static int
hammer_vfs_statvfs(struct mount *mp, struct statvfs *sbp, struct ucred *cred)
{
struct hammer_mount *hmp = (void *)mp->mnt_data;
hammer_volume_t volume;
hammer_volume_ondisk_t ondisk;
int error;
int64_t bfree;
int64_t breserved;
lwkt_gettoken(&hmp->fs_token);
volume = hammer_get_root_volume(hmp, &error);
if (error) {
lwkt_reltoken(&hmp->fs_token);
return(error);
}
ondisk = volume->ondisk;
/*
* Basic stats
*/
_hammer_checkspace(hmp, HAMMER_CHKSPC_WRITE, &breserved);
mp->mnt_vstat.f_files = ondisk->vol0_stat_inodes;
bfree = ondisk->vol0_stat_freebigblocks * HAMMER_LARGEBLOCK_SIZE;
hammer_rel_volume(volume, 0);
mp->mnt_vstat.f_bfree = (bfree - breserved) / HAMMER_BUFSIZE;
mp->mnt_vstat.f_bavail = mp->mnt_vstat.f_bfree;
if (mp->mnt_vstat.f_files < 0)
mp->mnt_vstat.f_files = 0;
*sbp = mp->mnt_vstat;
lwkt_reltoken(&hmp->fs_token);
return(0);
}
/*
* Get information
*/
static
int
hammer_ioc_get_info(hammer_transaction_t trans, struct hammer_ioc_info *info)
{
hammer_volume_ondisk_t ondisk = trans->hmp->rootvol->ondisk;
hammer_mount_t hmp = trans->hmp;
/* Fill the structure with the necessary information */
_hammer_checkspace(hmp, HAMMER_CHKSPC_WRITE, &info->rsvbigblocks);
info->rsvbigblocks = info->rsvbigblocks >> HAMMER_BIGBLOCK_BITS;
strlcpy(info->vol_label, ondisk->vol_label, sizeof(ondisk->vol_label));
info->vol_fsid = hmp->fsid;
info->vol_fstype = ondisk->vol_fstype;
info->version = hmp->version;
info->inodes = ondisk->vol0_stat_inodes;
info->bigblocks = ondisk->vol0_stat_bigblocks;
info->freebigblocks = ondisk->vol0_stat_freebigblocks;
info->nvolumes = hmp->nvolumes;
info->rootvol = ondisk->vol_rootvol;
return 0;
}
