diff options
Diffstat (limited to 'include/sys/vdev_impl.h')
| -rw-r--r-- | include/sys/vdev_impl.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/include/sys/vdev_impl.h b/include/sys/vdev_impl.h index 0d09c81c7..47e70090a 100644 --- a/include/sys/vdev_impl.h +++ b/include/sys/vdev_impl.h @@ -53,6 +53,9 @@ typedef struct vdev_queue vdev_queue_t; typedef struct vdev_cache vdev_cache_t; typedef struct vdev_cache_entry vdev_cache_entry_t; +extern int zfs_vdev_queue_depth_pct; +extern uint32_t zfs_vdev_async_write_max_active; + /* * Virtual device operations */ @@ -177,10 +180,21 @@ struct vdev { uint64_t vdev_deflate_ratio; /* deflation ratio (x512) */ uint64_t vdev_islog; /* is an intent log device */ uint64_t vdev_removing; /* device is being removed? */ - boolean_t vdev_ishole; /* is a hole in the namespace */ + boolean_t vdev_ishole; /* is a hole in the namespace */ + kmutex_t vdev_queue_lock; /* protects vdev_queue_depth */ uint64_t vdev_top_zap; /* + * The queue depth parameters determine how many async writes are + * still pending (i.e. allocated by net yet issued to disk) per + * top-level (vdev_async_write_queue_depth) and the maximum allowed + * (vdev_max_async_write_queue_depth). These values only apply to + * top-level vdevs. + */ + uint64_t vdev_async_write_queue_depth; + uint64_t vdev_max_async_write_queue_depth; + + /* * Leaf vdev state. */ range_tree_t *vdev_dtl[DTL_TYPES]; /* dirty time logs */ |