/* * Replace the inode number of a directory entry. */ int xfs_dir_replace( xfs_trans_t *tp, xfs_inode_t *dp, char *name, /* name of entry to replace */ int namelen, xfs_ino_t inum, /* new inode number */ xfs_fsblock_t *first, /* bmap's firstblock */ xfs_bmap_free_t *flist, /* bmap's freeblock list */ xfs_extlen_t total) /* bmap's total block count */ { xfs_da_args_t args; int rval; int v; /* type-checking value */ ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum))) return rval; args.name = name; args.namelen = namelen; args.hashval = xfs_da_hashname(name, namelen); args.inumber = inum; args.dp = dp; args.firstblock = first; args.flist = flist; args.total = total; args.whichfork = XFS_DATA_FORK; args.trans = tp; args.justcheck = args.addname = args.oknoent = 0; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_replace(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) return rval; else if (v) rval = xfs_dir2_block_replace(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) return rval; else if (v) rval = xfs_dir2_leaf_replace(&args); else rval = xfs_dir2_node_replace(&args); return rval; }
/* * Replace the inode number of a directory entry. */ int xfs_dir_replace( xfs_trans_t *tp, xfs_inode_t *dp, struct xfs_name *name, /* name of entry to replace */ xfs_ino_t inum, /* new inode number */ xfs_fsblock_t *first, /* bmap's firstblock */ xfs_bmap_free_t *flist, /* bmap's freeblock list */ xfs_extlen_t total) /* bmap's total block count */ { xfs_da_args_t args; int rval; int v; /* type-checking value */ ASSERT(S_ISDIR(dp->i_d.di_mode)); if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum))) return rval; memset(&args, 0, sizeof(xfs_da_args_t)); args.name = name->name; args.namelen = name->len; args.filetype = name->type; args.hashval = dp->i_mount->m_dirnameops->hashname(name); args.inumber = inum; args.dp = dp; args.firstblock = first; args.flist = flist; args.total = total; args.whichfork = XFS_DATA_FORK; args.trans = tp; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) rval = xfs_dir2_sf_replace(&args); else if ((rval = xfs_dir2_isblock(tp, dp, &v))) return rval; else if (v) rval = xfs_dir2_block_replace(&args); else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) return rval; else if (v) rval = xfs_dir2_leaf_replace(&args); else rval = xfs_dir2_node_replace(&args); return rval; }
/* * Replace the inode number of an entry in a shortform directory. */ int /* error */ xfs_dir2_sf_replace( xfs_da_args_t *args) /* operation arguments */ { xfs_inode_t *dp; /* incore directory inode */ int i; /* entry index */ #if XFS_BIG_INUMS || defined(DEBUG) xfs_ino_t ino=0; /* entry old inode number */ #endif #if XFS_BIG_INUMS int i8elevated; /* sf_toino8 set i8count=1 */ #endif xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ trace_xfs_dir2_sf_replace(args); dp = args->dp; ASSERT(dp->i_df.if_flags & XFS_IFINLINE); /* * Bail out if the shortform directory is way too small. */ if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) { ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount)); return XFS_ERROR(EIO); } ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); ASSERT(dp->i_df.if_u1.if_data != NULL); sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); #if XFS_BIG_INUMS /* * New inode number is large, and need to convert to 8-byte inodes. */ if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->i8count == 0) { int error; /* error return value */ int newsize; /* new inode size */ newsize = dp->i_df.if_bytes + (sfp->count + 1) * ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)); /* * Won't fit as shortform, convert to block then do replace. */ if (newsize > XFS_IFORK_DSIZE(dp)) { error = xfs_dir2_sf_to_block(args); if (error) { return error; } return xfs_dir2_block_replace(args); } /* * Still fits, convert to 8-byte now. */ xfs_dir2_sf_toino8(args); i8elevated = 1; sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; } else i8elevated = 0; #endif ASSERT(args->namelen != 1 || args->name[0] != '.'); /* * Replace ..'s entry. */ if (args->namelen == 2 && args->name[0] == '.' && args->name[1] == '.') { #if XFS_BIG_INUMS || defined(DEBUG) ino = xfs_dir2_sf_get_parent_ino(sfp); ASSERT(args->inumber != ino); #endif xfs_dir2_sf_put_parent_ino(sfp, args->inumber); } /* * Normal entry, look for the name. */ else { for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) { if (xfs_da_compname(args, sfep->name, sfep->namelen) == XFS_CMP_EXACT) { #if XFS_BIG_INUMS || defined(DEBUG) ino = xfs_dir2_sfe_get_ino(sfp, sfep); ASSERT(args->inumber != ino); #endif xfs_dir2_sfe_put_ino(sfp, sfep, args->inumber); break; } } /* * Didn't find it. */ if (i == sfp->count) { ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); #if XFS_BIG_INUMS if (i8elevated) xfs_dir2_sf_toino4(args); #endif return XFS_ERROR(ENOENT); } } #if XFS_BIG_INUMS /* * See if the old number was large, the new number is small. */ if (ino > XFS_DIR2_MAX_SHORT_INUM && args->inumber <= XFS_DIR2_MAX_SHORT_INUM) { /* * And the old count was one, so need to convert to small. */ if (sfp->i8count == 1) xfs_dir2_sf_toino4(args); else sfp->i8count--; } /* * See if the old number was small, the new number is large. */ if (ino <= XFS_DIR2_MAX_SHORT_INUM && args->inumber > XFS_DIR2_MAX_SHORT_INUM) { /* * add to the i8count unless we just converted to 8-byte * inodes (which does an implied i8count = 1) */ ASSERT(sfp->i8count != 0); if (!i8elevated) sfp->i8count++; } #endif xfs_dir2_sf_check(args); xfs_trans_log_inode(args->trans, dp, XFS_ILOG_DDATA); return 0; }
/* * Replace the inode number of a directory entry. */ int xfs_dir_replace( xfs_trans_t *tp, xfs_inode_t *dp, struct xfs_name *name, /* name of entry to replace */ xfs_ino_t inum, /* new inode number */ xfs_fsblock_t *first, /* bmap's firstblock */ xfs_bmap_free_t *flist, /* bmap's freeblock list */ xfs_extlen_t total) /* bmap's total block count */ { struct xfs_da_args *args; int rval; int v; /* type-checking value */ ASSERT(S_ISDIR(dp->i_d.di_mode)); rval = xfs_dir_ino_validate(tp->t_mountp, inum); if (rval) return rval; args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); if (!args) return -ENOMEM; args->geo = dp->i_mount->m_dir_geo; args->name = name->name; args->namelen = name->len; args->filetype = name->type; args->hashval = dp->i_mount->m_dirnameops->hashname(name); args->inumber = inum; args->dp = dp; args->firstblock = first; args->flist = flist; args->total = total; args->whichfork = XFS_DATA_FORK; args->trans = tp; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_replace(args); goto out_free; } rval = xfs_dir2_isblock(args, &v); if (rval) goto out_free; if (v) { rval = xfs_dir2_block_replace(args); goto out_free; } rval = xfs_dir2_isleaf(args, &v); if (rval) goto out_free; if (v) rval = xfs_dir2_leaf_replace(args); else rval = xfs_dir2_node_replace(args); out_free: kmem_free(args); return rval; }
int /* */ xfs_dir2_sf_replace( xfs_da_args_t *args) /* */ { xfs_inode_t *dp; /* */ int i; /* */ #if XFS_BIG_INUMS || defined(DEBUG) xfs_ino_t ino=0; /* */ #endif #if XFS_BIG_INUMS int i8elevated; /* */ #endif xfs_dir2_sf_entry_t *sfep; /* */ xfs_dir2_sf_hdr_t *sfp; /* */ trace_xfs_dir2_sf_replace(args); dp = args->dp; ASSERT(dp->i_df.if_flags & XFS_IFINLINE); /* */ if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) { ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount)); return XFS_ERROR(EIO); } ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); ASSERT(dp->i_df.if_u1.if_data != NULL); sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); #if XFS_BIG_INUMS /* */ if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->i8count == 0) { int error; /* */ int newsize; /* */ newsize = dp->i_df.if_bytes + (sfp->count + 1) * ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)); /* */ if (newsize > XFS_IFORK_DSIZE(dp)) { error = xfs_dir2_sf_to_block(args); if (error) { return error; } return xfs_dir2_block_replace(args); } /* */ xfs_dir2_sf_toino8(args); i8elevated = 1; sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; } else i8elevated = 0; #endif ASSERT(args->namelen != 1 || args->name[0] != '.'); /* */ if (args->namelen == 2 && args->name[0] == '.' && args->name[1] == '.') { #if XFS_BIG_INUMS || defined(DEBUG) ino = xfs_dir2_sf_get_parent_ino(sfp); ASSERT(args->inumber != ino); #endif xfs_dir2_sf_put_parent_ino(sfp, args->inumber); } /* */ else { for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) { if (xfs_da_compname(args, sfep->name, sfep->namelen) == XFS_CMP_EXACT) { #if XFS_BIG_INUMS || defined(DEBUG) ino = xfs_dir2_sfe_get_ino(sfp, sfep); ASSERT(args->inumber != ino); #endif xfs_dir2_sfe_put_ino(sfp, sfep, args->inumber); break; } } /* */ if (i == sfp->count) { ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); #if XFS_BIG_INUMS if (i8elevated) xfs_dir2_sf_toino4(args); #endif return XFS_ERROR(ENOENT); } } #if XFS_BIG_INUMS /* */ if (ino > XFS_DIR2_MAX_SHORT_INUM && args->inumber <= XFS_DIR2_MAX_SHORT_INUM) { /* */ if (sfp->i8count == 1) xfs_dir2_sf_toino4(args); else sfp->i8count--; } /* */ if (ino <= XFS_DIR2_MAX_SHORT_INUM && args->inumber > XFS_DIR2_MAX_SHORT_INUM) { /* */ ASSERT(sfp->i8count != 0); if (!i8elevated) sfp->i8count++; } #endif xfs_dir2_sf_check(args); xfs_trans_log_inode(args->trans, dp, XFS_ILOG_DDATA); return 0; }