dsl_prop.c File Reference

#include <sys/zfs_context.h>
#include <sys/dmu.h>
#include <sys/dmu_objset.h>
#include <sys/dmu_tx.h>
#include <sys/dsl_dataset.h>
#include <sys/dsl_dir.h>
#include <sys/dsl_prop.h>
#include <sys/dsl_synctask.h>
#include <sys/spa.h>
#include <sys/zap.h>
#include <sys/fs/zfs.h>
#include "zfs_prop.h"

Include dependency graph for dsl_prop.c:

Go to the source code of this file.

Defines
#define	ZPROP_INHERIT_SUFFIX   "$inherit"
#define	ZPROP_RECVD_SUFFIX   "$recvd"
Typedefs
typedef enum dsl_prop_getflags	dsl_prop_getflags_t
Enumerations
enum	dsl_prop_getflags { DSL_PROP_GET_INHERITING = 0x1, DSL_PROP_GET_SNAPSHOT = 0x2, DSL_PROP_GET_LOCAL = 0x4, DSL_PROP_GET_RECEIVED = 0x8 }
Functions
static int	dodefault (const char *propname, int intsz, int numints, void *buf)
int	dsl_prop_get_dd (dsl_dir_t *dd, const char *propname, int intsz, int numints, void *buf, char *setpoint, boolean_t snapshot)
int	dsl_prop_get_ds (dsl_dataset_t *ds, const char *propname, int intsz, int numints, void *buf, char *setpoint)
int	dsl_prop_register (dsl_dataset_t *ds, const char *propname, dsl_prop_changed_cb_t *callback, void *cbarg)
	Register interest in the named property.
int	dsl_prop_get (const char *dsname, const char *propname, int intsz, int numints, void *buf, char *setpoint)
int	dsl_prop_get_integer (const char *ddname, const char *propname, uint64_t *valuep, char *setpoint)
	Get the current property value.
void	dsl_prop_setarg_init_uint64 (dsl_prop_setarg_t *psa, const char *propname, zprop_source_t source, uint64_t *value)
int	dsl_prop_predict_sync (dsl_dir_t *dd, dsl_prop_setarg_t *psa)
	Predict the effective value of the given special property if it were set with the given value and source.
int	dsl_prop_unregister (dsl_dataset_t *ds, const char *propname, dsl_prop_changed_cb_t *callback, void *cbarg)
	Unregister this callback.
int	dsl_prop_numcb (dsl_dataset_t *ds)
	Return the number of callbacks that are registered for this dataset.
static void	dsl_prop_changed_notify (dsl_pool_t *dp, uint64_t ddobj, const char *propname, uint64_t value, int first)
void	dsl_prop_set_sync (void *arg1, void *arg2, dmu_tx_t *tx)
void	dsl_props_set_sync (void *arg1, void *arg2, dmu_tx_t *tx)
void	dsl_dir_prop_set_uint64_sync (dsl_dir_t *dd, const char *name, uint64_t val, dmu_tx_t *tx)
int	dsl_prop_set (const char *dsname, const char *propname, zprop_source_t source, int intsz, int numints, const void *buf)
int	dsl_props_set (const char *dsname, zprop_source_t source, nvlist_t *props)
static int	dsl_prop_get_all_impl (objset_t *mos, uint64_t propobj, const char *setpoint, dsl_prop_getflags_t flags, nvlist_t *nv)
static int	dsl_prop_get_all_ds (dsl_dataset_t *ds, nvlist_t **nvp, dsl_prop_getflags_t flags)
	Iterate over all properties for this dataset and return them in an nvlist.
boolean_t	dsl_prop_get_hasrecvd (objset_t *os)
static void	dsl_prop_set_hasrecvd_impl (objset_t *os, zprop_source_t source)
void	dsl_prop_set_hasrecvd (objset_t *os)
	Call after successfully receiving properties to ensure that only the first receive on or after SPA_VERSION_RECVD_PROPS blows away local properties.
void	dsl_prop_unset_hasrecvd (objset_t *os)
int	dsl_prop_get_all (objset_t *os, nvlist_t **nvp)
int	dsl_prop_get_received (objset_t *os, nvlist_t **nvp)
void	dsl_prop_nvlist_add_uint64 (nvlist_t *nv, zfs_prop_t prop, uint64_t value)
void	dsl_prop_nvlist_add_string (nvlist_t *nv, zfs_prop_t prop, const char *value)

---

Define Documentation

#define ZPROP_INHERIT_SUFFIX   "$inherit"

Definition at line 39 of file dsl_prop.c.

#define ZPROP_RECVD_SUFFIX   "$recvd"

Definition at line 40 of file dsl_prop.c.

---

Typedef Documentation

typedef enum dsl_prop_getflags dsl_prop_getflags_t

---

Enumeration Type Documentation

enum dsl_prop_getflags

Enumerator:

DSL_PROP_GET_INHERITING
DSL_PROP_GET_SNAPSHOT
DSL_PROP_GET_LOCAL
DSL_PROP_GET_RECEIVED

Definition at line 872 of file dsl_prop.c.

---

Function Documentation

static int dodefault	(	const char *	propname,
		int	intsz,
		int	numints,
		void *	buf
	)		[static]

Definition at line 43 of file dsl_prop.c.

void dsl_dir_prop_set_uint64_sync	(	dsl_dir_t *	dd,
		const char *	name,
		uint64_t	val,
		dmu_tx_t *	tx
	)

Definition at line 761 of file dsl_prop.c.

static void dsl_prop_changed_notify	(	dsl_pool_t *	dp,
		uint64_t	ddobj,
		const char *	propname,
		uint64_t	value,
		int	first
	)		[static]

Definition at line 490 of file dsl_prop.c.

int dsl_prop_get	(	const char *	dsname,
		const char *	propname,
		int	intsz,
		int	numints,
		void *	buf,
		char *	setpoint
	)

Definition at line 268 of file dsl_prop.c.

int dsl_prop_get_all	(	objset_t *	os,
		nvlist_t **	nvp
	)

Definition at line 1099 of file dsl_prop.c.

static int dsl_prop_get_all_ds	(	dsl_dataset_t *	ds,
		nvlist_t **	nvp,
		dsl_prop_getflags_t	flags
	)		[static]

Iterate over all properties for this dataset and return them in an nvlist.

Definition at line 1005 of file dsl_prop.c.

static int dsl_prop_get_all_impl	(	objset_t *	mos,
		uint64_t	propobj,
		const char *	setpoint,
		dsl_prop_getflags_t	flags,
		nvlist_t *	nv
	)		[static]

Definition at line 880 of file dsl_prop.c.

int dsl_prop_get_dd	(	dsl_dir_t *	dd,
		const char *	propname,
		int	intsz,
		int	numints,
		void *	buf,
		char *	setpoint,
		boolean_t	snapshot
	)

Definition at line 72 of file dsl_prop.c.

int dsl_prop_get_ds	(	dsl_dataset_t *	ds,
		const char *	propname,
		int	intsz,
		int	numints,
		void *	buf,
		char *	setpoint
	)

Definition at line 161 of file dsl_prop.c.

boolean_t dsl_prop_get_hasrecvd

(

objset_t *

os

)

Definition at line 1049 of file dsl_prop.c.

int dsl_prop_get_integer	(	const char *	ddname,
		const char *	propname,
		uint64_t *	valuep,
		char *	setpoint
	)

Get the current property value.

It may have changed by the time this function returns, so it is NOT safe to follow up with dsl_prop_register() and assume that the value has not changed in between.

Returns:

0 on success or ENOENT if ddname is invalid.

Definition at line 295 of file dsl_prop.c.

int dsl_prop_get_received	(	objset_t *	os,
		nvlist_t **	nvp
	)

Definition at line 1105 of file dsl_prop.c.

int dsl_prop_numcb

(

dsl_dataset_t *

ds

)

Return the number of callbacks that are registered for this dataset.

Definition at line 472 of file dsl_prop.c.

void dsl_prop_nvlist_add_string	(	nvlist_t *	nv,
		zfs_prop_t	prop,
		const char *	value
	)

Definition at line 1141 of file dsl_prop.c.

void dsl_prop_nvlist_add_uint64	(	nvlist_t *	nv,
		zfs_prop_t	prop,
		uint64_t	value
	)

Definition at line 1118 of file dsl_prop.c.

int dsl_prop_predict_sync	(	dsl_dir_t *	dd,
		dsl_prop_setarg_t *	psa
	)

Predict the effective value of the given special property if it were set with the given value and source.

This is not a general purpose function. It exists only to handle the special requirements of the quota and reservation properties. The fact that these properties are non-inheritable greatly simplifies the prediction logic.

Returns:

0 on success, a positive error code on failure, or -1 if called with a property not handled by this function.

Definition at line 325 of file dsl_prop.c.

int dsl_prop_register	(	dsl_dataset_t *	ds,
		const char *	propname,
		dsl_prop_changed_cb_t *	callback,
		void *	cbarg
	)

Register interest in the named property.

We'll call the callback once to notify it of the current property value, and again each time the property changes, until this callback is unregistered.

Returns:

0 on success or errno if the prop is not an integer value.

Definition at line 229 of file dsl_prop.c.

int dsl_prop_set	(	const char *	dsname,
		const char *	propname,
		zprop_source_t	source,
		int	intsz,
		int	numints,
		const void *	buf
	)

Definition at line 779 of file dsl_prop.c.

void dsl_prop_set_hasrecvd

(

objset_t *

os

)

Call after successfully receiving properties to ensure that only the first receive on or after SPA_VERSION_RECVD_PROPS blows away local properties.

Definition at line 1083 of file dsl_prop.c.

static void dsl_prop_set_hasrecvd_impl	(	objset_t *	os,
		zprop_source_t	source
	)		[static]

Definition at line 1063 of file dsl_prop.c.

void dsl_prop_set_sync	(	void *	arg1,
		void *	arg2,
		dmu_tx_t *	tx
	)

Definition at line 551 of file dsl_prop.c.

void dsl_prop_setarg_init_uint64	(	dsl_prop_setarg_t *	psa,
		const char *	propname,
		zprop_source_t	source,
		uint64_t *	value
	)

Definition at line 302 of file dsl_prop.c.

int dsl_prop_unregister	(	dsl_dataset_t *	ds,
		const char *	propname,
		dsl_prop_changed_cb_t *	callback,
		void *	cbarg
	)

Unregister this callback.

Returns:

0 on success, ENOENT if ddname is invalid, or ENOMSG if no matching callback registered.

Definition at line 439 of file dsl_prop.c.

void dsl_prop_unset_hasrecvd

(

objset_t *

os

)

Definition at line 1093 of file dsl_prop.c.

int dsl_props_set	(	const char *	dsname,
		zprop_source_t	source,
		nvlist_t *	props
	)

Definition at line 825 of file dsl_prop.c.

void dsl_props_set_sync	(	void *	arg1,
		void *	arg2,
		dmu_tx_t *	tx
	)

Definition at line 718 of file dsl_prop.c.