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_statvfs(vfs_t *vfsp, struct statvfs64 *statp)
{
zfsvfs_t *zfsvfs = vfsp->vfs_data;
dmu_objset_stats_t dstats;
dev32_t d32;
ZFS_ENTER(zfsvfs);
dmu_objset_stats(zfsvfs->z_os, &dstats);
/*
* 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.
*/
statp->f_frsize = 1UL << SPA_MINBLOCKSHIFT;
statp->f_bsize = 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.
*/
statp->f_blocks =
(dstats.dds_space_refd + dstats.dds_available) >> SPA_MINBLOCKSHIFT;
statp->f_bfree = dstats.dds_available >> SPA_MINBLOCKSHIFT;
statp->f_bavail = statp->f_bfree; /* no root reservation */
/*
* 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).
*/
statp->f_ffree = MIN(dstats.dds_objects_avail, statp->f_bfree);
statp->f_favail = statp->f_ffree; /* no "root reservation" */
statp->f_files = statp->f_ffree + dstats.dds_objects_used;
(void) cmpldev(&d32, vfsp->vfs_dev);
statp->f_fsid = d32;
/*
* We're a zfs filesystem.
*/
(void) strcpy(statp->f_basetype, vfssw[vfsp->vfs_fstype].vsw_name);
statp->f_flag = vf_to_stf(vfsp->vfs_flag);
statp->f_namemax = ZFS_MAXNAMELEN;
/*
* We have all of 32 characters to stuff a string here.
* Is there anything useful we could/should provide?
*/
bzero(statp->f_fstr, sizeof (statp->f_fstr));
ZFS_EXIT(zfsvfs);
return (0);
}
