diff options
Diffstat (limited to 'include/sys/zio.h')
| -rw-r--r-- | include/sys/zio.h | 44 |
1 files changed, 25 insertions, 19 deletions
diff --git a/include/sys/zio.h b/include/sys/zio.h index 22001559c..864e8b2be 100644 --- a/include/sys/zio.h +++ b/include/sys/zio.h @@ -157,6 +157,7 @@ enum zio_flag { ZIO_FLAG_DONT_CACHE = 1 << 11, ZIO_FLAG_NODATA = 1 << 12, ZIO_FLAG_INDUCE_DAMAGE = 1 << 13, + ZIO_FLAG_IO_ALLOCATING = 1 << 14, #define ZIO_FLAG_DDT_INHERIT (ZIO_FLAG_IO_RETRY - 1) #define ZIO_FLAG_GANG_INHERIT (ZIO_FLAG_IO_RETRY - 1) @@ -164,28 +165,28 @@ enum zio_flag { /* * Flags inherited by vdev children. */ - ZIO_FLAG_IO_RETRY = 1 << 14, /* must be first for INHERIT */ - ZIO_FLAG_PROBE = 1 << 15, - ZIO_FLAG_TRYHARD = 1 << 16, - ZIO_FLAG_OPTIONAL = 1 << 17, + ZIO_FLAG_IO_RETRY = 1 << 15, /* must be first for INHERIT */ + ZIO_FLAG_PROBE = 1 << 16, + ZIO_FLAG_TRYHARD = 1 << 17, + ZIO_FLAG_OPTIONAL = 1 << 18, #define ZIO_FLAG_VDEV_INHERIT (ZIO_FLAG_DONT_QUEUE - 1) /* * Flags not inherited by any children. */ - ZIO_FLAG_DONT_QUEUE = 1 << 18, /* must be first for INHERIT */ - ZIO_FLAG_DONT_PROPAGATE = 1 << 19, - ZIO_FLAG_IO_BYPASS = 1 << 20, - ZIO_FLAG_IO_REWRITE = 1 << 21, - ZIO_FLAG_RAW = 1 << 22, - ZIO_FLAG_GANG_CHILD = 1 << 23, - ZIO_FLAG_DDT_CHILD = 1 << 24, - ZIO_FLAG_GODFATHER = 1 << 25, - ZIO_FLAG_NOPWRITE = 1 << 26, - ZIO_FLAG_REEXECUTED = 1 << 27, - ZIO_FLAG_DELEGATED = 1 << 28, - ZIO_FLAG_FASTWRITE = 1 << 29, + ZIO_FLAG_DONT_QUEUE = 1 << 19, /* must be first for INHERIT */ + ZIO_FLAG_DONT_PROPAGATE = 1 << 20, + ZIO_FLAG_IO_BYPASS = 1 << 21, + ZIO_FLAG_IO_REWRITE = 1 << 22, + ZIO_FLAG_RAW = 1 << 23, + ZIO_FLAG_GANG_CHILD = 1 << 24, + ZIO_FLAG_DDT_CHILD = 1 << 25, + ZIO_FLAG_GODFATHER = 1 << 26, + ZIO_FLAG_NOPWRITE = 1 << 27, + ZIO_FLAG_REEXECUTED = 1 << 28, + ZIO_FLAG_DELEGATED = 1 << 29, + ZIO_FLAG_FASTWRITE = 1 << 30 }; #define ZIO_FLAG_MUSTSUCCEED 0 @@ -225,6 +226,7 @@ enum zio_wait_type { typedef void zio_done_func_t(zio_t *zio); +extern int zio_dva_throttle_enabled; extern const char *zio_type_name[ZIO_TYPES]; /* @@ -379,7 +381,6 @@ struct zio { blkptr_t io_bp_copy; list_t io_parent_list; list_t io_child_list; - zio_link_t *io_walk_link; zio_t *io_logical; zio_transform_t *io_transform_stack; @@ -407,12 +408,14 @@ struct zio { uint64_t io_offset; hrtime_t io_timestamp; /* submitted at */ + hrtime_t io_queued_timestamp; hrtime_t io_target_timestamp; hrtime_t io_delta; /* vdev queue service delta */ hrtime_t io_delay; /* Device access time (disk or */ /* file). */ avl_node_t io_queue_node; avl_node_t io_offset_node; + avl_node_t io_alloc_node; /* Internal pipeline state */ enum zio_flag io_flags; @@ -421,6 +424,7 @@ struct zio { enum zio_flag io_orig_flags; enum zio_stage io_orig_stage; enum zio_stage io_orig_pipeline; + enum zio_stage io_pipeline_trace; int io_error; int io_child_error[ZIO_CHILD_TYPES]; uint64_t io_children[ZIO_CHILD_TYPES][ZIO_WAIT_TYPES]; @@ -443,6 +447,8 @@ struct zio { taskq_ent_t io_tqent; }; +extern int zio_timestamp_compare(const void *, const void *); + extern zio_t *zio_null(zio_t *pio, spa_t *spa, vdev_t *vd, zio_done_func_t *done, void *private, enum zio_flag flags); @@ -502,8 +508,8 @@ extern void zio_interrupt(zio_t *zio); extern void zio_delay_init(zio_t *zio); extern void zio_delay_interrupt(zio_t *zio); -extern zio_t *zio_walk_parents(zio_t *cio); -extern zio_t *zio_walk_children(zio_t *pio); +extern zio_t *zio_walk_parents(zio_t *cio, zio_link_t **); +extern zio_t *zio_walk_children(zio_t *pio, zio_link_t **); extern zio_t *zio_unique_parent(zio_t *cio); extern void zio_add_child(zio_t *pio, zio_t *cio); |