vdev_mirror.c File Reference

Virtual device vector for mirroring. More...

#include <sys/zfs_context.h>
#include <sys/spa.h>
#include <sys/vdev_impl.h>
#include <sys/zio.h>
#include <sys/fs/zfs.h>

Include dependency graph for vdev_mirror.c:

Go to the source code of this file.

Data Structures
struct	mirror_child
struct	mirror_map
Typedefs
typedef struct mirror_child	mirror_child_t
typedef struct mirror_map	mirror_map_t
Functions
static void	vdev_mirror_map_free (zio_t *zio)
static mirror_map_t *	vdev_mirror_map_alloc (zio_t *zio)
static int	vdev_mirror_open (vdev_t *vd, uint64_t *asize, uint64_t *max_asize, uint64_t *ashift)
static void	vdev_mirror_close (vdev_t *vd)
static void	vdev_mirror_child_done (zio_t *zio)
static void	vdev_mirror_scrub_done (zio_t *zio)
static int	vdev_mirror_child_select (zio_t *zio)
	Try to find a child whose DTL doesn't contain the block we want to read.
static int	vdev_mirror_io_start (zio_t *zio)
static int	vdev_mirror_worst_error (mirror_map_t *mm)
static void	vdev_mirror_io_done (zio_t *zio)
static void	vdev_mirror_state_change (vdev_t *vd, int faulted, int degraded)
Variables
int	vdev_mirror_shift = 21
static const zio_vsd_ops_t	vdev_mirror_vsd_ops
vdev_ops_t	vdev_mirror_ops
vdev_ops_t	vdev_replacing_ops
vdev_ops_t	vdev_spare_ops

---

Detailed Description

Virtual device vector for mirroring.

Definition in file vdev_mirror.c.

---

Typedef Documentation

typedef struct mirror_child mirror_child_t

typedef struct mirror_map mirror_map_t

---

Function Documentation

static void vdev_mirror_child_done

(

zio_t *

zio

)

[static]

Definition at line 178 of file vdev_mirror.c.

static int vdev_mirror_child_select

(

zio_t *

zio

)

[static]

Try to find a child whose DTL doesn't contain the block we want to read.

If we can't, try the read on any vdev we haven't already tried.

Definition at line 217 of file vdev_mirror.c.

static void vdev_mirror_close

(

vdev_t *

vd

)

[static]

Definition at line 171 of file vdev_mirror.c.

static void vdev_mirror_io_done

(

zio_t *

zio

)

[static]

Definition at line 334 of file vdev_mirror.c.

static int vdev_mirror_io_start

(

zio_t *

zio

)

[static]

Definition at line 265 of file vdev_mirror.c.

static mirror_map_t* vdev_mirror_map_alloc

(

zio_t *

zio

)

[static]

Definition at line 74 of file vdev_mirror.c.

static void vdev_mirror_map_free

(

zio_t *

zio

)

[static]

Definition at line 61 of file vdev_mirror.c.

static int vdev_mirror_open	(	vdev_t *	vd,
		uint64_t *	asize,
		uint64_t *	max_asize,
		uint64_t *	ashift
	)		[static]

Definition at line 135 of file vdev_mirror.c.

static void vdev_mirror_scrub_done

(

zio_t *

zio

)

[static]

Definition at line 188 of file vdev_mirror.c.

static void vdev_mirror_state_change	(	vdev_t *	vd,
		int	faulted,
		int	degraded
	)		[static]

Definition at line 447 of file vdev_mirror.c.

static int vdev_mirror_worst_error

(

mirror_map_t *

mm

)

[static]

Definition at line 320 of file vdev_mirror.c.

---

Variable Documentation

vdev_ops_t vdev_mirror_ops

Initial value:

 {
        vdev_mirror_open,
        vdev_mirror_close,
        vdev_default_asize,
        vdev_mirror_io_start,
        vdev_mirror_io_done,
        vdev_mirror_state_change,
        NULL,
        NULL,
        VDEV_TYPE_MIRROR,       
        B_FALSE                 
}

Definition at line 458 of file vdev_mirror.c.

int vdev_mirror_shift = 21

Definition at line 58 of file vdev_mirror.c.

const zio_vsd_ops_t vdev_mirror_vsd_ops [static]

Initial value:

 {
        vdev_mirror_map_free,
        zio_vsd_default_cksum_report
}

Definition at line 68 of file vdev_mirror.c.

vdev_ops_t vdev_replacing_ops

Initial value:

 {
        vdev_mirror_open,
        vdev_mirror_close,
        vdev_default_asize,
        vdev_mirror_io_start,
        vdev_mirror_io_done,
        vdev_mirror_state_change,
        NULL,
        NULL,
        VDEV_TYPE_REPLACING,    
        B_FALSE                 
}

Definition at line 471 of file vdev_mirror.c.

vdev_ops_t vdev_spare_ops

Initial value:

 {
        vdev_mirror_open,
        vdev_mirror_close,
        vdev_default_asize,
        vdev_mirror_io_start,
        vdev_mirror_io_done,
        vdev_mirror_state_change,
        NULL,
        NULL,
        VDEV_TYPE_SPARE,        
        B_FALSE                 
}

Definition at line 484 of file vdev_mirror.c.