/* Called by the kernel when asking for stats */
static int ntfs_statfs(struct super_block *sb, struct statfs *sf)
{
struct inode *mft;
ntfs_volume *vol;
ntfs_u64 size;
int error;
ntfs_debug(DEBUG_OTHER, "ntfs_statfs\n");
vol=NTFS_SB2VOL(sb);
sf->f_type=NTFS_SUPER_MAGIC;
sf->f_bsize=vol->clustersize;
error = ntfs_get_volumesize( NTFS_SB2VOL( sb ), &size );
if( error )
return -error;
sf->f_blocks = size; /* volumesize is in clusters */
sf->f_bfree=ntfs_get_free_cluster_count(vol->bitmap);
sf->f_bavail=sf->f_bfree;
mft=iget(sb,FILE_MFT);
if (!mft)
return -EIO;
/* So ... we lie... thus this following cast of loff_t value
is ok here.. */
sf->f_files = (unsigned long)mft->i_size / vol->mft_recordsize;
iput(mft);
/* should be read from volume */
sf->f_namelen=255;
return 0;
}
/* Called by the kernel when asking for stats. */
static int ntfs_statfs(struct super_block *sb, struct statfs *sf)
{
struct inode *mft;
ntfs_volume *vol;
__s64 size;
int error;
ntfs_debug(DEBUG_OTHER, "ntfs_statfs\n");
vol = NTFS_SB2VOL(sb);
sf->f_type = NTFS_SUPER_MAGIC;
sf->f_bsize = vol->cluster_size;
error = ntfs_get_volumesize(NTFS_SB2VOL(sb), &size);
if (error)
return error;
sf->f_blocks = size; /* Volumesize is in clusters. */
size = (__s64)ntfs_get_free_cluster_count(vol->bitmap);
/* Just say zero if the call failed. */
if (size < 0LL)
size = 0;
sf->f_bfree = sf->f_bavail = size;
ntfs_debug(DEBUG_OTHER, "ntfs_statfs: calling mft = iget(sb, "
"FILE_Mft)\n");
mft = iget(sb, FILE_Mft);
ntfs_debug(DEBUG_OTHER, "ntfs_statfs: iget(sb, FILE_Mft) returned "
"0x%x\n", mft);
if (!mft)
return -EIO;
sf->f_files = mft->i_size >> vol->mft_record_size_bits;
ntfs_debug(DEBUG_OTHER, "ntfs_statfs: calling iput(mft)\n");
iput(mft);
/* Should be read from volume. */
sf->f_namelen = 255;
return 0;
}
/* Called by the kernel when asking for stats */
static int ntfs_statfs(struct super_block *sb, struct statfs *sf, int bufsize)
{
struct statfs fs;
struct inode *mft;
ntfs_volume *vol;
int error;
ntfs_debug(DEBUG_OTHER, "ntfs_statfs\n");
vol=NTFS_SB2VOL(sb);
memset(&fs,0,sizeof(fs));
fs.f_type=NTFS_SUPER_MAGIC;
fs.f_bsize=vol->clustersize;
error = ntfs_get_volumesize( NTFS_SB2VOL( sb ), &fs.f_blocks );
if( error )
return -error;
fs.f_bfree=ntfs_get_free_cluster_count(vol->bitmap);
fs.f_bavail=fs.f_bfree;
/* Number of files is limited by free space only, so we lie here */
fs.f_ffree=0;
mft=iget(sb,FILE_MFT);
fs.f_files=mft->i_size/vol->mft_recordsize;
iput(mft);
/* should be read from volume */
fs.f_namelen=255;
copy_to_user(sf,&fs,bufsize);
return 0;
}
