| /* |
| * CDDL HEADER START |
| * |
| * The contents of this file are subject to the terms of the |
| * Common Development and Distribution License (the "License"). |
| * You may not use this file except in compliance with the License. |
| * |
| * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
| * or http://www.opensolaris.org/os/licensing. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * |
| * When distributing Covered Code, include this CDDL HEADER in each |
| * file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
| * If applicable, add the following below this CDDL HEADER, with the |
| * fields enclosed by brackets "[]" replaced with your own identifying |
| * information: Portions Copyright [yyyy] [name of copyright owner] |
| * |
| * CDDL HEADER END |
| */ |
| |
| /* |
| * Copyright (c) 2018, 2019 by Delphix. All rights reserved. |
| */ |
| |
| #ifndef _SYS_SPA_LOG_SPACEMAP_H |
| #define _SYS_SPA_LOG_SPACEMAP_H |
| |
| #include <sys/avl.h> |
| |
| typedef struct log_summary_entry { |
| uint64_t lse_start; /* start TXG */ |
| uint64_t lse_end; /* last TXG */ |
| uint64_t lse_txgcount; /* # of TXGs */ |
| uint64_t lse_mscount; /* # of metaslabs needed to be flushed */ |
| uint64_t lse_msdcount; /* # of dirty metaslabs needed to be flushed */ |
| uint64_t lse_blkcount; /* blocks held by this entry */ |
| list_node_t lse_node; |
| } log_summary_entry_t; |
| |
| typedef struct spa_unflushed_stats { |
| /* used for memory heuristic */ |
| uint64_t sus_memused; /* current memory used for unflushed trees */ |
| |
| /* used for block heuristic */ |
| uint64_t sus_blocklimit; /* max # of log blocks allowed */ |
| uint64_t sus_nblocks; /* # of blocks in log space maps currently */ |
| } spa_unflushed_stats_t; |
| |
| typedef struct spa_log_sm { |
| uint64_t sls_sm_obj; /* space map object ID */ |
| uint64_t sls_txg; /* txg logged on the space map */ |
| uint64_t sls_nblocks; /* number of blocks in this log */ |
| uint64_t sls_mscount; /* # of metaslabs flushed in the log's txg */ |
| avl_node_t sls_node; /* node in spa_sm_logs_by_txg */ |
| space_map_t *sls_sm; /* space map pointer, if open */ |
| } spa_log_sm_t; |
| |
| int spa_ld_log_spacemaps(spa_t *); |
| |
| void spa_generate_syncing_log_sm(spa_t *, dmu_tx_t *); |
| void spa_flush_metaslabs(spa_t *, dmu_tx_t *); |
| void spa_sync_close_syncing_log_sm(spa_t *); |
| |
| void spa_cleanup_old_sm_logs(spa_t *, dmu_tx_t *); |
| |
| uint64_t spa_log_sm_blocklimit(spa_t *); |
| void spa_log_sm_set_blocklimit(spa_t *); |
| uint64_t spa_log_sm_nblocks(spa_t *); |
| uint64_t spa_log_sm_memused(spa_t *); |
| |
| void spa_log_sm_decrement_mscount(spa_t *, uint64_t); |
| void spa_log_sm_increment_current_mscount(spa_t *); |
| |
| void spa_log_summary_add_flushed_metaslab(spa_t *, boolean_t); |
| void spa_log_summary_dirty_flushed_metaslab(spa_t *, uint64_t); |
| void spa_log_summary_decrement_mscount(spa_t *, uint64_t, boolean_t); |
| void spa_log_summary_decrement_blkcount(spa_t *, uint64_t); |
| |
| boolean_t spa_flush_all_logs_requested(spa_t *); |
| |
| extern int zfs_keep_log_spacemaps_at_export; |
| |
| #endif /* _SYS_SPA_LOG_SPACEMAP_H */ |