disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/include/uapi/linux/btrfs_tree.h
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@@ -4,6 +4,11 @@
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 #include <linux/btrfs.h>
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 #include <linux/types.h>
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+#ifdef __KERNEL__
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+#include <linux/stddef.h>
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+#else
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+#include <stddef.h>
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+#endif
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 /*
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  * This header contains the structure definitions and constants used
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@@ -300,13 +305,20 @@
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 #define BTRFS_CSUM_SIZE 32
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 /* csum types */
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-#define BTRFS_CSUM_TYPE_CRC32	0
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+enum btrfs_csum_type {
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+	BTRFS_CSUM_TYPE_CRC32	= 0,
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+	BTRFS_CSUM_TYPE_XXHASH	= 1,
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+	BTRFS_CSUM_TYPE_SHA256	= 2,
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+	BTRFS_CSUM_TYPE_BLAKE2	= 3,
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+};
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 /*
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  * flags definitions for directory entry item type
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  *
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  * Used by:
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  * struct btrfs_dir_item.type
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+ *
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+ * Values 0..7 must match common file type values in fs_types.h.
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  */
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 #define BTRFS_FT_UNKNOWN	0
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 #define BTRFS_FT_REG_FILE	1
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@@ -458,6 +470,7 @@
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 #define BTRFS_SUPER_FLAG_METADUMP	(1ULL << 33)
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 #define BTRFS_SUPER_FLAG_METADUMP_V2	(1ULL << 34)
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 #define BTRFS_SUPER_FLAG_CHANGING_FSID	(1ULL << 35)
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+#define BTRFS_SUPER_FLAG_CHANGING_FSID_V2 (1ULL << 36)
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 /*
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@@ -510,15 +523,6 @@
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 	__u8 type;
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 	__le64 offset;
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 } __attribute__ ((__packed__));
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-
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-/* old style backrefs item */
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-struct btrfs_extent_ref_v0 {
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-	__le64 root;
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-	__le64 generation;
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-	__le64 objectid;
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-	__le32 count;
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-} __attribute__ ((__packed__));
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-
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 /* dev extents record free space on individual devices.  The owner
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  * field points back to the chunk allocation mapping tree that allocated
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@@ -646,6 +650,15 @@
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 } __attribute__ ((__packed__));
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 /*
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+ * Btrfs root item used to be smaller than current size.  The old format ends
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+ * at where member generation_v2 is.
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+ */
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+static inline __u32 btrfs_legacy_root_item_size(void)
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+{
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+	return offsetof(struct btrfs_root_item, generation_v2);
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+}
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+
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+/*
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  * this is used for both forward and backward root refs
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  */
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 struct btrfs_root_ref {
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@@ -732,10 +745,12 @@
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 	__le64 unused[4];
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 } __attribute__ ((__packed__));
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-#define BTRFS_FILE_EXTENT_INLINE 0
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-#define BTRFS_FILE_EXTENT_REG 1
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-#define BTRFS_FILE_EXTENT_PREALLOC 2
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-#define BTRFS_FILE_EXTENT_TYPES	2
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+enum {
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+	BTRFS_FILE_EXTENT_INLINE   = 0,
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+	BTRFS_FILE_EXTENT_REG      = 1,
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+	BTRFS_FILE_EXTENT_PREALLOC = 2,
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+	BTRFS_NR_FILE_EXTENT_TYPES = 3,
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+};
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 struct btrfs_file_extent_item {
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 	/*
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@@ -803,11 +818,6 @@
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 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_ALWAYS	0
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 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_AVOID	1
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-#define BTRFS_DEV_REPLACE_ITEM_STATE_NEVER_STARTED	0
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-#define BTRFS_DEV_REPLACE_ITEM_STATE_STARTED		1
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-#define BTRFS_DEV_REPLACE_ITEM_STATE_SUSPENDED		2
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-#define BTRFS_DEV_REPLACE_ITEM_STATE_FINISHED		3
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-#define BTRFS_DEV_REPLACE_ITEM_STATE_CANCELED		4
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 struct btrfs_dev_replace_item {
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 	/*
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@@ -836,6 +846,8 @@
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 #define BTRFS_BLOCK_GROUP_RAID10	(1ULL << 6)
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 #define BTRFS_BLOCK_GROUP_RAID5         (1ULL << 7)
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 #define BTRFS_BLOCK_GROUP_RAID6         (1ULL << 8)
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+#define BTRFS_BLOCK_GROUP_RAID1C3       (1ULL << 9)
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+#define BTRFS_BLOCK_GROUP_RAID1C4       (1ULL << 10)
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 #define BTRFS_BLOCK_GROUP_RESERVED	(BTRFS_AVAIL_ALLOC_BIT_SINGLE | \
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 					 BTRFS_SPACE_INFO_GLOBAL_RSV)
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@@ -847,6 +859,8 @@
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 	BTRFS_RAID_SINGLE,
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 	BTRFS_RAID_RAID5,
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 	BTRFS_RAID_RAID6,
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+	BTRFS_RAID_RAID1C3,
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+	BTRFS_RAID_RAID1C4,
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 	BTRFS_NR_RAID_TYPES
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 };
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@@ -856,12 +870,18 @@
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 #define BTRFS_BLOCK_GROUP_PROFILE_MASK	(BTRFS_BLOCK_GROUP_RAID0 |   \
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 					 BTRFS_BLOCK_GROUP_RAID1 |   \
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+					 BTRFS_BLOCK_GROUP_RAID1C3 | \
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+					 BTRFS_BLOCK_GROUP_RAID1C4 | \
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 					 BTRFS_BLOCK_GROUP_RAID5 |   \
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 					 BTRFS_BLOCK_GROUP_RAID6 |   \
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 					 BTRFS_BLOCK_GROUP_DUP |     \
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 					 BTRFS_BLOCK_GROUP_RAID10)
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 #define BTRFS_BLOCK_GROUP_RAID56_MASK	(BTRFS_BLOCK_GROUP_RAID5 |   \
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 					 BTRFS_BLOCK_GROUP_RAID6)
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+
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+#define BTRFS_BLOCK_GROUP_RAID1_MASK	(BTRFS_BLOCK_GROUP_RAID1 |   \
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+					 BTRFS_BLOCK_GROUP_RAID1C3 | \
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+					 BTRFS_BLOCK_GROUP_RAID1C4)
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 /*
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  * We need a bit for restriper to be able to tell when chunks of type
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@@ -907,9 +927,9 @@
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 #define BTRFS_FREE_SPACE_USING_BITMAPS (1ULL << 0)
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 #define BTRFS_QGROUP_LEVEL_SHIFT		48
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-static inline __u64 btrfs_qgroup_level(__u64 qgroupid)
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+static inline __u16 btrfs_qgroup_level(__u64 qgroupid)
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 {
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-	return qgroupid >> BTRFS_QGROUP_LEVEL_SHIFT;
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+	return (__u16)(qgroupid >> BTRFS_QGROUP_LEVEL_SHIFT);
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 }
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 /*