diff options
Diffstat (limited to 'include/sys/metaslab_impl.h')
| -rw-r--r-- | include/sys/metaslab_impl.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/include/sys/metaslab_impl.h b/include/sys/metaslab_impl.h index f8a713a4f..76f670a4d 100644 --- a/include/sys/metaslab_impl.h +++ b/include/sys/metaslab_impl.h @@ -257,14 +257,13 @@ struct metaslab_group { * Each metaslab maintains a set of in-core trees to track metaslab * operations. The in-core free tree (ms_tree) contains the list of * free segments which are eligible for allocation. As blocks are - * allocated, the allocated segments are removed from the ms_tree and - * added to a per txg allocation tree (ms_alloctree). This allows us to - * process all allocations in syncing context where it is safe to update - * the on-disk space maps. Frees are also processed in syncing context. - * Most frees are generated from syncing context, and those that are not - * are held in the spa_free_bplist for processing in syncing context. - * An additional set of in-core trees is maintained to track deferred - * frees (ms_defertree). Once a block is freed it will move from the + * allocated, the allocated segment are removed from the ms_tree and + * added to a per txg allocation tree (ms_alloctree). As blocks are + * freed, they are added to the free tree (ms_freeingtree). These trees + * allow us to process all allocations and frees in syncing context + * where it is safe to update the on-disk space maps. An additional set + * of in-core trees is maintained to track deferred frees + * (ms_defertree). Once a block is freed it will move from the * ms_freedtree to the ms_defertree. A deferred free means that a block * has been freed but cannot be used by the pool until TXG_DEFER_SIZE * transactions groups later. For example, a block that is freed in txg @@ -310,6 +309,7 @@ struct metaslab_group { */ struct metaslab { kmutex_t ms_lock; + kmutex_t ms_sync_lock; kcondvar_t ms_load_cv; space_map_t *ms_sm; uint64_t ms_id; |