/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
*/
+/*
+ * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
+ */
#ifndef _ZIO_H
#define _ZIO_H
ZIO_COMPRESS_ON_VALUE == ZIO_COMPRESS_LZJB) || \
(compress) == ZIO_COMPRESS_OFF)
+/*
+ * Default Linux timeout for a sd device.
+ */
+#define ZIO_DELAY_MAX (30 * MILLISEC)
+
#define ZIO_FAILURE_MODE_WAIT 0
#define ZIO_FAILURE_MODE_CONTINUE 1
#define ZIO_FAILURE_MODE_PANIC 2
ZIO_FLAG_RAW = 1 << 21,
ZIO_FLAG_GANG_CHILD = 1 << 22,
ZIO_FLAG_DDT_CHILD = 1 << 23,
- ZIO_FLAG_GODFATHER = 1 << 24
+ ZIO_FLAG_GODFATHER = 1 << 24,
+ ZIO_FLAG_FASTWRITE = 1 << 25
};
#define ZIO_FLAG_MUSTSUCCEED 0
enum zio_flag io_orig_flags;
enum zio_stage io_orig_stage;
enum zio_stage io_orig_pipeline;
+ uint64_t io_delay;
int io_error;
int io_child_error[ZIO_CHILD_TYPES];
uint64_t io_children[ZIO_CHILD_TYPES][ZIO_WAIT_TYPES];
/* FMA state */
zio_cksum_report_t *io_cksum_report;
uint64_t io_ena;
+
+ /* Taskq dispatching state */
+ taskq_ent_t io_tqent;
};
extern zio_t *zio_null(zio_t *pio, spa_t *spa, vdev_t *vd,
const blkptr_t *bp, enum zio_flag flags);
extern int zio_alloc_zil(spa_t *spa, uint64_t txg, blkptr_t *new_bp,
- blkptr_t *old_bp, uint64_t size, boolean_t use_slog);
+ uint64_t size, boolean_t use_slog);
extern void zio_free_zil(spa_t *spa, uint64_t txg, blkptr_t *bp);
extern void zio_flush(zio_t *zio, vdev_t *vd);
extern void zio_shrink(zio_t *zio, uint64_t size);
extern void zio_buf_free(void *buf, size_t size);
extern void *zio_data_buf_alloc(size_t size);
extern void zio_data_buf_free(void *buf, size_t size);
+extern void *zio_vdev_alloc(void);
+extern void zio_vdev_free(void *buf);
extern void zio_resubmit_stage_async(void *);