sys/zio_impl.h File Reference

#include <sys/zfs_context.h>
#include <sys/zio.h>

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Defines
#define	ZIO_INTERLOCK_STAGES
#define	ZIO_INTERLOCK_PIPELINE   ZIO_INTERLOCK_STAGES
#define	ZIO_VDEV_IO_STAGES
#define	ZIO_VDEV_CHILD_PIPELINE
#define	ZIO_READ_COMMON_STAGES
#define	ZIO_READ_PHYS_PIPELINE   ZIO_READ_COMMON_STAGES
#define	ZIO_READ_PIPELINE
#define	ZIO_DDT_CHILD_READ_PIPELINE   ZIO_READ_COMMON_STAGES
#define	ZIO_DDT_READ_PIPELINE
#define	ZIO_WRITE_COMMON_STAGES
#define	ZIO_WRITE_PHYS_PIPELINE   ZIO_WRITE_COMMON_STAGES
#define	ZIO_REWRITE_PIPELINE
#define	ZIO_WRITE_PIPELINE
#define	ZIO_DDT_CHILD_WRITE_PIPELINE
#define	ZIO_DDT_WRITE_PIPELINE
#define	ZIO_GANG_STAGES
#define	ZIO_FREE_PIPELINE
#define	ZIO_DDT_FREE_PIPELINE
#define	ZIO_CLAIM_PIPELINE
#define	ZIO_IOCTL_PIPELINE
#define	ZIO_BLOCKING_STAGES
Enumerations
enum	zio_stage {   ZIO_STAGE_OPEN = 1 << 0, ZIO_STAGE_READ_BP_INIT = 1 << 1, ZIO_STAGE_FREE_BP_INIT = 1 << 2, ZIO_STAGE_ISSUE_ASYNC = 1 << 3,   ZIO_STAGE_WRITE_BP_INIT = 1 << 4, ZIO_STAGE_CHECKSUM_GENERATE = 1 << 5, ZIO_STAGE_DDT_READ_START = 1 << 6, ZIO_STAGE_DDT_READ_DONE = 1 << 7,   ZIO_STAGE_DDT_WRITE = 1 << 8, ZIO_STAGE_DDT_FREE = 1 << 9, ZIO_STAGE_GANG_ASSEMBLE = 1 << 10, ZIO_STAGE_GANG_ISSUE = 1 << 11,   ZIO_STAGE_DVA_ALLOCATE = 1 << 12, ZIO_STAGE_DVA_FREE = 1 << 13, ZIO_STAGE_DVA_CLAIM = 1 << 14, ZIO_STAGE_READY = 1 << 15,   ZIO_STAGE_VDEV_IO_START = 1 << 16, ZIO_STAGE_VDEV_IO_DONE = 1 << 17, ZIO_STAGE_VDEV_IO_ASSESS = 1 << 18, ZIO_STAGE_CHECKSUM_VERIFY = 1 << 19,   ZIO_STAGE_DONE = 1 << 20 }
	zio pipeline stage definitions More...
Functions
void	zio_inject_init (void)
void	zio_inject_fini (void)

---

Define Documentation

#define ZIO_BLOCKING_STAGES

Value:

(ZIO_STAGE_DVA_ALLOCATE |               \
        ZIO_STAGE_DVA_CLAIM |                   \
        ZIO_STAGE_VDEV_IO_START)

Definition at line 165 of file zio_impl.h.

#define ZIO_CLAIM_PIPELINE

Value:

(ZIO_INTERLOCK_STAGES |                 \
        ZIO_STAGE_DVA_CLAIM)

Definition at line 156 of file zio_impl.h.

#define ZIO_DDT_CHILD_READ_PIPELINE   ZIO_READ_COMMON_STAGES

Definition at line 100 of file zio_impl.h.

#define ZIO_DDT_CHILD_WRITE_PIPELINE

Value:

(ZIO_INTERLOCK_STAGES |                 \
        ZIO_VDEV_IO_STAGES |                    \
        ZIO_STAGE_DVA_ALLOCATE)

Definition at line 127 of file zio_impl.h.

#define ZIO_DDT_FREE_PIPELINE

Value:

(ZIO_INTERLOCK_STAGES |                 \
        ZIO_STAGE_FREE_BP_INIT |                \
        ZIO_STAGE_ISSUE_ASYNC |                 \
        ZIO_STAGE_DDT_FREE)

Definition at line 150 of file zio_impl.h.

#define ZIO_DDT_READ_PIPELINE

Value:

(ZIO_INTERLOCK_STAGES |                 \
        ZIO_STAGE_READ_BP_INIT |                \
        ZIO_STAGE_DDT_READ_START |              \
        ZIO_STAGE_DDT_READ_DONE)

Definition at line 103 of file zio_impl.h.

#define ZIO_DDT_WRITE_PIPELINE

Value:

(ZIO_INTERLOCK_STAGES |                 \
        ZIO_STAGE_ISSUE_ASYNC |                 \
        ZIO_STAGE_WRITE_BP_INIT |               \
        ZIO_STAGE_CHECKSUM_GENERATE |           \
        ZIO_STAGE_DDT_WRITE)

Definition at line 132 of file zio_impl.h.

#define ZIO_FREE_PIPELINE

Value:

(ZIO_INTERLOCK_STAGES |                 \
        ZIO_STAGE_FREE_BP_INIT |                \
        ZIO_STAGE_DVA_FREE |                    \
        ZIO_STAGE_VDEV_IO_START |               \
        ZIO_STAGE_VDEV_IO_ASSESS)

Definition at line 143 of file zio_impl.h.

#define ZIO_GANG_STAGES

Value:

(ZIO_STAGE_GANG_ASSEMBLE |              \
        ZIO_STAGE_GANG_ISSUE)

Definition at line 139 of file zio_impl.h.

#define ZIO_INTERLOCK_PIPELINE   ZIO_INTERLOCK_STAGES

Definition at line 76 of file zio_impl.h.

#define ZIO_INTERLOCK_STAGES

Value:

(ZIO_STAGE_READY |                      \
        ZIO_STAGE_DONE)

Definition at line 72 of file zio_impl.h.

#define ZIO_IOCTL_PIPELINE

Value:

(ZIO_INTERLOCK_STAGES |                 \
        ZIO_STAGE_VDEV_IO_START |               \
        ZIO_STAGE_VDEV_IO_ASSESS)

Definition at line 160 of file zio_impl.h.

#define ZIO_READ_COMMON_STAGES

Value:

(ZIO_INTERLOCK_STAGES |                 \
        ZIO_VDEV_IO_STAGES |                    \
        ZIO_STAGE_CHECKSUM_VERIFY)

Definition at line 88 of file zio_impl.h.

#define ZIO_READ_PHYS_PIPELINE   ZIO_READ_COMMON_STAGES

Definition at line 93 of file zio_impl.h.

#define ZIO_READ_PIPELINE

Value:

(ZIO_READ_COMMON_STAGES |               \
        ZIO_STAGE_READ_BP_INIT)

Definition at line 96 of file zio_impl.h.

#define ZIO_REWRITE_PIPELINE

Value:

(ZIO_WRITE_COMMON_STAGES |              \
        ZIO_STAGE_WRITE_BP_INIT)

Definition at line 118 of file zio_impl.h.

#define ZIO_VDEV_CHILD_PIPELINE

Value:

(ZIO_VDEV_IO_STAGES |                   \
        ZIO_STAGE_DONE)

Definition at line 84 of file zio_impl.h.

#define ZIO_VDEV_IO_STAGES

Value:

(ZIO_STAGE_VDEV_IO_START |              \
        ZIO_STAGE_VDEV_IO_DONE |                \
        ZIO_STAGE_VDEV_IO_ASSESS)

Definition at line 79 of file zio_impl.h.

#define ZIO_WRITE_COMMON_STAGES

Value:

(ZIO_INTERLOCK_STAGES |                 \
        ZIO_VDEV_IO_STAGES |                    \
        ZIO_STAGE_ISSUE_ASYNC |                 \
        ZIO_STAGE_CHECKSUM_GENERATE)

Definition at line 109 of file zio_impl.h.

#define ZIO_WRITE_PHYS_PIPELINE   ZIO_WRITE_COMMON_STAGES

Definition at line 115 of file zio_impl.h.

#define ZIO_WRITE_PIPELINE

Value:

(ZIO_WRITE_COMMON_STAGES |              \
        ZIO_STAGE_WRITE_BP_INIT |               \
        ZIO_STAGE_DVA_ALLOCATE)

Definition at line 122 of file zio_impl.h.

---

Enumeration Type Documentation

enum zio_stage

zio pipeline stage definitions

Enumerator:

ZIO_STAGE_OPEN	RWFCI.
ZIO_STAGE_READ_BP_INIT	R----.
ZIO_STAGE_FREE_BP_INIT	--F--
ZIO_STAGE_ISSUE_ASYNC	RWF--.
ZIO_STAGE_WRITE_BP_INIT	-W---
ZIO_STAGE_CHECKSUM_GENERATE	-W---
ZIO_STAGE_DDT_READ_START	R----.
ZIO_STAGE_DDT_READ_DONE	R----.
ZIO_STAGE_DDT_WRITE	-W---
ZIO_STAGE_DDT_FREE	--F--
ZIO_STAGE_GANG_ASSEMBLE	RWFC-.
ZIO_STAGE_GANG_ISSUE	RWFC-.
ZIO_STAGE_DVA_ALLOCATE	-W---
ZIO_STAGE_DVA_FREE	--F--
ZIO_STAGE_DVA_CLAIM	---C-
ZIO_STAGE_READY	RWFCI.
ZIO_STAGE_VDEV_IO_START	RWF-I.
ZIO_STAGE_VDEV_IO_DONE	RWF--.
ZIO_STAGE_VDEV_IO_ASSESS	RWF-I.
ZIO_STAGE_CHECKSUM_VERIFY	R----.
ZIO_STAGE_DONE	RWFCI.

Definition at line 39 of file zio_impl.h.

---

Function Documentation

void zio_inject_fini

(

void

)

Definition at line 512 of file zio_inject.c.

void zio_inject_init

(

void

)

Definition at line 504 of file zio_inject.c.