#include <sys/cdefs.h>
#include "opt_kdtrace.h"
#include "opt_ktrace.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/filedesc.h>
#include <sys/fnv_hash.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/fcntl.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/rwlock.h>
#include <sys/sdt.h>
#include <sys/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/sysproto.h>
#include <sys/vnode.h>
#include <vm/uma.h>

Include dependency graph for vfs_cache.c:

Data Structures
struct	namecache

struct	namecache_ts

Macros
#define	NCF_WHITE 0x01

#define	NCF_ISDOTDOT 0x02

#define	NCF_TS 0x04

#define	NCF_DTS 0x08

#define	NCHHASH(hash) (&nchashtbl[(hash) & nchash])

#define	CACHE_UPGRADE_LOCK() rw_try_upgrade(&cache_lock)

#define	CACHE_RLOCK() rw_rlock(&cache_lock)

#define	CACHE_RUNLOCK() rw_runlock(&cache_lock)

#define	CACHE_WLOCK() rw_wlock(&cache_lock)

#define	CACHE_WUNLOCK() rw_wunlock(&cache_lock)

#define	CACHE_PATH_CUTOFF 35

#define	STATNODE(mode, name, var, descr) SYSCTL_ULONG(_vfs_cache, OID_AUTO, name, mode, var, 0, descr);

#define	STATNODE(name, descr)

Functions
	__FBSDID ("$BSDSUniX$")

	SDT_PROVIDER_DECLARE (vfs)

	SDT_PROBE_DEFINE3 (vfs, namecache, enter, done,"struct vnode ","char ","struct vnode *")

	SDT_PROBE_DEFINE2 (vfs, namecache, enter_negative, done,"struct vnode ","char ")

	SDT_PROBE_DEFINE1 (vfs, namecache, fullpath, entry,"struct vnode *")

	SDT_PROBE_DEFINE3 (vfs, namecache, fullpath, hit,"struct vnode ","char ","struct vnode *")

	SDT_PROBE_DEFINE1 (vfs, namecache, fullpath, miss,"struct vnode *")

	SDT_PROBE_DEFINE3 (vfs, namecache, fullpath, return,"int","struct vnode ","char ")

	SDT_PROBE_DEFINE3 (vfs, namecache, lookup, hit,"struct vnode ","char ","struct vnode *")

	SDT_PROBE_DEFINE2 (vfs, namecache, lookup, hit__negative,"struct vnode ","char ")

	SDT_PROBE_DEFINE2 (vfs, namecache, lookup, miss,"struct vnode ","char ")

	SDT_PROBE_DEFINE1 (vfs, namecache, purge, done,"struct vnode *")

	SDT_PROBE_DEFINE1 (vfs, namecache, purge_negative, done,"struct vnode *")

	SDT_PROBE_DEFINE1 (vfs, namecache, purgevfs, done,"struct mount *")

	SDT_PROBE_DEFINE3 (vfs, namecache, zap, done,"struct vnode ","char ","struct vnode *")

	SDT_PROBE_DEFINE2 (vfs, namecache, zap_negative, done,"struct vnode ","char ")

static	LIST_HEAD (nchashhead, namecache)

static void	cache_free (struct namecache *ncp)

static char *	nc_get_name (struct namecache *ncp)

static void	cache_out_ts (struct namecache ncp, struct timespec tsp, int *ticksp)

	SYSCTL_INT (_debug, OID_AUTO, vfscache, CTLFLAG_RW,&doingcache, 0,"VFS namecache enabled")

	SYSCTL_INT (_debug_sizeof, OID_AUTO, namecache, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, sizeof(struct namecache),"sizeof(struct namecache)")

static	SYSCTL_NODE (_vfs, OID_AUTO, cache, CTLFLAG_RW, 0,"Name cache statistics")

	STATNODE (CTLFLAG_RD, numneg,&numneg,"Number of negative cache entries")

	STATNODE (CTLFLAG_RD, numcache,&numcache,"Number of cache entries")

	STATNODE (CTLFLAG_RD, numcalls,&numcalls,"Number of cache lookups")

	STATNODE (CTLFLAG_RD, dothits,&dothits,"Number of '.' hits")

	STATNODE (CTLFLAG_RD, dotdothits,&dotdothits,"Number of '..' hits")

	STATNODE (CTLFLAG_RD, numchecks,&numchecks,"Number of checks in lookup")

	STATNODE (CTLFLAG_RD, nummiss,&nummiss,"Number of cache misses")

	STATNODE (CTLFLAG_RD, nummisszap,&nummisszap,"Number of cache misses we do not want to cache")

	STATNODE (CTLFLAG_RD, numposzaps,&numposzaps,"Number of cache hits (positive) we do not want to cache")

	STATNODE (CTLFLAG_RD, numposhits,&numposhits,"Number of cache hits (positive)")

	STATNODE (CTLFLAG_RD, numnegzaps,&numnegzaps,"Number of cache hits (negative) we do not want to cache")

	STATNODE (CTLFLAG_RD, numneghits,&numneghits,"Number of cache hits (negative)")

	STATNODE (CTLFLAG_RD, numupgrades,&numupgrades,"Number of updates of the cache after lookup (write lock + retry)")

	SYSCTL_OPAQUE (_vfs_cache, OID_AUTO, nchstats, CTLFLAG_RD\|CTLFLAG_MPSAFE,&nchstats, sizeof(nchstats),"LU","VFS cache effectiveness statistics")

static void	cache_zap (struct namecache *ncp)

static int	vn_vptocnp_locked (struct vnode *vp, struct ucred cred, char buf, u_int buflen)

static int	vn_fullpath1 (struct thread td, struct vnode vp, struct vnode rdir, char buf, char **retbuf, u_int buflen)

static	MALLOC_DEFINE (M_VFSCACHE,"vfscache","VFS name cache entries")

int	cache_lookup_times (struct vnode dvp, struct vnode vpp, struct componentname cnp, struct timespec tsp, int ticksp)

void	cache_enter_time (struct vnode dvp, struct vnode vp, struct componentname cnp, struct timespec tsp, struct timespec *dtsp)

static void	nchinit (void *dummy __unused)

	SYSINIT (vfs, SI_SUB_VFS, SI_ORDER_SECOND, nchinit, NULL)

void	cache_purge (struct vnode *vp)

void	cache_purge_negative (struct vnode *vp)

void	cache_purgevfs (struct mount *mp)

int	vfs_cache_lookup (struct vop_lookup_args *ap)

	SYSCTL_INT (_debug, OID_AUTO, disablecwd, CTLFLAG_RW,&disablecwd, 0,"Disable the getcwd syscall")

int	sys___getcwd (struct thread td, struct __getcwd_args uap)

int	kern___getcwd (struct thread td, char buf, enum uio_seg bufseg, u_int buflen)

	SYSCTL_INT (_debug, OID_AUTO, disablefullpath, CTLFLAG_RW,&disablefullpath, 0,"Disable the vn_fullpath function")

	STATNODE (numfullpathcalls,"Number of fullpath search calls")

	STATNODE (numfullpathfail1,"Number of fullpath search errors (ENOTDIR)")

	STATNODE (numfullpathfail2,"Number of fullpath search errors (VOP_VPTOCNP failures)")

	STATNODE (numfullpathfail4,"Number of fullpath search errors (ENOMEM)")

	STATNODE (numfullpathfound,"Number of successful fullpath calls")

int	vn_fullpath (struct thread td, struct vnode vn, char retbuf, char freebuf)

int	vn_fullpath_global (struct thread td, struct vnode vn, char retbuf, char freebuf)

int	vn_vptocnp (struct vnode *vp, struct ucred cred, char buf, u_int buflen)

struct vnode *	vn_dir_dd_ino (struct vnode *vp)

int	vn_commname (struct vnode vp, char buf, u_int buflen)

void	cache_enter (struct vnode dvp, struct vnode vp, struct componentname *cnp)

int	cache_lookup (struct vnode dvp, struct vnode vpp, struct componentname cnp)

int	vn_path_to_global_path (struct thread td, struct vnode vp, char *path, u_int pathlen)

Variables
static int	doingcache = 1

static u_long	numcalls

static u_long	dothits

static u_long	dotdothits

static u_long	numchecks

static u_long	nummiss

static u_long	nummisszap

static u_long	numposzaps

static u_long	numposhits

static u_long	numnegzaps

static u_long	numneghits

static u_long	numupgrades

static int	disablecwd

static int	disablefullpath

Macro Definition Documentation

#define CACHE_PATH_CUTOFF 35

Referenced by cache_free(), LIST_HEAD(), and nchinit().

#define CACHE_RLOCK ( ) rw_rlock(&cache_lock)

Referenced by cache_lookup_times(), vn_commname(), vn_dir_dd_ino(), vn_fullpath1(), vn_vptocnp(), and vn_vptocnp_locked().

#define CACHE_RUNLOCK ( ) rw_runlock(&cache_lock)

Referenced by cache_lookup_times(), vn_commname(), vn_dir_dd_ino(), vn_fullpath1(), vn_vptocnp(), and vn_vptocnp_locked().

#define CACHE_UPGRADE_LOCK ( ) rw_try_upgrade(&cache_lock)

Referenced by cache_lookup_times().

#define CACHE_WLOCK ( ) rw_wlock(&cache_lock)

Referenced by cache_enter_time(), cache_lookup_times(), cache_purge(), cache_purge_negative(), and cache_purgevfs().

#define CACHE_WUNLOCK ( ) rw_wunlock(&cache_lock)

Referenced by cache_enter_time(), cache_lookup_times(), cache_purge(), cache_purge_negative(), and cache_purgevfs().

#define NCF_DTS 0x08

Definition at line 133 of file vfs_cache.c.

Referenced by cache_enter_time(), and cache_lookup_times().

#define NCF_ISDOTDOT 0x02

Definition at line 131 of file vfs_cache.c.

Referenced by cache_enter_time(), cache_lookup_times(), cache_purge(), cache_zap(), vn_commname(), vn_dir_dd_ino(), and vn_vptocnp_locked().

#define NCF_TS 0x04

Definition at line 132 of file vfs_cache.c.

Referenced by cache_enter_time(), cache_free(), cache_out_ts(), and nc_get_name().

#define NCF_WHITE 0x01

Definition at line 130 of file vfs_cache.c.

Referenced by cache_enter_time(), and cache_lookup_times().

#define NCHHASH ( hash ) (&nchashtbl[(hash) & nchash])

Definition at line 155 of file vfs_cache.c.

Referenced by cache_enter_time(), and cache_lookup_times().

#define STATNODE	(	mode,
		name,
		var,
		descr
	)	SYSCTL_ULONG(_vfs_cache, OID_AUTO, name, mode, var, 0, descr);

Definition at line 1112 of file vfs_cache.c.

#define STATNODE	(	name,
		descr
	)

Value:

static u_int name; \

SYSCTL_UINT(_vfs_cache, OID_AUTO, name, CTLFLAG_RD, &name, 0, descr)

name

const char * name

Definition: kern_fail.c:97

SYSCTL_UINT

SYSCTL_UINT(_kern_eventtimer, OID_AUTO, idletick, CTLFLAG_RW,&idletick, 0,"Run periodic events when idle")

Definition at line 1112 of file vfs_cache.c.

Function Documentation

__FBSDID ( "$BSDSUniX$" )

void cache_enter	(	struct vnode *	dvp,
		struct vnode *	vp,
		struct componentname *	cnp
	)

Definition at line 1436 of file vfs_cache.c.

References cache_enter_time().

Referenced by mqfs_lookupx().

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void cache_enter_time	(	struct vnode *	dvp,
		struct vnode *	vp,
		struct componentname *	cnp,
		struct timespec *	tsp,
		struct timespec *	dtsp
	)

Definition at line 705 of file vfs_cache.c.

References cache_free(), CACHE_WLOCK, CACHE_WUNLOCK, cache_zap(), desiredvnodes, flag, nc_get_name(), NCF_DTS, NCF_ISDOTDOT, NCF_TS, NCF_WHITE, NCHHASH, ticks, and vhold().

Referenced by cache_enter().

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static void cache_free ( struct namecache * ncp )

static

Definition at line 220 of file vfs_cache.c.

References CACHE_PATH_CUTOFF, NCF_TS, and ts.

Referenced by cache_enter_time(), and cache_zap().

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int cache_lookup	(	struct vnode *	dvp,
		struct vnode **	vpp,
		struct componentname *	cnp
	)

Definition at line 1443 of file vfs_cache.c.

References cache_lookup_times().

Referenced by vfs_cache_lookup().

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int cache_lookup_times	(	struct vnode *	dvp,
		struct vnode **	vpp,
		struct componentname *	cnp,
		struct timespec *	tsp,
		int *	ticksp
	)

Definition at line 472 of file vfs_cache.c.

References cache_out_ts(), CACHE_RLOCK, CACHE_RUNLOCK, CACHE_UPGRADE_LOCK, CACHE_WLOCK, CACHE_WUNLOCK, cache_zap(), lookup(), nc_get_name(), NCF_DTS, NCF_ISDOTDOT, NCF_WHITE, NCHHASH, ticks, vget(), vput(), and vrele().

Referenced by cache_lookup().

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static void cache_out_ts	(	struct namecache *	ncp,
		struct timespec *	tsp,
		int *	ticksp
	)

static

Definition at line 250 of file vfs_cache.c.

References NCF_TS.

Referenced by cache_lookup_times().

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void cache_purge ( struct vnode * vp )

Definition at line 941 of file vfs_cache.c.

References CACHE_WLOCK, CACHE_WUNLOCK, cache_zap(), and NCF_ISDOTDOT.

Referenced by do_unlink(), vfs_domount_first(), vfs_mountroot_shuffle(), and vgonel().

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void cache_purge_negative ( struct vnode * vp )

Definition at line 965 of file vfs_cache.c.

References CACHE_WLOCK, CACHE_WUNLOCK, and cache_zap().

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void cache_purgevfs ( struct mount * mp )

Definition at line 984 of file vfs_cache.c.

References CACHE_WLOCK, CACHE_WUNLOCK, and cache_zap().

Referenced by dounmount(), and vfs_mountroot_shuffle().

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static void cache_zap ( struct namecache * ncp )

static

Definition at line 412 of file vfs_cache.c.

References cache_free(), nc_get_name(), NCF_ISDOTDOT, and vdrop().

Referenced by cache_enter_time(), cache_lookup_times(), cache_purge(), cache_purge_negative(), and cache_purgevfs().

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int kern___getcwd	(	struct thread *	td,
		char *	buf,
		enum uio_seg	bufseg,
		u_int	buflen
	)

Definition at line 1063 of file vfs_cache.c.

References free(), malloc(), vn_fullpath1(), and vrele().

Referenced by sys___getcwd().

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static LIST_HEAD	(	nchashhead	,
		namecache
	)

static

Definition at line 157 of file vfs_cache.c.

References CACHE_PATH_CUTOFF.

static MALLOC_DEFINE	(	M_VFSCACHE	,
		"vfscache"	,
		"VFS name cache entries"
	)

static

static char* nc_get_name ( struct namecache * ncp )

static

Definition at line 239 of file vfs_cache.c.

References NCF_TS.

Referenced by cache_enter_time(), cache_lookup_times(), cache_zap(), vn_commname(), and vn_vptocnp_locked().

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static void nchinit ( void *dummy __unused )

static

Definition at line 914 of file vfs_cache.c.

References CACHE_PATH_CUTOFF, desiredvnodes, and hashinit().

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SDT_PROBE_DEFINE1	(	vfs	,
		namecache	,
		fullpath	,
		entry	,
		"struct vnode *"
	)

SDT_PROBE_DEFINE1	(	vfs	,
		namecache	,
		fullpath	,
		miss	,
		"struct vnode *"
	)

SDT_PROBE_DEFINE1	(	vfs	,
		namecache	,
		purge	,
		done	,
		"struct vnode *"
	)

SDT_PROBE_DEFINE1	(	vfs	,
		namecache	,
		purge_negative	,
		done	,
		"struct vnode *"
	)

SDT_PROBE_DEFINE1	(	vfs	,
		namecache	,
		purgevfs	,
		done	,
		"struct mount *"
	)

SDT_PROBE_DEFINE2	(	vfs	,
		namecache	,
		enter_negative	,
		done	,
		"struct vnode *"	,
		"char *"
	)

SDT_PROBE_DEFINE2	(	vfs	,
		namecache	,
		lookup	,
		hit__negative	,
		"struct vnode *"	,
		"char *"
	)

SDT_PROBE_DEFINE2	(	vfs	,
		namecache	,
		lookup	,
		miss	,
		"struct vnode *"	,
		"char *"
	)

SDT_PROBE_DEFINE2	(	vfs	,
		namecache	,
		zap_negative	,
		done	,
		"struct vnode *"	,
		"char *"
	)

SDT_PROBE_DEFINE3	(	vfs	,
		namecache	,
		enter	,
		done	,
		"struct vnode *"	,
		"char *"	,
		"struct vnode *"
	)

SDT_PROBE_DEFINE3	(	vfs	,
		namecache	,
		fullpath	,
		hit	,
		"struct vnode *"	,
		"char *"	,
		"struct vnode *"
	)

SDT_PROBE_DEFINE3	(	vfs	,
		namecache	,
		fullpath	,
		return	,
		"int"	,
		"struct vnode *"	,
		"char *"
	)

SDT_PROBE_DEFINE3	(	vfs	,
		namecache	,
		lookup	,
		hit	,
		"struct vnode *"	,
		"char *"	,
		"struct vnode *"
	)

SDT_PROBE_DEFINE3	(	vfs	,
		namecache	,
		zap	,
		done	,
		"struct vnode *"	,
		"char *"	,
		"struct vnode *"
	)

SDT_PROVIDER_DECLARE ( vfs )

STATNODE	(	CTLFLAG_RD	,
		numneg	,
		&	numneg,
		"Number of negative cache entries"
	)

STATNODE	(	CTLFLAG_RD	,
		numcache	,
		&	numcache,
		"Number of cache entries"
	)

STATNODE	(	CTLFLAG_RD	,
		numcalls	,
		&	numcalls,
		"Number of cache lookups"
	)

STATNODE	(	CTLFLAG_RD	,
		dothits	,
		&	dothits,
		"Number of '.' hits"
	)

STATNODE	(	CTLFLAG_RD	,
		dotdothits	,
		&	dotdothits,
		"Number of '..' hits"
	)

STATNODE	(	CTLFLAG_RD	,
		numchecks	,
		&	numchecks,
		"Number of checks in lookup"
	)

STATNODE	(	CTLFLAG_RD	,
		nummiss	,
		&	nummiss,
		"Number of cache misses"
	)

STATNODE	(	CTLFLAG_RD	,
		nummisszap	,
		&	nummisszap,
		"Number of cache misses we do not want to cache"
	)

STATNODE	(	CTLFLAG_RD	,
		numposzaps	,
		&	numposzaps,
		"Number of cache hits (positive) we do not want to cache"
	)

STATNODE	(	CTLFLAG_RD	,
		numposhits	,
		&	numposhits,
		"Number of cache hits (positive)"
	)

STATNODE	(	CTLFLAG_RD	,
		numnegzaps	,
		&	numnegzaps,
		"Number of cache hits (negative) we do not want to cache"
	)

STATNODE	(	CTLFLAG_RD	,
		numneghits	,
		&	numneghits,
		"Number of cache hits (negative)"
	)

STATNODE	(	CTLFLAG_RD	,
		numupgrades	,
		&	numupgrades,
		"Number of updates of the cache after lookup (write lock + retry)"
	)

STATNODE	(	numfullpathcalls	,
		"Number of fullpath search calls"
	)

STATNODE	(	numfullpathfail1	,
		"Number of fullpath search errors (ENOTDIR)"
	)

STATNODE	(	numfullpathfail2	,
		"Number of fullpath search errors (VOP_VPTOCNP failures)"
	)

STATNODE	(	numfullpathfail4	,
		"Number of fullpath search errors (ENOMEM)"
	)

STATNODE	(	numfullpathfound	,
		"Number of successful fullpath calls"
	)

int sys___getcwd	(	struct thread *	td,
		struct __getcwd_args *	uap
	)

Definition at line 1054 of file vfs_cache.c.

References kern___getcwd().

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SYSCTL_INT	(	_debug	,
		OID_AUTO	,
		vfscache	,
		CTLFLAG_RW	,
		&	doingcache,
		0	,
		"VFS namecache enabled"
	)

SYSCTL_INT	(	_debug_sizeof	,
		OID_AUTO	,
		namecache	,
		CTLFLAG_RD	,
		SYSCTL_NULL_INT_PTR	,
		sizeof(struct namecache)	,
		"sizeof(struct namecache)"
	)

SYSCTL_INT	(	_debug	,
		OID_AUTO	,
		disablecwd	,
		CTLFLAG_RW	,
		&	disablecwd,
		0	,
		"Disable the getcwd syscall"
	)

SYSCTL_INT	(	_debug	,
		OID_AUTO	,
		disablefullpath	,
		CTLFLAG_RW	,
		&	disablefullpath,
		0	,
		"Disable the vn_fullpath function"
	)

static SYSCTL_NODE	(	_vfs	,
		OID_AUTO	,
		cache	,
		CTLFLAG_RW	,
		0	,
		"Name cache statistics"
	)

static

SYSCTL_OPAQUE	(	_vfs_cache	,
		OID_AUTO	,
		nchstats	,
		CTLFLAG_RD\|	CTLFLAG_MPSAFE,
		&	nchstats,
		sizeof(nchstats)	,
		"LU"	,
		"VFS cache effectiveness statistics"
	)

SYSINIT	(	vfs	,
		SI_SUB_VFS	,
		SI_ORDER_SECOND	,
		nchinit	,
		NULL
	)

int vfs_cache_lookup ( struct vop_lookup_args * ap )

Definition at line 1008 of file vfs_cache.c.

References cache_lookup().

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int vn_commname	(	struct vnode *	vp,
		char *	buf,
		u_int	buflen
	)

Definition at line 1406 of file vfs_cache.c.

References CACHE_RLOCK, CACHE_RUNLOCK, nc_get_name(), and NCF_ISDOTDOT.

Referenced by do_execve().

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struct vnode* vn_dir_dd_ino ( struct vnode * vp )

Definition at line 1384 of file vfs_cache.c.

References CACHE_RLOCK, CACHE_RUNLOCK, NCF_ISDOTDOT, and vget().

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int vn_fullpath	(	struct thread *	td,
		struct vnode *	vn,
		char **	retbuf,
		char **	freebuf
	)

Definition at line 1133 of file vfs_cache.c.

References buf, free(), malloc(), vn_fullpath1(), and vrele().

Referenced by do_execve(), fill_vnode_info(), kern_proc_vmmap_out(), ptrace_vm_entry(), and sysctl_kern_proc_pathname().

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static int vn_fullpath1	(	struct thread *	td,
		struct vnode *	vp,
		struct vnode *	rdir,
		char *	buf,
		char **	retbuf,
		u_int	buflen
	)

static

Definition at line 1276 of file vfs_cache.c.

References CACHE_RLOCK, CACHE_RUNLOCK, rootvnode, vn_vptocnp_locked(), vref(), and vrele().

Referenced by kern___getcwd(), vn_fullpath(), and vn_fullpath_global().

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int vn_fullpath_global	(	struct thread *	td,
		struct vnode *	vn,
		char **	retbuf,
		char **	freebuf
	)

Definition at line 1170 of file vfs_cache.c.

References buf, free(), malloc(), rootvnode, and vn_fullpath1().

Referenced by vn_path_to_global_path().

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int vn_path_to_global_path	(	struct thread *	td,
		struct vnode *	vp,
		char *	path,
		u_int	pathlen
	)

Definition at line 1463 of file vfs_cache.c.

References free(), namei(), NDFREE(), vn_fullpath_global(), vput(), and vrele().

Referenced by kern_jail_set(), sys_unmount(), and vfs_domount().

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int vn_vptocnp	(	struct vnode **	vp,
		struct ucred *	cred,
		char *	buf,
		u_int *	buflen
	)

Definition at line 1190 of file vfs_cache.c.

References CACHE_RLOCK, CACHE_RUNLOCK, and vn_vptocnp_locked().

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static int vn_vptocnp_locked	(	struct vnode **	vp,
		struct ucred *	cred,
		char *	buf,
		u_int *	buflen
	)

static

Definition at line 1202 of file vfs_cache.c.

References CACHE_RLOCK, CACHE_RUNLOCK, nc_get_name(), NCF_ISDOTDOT, vput(), vref(), and vrele().

Referenced by vn_fullpath1(), and vn_vptocnp().

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Variable Documentation

int disablecwd

static

Definition at line 1048 of file vfs_cache.c.

int disablefullpath

static

Definition at line 1116 of file vfs_cache.c.

int doingcache = 1

static

Definition at line 263 of file vfs_cache.c.

u_long dotdothits

static

Definition at line 284 of file vfs_cache.c.

u_long dothits

static

Definition at line 282 of file vfs_cache.c.

u_long numcalls

static

Definition at line 280 of file vfs_cache.c.

u_long numchecks

static

Definition at line 286 of file vfs_cache.c.

u_long nummiss

static

Definition at line 288 of file vfs_cache.c.

u_long nummisszap

static

Definition at line 290 of file vfs_cache.c.

u_long numneghits

static

Definition at line 298 of file vfs_cache.c.

u_long numnegzaps

static

Definition at line 296 of file vfs_cache.c.

u_long numposhits

static

Definition at line 294 of file vfs_cache.c.

u_long numposzaps

static

Definition at line 292 of file vfs_cache.c.

u_long numupgrades

static

Definition at line 300 of file vfs_cache.c.

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation