1 /* 2 * Copyright (c) 2000,2005 Silicon Graphics, Inc. 3 * All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 #ifndef __XFS_INODE_ITEM_H__ 19 #define __XFS_INODE_ITEM_H__ 20 21 /* 22 * This is the structure used to lay out an inode log item in the 23 * log. The size of the inline data/extents/b-tree root to be logged 24 * (if any) is indicated in the ilf_dsize field. Changes to this structure 25 * must be added on to the end. 26 */ 27 typedef struct xfs_inode_log_format { 28 __uint16_t ilf_type; /* inode log item type */ 29 __uint16_t ilf_size; /* size of this item */ 30 __uint32_t ilf_fields; /* flags for fields logged */ 31 __uint16_t ilf_asize; /* size of attr d/ext/root */ 32 __uint16_t ilf_dsize; /* size of data/ext/root */ 33 __uint64_t ilf_ino; /* inode number */ 34 union { 35 __uint32_t ilfu_rdev; /* rdev value for dev inode*/ 36 uuid_t ilfu_uuid; /* mount point value */ 37 } ilf_u; 38 __int64_t ilf_blkno; /* blkno of inode buffer */ 39 __int32_t ilf_len; /* len of inode buffer */ 40 __int32_t ilf_boffset; /* off of inode in buffer */ 41 } xfs_inode_log_format_t; 42 43 typedef struct xfs_inode_log_format_32 { 44 __uint16_t ilf_type; /* inode log item type */ 45 __uint16_t ilf_size; /* size of this item */ 46 __uint32_t ilf_fields; /* flags for fields logged */ 47 __uint16_t ilf_asize; /* size of attr d/ext/root */ 48 __uint16_t ilf_dsize; /* size of data/ext/root */ 49 __uint64_t ilf_ino; /* inode number */ 50 union { 51 __uint32_t ilfu_rdev; /* rdev value for dev inode*/ 52 uuid_t ilfu_uuid; /* mount point value */ 53 } ilf_u; 54 __int64_t ilf_blkno; /* blkno of inode buffer */ 55 __int32_t ilf_len; /* len of inode buffer */ 56 __int32_t ilf_boffset; /* off of inode in buffer */ 57 } __attribute__((packed)) xfs_inode_log_format_32_t; 58 59 typedef struct xfs_inode_log_format_64 { 60 __uint16_t ilf_type; /* inode log item type */ 61 __uint16_t ilf_size; /* size of this item */ 62 __uint32_t ilf_fields; /* flags for fields logged */ 63 __uint16_t ilf_asize; /* size of attr d/ext/root */ 64 __uint16_t ilf_dsize; /* size of data/ext/root */ 65 __uint32_t ilf_pad; /* pad for 64 bit boundary */ 66 __uint64_t ilf_ino; /* inode number */ 67 union { 68 __uint32_t ilfu_rdev; /* rdev value for dev inode*/ 69 uuid_t ilfu_uuid; /* mount point value */ 70 } ilf_u; 71 __int64_t ilf_blkno; /* blkno of inode buffer */ 72 __int32_t ilf_len; /* len of inode buffer */ 73 __int32_t ilf_boffset; /* off of inode in buffer */ 74 } xfs_inode_log_format_64_t; 75 76 /* 77 * Flags for xfs_trans_log_inode flags field. 78 */ 79 #define XFS_ILOG_CORE 0x001 /* log standard inode fields */ 80 #define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */ 81 #define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */ 82 #define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */ 83 #define XFS_ILOG_DEV 0x010 /* log the dev field */ 84 #define XFS_ILOG_UUID 0x020 /* log the uuid field */ 85 #define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */ 86 #define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */ 87 #define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */ 88 89 90 /* 91 * The timestamps are dirty, but not necessarily anything else in the inode 92 * core. Unlike the other fields above this one must never make it to disk 93 * in the ilf_fields of the inode_log_format, but is purely store in-memory in 94 * ili_fields in the inode_log_item. 95 */ 96 #define XFS_ILOG_TIMESTAMP 0x4000 97 98 #define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ 99 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \ 100 XFS_ILOG_UUID | XFS_ILOG_ADATA | \ 101 XFS_ILOG_AEXT | XFS_ILOG_ABROOT) 102 103 #define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ 104 XFS_ILOG_DBROOT) 105 106 #define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ 107 XFS_ILOG_ABROOT) 108 109 #define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \ 110 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \ 111 XFS_ILOG_DEV | XFS_ILOG_UUID | \ 112 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ 113 XFS_ILOG_ABROOT | XFS_ILOG_TIMESTAMP) 114 115 static inline int xfs_ilog_fbroot(int w) 116 { 117 return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT); 118 } 119 120 static inline int xfs_ilog_fext(int w) 121 { 122 return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT); 123 } 124 125 static inline int xfs_ilog_fdata(int w) 126 { 127 return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA); 128 } 129 130 #ifdef __KERNEL__ 131 132 struct xfs_buf; 133 struct xfs_bmbt_rec; 134 struct xfs_inode; 135 struct xfs_mount; 136 137 138 typedef struct xfs_inode_log_item { 139 xfs_log_item_t ili_item; /* common portion */ 140 struct xfs_inode *ili_inode; /* inode ptr */ 141 xfs_lsn_t ili_flush_lsn; /* lsn at last flush */ 142 xfs_lsn_t ili_last_lsn; /* lsn at last transaction */ 143 unsigned short ili_lock_flags; /* lock flags */ 144 unsigned short ili_logged; /* flushed logged data */ 145 unsigned int ili_last_fields; /* fields when flushed */ 146 unsigned int ili_fields; /* fields to be logged */ 147 struct xfs_bmbt_rec *ili_extents_buf; /* array of logged 148 data exts */ 149 struct xfs_bmbt_rec *ili_aextents_buf; /* array of logged 150 attr exts */ 151 xfs_inode_log_format_t ili_format; /* logged structure */ 152 } xfs_inode_log_item_t; 153 154 155 static inline int xfs_inode_clean(xfs_inode_t *ip) 156 { 157 return !ip->i_itemp || !(ip->i_itemp->ili_fields & XFS_ILOG_ALL); 158 } 159 160 extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *); 161 extern void xfs_inode_item_destroy(struct xfs_inode *); 162 extern void xfs_iflush_done(struct xfs_buf *, struct xfs_log_item *); 163 extern void xfs_istale_done(struct xfs_buf *, struct xfs_log_item *); 164 extern void xfs_iflush_abort(struct xfs_inode *, bool); 165 extern int xfs_inode_item_format_convert(xfs_log_iovec_t *, 166 xfs_inode_log_format_t *); 167 168 #endif /* __KERNEL__ */ 169 170 #endif /* __XFS_INODE_ITEM_H__ */ 171