vfs_init.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/fnv_hash.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/linker.h>
#include <sys/mount.h>
#include <sys/proc.h>
#include <sys/sx.h>
#include <sys/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/vnode.h>
#include <sys/malloc.h>

Include dependency graph for vfs_init.c:

Go to the source code of this file.

Functions
	__FBSDID ("$FreeBSD$")
static int	vfs_register (struct vfsconf *)
static int	vfs_unregister (struct vfsconf *)
	MALLOC_DEFINE (M_VNODE, "vnodes", "Dynamically allocated vnodes")
	SX_SYSINIT (vfsconf, &vfsconf_sx, "vfsconf")
	SYSCTL_INT (_vfs, OID_AUTO, typenumhash, CTLFLAG_RDTUN, &vfs_typenumhash, 0, "Set vfc_typenum using a hash calculation on vfc_name, so that it does not" "change when file systems are loaded in a different order.")
static struct vfsconf *	vfs_byname_locked (const char *name)
struct vfsconf *	vfs_byname (const char *name)
struct vfsconf *	vfs_byname_kld (const char *fstype, struct thread *td, int *error)
static int	vfs_mount_sigdefer (struct mount *mp)
static int	vfs_unmount_sigdefer (struct mount *mp, int mntflags)
static int	vfs_root_sigdefer (struct mount *mp, int flags, struct vnode **vpp)
static int	vfs_cachedroot_sigdefer (struct mount *mp, int flags, struct vnode **vpp)
static int	vfs_quotactl_sigdefer (struct mount *mp, int cmd, uid_t uid, void *arg, bool *mp_busy)
static int	vfs_statfs_sigdefer (struct mount *mp, struct statfs *sbp)
static int	vfs_sync_sigdefer (struct mount *mp, int waitfor)
static int	vfs_vget_sigdefer (struct mount *mp, ino_t ino, int flags, struct vnode **vpp)
static int	vfs_fhtovp_sigdefer (struct mount *mp, struct fid *fidp, int flags, struct vnode **vpp)
static int	vfs_checkexp_sigdefer (struct mount *mp, struct sockaddr *nam, uint64_t *exflg, struct ucred **credp, int *numsecflavors, int *secflavors)
static int	vfs_extattrctl_sigdefer (struct mount *mp, int cmd, struct vnode *filename_vp, int attrnamespace, const char *attrname)
static int	vfs_sysctl_sigdefer (struct mount *mp, fsctlop_t op, struct sysctl_req *req)
static void	vfs_susp_clean_sigdefer (struct mount *mp)
static void	vfs_reclaim_lowervp_sigdefer (struct mount *mp, struct vnode *vp)
static void	vfs_unlink_lowervp_sigdefer (struct mount *mp, struct vnode *vp)
static void	vfs_purge_sigdefer (struct mount *mp)
int	vfs_modevent (module_t mod, int type, void *data)

Variables
int	maxvfsconf = VFS_GENERIC + 1
struct vfsconfhead	vfsconf = TAILQ_HEAD_INITIALIZER(vfsconf)
struct sx	vfsconf_sx
static int	vfs_typenumhash = 1
struct vattr	va_null
static struct vfsops	vfsops_sigdefer

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

MALLOC_DEFINE()

MALLOC_DEFINE	(	M_VNODE	,
		"vnodes"	,
		"Dynamically allocated vnodes"
	)

SX_SYSINIT()

SX_SYSINIT	(	vfsconf	,
		&	vfsconf_sx,
		"vfsconf"
	)

SYSCTL_INT()

SYSCTL_INT	(	_vfs	,
		OID_AUTO	,
		typenumhash	,
		CTLFLAG_RDTUN	,
		&	vfs_typenumhash,
		0	,
		"Set vfc_typenum using a hash calculation on	vfc_name,
		so that it does not" "change when file systems are loaded in a different order."
	)

vfs_byname()

struct vfsconf * vfs_byname

(

const char *

name

)

Definition at line 129 of file vfs_init.c.

References name, vfs_byname_locked(), and vfsconf.

Referenced by parse_mount(), vfs_byname_kld(), vfs_domount(), and vfs_mountroot_devfs().

Here is the call graph for this function:

Here is the caller graph for this function:

vfs_byname_kld()

struct vfsconf * vfs_byname_kld	(	const char *	fstype,
		struct thread *	td,
		int *	error
	)

Definition at line 140 of file vfs_init.c.

References kern_kldload(), kern_kldunload(), vfs_byname(), and vfsconf.

Referenced by sys_mount(), and vfs_domount().

Here is the call graph for this function:

Here is the caller graph for this function:

vfs_byname_locked()

static struct vfsconf * vfs_byname_locked ( const char *  name )

static

Definition at line 114 of file vfs_init.c.

References name, vfsconf, and vfsconf_sx.

Referenced by vfs_byname(), vfs_register(), and vfs_unregister().

Here is the caller graph for this function:

vfs_cachedroot_sigdefer()

static int vfs_cachedroot_sigdefer ( struct mount *  mp, int  flags, struct vnode **  vpp  )

static

Definition at line 204 of file vfs_init.c.

References flags.

vfs_checkexp_sigdefer()

static int vfs_checkexp_sigdefer ( struct mount *  mp, struct sockaddr *  nam, uint64_t *  exflg, struct ucred **  credp, int *  numsecflavors, int *  secflavors  )

static

Definition at line 273 of file vfs_init.c.

vfs_extattrctl_sigdefer()

static int vfs_extattrctl_sigdefer ( struct mount *  mp, int  cmd, struct vnode *  filename_vp, int  attrnamespace, const char *  attrname  )

static

Definition at line 286 of file vfs_init.c.

References attrnamespace.

vfs_fhtovp_sigdefer()

static int vfs_fhtovp_sigdefer ( struct mount *  mp, struct fid *  fidp, int  flags, struct vnode **  vpp  )

static

Definition at line 261 of file vfs_init.c.

References flags.

vfs_modevent()

int vfs_modevent	(	module_t	mod,
		int	type,
		void *	data
	)

Definition at line 572 of file vfs_init.c.

References data, type, vfs_register(), vfs_unregister(), and vfsconf.

Referenced by mq_modload().

Here is the call graph for this function:

Here is the caller graph for this function:

vfs_mount_sigdefer()

static int vfs_mount_sigdefer ( struct mount *  mp )

static

Definition at line 169 of file vfs_init.c.

vfs_purge_sigdefer()

static void vfs_purge_sigdefer ( struct mount *  mp )

static

Definition at line 346 of file vfs_init.c.

vfs_quotactl_sigdefer()

static int vfs_quotactl_sigdefer ( struct mount *  mp, int  cmd, uid_t  uid, void *  arg, bool *  mp_busy  )

static

Definition at line 215 of file vfs_init.c.

vfs_reclaim_lowervp_sigdefer()

static void vfs_reclaim_lowervp_sigdefer ( struct mount *  mp, struct vnode *  vp  )

static

Definition at line 322 of file vfs_init.c.

vfs_register()

static int vfs_register ( struct vfsconf *  vfc )

static

Definition at line 377 of file vfs_init.c.

References maxvfsconf, printf(), prison_add_vfs(), sysctl_register_oid(), sysctl_unregister_oid(), sysctl_wlock(), sysctl_wunlock(), va_null, vattr_null(), vfs_byname_locked(), vfs_stdcheckexp(), vfs_stdextattrctl(), vfs_stdfhtovp(), vfs_stdinit(), vfs_stdnosync(), vfs_stdquotactl(), vfs_stdroot(), vfs_stdstatfs(), vfs_stdsysctl(), vfs_stduninit(), vfs_stdvget(), vfs_typenumhash, vfsconf, and vfsops_sigdefer.

Referenced by vfs_modevent().

Here is the call graph for this function:

Here is the caller graph for this function:

vfs_root_sigdefer()

static int vfs_root_sigdefer ( struct mount *  mp, int  flags, struct vnode **  vpp  )

static

Definition at line 193 of file vfs_init.c.

References flags.

vfs_statfs_sigdefer()

static int vfs_statfs_sigdefer ( struct mount *  mp, struct statfs *  sbp  )

static

Definition at line 228 of file vfs_init.c.

vfs_susp_clean_sigdefer()

static void vfs_susp_clean_sigdefer ( struct mount *  mp )

static

Definition at line 310 of file vfs_init.c.

vfs_sync_sigdefer()

static int vfs_sync_sigdefer ( struct mount *  mp, int  waitfor  )

static

Definition at line 239 of file vfs_init.c.

vfs_sysctl_sigdefer()

static int vfs_sysctl_sigdefer ( struct mount *  mp, fsctlop_t  op, struct sysctl_req *  req  )

static

Definition at line 299 of file vfs_init.c.

vfs_unlink_lowervp_sigdefer()

static void vfs_unlink_lowervp_sigdefer ( struct mount *  mp, struct vnode *  vp  )

static

Definition at line 334 of file vfs_init.c.

vfs_unmount_sigdefer()

static int vfs_unmount_sigdefer ( struct mount *  mp, int  mntflags  )

static

Definition at line 182 of file vfs_init.c.

vfs_unregister()

static int vfs_unregister ( struct vfsconf *  vfc )

static

Definition at line 530 of file vfs_init.c.

References maxvfsconf, vfs_byname_locked(), and vfsconf.

Referenced by vfs_modevent().

Here is the call graph for this function:

Here is the caller graph for this function:

vfs_vget_sigdefer()

static int vfs_vget_sigdefer ( struct mount *  mp, ino_t  ino, int  flags, struct vnode **  vpp  )

static

Definition at line 250 of file vfs_init.c.

References flags.

Variable Documentation

maxvfsconf

int maxvfsconf = VFS_GENERIC + 1

Definition at line 64 of file vfs_init.c.

Referenced by vfs_register(), vfs_sysctl(), and vfs_unregister().

va_null

struct vattr va_null

Definition at line 90 of file vfs_init.c.

Referenced by vfs_register().

vfs_typenumhash

int vfs_typenumhash = 1

static

Definition at line 80 of file vfs_init.c.

Referenced by vfs_register().

vfsconf

struct vfsconfhead vfsconf = TAILQ_HEAD_INITIALIZER(vfsconf)

Definition at line 70 of file vfs_init.c.

Referenced by sys_mount(), sysctl_ovfs_conf(), sysctl_vfs_conflist(), vfs_byname(), vfs_byname_kld(), vfs_byname_locked(), vfs_domount(), vfs_modevent(), vfs_mountroot_devfs(), vfs_register(), vfs_sysctl(), and vfs_unregister().

vfsconf_sx

struct sx vfsconf_sx

Definition at line 71 of file vfs_init.c.

Referenced by vfs_byname_locked().

vfsops_sigdefer

struct vfsops vfsops_sigdefer

static

Initial value:

= {
        .vfs_mount =            vfs_mount_sigdefer,
        .vfs_unmount =          vfs_unmount_sigdefer,
        .vfs_root =             vfs_root_sigdefer,
        .vfs_cachedroot =       vfs_cachedroot_sigdefer,
        .vfs_quotactl =         vfs_quotactl_sigdefer,
        .vfs_statfs =           vfs_statfs_sigdefer,
        .vfs_sync =             vfs_sync_sigdefer,
        .vfs_vget =             vfs_vget_sigdefer,
        .vfs_fhtovp =           vfs_fhtovp_sigdefer,
        .vfs_checkexp =         vfs_checkexp_sigdefer,
        .vfs_extattrctl =       vfs_extattrctl_sigdefer,
        .vfs_sysctl =           vfs_sysctl_sigdefer,
        .vfs_susp_clean =       vfs_susp_clean_sigdefer,
        .vfs_reclaim_lowervp =  vfs_reclaim_lowervp_sigdefer,
        .vfs_unlink_lowervp =   vfs_unlink_lowervp_sigdefer,
        .vfs_purge =            vfs_purge_sigdefer,
 
}

Definition at line 355 of file vfs_init.c.

Referenced by vfs_register().