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35 .Nd rewrite disk blocks to new disk locations
42 .Fn lfs_markv "fsid_t *fsidp" "BLOCK_INFO *blkiov" "int blkcnt"
45 rewrites the blocks specified in
47 to new disk locations, for the purposes of grouping them next to one
48 another, or to move them out of a segment to clean it.
49 All fields of the BLOCK_INFO structure must be filled in, except for
53 is not the correct current address for logical block
55 of the file with inode number
57 or if the file's version number does not match
59 the block will not be written to disk, but no error will be returned.
63 argument contains the id of the filesystem to which the inodes and
69 bytes of data to be written into the appropriate block.
72 is specified as LFS_UNUSED_LBN, the inode itself will be rewritten.
76 argument is an array of BLOCK_INFO structures (see below).
79 argument determines the size of the
83 typedef struct block_info {
84 ino_t bi_inode; /* inode # */
85 ufs_daddr_t bi_lbn; /* logical block w/in file */
86 ufs_daddr_t bi_daddr; /* disk address of block */
87 time_t bi_segcreate; /* origin segment create time */
88 int bi_version; /* file version number */
89 void *bi_bp; /* data buffer */
90 int bi_size; /* size of the block (if fragment) */
95 returns 0 on success, or \-1 on error.
103 points outside the process's allocated address space.
106 does not specify a valid filesystem.
108 One or more of the inodes whose blocks were to be written was locked,
109 and its blocks were not rewritten.
118 function call appeared in
123 does not really belong in user space.
124 Among other things it could be used to work around the