zilog Struct Reference

Stable storage intent log management structure. More...

#include <zil_impl.h>

Collaboration diagram for zilog:

Data Fields
kmutex_t	zl_lock
	protects most zilog_t fields
struct dsl_pool *	zl_dmu_pool
	DSL pool.
spa_t *	zl_spa
	handle for read/write log
const zil_header_t *	zl_header
	log header buffer
objset_t *	zl_os
	object set we're logging
zil_get_data_t *	zl_get_data
	callback to get object content
zio_t *	zl_root_zio
	log writer root zio
uint64_t	zl_lr_seq
	on-disk log record sequence number
uint64_t	zl_commit_lr_seq
	last committed on-disk lr seq
uint64_t	zl_destroy_txg
	txg of last zil_destroy()
uint64_t	zl_replayed_seq [TXG_SIZE]
	last replayed rec seq
uint64_t	zl_replaying_seq
	current replay seq number
uint32_t	zl_suspend
	log suspend count
kcondvar_t	zl_cv_writer
	log writer thread completion
kcondvar_t	zl_cv_suspend
	log suspend completion
uint8_t	zl_suspending
	log is currently suspending
uint8_t	zl_keep_first
	keep first log block in destroy
uint8_t	zl_replay
	replaying records while set
uint8_t	zl_stop_sync
	for debugging
uint8_t	zl_writer
	boolean: write setup in progress
uint8_t	zl_logbias
	latency or throughput
uint8_t	zl_sync
	synchronous or asynchronous
int	zl_parse_error
	last zil_parse() error
uint64_t	zl_parse_blk_seq
	highest blk seq on last parse
uint64_t	zl_parse_lr_seq
	highest lr seq on last parse
uint64_t	zl_parse_blk_count
	number of blocks parsed
uint64_t	zl_parse_lr_count
	number of log records parsed
uint64_t	zl_next_batch
	next batch number
uint64_t	zl_com_batch
	committed batch number
kcondvar_t	zl_cv_batch [2]
	batch condition variables
itxg_t	zl_itxg [TXG_SIZE]
	intent log txg chains
list_t	zl_itx_commit_list
	itx list to be committed
uint64_t	zl_itx_list_sz
	total size of records on list
uint64_t	zl_cur_used
	current commit log size used
list_t	zl_lwb_list
	in-flight log write list
kmutex_t	zl_vdev_lock
	protects zl_vdev_tree
avl_tree_t	zl_vdev_tree
	vdevs to flush in zil_commit()
taskq_t *	zl_clean_taskq
	runs lwb and itx clean tasks
avl_tree_t	zl_bp_tree
	track bps during log parse
clock_t	zl_replay_time
	lbolt of when replay started
uint64_t	zl_replay_blks
	number of log blocks replayed
zil_header_t	zl_old_header
	debugging aid
uint_t	zl_prev_blks [ZIL_PREV_BLKS]
	size - sector rounded
uint_t	zl_prev_rotor
	rotor for zl_prev[]
txg_node_t	zl_dirty_link
	protected by dp_dirty_zilogs list

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Detailed Description

Stable storage intent log management structure.

One per dataset.

Definition at line 89 of file zil_impl.h.

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Field Documentation

avl_tree_t zilog::zl_bp_tree

track bps during log parse

Definition at line 128 of file zil_impl.h.

taskq_t* zilog::zl_clean_taskq

runs lwb and itx clean tasks

Definition at line 127 of file zil_impl.h.

uint64_t zilog::zl_com_batch

committed batch number

Definition at line 118 of file zil_impl.h.

uint64_t zilog::zl_commit_lr_seq

last committed on-disk lr seq

Definition at line 98 of file zil_impl.h.

uint64_t zilog::zl_cur_used

current commit log size used

Definition at line 123 of file zil_impl.h.

kcondvar_t zilog::zl_cv_batch[2]

batch condition variables

Definition at line 119 of file zil_impl.h.

kcondvar_t zilog::zl_cv_suspend

log suspend completion

Definition at line 104 of file zil_impl.h.

kcondvar_t zilog::zl_cv_writer

log writer thread completion

Definition at line 103 of file zil_impl.h.

uint64_t zilog::zl_destroy_txg

txg of last zil_destroy()

Definition at line 99 of file zil_impl.h.

txg_node_t zilog::zl_dirty_link

protected by dp_dirty_zilogs list

Definition at line 134 of file zil_impl.h.

struct dsl_pool* zilog::zl_dmu_pool

DSL pool.

Definition at line 91 of file zil_impl.h.

zil_get_data_t* zilog::zl_get_data

callback to get object content

Definition at line 95 of file zil_impl.h.

const zil_header_t* zilog::zl_header

log header buffer

Definition at line 93 of file zil_impl.h.

list_t zilog::zl_itx_commit_list

itx list to be committed

Definition at line 121 of file zil_impl.h.

uint64_t zilog::zl_itx_list_sz

total size of records on list

Definition at line 122 of file zil_impl.h.

itxg_t zilog::zl_itxg[TXG_SIZE]

intent log txg chains

Definition at line 120 of file zil_impl.h.

uint8_t zilog::zl_keep_first

keep first log block in destroy

Definition at line 106 of file zil_impl.h.

kmutex_t zilog::zl_lock

protects most zilog_t fields

Definition at line 90 of file zil_impl.h.

uint8_t zilog::zl_logbias

latency or throughput

Definition at line 110 of file zil_impl.h.

uint64_t zilog::zl_lr_seq

on-disk log record sequence number

Definition at line 97 of file zil_impl.h.

list_t zilog::zl_lwb_list

in-flight log write list

Definition at line 124 of file zil_impl.h.

uint64_t zilog::zl_next_batch

next batch number

Definition at line 117 of file zil_impl.h.

zil_header_t zilog::zl_old_header

debugging aid

Definition at line 131 of file zil_impl.h.

objset_t* zilog::zl_os

object set we're logging

Definition at line 94 of file zil_impl.h.

uint64_t zilog::zl_parse_blk_count

number of blocks parsed

Definition at line 115 of file zil_impl.h.

uint64_t zilog::zl_parse_blk_seq

highest blk seq on last parse

Definition at line 113 of file zil_impl.h.

int zilog::zl_parse_error

last zil_parse() error

Definition at line 112 of file zil_impl.h.

uint64_t zilog::zl_parse_lr_count

number of log records parsed

Definition at line 116 of file zil_impl.h.

uint64_t zilog::zl_parse_lr_seq

highest lr seq on last parse

Definition at line 114 of file zil_impl.h.

uint_t zilog::zl_prev_blks[ZIL_PREV_BLKS]

size - sector rounded

Definition at line 132 of file zil_impl.h.

uint_t zilog::zl_prev_rotor

rotor for zl_prev[]

Definition at line 133 of file zil_impl.h.

uint8_t zilog::zl_replay

replaying records while set

Definition at line 107 of file zil_impl.h.

uint64_t zilog::zl_replay_blks

number of log blocks replayed

Definition at line 130 of file zil_impl.h.

clock_t zilog::zl_replay_time

lbolt of when replay started

Definition at line 129 of file zil_impl.h.

uint64_t zilog::zl_replayed_seq[TXG_SIZE]

last replayed rec seq

Definition at line 100 of file zil_impl.h.

uint64_t zilog::zl_replaying_seq

current replay seq number

Definition at line 101 of file zil_impl.h.

zio_t* zilog::zl_root_zio

log writer root zio

Definition at line 96 of file zil_impl.h.

spa_t* zilog::zl_spa

handle for read/write log

Definition at line 92 of file zil_impl.h.

uint8_t zilog::zl_stop_sync

for debugging

Definition at line 108 of file zil_impl.h.

uint32_t zilog::zl_suspend

log suspend count

Definition at line 102 of file zil_impl.h.

uint8_t zilog::zl_suspending

log is currently suspending

Definition at line 105 of file zil_impl.h.

uint8_t zilog::zl_sync

synchronous or asynchronous

Definition at line 111 of file zil_impl.h.

kmutex_t zilog::zl_vdev_lock

protects zl_vdev_tree

Definition at line 125 of file zil_impl.h.

avl_tree_t zilog::zl_vdev_tree

vdevs to flush in zil_commit()

Definition at line 126 of file zil_impl.h.

uint8_t zilog::zl_writer

boolean: write setup in progress

Definition at line 109 of file zil_impl.h.

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The documentation for this struct was generated from the following file:

• sys/zil_impl.h