/* * 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, 2015 by Delphix. All rights reserved. */ #ifndef _SYS_VDEV_REMOVAL_H #define _SYS_VDEV_REMOVAL_H #include #include #include #include #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, uint64_t); extern int spa_removal_get_stats(spa_t *, pool_removal_stat_t *); extern void svr_sync(spa_t *spa, dmu_tx_t *tx); 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 *svr); extern int vdev_removal_max_span; extern int zfs_remove_max_segment; #ifdef __cplusplus } #endif #endif /* _SYS_VDEV_REMOVAL_H */