1056 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2 3#ifndef BTRFS_ACCESSORS_H4#define BTRFS_ACCESSORS_H5 6#include <linux/unaligned.h>7#include <linux/stddef.h>8#include <linux/types.h>9#include <linux/align.h>10#include <linux/build_bug.h>11#include <linux/compiler.h>12#include <linux/string.h>13#include <linux/mm.h>14#include <uapi/linux/btrfs_tree.h>15 16struct extent_buffer;17 18struct btrfs_map_token {19 struct extent_buffer *eb;20 char *kaddr;21 unsigned long offset;22};23 24void btrfs_init_map_token(struct btrfs_map_token *token, struct extent_buffer *eb);25 26/*27 * Some macros to generate set/get functions for the struct fields. This28 * assumes there is a lefoo_to_cpu for every type, so lets make a simple one29 * for u8:30 */31#define le8_to_cpu(v) (v)32#define cpu_to_le8(v) (v)33#define __le8 u834 35static inline u8 get_unaligned_le8(const void *p)36{37 return *(const u8 *)p;38}39 40static inline void put_unaligned_le8(u8 val, void *p)41{42 *(u8 *)p = val;43}44 45#define read_eb_member(eb, ptr, type, member, result) (\46 read_extent_buffer(eb, (char *)(result), \47 ((unsigned long)(ptr)) + \48 offsetof(type, member), \49 sizeof_field(type, member)))50 51#define write_eb_member(eb, ptr, type, member, source) ( \52 write_extent_buffer(eb, (const char *)(source), \53 ((unsigned long)(ptr)) + \54 offsetof(type, member), \55 sizeof_field(type, member)))56 57#define DECLARE_BTRFS_SETGET_BITS(bits) \58u##bits btrfs_get_token_##bits(struct btrfs_map_token *token, \59 const void *ptr, unsigned long off); \60void btrfs_set_token_##bits(struct btrfs_map_token *token, \61 const void *ptr, unsigned long off, \62 u##bits val); \63u##bits btrfs_get_##bits(const struct extent_buffer *eb, \64 const void *ptr, unsigned long off); \65void btrfs_set_##bits(const struct extent_buffer *eb, void *ptr, \66 unsigned long off, u##bits val);67 68DECLARE_BTRFS_SETGET_BITS(8)69DECLARE_BTRFS_SETGET_BITS(16)70DECLARE_BTRFS_SETGET_BITS(32)71DECLARE_BTRFS_SETGET_BITS(64)72 73#define BTRFS_SETGET_FUNCS(name, type, member, bits) \74static inline u##bits btrfs_##name(const struct extent_buffer *eb, \75 const type *s) \76{ \77 static_assert(sizeof(u##bits) == sizeof_field(type, member)); \78 return btrfs_get_##bits(eb, s, offsetof(type, member)); \79} \80static inline void btrfs_set_##name(const struct extent_buffer *eb, type *s, \81 u##bits val) \82{ \83 static_assert(sizeof(u##bits) == sizeof_field(type, member)); \84 btrfs_set_##bits(eb, s, offsetof(type, member), val); \85} \86static inline u##bits btrfs_token_##name(struct btrfs_map_token *token, \87 const type *s) \88{ \89 static_assert(sizeof(u##bits) == sizeof_field(type, member)); \90 return btrfs_get_token_##bits(token, s, offsetof(type, member));\91} \92static inline void btrfs_set_token_##name(struct btrfs_map_token *token,\93 type *s, u##bits val) \94{ \95 static_assert(sizeof(u##bits) == sizeof_field(type, member)); \96 btrfs_set_token_##bits(token, s, offsetof(type, member), val); \97}98 99#define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits) \100static inline u##bits btrfs_##name(const struct extent_buffer *eb) \101{ \102 const type *p = folio_address(eb->folios[0]) + \103 offset_in_page(eb->start); \104 return get_unaligned_le##bits(&p->member); \105} \106static inline void btrfs_set_##name(const struct extent_buffer *eb, \107 u##bits val) \108{ \109 type *p = folio_address(eb->folios[0]) + offset_in_page(eb->start); \110 put_unaligned_le##bits(val, &p->member); \111}112 113#define BTRFS_SETGET_STACK_FUNCS(name, type, member, bits) \114static inline u##bits btrfs_##name(const type *s) \115{ \116 return get_unaligned_le##bits(&s->member); \117} \118static inline void btrfs_set_##name(type *s, u##bits val) \119{ \120 put_unaligned_le##bits(val, &s->member); \121}122 123static inline u64 btrfs_device_total_bytes(const struct extent_buffer *eb,124 struct btrfs_dev_item *s)125{126 static_assert(sizeof(u64) == sizeof_field(struct btrfs_dev_item, total_bytes));127 return btrfs_get_64(eb, s, offsetof(struct btrfs_dev_item, total_bytes));128}129static inline void btrfs_set_device_total_bytes(const struct extent_buffer *eb,130 struct btrfs_dev_item *s,131 u64 val)132{133 static_assert(sizeof(u64) == sizeof_field(struct btrfs_dev_item, total_bytes));134 WARN_ON(!IS_ALIGNED(val, eb->fs_info->sectorsize));135 btrfs_set_64(eb, s, offsetof(struct btrfs_dev_item, total_bytes), val);136}137 138BTRFS_SETGET_FUNCS(device_type, struct btrfs_dev_item, type, 64);139BTRFS_SETGET_FUNCS(device_bytes_used, struct btrfs_dev_item, bytes_used, 64);140BTRFS_SETGET_FUNCS(device_io_align, struct btrfs_dev_item, io_align, 32);141BTRFS_SETGET_FUNCS(device_io_width, struct btrfs_dev_item, io_width, 32);142BTRFS_SETGET_FUNCS(device_start_offset, struct btrfs_dev_item, start_offset, 64);143BTRFS_SETGET_FUNCS(device_sector_size, struct btrfs_dev_item, sector_size, 32);144BTRFS_SETGET_FUNCS(device_id, struct btrfs_dev_item, devid, 64);145BTRFS_SETGET_FUNCS(device_group, struct btrfs_dev_item, dev_group, 32);146BTRFS_SETGET_FUNCS(device_seek_speed, struct btrfs_dev_item, seek_speed, 8);147BTRFS_SETGET_FUNCS(device_bandwidth, struct btrfs_dev_item, bandwidth, 8);148BTRFS_SETGET_FUNCS(device_generation, struct btrfs_dev_item, generation, 64);149 150BTRFS_SETGET_STACK_FUNCS(stack_device_type, struct btrfs_dev_item, type, 64);151BTRFS_SETGET_STACK_FUNCS(stack_device_total_bytes, struct btrfs_dev_item,152 total_bytes, 64);153BTRFS_SETGET_STACK_FUNCS(stack_device_bytes_used, struct btrfs_dev_item,154 bytes_used, 64);155BTRFS_SETGET_STACK_FUNCS(stack_device_io_align, struct btrfs_dev_item,156 io_align, 32);157BTRFS_SETGET_STACK_FUNCS(stack_device_io_width, struct btrfs_dev_item,158 io_width, 32);159BTRFS_SETGET_STACK_FUNCS(stack_device_sector_size, struct btrfs_dev_item,160 sector_size, 32);161BTRFS_SETGET_STACK_FUNCS(stack_device_id, struct btrfs_dev_item, devid, 64);162BTRFS_SETGET_STACK_FUNCS(stack_device_group, struct btrfs_dev_item, dev_group, 32);163BTRFS_SETGET_STACK_FUNCS(stack_device_seek_speed, struct btrfs_dev_item,164 seek_speed, 8);165BTRFS_SETGET_STACK_FUNCS(stack_device_bandwidth, struct btrfs_dev_item,166 bandwidth, 8);167BTRFS_SETGET_STACK_FUNCS(stack_device_generation, struct btrfs_dev_item,168 generation, 64);169 170static inline unsigned long btrfs_device_uuid(struct btrfs_dev_item *d)171{172 return (unsigned long)d + offsetof(struct btrfs_dev_item, uuid);173}174 175static inline unsigned long btrfs_device_fsid(struct btrfs_dev_item *d)176{177 return (unsigned long)d + offsetof(struct btrfs_dev_item, fsid);178}179 180BTRFS_SETGET_FUNCS(chunk_length, struct btrfs_chunk, length, 64);181BTRFS_SETGET_FUNCS(chunk_owner, struct btrfs_chunk, owner, 64);182BTRFS_SETGET_FUNCS(chunk_stripe_len, struct btrfs_chunk, stripe_len, 64);183BTRFS_SETGET_FUNCS(chunk_io_align, struct btrfs_chunk, io_align, 32);184BTRFS_SETGET_FUNCS(chunk_io_width, struct btrfs_chunk, io_width, 32);185BTRFS_SETGET_FUNCS(chunk_sector_size, struct btrfs_chunk, sector_size, 32);186BTRFS_SETGET_FUNCS(chunk_type, struct btrfs_chunk, type, 64);187BTRFS_SETGET_FUNCS(chunk_num_stripes, struct btrfs_chunk, num_stripes, 16);188BTRFS_SETGET_FUNCS(chunk_sub_stripes, struct btrfs_chunk, sub_stripes, 16);189BTRFS_SETGET_FUNCS(stripe_devid, struct btrfs_stripe, devid, 64);190BTRFS_SETGET_FUNCS(stripe_offset, struct btrfs_stripe, offset, 64);191 192static inline char *btrfs_stripe_dev_uuid(struct btrfs_stripe *s)193{194 return (char *)s + offsetof(struct btrfs_stripe, dev_uuid);195}196 197BTRFS_SETGET_STACK_FUNCS(stack_chunk_length, struct btrfs_chunk, length, 64);198BTRFS_SETGET_STACK_FUNCS(stack_chunk_owner, struct btrfs_chunk, owner, 64);199BTRFS_SETGET_STACK_FUNCS(stack_chunk_stripe_len, struct btrfs_chunk,200 stripe_len, 64);201BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_align, struct btrfs_chunk, io_align, 32);202BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_width, struct btrfs_chunk, io_width, 32);203BTRFS_SETGET_STACK_FUNCS(stack_chunk_sector_size, struct btrfs_chunk,204 sector_size, 32);205BTRFS_SETGET_STACK_FUNCS(stack_chunk_type, struct btrfs_chunk, type, 64);206BTRFS_SETGET_STACK_FUNCS(stack_chunk_num_stripes, struct btrfs_chunk,207 num_stripes, 16);208BTRFS_SETGET_STACK_FUNCS(stack_chunk_sub_stripes, struct btrfs_chunk,209 sub_stripes, 16);210BTRFS_SETGET_STACK_FUNCS(stack_stripe_devid, struct btrfs_stripe, devid, 64);211BTRFS_SETGET_STACK_FUNCS(stack_stripe_offset, struct btrfs_stripe, offset, 64);212 213static inline struct btrfs_stripe *btrfs_stripe_nr(struct btrfs_chunk *c, int nr)214{215 unsigned long offset = (unsigned long)c;216 217 offset += offsetof(struct btrfs_chunk, stripe);218 offset += nr * sizeof(struct btrfs_stripe);219 return (struct btrfs_stripe *)offset;220}221 222static inline char *btrfs_stripe_dev_uuid_nr(struct btrfs_chunk *c, int nr)223{224 return btrfs_stripe_dev_uuid(btrfs_stripe_nr(c, nr));225}226 227static inline u64 btrfs_stripe_offset_nr(const struct extent_buffer *eb,228 struct btrfs_chunk *c, int nr)229{230 return btrfs_stripe_offset(eb, btrfs_stripe_nr(c, nr));231}232 233static inline void btrfs_set_stripe_offset_nr(struct extent_buffer *eb,234 struct btrfs_chunk *c, int nr,235 u64 val)236{237 btrfs_set_stripe_offset(eb, btrfs_stripe_nr(c, nr), val);238}239 240static inline u64 btrfs_stripe_devid_nr(const struct extent_buffer *eb,241 struct btrfs_chunk *c, int nr)242{243 return btrfs_stripe_devid(eb, btrfs_stripe_nr(c, nr));244}245 246static inline void btrfs_set_stripe_devid_nr(struct extent_buffer *eb,247 struct btrfs_chunk *c, int nr,248 u64 val)249{250 btrfs_set_stripe_devid(eb, btrfs_stripe_nr(c, nr), val);251}252 253/* struct btrfs_block_group_item */254BTRFS_SETGET_STACK_FUNCS(stack_block_group_used, struct btrfs_block_group_item,255 used, 64);256BTRFS_SETGET_FUNCS(block_group_used, struct btrfs_block_group_item, used, 64);257BTRFS_SETGET_STACK_FUNCS(stack_block_group_chunk_objectid,258 struct btrfs_block_group_item, chunk_objectid, 64);259 260BTRFS_SETGET_FUNCS(block_group_chunk_objectid,261 struct btrfs_block_group_item, chunk_objectid, 64);262BTRFS_SETGET_FUNCS(block_group_flags, struct btrfs_block_group_item, flags, 64);263BTRFS_SETGET_STACK_FUNCS(stack_block_group_flags,264 struct btrfs_block_group_item, flags, 64);265 266/* struct btrfs_free_space_info */267BTRFS_SETGET_FUNCS(free_space_extent_count, struct btrfs_free_space_info,268 extent_count, 32);269BTRFS_SETGET_FUNCS(free_space_flags, struct btrfs_free_space_info, flags, 32);270 271/* struct btrfs_inode_ref */272BTRFS_SETGET_FUNCS(inode_ref_name_len, struct btrfs_inode_ref, name_len, 16);273BTRFS_SETGET_FUNCS(inode_ref_index, struct btrfs_inode_ref, index, 64);274BTRFS_SETGET_STACK_FUNCS(stack_inode_ref_name_len, struct btrfs_inode_ref, name_len, 16);275BTRFS_SETGET_STACK_FUNCS(stack_inode_ref_index, struct btrfs_inode_ref, index, 64);276 277/* struct btrfs_inode_extref */278BTRFS_SETGET_FUNCS(inode_extref_parent, struct btrfs_inode_extref,279 parent_objectid, 64);280BTRFS_SETGET_FUNCS(inode_extref_name_len, struct btrfs_inode_extref,281 name_len, 16);282BTRFS_SETGET_FUNCS(inode_extref_index, struct btrfs_inode_extref, index, 64);283 284/* struct btrfs_inode_item */285BTRFS_SETGET_FUNCS(inode_generation, struct btrfs_inode_item, generation, 64);286BTRFS_SETGET_FUNCS(inode_sequence, struct btrfs_inode_item, sequence, 64);287BTRFS_SETGET_FUNCS(inode_transid, struct btrfs_inode_item, transid, 64);288BTRFS_SETGET_FUNCS(inode_size, struct btrfs_inode_item, size, 64);289BTRFS_SETGET_FUNCS(inode_nbytes, struct btrfs_inode_item, nbytes, 64);290BTRFS_SETGET_FUNCS(inode_block_group, struct btrfs_inode_item, block_group, 64);291BTRFS_SETGET_FUNCS(inode_nlink, struct btrfs_inode_item, nlink, 32);292BTRFS_SETGET_FUNCS(inode_uid, struct btrfs_inode_item, uid, 32);293BTRFS_SETGET_FUNCS(inode_gid, struct btrfs_inode_item, gid, 32);294BTRFS_SETGET_FUNCS(inode_mode, struct btrfs_inode_item, mode, 32);295BTRFS_SETGET_FUNCS(inode_rdev, struct btrfs_inode_item, rdev, 64);296BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64);297BTRFS_SETGET_STACK_FUNCS(stack_inode_generation, struct btrfs_inode_item,298 generation, 64);299BTRFS_SETGET_STACK_FUNCS(stack_inode_sequence, struct btrfs_inode_item,300 sequence, 64);301BTRFS_SETGET_STACK_FUNCS(stack_inode_transid, struct btrfs_inode_item,302 transid, 64);303BTRFS_SETGET_STACK_FUNCS(stack_inode_size, struct btrfs_inode_item, size, 64);304BTRFS_SETGET_STACK_FUNCS(stack_inode_nbytes, struct btrfs_inode_item, nbytes, 64);305BTRFS_SETGET_STACK_FUNCS(stack_inode_block_group, struct btrfs_inode_item,306 block_group, 64);307BTRFS_SETGET_STACK_FUNCS(stack_inode_nlink, struct btrfs_inode_item, nlink, 32);308BTRFS_SETGET_STACK_FUNCS(stack_inode_uid, struct btrfs_inode_item, uid, 32);309BTRFS_SETGET_STACK_FUNCS(stack_inode_gid, struct btrfs_inode_item, gid, 32);310BTRFS_SETGET_STACK_FUNCS(stack_inode_mode, struct btrfs_inode_item, mode, 32);311BTRFS_SETGET_STACK_FUNCS(stack_inode_rdev, struct btrfs_inode_item, rdev, 64);312BTRFS_SETGET_STACK_FUNCS(stack_inode_flags, struct btrfs_inode_item, flags, 64);313BTRFS_SETGET_FUNCS(timespec_sec, struct btrfs_timespec, sec, 64);314BTRFS_SETGET_FUNCS(timespec_nsec, struct btrfs_timespec, nsec, 32);315BTRFS_SETGET_STACK_FUNCS(stack_timespec_sec, struct btrfs_timespec, sec, 64);316BTRFS_SETGET_STACK_FUNCS(stack_timespec_nsec, struct btrfs_timespec, nsec, 32);317 318BTRFS_SETGET_FUNCS(raid_stride_devid, struct btrfs_raid_stride, devid, 64);319BTRFS_SETGET_FUNCS(raid_stride_physical, struct btrfs_raid_stride, physical, 64);320BTRFS_SETGET_STACK_FUNCS(stack_raid_stride_devid, struct btrfs_raid_stride, devid, 64);321BTRFS_SETGET_STACK_FUNCS(stack_raid_stride_physical, struct btrfs_raid_stride, physical, 64);322 323/* struct btrfs_dev_extent */324BTRFS_SETGET_FUNCS(dev_extent_chunk_tree, struct btrfs_dev_extent, chunk_tree, 64);325BTRFS_SETGET_FUNCS(dev_extent_chunk_objectid, struct btrfs_dev_extent,326 chunk_objectid, 64);327BTRFS_SETGET_FUNCS(dev_extent_chunk_offset, struct btrfs_dev_extent,328 chunk_offset, 64);329BTRFS_SETGET_FUNCS(dev_extent_length, struct btrfs_dev_extent, length, 64);330BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_tree, struct btrfs_dev_extent,331 chunk_tree, 64);332BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_objectid, struct btrfs_dev_extent,333 chunk_objectid, 64);334BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_offset, struct btrfs_dev_extent,335 chunk_offset, 64);336BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_length, struct btrfs_dev_extent, length, 64);337 338BTRFS_SETGET_FUNCS(extent_refs, struct btrfs_extent_item, refs, 64);339BTRFS_SETGET_FUNCS(extent_generation, struct btrfs_extent_item, generation, 64);340BTRFS_SETGET_FUNCS(extent_flags, struct btrfs_extent_item, flags, 64);341 342BTRFS_SETGET_FUNCS(tree_block_level, struct btrfs_tree_block_info, level, 8);343 344static inline void btrfs_tree_block_key(const struct extent_buffer *eb,345 struct btrfs_tree_block_info *item,346 struct btrfs_disk_key *key)347{348 read_eb_member(eb, item, struct btrfs_tree_block_info, key, key);349}350 351static inline void btrfs_set_tree_block_key(const struct extent_buffer *eb,352 struct btrfs_tree_block_info *item,353 const struct btrfs_disk_key *key)354{355 write_eb_member(eb, item, struct btrfs_tree_block_info, key, key);356}357 358BTRFS_SETGET_FUNCS(extent_data_ref_root, struct btrfs_extent_data_ref, root, 64);359BTRFS_SETGET_FUNCS(extent_data_ref_objectid, struct btrfs_extent_data_ref,360 objectid, 64);361BTRFS_SETGET_FUNCS(extent_data_ref_offset, struct btrfs_extent_data_ref,362 offset, 64);363BTRFS_SETGET_FUNCS(extent_data_ref_count, struct btrfs_extent_data_ref, count, 32);364 365BTRFS_SETGET_FUNCS(shared_data_ref_count, struct btrfs_shared_data_ref, count, 32);366 367BTRFS_SETGET_FUNCS(extent_owner_ref_root_id, struct btrfs_extent_owner_ref,368 root_id, 64);369 370BTRFS_SETGET_FUNCS(extent_inline_ref_type, struct btrfs_extent_inline_ref,371 type, 8);372BTRFS_SETGET_FUNCS(extent_inline_ref_offset, struct btrfs_extent_inline_ref,373 offset, 64);374 375static inline u32 btrfs_extent_inline_ref_size(int type)376{377 if (type == BTRFS_TREE_BLOCK_REF_KEY ||378 type == BTRFS_SHARED_BLOCK_REF_KEY)379 return sizeof(struct btrfs_extent_inline_ref);380 if (type == BTRFS_SHARED_DATA_REF_KEY)381 return sizeof(struct btrfs_shared_data_ref) +382 sizeof(struct btrfs_extent_inline_ref);383 if (type == BTRFS_EXTENT_DATA_REF_KEY)384 return sizeof(struct btrfs_extent_data_ref) +385 offsetof(struct btrfs_extent_inline_ref, offset);386 if (type == BTRFS_EXTENT_OWNER_REF_KEY)387 return sizeof(struct btrfs_extent_inline_ref);388 return 0;389}390 391/* struct btrfs_node */392BTRFS_SETGET_FUNCS(key_blockptr, struct btrfs_key_ptr, blockptr, 64);393BTRFS_SETGET_FUNCS(key_generation, struct btrfs_key_ptr, generation, 64);394BTRFS_SETGET_STACK_FUNCS(stack_key_blockptr, struct btrfs_key_ptr, blockptr, 64);395BTRFS_SETGET_STACK_FUNCS(stack_key_generation, struct btrfs_key_ptr,396 generation, 64);397 398static inline u64 btrfs_node_blockptr(const struct extent_buffer *eb, int nr)399{400 unsigned long ptr;401 402 ptr = offsetof(struct btrfs_node, ptrs) +403 sizeof(struct btrfs_key_ptr) * nr;404 return btrfs_key_blockptr(eb, (struct btrfs_key_ptr *)ptr);405}406 407static inline void btrfs_set_node_blockptr(const struct extent_buffer *eb,408 int nr, u64 val)409{410 unsigned long ptr;411 412 ptr = offsetof(struct btrfs_node, ptrs) +413 sizeof(struct btrfs_key_ptr) * nr;414 btrfs_set_key_blockptr(eb, (struct btrfs_key_ptr *)ptr, val);415}416 417static inline u64 btrfs_node_ptr_generation(const struct extent_buffer *eb, int nr)418{419 unsigned long ptr;420 421 ptr = offsetof(struct btrfs_node, ptrs) +422 sizeof(struct btrfs_key_ptr) * nr;423 return btrfs_key_generation(eb, (struct btrfs_key_ptr *)ptr);424}425 426static inline void btrfs_set_node_ptr_generation(const struct extent_buffer *eb,427 int nr, u64 val)428{429 unsigned long ptr;430 431 ptr = offsetof(struct btrfs_node, ptrs) +432 sizeof(struct btrfs_key_ptr) * nr;433 btrfs_set_key_generation(eb, (struct btrfs_key_ptr *)ptr, val);434}435 436static inline unsigned long btrfs_node_key_ptr_offset(const struct extent_buffer *eb, int nr)437{438 return offsetof(struct btrfs_node, ptrs) +439 sizeof(struct btrfs_key_ptr) * nr;440}441 442void btrfs_node_key(const struct extent_buffer *eb,443 struct btrfs_disk_key *disk_key, int nr);444 445static inline void btrfs_set_node_key(const struct extent_buffer *eb,446 const struct btrfs_disk_key *disk_key, int nr)447{448 unsigned long ptr;449 450 ptr = btrfs_node_key_ptr_offset(eb, nr);451 write_eb_member(eb, (struct btrfs_key_ptr *)ptr,452 struct btrfs_key_ptr, key, disk_key);453}454 455/* struct btrfs_item */456BTRFS_SETGET_FUNCS(raw_item_offset, struct btrfs_item, offset, 32);457BTRFS_SETGET_FUNCS(raw_item_size, struct btrfs_item, size, 32);458BTRFS_SETGET_STACK_FUNCS(stack_item_offset, struct btrfs_item, offset, 32);459BTRFS_SETGET_STACK_FUNCS(stack_item_size, struct btrfs_item, size, 32);460 461static inline unsigned long btrfs_item_nr_offset(const struct extent_buffer *eb, int nr)462{463 return offsetof(struct btrfs_leaf, items) +464 sizeof(struct btrfs_item) * nr;465}466 467static inline struct btrfs_item *btrfs_item_nr(const struct extent_buffer *eb, int nr)468{469 return (struct btrfs_item *)btrfs_item_nr_offset(eb, nr);470}471 472#define BTRFS_ITEM_SETGET_FUNCS(member) \473static inline u32 btrfs_item_##member(const struct extent_buffer *eb, int slot) \474{ \475 return btrfs_raw_item_##member(eb, btrfs_item_nr(eb, slot)); \476} \477static inline void btrfs_set_item_##member(const struct extent_buffer *eb, \478 int slot, u32 val) \479{ \480 btrfs_set_raw_item_##member(eb, btrfs_item_nr(eb, slot), val); \481} \482static inline u32 btrfs_token_item_##member(struct btrfs_map_token *token, \483 int slot) \484{ \485 struct btrfs_item *item = btrfs_item_nr(token->eb, slot); \486 return btrfs_token_raw_item_##member(token, item); \487} \488static inline void btrfs_set_token_item_##member(struct btrfs_map_token *token, \489 int slot, u32 val) \490{ \491 struct btrfs_item *item = btrfs_item_nr(token->eb, slot); \492 btrfs_set_token_raw_item_##member(token, item, val); \493}494 495BTRFS_ITEM_SETGET_FUNCS(offset)496BTRFS_ITEM_SETGET_FUNCS(size);497 498static inline u32 btrfs_item_data_end(const struct extent_buffer *eb, int nr)499{500 return btrfs_item_offset(eb, nr) + btrfs_item_size(eb, nr);501}502 503static inline void btrfs_item_key(const struct extent_buffer *eb,504 struct btrfs_disk_key *disk_key, int nr)505{506 struct btrfs_item *item = btrfs_item_nr(eb, nr);507 508 read_eb_member(eb, item, struct btrfs_item, key, disk_key);509}510 511static inline void btrfs_set_item_key(struct extent_buffer *eb,512 const struct btrfs_disk_key *disk_key, int nr)513{514 struct btrfs_item *item = btrfs_item_nr(eb, nr);515 516 write_eb_member(eb, item, struct btrfs_item, key, disk_key);517}518 519BTRFS_SETGET_FUNCS(dir_log_end, struct btrfs_dir_log_item, end, 64);520 521/* struct btrfs_root_ref */522BTRFS_SETGET_FUNCS(root_ref_dirid, struct btrfs_root_ref, dirid, 64);523BTRFS_SETGET_FUNCS(root_ref_sequence, struct btrfs_root_ref, sequence, 64);524BTRFS_SETGET_FUNCS(root_ref_name_len, struct btrfs_root_ref, name_len, 16);525BTRFS_SETGET_STACK_FUNCS(stack_root_ref_dirid, struct btrfs_root_ref, dirid, 64);526BTRFS_SETGET_STACK_FUNCS(stack_root_ref_sequence, struct btrfs_root_ref, sequence, 64);527BTRFS_SETGET_STACK_FUNCS(stack_root_ref_name_len, struct btrfs_root_ref, name_len, 16);528 529/* struct btrfs_dir_item */530BTRFS_SETGET_FUNCS(dir_data_len, struct btrfs_dir_item, data_len, 16);531BTRFS_SETGET_FUNCS(dir_flags, struct btrfs_dir_item, type, 8);532BTRFS_SETGET_FUNCS(dir_name_len, struct btrfs_dir_item, name_len, 16);533BTRFS_SETGET_FUNCS(dir_transid, struct btrfs_dir_item, transid, 64);534BTRFS_SETGET_STACK_FUNCS(stack_dir_flags, struct btrfs_dir_item, type, 8);535BTRFS_SETGET_STACK_FUNCS(stack_dir_data_len, struct btrfs_dir_item, data_len, 16);536BTRFS_SETGET_STACK_FUNCS(stack_dir_name_len, struct btrfs_dir_item, name_len, 16);537BTRFS_SETGET_STACK_FUNCS(stack_dir_transid, struct btrfs_dir_item, transid, 64);538 539static inline u8 btrfs_dir_ftype(const struct extent_buffer *eb,540 const struct btrfs_dir_item *item)541{542 return btrfs_dir_flags_to_ftype(btrfs_dir_flags(eb, item));543}544 545static inline u8 btrfs_stack_dir_ftype(const struct btrfs_dir_item *item)546{547 return btrfs_dir_flags_to_ftype(btrfs_stack_dir_flags(item));548}549 550static inline void btrfs_dir_item_key(const struct extent_buffer *eb,551 const struct btrfs_dir_item *item,552 struct btrfs_disk_key *key)553{554 read_eb_member(eb, item, struct btrfs_dir_item, location, key);555}556 557static inline void btrfs_set_dir_item_key(struct extent_buffer *eb,558 struct btrfs_dir_item *item,559 const struct btrfs_disk_key *key)560{561 write_eb_member(eb, item, struct btrfs_dir_item, location, key);562}563 564BTRFS_SETGET_FUNCS(free_space_entries, struct btrfs_free_space_header,565 num_entries, 64);566BTRFS_SETGET_FUNCS(free_space_bitmaps, struct btrfs_free_space_header,567 num_bitmaps, 64);568BTRFS_SETGET_FUNCS(free_space_generation, struct btrfs_free_space_header,569 generation, 64);570 571static inline void btrfs_free_space_key(const struct extent_buffer *eb,572 const struct btrfs_free_space_header *h,573 struct btrfs_disk_key *key)574{575 read_eb_member(eb, h, struct btrfs_free_space_header, location, key);576}577 578static inline void btrfs_set_free_space_key(struct extent_buffer *eb,579 struct btrfs_free_space_header *h,580 const struct btrfs_disk_key *key)581{582 write_eb_member(eb, h, struct btrfs_free_space_header, location, key);583}584 585/* struct btrfs_disk_key */586BTRFS_SETGET_STACK_FUNCS(disk_key_objectid, struct btrfs_disk_key, objectid, 64);587BTRFS_SETGET_STACK_FUNCS(disk_key_offset, struct btrfs_disk_key, offset, 64);588BTRFS_SETGET_STACK_FUNCS(disk_key_type, struct btrfs_disk_key, type, 8);589 590#ifdef __LITTLE_ENDIAN591 592/*593 * Optimized helpers for little-endian architectures where CPU and on-disk594 * structures have the same endianness and we can skip conversions.595 */596 597static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu_key,598 const struct btrfs_disk_key *disk_key)599{600 memcpy(cpu_key, disk_key, sizeof(struct btrfs_key));601}602 603static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk_key,604 const struct btrfs_key *cpu_key)605{606 memcpy(disk_key, cpu_key, sizeof(struct btrfs_key));607}608 609static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,610 struct btrfs_key *cpu_key, int nr)611{612 struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;613 614 btrfs_node_key(eb, disk_key, nr);615}616 617static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,618 struct btrfs_key *cpu_key, int nr)619{620 struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;621 622 btrfs_item_key(eb, disk_key, nr);623}624 625static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,626 const struct btrfs_dir_item *item,627 struct btrfs_key *cpu_key)628{629 struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;630 631 btrfs_dir_item_key(eb, item, disk_key);632}633 634#else635 636static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu,637 const struct btrfs_disk_key *disk)638{639 cpu->offset = le64_to_cpu(disk->offset);640 cpu->type = disk->type;641 cpu->objectid = le64_to_cpu(disk->objectid);642}643 644static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk,645 const struct btrfs_key *cpu)646{647 disk->offset = cpu_to_le64(cpu->offset);648 disk->type = cpu->type;649 disk->objectid = cpu_to_le64(cpu->objectid);650}651 652static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,653 struct btrfs_key *key, int nr)654{655 struct btrfs_disk_key disk_key;656 657 btrfs_node_key(eb, &disk_key, nr);658 btrfs_disk_key_to_cpu(key, &disk_key);659}660 661static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,662 struct btrfs_key *key, int nr)663{664 struct btrfs_disk_key disk_key;665 666 btrfs_item_key(eb, &disk_key, nr);667 btrfs_disk_key_to_cpu(key, &disk_key);668}669 670static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,671 const struct btrfs_dir_item *item,672 struct btrfs_key *key)673{674 struct btrfs_disk_key disk_key;675 676 btrfs_dir_item_key(eb, item, &disk_key);677 btrfs_disk_key_to_cpu(key, &disk_key);678}679 680#endif681 682/* struct btrfs_header */683BTRFS_SETGET_HEADER_FUNCS(header_bytenr, struct btrfs_header, bytenr, 64);684BTRFS_SETGET_HEADER_FUNCS(header_generation, struct btrfs_header, generation, 64);685BTRFS_SETGET_HEADER_FUNCS(header_owner, struct btrfs_header, owner, 64);686BTRFS_SETGET_HEADER_FUNCS(header_nritems, struct btrfs_header, nritems, 32);687BTRFS_SETGET_HEADER_FUNCS(header_flags, struct btrfs_header, flags, 64);688BTRFS_SETGET_HEADER_FUNCS(header_level, struct btrfs_header, level, 8);689BTRFS_SETGET_STACK_FUNCS(stack_header_generation, struct btrfs_header,690 generation, 64);691BTRFS_SETGET_STACK_FUNCS(stack_header_owner, struct btrfs_header, owner, 64);692BTRFS_SETGET_STACK_FUNCS(stack_header_nritems, struct btrfs_header, nritems, 32);693BTRFS_SETGET_STACK_FUNCS(stack_header_bytenr, struct btrfs_header, bytenr, 64);694 695static inline int btrfs_header_flag(const struct extent_buffer *eb, u64 flag)696{697 return (btrfs_header_flags(eb) & flag) == flag;698}699 700static inline void btrfs_set_header_flag(struct extent_buffer *eb, u64 flag)701{702 u64 flags = btrfs_header_flags(eb);703 704 btrfs_set_header_flags(eb, flags | flag);705}706 707static inline void btrfs_clear_header_flag(struct extent_buffer *eb, u64 flag)708{709 u64 flags = btrfs_header_flags(eb);710 711 btrfs_set_header_flags(eb, flags & ~flag);712}713 714static inline int btrfs_header_backref_rev(const struct extent_buffer *eb)715{716 u64 flags = btrfs_header_flags(eb);717 718 return flags >> BTRFS_BACKREF_REV_SHIFT;719}720 721static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb, int rev)722{723 u64 flags = btrfs_header_flags(eb);724 725 flags &= ~BTRFS_BACKREF_REV_MASK;726 flags |= (u64)rev << BTRFS_BACKREF_REV_SHIFT;727 btrfs_set_header_flags(eb, flags);728}729 730static inline int btrfs_is_leaf(const struct extent_buffer *eb)731{732 return btrfs_header_level(eb) == 0;733}734 735/* struct btrfs_root_item */736BTRFS_SETGET_FUNCS(disk_root_generation, struct btrfs_root_item, generation, 64);737BTRFS_SETGET_FUNCS(disk_root_refs, struct btrfs_root_item, refs, 32);738BTRFS_SETGET_FUNCS(disk_root_bytenr, struct btrfs_root_item, bytenr, 64);739BTRFS_SETGET_FUNCS(disk_root_level, struct btrfs_root_item, level, 8);740 741BTRFS_SETGET_STACK_FUNCS(root_generation, struct btrfs_root_item, generation, 64);742BTRFS_SETGET_STACK_FUNCS(root_bytenr, struct btrfs_root_item, bytenr, 64);743BTRFS_SETGET_STACK_FUNCS(root_drop_level, struct btrfs_root_item, drop_level, 8);744BTRFS_SETGET_STACK_FUNCS(root_level, struct btrfs_root_item, level, 8);745BTRFS_SETGET_STACK_FUNCS(root_dirid, struct btrfs_root_item, root_dirid, 64);746BTRFS_SETGET_STACK_FUNCS(root_refs, struct btrfs_root_item, refs, 32);747BTRFS_SETGET_STACK_FUNCS(root_flags, struct btrfs_root_item, flags, 64);748BTRFS_SETGET_STACK_FUNCS(root_used, struct btrfs_root_item, bytes_used, 64);749BTRFS_SETGET_STACK_FUNCS(root_limit, struct btrfs_root_item, byte_limit, 64);750BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item,751 last_snapshot, 64);752BTRFS_SETGET_STACK_FUNCS(root_generation_v2, struct btrfs_root_item,753 generation_v2, 64);754BTRFS_SETGET_STACK_FUNCS(root_ctransid, struct btrfs_root_item, ctransid, 64);755BTRFS_SETGET_STACK_FUNCS(root_otransid, struct btrfs_root_item, otransid, 64);756BTRFS_SETGET_STACK_FUNCS(root_stransid, struct btrfs_root_item, stransid, 64);757BTRFS_SETGET_STACK_FUNCS(root_rtransid, struct btrfs_root_item, rtransid, 64);758 759/* struct btrfs_root_backup */760BTRFS_SETGET_STACK_FUNCS(backup_tree_root, struct btrfs_root_backup,761 tree_root, 64);762BTRFS_SETGET_STACK_FUNCS(backup_tree_root_gen, struct btrfs_root_backup,763 tree_root_gen, 64);764BTRFS_SETGET_STACK_FUNCS(backup_tree_root_level, struct btrfs_root_backup,765 tree_root_level, 8);766 767BTRFS_SETGET_STACK_FUNCS(backup_chunk_root, struct btrfs_root_backup,768 chunk_root, 64);769BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_gen, struct btrfs_root_backup,770 chunk_root_gen, 64);771BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_level, struct btrfs_root_backup,772 chunk_root_level, 8);773 774BTRFS_SETGET_STACK_FUNCS(backup_extent_root, struct btrfs_root_backup,775 extent_root, 64);776BTRFS_SETGET_STACK_FUNCS(backup_extent_root_gen, struct btrfs_root_backup,777 extent_root_gen, 64);778BTRFS_SETGET_STACK_FUNCS(backup_extent_root_level, struct btrfs_root_backup,779 extent_root_level, 8);780 781BTRFS_SETGET_STACK_FUNCS(backup_fs_root, struct btrfs_root_backup,782 fs_root, 64);783BTRFS_SETGET_STACK_FUNCS(backup_fs_root_gen, struct btrfs_root_backup,784 fs_root_gen, 64);785BTRFS_SETGET_STACK_FUNCS(backup_fs_root_level, struct btrfs_root_backup,786 fs_root_level, 8);787 788BTRFS_SETGET_STACK_FUNCS(backup_dev_root, struct btrfs_root_backup,789 dev_root, 64);790BTRFS_SETGET_STACK_FUNCS(backup_dev_root_gen, struct btrfs_root_backup,791 dev_root_gen, 64);792BTRFS_SETGET_STACK_FUNCS(backup_dev_root_level, struct btrfs_root_backup,793 dev_root_level, 8);794 795BTRFS_SETGET_STACK_FUNCS(backup_csum_root, struct btrfs_root_backup,796 csum_root, 64);797BTRFS_SETGET_STACK_FUNCS(backup_csum_root_gen, struct btrfs_root_backup,798 csum_root_gen, 64);799BTRFS_SETGET_STACK_FUNCS(backup_csum_root_level, struct btrfs_root_backup,800 csum_root_level, 8);801BTRFS_SETGET_STACK_FUNCS(backup_total_bytes, struct btrfs_root_backup,802 total_bytes, 64);803BTRFS_SETGET_STACK_FUNCS(backup_bytes_used, struct btrfs_root_backup,804 bytes_used, 64);805BTRFS_SETGET_STACK_FUNCS(backup_num_devices, struct btrfs_root_backup,806 num_devices, 64);807 808/* struct btrfs_balance_item */809BTRFS_SETGET_FUNCS(balance_flags, struct btrfs_balance_item, flags, 64);810 811static inline void btrfs_balance_data(const struct extent_buffer *eb,812 const struct btrfs_balance_item *bi,813 struct btrfs_disk_balance_args *ba)814{815 read_eb_member(eb, bi, struct btrfs_balance_item, data, ba);816}817 818static inline void btrfs_set_balance_data(struct extent_buffer *eb,819 struct btrfs_balance_item *bi,820 const struct btrfs_disk_balance_args *ba)821{822 write_eb_member(eb, bi, struct btrfs_balance_item, data, ba);823}824 825static inline void btrfs_balance_meta(const struct extent_buffer *eb,826 const struct btrfs_balance_item *bi,827 struct btrfs_disk_balance_args *ba)828{829 read_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);830}831 832static inline void btrfs_set_balance_meta(struct extent_buffer *eb,833 struct btrfs_balance_item *bi,834 const struct btrfs_disk_balance_args *ba)835{836 write_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);837}838 839static inline void btrfs_balance_sys(const struct extent_buffer *eb,840 const struct btrfs_balance_item *bi,841 struct btrfs_disk_balance_args *ba)842{843 read_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);844}845 846static inline void btrfs_set_balance_sys(struct extent_buffer *eb,847 struct btrfs_balance_item *bi,848 const struct btrfs_disk_balance_args *ba)849{850 write_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);851}852 853/* struct btrfs_super_block */854BTRFS_SETGET_STACK_FUNCS(super_bytenr, struct btrfs_super_block, bytenr, 64);855BTRFS_SETGET_STACK_FUNCS(super_flags, struct btrfs_super_block, flags, 64);856BTRFS_SETGET_STACK_FUNCS(super_generation, struct btrfs_super_block,857 generation, 64);858BTRFS_SETGET_STACK_FUNCS(super_root, struct btrfs_super_block, root, 64);859BTRFS_SETGET_STACK_FUNCS(super_sys_array_size,860 struct btrfs_super_block, sys_chunk_array_size, 32);861BTRFS_SETGET_STACK_FUNCS(super_chunk_root_generation,862 struct btrfs_super_block, chunk_root_generation, 64);863BTRFS_SETGET_STACK_FUNCS(super_root_level, struct btrfs_super_block,864 root_level, 8);865BTRFS_SETGET_STACK_FUNCS(super_chunk_root, struct btrfs_super_block,866 chunk_root, 64);867BTRFS_SETGET_STACK_FUNCS(super_chunk_root_level, struct btrfs_super_block,868 chunk_root_level, 8);869BTRFS_SETGET_STACK_FUNCS(super_log_root, struct btrfs_super_block, log_root, 64);870BTRFS_SETGET_STACK_FUNCS(super_log_root_level, struct btrfs_super_block,871 log_root_level, 8);872BTRFS_SETGET_STACK_FUNCS(super_total_bytes, struct btrfs_super_block,873 total_bytes, 64);874BTRFS_SETGET_STACK_FUNCS(super_bytes_used, struct btrfs_super_block,875 bytes_used, 64);876BTRFS_SETGET_STACK_FUNCS(super_sectorsize, struct btrfs_super_block,877 sectorsize, 32);878BTRFS_SETGET_STACK_FUNCS(super_nodesize, struct btrfs_super_block,879 nodesize, 32);880BTRFS_SETGET_STACK_FUNCS(super_stripesize, struct btrfs_super_block,881 stripesize, 32);882BTRFS_SETGET_STACK_FUNCS(super_root_dir, struct btrfs_super_block,883 root_dir_objectid, 64);884BTRFS_SETGET_STACK_FUNCS(super_num_devices, struct btrfs_super_block,885 num_devices, 64);886BTRFS_SETGET_STACK_FUNCS(super_compat_flags, struct btrfs_super_block,887 compat_flags, 64);888BTRFS_SETGET_STACK_FUNCS(super_compat_ro_flags, struct btrfs_super_block,889 compat_ro_flags, 64);890BTRFS_SETGET_STACK_FUNCS(super_incompat_flags, struct btrfs_super_block,891 incompat_flags, 64);892BTRFS_SETGET_STACK_FUNCS(super_csum_type, struct btrfs_super_block,893 csum_type, 16);894BTRFS_SETGET_STACK_FUNCS(super_cache_generation, struct btrfs_super_block,895 cache_generation, 64);896BTRFS_SETGET_STACK_FUNCS(super_magic, struct btrfs_super_block, magic, 64);897BTRFS_SETGET_STACK_FUNCS(super_uuid_tree_generation, struct btrfs_super_block,898 uuid_tree_generation, 64);899BTRFS_SETGET_STACK_FUNCS(super_nr_global_roots, struct btrfs_super_block,900 nr_global_roots, 64);901 902/* struct btrfs_file_extent_item */903BTRFS_SETGET_STACK_FUNCS(stack_file_extent_type, struct btrfs_file_extent_item,904 type, 8);905BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_bytenr,906 struct btrfs_file_extent_item, disk_bytenr, 64);907BTRFS_SETGET_STACK_FUNCS(stack_file_extent_offset,908 struct btrfs_file_extent_item, offset, 64);909BTRFS_SETGET_STACK_FUNCS(stack_file_extent_generation,910 struct btrfs_file_extent_item, generation, 64);911BTRFS_SETGET_STACK_FUNCS(stack_file_extent_num_bytes,912 struct btrfs_file_extent_item, num_bytes, 64);913BTRFS_SETGET_STACK_FUNCS(stack_file_extent_ram_bytes,914 struct btrfs_file_extent_item, ram_bytes, 64);915BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_num_bytes,916 struct btrfs_file_extent_item, disk_num_bytes, 64);917BTRFS_SETGET_STACK_FUNCS(stack_file_extent_compression,918 struct btrfs_file_extent_item, compression, 8);919 920 921BTRFS_SETGET_FUNCS(file_extent_type, struct btrfs_file_extent_item, type, 8);922BTRFS_SETGET_FUNCS(file_extent_disk_bytenr, struct btrfs_file_extent_item,923 disk_bytenr, 64);924BTRFS_SETGET_FUNCS(file_extent_generation, struct btrfs_file_extent_item,925 generation, 64);926BTRFS_SETGET_FUNCS(file_extent_disk_num_bytes, struct btrfs_file_extent_item,927 disk_num_bytes, 64);928BTRFS_SETGET_FUNCS(file_extent_offset, struct btrfs_file_extent_item,929 offset, 64);930BTRFS_SETGET_FUNCS(file_extent_num_bytes, struct btrfs_file_extent_item,931 num_bytes, 64);932BTRFS_SETGET_FUNCS(file_extent_ram_bytes, struct btrfs_file_extent_item,933 ram_bytes, 64);934BTRFS_SETGET_FUNCS(file_extent_compression, struct btrfs_file_extent_item,935 compression, 8);936BTRFS_SETGET_FUNCS(file_extent_encryption, struct btrfs_file_extent_item,937 encryption, 8);938BTRFS_SETGET_FUNCS(file_extent_other_encoding, struct btrfs_file_extent_item,939 other_encoding, 16);940 941/* btrfs_qgroup_status_item */942BTRFS_SETGET_FUNCS(qgroup_status_generation, struct btrfs_qgroup_status_item,943 generation, 64);944BTRFS_SETGET_FUNCS(qgroup_status_version, struct btrfs_qgroup_status_item,945 version, 64);946BTRFS_SETGET_FUNCS(qgroup_status_flags, struct btrfs_qgroup_status_item,947 flags, 64);948BTRFS_SETGET_FUNCS(qgroup_status_rescan, struct btrfs_qgroup_status_item,949 rescan, 64);950BTRFS_SETGET_FUNCS(qgroup_status_enable_gen, struct btrfs_qgroup_status_item,951 enable_gen, 64);952 953/* btrfs_qgroup_info_item */954BTRFS_SETGET_FUNCS(qgroup_info_generation, struct btrfs_qgroup_info_item,955 generation, 64);956BTRFS_SETGET_FUNCS(qgroup_info_rfer, struct btrfs_qgroup_info_item, rfer, 64);957BTRFS_SETGET_FUNCS(qgroup_info_rfer_cmpr, struct btrfs_qgroup_info_item,958 rfer_cmpr, 64);959BTRFS_SETGET_FUNCS(qgroup_info_excl, struct btrfs_qgroup_info_item, excl, 64);960BTRFS_SETGET_FUNCS(qgroup_info_excl_cmpr, struct btrfs_qgroup_info_item,961 excl_cmpr, 64);962 963BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_generation,964 struct btrfs_qgroup_info_item, generation, 64);965BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer, struct btrfs_qgroup_info_item,966 rfer, 64);967BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer_cmpr,968 struct btrfs_qgroup_info_item, rfer_cmpr, 64);969BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl, struct btrfs_qgroup_info_item,970 excl, 64);971BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl_cmpr,972 struct btrfs_qgroup_info_item, excl_cmpr, 64);973 974/* btrfs_qgroup_limit_item */975BTRFS_SETGET_FUNCS(qgroup_limit_flags, struct btrfs_qgroup_limit_item, flags, 64);976BTRFS_SETGET_FUNCS(qgroup_limit_max_rfer, struct btrfs_qgroup_limit_item,977 max_rfer, 64);978BTRFS_SETGET_FUNCS(qgroup_limit_max_excl, struct btrfs_qgroup_limit_item,979 max_excl, 64);980BTRFS_SETGET_FUNCS(qgroup_limit_rsv_rfer, struct btrfs_qgroup_limit_item,981 rsv_rfer, 64);982BTRFS_SETGET_FUNCS(qgroup_limit_rsv_excl, struct btrfs_qgroup_limit_item,983 rsv_excl, 64);984BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_flags,985 struct btrfs_qgroup_limit_item, flags, 64);986BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_max_rfer,987 struct btrfs_qgroup_limit_item, max_rfer, 64);988BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_max_excl,989 struct btrfs_qgroup_limit_item, max_excl, 64);990BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_rsv_rfer,991 struct btrfs_qgroup_limit_item, rsv_rfer, 64);992BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_rsv_excl,993 struct btrfs_qgroup_limit_item, rsv_excl, 64);994 995/* btrfs_dev_replace_item */996BTRFS_SETGET_FUNCS(dev_replace_src_devid,997 struct btrfs_dev_replace_item, src_devid, 64);998BTRFS_SETGET_FUNCS(dev_replace_cont_reading_from_srcdev_mode,999 struct btrfs_dev_replace_item, cont_reading_from_srcdev_mode,1000 64);1001BTRFS_SETGET_FUNCS(dev_replace_replace_state, struct btrfs_dev_replace_item,1002 replace_state, 64);1003BTRFS_SETGET_FUNCS(dev_replace_time_started, struct btrfs_dev_replace_item,1004 time_started, 64);1005BTRFS_SETGET_FUNCS(dev_replace_time_stopped, struct btrfs_dev_replace_item,1006 time_stopped, 64);1007BTRFS_SETGET_FUNCS(dev_replace_num_write_errors, struct btrfs_dev_replace_item,1008 num_write_errors, 64);1009BTRFS_SETGET_FUNCS(dev_replace_num_uncorrectable_read_errors,1010 struct btrfs_dev_replace_item, num_uncorrectable_read_errors,1011 64);1012BTRFS_SETGET_FUNCS(dev_replace_cursor_left, struct btrfs_dev_replace_item,1013 cursor_left, 64);1014BTRFS_SETGET_FUNCS(dev_replace_cursor_right, struct btrfs_dev_replace_item,1015 cursor_right, 64);1016 1017BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_src_devid,1018 struct btrfs_dev_replace_item, src_devid, 64);1019BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cont_reading_from_srcdev_mode,1020 struct btrfs_dev_replace_item,1021 cont_reading_from_srcdev_mode, 64);1022BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_replace_state,1023 struct btrfs_dev_replace_item, replace_state, 64);1024BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_started,1025 struct btrfs_dev_replace_item, time_started, 64);1026BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_stopped,1027 struct btrfs_dev_replace_item, time_stopped, 64);1028BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_write_errors,1029 struct btrfs_dev_replace_item, num_write_errors, 64);1030BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_uncorrectable_read_errors,1031 struct btrfs_dev_replace_item,1032 num_uncorrectable_read_errors, 64);1033BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_left,1034 struct btrfs_dev_replace_item, cursor_left, 64);1035BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_right,1036 struct btrfs_dev_replace_item, cursor_right, 64);1037 1038/* btrfs_verity_descriptor_item */1039BTRFS_SETGET_FUNCS(verity_descriptor_encryption, struct btrfs_verity_descriptor_item,1040 encryption, 8);1041BTRFS_SETGET_FUNCS(verity_descriptor_size, struct btrfs_verity_descriptor_item,1042 size, 64);1043BTRFS_SETGET_STACK_FUNCS(stack_verity_descriptor_encryption,1044 struct btrfs_verity_descriptor_item, encryption, 8);1045BTRFS_SETGET_STACK_FUNCS(stack_verity_descriptor_size,1046 struct btrfs_verity_descriptor_item, size, 64);1047 1048/* Cast into the data area of the leaf. */1049#define btrfs_item_ptr(leaf, slot, type) \1050 ((type *)(btrfs_item_nr_offset(leaf, 0) + btrfs_item_offset(leaf, slot)))1051 1052#define btrfs_item_ptr_offset(leaf, slot) \1053 ((unsigned long)(btrfs_item_nr_offset(leaf, 0) + btrfs_item_offset(leaf, slot)))1054 1055#endif1056