/*
* Compare the original cylinder group inode and block bitmaps with the
* updated cylinder group inode and block bitmaps. Free inodes and blocks
* that have been added. Complain if any previously freed inodes blocks
* are now allocated.
*/
void
update_maps(
struct cg *oldcg, /* cylinder group of claimed allocations */
struct cg *newcg, /* cylinder group of determined allocations */
int usesysctl) /* 1 => use sysctl interface to update maps */
{
int inomapsize, excessdirs;
struct fs *fs = &sblock;
inomapsize = howmany(fs->fs_ipg, CHAR_BIT);
excessdirs = oldcg->cg_cs.cs_ndir - newcg->cg_cs.cs_ndir;
if (excessdirs < 0) {
pfatal("LOST %d DIRECTORIES\n", -excessdirs);
excessdirs = 0;
}
if (excessdirs > 0)
check_maps(cg_inosused(newcg), cg_inosused(oldcg), inomapsize,
oldcg->cg_cgx * (ufs2_daddr_t)fs->fs_ipg, "DIR", freedirs,
0, excessdirs, usesysctl);
check_maps(cg_inosused(newcg), cg_inosused(oldcg), inomapsize,
oldcg->cg_cgx * (ufs2_daddr_t)fs->fs_ipg, "FILE", freefiles,
excessdirs, fs->fs_ipg, usesysctl);
check_maps(cg_blksfree(oldcg), cg_blksfree(newcg),
howmany(fs->fs_fpg, CHAR_BIT),
oldcg->cg_cgx * (ufs2_daddr_t)fs->fs_fpg, "FRAG",
freeblks, 0, fs->fs_fpg, usesysctl);
}
/* Check returned segments are same state with buffer */
static int check_map_region(struct inode *inode, block_t start, unsigned count,
struct block_segment *seg, unsigned seg_max)
{
int segs;
segs = map_region(inode, start, count, seg, seg_max, MAP_READ);
if (segs > 0)
check_maps(inode, start, seg, segs);
return segs;
}
