vfs_hash.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mount.h>
#include <sys/rwlock.h>
#include <sys/vnode.h>

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Functions
	__FBSDID ("$FreeBSD$")
static	MALLOC_DEFINE (M_VFS_HASH, "vfs_hash", "VFS hash table")
static	LIST_HEAD (vfs_hash_head, vnode)
	SYSINIT (vfs_hash, SI_SUB_VFS, SI_ORDER_SECOND, vfs_hashinit, NULL)
u_int	vfs_hash_index (struct vnode *vp)
static struct vfs_hash_head *	vfs_hash_bucket (const struct mount *mp, u_int hash)
int	vfs_hash_get (const struct mount *mp, u_int hash, int flags, struct thread *td, struct vnode **vpp, vfs_hash_cmp_t *fn, void *arg)
void	vfs_hash_ref (const struct mount *mp, u_int hash, struct thread *td, struct vnode **vpp, vfs_hash_cmp_t *fn, void *arg)
void	vfs_hash_remove (struct vnode *vp)
int	vfs_hash_insert (struct vnode *vp, u_int hash, int flags, struct thread *td, struct vnode **vpp, vfs_hash_cmp_t *fn, void *arg)
void	vfs_hash_rehash (struct vnode *vp, u_int hash)
void	vfs_hash_changesize (u_long newmaxvnodes)

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

LIST_HEAD()

static LIST_HEAD ( vfs_hash_head  , vnode    )

static

Definition at line 43 of file vfs_hash.c.

MALLOC_DEFINE()

static MALLOC_DEFINE ( M_VFS_HASH  , "vfs_hash"  , "VFS hash table"    )

static

SYSINIT()

SYSINIT	(	vfs_hash	,
		SI_SUB_VFS	,
		SI_ORDER_SECOND	,
		vfs_hashinit	,
		NULL
	)

vfs_hash_bucket()

static struct vfs_hash_head * vfs_hash_bucket ( const struct mount *  mp, u_int  hash  )

static

Definition at line 68 of file vfs_hash.c.

Referenced by vfs_hash_changesize(), vfs_hash_get(), vfs_hash_insert(), vfs_hash_ref(), and vfs_hash_rehash().

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vfs_hash_changesize()

void vfs_hash_changesize

(

u_long

newmaxvnodes

)

Definition at line 209 of file vfs_hash.c.

References free(), hashinit(), and vfs_hash_bucket().

Referenced by sysctl_maxvnodes().

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vfs_hash_get()

int vfs_hash_get	(	const struct mount *	mp,
		u_int	hash,
		int	flags,
		struct thread *	td,
		struct vnode **	vpp,
		vfs_hash_cmp_t *	fn,
		void *	arg
	)

Definition at line 75 of file vfs_hash.c.

References flags, vfs_hash_bucket(), vget_finish(), vget_prep(), and vput().

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vfs_hash_index()

u_int vfs_hash_index

(

struct vnode *

vp

)

Definition at line 61 of file vfs_hash.c.

vfs_hash_insert()

int vfs_hash_insert	(	struct vnode *	vp,
		u_int	hash,
		int	flags,
		struct thread *	td,
		struct vnode **	vpp,
		vfs_hash_cmp_t *	fn,
		void *	arg
	)

Definition at line 155 of file vfs_hash.c.

References flags, vfs_hash_bucket(), vget_finish(), vget_prep(), vgone(), and vput().

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vfs_hash_ref()

void vfs_hash_ref	(	const struct mount *	mp,
		u_int	hash,
		struct thread *	td,
		struct vnode **	vpp,
		vfs_hash_cmp_t *	fn,
		void *	arg
	)

Definition at line 116 of file vfs_hash.c.

References vdrop(), vfs_hash_bucket(), vhold(), and vref().

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vfs_hash_rehash()

void vfs_hash_rehash	(	struct vnode *	vp,
		u_int	hash
	)

Definition at line 197 of file vfs_hash.c.

References vfs_hash_bucket().

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vfs_hash_remove()

void vfs_hash_remove

(

struct vnode *

vp

)

Definition at line 146 of file vfs_hash.c.