zio_priority.h revision a2cdcdd260232b58202b11a9bfc0103c9449ed52
1/*
2 * CDDL HEADER START
3 *
4 * This file and its contents are supplied under the terms of the
5 * Common Development and Distribution License ("CDDL"), version 1.0.
6 * You may only use this file in accordance with the terms of version
7 * 1.0 of the CDDL.
8 *
9 * A full copy of the text of the CDDL should have accompanied this
10 * source.  A copy of the CDDL is also available via the Internet at
11 * http://www.illumos.org/license/CDDL.
12 *
13 * CDDL HEADER END
14 */
15/*
16 * Copyright (c) 2014 by Delphix. All rights reserved.
17 */
18#ifndef	_ZIO_PRIORITY_H
19#define	_ZIO_PRIORITY_H
20
21#ifdef	__cplusplus
22extern "C" {
23#endif
24
25typedef enum zio_priority {
26	ZIO_PRIORITY_SYNC_READ,
27	ZIO_PRIORITY_SYNC_WRITE,	/* ZIL */
28	ZIO_PRIORITY_ASYNC_READ,	/* prefetch */
29	ZIO_PRIORITY_ASYNC_WRITE,	/* spa_sync() */
30	ZIO_PRIORITY_SCRUB,		/* asynchronous scrub/resilver reads */
31	ZIO_PRIORITY_NUM_QUEUEABLE,
32
33	ZIO_PRIORITY_NOW		/* non-queued i/os (e.g. free) */
34} zio_priority_t;
35
36#ifdef	__cplusplus
37}
38#endif
39
40#endif	/* _ZIO_PRIORITY_H */
41