kern_conf.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/bio.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/module.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/vnode.h>
#include <sys/queue.h>
#include <sys/poll.h>
#include <sys/sx.h>
#include <sys/ctype.h>
#include <sys/ucred.h>
#include <sys/taskqueue.h>
#include <machine/stdarg.h>
#include <fs/devfs/devfs_int.h>
#include <vm/vm.h>
#include "opt_ddb.h"

Include dependency graph for kern_conf.c:

Go to the source code of this file.

Data Structures
struct	clonedevs

Macros
#define	dead_open   (d_open_t *)enxio
#define	dead_close   (d_close_t *)enxio
#define	dead_read   (d_read_t *)enxio
#define	dead_write   (d_write_t *)enxio
#define	dead_ioctl   (d_ioctl_t *)enxio
#define	dead_poll   (d_poll_t *)enodev
#define	dead_mmap   (d_mmap_t *)enodev
#define	dead_dump   (dumper_t *)enxio
#define	dead_kqfilter   (d_kqfilter_t *)enxio
#define	dead_mmap_single   (d_mmap_single_t *)enodev
#define	null_open   (d_open_t *)nullop
#define	null_close   (d_close_t *)nullop
#define	no_read   (d_read_t *)enodev
#define	no_write   (d_write_t *)enodev
#define	no_ioctl   (d_ioctl_t *)enodev
#define	no_mmap   (d_mmap_t *)enodev
#define	no_kqfilter   (d_kqfilter_t *)enodev
#define	no_mmap_single   (d_mmap_single_t *)enodev
#define	no_dump   (dumper_t *)enodev
#define	FIXUP(member, noop, giant)

Functions
	__FBSDID ("$BSDSUniX$")
static	MALLOC_DEFINE (M_DEVT,"cdev","cdev storage")
static void	destroy_devl (struct cdev *dev)
static int	destroy_dev_sched_cbl (struct cdev *dev, void(*cb)(void *), void *arg)
static int	make_dev_credv (int flags, struct cdev **dres, struct cdevsw *devsw, int unit, struct ucred *cr, uid_t uid, gid_t gid, int mode, const char *fmt, va_list ap)
static	SLIST_HEAD (free_cdevsw, cdevsw)
static void	dev_unlock_and_free (void)
static void	dev_free_devlocked (struct cdev *cdev)
static void	cdevsw_free_devlocked (struct cdevsw *csw)
void	dev_unlock (void)
void	dev_ref (struct cdev *dev)
void	dev_refl (struct cdev *dev)
void	dev_rel (struct cdev *dev)
struct cdevsw *	dev_refthread (struct cdev *dev, int *ref)
struct cdevsw *	devvn_refthread (struct vnode *vp, struct cdev **devp, int *ref)
void	dev_relthread (struct cdev *dev, int ref)
int	nullop (void)
int	eopnotsupp (void)
static int	enxio (void)
static int	enodev (void)
static void	dead_strategy (struct bio *bp)
static void	no_strategy (struct bio *bp)
static int	no_poll (struct cdev *dev __unused, int events, struct thread *td __unused)
static int	giant_open (struct cdev *dev, int oflags, int devtype, struct thread *td)
static int	giant_fdopen (struct cdev *dev, int oflags, struct thread *td, struct file *fp)
static int	giant_close (struct cdev *dev, int fflag, int devtype, struct thread *td)
static void	giant_strategy (struct bio *bp)
static int	giant_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td)
static int	giant_read (struct cdev *dev, struct uio *uio, int ioflag)
static int	giant_write (struct cdev *dev, struct uio *uio, int ioflag)
static int	giant_poll (struct cdev *dev, int events, struct thread *td)
static int	giant_kqfilter (struct cdev *dev, struct knote *kn)
static int	giant_mmap (struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot, vm_memattr_t *memattr)
static int	giant_mmap_single (struct cdev *dev, vm_ooffset_t *offset, vm_size_t size, vm_object_t *object, int nprot)
static void	notify (struct cdev *dev, const char *ev, int flags)
static void	notify_create (struct cdev *dev, int flags)
static void	notify_destroy (struct cdev *dev)
static struct cdev *	newdev (struct cdevsw *csw, int unit, struct cdev *si)
static void	fini_cdevsw (struct cdevsw *devsw)
static int	prep_cdevsw (struct cdevsw *devsw, int flags)
static int	prep_devname (struct cdev *dev, const char *fmt, va_list ap)
struct cdev *	make_dev (struct cdevsw *devsw, int unit, uid_t uid, gid_t gid, int mode, const char *fmt,...)
struct cdev *	make_dev_cred (struct cdevsw *devsw, int unit, struct ucred *cr, uid_t uid, gid_t gid, int mode, const char *fmt,...)
struct cdev *	make_dev_credf (int flags, struct cdevsw *devsw, int unit, struct ucred *cr, uid_t uid, gid_t gid, int mode, const char *fmt,...)
int	make_dev_p (int flags, struct cdev **cdev, struct cdevsw *devsw, struct ucred *cr, uid_t uid, gid_t gid, int mode, const char *fmt,...)
static void	dev_dependsl (struct cdev *pdev, struct cdev *cdev)
void	dev_depends (struct cdev *pdev, struct cdev *cdev)
static int	make_dev_alias_v (int flags, struct cdev **cdev, struct cdev *pdev, const char *fmt, va_list ap)
struct cdev *	make_dev_alias (struct cdev *pdev, const char *fmt,...)
int	make_dev_alias_p (int flags, struct cdev **cdev, struct cdev *pdev, const char *fmt,...)
int	make_dev_physpath_alias (int flags, struct cdev **cdev, struct cdev *pdev, struct cdev *old_alias, const char *physpath)
static void	delist_dev_locked (struct cdev *dev)
void	delist_dev (struct cdev *dev)
void	destroy_dev (struct cdev *dev)
const char *	devtoname (struct cdev *dev)
int	dev_stdclone (char *name, char **namep, const char *stem, int *unit)
void	clone_setup (struct clonedevs **cdp)
int	clone_create (struct clonedevs **cdp, struct cdevsw *csw, int *up, struct cdev **dp, int extra)
void	clone_cleanup (struct clonedevs **cdp)
static	TAILQ_HEAD (cdev_priv)
int	destroy_dev_sched_cb (struct cdev *dev, void(*cb)(void *), void *arg)
int	destroy_dev_sched (struct cdev *dev)
void	destroy_dev_drain (struct cdevsw *csw)
void	drain_dev_clone_events (void)
static void	devdtr_init (void *dummy __unused)
	SYSINIT (devdtr, SI_SUB_DEVFS, SI_ORDER_SECOND, devdtr_init, NULL)

Variables
struct mtx	devmtx
static struct cdev_priv_list	cdevp_free_list
static struct cdevsw	dead_cdevsw

Macro Definition Documentation

#define dead_close   (d_close_t *)enxio

Definition at line 291 of file kern_conf.c.

Referenced by prep_cdevsw().

#define dead_dump   (dumper_t *)enxio

Definition at line 305 of file kern_conf.c.

Referenced by prep_cdevsw().

#define dead_ioctl   (d_ioctl_t *)enxio

Definition at line 294 of file kern_conf.c.

Referenced by prep_cdevsw().

#define dead_kqfilter   (d_kqfilter_t *)enxio

Definition at line 306 of file kern_conf.c.

Referenced by prep_cdevsw().

#define dead_mmap   (d_mmap_t *)enodev

Definition at line 296 of file kern_conf.c.

Referenced by prep_cdevsw().

#define dead_mmap_single   (d_mmap_single_t *)enodev

Definition at line 307 of file kern_conf.c.

Referenced by prep_cdevsw().

#define dead_open   (d_open_t *)enxio

Definition at line 290 of file kern_conf.c.

Referenced by prep_cdevsw().

#define dead_poll   (d_poll_t *)enodev

Definition at line 295 of file kern_conf.c.

Referenced by prep_cdevsw().

#define dead_read   (d_read_t *)enxio

Definition at line 292 of file kern_conf.c.

Referenced by prep_cdevsw().

#define dead_write   (d_write_t *)enxio

Definition at line 293 of file kern_conf.c.

Referenced by prep_cdevsw().

#define FIXUP	(		member,
			noop,
			giant
	)

Value:

do {                                                    \
                if (devsw->member == NULL) {                    \
                        devsw->member = noop;                   \
                } else if (devsw->d_flags & D_NEEDGIANT)        \
                        devsw->member = giant;                  \
                }                                               \
        while (0)

Referenced by prep_cdevsw().

#define no_dump   (dumper_t *)enodev

Definition at line 350 of file kern_conf.c.

Referenced by prep_cdevsw().

#define no_ioctl   (d_ioctl_t *)enodev

Definition at line 331 of file kern_conf.c.

Referenced by prep_cdevsw().

#define no_kqfilter   (d_kqfilter_t *)enodev

Definition at line 333 of file kern_conf.c.

Referenced by prep_cdevsw().

#define no_mmap   (d_mmap_t *)enodev

Definition at line 332 of file kern_conf.c.

Referenced by prep_cdevsw().

#define no_mmap_single   (d_mmap_single_t *)enodev

Definition at line 334 of file kern_conf.c.

Referenced by prep_cdevsw().

#define no_read   (d_read_t *)enodev

Definition at line 329 of file kern_conf.c.

Referenced by prep_cdevsw().

#define no_write   (d_write_t *)enodev

Definition at line 330 of file kern_conf.c.

Referenced by prep_cdevsw().

#define null_close   (d_close_t *)nullop

Definition at line 328 of file kern_conf.c.

Referenced by prep_cdevsw().

#define null_open   (d_open_t *)nullop

Definition at line 327 of file kern_conf.c.

Referenced by prep_cdevsw().

Function Documentation

__FBSDID

(

"$BSDSUniX$"

)

static void cdevsw_free_devlocked ( struct cdevsw *  csw )

static

Definition at line 124 of file kern_conf.c.

References devmtx.

Referenced by fini_cdevsw(), and prep_cdevsw().

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void clone_cleanup

(

struct clonedevs **

cdp

)

Definition at line 1324 of file kern_conf.c.

References destroy_devl(), dev_unlock_and_free(), and free().

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int clone_create	(	struct clonedevs **	cdp,
		struct cdevsw *	csw,
		int *	up,
		struct cdev **	dp,
		int	extra
	)

Definition at line 1240 of file kern_conf.c.

References dev_unlock(), dev_unlock_and_free(), newdev(), panic(), prep_cdevsw(), and printf().

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void clone_setup

(

struct clonedevs **

cdp

)

Definition at line 1232 of file kern_conf.c.

References malloc().

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static void dead_strategy ( struct bio *  bp )

static

Definition at line 299 of file kern_conf.c.

References biofinish().

Referenced by prep_cdevsw().

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void delist_dev

(

struct cdev *

dev

)

Definition at line 1157 of file kern_conf.c.

References delist_dev_locked(), and dev_unlock().

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static void delist_dev_locked ( struct cdev *  dev )

static

Definition at line 1128 of file kern_conf.c.

References dev_refl(), dev_unlock(), devmtx, and notify_destroy().

Referenced by delist_dev().

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void destroy_dev

(

struct cdev *

dev

)

Definition at line 1167 of file kern_conf.c.

References destroy_devl(), and dev_unlock_and_free().

Referenced by make_dev_physpath_alias().

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void destroy_dev_drain

(

struct cdevsw *

csw

)

Definition at line 1425 of file kern_conf.c.

References dev_unlock(), devmtx, and hz.

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int destroy_dev_sched

(

struct cdev *

dev

)

Definition at line 1418 of file kern_conf.c.

References destroy_dev_sched_cb().

Referenced by ptsdrv_free().

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int destroy_dev_sched_cb	(	struct cdev *	dev,
		void(*)(void *)	cb,
		void *	arg
	)

Definition at line 1410 of file kern_conf.c.

References destroy_dev_sched_cbl().

Referenced by destroy_dev_sched(), and tty_rel_free().

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static int destroy_dev_sched_cbl ( struct cdev *  dev, void(*)(void *)  cb, void *  arg  )

static

Definition at line 1389 of file kern_conf.c.

References dev_refl(), dev_unlock(), devmtx, and taskqueue_enqueue().

Referenced by destroy_dev_sched_cb().

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static void destroy_devl ( struct cdev *  dev )

static

Definition at line 1031 of file kern_conf.c.

References dev_free_devlocked(), dev_refl(), dev_unlock(), devmtx, devtoname(), fini_cdevsw(), hz, notify_destroy(), printf(), and wakeup().

Referenced by clone_cleanup(), destroy_dev(), and TAILQ_HEAD().

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void dev_depends	(	struct cdev *	pdev,
		struct cdev *	cdev
	)

Definition at line 890 of file kern_conf.c.

References dev_dependsl(), and dev_unlock().

Referenced by tty_makedev().

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static void dev_dependsl ( struct cdev *  pdev, struct cdev *  cdev  )

static

Definition at line 880 of file kern_conf.c.

Referenced by dev_depends(), and make_dev_alias_v().

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static void dev_free_devlocked ( struct cdev *  cdev )

static

Definition at line 112 of file kern_conf.c.

References devmtx.

Referenced by destroy_devl(), and newdev().

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void dev_ref

(

struct cdev *

dev

)

Definition at line 139 of file kern_conf.c.

References devmtx.

void dev_refl

(

struct cdev *

dev

)

Definition at line 149 of file kern_conf.c.

References devmtx.

Referenced by ctty_clone(), delist_dev_locked(), destroy_dev_sched_cbl(), destroy_devl(), and make_dev_credv().

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struct cdevsw* dev_refthread	(	struct cdev *	dev,
		int *	ref
	)

Definition at line 182 of file kern_conf.c.

References dev_unlock(), and devmtx.

Referenced by dev_strategy(), giant_close(), giant_fdopen(), giant_ioctl(), giant_kqfilter(), giant_mmap(), giant_mmap_single(), giant_open(), giant_poll(), giant_read(), giant_strategy(), and giant_write().

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void dev_rel

(

struct cdev *

dev

)

Definition at line 157 of file kern_conf.c.

References dev_unlock(), devmtx, devtoname(), and flag.

Referenced by TAILQ_HEAD().

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void dev_relthread	(	struct cdev *	dev,
		int	ref
	)

Definition at line 249 of file kern_conf.c.

References dev_unlock(), and devmtx.

Referenced by aio_qphysio(), dev_strategy(), giant_close(), giant_fdopen(), giant_ioctl(), giant_kqfilter(), giant_mmap(), giant_mmap_single(), giant_open(), giant_poll(), giant_read(), giant_strategy(), giant_write(), and ttyhook_register().

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int dev_stdclone	(	char *	name,
		char **	namep,
		const char *	stem,
		int *	unit
	)

Definition at line 1184 of file kern_conf.c.

void dev_unlock

(

void

)

Definition at line 132 of file kern_conf.c.

References devmtx.

Referenced by clone_create(), count_dev(), ctty_clone(), delist_dev(), delist_dev_locked(), destroy_dev_drain(), destroy_dev_sched_cbl(), destroy_devl(), dev_depends(), dev_refthread(), dev_rel(), dev_relthread(), devvn_refthread(), make_dev_alias_v(), make_dev_credv(), prep_cdevsw(), TAILQ_HEAD(), v_decr_usecount(), v_decr_useonly(), v_incr_usecount(), v_upgrade_usecount(), vcount(), and vn_isdisk().

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static void dev_unlock_and_free ( void  )

static

Definition at line 81 of file kern_conf.c.

References devmtx, and free().

Referenced by clone_cleanup(), clone_create(), destroy_dev(), make_dev_credv(), and TAILQ_HEAD().

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static void devdtr_init ( void *dummy  __unused )

static

Definition at line 1444 of file kern_conf.c.

const char* devtoname

(

struct cdev *

dev

)

Definition at line 1177 of file kern_conf.c.

Referenced by destroy_devl(), dev_rel(), dev_strategy(), dev_strategy_csw(), disk_err(), make_dev_credv(), and physio().

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struct cdevsw* devvn_refthread	(	struct vnode *	vp,
		struct cdev **	devp,
		int *	ref
	)

Definition at line 207 of file kern_conf.c.

References dev_unlock(), and devmtx.

Referenced by aio_qphysio(), and ttyhook_register().

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void drain_dev_clone_events

(

void

)

Definition at line 1436 of file kern_conf.c.

static int enodev ( void  )

static

Definition at line 283 of file kern_conf.c.

static int enxio ( void  )

static

Definition at line 277 of file kern_conf.c.

int eopnotsupp

(

void

)

Definition at line 270 of file kern_conf.c.

static void fini_cdevsw ( struct cdevsw *  devsw )

static

Definition at line 591 of file kern_conf.c.

References cdevsw_free_devlocked().

Referenced by destroy_devl().

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static int giant_close ( struct cdev *  dev, int  fflag, int  devtype, struct thread *  td  )

static

Definition at line 385 of file kern_conf.c.

References dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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static int giant_fdopen ( struct cdev *  dev, int  oflags, struct thread *  td, struct file *  fp  )

static

Definition at line 369 of file kern_conf.c.

References dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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static int giant_ioctl ( struct cdev *  dev, u_long  cmd, caddr_t  data, int  fflag, struct thread *  td  )

static

Definition at line 420 of file kern_conf.c.

References dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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static int giant_kqfilter ( struct cdev *  dev, struct knote *  kn  )

static

Definition at line 484 of file kern_conf.c.

References dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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static int giant_mmap ( struct cdev *  dev, vm_ooffset_t  offset, vm_paddr_t *  paddr, int  nprot, vm_memattr_t *  memattr  )

static

Definition at line 500 of file kern_conf.c.

References dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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static int giant_mmap_single ( struct cdev *  dev, vm_ooffset_t *  offset, vm_size_t  size, vm_object_t *  object, int  nprot  )

static

Definition at line 518 of file kern_conf.c.

References dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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static int giant_open ( struct cdev *  dev, int  oflags, int  devtype, struct thread *  td  )

static

Definition at line 353 of file kern_conf.c.

References dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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static int giant_poll ( struct cdev *  dev, int  events, struct thread *  td  )

static

Definition at line 468 of file kern_conf.c.

References dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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static int giant_read ( struct cdev *  dev, struct uio *  uio, int  ioflag  )

static

Definition at line 436 of file kern_conf.c.

References dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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static void giant_strategy ( struct bio *  bp )

static

Definition at line 401 of file kern_conf.c.

References biofinish(), dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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static int giant_write ( struct cdev *  dev, struct uio *  uio, int  ioflag  )

static

Definition at line 452 of file kern_conf.c.

References dev_refthread(), dev_relthread(), and Giant.

Referenced by prep_cdevsw().

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struct cdev* make_dev	(	struct cdevsw *	devsw,
		int	unit,
		uid_t	uid,
		gid_t	gid,
		int	mode,
		const char *	fmt,
			...
	)

Definition at line 809 of file kern_conf.c.

References make_dev_credv().

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struct cdev* make_dev_alias	(	struct cdev *	pdev,
		const char *	fmt,
			...
	)

Definition at line 940 of file kern_conf.c.

References make_dev_alias_v().

Referenced by fildesc_drvinit().

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int make_dev_alias_p	(	int	flags,
		struct cdev **	cdev,
		struct cdev *	pdev,
		const char *	fmt,
			...
	)

Definition at line 956 of file kern_conf.c.

References make_dev_alias_v().

Referenced by make_dev_physpath_alias().

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static int make_dev_alias_v ( int  flags, struct cdev **  cdev, struct cdev *  pdev, const char *  fmt, va_list  ap  )

static

Definition at line 899 of file kern_conf.c.

References clean_unrhdrl(), dev_dependsl(), dev_unlock(), notify_create(), panic(), and prep_devname().

Referenced by make_dev_alias(), and make_dev_alias_p().

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struct cdev* make_dev_cred	(	struct cdevsw *	devsw,
		int	unit,
		struct ucred *	cr,
		uid_t	uid,
		gid_t	gid,
		int	mode,
		const char *	fmt,
			...
	)

Definition at line 826 of file kern_conf.c.

References make_dev_credv().

Referenced by tty_makedev().

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struct cdev* make_dev_credf	(	int	flags,
		struct cdevsw *	devsw,
		int	unit,
		struct ucred *	cr,
		uid_t	uid,
		gid_t	gid,
		int	mode,
		const char *	fmt,
			...
	)

Definition at line 843 of file kern_conf.c.

References make_dev_credv().

Referenced by ctty_drvinit(), devinit(), devstat_alloc(), fildesc_drvinit(), log_drvinit(), and ttyconsdev_init().

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static int make_dev_credv ( int  flags, struct cdev **  dres, struct cdevsw *  devsw, int  unit, struct ucred *  cr, uid_t  uid, gid_t  gid, int  mode, const char *  fmt, va_list  ap  )

static

Definition at line 736 of file kern_conf.c.

References clean_unrhdrl(), crhold(), dev_refl(), dev_unlock(), dev_unlock_and_free(), devtoname(), mode, newdev(), notify_create(), panic(), prep_cdevsw(), and prep_devname().

Referenced by make_dev(), make_dev_cred(), make_dev_credf(), and make_dev_p().

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int make_dev_p	(	int	flags,
		struct cdev **	cdev,
		struct cdevsw *	devsw,
		struct ucred *	cr,
		uid_t	uid,
		gid_t	gid,
		int	mode,
		const char *	fmt,
			...
	)

Definition at line 862 of file kern_conf.c.

References make_dev_credv().

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int make_dev_physpath_alias	(	int	flags,
		struct cdev **	cdev,
		struct cdev *	pdev,
		struct cdev *	old_alias,
		const char *	physpath
	)

Definition at line 969 of file kern_conf.c.

References destroy_dev(), free(), make_dev_alias_p(), malloc(), and sprintf().

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static MALLOC_DEFINE ( M_DEVT  , "cdev"  , "cdev storage"    )

static

static struct cdev* newdev ( struct cdevsw *  csw, int  unit, struct cdev *  si  )

static

Definition at line 570 of file kern_conf.c.

References dev_free_devlocked(), and devmtx.

Referenced by clone_create(), and make_dev_credv().

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static int no_poll ( struct cdev *dev  __unused, int  events, struct thread *td  __unused  )

static

Definition at line 344 of file kern_conf.c.

References poll_no_poll().

Referenced by prep_cdevsw().

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static void no_strategy ( struct bio *  bp )

static

Definition at line 337 of file kern_conf.c.

References biofinish().

Referenced by prep_cdevsw().

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static void notify ( struct cdev *  dev, const char *  ev, int  flags  )

static

Definition at line 536 of file kern_conf.c.

References devctl_notify_f(), free(), and malloc().

Referenced by notify_create(), and notify_destroy().

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static void notify_create ( struct cdev *  dev, int  flags  )

static

Definition at line 556 of file kern_conf.c.

References notify().

Referenced by make_dev_alias_v(), and make_dev_credv().

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static void notify_destroy ( struct cdev *  dev )

static

Definition at line 563 of file kern_conf.c.

References notify().

Referenced by delist_dev_locked(), and destroy_devl().

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int nullop

(

void

)

Definition at line 263 of file kern_conf.c.

static int prep_cdevsw ( struct cdevsw *  devsw, int  flags  )

static

Definition at line 605 of file kern_conf.c.

References cdevsw_free_devlocked(), dead_close, dead_dump, dead_ioctl, dead_kqfilter, dead_mmap, dead_mmap_single, dead_open, dead_poll, dead_read, dead_strategy(), dead_write, dev_unlock(), devmtx, FIXUP, giant_close(), giant_fdopen(), giant_ioctl(), giant_kqfilter(), giant_mmap(), giant_mmap_single(), giant_open(), giant_poll(), giant_read(), giant_strategy(), giant_write(), malloc(), no_dump, no_ioctl, no_kqfilter, no_mmap, no_mmap_single, no_poll(), no_read, no_strategy(), no_write, null_close, null_open, and printf().

Referenced by clone_create(), and make_dev_credv().

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static int prep_devname ( struct cdev *  dev, const char *  fmt, va_list  ap  )

static

Definition at line 686 of file kern_conf.c.

References devmtx, and vsnrprintf().

Referenced by make_dev_alias_v(), and make_dev_credv().

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static SLIST_HEAD ( free_cdevsw  , cdevsw    )

static

Definition at line 64 of file kern_conf.c.

References devmtx.

SYSINIT	(	devdtr	,
		SI_SUB_DEVFS	,
		SI_ORDER_SECOND	,
		devdtr_init	,
		NULL
	)

static TAILQ_HEAD ( cdev_priv  )

static

Definition at line 1353 of file kern_conf.c.

References destroy_devl(), dev_rel(), dev_unlock(), and dev_unlock_and_free().

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Variable Documentation

struct cdev_priv_list cdevp_free_list

static

Initial value:

=
    TAILQ_HEAD_INITIALIZER(cdevp_free_list)

Definition at line 62 of file kern_conf.c.

struct cdevsw dead_cdevsw

static

Initial value:

= {
        .d_version =    D_VERSION,
        .d_open =       dead_open,
        .d_close =      dead_close,
        .d_read =       dead_read,
        .d_write =      dead_write,
        .d_ioctl =      dead_ioctl,
        .d_poll =       dead_poll,
        .d_mmap =       dead_mmap,
        .d_strategy =   dead_strategy,
        .d_name =       "dead",
        .d_dump =       dead_dump,
        .d_kqfilter =   dead_kqfilter,
        .d_mmap_single = dead_mmap_single
}

Definition at line 309 of file kern_conf.c.

struct mtx devmtx

Definition at line 54 of file kern_conf.c.

Referenced by cdevsw_free_devlocked(), delist_dev_locked(), destroy_dev_drain(), destroy_dev_sched_cbl(), destroy_devl(), dev_free_devlocked(), dev_ref(), dev_refl(), dev_refthread(), dev_rel(), dev_relthread(), dev_unlock(), dev_unlock_and_free(), devvn_refthread(), mutex_init(), newdev(), prep_cdevsw(), prep_devname(), and SLIST_HEAD().