#include <sys/dsl_pool.h>
#include <sys/dsl_dataset.h>
#include <sys/dsl_prop.h>
#include <sys/dsl_dir.h>
#include <sys/dsl_synctask.h>
#include <sys/dsl_scan.h>
#include <sys/dnode.h>
#include <sys/dmu_tx.h>
#include <sys/dmu_objset.h>
#include <sys/arc.h>
#include <sys/zap.h>
#include <sys/zio.h>
#include <sys/zfs_context.h>
#include <sys/fs/zfs.h>
#include <sys/zfs_znode.h>
#include <sys/spa_impl.h>
#include <sys/dsl_deadlist.h>
#include <sys/bptree.h>
#include <sys/zfeature.h>
#include <sys/zil_impl.h>

Include dependency graph for dsl_pool.c:

Functions
	SYSCTL_DECL (_vfs_zfs)
	TUNABLE_INT ("vfs.zfs.no_write_throttle",&zfs_no_write_throttle)
	SYSCTL_INT (_vfs_zfs, OID_AUTO, no_write_throttle, CTLFLAG_RDTUN,&zfs_no_write_throttle, 0,"")
	TUNABLE_INT ("vfs.zfs.write_limit_shift",&zfs_write_limit_shift)
	SYSCTL_INT (_vfs_zfs, OID_AUTO, write_limit_shift, CTLFLAG_RDTUN,&zfs_write_limit_shift, 0,"2^N of physical memory")
	SYSCTL_DECL (_vfs_zfs_txg)
	TUNABLE_INT ("vfs.zfs.txg.synctime_ms",&zfs_txg_synctime_ms)
	SYSCTL_INT (_vfs_zfs_txg, OID_AUTO, synctime_ms, CTLFLAG_RDTUN,&zfs_txg_synctime_ms, 0,"Target milliseconds to sync a txg")
	TUNABLE_QUAD ("vfs.zfs.write_limit_min",&zfs_write_limit_min)
	SYSCTL_UQUAD (_vfs_zfs, OID_AUTO, write_limit_min, CTLFLAG_RDTUN,&zfs_write_limit_min, 0,"Minimum write limit")
	TUNABLE_QUAD ("vfs.zfs.write_limit_max",&zfs_write_limit_max)
	SYSCTL_UQUAD (_vfs_zfs, OID_AUTO, write_limit_max, CTLFLAG_RDTUN,&zfs_write_limit_max, 0,"Maximum data payload per txg")
	TUNABLE_QUAD ("vfs.zfs.write_limit_inflated",&zfs_write_limit_inflated)
	SYSCTL_UQUAD (_vfs_zfs, OID_AUTO, write_limit_inflated, CTLFLAG_RDTUN,&zfs_write_limit_inflated, 0,"")
	TUNABLE_QUAD ("vfs.zfs.write_limit_override",&zfs_write_limit_override)
	SYSCTL_UQUAD (_vfs_zfs, OID_AUTO, write_limit_override, CTLFLAG_RDTUN,&zfs_write_limit_override, 0,"")
int	dsl_pool_open_special_dir (dsl_pool_t dp, const char name, dsl_dir_t **ddp)
static dsl_pool_t *	dsl_pool_open_impl (spa_t *spa, uint64_t txg)
int	dsl_pool_init (spa_t spa, uint64_t txg, dsl_pool_t *dpp)
int	dsl_pool_open (dsl_pool_t *dp)
void	dsl_pool_close (dsl_pool_t *dp)
dsl_pool_t *	dsl_pool_create (spa_t spa, nvlist_t zplprops, uint64_t txg)
void	dsl_pool_mos_diduse_space (dsl_pool_t *dp, int64_t used, int64_t comp, int64_t uncomp)
	Account for the meta-objset space in its placeholder dsl_dir.
static int	deadlist_enqueue_cb (void arg, const blkptr_t bp, dmu_tx_t *tx)
void	dsl_pool_sync (dsl_pool_t *dp, uint64_t txg)
void	dsl_pool_sync_done (dsl_pool_t *dp, uint64_t txg)
int	dsl_pool_sync_context (dsl_pool_t *dp)
	TRUE if the current thread is the tx_sync_thread or if we are being called from SPA context during pool initialization.
uint64_t	dsl_pool_adjustedsize (dsl_pool_t *dp, boolean_t netfree)
int	dsl_pool_tempreserve_space (dsl_pool_t dp, uint64_t space, dmu_tx_t tx)
void	dsl_pool_tempreserve_clear (dsl_pool_t dp, int64_t space, dmu_tx_t tx)
void	dsl_pool_memory_pressure (dsl_pool_t *dp)
void	dsl_pool_willuse_space (dsl_pool_t dp, int64_t space, dmu_tx_t tx)
static int	upgrade_clones_cb (spa_t spa, uint64_t dsobj, const char dsname, void *arg)
void	dsl_pool_upgrade_clones (dsl_pool_t dp, dmu_tx_t tx)
static int	upgrade_dir_clones_cb (spa_t spa, uint64_t dsobj, const char dsname, void *arg)
void	dsl_pool_upgrade_dir_clones (dsl_pool_t dp, dmu_tx_t tx)
void	dsl_pool_create_origin (dsl_pool_t dp, dmu_tx_t tx)
taskq_t *	dsl_pool_vnrele_taskq (dsl_pool_t *dp)
void	dsl_pool_clean_tmp_userrefs (dsl_pool_t *dp)
	Walk through the pool-wide zap object of temporary snapshot user holds and release them.
void	dsl_pool_user_hold_create_obj (dsl_pool_t dp, dmu_tx_t tx)
	Create the pool-wide zap object for storing temporary snapshot holds.
static int	dsl_pool_user_hold_rele_impl (dsl_pool_t dp, uint64_t dsobj, const char tag, uint64_t now, dmu_tx_t tx, boolean_t holding)
int	dsl_pool_user_hold (dsl_pool_t dp, uint64_t dsobj, const char tag, uint64_t now, dmu_tx_t tx)
	Add a temporary hold for the given dataset object and tag.
int	dsl_pool_user_release (dsl_pool_t dp, uint64_t dsobj, const char tag, dmu_tx_t *tx)
	Release a temporary hold for the given dataset object and tag.
Variables
int	zfs_no_write_throttle = 0
int	zfs_write_limit_shift = 3
	1/8th of physical memory
int	zfs_txg_synctime_ms = 1000
	target millisecs to sync a txg
uint64_t	zfs_write_limit_min = 32 << 20
	min write limit is 32MB
uint64_t	zfs_write_limit_max = 0
	max data payload per txg
uint64_t	zfs_write_limit_inflated = 0
uint64_t	zfs_write_limit_override = 0
kmutex_t	zfs_write_limit_lock
static pgcnt_t	old_physmem = 0

Function Documentation

static int deadlist_enqueue_cb	(	void *	arg,
		const blkptr_t *	bp,
		dmu_tx_t *	tx
	)		`[static]`

Definition at line 361 of file dsl_pool.c.

uint64_t dsl_pool_adjustedsize	(	dsl_pool_t *	dp,
		boolean_t	netfree
	)

Definition at line 586 of file dsl_pool.c.

void dsl_pool_clean_tmp_userrefs ( dsl_pool_t * dp )

Walk through the pool-wide zap object of temporary snapshot user holds and release them.

Definition at line 863 of file dsl_pool.c.

void dsl_pool_close ( dsl_pool_t * dp )

Definition at line 238 of file dsl_pool.c.

dsl_pool_t* dsl_pool_create	(	spa_t *	spa,
		nvlist_t *	zplprops,
		uint64_t	txg
	)

Definition at line 279 of file dsl_pool.c.

void dsl_pool_create_origin	(	dsl_pool_t *	dp,
		dmu_tx_t *	tx
	)

Definition at line 832 of file dsl_pool.c.

int dsl_pool_init	(	spa_t *	spa,
		uint64_t	txg,
		dsl_pool_t **	dpp
	)

Definition at line 134 of file dsl_pool.c.

void dsl_pool_memory_pressure ( dsl_pool_t * dp )

Definition at line 658 of file dsl_pool.c.

void dsl_pool_mos_diduse_space	(	dsl_pool_t *	dp,
		int64_t	used,
		int64_t	comp,
		int64_t	uncomp
	)

Account for the meta-objset space in its placeholder dsl_dir.

Definition at line 349 of file dsl_pool.c.

int dsl_pool_open ( dsl_pool_t * dp )

Definition at line 150 of file dsl_pool.c.

static dsl_pool_t* dsl_pool_open_impl	(	spa_t *	spa,
		uint64_t	txg
	)		`[static]`

Definition at line 104 of file dsl_pool.c.

int dsl_pool_open_special_dir	(	dsl_pool_t *	dp,
		const char *	name,
		dsl_dir_t **	ddp
	)

Definition at line 89 of file dsl_pool.c.

void dsl_pool_sync	(	dsl_pool_t *	dp,
		uint64_t	txg
	)

Definition at line 372 of file dsl_pool.c.

int dsl_pool_sync_context ( dsl_pool_t * dp )

TRUE if the current thread is the tx_sync_thread or if we are being called from SPA context during pool initialization.

Definition at line 579 of file dsl_pool.c.

void dsl_pool_sync_done	(	dsl_pool_t *	dp,
		uint64_t	txg
	)

Definition at line 560 of file dsl_pool.c.

void dsl_pool_tempreserve_clear	(	dsl_pool_t *	dp,
		int64_t	space,
		dmu_tx_t *	tx
	)

Definition at line 651 of file dsl_pool.c.

int dsl_pool_tempreserve_space	(	dsl_pool_t *	dp,
		uint64_t	space,
		dmu_tx_t *	tx
	)

Definition at line 609 of file dsl_pool.c.

void dsl_pool_upgrade_clones	(	dsl_pool_t *	dp,
		dmu_tx_t *	tx
	)

Definition at line 763 of file dsl_pool.c.

void dsl_pool_upgrade_dir_clones	(	dsl_pool_t *	dp,
		dmu_tx_t *	tx
	)

Definition at line 806 of file dsl_pool.c.

int dsl_pool_user_hold	(	dsl_pool_t *	dp,
		uint64_t	dsobj,
		const char *	tag,
		uint64_t *	now,
		dmu_tx_t *	tx
	)

Add a temporary hold for the given dataset object and tag.

Definition at line 943 of file dsl_pool.c.

void dsl_pool_user_hold_create_obj	(	dsl_pool_t *	dp,
		dmu_tx_t *	tx
	)

Create the pool-wide zap object for storing temporary snapshot holds.

Definition at line 893 of file dsl_pool.c.

static int dsl_pool_user_hold_rele_impl	(	dsl_pool_t *	dp,
		uint64_t	dsobj,
		const char *	tag,
		uint64_t *	now,
		dmu_tx_t *	tx,
		boolean_t	holding
	)		`[static]`

Definition at line 905 of file dsl_pool.c.

int dsl_pool_user_release	(	dsl_pool_t *	dp,
		uint64_t	dsobj,
		const char *	tag,
		dmu_tx_t *	tx
	)

Release a temporary hold for the given dataset object and tag.

Definition at line 953 of file dsl_pool.c.

taskq_t* dsl_pool_vnrele_taskq ( dsl_pool_t * dp )

Definition at line 853 of file dsl_pool.c.

void dsl_pool_willuse_space	(	dsl_pool_t *	dp,
		int64_t	space,
		dmu_tx_t *	tx
	)

Definition at line 675 of file dsl_pool.c.

SYSCTL_DECL ( _vfs_zfs )

SYSCTL_DECL ( _vfs_zfs_txg )

SYSCTL_INT	(	_vfs_zfs_txg	,
		OID_AUTO	,
		synctime_ms	,
		CTLFLAG_RDTUN	,
		&	zfs_txg_synctime_ms,
		0	,
		"Target milliseconds to sync a txg"
	)

SYSCTL_INT	(	_vfs_zfs	,
		OID_AUTO	,
		no_write_throttle	,
		CTLFLAG_RDTUN	,
		&	zfs_no_write_throttle,
		0	,
		""
	)

SYSCTL_INT	(	_vfs_zfs	,
		OID_AUTO	,
		write_limit_shift	,
		CTLFLAG_RDTUN	,
		&	zfs_write_limit_shift,
		0	,
		"2^N of physical memory"
	)

SYSCTL_UQUAD	(	_vfs_zfs	,
		OID_AUTO	,
		write_limit_max	,
		CTLFLAG_RDTUN	,
		&	zfs_write_limit_max,
		0	,
		"Maximum data payload per txg"
	)

SYSCTL_UQUAD	(	_vfs_zfs	,
		OID_AUTO	,
		write_limit_override	,
		CTLFLAG_RDTUN	,
		&	zfs_write_limit_override,
		0	,
		""
	)

SYSCTL_UQUAD	(	_vfs_zfs	,
		OID_AUTO	,
		write_limit_min	,
		CTLFLAG_RDTUN	,
		&	zfs_write_limit_min,
		0	,
		"Minimum write limit"
	)

SYSCTL_UQUAD	(	_vfs_zfs	,
		OID_AUTO	,
		write_limit_inflated	,
		CTLFLAG_RDTUN	,
		&	zfs_write_limit_inflated,
		0	,
		""
	)

TUNABLE_INT	(	"vfs.zfs.txg.synctime_ms"	,
		&	zfs_txg_synctime_ms
	)

TUNABLE_INT	(	"vfs.zfs.no_write_throttle"	,
		&	zfs_no_write_throttle
	)

TUNABLE_INT	(	"vfs.zfs.write_limit_shift"	,
		&	zfs_write_limit_shift
	)

TUNABLE_QUAD	(	"vfs.zfs.write_limit_min"	,
		&	zfs_write_limit_min
	)

TUNABLE_QUAD	(	"vfs.zfs.write_limit_override"	,
		&	zfs_write_limit_override
	)

TUNABLE_QUAD	(	"vfs.zfs.write_limit_inflated"	,
		&	zfs_write_limit_inflated
	)

TUNABLE_QUAD	(	"vfs.zfs.write_limit_max"	,
		&	zfs_write_limit_max
	)

static int upgrade_clones_cb	(	spa_t *	spa,
		uint64_t	dsobj,
		const char *	dsname,
		void *	arg
	)		`[static]`

Definition at line 686 of file dsl_pool.c.

static int upgrade_dir_clones_cb	(	spa_t *	spa,
		uint64_t	dsobj,
		const char *	dsname,
		void *	arg
	)		`[static]`

Definition at line 774 of file dsl_pool.c.

Variable Documentation

pgcnt_t old_physmem = 0 [static]

Definition at line 61 of file dsl_pool.c.

kmutex_t zfs_write_limit_lock

Definition at line 59 of file dsl_pool.c.

dsl_pool.c File Reference

Functions

Variables

Function Documentation

Variable Documentation