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 */ 27typedef 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 43typedef 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 59typedef 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#define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ 90 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \ 91 XFS_ILOG_UUID | XFS_ILOG_ADATA | \ 92 XFS_ILOG_AEXT | XFS_ILOG_ABROOT) 93 94#define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ 95 XFS_ILOG_DBROOT) 96 97#define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ 98 XFS_ILOG_ABROOT) 99 100#define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \ 101 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \ 102 XFS_ILOG_DEV | XFS_ILOG_UUID | \ 103 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ 104 XFS_ILOG_ABROOT) 105 106static inline int xfs_ilog_fbroot(int w) 107{ 108 return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT); 109} 110 111static inline int xfs_ilog_fext(int w) 112{ 113 return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT); 114} 115 116static inline int xfs_ilog_fdata(int w) 117{ 118 return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA); 119} 120 121#ifdef __KERNEL__ 122 123struct xfs_buf; 124struct xfs_bmbt_rec; 125struct xfs_inode; 126struct xfs_mount; 127 128 129typedef struct xfs_inode_log_item { 130 xfs_log_item_t ili_item; /* common portion */ 131 struct xfs_inode *ili_inode; /* inode ptr */ 132 xfs_lsn_t ili_flush_lsn; /* lsn at last flush */ 133 xfs_lsn_t ili_last_lsn; /* lsn at last transaction */ 134 unsigned short ili_lock_flags; /* lock flags */ 135 unsigned short ili_logged; /* flushed logged data */ 136 unsigned int ili_last_fields; /* fields when flushed */ 137 struct xfs_bmbt_rec *ili_extents_buf; /* array of logged 138 data exts */ 139 struct xfs_bmbt_rec *ili_aextents_buf; /* array of logged 140 attr exts */ 141#ifdef XFS_TRANS_DEBUG 142 int ili_root_size; 143 char *ili_orig_root; 144#endif 145 xfs_inode_log_format_t ili_format; /* logged structure */ 146} xfs_inode_log_item_t; 147 148 149static inline int xfs_inode_clean(xfs_inode_t *ip) 150{ 151 return (!ip->i_itemp || 152 !(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) && 153 !ip->i_update_core; 154} 155 156extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *); 157extern void xfs_inode_item_destroy(struct xfs_inode *); 158extern void xfs_iflush_done(struct xfs_buf *, struct xfs_log_item *); 159extern void xfs_istale_done(struct xfs_buf *, struct xfs_log_item *); 160extern void xfs_iflush_abort(struct xfs_inode *); 161extern int xfs_inode_item_format_convert(xfs_log_iovec_t *, 162 xfs_inode_log_format_t *); 163 164#endif /* __KERNEL__ */ 165 166#endif /* __XFS_INODE_ITEM_H__ */ 167