#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/bio.h>
#include <sys/devctl.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:

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 ("$FreeBSD$")

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 void	destroy_dev_tq (void *ctx, int pending)

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 make_dev_args args, 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)

void	make_dev_args_init_impl (struct make_dev_args *args, size_t sz)

static int	make_dev_sv (struct make_dev_args args1, struct cdev dres, const char fmt, va_list ap)

int	make_dev_s (struct make_dev_args args, struct cdev dres, const char fmt,...)

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)

Variables
struct mtx	devmtx

static struct cdev_priv_list	cdevp_free_list

static struct cdevsw	dead_cdevsw

Macro Definition Documentation

◆ dead_close

#define dead_close (d_close_t *)enxio

Definition at line 289 of file kern_conf.c.

◆ dead_dump

#define dead_dump (dumper_t *)enxio

Definition at line 303 of file kern_conf.c.

◆ dead_ioctl

#define dead_ioctl (d_ioctl_t *)enxio

Definition at line 292 of file kern_conf.c.

◆ dead_kqfilter

#define dead_kqfilter (d_kqfilter_t *)enxio

Definition at line 304 of file kern_conf.c.

◆ dead_mmap

#define dead_mmap (d_mmap_t *)enodev

Definition at line 294 of file kern_conf.c.

◆ dead_mmap_single

#define dead_mmap_single (d_mmap_single_t *)enodev

Definition at line 305 of file kern_conf.c.

◆ dead_open

#define dead_open (d_open_t *)enxio

Definition at line 288 of file kern_conf.c.

◆ dead_poll

#define dead_poll (d_poll_t *)enodev

Definition at line 293 of file kern_conf.c.

◆ dead_read

#define dead_read (d_read_t *)enxio

Definition at line 290 of file kern_conf.c.

◆ dead_write

#define dead_write (d_write_t *)enxio

Definition at line 291 of file kern_conf.c.

◆ FIXUP

#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)

◆ no_dump

#define no_dump (dumper_t *)enodev

Definition at line 348 of file kern_conf.c.

◆ no_ioctl

#define no_ioctl (d_ioctl_t *)enodev

Definition at line 329 of file kern_conf.c.

◆ no_kqfilter

#define no_kqfilter (d_kqfilter_t *)enodev

Definition at line 331 of file kern_conf.c.

◆ no_mmap

#define no_mmap (d_mmap_t *)enodev

Definition at line 330 of file kern_conf.c.

◆ no_mmap_single

#define no_mmap_single (d_mmap_single_t *)enodev

Definition at line 332 of file kern_conf.c.

◆ no_read

#define no_read (d_read_t *)enodev

Definition at line 327 of file kern_conf.c.

◆ no_write

#define no_write (d_write_t *)enodev

Definition at line 328 of file kern_conf.c.

◆ null_close

#define null_close (d_close_t *)nullop

Definition at line 326 of file kern_conf.c.

◆ null_open

#define null_open (d_open_t *)nullop

Definition at line 325 of file kern_conf.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ cdevsw_free_devlocked()

static void cdevsw_free_devlocked ( struct cdevsw * csw )

static

Definition at line 127 of file kern_conf.c.

Referenced by fini_cdevsw(), and prep_cdevsw().

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◆ clone_cleanup()

void clone_cleanup ( struct clonedevs ** cdp )

Definition at line 1399 of file kern_conf.c.

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

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◆ clone_create()

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

Definition at line 1312 of file kern_conf.c.

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

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◆ clone_setup()

void clone_setup ( struct clonedevs ** cdp )

Definition at line 1304 of file kern_conf.c.

References malloc().

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◆ dead_strategy()

static void dead_strategy ( struct bio * bp )

static

Definition at line 297 of file kern_conf.c.

References biofinish().

Referenced by prep_cdevsw().

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◆ delist_dev()

void delist_dev ( struct cdev * dev )

Definition at line 1229 of file kern_conf.c.

References delist_dev_locked(), and dev_unlock().

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◆ delist_dev_locked()

static void delist_dev_locked ( struct cdev * dev )

static

Definition at line 1200 of file kern_conf.c.

References child, delist_dev_locked(), dev_refl(), dev_unlock(), and notify_destroy().

Referenced by delist_dev(), and delist_dev_locked().

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◆ destroy_dev()

void destroy_dev ( struct cdev * dev )

Definition at line 1239 of file kern_conf.c.

References destroy_devl(), and dev_unlock_and_free().

Referenced by make_dev_physpath_alias(), and tty_makedevf().

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◆ destroy_dev_drain()

void destroy_dev_drain ( struct cdevsw * csw )

Definition at line 1501 of file kern_conf.c.

References dev_unlock(), devmtx, and hz.

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◆ destroy_dev_sched()

int destroy_dev_sched ( struct cdev * dev )

Definition at line 1494 of file kern_conf.c.

References destroy_dev_sched_cb().

Referenced by ptsdrv_free().

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◆ destroy_dev_sched_cb()

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

Definition at line 1486 of file kern_conf.c.

References destroy_dev_sched_cbl().

Referenced by destroy_dev_sched(), and tty_rel_free().

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◆ destroy_dev_sched_cbl()

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

static

Definition at line 1465 of file kern_conf.c.

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

Referenced by destroy_dev_sched_cb().

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◆ destroy_dev_tq()

static void destroy_dev_tq	(	void *	ctx,
		int	pending
	)

static

◆ destroy_devl()

static void destroy_devl ( struct cdev * dev )

static

Definition at line 1098 of file kern_conf.c.

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

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

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◆ dev_depends()

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

Definition at line 957 of file kern_conf.c.

References dev_dependsl(), and dev_unlock().

Referenced by tty_makedevf().

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◆ dev_dependsl()

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

static

Definition at line 948 of file kern_conf.c.

Referenced by dev_depends(), and make_dev_alias_v().

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◆ dev_free_devlocked()

static void dev_free_devlocked ( struct cdev * cdev )

static

Definition at line 115 of file kern_conf.c.

References cdevp_free_list.

Referenced by destroy_devl(), and newdev().

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◆ dev_ref()

void dev_ref ( struct cdev * dev )

Definition at line 142 of file kern_conf.c.

References devmtx.

◆ dev_refl()

void dev_refl ( struct cdev * dev )

Definition at line 152 of file kern_conf.c.

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

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◆ dev_refthread()

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

Definition at line 179 of file kern_conf.c.

Referenced by 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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◆ dev_rel()

void dev_rel ( struct cdev * dev )

Definition at line 160 of file kern_conf.c.

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

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◆ dev_relthread()

void dev_relthread	(	struct cdev *	dev,
		int	ref
	)

Definition at line 249 of file kern_conf.c.

Referenced by aio_qbio(), 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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◆ dev_stdclone()

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

Definition at line 1256 of file kern_conf.c.

References name.

◆ dev_unlock()

void dev_unlock ( void )

Definition at line 135 of file kern_conf.c.

References devmtx.

Referenced by clone_create(), ctty_clone(), delist_dev(), delist_dev_locked(), destroy_dev_drain(), destroy_dev_sched_cbl(), destroy_devl(), dev_depends(), dev_rel(), make_dev_alias_v(), make_dev_sv(), prep_cdevsw(), and vn_isdisk_error().

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◆ dev_unlock_and_free()

static void dev_unlock_and_free ( void )

static

Definition at line 84 of file kern_conf.c.

References cdevp_free_list, devmtx, and free().

Referenced by clone_cleanup(), clone_create(), destroy_dev(), and make_dev_sv().

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◆ devtoname()

const char * devtoname ( struct cdev * dev )

Definition at line 1249 of file kern_conf.c.

Referenced by destroy_devl(), dev_rel(), disk_err(), make_dev_sv(), newdev(), and physio().

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◆ devvn_refthread()

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

Definition at line 205 of file kern_conf.c.

Referenced by aio_qbio(), and ttyhook_register().

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◆ drain_dev_clone_events()

void drain_dev_clone_events ( void )

Definition at line 1512 of file kern_conf.c.

◆ enodev()

static int enodev ( void )

static

Definition at line 281 of file kern_conf.c.

◆ enxio()

static int enxio ( void )

static

Definition at line 275 of file kern_conf.c.

◆ eopnotsupp()

int eopnotsupp ( void )

Definition at line 268 of file kern_conf.c.

◆ fini_cdevsw()

static void fini_cdevsw ( struct cdevsw * devsw )

static

Definition at line 614 of file kern_conf.c.

References cdevsw_free_devlocked().

Referenced by destroy_devl().

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◆ giant_close()

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

static

Definition at line 383 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ giant_fdopen()

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

static

Definition at line 367 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ giant_ioctl()

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

static

Definition at line 418 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ giant_kqfilter()

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

static

Definition at line 482 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ giant_mmap()

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 498 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ giant_mmap_single()

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 516 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ giant_open()

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

static

Definition at line 351 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ giant_poll()

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

static

Definition at line 466 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ giant_read()

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

static

Definition at line 434 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ giant_strategy()

static void giant_strategy ( struct bio * bp )

static

Definition at line 399 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ giant_write()

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

static

Definition at line 450 of file kern_conf.c.

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

Referenced by prep_cdevsw().

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◆ make_dev()

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

Definition at line 877 of file kern_conf.c.

References make_dev_credv(), mode, and res.

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◆ make_dev_alias()

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

Definition at line 1007 of file kern_conf.c.

References make_dev_alias_v(), and res.

Referenced by fildesc_drvinit().

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◆ make_dev_alias_p()

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

Definition at line 1023 of file kern_conf.c.

References flags, make_dev_alias_v(), and res.

Referenced by make_dev_physpath_alias().

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◆ make_dev_alias_v()

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

static

Definition at line 966 of file kern_conf.c.

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

Referenced by make_dev_alias(), and make_dev_alias_p().

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◆ make_dev_args_init_impl()

void make_dev_args_init_impl	(	struct make_dev_args *	args,
		size_t	sz
	)

Definition at line 771 of file kern_conf.c.

◆ make_dev_cred()

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 894 of file kern_conf.c.

References make_dev_credv(), mode, and res.

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◆ make_dev_credf()

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 911 of file kern_conf.c.

References flags, make_dev_credv(), mode, and res.

Referenced by ctty_drvinit(), devctl2_init(), devinit(), devstat_alloc(), fildesc_drvinit(), log_drvinit(), and ttyconsdev_init().

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◆ make_dev_credv()

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 859 of file kern_conf.c.

References flags, make_dev_sv(), and mode.

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

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◆ make_dev_p()

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 930 of file kern_conf.c.

References flags, make_dev_credv(), mode, and res.

Referenced by reroot_conf().

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◆ make_dev_physpath_alias()

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

Definition at line 1036 of file kern_conf.c.

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

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◆ make_dev_s()

int make_dev_s	(	struct make_dev_args *	args,
		struct cdev **	dres,
		const char *	fmt,
			...
	)

Definition at line 846 of file kern_conf.c.

References make_dev_sv(), and res.

Referenced by kcov_init(), and tty_makedevf().

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◆ make_dev_sv()

static int make_dev_sv	(	struct make_dev_args *	args1,
		struct cdev **	dres,
		const char *	fmt,
		va_list	ap
	)

static

Definition at line 779 of file kern_conf.c.

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

Referenced by make_dev_credv(), and make_dev_s().

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◆ MALLOC_DEFINE()

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

static

◆ newdev()

static struct cdev * newdev	(	struct make_dev_args *	args,
		struct cdev *	si
	)

static

Definition at line 568 of file kern_conf.c.

References dev_free_devlocked(), and devtoname().

Referenced by clone_create(), and make_dev_sv().

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◆ no_poll()

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

static

Definition at line 342 of file kern_conf.c.

References poll_no_poll().

Referenced by prep_cdevsw().

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◆ no_strategy()

static void no_strategy ( struct bio * bp )

static

Definition at line 335 of file kern_conf.c.

References biofinish().

Referenced by prep_cdevsw().

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◆ notify()

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

static

Definition at line 534 of file kern_conf.c.

References data, devctl_notify(), ev, flags, free(), and malloc().

Referenced by notify_create(), and notify_destroy().

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◆ notify_create()

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

static

Definition at line 554 of file kern_conf.c.

References flags, and notify().

Referenced by make_dev_alias_v(), and make_dev_sv().

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◆ notify_destroy()

static void notify_destroy ( struct cdev * dev )

static

Definition at line 561 of file kern_conf.c.

References notify().

Referenced by delist_dev_locked(), and destroy_devl().

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◆ nullop()

int nullop ( void )

Definition at line 261 of file kern_conf.c.

◆ prep_cdevsw()

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

static

Definition at line 628 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(), FIXUP, flags, 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_sv().

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◆ prep_devname()

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

static

Definition at line 715 of file kern_conf.c.

References vsnrprintf().

Referenced by make_dev_alias_v(), and make_dev_sv().

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◆ SLIST_HEAD()

static SLIST_HEAD	(	free_cdevsw	,
		cdevsw
	)

static

Definition at line 67 of file kern_conf.c.

◆ TAILQ_HEAD()

static TAILQ_HEAD ( cdev_priv )

static

Definition at line 1429 of file kern_conf.c.

Variable Documentation

◆ cdevp_free_list

struct cdev_priv_list cdevp_free_list

static

Initial value:

=

TAILQ_HEAD_INITIALIZER(cdevp_free_list)

cdevp_free_list

static struct cdev_priv_list cdevp_free_list

Definition: kern_conf.c:65

Definition at line 65 of file kern_conf.c.

Referenced by dev_free_devlocked(), and dev_unlock_and_free().

◆ dead_cdevsw

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 307 of file kern_conf.c.

Referenced by destroy_devl().

◆ devmtx

struct mtx devmtx

Definition at line 56 of file kern_conf.c.

Referenced by destroy_dev_drain(), destroy_devl(), dev_ref(), dev_unlock(), dev_unlock_and_free(), and mutex_init().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ dead_close

◆ dead_dump

◆ dead_ioctl

◆ dead_kqfilter

◆ dead_mmap

◆ dead_mmap_single

◆ dead_open

◆ dead_poll

◆ dead_read

◆ dead_write

◆ FIXUP

◆ no_dump

◆ no_ioctl

◆ no_kqfilter

◆ no_mmap

◆ no_mmap_single

◆ no_read

◆ no_write

◆ null_close

◆ null_open

Function Documentation

◆ __FBSDID()

◆ cdevsw_free_devlocked()

◆ clone_cleanup()

◆ clone_create()

◆ clone_setup()

◆ dead_strategy()

◆ delist_dev()

◆ delist_dev_locked()

◆ destroy_dev()

◆ destroy_dev_drain()

◆ destroy_dev_sched()

◆ destroy_dev_sched_cb()

◆ destroy_dev_sched_cbl()

◆ destroy_dev_tq()

◆ destroy_devl()

◆ dev_depends()

◆ dev_dependsl()

◆ dev_free_devlocked()

◆ dev_ref()

◆ dev_refl()

◆ dev_refthread()

◆ dev_rel()

◆ dev_relthread()

◆ dev_stdclone()

◆ dev_unlock()

◆ dev_unlock_and_free()

◆ devtoname()

◆ devvn_refthread()

◆ drain_dev_clone_events()

◆ enodev()

◆ enxio()

◆ eopnotsupp()

◆ fini_cdevsw()

◆ giant_close()

◆ giant_fdopen()

◆ giant_ioctl()

◆ giant_kqfilter()

◆ giant_mmap()

◆ giant_mmap_single()

◆ giant_open()

◆ giant_poll()

◆ giant_read()

◆ giant_strategy()

◆ giant_write()

◆ make_dev()

◆ make_dev_alias()

◆ make_dev_alias_p()

◆ make_dev_alias_v()

◆ make_dev_args_init_impl()

◆ make_dev_cred()

◆ make_dev_credf()

◆ make_dev_credv()

◆ make_dev_p()

◆ make_dev_physpath_alias()