2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 #include <afsconfig.h>
11 #include "afs/param.h"
13 #include "afs/sysincludes.h" /*Standard vendor system headers */
14 #include "afsincludes.h" /*AFS-based standard headers */
17 osi_TryEvictVCache(struct vcache *avc, int *slept) {
19 if (!VREFCOUNT_GT(avc,0)
20 && avc->opens == 0 && (avc->f.states & CUnlinkedDel) == 0) {
21 code = afs_FlushVCache(avc, slept);
28 extern char *makesname();
33 char name[METER_NAMSZ];
35 avc = afs_osi_Alloc(sizeof(struct vcache));
37 memset(avc, 0, sizeof(struct vcache));
38 avc->v.v_number = ++afsvnumbers;
39 avc->vc_rwlockid = OSI_NO_LOCKID;
40 initnsema(&avc->vc_rwlock, 1,
41 makesname(name, "vrw", avc->v.v_number));
43 initnsema(&avc->v.v_sync, 0,
44 makesname(name, "vsy", avc->v.v_number));
47 initnlock(&avc->v.v_lock,
48 makesname(name, "vlk", avc->v.v_number));
54 osi_PrePopulateVCache(struct vcache *avc) {
56 memset(&(avc->f), 0, sizeof(struct fvcache));
60 osi_AttachVnode(struct vcache *avc, int seq) { }
63 osi_PostPopulateVCache(struct vcache *avc) {
64 memset(&(avc->vc_bhv_desc), 0, sizeof(avc->vc_bhv_desc));
65 bhv_desc_init(&(avc->vc_bhv_desc), avc, avc, &Afs_vnodeops);
67 #if defined(AFS_SGI65_ENV)
68 vn_bhv_head_init(&(avc->v.v_bh), "afsvp");
69 vn_bhv_insert_initial(&(avc->v.v_bh), &(avc->vc_bhv_desc));
70 avc->v.v_mreg = avc->v.v_mregb = (struct pregion *)avc;
71 # if defined(VNODE_TRACING)
72 avc->v.v_trace = ktrace_alloc(VNODE_TRACE_SIZE, 0);
74 init_bitlock(&avc->v.v_pcacheflag, VNODE_PCACHE_LOCKBIT, "afs_pcache",
76 init_mutex(&avc->v.v_filocksem, MUTEX_DEFAULT, "afsvfl", (long)avc);
77 init_mutex(&avc->v.v_buf_lock, MUTEX_DEFAULT, "afsvnbuf", (long)avc);
79 bhv_head_init(&(avc->v.v_bh));
80 bhv_insert_initial(&(avc->v.v_bh), &(avc->vc_bhv_desc));
83 vnode_pcache_init(&avc->v);
85 #if defined(DEBUG) && defined(VNODE_INIT_BITLOCK)
86 /* Above define is never true execpt in SGI test kernels. */
87 init_bitlock(&avc->v.v_flag, VLOCK, "vnode", avc->v.v_number);
91 AFS_VN_INIT_BUF_LOCK(&(avc->v));
96 VN_SET_DPAGES(&(avc->v), (struct pfdat *)NULL);
97 osi_Assert((avc->v.v_flag & VINACT) == 0);
99 osi_Assert(VN_GET_PGCNT(&(avc->v)) == 0);
100 osi_Assert(avc->mapcnt == 0 && avc->vc_locktrips == 0);
101 osi_Assert(avc->vc_rwlockid == OSI_NO_LOCKID);
102 osi_Assert(avc->v.v_filocks == NULL);
103 # if !defined(AFS_SGI65_ENV)
104 osi_Assert(avc->v.v_filocksem == NULL);
106 osi_Assert(avc->cred == NULL);
107 # if defined(AFS_SGI64_ENV)
108 vnode_pcache_reinit(&avc->v);
109 avc->v.v_rdev = NODEV;
111 vn_initlist((struct vnlist *)&avc->v);