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 * Convention for naming inode log item versions : The current version 28 * is always named XFS_LI_INODE. When an inode log item gets superseded, 29 * add the latest version of IRIX that will generate logs with that item 30 * to the version name. 31 * 32 * -Version 1 of this structure (XFS_LI_5_3_INODE) included up to the first 33 * union (ilf_u) field. This was released with IRIX 5.3-XFS. 34 * -Version 2 of this structure (XFS_LI_6_1_INODE) is currently the entire 35 * structure. This was released with IRIX 6.0.1-XFS and IRIX 6.1. 36 * -Version 3 of this structure (XFS_LI_INODE) is the same as version 2 37 * so a new structure definition wasn't necessary. However, we had 38 * to add a new type because the inode cluster size changed from 4K 39 * to 8K and the version number had to be rev'ved to keep older kernels 40 * from trying to recover logs with the 8K buffers in them. The logging 41 * code can handle recovery on different-sized clusters now so hopefully 42 * this'll be the last time we need to change the inode log item just 43 * for a change in the inode cluster size. This new version was 44 * released with IRIX 6.2. 45 */ 46 typedef struct xfs_inode_log_format { 47 unsigned short ilf_type; /* inode log item type */ 48 unsigned short ilf_size; /* size of this item */ 49 uint ilf_fields; /* flags for fields logged */ 50 ushort ilf_asize; /* size of attr d/ext/root */ 51 ushort ilf_dsize; /* size of data/ext/root */ 52 xfs_ino_t ilf_ino; /* inode number */ 53 union { 54 xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/ 55 uuid_t ilfu_uuid; /* mount point value */ 56 } ilf_u; 57 __int64_t ilf_blkno; /* blkno of inode buffer */ 58 int ilf_len; /* len of inode buffer */ 59 int ilf_boffset; /* off of inode in buffer */ 60 } xfs_inode_log_format_t; 61 62 /* Initial version shipped with IRIX 5.3-XFS */ 63 typedef struct xfs_inode_log_format_v1 { 64 unsigned short ilf_type; /* inode log item type */ 65 unsigned short ilf_size; /* size of this item */ 66 uint ilf_fields; /* flags for fields logged */ 67 uint ilf_dsize; /* size of data/ext/root */ 68 xfs_ino_t ilf_ino; /* inode number */ 69 union { 70 xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/ 71 uuid_t ilfu_uuid; /* mount point value */ 72 } ilf_u; 73 } xfs_inode_log_format_t_v1; 74 75 /* 76 * Flags for xfs_trans_log_inode flags field. 77 */ 78 #define XFS_ILOG_CORE 0x001 /* log standard inode fields */ 79 #define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */ 80 #define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */ 81 #define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */ 82 #define XFS_ILOG_DEV 0x010 /* log the dev field */ 83 #define XFS_ILOG_UUID 0x020 /* log the uuid field */ 84 #define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */ 85 #define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */ 86 #define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */ 87 88 #define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ 89 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \ 90 XFS_ILOG_UUID | XFS_ILOG_ADATA | \ 91 XFS_ILOG_AEXT | XFS_ILOG_ABROOT) 92 93 #define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ 94 XFS_ILOG_DBROOT) 95 96 #define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ 97 XFS_ILOG_ABROOT) 98 99 #define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \ 100 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \ 101 XFS_ILOG_DEV | XFS_ILOG_UUID | \ 102 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ 103 XFS_ILOG_ABROOT) 104 105 #define XFS_ILI_HOLD 0x1 106 #define XFS_ILI_IOLOCKED_EXCL 0x2 107 #define XFS_ILI_IOLOCKED_SHARED 0x4 108 109 #define XFS_ILI_IOLOCKED_ANY (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED) 110 111 112 #ifdef __KERNEL__ 113 114 struct xfs_buf; 115 struct xfs_bmbt_rec_64; 116 struct xfs_inode; 117 struct xfs_mount; 118 119 120 typedef struct xfs_inode_log_item { 121 xfs_log_item_t ili_item; /* common portion */ 122 struct xfs_inode *ili_inode; /* inode ptr */ 123 xfs_lsn_t ili_flush_lsn; /* lsn at last flush */ 124 xfs_lsn_t ili_last_lsn; /* lsn at last transaction */ 125 unsigned short ili_ilock_recur; /* lock recursion count */ 126 unsigned short ili_iolock_recur; /* lock recursion count */ 127 unsigned short ili_flags; /* misc flags */ 128 unsigned short ili_logged; /* flushed logged data */ 129 unsigned int ili_last_fields; /* fields when flushed */ 130 struct xfs_bmbt_rec_64 *ili_extents_buf; /* array of logged 131 data exts */ 132 struct xfs_bmbt_rec_64 *ili_aextents_buf; /* array of logged 133 attr exts */ 134 unsigned int ili_pushbuf_flag; /* one bit used in push_ail */ 135 136 #ifdef DEBUG 137 uint64_t ili_push_owner; /* one who sets pushbuf_flag 138 above gets to push the buf */ 139 #endif 140 #ifdef XFS_TRANS_DEBUG 141 int ili_root_size; 142 char *ili_orig_root; 143 #endif 144 xfs_inode_log_format_t ili_format; /* logged structure */ 145 } xfs_inode_log_item_t; 146 147 148 #define XFS_ILOG_FDATA(w) xfs_ilog_fdata(w) 149 static inline int xfs_ilog_fdata(int w) 150 { 151 return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA); 152 } 153 154 #endif /* __KERNEL__ */ 155 156 #define XFS_ILOG_FBROOT(w) xfs_ilog_fbroot(w) 157 static inline int xfs_ilog_fbroot(int w) 158 { 159 return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT); 160 } 161 162 #define XFS_ILOG_FEXT(w) xfs_ilog_fext(w) 163 static inline int xfs_ilog_fext(int w) 164 { 165 return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT); 166 } 167 168 #ifdef __KERNEL__ 169 170 extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *); 171 extern void xfs_inode_item_destroy(struct xfs_inode *); 172 extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *); 173 extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *); 174 extern void xfs_iflush_abort(struct xfs_inode *); 175 176 #endif /* __KERNEL__ */ 177 178 #endif /* __XFS_INODE_ITEM_H__ */ 179