_io_opts bch2_inode_opts_get(struct bch_inode_unpacked *inode)
+static inline void bch2_inode_opt_set(struct bch_inode_unpacked *inode,
+				      enum inode_opt_id id, u64 v)
 {
-	struct bch_io_opts ret = { 0 };
-
-#define BCH_INODE_OPT(_name, _bits)					\
-	if (inode->bi_##_name)						\
-		opt_set(ret, _name, inode->bi_##_name - 1);
+	switch (id) {
+#define x(_name, ...)							\
+	case Inode_opt_##_name:						\
+		inode->bi_##_name = v;					\
+		break;
 	BCH_INODE_OPTS()
-#undef BCH_INODE_OPT
-	return ret;
+#undef x
+	default:
+		BUG();
+	}
 }
 
-static inline void __bch2_inode_opt_set(struct bch_inode_unpacked *inode,
-					enum bch_opt_id id, u64 v)
+static inline u64 bch2_inode_opt_get(struct bch_inode_unpacked *inode,
+				     enum inode_opt_id id)
 {
 	switch (id) {
-#define BCH_INODE_OPT(_name, ...)					\
-	case Opt_##_name:						\
-		inode->bi_##_name = v;					\
-		break;
+#define x(_name, ...)							\
+	case Inode_opt_##_name:						\
+		return inode->bi_##_name;
 	BCH_INODE_OPTS()
-#undef BCH_INODE_OPT
+#undef x
 	default:
 		BUG();
 	}
 }
 
-static inline void bch2_inode_opt_set(struct bch_inode_unpacked *inode,
-				      enum bch_opt_id id, u64 v)
+static inline u8 mode_to_type(umode_t mode)
 {
-	return __bch2_inode_opt_set(inode, id, v + 1);
+	return (mode >> 12) & 15;
 }
 
-static inline void bch2_inode_opt_clear(struct bch_inode_unpacked *inode,
-					enum bch_opt_id id)
+static inline u8 inode_d_type(struct bch_inode_unpacked *inode)
 {
-	return __bch2_inode_opt_set(inode, id, 0);
+	return inode->bi_subvol ? DT_SUBVOL : mode_to_type(inode->bi_mode);
 }
 
-#ifdef CONFIG_BCACHEFS_DEBUG
-void bch2_inode_pack_test(void);
-#else
-static inline void bch2_inode_pack_test(void) {}
-#endif
+/* i_nlink: */
+
+static inline unsigned nlink_bias(umode_t mode)
+{
+	return S_ISDIR(mode) ? 2 : 1;
+}
+
+static inline unsigned bch2_inode_nlink_get(struct bch_inode_unpacked *bi)
+{
+	return bi->bi_flags & BCH_INODE_unlinked
+		  ? 0
+		  : bi->bi_nlink + nlink_bias(bi->bi_mode);
+}
+
+static inline void bch2_inode_nlink_set(struct bch_inode_unpacked *bi,
+					unsigned nlink)
+{
+	if (nlink) {
+		bi->bi_nlink = nlink - nlink_bias(bi->bi_mode);
+		bi->bi_flags &= ~BCH_INODE_unlinked;
+	} else {
+		bi->bi_nlink = 0;
+		bi->bi_flags |= BCH_INODE_unlinked;
+	}
+}
+
+int bch2_inode_nlink_inc(struct bch_inode_unpacked *);
+void bch2_inode_nlink_dec(struct btree_trans *, struct bch_inode_unpacked *);
+
+struct bch_opts bch2_inode_opts_to_opts(struct bch_inode_unpacked *);
+void bch2_inode_opts_get(struct bch_io_opts *, struct bch_fs *,
+			 struct bch_inode_unpacked *);
+int bch2_inum_opts_get(struct btree_trans*, subvol_inum, struct bch_io_opts *);
+
+int bch2_inode_rm_snapshot(struct btree_trans *, u64, u32);
+int bch2_delete_dead_inodes(struct bch_fs *);
 
 #endif /* _BCACHEFS_INODE_H */