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"
14 #include "afs/sysincludes.h" /* Standard vendor system headers */
15 #include "afsincludes.h" /* Afs-based standard headers */
16 #include "afs/afs_stats.h" /* afs statistics */
19 int afs_osicred_initialized
= 0;
20 #ifndef AFS_FBSD80_ENV /* cr_groups is now malloc()'d */
21 afs_ucred_t afs_osi_cred
;
23 extern struct osi_dev cacheDev
;
24 extern struct mount
*afs_cacheVfsp
;
28 osi_UFSOpen(afs_dcache_id_t
*ainode
)
30 struct osi_file
*afile
;
32 extern int cacheDiskType
;
35 AFS_STATCNT(osi_UFSOpen
);
36 if (cacheDiskType
!= AFS_FCACHE_TYPE_UFS
)
37 osi_Panic("UFSOpen called for non-UFS cache\n");
38 afile
= osi_AllocSmallSpace(sizeof(struct osi_file
));
40 code
= VFS_VGET(afs_cacheVfsp
, (ino_t
) ainode
->ufs
, LK_EXCLUSIVE
, &vp
);
42 if (code
== 0 && vp
->v_type
== VNON
)
45 osi_FreeSmallSpace(afile
);
46 osi_Panic("UFSOpen: igetinode failed");
48 #if defined(AFS_FBSD80_ENV)
51 VOP_UNLOCK(vp
, 0, curthread
);
54 afile
->size
= VTOI(vp
)->i_size
;
61 afs_osi_Stat(struct osi_file
*afile
, struct osi_stat
*astat
)
65 AFS_STATCNT(osi_Stat
);
67 #if defined(AFS_FBSD80_ENV)
68 vn_lock(afile
->vnode
, LK_EXCLUSIVE
| LK_RETRY
);
69 code
= VOP_GETATTR(afile
->vnode
, &tvattr
, afs_osi_credp
);
70 VOP_UNLOCK(afile
->vnode
, 0);
72 vn_lock(afile
->vnode
, LK_EXCLUSIVE
| LK_RETRY
, curthread
);
73 code
= VOP_GETATTR(afile
->vnode
, &tvattr
, afs_osi_credp
, curthread
);
74 VOP_UNLOCK(afile
->vnode
, LK_EXCLUSIVE
, curthread
);
78 astat
->size
= tvattr
.va_size
;
79 astat
->mtime
= tvattr
.va_mtime
.tv_sec
;
80 astat
->atime
= tvattr
.va_atime
.tv_sec
;
86 osi_UFSClose(struct osi_file
*afile
)
88 AFS_STATCNT(osi_Close
);
90 AFS_RELE(afile
->vnode
);
93 osi_FreeSmallSpace(afile
);
98 osi_UFSTruncate(struct osi_file
*afile
, afs_int32 asize
)
102 afs_int32 code
, glocked
;
103 AFS_STATCNT(osi_Truncate
);
107 * This routine only shrinks files, and most systems
108 * have very slow truncates, even when the file is already
109 * small enough. Check now and save some time.
111 glocked
= ISAFS_GLOCK();
114 #if defined(AFS_FBSD80_ENV)
115 vn_lock(vp
, LK_EXCLUSIVE
| LK_RETRY
);
116 code
= VOP_GETATTR(afile
->vnode
, &tvattr
, afs_osi_credp
);
118 vn_lock(vp
, LK_EXCLUSIVE
| LK_RETRY
, curthread
);
119 code
= VOP_GETATTR(afile
->vnode
, &tvattr
, afs_osi_credp
, curthread
);
121 if (code
!= 0 || tvattr
.va_size
<= asize
)
125 tvattr
.va_size
= asize
;
126 #if defined(AFS_FBSD80_ENV)
127 code
= VOP_SETATTR(vp
, &tvattr
, afs_osi_credp
);
129 code
= VOP_SETATTR(vp
, &tvattr
, afs_osi_credp
, curthread
);
133 #if defined(AFS_FBSD80_ENV)
136 VOP_UNLOCK(vp
, LK_EXCLUSIVE
, curthread
);
144 osi_DisableAtimes(struct vnode
*avp
)
146 struct inode
*ip
= VTOI(avp
);
147 ip
->i_flag
&= ~IN_ACCESS
;
151 /* Generic read interface */
153 afs_osi_Read(struct osi_file
*afile
, int offset
, void *aptr
,
156 #if (__FreeBSD_version >= 900505 && __FreeBSD_Version < 1000000) ||__FreeBSD_version >= 1000009
162 AFS_STATCNT(osi_Read
);
165 * If the osi_file passed in is NULL, panic only if AFS is not shutting
166 * down. No point in crashing when we are already shutting down
169 if (afs_shuttingdown
== AFS_RUNNING
)
170 osi_Panic("osi_Read called with null param");
176 afile
->offset
= offset
;
179 gop_rdwr(UIO_READ
, afile
->vnode
, (caddr_t
) aptr
, asize
, afile
->offset
,
180 AFS_UIOSYS
, IO_UNIT
, afs_osi_credp
, &resid
);
183 code
= asize
- resid
;
184 afile
->offset
+= code
;
185 osi_DisableAtimes(afile
->vnode
);
187 afs_Trace2(afs_iclSetp
, CM_TRACE_READFAILED
, ICL_TYPE_INT32
, (int)resid
,
188 ICL_TYPE_INT32
, code
);
196 /* Generic write interface */
198 afs_osi_Write(struct osi_file
*afile
, afs_int32 offset
, void *aptr
,
201 #if (__FreeBSD_version >= 900505 && __FreeBSD_Version < 1000000) ||__FreeBSD_version >= 1000009
207 AFS_STATCNT(osi_Write
);
209 osi_Panic("afs_osi_Write called with null param");
211 afile
->offset
= offset
;
215 gop_rdwr(UIO_WRITE
, afile
->vnode
, (caddr_t
) aptr
, asize
,
216 afile
->offset
, AFS_UIOSYS
, IO_UNIT
, afs_osi_credp
,
221 code
= asize
- resid
;
222 afile
->offset
+= code
;
229 (*afile
->proc
) (afile
, code
);
235 /* This work should be handled by physstrat in ca/machdep.c.
236 This routine written from the RT NFS port strategy routine.
237 It has been generalized a bit, but should still be pretty clear. */
239 afs_osi_MapStrategy(int (*aproc
) (), struct buf
*bp
)
241 afs_int32 returnCode
;
243 AFS_STATCNT(osi_MapStrategy
);
244 returnCode
= (*aproc
) (bp
);
252 shutdown_osifile(void)
254 AFS_STATCNT(shutdown_osifile
);
255 if (afs_cold_shutdown
) {
256 afs_osicred_initialized
= 0;