diff options
Diffstat (limited to 'include/sys/zio.h')
| -rw-r--r-- | include/sys/zio.h | 68 |
1 files changed, 33 insertions, 35 deletions
diff --git a/include/sys/zio.h b/include/sys/zio.h index b505ca1e6..cfb256f0f 100644 --- a/include/sys/zio.h +++ b/include/sys/zio.h @@ -22,7 +22,7 @@ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright 2011 Nexenta Systems, Inc. All rights reserved. - * Copyright (c) 2012 by Delphix. All rights reserved. + * Copyright (c) 2013 by Delphix. All rights reserved. * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. */ @@ -130,19 +130,16 @@ enum zio_compress { #define ZIO_FAILURE_MODE_CONTINUE 1 #define ZIO_FAILURE_MODE_PANIC 2 -#define ZIO_PRIORITY_NOW (zio_priority_table[0]) -#define ZIO_PRIORITY_SYNC_READ (zio_priority_table[1]) -#define ZIO_PRIORITY_SYNC_WRITE (zio_priority_table[2]) -#define ZIO_PRIORITY_LOG_WRITE (zio_priority_table[3]) -#define ZIO_PRIORITY_CACHE_FILL (zio_priority_table[4]) -#define ZIO_PRIORITY_AGG (zio_priority_table[5]) -#define ZIO_PRIORITY_FREE (zio_priority_table[6]) -#define ZIO_PRIORITY_ASYNC_WRITE (zio_priority_table[7]) -#define ZIO_PRIORITY_ASYNC_READ (zio_priority_table[8]) -#define ZIO_PRIORITY_RESILVER (zio_priority_table[9]) -#define ZIO_PRIORITY_SCRUB (zio_priority_table[10]) -#define ZIO_PRIORITY_DDT_PREFETCH (zio_priority_table[11]) -#define ZIO_PRIORITY_TABLE_SIZE 12 +typedef enum zio_priority { + ZIO_PRIORITY_SYNC_READ, + ZIO_PRIORITY_SYNC_WRITE, /* ZIL */ + ZIO_PRIORITY_ASYNC_READ, /* prefetch */ + ZIO_PRIORITY_ASYNC_WRITE, /* spa_sync() */ + ZIO_PRIORITY_SCRUB, /* asynchronous scrub/resilver reads */ + ZIO_PRIORITY_NUM_QUEUEABLE, + + ZIO_PRIORITY_NOW /* non-queued i/os (e.g. free) */ +} zio_priority_t; #define ZIO_PIPELINE_CONTINUE 0x100 #define ZIO_PIPELINE_STOP 0x101 @@ -198,7 +195,8 @@ enum zio_flag { ZIO_FLAG_GODFATHER = 1 << 24, ZIO_FLAG_NOPWRITE = 1 << 25, ZIO_FLAG_REEXECUTED = 1 << 26, - ZIO_FLAG_FASTWRITE = 1 << 27 + ZIO_FLAG_DELEGATED = 1 << 27, + ZIO_FLAG_FASTWRITE = 1 << 28 }; #define ZIO_FLAG_MUSTSUCCEED 0 @@ -238,8 +236,7 @@ enum zio_wait_type { typedef void zio_done_func_t(zio_t *zio); -extern uint8_t zio_priority_table[ZIO_PRIORITY_TABLE_SIZE]; -extern char *zio_type_name[ZIO_TYPES]; +extern const char *zio_type_name[ZIO_TYPES]; /* * A bookmark is a four-tuple <objset, object, level, blkid> that uniquely @@ -381,7 +378,7 @@ struct zio { zio_type_t io_type; enum zio_child io_child_type; int io_cmd; - uint8_t io_priority; + zio_priority_t io_priority; uint8_t io_reexecute; uint8_t io_state[ZIO_WAIT_TYPES]; uint64_t io_txg; @@ -396,7 +393,8 @@ struct zio { zio_transform_t *io_transform_stack; /* Callback info */ - zio_done_func_t *io_ready; + zio_done_func_t *io_ready; + zio_done_func_t *io_physdone; zio_done_func_t *io_done; void *io_private; int64_t io_prev_space_delta; /* DMU private */ @@ -414,13 +412,10 @@ struct zio { const zio_vsd_ops_t *io_vsd_ops; uint64_t io_offset; - uint64_t io_deadline; /* expires at timestamp + deadline */ hrtime_t io_timestamp; /* submitted at */ hrtime_t io_delta; /* vdev queue service delta */ uint64_t io_delay; /* vdev disk service delta (ticks) */ - avl_node_t io_offset_node; - avl_node_t io_deadline_node; - avl_tree_t *io_vdev_tree; + avl_node_t io_queue_node; /* Internal pipeline state */ enum zio_flag io_flags; @@ -433,6 +428,7 @@ struct zio { int io_child_error[ZIO_CHILD_TYPES]; uint64_t io_children[ZIO_CHILD_TYPES][ZIO_WAIT_TYPES]; uint64_t io_child_count; + uint64_t io_phys_children; uint64_t io_parent_count; uint64_t *io_stall; zio_t *io_gang_leader; @@ -458,16 +454,17 @@ extern zio_t *zio_root(spa_t *spa, extern zio_t *zio_read(zio_t *pio, spa_t *spa, const blkptr_t *bp, void *data, uint64_t size, zio_done_func_t *done, void *private, - int priority, enum zio_flag flags, const zbookmark_t *zb); + zio_priority_t priority, enum zio_flag flags, const zbookmark_t *zb); extern zio_t *zio_write(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, void *data, uint64_t size, const zio_prop_t *zp, - zio_done_func_t *ready, zio_done_func_t *done, void *private, - int priority, enum zio_flag flags, const zbookmark_t *zb); + zio_done_func_t *ready, zio_done_func_t *physdone, zio_done_func_t *done, + void *private, + zio_priority_t priority, enum zio_flag flags, const zbookmark_t *zb); extern zio_t *zio_rewrite(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, void *data, uint64_t size, zio_done_func_t *done, void *private, - int priority, enum zio_flag flags, zbookmark_t *zb); + zio_priority_t priority, enum zio_flag flags, zbookmark_t *zb); extern void zio_write_override(zio_t *zio, blkptr_t *bp, int copies, boolean_t nopwrite); @@ -479,17 +476,17 @@ extern zio_t *zio_claim(zio_t *pio, spa_t *spa, uint64_t txg, zio_done_func_t *done, void *private, enum zio_flag flags); extern zio_t *zio_ioctl(zio_t *pio, spa_t *spa, vdev_t *vd, int cmd, - zio_done_func_t *done, void *private, int priority, enum zio_flag flags); + zio_done_func_t *done, void *private, enum zio_flag flags); extern zio_t *zio_read_phys(zio_t *pio, vdev_t *vd, uint64_t offset, uint64_t size, void *data, int checksum, - zio_done_func_t *done, void *private, int priority, enum zio_flag flags, - boolean_t labels); + zio_done_func_t *done, void *private, zio_priority_t priority, + enum zio_flag flags, boolean_t labels); extern zio_t *zio_write_phys(zio_t *pio, vdev_t *vd, uint64_t offset, uint64_t size, void *data, int checksum, - zio_done_func_t *done, void *private, int priority, enum zio_flag flags, - boolean_t labels); + zio_done_func_t *done, void *private, zio_priority_t priority, + enum zio_flag flags, boolean_t labels); extern zio_t *zio_free_sync(zio_t *pio, spa_t *spa, uint64_t txg, const blkptr_t *bp, enum zio_flag flags); @@ -520,11 +517,12 @@ extern void zio_vdev_free(void *buf); extern void zio_resubmit_stage_async(void *); extern zio_t *zio_vdev_child_io(zio_t *zio, blkptr_t *bp, vdev_t *vd, - uint64_t offset, void *data, uint64_t size, int type, int priority, - enum zio_flag flags, zio_done_func_t *done, void *private); + uint64_t offset, void *data, uint64_t size, int type, + zio_priority_t priority, enum zio_flag flags, + zio_done_func_t *done, void *private); extern zio_t *zio_vdev_delegated_io(vdev_t *vd, uint64_t offset, - void *data, uint64_t size, int type, int priority, + void *data, uint64_t size, int type, zio_priority_t priority, enum zio_flag flags, zio_done_func_t *done, void *private); extern void zio_vdev_io_bypass(zio_t *zio); |