diff options
Diffstat (limited to 'sys/contrib/openzfs/include/sys/vdev_removal.h')
| -rw-r--r-- | sys/contrib/openzfs/include/sys/vdev_removal.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/include/sys/vdev_removal.h b/sys/contrib/openzfs/include/sys/vdev_removal.h new file mode 100644 index 000000000000..e3bab0658d62 --- /dev/null +++ b/sys/contrib/openzfs/include/sys/vdev_removal.h @@ -0,0 +1,96 @@ +/* + * CDDL HEADER START + * + * This file and its contents are supplied under the terms of the + * Common Development and Distribution License ("CDDL"), version 1.0. + * You may only use this file in accordance with the terms of version + * 1.0 of the CDDL. + * + * A full copy of the text of the CDDL should have accompanied this + * source. A copy of the CDDL is also available via the Internet at + * http://www.illumos.org/license/CDDL. + * + * CDDL HEADER END + */ + +/* + * Copyright (c) 2014, 2019 by Delphix. All rights reserved. + */ + +#ifndef _SYS_VDEV_REMOVAL_H +#define _SYS_VDEV_REMOVAL_H + +#include <sys/spa.h> +#include <sys/bpobj.h> +#include <sys/vdev_indirect_mapping.h> +#include <sys/vdev_indirect_births.h> + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct spa_vdev_removal { + uint64_t svr_vdev_id; + uint64_t svr_max_offset_to_sync[TXG_SIZE]; + /* Thread performing a vdev removal. */ + kthread_t *svr_thread; + /* Segments left to copy from the current metaslab. */ + range_tree_t *svr_allocd_segs; + kmutex_t svr_lock; + kcondvar_t svr_cv; + boolean_t svr_thread_exit; + + /* + * New mappings to write out each txg. + */ + list_t svr_new_segments[TXG_SIZE]; + + /* + * Ranges that were freed while a mapping was in flight. This is + * a subset of the ranges covered by vdev_im_new_segments. + */ + range_tree_t *svr_frees[TXG_SIZE]; + + /* + * Number of bytes which we have finished our work for + * in each txg. This could be data copied (which will be part of + * the mappings in vdev_im_new_segments), or data freed before + * we got around to copying it. + */ + uint64_t svr_bytes_done[TXG_SIZE]; + + /* List of leaf zap objects to be unlinked */ + nvlist_t *svr_zaplist; +} spa_vdev_removal_t; + +typedef struct spa_condensing_indirect { + /* + * New mappings to write out each txg. + */ + list_t sci_new_mapping_entries[TXG_SIZE]; + + vdev_indirect_mapping_t *sci_new_mapping; +} spa_condensing_indirect_t; + +extern int spa_remove_init(spa_t *); +extern void spa_restart_removal(spa_t *); +extern int spa_condense_init(spa_t *); +extern void spa_condense_fini(spa_t *); +extern void spa_start_indirect_condensing_thread(spa_t *); +extern void spa_vdev_condense_suspend(spa_t *); +extern int spa_vdev_remove(spa_t *, uint64_t, boolean_t); +extern void free_from_removing_vdev(vdev_t *, uint64_t, uint64_t); +extern int spa_removal_get_stats(spa_t *, pool_removal_stat_t *); +extern void svr_sync(spa_t *, dmu_tx_t *); +extern void spa_vdev_remove_suspend(spa_t *); +extern int spa_vdev_remove_cancel(spa_t *); +extern void spa_vdev_removal_destroy(spa_vdev_removal_t *); +extern uint64_t spa_remove_max_segment(spa_t *); + +extern int vdev_removal_max_span; + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_VDEV_REMOVAL_H */ |