src/afs/UKERNEL/osi_vcache.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   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
   8  */
   9
  10 #include <afsconfig.h>
  11 #include "afs/param.h"
  12
  13 #include "afs/sysincludes.h"    /*Standard vendor system headers */
  14 #include "afsincludes.h"        /*AFS-based standard headers */
  15
  16 int
  17 osi_TryEvictVCache(struct vcache *avc, int *slept, int defersleep) {
  18     int code;
  19
  20     if (!VREFCOUNT_GT(avc,0)
  21         && avc->opens == 0 && (avc->f.states & CUnlinkedDel) == 0) {
  22         code = afs_FlushVCache(avc, slept);
  23         if (code == 0)
  24             return 1;
  25     }
  26     return 0;
  27 }
  28
  29 struct vcache *
  30 osi_NewVnode(void) {
  31     return afs_osi_Alloc(sizeof(struct vcache));
  32 }
  33
  34 void
  35 osi_PrePopulateVCache(struct vcache *avc) {
  36     memset(avc, 0, sizeof(struct vcache));
  37 }
  38
  39 void
  40 osi_AttachVnode(struct vcache *avc, int seq) { }
  41
  42 extern struct vnodeops *afs_ops;
  43 void
  44 osi_PostPopulateVCache(struct vcache *avc) {
  45     AFSTOV(avc)->v_vfsp = afs_globalVFS;
  46     AFSTOV(avc)->v_op = afs_ops;
  47     vSetType(avc, VREG);
  48 }
  49