/*
* Get file system statistics.
*/
int
ffs_statfs(struct mount *mp, struct statfs *sbp, struct proc *p)
{
struct ufsmount *ump;
struct fs *fs;
ump = VFSTOUFS(mp);
fs = ump->um_fs;
#ifdef FFS2
if (fs->fs_magic != FS_MAGIC && fs->fs_magic != FS_UFS2_MAGIC)
panic("ffs_statfs");
#else
if (fs->fs_magic != FS_MAGIC)
panic("ffs_statfs");
#endif /* FFS2 */
sbp->f_bsize = fs->fs_fsize;
sbp->f_iosize = fs->fs_bsize;
sbp->f_blocks = fs->fs_dsize;
sbp->f_bfree = fs->fs_cstotal.cs_nbfree * fs->fs_frag +
fs->fs_cstotal.cs_nffree;
sbp->f_bavail = sbp->f_bfree -
((int64_t)fs->fs_dsize * fs->fs_minfree / 100);
sbp->f_files = fs->fs_ncg * fs->fs_ipg - ROOTINO;
sbp->f_ffree = fs->fs_cstotal.cs_nifree;
sbp->f_favail = sbp->f_ffree;
copy_statfs_info(sbp, mp);
return (0);
}
/*
* Get file system statistics.
*/
int
ext2fs_statfs(struct mount *mp, struct statfs *sbp, struct proc *p)
{
struct ufsmount *ump;
struct m_ext2fs *fs;
u_int32_t overhead, overhead_per_group;
int i, ngroups;
ump = VFSTOUFS(mp);
fs = ump->um_e2fs;
if (fs->e2fs.e2fs_magic != E2FS_MAGIC)
panic("ext2fs_statfs");
/*
* Compute the overhead (FS structures)
*/
overhead_per_group = 1 /* block bitmap */ + 1 /* inode bitmap */ +
fs->e2fs_itpg;
overhead = fs->e2fs.e2fs_first_dblock +
fs->e2fs_ncg * overhead_per_group;
if (fs->e2fs.e2fs_rev > E2FS_REV0 &&
fs->e2fs.e2fs_features_rocompat & EXT2F_ROCOMPAT_SPARSESUPER) {
for (i = 0, ngroups = 0; i < fs->e2fs_ncg; i++) {
if (cg_has_sb(i))
ngroups++;
}
} else {
ngroups = fs->e2fs_ncg;
}
overhead += ngroups * (1 + fs->e2fs_ngdb);
sbp->f_bsize = fs->e2fs_bsize;
sbp->f_iosize = fs->e2fs_bsize;
sbp->f_blocks = fs->e2fs.e2fs_bcount - overhead;
sbp->f_bfree = fs->e2fs.e2fs_fbcount;
sbp->f_bavail = sbp->f_bfree - fs->e2fs.e2fs_rbcount;
sbp->f_files = fs->e2fs.e2fs_icount;
sbp->f_favail = sbp->f_ffree = fs->e2fs.e2fs_ficount;
copy_statfs_info(sbp, mp);
return (0);
}
