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, int defersleep) {
19 /* we can't control whether we sleep */
20 if (!VREFCOUNT_GT(avc,0)
21 && avc->opens == 0 && (avc->f.states & CUnlinkedDel) == 0) {
22 code = afs_FlushVCache(avc, slept);
29 extern char *makesname();
34 char name[METER_NAMSZ];
36 avc = afs_osi_Alloc(sizeof(struct vcache));
38 memset(avc, 0, sizeof(struct vcache));
39 avc->v.v_number = ++afsvnumbers;
40 avc->vc_rwlockid = OSI_NO_LOCKID;
41 initnsema(&avc->vc_rwlock, 1,
42 makesname(name, "vrw", avc->v.v_number));
44 initnsema(&avc->v.v_sync, 0,
45 makesname(name, "vsy", avc->v.v_number));
48 initnlock(&avc->v.v_lock,
49 makesname(name, "vlk", avc->v.v_number));
55 osi_PrePopulateVCache(struct vcache *avc) {
57 memset(&(avc->f), 0, sizeof(struct fvcache));
61 osi_AttachVnode(struct vcache *avc, int seq) { }
64 osi_PostPopulateVCache(struct vcache *avc) {
65 memset(&(avc->vc_bhv_desc), 0, sizeof(avc->vc_bhv_desc));
66 bhv_desc_init(&(avc->vc_bhv_desc), avc, avc, &Afs_vnodeops);
68 #if defined(AFS_SGI65_ENV)
69 vn_bhv_head_init(&(avc->v.v_bh), "afsvp");
70 vn_bhv_insert_initial(&(avc->v.v_bh), &(avc->vc_bhv_desc));
71 avc->v.v_mreg = avc->v.v_mregb = (struct pregion *)avc;
72 # if defined(VNODE_TRACING)
73 avc->v.v_trace = ktrace_alloc(VNODE_TRACE_SIZE, 0);
75 init_bitlock(&avc->v.v_pcacheflag, VNODE_PCACHE_LOCKBIT, "afs_pcache",
77 init_mutex(&avc->v.v_filocksem, MUTEX_DEFAULT, "afsvfl", (long)avc);
78 init_mutex(&avc->v.v_buf_lock, MUTEX_DEFAULT, "afsvnbuf", (long)avc);
80 bhv_head_init(&(avc->v.v_bh));
81 bhv_insert_initial(&(avc->v.v_bh), &(avc->vc_bhv_desc));
84 vnode_pcache_init(&avc->v);
86 #if defined(DEBUG) && defined(VNODE_INIT_BITLOCK)
87 /* Above define is never true execpt in SGI test kernels. */
88 init_bitlock(&avc->v.v_flag, VLOCK, "vnode", avc->v.v_number);
92 AFS_VN_INIT_BUF_LOCK(&(avc->v));
95 vSetVfsp(avc, afs_globalVFS);
98 VN_SET_DPAGES(&(avc->v), (struct pfdat *)NULL);
99 osi_Assert((avc->v.v_flag & VINACT) == 0);
101 osi_Assert(VN_GET_PGCNT(&(avc->v)) == 0);
102 osi_Assert(avc->mapcnt == 0 && avc->vc_locktrips == 0);
103 osi_Assert(avc->vc_rwlockid == OSI_NO_LOCKID);
104 osi_Assert(avc->v.v_filocks == NULL);
105 # if !defined(AFS_SGI65_ENV)
106 osi_Assert(avc->v.v_filocksem == NULL);
108 osi_Assert(avc->cred == NULL);
109 # if defined(AFS_SGI64_ENV)
110 vnode_pcache_reinit(&avc->v);
111 avc->v.v_rdev = NODEV;
113 vn_initlist((struct vnlist *)&avc->v);