static int libzfs_update_stats(zfs_handle_t *p_zfs)
{
objset_t *p_os;
nvlist_t *pnv_allprops, *pnv_userprops;
int i_error;
if((i_error = dmu_objset_hold(p_zfs->zfs_name, FTAG, &p_os)))
return i_error;
dmu_objset_fast_stat(p_os, &p_zfs->zfs_dmustats);
if((i_error = dsl_prop_get_all(p_os, &pnv_allprops)) == 0)
{
dmu_objset_stats(p_os, pnv_allprops);
if(!p_zfs->zfs_dmustats.dds_inconsistent)
{
if(dmu_objset_type(p_os) == DMU_OST_ZVOL)
assert(zvol_get_stats(p_os, pnv_allprops) == 0);
}
}
dmu_objset_rele(p_os, FTAG);
// Continue processing the stats
if((pnv_userprops = process_user_props(p_zfs, pnv_allprops)) == NULL)
{
nvlist_free(pnv_allprops);
return 1;
}
nvlist_free(p_zfs->zfs_props);
nvlist_free(p_zfs->zfs_user_props);
p_zfs->zfs_props = pnv_allprops;
p_zfs->zfs_user_props = pnv_userprops;
return 0;
}
static int
zfs_vfs_getattr(struct mount *mp, struct vfs_attr *fsap, __unused vfs_context_t context)
{
zfsvfs_t *zfsvfs = vfs_fsprivate(mp);
uint64_t refdbytes, availbytes, usedobjs, availobjs;
ZFS_ENTER(zfsvfs);
dmu_objset_space(zfsvfs->z_os,
&refdbytes, &availbytes, &usedobjs, &availobjs);
VFSATTR_RETURN(fsap, f_objcount, usedobjs);
VFSATTR_RETURN(fsap, f_maxobjcount, 0x7fffffffffffffff);
/*
* Carbon depends on f_filecount and f_dircount so
* make up some values based on total objects.
*/
VFSATTR_RETURN(fsap, f_filecount, usedobjs - (usedobjs / 4));
VFSATTR_RETURN(fsap, f_dircount, usedobjs / 4);
/*
* The underlying storage pool actually uses multiple block sizes.
* We report the fragsize as the smallest block size we support,
* and we report our blocksize as the filesystem's maximum blocksize.
*/
VFSATTR_RETURN(fsap, f_bsize, 1UL << SPA_MINBLOCKSHIFT);
VFSATTR_RETURN(fsap, f_iosize, zfsvfs->z_max_blksz);
/*
* The following report "total" blocks of various kinds in the
* file system, but reported in terms of f_frsize - the
* "fragment" size.
*/
VFSATTR_RETURN(fsap, f_blocks,
(u_int64_t)((refdbytes + availbytes) >> SPA_MINBLOCKSHIFT));
VFSATTR_RETURN(fsap, f_bfree, (u_int64_t)(availbytes >> SPA_MINBLOCKSHIFT));
VFSATTR_RETURN(fsap, f_bavail, fsap->f_bfree); /* no root reservation */
VFSATTR_RETURN(fsap, f_bused, fsap->f_blocks - fsap->f_bfree);
/*
* statvfs() should really be called statufs(), because it assumes
* static metadata. ZFS doesn't preallocate files, so the best
* we can do is report the max that could possibly fit in f_files,
* and that minus the number actually used in f_ffree.
* For f_ffree, report the smaller of the number of object available
* and the number of blocks (each object will take at least a block).
*/
VFSATTR_RETURN(fsap, f_ffree, (u_int64_t)MIN(availobjs, fsap->f_bfree));
VFSATTR_RETURN(fsap, f_files, fsap->f_ffree + usedobjs);
#if 0
statp->f_flag = vf_to_stf(vfsp->vfs_flag);
#endif
if (VFSATTR_IS_ACTIVE(fsap, f_fsid)) {
VFSATTR_RETURN(fsap, f_fsid, vfs_statfs(mp)->f_fsid);
}
if (VFSATTR_IS_ACTIVE(fsap, f_capabilities)) {
bcopy(&zfs_capabilities, &fsap->f_capabilities, sizeof (zfs_capabilities));
VFSATTR_SET_SUPPORTED(fsap, f_capabilities);
}
if (VFSATTR_IS_ACTIVE(fsap, f_attributes)) {
bcopy(&zfs_attributes, &fsap->f_attributes.validattr, sizeof (zfs_attributes));
bcopy(&zfs_attributes, &fsap->f_attributes.nativeattr, sizeof (zfs_attributes));
VFSATTR_SET_SUPPORTED(fsap, f_attributes);
}
if (VFSATTR_IS_ACTIVE(fsap, f_create_time)) {
dmu_objset_stats_t dmu_stat;
dmu_objset_fast_stat(zfsvfs->z_os, &dmu_stat);
fsap->f_create_time.tv_sec = dmu_stat.dds_creation_time;
fsap->f_create_time.tv_nsec = 0;
VFSATTR_SET_SUPPORTED(fsap, f_create_time);
}
if (VFSATTR_IS_ACTIVE(fsap, f_modify_time)) {
if (zfsvfs->z_mtime_vp != NULL) {
znode_t *mzp;
mzp = VTOZ(zfsvfs->z_mtime_vp);
ZFS_TIME_DECODE(&fsap->f_modify_time, mzp->z_phys->zp_mtime);
} else {
fsap->f_modify_time.tv_sec = 0;
fsap->f_modify_time.tv_nsec = 0;
}
VFSATTR_SET_SUPPORTED(fsap, f_modify_time);
}
/*
* For Carbon compatibility, pretend to support this legacy/unused
* attribute
*/
if (VFSATTR_IS_ACTIVE(fsap, f_backup_time)) {
fsap->f_backup_time.tv_sec = 0;
fsap->f_backup_time.tv_nsec = 0;
VFSATTR_SET_SUPPORTED(fsap, f_backup_time);
}
if (VFSATTR_IS_ACTIVE(fsap, f_vol_name)) {
spa_t *spa = dmu_objset_spa(zfsvfs->z_os);
spa_config_enter(spa, RW_READER, FTAG);
strlcpy(fsap->f_vol_name, spa_name(spa), MAXPATHLEN);
spa_config_exit(spa, FTAG);
VFSATTR_SET_SUPPORTED(fsap, f_vol_name);
}
VFSATTR_RETURN(fsap, f_fssubtype, 0);
VFSATTR_RETURN(fsap, f_signature, 0x5a21); /* 'Z!' */
VFSATTR_RETURN(fsap, f_carbon_fsid, 0);
ZFS_EXIT(zfsvfs);
return (0);
}
