src/afs/NBSD/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 {
  19     int code;
  20
  21     /* Perhaps this function should use vgone() or vrecycle() instead. */
  22
  23     if ((afs_debug & AFSDEB_GENERAL) != 0) {
  24         printf("%s enter\n", __func__);
  25     }
  26
  27     if (osi_VM_FlushVCache(avc) != 0) {
  28         code = 0;
  29     } else {
  30         code = 1;
  31     }
  32
  33     if ((afs_debug & AFSDEB_GENERAL) != 0) {
  34         printf("%s exit %d\n", __func__, code);
  35     }
  36
  37     return code;
  38 }
  39
  40 struct vcache *
  41 osi_NewVnode(void)
  42 {
  43     struct vcache *tvc;
  44
  45     tvc = afs_osi_Alloc(sizeof(struct vcache));
  46     tvc->v = NULL; /* important to clean this, or use memset 0 */
  47
  48     return tvc;
  49 }
  50
  51 void
  52 osi_PrePopulateVCache(struct vcache *avc)
  53 {
  54     memset(avc, 0, sizeof(struct vcache));
  55 }
  56
  57 void
  58 osi_AttachVnode(struct vcache *avc, int seq)
  59 {
  60     ReleaseWriteLock(&afs_xvcache);
  61     AFS_GUNLOCK();
  62     afs_nbsd_getnewvnode(avc);  /* includes one refcount */
  63     AFS_GLOCK();
  64     ObtainWriteLock(&afs_xvcache,337);
  65 #ifndef AFS_NBSD50_ENV
  66     lockinit(&avc->rwlock, PINOD, "vcache", 0, 0);
  67 #endif
  68 }
  69
  70 void
  71 osi_PostPopulateVCache(struct vcache *avc)
  72 {
  73     AFSTOV(avc)->v_mount = afs_globalVFS;
  74     vSetType(avc, VREG);
  75 }
  76