| vfs_cache.c (144319) | vfs_cache.c (145006) |
|---|---|
| 1/*- 2 * Copyright (c) 1989, 1993, 1995 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Poul-Henning Kamp of the FreeBSD Project. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 19 unchanged lines hidden (view full) --- 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)vfs_cache.c 8.5 (Berkeley) 3/22/95 33 */ 34 35#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1989, 1993, 1995 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Poul-Henning Kamp of the FreeBSD Project. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 19 unchanged lines hidden (view full) --- 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)vfs_cache.c 8.5 (Berkeley) 3/22/95 33 */ 34 35#include <sys/cdefs.h> |
| 36__FBSDID("$FreeBSD: head/sys/kern/vfs_cache.c 144319 2005-03-30 03:01:36Z das $"); | 36__FBSDID("$FreeBSD: head/sys/kern/vfs_cache.c 145006 2005-04-13 10:59:09Z jeff $"); |
| 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/kernel.h> 41#include <sys/lock.h> 42#include <sys/mutex.h> 43#include <sys/sysctl.h> 44#include <sys/mount.h> --- 294 unchanged lines hidden (view full) --- 339int 340cache_lookup(dvp, vpp, cnp) 341 struct vnode *dvp; 342 struct vnode **vpp; 343 struct componentname *cnp; 344{ 345 struct namecache *ncp; 346 u_int32_t hash; | 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/kernel.h> 41#include <sys/lock.h> 42#include <sys/mutex.h> 43#include <sys/sysctl.h> 44#include <sys/mount.h> --- 294 unchanged lines hidden (view full) --- 339int 340cache_lookup(dvp, vpp, cnp) 341 struct vnode *dvp; 342 struct vnode **vpp; 343 struct componentname *cnp; 344{ 345 struct namecache *ncp; 346 u_int32_t hash; |
| 347 int error; |
|
| 347 348 if (!doingcache) { 349 cnp->cn_flags &= ~MAKEENTRY; 350 return (0); 351 } 352retry: 353 CACHE_LOCK(); 354 numcalls++; --- 87 unchanged lines hidden (view full) --- 442 VREF(*vpp); 443 CACHE_UNLOCK(); 444 return (-1); 445 } 446 if (cnp->cn_flags & ISDOTDOT) 447 VOP_UNLOCK(dvp, 0, cnp->cn_thread); 448 VI_LOCK(*vpp); 449 CACHE_UNLOCK(); | 348 349 if (!doingcache) { 350 cnp->cn_flags &= ~MAKEENTRY; 351 return (0); 352 } 353retry: 354 CACHE_LOCK(); 355 numcalls++; --- 87 unchanged lines hidden (view full) --- 443 VREF(*vpp); 444 CACHE_UNLOCK(); 445 return (-1); 446 } 447 if (cnp->cn_flags & ISDOTDOT) 448 VOP_UNLOCK(dvp, 0, cnp->cn_thread); 449 VI_LOCK(*vpp); 450 CACHE_UNLOCK(); |
| 450 if (vget(*vpp, cnp->cn_lkflags | LK_INTERLOCK, cnp->cn_thread)) { 451 if (cnp->cn_flags & ISDOTDOT) 452 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, cnp->cn_thread); | 451 error = vget(*vpp, cnp->cn_lkflags | LK_INTERLOCK, cnp->cn_thread); 452 if (cnp->cn_flags & ISDOTDOT) 453 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, cnp->cn_thread); 454 if (error) { |
| 453 *vpp = NULL; 454 goto retry; 455 } 456 return (-1); 457} 458 459/* 460 * Add an entry to the cache. --- 401 unchanged lines hidden --- | 455 *vpp = NULL; 456 goto retry; 457 } 458 return (-1); 459} 460 461/* 462 * Add an entry to the cache. --- 401 unchanged lines hidden --- |