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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 | /* * Copyright (c) 2000-2005 Silicon Graphics, Inc. * Copyright (c) 2013 Red Hat, 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_SHARED_H__ #define __XFS_SHARED_H__ /* * Definitions shared between kernel and userspace that don't fit into any other * header file that is shared with userspace. */ struct xfs_ifork; struct xfs_buf; struct xfs_buf_ops; struct xfs_mount; struct xfs_trans; struct xfs_inode; /* * Buffer verifier operations are widely used, including userspace tools */ extern const struct xfs_buf_ops xfs_agf_buf_ops; extern const struct xfs_buf_ops xfs_agi_buf_ops; extern const struct xfs_buf_ops xfs_agf_buf_ops; extern const struct xfs_buf_ops xfs_agfl_buf_ops; extern const struct xfs_buf_ops xfs_allocbt_buf_ops; extern const struct xfs_buf_ops xfs_attr3_leaf_buf_ops; extern const struct xfs_buf_ops xfs_attr3_rmt_buf_ops; extern const struct xfs_buf_ops xfs_bmbt_buf_ops; extern const struct xfs_buf_ops xfs_da3_node_buf_ops; extern const struct xfs_buf_ops xfs_dquot_buf_ops; extern const struct xfs_buf_ops xfs_symlink_buf_ops; extern const struct xfs_buf_ops xfs_agi_buf_ops; extern const struct xfs_buf_ops xfs_inobt_buf_ops; extern const struct xfs_buf_ops xfs_inode_buf_ops; extern const struct xfs_buf_ops xfs_inode_buf_ra_ops; extern const struct xfs_buf_ops xfs_dquot_buf_ops; extern const struct xfs_buf_ops xfs_dquot_buf_ra_ops; extern const struct xfs_buf_ops xfs_sb_buf_ops; extern const struct xfs_buf_ops xfs_sb_quiet_buf_ops; extern const struct xfs_buf_ops xfs_symlink_buf_ops; /* * Transaction types. Used to distinguish types of buffers. These never reach * the log. */ #define XFS_TRANS_SETATTR_NOT_SIZE 1 #define XFS_TRANS_SETATTR_SIZE 2 #define XFS_TRANS_INACTIVE 3 #define XFS_TRANS_CREATE 4 #define XFS_TRANS_CREATE_TRUNC 5 #define XFS_TRANS_TRUNCATE_FILE 6 #define XFS_TRANS_REMOVE 7 #define XFS_TRANS_LINK 8 #define XFS_TRANS_RENAME 9 #define XFS_TRANS_MKDIR 10 #define XFS_TRANS_RMDIR 11 #define XFS_TRANS_SYMLINK 12 #define XFS_TRANS_SET_DMATTRS 13 #define XFS_TRANS_GROWFS 14 #define XFS_TRANS_STRAT_WRITE 15 #define XFS_TRANS_DIOSTRAT 16 /* 17 was XFS_TRANS_WRITE_SYNC */ #define XFS_TRANS_WRITEID 18 #define XFS_TRANS_ADDAFORK 19 #define XFS_TRANS_ATTRINVAL 20 #define XFS_TRANS_ATRUNCATE 21 #define XFS_TRANS_ATTR_SET 22 #define XFS_TRANS_ATTR_RM 23 #define XFS_TRANS_ATTR_FLAG 24 #define XFS_TRANS_CLEAR_AGI_BUCKET 25 #define XFS_TRANS_SB_CHANGE 26 /* * Dummy entries since we use the transaction type to index into the * trans_type[] in xlog_recover_print_trans_head() */ #define XFS_TRANS_DUMMY1 27 #define XFS_TRANS_DUMMY2 28 #define XFS_TRANS_QM_QUOTAOFF 29 #define XFS_TRANS_QM_DQALLOC 30 #define XFS_TRANS_QM_SETQLIM 31 #define XFS_TRANS_QM_DQCLUSTER 32 #define XFS_TRANS_QM_QINOCREATE 33 #define XFS_TRANS_QM_QUOTAOFF_END 34 #define XFS_TRANS_FSYNC_TS 35 #define XFS_TRANS_GROWFSRT_ALLOC 36 #define XFS_TRANS_GROWFSRT_ZERO 37 #define XFS_TRANS_GROWFSRT_FREE 38 #define XFS_TRANS_SWAPEXT 39 #define XFS_TRANS_CHECKPOINT 40 #define XFS_TRANS_ICREATE 41 #define XFS_TRANS_CREATE_TMPFILE 42 #define XFS_TRANS_TYPE_MAX 43 /* new transaction types need to be reflected in xfs_logprint(8) */ #define XFS_TRANS_TYPES \ { XFS_TRANS_SETATTR_NOT_SIZE, "SETATTR_NOT_SIZE" }, \ { XFS_TRANS_SETATTR_SIZE, "SETATTR_SIZE" }, \ { XFS_TRANS_INACTIVE, "INACTIVE" }, \ { XFS_TRANS_CREATE, "CREATE" }, \ { XFS_TRANS_CREATE_TRUNC, "CREATE_TRUNC" }, \ { XFS_TRANS_TRUNCATE_FILE, "TRUNCATE_FILE" }, \ { XFS_TRANS_REMOVE, "REMOVE" }, \ { XFS_TRANS_LINK, "LINK" }, \ { XFS_TRANS_RENAME, "RENAME" }, \ { XFS_TRANS_MKDIR, "MKDIR" }, \ { XFS_TRANS_RMDIR, "RMDIR" }, \ { XFS_TRANS_SYMLINK, "SYMLINK" }, \ { XFS_TRANS_SET_DMATTRS, "SET_DMATTRS" }, \ { XFS_TRANS_GROWFS, "GROWFS" }, \ { XFS_TRANS_STRAT_WRITE, "STRAT_WRITE" }, \ { XFS_TRANS_DIOSTRAT, "DIOSTRAT" }, \ { XFS_TRANS_WRITEID, "WRITEID" }, \ { XFS_TRANS_ADDAFORK, "ADDAFORK" }, \ { XFS_TRANS_ATTRINVAL, "ATTRINVAL" }, \ { XFS_TRANS_ATRUNCATE, "ATRUNCATE" }, \ { XFS_TRANS_ATTR_SET, "ATTR_SET" }, \ { XFS_TRANS_ATTR_RM, "ATTR_RM" }, \ { XFS_TRANS_ATTR_FLAG, "ATTR_FLAG" }, \ { XFS_TRANS_CLEAR_AGI_BUCKET, "CLEAR_AGI_BUCKET" }, \ { XFS_TRANS_SB_CHANGE, "SBCHANGE" }, \ { XFS_TRANS_DUMMY1, "DUMMY1" }, \ { XFS_TRANS_DUMMY2, "DUMMY2" }, \ { XFS_TRANS_QM_QUOTAOFF, "QM_QUOTAOFF" }, \ { XFS_TRANS_QM_DQALLOC, "QM_DQALLOC" }, \ { XFS_TRANS_QM_SETQLIM, "QM_SETQLIM" }, \ { XFS_TRANS_QM_DQCLUSTER, "QM_DQCLUSTER" }, \ { XFS_TRANS_QM_QINOCREATE, "QM_QINOCREATE" }, \ { XFS_TRANS_QM_QUOTAOFF_END, "QM_QOFF_END" }, \ { XFS_TRANS_FSYNC_TS, "FSYNC_TS" }, \ { XFS_TRANS_GROWFSRT_ALLOC, "GROWFSRT_ALLOC" }, \ { XFS_TRANS_GROWFSRT_ZERO, "GROWFSRT_ZERO" }, \ { XFS_TRANS_GROWFSRT_FREE, "GROWFSRT_FREE" }, \ { XFS_TRANS_SWAPEXT, "SWAPEXT" }, \ { XFS_TRANS_CHECKPOINT, "CHECKPOINT" }, \ { XFS_TRANS_ICREATE, "ICREATE" }, \ { XFS_TRANS_CREATE_TMPFILE, "CREATE_TMPFILE" }, \ { XLOG_UNMOUNT_REC_TYPE, "UNMOUNT" } /* * This structure is used to track log items associated with * a transaction. It points to the log item and keeps some * flags to track the state of the log item. It also tracks * the amount of space needed to log the item it describes * once we get to commit processing (see xfs_trans_commit()). */ struct xfs_log_item_desc { struct xfs_log_item *lid_item; struct list_head lid_trans; unsigned char lid_flags; }; #define XFS_LID_DIRTY 0x1 /* log size calculation functions */ int xfs_log_calc_unit_res(struct xfs_mount *mp, int unit_bytes); int xfs_log_calc_minimum_size(struct xfs_mount *); /* * Values for t_flags. */ #define XFS_TRANS_DIRTY 0x01 /* something needs to be logged */ #define XFS_TRANS_SB_DIRTY 0x02 /* superblock is modified */ #define XFS_TRANS_PERM_LOG_RES 0x04 /* xact took a permanent log res */ #define XFS_TRANS_SYNC 0x08 /* make commit synchronous */ #define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */ #define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */ #define XFS_TRANS_FREEZE_PROT 0x40 /* Transaction has elevated writer count in superblock */ /* * Field values for xfs_trans_mod_sb. */ #define XFS_TRANS_SB_ICOUNT 0x00000001 #define XFS_TRANS_SB_IFREE 0x00000002 #define XFS_TRANS_SB_FDBLOCKS 0x00000004 #define XFS_TRANS_SB_RES_FDBLOCKS 0x00000008 #define XFS_TRANS_SB_FREXTENTS 0x00000010 #define XFS_TRANS_SB_RES_FREXTENTS 0x00000020 #define XFS_TRANS_SB_DBLOCKS 0x00000040 #define XFS_TRANS_SB_AGCOUNT 0x00000080 #define XFS_TRANS_SB_IMAXPCT 0x00000100 #define XFS_TRANS_SB_REXTSIZE 0x00000200 #define XFS_TRANS_SB_RBMBLOCKS 0x00000400 #define XFS_TRANS_SB_RBLOCKS 0x00000800 #define XFS_TRANS_SB_REXTENTS 0x00001000 #define XFS_TRANS_SB_REXTSLOG 0x00002000 /* * Here we centralize the specification of XFS meta-data buffer reference count * values. This determines how hard the buffer cache tries to hold onto the * buffer. */ #define XFS_AGF_REF 4 #define XFS_AGI_REF 4 #define XFS_AGFL_REF 3 #define XFS_INO_BTREE_REF 3 #define XFS_ALLOC_BTREE_REF 2 #define XFS_BMAP_BTREE_REF 2 #define XFS_DIR_BTREE_REF 2 #define XFS_INO_REF 2 #define XFS_ATTR_BTREE_REF 1 #define XFS_DQUOT_REF 1 /* * Flags for xfs_trans_ichgtime(). */ #define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */ #define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */ #define XFS_ICHGTIME_CREATE 0x4 /* inode create timestamp */ /* * Symlink decoding/encoding functions */ int xfs_symlink_blocks(struct xfs_mount *mp, int pathlen); int xfs_symlink_hdr_set(struct xfs_mount *mp, xfs_ino_t ino, uint32_t offset, uint32_t size, struct xfs_buf *bp); bool xfs_symlink_hdr_ok(xfs_ino_t ino, uint32_t offset, uint32_t size, struct xfs_buf *bp); void xfs_symlink_local_to_remote(struct xfs_trans *tp, struct xfs_buf *bp, struct xfs_inode *ip, struct xfs_ifork *ifp); #endif /* __XFS_SHARED_H__ */ |