/* * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef __XFS_LOG_FORMAT_H__ #define __XFS_LOG_FORMAT_H__ struct xfs_mount; struct xfs_trans_res; /* * On-disk Log Format definitions. * * This file contains all the on-disk format definitions used within the log. It * includes the physical log structure itself, as well as all the log item * format structures that are written into the log and intepreted by log * recovery. We start with the physical log format definitions, and then work * through all the log items definitions and everything they encode into the * log. */ typedef __uint32_t xlog_tid_t; #define XLOG_MIN_ICLOGS 2 #define XLOG_MAX_ICLOGS 8 #define XLOG_HEADER_MAGIC_NUM 0xFEEDbabe /* Invalid cycle number */ #define XLOG_VERSION_1 1 #define XLOG_VERSION_2 2 /* Large IClogs, Log sunit */ #define XLOG_VERSION_OKBITS (XLOG_VERSION_1 | XLOG_VERSION_2) #define XLOG_MIN_RECORD_BSIZE (16*1024) /* eventually 32k */ #define XLOG_BIG_RECORD_BSIZE (32*1024) /* 32k buffers */ #define XLOG_MAX_RECORD_BSIZE (256*1024) #define XLOG_HEADER_CYCLE_SIZE (32*1024) /* cycle data in header */ #define XLOG_MIN_RECORD_BSHIFT 14 /* 16384 == 1 << 14 */ #define XLOG_BIG_RECORD_BSHIFT 15 /* 32k == 1 << 15 */ #define XLOG_MAX_RECORD_BSHIFT 18 /* 256k == 1 << 18 */ #define XLOG_BTOLSUNIT(log, b) (((b)+(log)->l_mp->m_sb.sb_logsunit-1) / \ (log)->l_mp->m_sb.sb_logsunit) #define XLOG_LSUNITTOB(log, su) ((su) * (log)->l_mp->m_sb.sb_logsunit) #define XLOG_HEADER_SIZE 512 /* Minimum number of transactions that must fit in the log (defined by mkfs) */ #define XFS_MIN_LOG_FACTOR 3 #define XLOG_REC_SHIFT(log) \ BTOBB(1 << (xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? \ XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT)) #define XLOG_TOTAL_REC_SHIFT(log) \ BTOBB(XLOG_MAX_ICLOGS << (xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? \ XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT)) /* get lsn fields */ #define CYCLE_LSN(lsn) ((uint)((lsn)>>32)) #define BLOCK_LSN(lsn) ((uint)(lsn)) /* this is used in a spot where we might otherwise double-endian-flip */ #define CYCLE_LSN_DISK(lsn) (((__be32 *)&(lsn))[0]) static inline xfs_lsn_t xlog_assign_lsn(uint cycle, uint block) { return ((xfs_lsn_t)cycle << 32) | block; } static inline uint xlog_get_cycle(char *ptr) { if (be32_to_cpu(*(__be32 *)ptr) == XLOG_HEADER_MAGIC_NUM) return be32_to_cpu(*((__be32 *)ptr + 1)); else return be32_to_cpu(*(__be32 *)ptr); } /* Log Clients */ #define XFS_TRANSACTION 0x69 #define XFS_VOLUME 0x2 #define XFS_LOG 0xaa #define XLOG_UNMOUNT_TYPE 0x556e /* Un for Unmount */ /* Region types for iovec's i_type */ #define XLOG_REG_TYPE_BFORMAT 1 #define XLOG_REG_TYPE_BCHUNK 2 #define XLOG_REG_TYPE_EFI_FORMAT 3 #define XLOG_REG_TYPE_EFD_FORMAT 4 #define XLOG_REG_TYPE_IFORMAT 5 #define XLOG_REG_TYPE_ICORE 6 #define XLOG_REG_TYPE_IEXT 7 #define XLOG_REG_TYPE_IBROOT 8 #define XLOG_REG_TYPE_ILOCAL 9 #define XLOG_REG_TYPE_IATTR_EXT 10 #define XLOG_REG_TYPE_IATTR_BROOT 11 #define XLOG_REG_TYPE_IATTR_LOCAL 12 #define XLOG_REG_TYPE_QFORMAT 13 #define XLOG_REG_TYPE_DQUOT 14 #define XLOG_REG_TYPE_QUOTAOFF 15 #define XLOG_REG_TYPE_LRHEADER 16 #define XLOG_REG_TYPE_UNMOUNT 17 #define XLOG_REG_TYPE_COMMIT 18 #define XLOG_REG_TYPE_TRANSHDR 19 #define XLOG_REG_TYPE_ICREATE 20 #define XLOG_REG_TYPE_MAX 20 /* * Flags to log operation header * * The first write of a new transaction will be preceded with a start * record, XLOG_START_TRANS. Once a transaction is committed, a commit * record is written, XLOG_COMMIT_TRANS. If a single region can not fit into * the remainder of the current active in-core log, it is split up into * multiple regions. Each partial region will be marked with a * XLOG_CONTINUE_TRANS until the last one, which gets marked with XLOG_END_TRANS. * */ #define XLOG_START_TRANS 0x01 /* Start a new transaction */ #define XLOG_COMMIT_TRANS 0x02 /* Commit this transaction */ #define XLOG_CONTINUE_TRANS 0x04 /* Cont this trans into new region */ #define XLOG_WAS_CONT_TRANS 0x08 /* Cont this trans into new region */ #define XLOG_END_TRANS 0x10 /* End a continued transaction */ #define XLOG_UNMOUNT_TRANS 0x20 /* Unmount a filesystem transaction */ typedef struct xlog_op_header { __be32 oh_tid; /* transaction id of operation : 4 b */ __be32 oh_len; /* bytes in data region : 4 b */ __u8 oh_clientid; /* who sent me this : 1 b */ __u8 oh_flags; /* : 1 b */ __u16 oh_res2; /* 32 bit align : 2 b */ } xlog_op_header_t; /* valid values for h_fmt */ #define XLOG_FMT_UNKNOWN 0 #define XLOG_FMT_LINUX_LE 1 #define XLOG_FMT_LINUX_BE 2 #define XLOG_FMT_IRIX_BE 3 /* our fmt */ #ifdef XFS_NATIVE_HOST #define XLOG_FMT XLOG_FMT_LINUX_BE #else #define XLOG_FMT XLOG_FMT_LINUX_LE #endif typedef struct xlog_rec_header { __be32 h_magicno; /* log record (LR) identifier : 4 */ __be32 h_cycle; /* write cycle of log : 4 */ __be32 h_version; /* LR version : 4 */ __be32 h_len; /* len in bytes; should be 64-bit aligned: 4 */ __be64 h_lsn; /* lsn of this LR : 8 */ __be64 h_tail_lsn; /* lsn of 1st LR w/ buffers not committed: 8 */ __le32 h_crc; /* crc of log record : 4 */ __be32 h_prev_block; /* block number to previous LR : 4 */ __be32 h_num_logops; /* number of log operations in this LR : 4 */ __be32 h_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; /* new fields */ __be32 h_fmt; /* format of log record : 4 */ uuid_t h_fs_uuid; /* uuid of FS : 16 */ __be32 h_size; /* iclog size : 4 */ } xlog_rec_header_t; typedef struct xlog_rec_ext_header { __be32 xh_cycle; /* write cycle of log : 4 */ __be32 xh_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; /* : 256 */ } xlog_rec_ext_header_t; /* * Quite misnamed, because this union lays out the actual on-disk log buffer. */ typedef union xlog_in_core2 { xlog_rec_header_t hic_header; xlog_rec_ext_header_t hic_xheader; char hic_sector[XLOG_HEADER_SIZE]; } xlog_in_core_2_t; /* not an on-disk structure, but needed by log recovery in userspace */ typedef struct xfs_log_iovec { void *i_addr; /* beginning address of region */ int i_len; /* length in bytes of region */ uint i_type; /* type of region */ } xfs_log_iovec_t; /* * Transaction Header definitions. * * This is the structure written in the log at the head of every transaction. It * identifies the type and id of the transaction, and contains the number of * items logged by the transaction so we know how many to expect during * recovery. * * Do not change the below structure without redoing the code in * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans(). */ typedef struct xfs_trans_header { uint th_magic; /* magic number */ uint th_type; /* transaction type */ __int32_t th_tid; /* transaction id (unused) */ uint th_num_items; /* num items logged by trans */ } xfs_trans_header_t; #define XFS_TRANS_HEADER_MAGIC 0x5452414e /* TRAN */ /* * Log item types. */ #define XFS_LI_EFI 0x1236 #define XFS_LI_EFD 0x1237 #define XFS_LI_IUNLINK 0x1238 #define XFS_LI_INODE 0x123b /* aligned ino chunks, var-size ibufs */ #define XFS_LI_BUF 0x123c /* v2 bufs, variable sized inode bufs */ #define XFS_LI_DQUOT 0x123d #define XFS_LI_QUOTAOFF 0x123e #define XFS_LI_ICREATE 0x123f #define XFS_LI_TYPE_DESC \ { XFS_LI_EFI, "XFS_LI_EFI" }, \ { XFS_LI_EFD, "XFS_LI_EFD" }, \ { XFS_LI_IUNLINK, "XFS_LI_IUNLINK" }, \ { XFS_LI_INODE, "XFS_LI_INODE" }, \ { XFS_LI_BUF, "XFS_LI_BUF" }, \ { XFS_LI_DQUOT, "XFS_LI_DQUOT" }, \ { XFS_LI_QUOTAOFF, "XFS_LI_QUOTAOFF" }, \ { XFS_LI_ICREATE, "XFS_LI_ICREATE" } /* * Inode Log Item Format definitions. * * This is the structure used to lay out an inode log item in the * log. The size of the inline data/extents/b-tree root to be logged * (if any) is indicated in the ilf_dsize field. Changes to this structure * must be added on to the end. */ typedef struct xfs_inode_log_format { __uint16_t ilf_type; /* inode log item type */ __uint16_t ilf_size; /* size of this item */ __uint32_t ilf_fields; /* flags for fields logged */ __uint16_t ilf_asize; /* size of attr d/ext/root */ __uint16_t ilf_dsize; /* size of data/ext/root */ __uint64_t ilf_ino; /* inode number */ union { __uint32_t ilfu_rdev; /* rdev value for dev inode*/ uuid_t ilfu_uuid; /* mount point value */ } ilf_u; __int64_t ilf_blkno; /* blkno of inode buffer */ __int32_t ilf_len; /* len of inode buffer */ __int32_t ilf_boffset; /* off of inode in buffer */ } xfs_inode_log_format_t; typedef struct xfs_inode_log_format_32 { __uint16_t ilf_type; /* inode log item type */ __uint16_t ilf_size; /* size of this item */ __uint32_t ilf_fields; /* flags for fields logged */ __uint16_t ilf_asize; /* size of attr d/ext/root */ __uint16_t ilf_dsize; /* size of data/ext/root */ __uint64_t ilf_ino; /* inode number */ union { __uint32_t ilfu_rdev; /* rdev value for dev inode*/ uuid_t ilfu_uuid; /* mount point value */ } ilf_u; __int64_t ilf_blkno; /* blkno of inode buffer */ __int32_t ilf_len; /* len of inode buffer */ __int32_t ilf_boffset; /* off of inode in buffer */ } __attribute__((packed)) xfs_inode_log_format_32_t; typedef struct xfs_inode_log_format_64 { __uint16_t ilf_type; /* inode log item type */ __uint16_t ilf_size; /* size of this item */ __uint32_t ilf_fields; /* flags for fields logged */ __uint16_t ilf_asize; /* size of attr d/ext/root */ __uint16_t ilf_dsize; /* size of data/ext/root */ __uint32_t ilf_pad; /* pad for 64 bit boundary */ __uint64_t ilf_ino; /* inode number */ union { __uint32_t ilfu_rdev; /* rdev value for dev inode*/ uuid_t ilfu_uuid; /* mount point value */ } ilf_u; __int64_t ilf_blkno; /* blkno of inode buffer */ __int32_t ilf_len; /* len of inode buffer */ __int32_t ilf_boffset; /* off of inode in buffer */ } xfs_inode_log_format_64_t; /* * Flags for xfs_trans_log_inode flags field. */ #define XFS_ILOG_CORE 0x001 /* log standard inode fields */ #define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */ #define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */ #define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */ #define XFS_ILOG_DEV 0x010 /* log the dev field */ #define XFS_ILOG_UUID 0x020 /* log the uuid field */ #define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */ #define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */ #define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */ #define XFS_ILOG_DOWNER 0x200 /* change the data fork owner on replay */ #define XFS_ILOG_AOWNER 0x400 /* change the attr fork owner on replay */ /* * The timestamps are dirty, but not necessarily anything else in the inode * core. Unlike the other fields above this one must never make it to disk * in the ilf_fields of the inode_log_format, but is purely store in-memory in * ili_fields in the inode_log_item. */ #define XFS_ILOG_TIMESTAMP 0x4000 #define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ XFS_ILOG_DBROOT | XFS_ILOG_DEV | \ XFS_ILOG_UUID | XFS_ILOG_ADATA | \ XFS_ILOG_AEXT | XFS_ILOG_ABROOT | \ XFS_ILOG_DOWNER | XFS_ILOG_AOWNER) #define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ XFS_ILOG_DBROOT) #define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ XFS_ILOG_ABROOT) #define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \ XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \ XFS_ILOG_DEV | XFS_ILOG_UUID | \ XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ XFS_ILOG_ABROOT | XFS_ILOG_TIMESTAMP | \ XFS_ILOG_DOWNER | XFS_ILOG_AOWNER) static inline int xfs_ilog_fbroot(int w) { return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT); } static inline int xfs_ilog_fext(int w) { return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT); } static inline int xfs_ilog_fdata(int w) { return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA); } /* * Incore version of the on-disk inode core structures. We log this directly * into the journal in host CPU format (for better or worse) and as such * directly mirrors the xfs_dinode structure as it must contain all the same * information. */ typedef struct xfs_ictimestamp { __int32_t t_sec; /* timestamp seconds */ __int32_t t_nsec; /* timestamp nanoseconds */ } xfs_ictimestamp_t; /* * Define the format of the inode core that is logged. This structure must be * kept identical to struct xfs_dinode except for the endianness annotations. */ struct xfs_log_dinode { __uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */ __uint16_t di_mode; /* mode and type of file */ __int8_t di_version; /* inode version */ __int8_t di_format; /* format of di_c data */ __uint16_t di_onlink; /* old number of links to file */ __uint32_t di_uid; /* owner's user id */ __uint32_t di_gid; /* owner's group id */ __uint32_t di_nlink; /* number of links to file */ __uint16_t di_projid_lo; /* lower part of owner's project id */ __uint16_t di_projid_hi; /* higher part of owner's project id */ __uint8_t di_pad[6]; /* unused, zeroed space */ __uint16_t di_flushiter; /* incremented on flush */ xfs_ictimestamp_t di_atime; /* time last accessed */ xfs_ictimestamp_t di_mtime; /* time last modified */ xfs_ictimestamp_t di_ctime; /* time created/inode modified */ xfs_fsize_t di_size; /* number of bytes in file */ xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */ xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ xfs_extnum_t di_nextents; /* number of extents in data fork */ xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/ __uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ __int8_t di_aformat; /* format of attr fork's data */ __uint32_t di_dmevmask; /* DMIG event mask */ __uint16_t di_dmstate; /* DMIG state info */ __uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ __uint32_t di_gen; /* generation number */ /* di_next_unlinked is the only non-core field in the old dinode */ xfs_agino_t di_next_unlinked;/* agi unlinked list ptr */ /* start of the extended dinode, writable fields */ __uint32_t di_crc; /* CRC of the inode */ __uint64_t di_changecount; /* number of attribute changes */ xfs_lsn_t di_lsn; /* flush sequence */ __uint64_t di_flags2; /* more random flags */ __uint8_t di_pad2[16]; /* more padding for future expansion */ /* fields only written to during inode creation */ xfs_ictimestamp_t di_crtime; /* time created */ xfs_ino_t di_ino; /* inode number */ uuid_t di_uuid; /* UUID of the filesystem */ /* structure must be padded to 64 bit alignment */ }; static inline uint xfs_log_dinode_size(int version) { if (version == 3) return sizeof(struct xfs_log_dinode); return offsetof(struct xfs_log_dinode, di_next_unlinked); } /* * Buffer Log Format defintions * * These are the physical dirty bitmap defintions for the log format structure. */ #define XFS_BLF_CHUNK 128 #define XFS_BLF_SHIFT 7 #define BIT_TO_WORD_SHIFT 5 #define NBWORD (NBBY * sizeof(unsigned int)) /* * This flag indicates that the buffer contains on disk inodes * and requires special recovery handling. */ #define XFS_BLF_INODE_BUF (1<<0) /* * This flag indicates that the buffer should not be replayed * during recovery because its blocks are being freed. */ #define XFS_BLF_CANCEL (1<<1) /* * This flag indicates that the buffer contains on disk * user or group dquots and may require special recovery handling. */ #define XFS_BLF_UDQUOT_BUF (1<<2) #define XFS_BLF_PDQUOT_BUF (1<<3) #define XFS_BLF_GDQUOT_BUF (1<<4) /* * This is the structure used to lay out a buf log item in the * log. The data map describes which 128 byte chunks of the buffer * have been logged. */ #define XFS_BLF_DATAMAP_SIZE ((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) / NBWORD) typedef struct xfs_buf_log_format { unsigned short blf_type; /* buf log item type indicator */ unsigned short blf_size; /* size of this item */ ushort blf_flags; /* misc state */ ushort blf_len; /* number of blocks in this buf */ __int64_t blf_blkno; /* starting blkno of this buf */ unsigned int blf_map_size; /* used size of data bitmap in words */ unsigned int blf_data_map[XFS_BLF_DATAMAP_SIZE]; /* dirty bitmap */ } xfs_buf_log_format_t; /* * All buffers now need to tell recovery where the magic number * is so that it can verify and calculate the CRCs on the buffer correctly * once the changes have been replayed into the buffer. * * The type value is held in the upper 5 bits of the blf_flags field, which is * an unsigned 16 bit field. Hence we need to shift it 11 bits up and down. */ #define XFS_BLFT_BITS 5 #define XFS_BLFT_SHIFT 11 #define XFS_BLFT_MASK (((1 << XFS_BLFT_BITS) - 1) << XFS_BLFT_SHIFT) enum xfs_blft { XFS_BLFT_UNKNOWN_BUF = 0, XFS_BLFT_UDQUOT_BUF, XFS_BLFT_PDQUOT_BUF, XFS_BLFT_GDQUOT_BUF, XFS_BLFT_BTREE_BUF, XFS_BLFT_AGF_BUF, XFS_BLFT_AGFL_BUF, XFS_BLFT_AGI_BUF, XFS_BLFT_DINO_BUF, XFS_BLFT_SYMLINK_BUF, XFS_BLFT_DIR_BLOCK_BUF, XFS_BLFT_DIR_DATA_BUF, XFS_BLFT_DIR_FREE_BUF, XFS_BLFT_DIR_LEAF1_BUF, XFS_BLFT_DIR_LEAFN_BUF, XFS_BLFT_DA_NODE_BUF, XFS_BLFT_ATTR_LEAF_BUF, XFS_BLFT_ATTR_RMT_BUF, XFS_BLFT_SB_BUF, XFS_BLFT_MAX_BUF = (1 << XFS_BLFT_BITS), }; static inline void xfs_blft_to_flags(struct xfs_buf_log_format *blf, enum xfs_blft type) { ASSERT(type > XFS_BLFT_UNKNOWN_BUF && type < XFS_BLFT_MAX_BUF); blf->blf_flags &= ~XFS_BLFT_MASK; blf->blf_flags |= ((type << XFS_BLFT_SHIFT) & XFS_BLFT_MASK); } static inline __uint16_t xfs_blft_from_flags(struct xfs_buf_log_format *blf) { return (blf->blf_flags & XFS_BLFT_MASK) >> XFS_BLFT_SHIFT; } /* * EFI/EFD log format definitions */ typedef struct xfs_extent { xfs_fsblock_t ext_start; xfs_extlen_t ext_len; } xfs_extent_t; /* * Since an xfs_extent_t has types (start:64, len: 32) * there are different alignments on 32 bit and 64 bit kernels. * So we provide the different variants for use by a * conversion routine. */ typedef struct xfs_extent_32 { __uint64_t ext_start; __uint32_t ext_len; } __attribute__((packed)) xfs_extent_32_t; typedef struct xfs_extent_64 { __uint64_t ext_start; __uint32_t ext_len; __uint32_t ext_pad; } xfs_extent_64_t; /* * This is the structure used to lay out an efi log item in the * log. The efi_extents field is a variable size array whose * size is given by efi_nextents. */ typedef struct xfs_efi_log_format { __uint16_t efi_type; /* efi log item type */ __uint16_t efi_size; /* size of this item */ __uint32_t efi_nextents; /* # extents to free */ __uint64_t efi_id; /* efi identifier */ xfs_extent_t efi_extents[1]; /* array of extents to free */ } xfs_efi_log_format_t; typedef struct xfs_efi_log_format_32 { __uint16_t efi_type; /* efi log item type */ __uint16_t efi_size; /* size of this item */ __uint32_t efi_nextents; /* # extents to free */ __uint64_t efi_id; /* efi identifier */ xfs_extent_32_t efi_extents[1]; /* array of extents to free */ } __attribute__((packed)) xfs_efi_log_format_32_t; typedef struct xfs_efi_log_format_64 { __uint16_t efi_type; /* efi log item type */ __uint16_t efi_size; /* size of this item */ __uint32_t efi_nextents; /* # extents to free */ __uint64_t efi_id; /* efi identifier */ xfs_extent_64_t efi_extents[1]; /* array of extents to free */ } xfs_efi_log_format_64_t; /* * This is the structure used to lay out an efd log item in the * log. The efd_extents array is a variable size array whose * size is given by efd_nextents; */ typedef struct xfs_efd_log_format { __uint16_t efd_type; /* efd log item type */ __uint16_t efd_size; /* size of this item */ __uint32_t efd_nextents; /* # of extents freed */ __uint64_t efd_efi_id; /* id of corresponding efi */ xfs_extent_t efd_extents[1]; /* array of extents freed */ } xfs_efd_log_format_t; typedef struct xfs_efd_log_format_32 { __uint16_t efd_type; /* efd log item type */ __uint16_t efd_size; /* size of this item */ __uint32_t efd_nextents; /* # of extents freed */ __uint64_t efd_efi_id; /* id of corresponding efi */ xfs_extent_32_t efd_extents[1]; /* array of extents freed */ } __attribute__((packed)) xfs_efd_log_format_32_t; typedef struct xfs_efd_log_format_64 { __uint16_t efd_type; /* efd log item type */ __uint16_t efd_size; /* size of this item */ __uint32_t efd_nextents; /* # of extents freed */ __uint64_t efd_efi_id; /* id of corresponding efi */ xfs_extent_64_t efd_extents[1]; /* array of extents freed */ } xfs_efd_log_format_64_t; /* * Dquot Log format definitions. * * The first two fields must be the type and size fitting into * 32 bits : log_recovery code assumes that. */ typedef struct xfs_dq_logformat { __uint16_t qlf_type; /* dquot log item type */ __uint16_t qlf_size; /* size of this item */ xfs_dqid_t qlf_id; /* usr/grp/proj id : 32 bits */ __int64_t qlf_blkno; /* blkno of dquot buffer */ __int32_t qlf_len; /* len of dquot buffer */ __uint32_t qlf_boffset; /* off of dquot in buffer */ } xfs_dq_logformat_t; /* * log format struct for QUOTAOFF records. * The first two fields must be the type and size fitting into * 32 bits : log_recovery code assumes that. * We write two LI_QUOTAOFF logitems per quotaoff, the last one keeps a pointer * to the first and ensures that the first logitem is taken out of the AIL * only when the last one is securely committed. */ typedef struct xfs_qoff_logformat { unsigned short qf_type; /* quotaoff log item type */ unsigned short qf_size; /* size of this item */ unsigned int qf_flags; /* USR and/or GRP */ char qf_pad[12]; /* padding for future */ } xfs_qoff_logformat_t; /* * Disk quotas status in m_qflags, and also sb_qflags. 16 bits. */ #define XFS_UQUOTA_ACCT 0x0001 /* user quota accounting ON */ #define XFS_UQUOTA_ENFD 0x0002 /* user quota limits enforced */ #define XFS_UQUOTA_CHKD 0x0004 /* quotacheck run on usr quotas */ #define XFS_PQUOTA_ACCT 0x0008 /* project quota accounting ON */ #define XFS_OQUOTA_ENFD 0x0010 /* other (grp/prj) quota limits enforced */ #define XFS_OQUOTA_CHKD 0x0020 /* quotacheck run on other (grp/prj) quotas */ #define XFS_GQUOTA_ACCT 0x0040 /* group quota accounting ON */ /* * Conversion to and from the combined OQUOTA flag (if necessary) * is done only in xfs_sb_qflags_to_disk() and xfs_sb_qflags_from_disk() */ #define XFS_GQUOTA_ENFD 0x0080 /* group quota limits enforced */ #define XFS_GQUOTA_CHKD 0x0100 /* quotacheck run on group quotas */ #define XFS_PQUOTA_ENFD 0x0200 /* project quota limits enforced */ #define XFS_PQUOTA_CHKD 0x0400 /* quotacheck run on project quotas */ #define XFS_ALL_QUOTA_ACCT \ (XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT | XFS_PQUOTA_ACCT) #define XFS_ALL_QUOTA_ENFD \ (XFS_UQUOTA_ENFD | XFS_GQUOTA_ENFD | XFS_PQUOTA_ENFD) #define XFS_ALL_QUOTA_CHKD \ (XFS_UQUOTA_CHKD | XFS_GQUOTA_CHKD | XFS_PQUOTA_CHKD) #define XFS_MOUNT_QUOTA_ALL (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\ XFS_UQUOTA_CHKD|XFS_GQUOTA_ACCT|\ XFS_GQUOTA_ENFD|XFS_GQUOTA_CHKD|\ XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD|\ XFS_PQUOTA_CHKD) /* * Inode create log item structure * * Log recovery assumes the first two entries are the type and size and they fit * in 32 bits. Also in host order (ugh) so they have to be 32 bit aligned so * decoding can be done correctly. */ struct xfs_icreate_log { __uint16_t icl_type; /* type of log format structure */ __uint16_t icl_size; /* size of log format structure */ __be32 icl_ag; /* ag being allocated in */ __be32 icl_agbno; /* start block of inode range */ __be32 icl_count; /* number of inodes to initialise */ __be32 icl_isize; /* size of inodes */ __be32 icl_length; /* length of extent to initialise */ __be32 icl_gen; /* inode generation number to use */ }; #endif /* __XFS_LOG_FORMAT_H__ */