C++ (Cpp) zvol_remove_link Examples

Example #1

File: libzfs_pool.c Project: unofficial-opensource-apple/zfs

static int
do_zvol_remove(const char *dataset, void *data)
{
	zpool_handle_t *zhp = data;

	return (zvol_remove_link(zhp->zpool_hdl, dataset));
}

Example #2

File: libzfs_changelist.c Project: roddi/mac-zfs

/*
 * If the property is 'mountpoint', go through and unmount filesystems as
 * necessary.  We don't do the same for 'sharenfs', because we can just re-share
 * with different options without interrupting service.
 */
int
changelist_prefix(prop_changelist_t *clp)
{
	prop_changenode_t *cn;
	int ret = 0;

	if (clp->cl_prop != ZFS_PROP_MOUNTPOINT)
		return (0);

	for (cn = uu_list_first(clp->cl_list); cn != NULL;
	    cn = uu_list_next(clp->cl_list, cn)) {

#ifndef __APPLE__
		/*
		 * If we are in the global zone, but this dataset is exported
		 * to a local zone, do nothing.
		 */
		if (getzoneid() == GLOBAL_ZONEID && cn->cn_zoned)
			continue;
#endif /*!__APPLE__*/

		if (ZFS_IS_VOLUME(cn->cn_handle)) {
			switch (clp->cl_realprop) {
			case ZFS_PROP_NAME:
				/*
				 * If this was a rename, unshare the zvol, and
				 * remove the /dev/zvol links.
				 */
				(void) zfs_unshare_iscsi(cn->cn_handle);

				if (zvol_remove_link(cn->cn_handle->zfs_hdl,
				    cn->cn_handle->zfs_name) != 0)
					ret = -1;
				break;

			case ZFS_PROP_VOLSIZE:
				/*
				 * If this was a change to the volume size, we
				 * need to unshare and reshare the volume.
				 */
				(void) zfs_unshare_iscsi(cn->cn_handle);
				break;
			}
		} else if (zfs_unmount(cn->cn_handle, NULL,
		    clp->cl_flags) != 0) {
			ret = -1;
		}
	}

	return (ret);
}

Example #3

File: libzfs_pool.c Project: andreiw/polaris

static int
do_zvol(zfs_handle_t *zhp, void *data)
{
	int linktype = (int)(uintptr_t)data;
	int ret;

	/*
	 * We check for volblocksize intead of ZFS_TYPE_VOLUME so that we
	 * correctly handle snapshots of volumes.
	 */
	if (zhp->zfs_volblocksize != 0) {
		if (linktype)
			ret = zvol_create_link(zhp->zfs_hdl, zhp->zfs_name);
		else
			ret = zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name);
	}

	ret = zfs_iter_children(zhp, do_zvol, data);

	zfs_close(zhp);
	return (ret);
}

Example #4

File: libzfs_changelist.c Project: alblue/onnv-gate-zfs

/*
 * If the property is 'mountpoint', go through and unmount filesystems as
 * necessary.  We don't do the same for 'sharenfs', because we can just re-share
 * with different options without interrupting service.
 */
int
changelist_prefix(prop_changelist_t *clp)
{
	prop_changenode_t *cn;
	int ret = 0;

	if (clp->cl_prop != ZFS_PROP_MOUNTPOINT)
		return (0);

	for (cn = uu_list_first(clp->cl_list); cn != NULL;
	    cn = uu_list_next(clp->cl_list, cn)) {

		/* if a previous loop failed, set the remaining to false */
		if (ret == -1) {
			cn->cn_needpost = B_FALSE;
			continue;
		}

		/*
		 * If we are in the global zone, but this dataset is exported
		 * to a local zone, do nothing.
		 */
		if (getzoneid() == GLOBAL_ZONEID && cn->cn_zoned)
			continue;

		if (ZFS_IS_VOLUME(cn->cn_handle)) {
			switch (clp->cl_realprop) {
			case ZFS_PROP_NAME:
				/*
				 * If this was a rename, unshare the zvol, and
				 * remove the /dev/zvol links.
				 */
				(void) zfs_unshare_iscsi(cn->cn_handle);

				if (zvol_remove_link(cn->cn_handle->zfs_hdl,
				    cn->cn_handle->zfs_name) != 0) {
					ret = -1;
					cn->cn_needpost = B_FALSE;
					(void) zfs_share_iscsi(cn->cn_handle);
				}
				break;

			case ZFS_PROP_VOLSIZE:
				/*
				 * If this was a change to the volume size, we
				 * need to unshare and reshare the volume.
				 */
				(void) zfs_unshare_iscsi(cn->cn_handle);
				break;
			}
		} else if (zfs_unmount(cn->cn_handle, NULL,
		    clp->cl_flags) != 0) {
			ret = -1;
			cn->cn_needpost = B_FALSE;
		}
	}

	if (ret == -1)
		(void) changelist_postfix(clp);

	return (ret);
}