| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** This header was automatically generated from a Linux kernel header |
| *** of the same name, to make information necessary for userspace to |
| *** call into the kernel available to libc. It contains only constants, |
| *** structures, and macros generated from the original header, and thus, |
| *** contains no copyrightable information. |
| *** |
| *** To edit the content of this header, modify the corresponding |
| *** source file (e.g. under external/kernel-headers/original/) then |
| *** run bionic/libc/kernel/tools/update_all.py |
| *** |
| *** Any manual change here will be lost the next time this script will |
| *** be run. You've been warned! |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #ifndef _LINUX_NILFS2_ONDISK_H |
| #define _LINUX_NILFS2_ONDISK_H |
| #include <linux/types.h> |
| #include <linux/magic.h> |
| #include <asm/byteorder.h> |
| #define NILFS_INODE_BMAP_SIZE 7 |
| struct nilfs_inode { |
| __le64 i_blocks; |
| __le64 i_size; |
| __le64 i_ctime; |
| __le64 i_mtime; |
| __le32 i_ctime_nsec; |
| __le32 i_mtime_nsec; |
| __le32 i_uid; |
| __le32 i_gid; |
| __le16 i_mode; |
| __le16 i_links_count; |
| __le32 i_flags; |
| __le64 i_bmap[NILFS_INODE_BMAP_SIZE]; |
| #define i_device_code i_bmap[0] |
| __le64 i_xattr; |
| __le32 i_generation; |
| __le32 i_pad; |
| }; |
| #define NILFS_MIN_INODE_SIZE 128 |
| struct nilfs_super_root { |
| __le32 sr_sum; |
| __le16 sr_bytes; |
| __le16 sr_flags; |
| __le64 sr_nongc_ctime; |
| struct nilfs_inode sr_dat; |
| struct nilfs_inode sr_cpfile; |
| struct nilfs_inode sr_sufile; |
| }; |
| #define NILFS_SR_MDT_OFFSET(inode_size,i) ((unsigned long) & ((struct nilfs_super_root *) 0)->sr_dat + (inode_size) * (i)) |
| #define NILFS_SR_DAT_OFFSET(inode_size) NILFS_SR_MDT_OFFSET(inode_size, 0) |
| #define NILFS_SR_CPFILE_OFFSET(inode_size) NILFS_SR_MDT_OFFSET(inode_size, 1) |
| #define NILFS_SR_SUFILE_OFFSET(inode_size) NILFS_SR_MDT_OFFSET(inode_size, 2) |
| #define NILFS_SR_BYTES(inode_size) NILFS_SR_MDT_OFFSET(inode_size, 3) |
| #define NILFS_DFL_MAX_MNT_COUNT 50 |
| #define NILFS_VALID_FS 0x0001 |
| #define NILFS_ERROR_FS 0x0002 |
| #define NILFS_RESIZE_FS 0x0004 |
| #define NILFS_MOUNT_ERROR_MODE 0x0070 |
| #define NILFS_MOUNT_ERRORS_CONT 0x0010 |
| #define NILFS_MOUNT_ERRORS_RO 0x0020 |
| #define NILFS_MOUNT_ERRORS_PANIC 0x0040 |
| #define NILFS_MOUNT_BARRIER 0x1000 |
| #define NILFS_MOUNT_STRICT_ORDER 0x2000 |
| #define NILFS_MOUNT_NORECOVERY 0x4000 |
| #define NILFS_MOUNT_DISCARD 0x8000 |
| struct nilfs_super_block { |
| __le32 s_rev_level; |
| __le16 s_minor_rev_level; |
| __le16 s_magic; |
| __le16 s_bytes; |
| __le16 s_flags; |
| __le32 s_crc_seed; |
| __le32 s_sum; |
| __le32 s_log_block_size; |
| __le64 s_nsegments; |
| __le64 s_dev_size; |
| __le64 s_first_data_block; |
| __le32 s_blocks_per_segment; |
| __le32 s_r_segments_percentage; |
| __le64 s_last_cno; |
| __le64 s_last_pseg; |
| __le64 s_last_seq; |
| __le64 s_free_blocks_count; |
| __le64 s_ctime; |
| __le64 s_mtime; |
| __le64 s_wtime; |
| __le16 s_mnt_count; |
| __le16 s_max_mnt_count; |
| __le16 s_state; |
| __le16 s_errors; |
| __le64 s_lastcheck; |
| __le32 s_checkinterval; |
| __le32 s_creator_os; |
| __le16 s_def_resuid; |
| __le16 s_def_resgid; |
| __le32 s_first_ino; |
| __le16 s_inode_size; |
| __le16 s_dat_entry_size; |
| __le16 s_checkpoint_size; |
| __le16 s_segment_usage_size; |
| __u8 s_uuid[16]; |
| char s_volume_name[80]; |
| __le32 s_c_interval; |
| __le32 s_c_block_max; |
| __le64 s_feature_compat; |
| __le64 s_feature_compat_ro; |
| __le64 s_feature_incompat; |
| __u32 s_reserved[186]; |
| }; |
| #define NILFS_OS_LINUX 0 |
| #define NILFS_CURRENT_REV 2 |
| #define NILFS_MINOR_REV 0 |
| #define NILFS_MIN_SUPP_REV 2 |
| #define NILFS_FEATURE_COMPAT_RO_BLOCK_COUNT 0x00000001ULL |
| #define NILFS_FEATURE_COMPAT_SUPP 0ULL |
| #define NILFS_FEATURE_COMPAT_RO_SUPP NILFS_FEATURE_COMPAT_RO_BLOCK_COUNT |
| #define NILFS_FEATURE_INCOMPAT_SUPP 0ULL |
| #define NILFS_SB_BYTES ((long) & ((struct nilfs_super_block *) 0)->s_reserved) |
| #define NILFS_ROOT_INO 2 |
| #define NILFS_DAT_INO 3 |
| #define NILFS_CPFILE_INO 4 |
| #define NILFS_SUFILE_INO 5 |
| #define NILFS_IFILE_INO 6 |
| #define NILFS_ATIME_INO 7 |
| #define NILFS_XATTR_INO 8 |
| #define NILFS_SKETCH_INO 10 |
| #define NILFS_USER_INO 11 |
| #define NILFS_SB_OFFSET_BYTES 1024 |
| #define NILFS_SEG_MIN_BLOCKS 16 |
| #define NILFS_PSEG_MIN_BLOCKS 2 |
| #define NILFS_MIN_NRSVSEGS 8 |
| #define NILFS_ROOT_METADATA_FILE(ino) ((ino) >= NILFS_DAT_INO && (ino) <= NILFS_SUFILE_INO) |
| #define NILFS_SB2_OFFSET_BYTES(devsize) ((((devsize) >> 12) - 1) << 12) |
| #define NILFS_LINK_MAX 32000 |
| #define NILFS_NAME_LEN 255 |
| #define NILFS_MIN_BLOCK_SIZE 1024 |
| #define NILFS_MAX_BLOCK_SIZE 65536 |
| struct nilfs_dir_entry { |
| __le64 inode; |
| __le16 rec_len; |
| __u8 name_len; |
| __u8 file_type; |
| char name[NILFS_NAME_LEN]; |
| char pad; |
| }; |
| enum { |
| NILFS_FT_UNKNOWN, |
| NILFS_FT_REG_FILE, |
| NILFS_FT_DIR, |
| NILFS_FT_CHRDEV, |
| NILFS_FT_BLKDEV, |
| NILFS_FT_FIFO, |
| NILFS_FT_SOCK, |
| NILFS_FT_SYMLINK, |
| NILFS_FT_MAX |
| }; |
| #define NILFS_DIR_PAD 8 |
| #define NILFS_DIR_ROUND (NILFS_DIR_PAD - 1) |
| #define NILFS_DIR_REC_LEN(name_len) (((name_len) + 12 + NILFS_DIR_ROUND) & ~NILFS_DIR_ROUND) |
| #define NILFS_MAX_REC_LEN ((1 << 16) - 1) |
| struct nilfs_finfo { |
| __le64 fi_ino; |
| __le64 fi_cno; |
| __le32 fi_nblocks; |
| __le32 fi_ndatablk; |
| }; |
| struct nilfs_binfo_v { |
| __le64 bi_vblocknr; |
| __le64 bi_blkoff; |
| }; |
| struct nilfs_binfo_dat { |
| __le64 bi_blkoff; |
| __u8 bi_level; |
| __u8 bi_pad[7]; |
| }; |
| union nilfs_binfo { |
| struct nilfs_binfo_v bi_v; |
| struct nilfs_binfo_dat bi_dat; |
| }; |
| struct nilfs_segment_summary { |
| __le32 ss_datasum; |
| __le32 ss_sumsum; |
| __le32 ss_magic; |
| __le16 ss_bytes; |
| __le16 ss_flags; |
| __le64 ss_seq; |
| __le64 ss_create; |
| __le64 ss_next; |
| __le32 ss_nblocks; |
| __le32 ss_nfinfo; |
| __le32 ss_sumbytes; |
| __le32 ss_pad; |
| __le64 ss_cno; |
| }; |
| #define NILFS_SEGSUM_MAGIC 0x1eaffa11 |
| #define NILFS_SS_LOGBGN 0x0001 |
| #define NILFS_SS_LOGEND 0x0002 |
| #define NILFS_SS_SR 0x0004 |
| #define NILFS_SS_SYNDT 0x0008 |
| #define NILFS_SS_GC 0x0010 |
| struct nilfs_btree_node { |
| __u8 bn_flags; |
| __u8 bn_level; |
| __le16 bn_nchildren; |
| __le32 bn_pad; |
| }; |
| #define NILFS_BTREE_NODE_ROOT 0x01 |
| #define NILFS_BTREE_LEVEL_DATA 0 |
| #define NILFS_BTREE_LEVEL_NODE_MIN (NILFS_BTREE_LEVEL_DATA + 1) |
| #define NILFS_BTREE_LEVEL_MAX 14 |
| struct nilfs_direct_node { |
| __u8 dn_flags; |
| __u8 pad[7]; |
| }; |
| struct nilfs_palloc_group_desc { |
| __le32 pg_nfrees; |
| }; |
| struct nilfs_dat_entry { |
| __le64 de_blocknr; |
| __le64 de_start; |
| __le64 de_end; |
| __le64 de_rsv; |
| }; |
| #define NILFS_MIN_DAT_ENTRY_SIZE 32 |
| struct nilfs_snapshot_list { |
| __le64 ssl_next; |
| __le64 ssl_prev; |
| }; |
| struct nilfs_checkpoint { |
| __le32 cp_flags; |
| __le32 cp_checkpoints_count; |
| struct nilfs_snapshot_list cp_snapshot_list; |
| __le64 cp_cno; |
| __le64 cp_create; |
| __le64 cp_nblk_inc; |
| __le64 cp_inodes_count; |
| __le64 cp_blocks_count; |
| struct nilfs_inode cp_ifile_inode; |
| }; |
| #define NILFS_MIN_CHECKPOINT_SIZE (64 + NILFS_MIN_INODE_SIZE) |
| enum { |
| NILFS_CHECKPOINT_SNAPSHOT, |
| NILFS_CHECKPOINT_INVALID, |
| NILFS_CHECKPOINT_SKETCH, |
| NILFS_CHECKPOINT_MINOR, |
| }; |
| #define NILFS_CHECKPOINT_FNS(flag,name) static inline void nilfs_checkpoint_set_ ##name(struct nilfs_checkpoint * cp) \ |
| { cp->cp_flags = __cpu_to_le32(__le32_to_cpu(cp->cp_flags) | (1UL << NILFS_CHECKPOINT_ ##flag)); \ |
| } static inline void nilfs_checkpoint_clear_ ##name(struct nilfs_checkpoint * cp) \ |
| { cp->cp_flags = __cpu_to_le32(__le32_to_cpu(cp->cp_flags) & ~(1UL << NILFS_CHECKPOINT_ ##flag)); \ |
| } static inline int nilfs_checkpoint_ ##name(const struct nilfs_checkpoint * cp) \ |
| { return ! ! (__le32_to_cpu(cp->cp_flags) & (1UL << NILFS_CHECKPOINT_ ##flag)); \ |
| } |
| struct nilfs_cpfile_header { |
| __le64 ch_ncheckpoints; |
| __le64 ch_nsnapshots; |
| struct nilfs_snapshot_list ch_snapshot_list; |
| }; |
| #define NILFS_CPFILE_FIRST_CHECKPOINT_OFFSET ((sizeof(struct nilfs_cpfile_header) + sizeof(struct nilfs_checkpoint) - 1) / sizeof(struct nilfs_checkpoint)) |
| struct nilfs_segment_usage { |
| __le64 su_lastmod; |
| __le32 su_nblocks; |
| __le32 su_flags; |
| }; |
| #define NILFS_MIN_SEGMENT_USAGE_SIZE 16 |
| enum { |
| NILFS_SEGMENT_USAGE_ACTIVE, |
| NILFS_SEGMENT_USAGE_DIRTY, |
| NILFS_SEGMENT_USAGE_ERROR, |
| }; |
| #define NILFS_SEGMENT_USAGE_FNS(flag,name) static inline void nilfs_segment_usage_set_ ##name(struct nilfs_segment_usage * su) \ |
| { su->su_flags = __cpu_to_le32(__le32_to_cpu(su->su_flags) | (1UL << NILFS_SEGMENT_USAGE_ ##flag)); \ |
| } static inline void nilfs_segment_usage_clear_ ##name(struct nilfs_segment_usage * su) \ |
| { su->su_flags = __cpu_to_le32(__le32_to_cpu(su->su_flags) & ~(1UL << NILFS_SEGMENT_USAGE_ ##flag)); \ |
| } static inline int nilfs_segment_usage_ ##name(const struct nilfs_segment_usage * su) \ |
| { return ! ! (__le32_to_cpu(su->su_flags) & (1UL << NILFS_SEGMENT_USAGE_ ##flag)); \ |
| } |
| struct nilfs_sufile_header { |
| __le64 sh_ncleansegs; |
| __le64 sh_ndirtysegs; |
| __le64 sh_last_alloc; |
| }; |
| #define NILFS_SUFILE_FIRST_SEGMENT_USAGE_OFFSET ((sizeof(struct nilfs_sufile_header) + sizeof(struct nilfs_segment_usage) - 1) / sizeof(struct nilfs_segment_usage)) |
| #endif |