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"
15 * SOLARIS/osi_vnodeops.c
19 * Functions: AFS_TRYUP, _init, _info, _fini, afs_addmap, afs_delmap,
20 * afs_vmread, afs_vmwrite, afs_getpage, afs_GetOnePage, afs_putpage,
21 * afs_putapage, afs_nfsrdwr, afs_map, afs_PageLeft, afs_pathconf/afs_cntl,
22 * afs_ioctl, afs_rwlock, afs_rwunlock, afs_seek, afs_space, afs_dump,
23 * afs_cmp, afs_realvp, afs_pageio, afs_dumpctl, afs_dispose, afs_setsecattr,
24 * afs_getsecattr, gafs_open, gafs_close, gafs_getattr, gafs_setattr,
25 * gafs_access, gafs_lookup, gafs_create, gafs_remove, gafs_link,
26 * gafs_rename, gafs_mkdir, gafs_rmdir, gafs_readdir, gafs_symlink,
27 * gafs_readlink, gafs_fsync, afs_inactive, gafs_inactive, gafs_fid
30 * Variables: Afs_vnodeops
33 #include "afs/sysincludes.h" /* Standard vendor system headers */
34 #include "afsincludes.h" /* Afs-based standard headers */
35 #include "afs/afs_stats.h" /* statistics */
36 #include "afs/nfsclient.h"
45 #include <vm/seg_map.h>
46 #include <vm/seg_vn.h>
48 #if defined(AFS_SUN511_ENV)
49 #include <sys/vfs_opreg.h>
51 #include <sys/modctl.h>
52 #include <sys/syscall.h>
53 #include <sys/debug.h>
54 #include <sys/fs_subr.h>
56 /* Translate a faultcode_t as returned by some of the vm routines
57 * into a suitable errno value.
60 afs_fc2errno(faultcode_t fc)
62 switch (FC_CODE(fc)) {
75 extern struct as kas; /* kernel addr space */
76 extern unsigned char *afs_indexFlags;
77 extern afs_lock_t afs_xdcache;
79 /* Additional vnodeops for SunOS 4.0.x */
80 int afs_nfsrdwr(), afs_getpage(), afs_putpage(), afs_map();
81 int afs_dump(), afs_cmp(), afs_realvp(), afs_GetOnePage();
86 afs_addmap(struct vnode *avp, offset_t offset, struct as *asp,
87 caddr_t addr, int length, int prot, int maxprot, int flags,
90 /* XXX What should we do here?? XXX */
95 afs_delmap(struct vnode *avp, offset_t offset, struct as *asp,
96 caddr_t addr, int length, int prot, int maxprot, int flags,
99 /* XXX What should we do here?? XXX */
103 #ifdef AFS_SUN510_ENV
105 afs_vmread(struct vnode *avp, struct uio *auio, int ioflag,
106 afs_ucred_t *acred, caller_context_t *ct)
109 afs_vmread(struct vnode *avp, struct uio *auio, int ioflag,
115 if (!RW_READ_HELD(&(VTOAFS(avp))->rwlock))
116 osi_Panic("afs_vmread: !rwlock");
118 code = afs_nfsrdwr(VTOAFS(avp), auio, UIO_READ, ioflag, acred);
124 #ifdef AFS_SUN510_ENV
126 afs_vmwrite(struct vnode *avp, struct uio *auio, int ioflag,
127 afs_ucred_t *acred, caller_context_t *ct)
130 afs_vmwrite(struct vnode *avp, struct uio *auio, int ioflag,
136 if (!RW_WRITE_HELD(&(VTOAFS(avp))->rwlock))
137 osi_Panic("afs_vmwrite: !rwlock");
139 code = afs_nfsrdwr(VTOAFS(avp), auio, UIO_WRITE, ioflag, acred);
145 afs_getpage(struct vnode *vp, offset_t off, u_int len, u_int *protp,
146 struct page *pl[], u_int plsz, struct seg *seg, caddr_t addr,
147 enum seg_rw rw, afs_ucred_t *acred)
150 AFS_STATCNT(afs_getpage);
152 if (vp->v_flag & VNOMAP) /* File doesn't allow mapping */
159 afs_GetOnePage(vp, off, len, protp, pl, plsz, seg, addr, rw, acred);
161 struct vcache *vcp = VTOAFS(vp);
162 ObtainWriteLock(&vcp->vlock, 548);
164 ReleaseWriteLock(&vcp->vlock);
165 afs_BozonLock(&vcp->pvnLock, vcp);
167 pvn_getpages(afs_GetOnePage, vp, off, len, protp, pl, plsz, seg, addr, rw, acred);
168 afs_BozonUnlock(&vcp->pvnLock, vcp);
169 ObtainWriteLock(&vcp->vlock, 549);
171 ReleaseWriteLock(&vcp->vlock);
177 /* Return all the pages from [off..off+len) in file */
179 afs_GetOnePage(struct vnode *vp, u_offset_t off, u_int alen, u_int *protp,
180 struct page *pl[], u_int plsz, struct seg *seg, caddr_t addr,
181 enum seg_rw rw, afs_ucred_t *acred)
192 afs_size_t offset, nlen = 0;
193 struct vrequest treq;
194 afs_int32 mapForRead = 0, Code = 0;
198 osi_Panic("GetOnePage: !acred");
200 avc = VTOAFS(vp); /* cast to afs vnode */
202 if (avc->credp /*&& AFS_NFSXLATORREQ(acred) */
203 && AFS_NFSXLATORREQ(avc->credp)) {
206 if (code = afs_InitReq(&treq, acred))
210 /* This is a read-ahead request, e.g. due to madvise. */
212 ObtainReadLock(&avc->lock);
214 while (plen > 0 && !afs_BBusy()) {
215 /* Obtain a dcache entry at off. 2 means don't fetch data. */
217 afs_GetDCache(avc, (afs_offs_t) off, &treq, &offset, &nlen,
222 /* Write-lock the dcache entry, if we don't succeed, just go on */
223 if (0 != NBObtainWriteLock(&tdc->lock, 642)) {
228 /* If we aren't already fetching this dcache entry, queue it */
229 if (!(tdc->mflags & DFFetchReq)) {
232 tdc->mflags |= DFFetchReq;
233 bp = afs_BQueue(BOP_FETCH, avc, B_DONTWAIT, 0, acred,
234 (afs_size_t) off, (afs_size_t) 1, tdc,
235 (void *)0, (void *)0);
237 /* Unable to start background fetch; might as well stop */
238 tdc->mflags &= ~DFFetchReq;
239 ReleaseWriteLock(&tdc->lock);
243 ReleaseWriteLock(&tdc->lock);
245 ReleaseWriteLock(&tdc->lock);
250 /* Adjust our offset and remaining length values */
254 /* If we aren't making progress for some reason, bail out */
259 ReleaseReadLock(&avc->lock);
264 pl[0] = NULL; /* Make sure it's empty */
266 /* first, obtain the proper lock for the VM system */
268 /* if this is a read request, map the page in read-only. This will
269 * allow us to swap out the dcache entry if there are only read-only
270 * pages created for the chunk, which helps a *lot* when dealing
271 * with small caches. Otherwise, we have to invalidate the vm
272 * pages for the range covered by a chunk when we swap out the
275 if (rw == S_READ || rw == S_EXEC)
282 if (rw == S_WRITE || rw == S_CREATE)
283 tdc = afs_GetDCache(avc, (afs_offs_t) off, &treq, &offset, &nlen, 5);
285 tdc = afs_GetDCache(avc, (afs_offs_t) off, &treq, &offset, &nlen, 1);
287 return afs_CheckCode(EINVAL, &treq, 62);
288 code = afs_VerifyVCache(avc, &treq);
291 return afs_CheckCode(code, &treq, 44); /* failed to get it */
294 afs_BozonLock(&avc->pvnLock, avc);
295 ObtainReadLock(&avc->lock);
297 afs_Trace4(afs_iclSetp, CM_TRACE_PAGEIN, ICL_TYPE_POINTER, (afs_int32) vp,
298 ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(off), ICL_TYPE_LONG, len,
299 ICL_TYPE_LONG, (int)rw);
304 /* Check to see if we're in the middle of a VM purge, and if we are, release
305 * the locks and try again when the VM purge is done. */
306 ObtainWriteLock(&avc->vlock, 550);
308 ReleaseReadLock(&avc->lock);
309 ReleaseWriteLock(&avc->vlock);
310 afs_BozonUnlock(&avc->pvnLock, avc);
312 /* Check activeV again, it may have been turned off
313 * while we were waiting for a lock in afs_PutDCache */
314 ObtainWriteLock(&avc->vlock, 574);
316 avc->vstates |= VRevokeWait;
317 ReleaseWriteLock(&avc->vlock);
318 afs_osi_Sleep(&avc->vstates);
320 ReleaseWriteLock(&avc->vlock);
324 ReleaseWriteLock(&avc->vlock);
326 /* We're about to do stuff with our dcache entry.. Lock it. */
327 ObtainReadLock(&tdc->lock);
329 /* Check to see whether the cache entry is still valid */
330 if (!(avc->f.states & CStatd)
331 || !hsame(avc->f.m.DataVersion, tdc->f.versionNo)) {
332 ReleaseReadLock(&tdc->lock);
333 ReleaseReadLock(&avc->lock);
334 afs_BozonUnlock(&avc->pvnLock, avc);
340 while (1) { /* loop over all pages */
341 /* now, try to find the page in memory (it may already be intransit or laying
342 * around the free list */
344 page_lookup(vp, toffset, (rw == S_CREATE ? SE_EXCL : SE_SHARED));
348 /* if we make it here, we can't find the page in memory. Do a real disk read
349 * from the cache to get the data */
350 Code |= 0x200; /* XXX */
351 /* use PG_EXCL because we know the page does not exist already. If it
352 * actually does exist, we have somehow raced between lookup and create.
353 * As of 4/98, that shouldn't be possible, but we'll be defensive here
354 * in case someone tries to relax all the serialization of read and write
355 * operations with harmless things like stat. */
357 page_create_va(vp, toffset, PAGESIZE, PG_WAIT | PG_EXCL, seg,
363 pagezero(page, alen, PAGESIZE - alen);
365 if (rw == S_CREATE) {
366 /* XXX Don't read from AFS in write only cases XXX */
367 page_io_unlock(page);
370 /* now it is time to start I/O operation */
371 buf = pageio_setup(page, PAGESIZE, vp, B_READ); /* allocate a buf structure */
374 buf->b_lblkno = lbtodb(toffset);
375 bp_mapin(buf); /* map it in to our address space */
378 /* afs_ustrategy will want to lock the dcache entry */
379 ReleaseReadLock(&tdc->lock);
380 code = afs_ustrategy(buf, acred); /* do the I/O */
381 ObtainReadLock(&tdc->lock);
384 /* Before freeing unmap the buffer */
390 page_io_unlock(page);
393 /* come here when we have another page (already held) to enter */
395 /* put page in array and continue */
396 /* The p_selock must be downgraded to a shared lock after the page is read */
397 if ((rw != S_CREATE) && !(PAGE_SHARED(page))) {
398 page_downgrade(page);
401 code = page_iolock_assert(page);
407 break; /* done all the pages */
408 } /* while (1) ... */
412 ReleaseReadLock(&tdc->lock);
414 /* Prefetch next chunk if we're at a chunk boundary */
415 if (AFS_CHUNKOFFSET(off) == 0) {
416 if (!(tdc->mflags & DFNextStarted))
417 afs_PrefetchChunk(avc, tdc, acred, &treq);
420 ReleaseReadLock(&avc->lock);
421 ObtainWriteLock(&afs_xdcache, 246);
423 /* track that we have dirty (or dirty-able) pages for this chunk. */
424 afs_indexFlags[tdc->index] |= IFDirtyPages;
426 afs_indexFlags[tdc->index] |= IFAnyPages;
427 ReleaseWriteLock(&afs_xdcache);
428 afs_BozonUnlock(&avc->pvnLock, avc);
430 afs_Trace3(afs_iclSetp, CM_TRACE_PAGEINDONE, ICL_TYPE_LONG, code,
431 ICL_TYPE_LONG, (int)page, ICL_TYPE_LONG, Code);
436 afs_Trace3(afs_iclSetp, CM_TRACE_PAGEINDONE, ICL_TYPE_LONG, code,
437 ICL_TYPE_LONG, (int)page, ICL_TYPE_LONG, Code);
438 /* release all pages, drop locks, return code */
440 pvn_read_done(page, B_ERROR);
441 ReleaseReadLock(&avc->lock);
442 afs_BozonUnlock(&avc->pvnLock, avc);
443 ReleaseReadLock(&tdc->lock);
449 afs_putpage(struct vnode *vp, offset_t off, u_int len, int flags,
457 afs_int32 NPages = 0;
458 u_offset_t toff = off;
461 AFS_STATCNT(afs_putpage);
462 if (vp->v_flag & VNOMAP) /* file doesn't allow mapping */
466 * Putpage (ASYNC) is called every sec to flush out dirty vm pages
469 afs_Trace4(afs_iclSetp, CM_TRACE_PAGEOUT, ICL_TYPE_POINTER,
470 (afs_int32) vp, ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(off),
471 ICL_TYPE_INT32, (afs_int32) len, ICL_TYPE_LONG, (int)flags);
473 afs_BozonLock(&avc->pvnLock, avc);
474 ObtainSharedLock(&avc->lock, 247);
477 /* Get a list of modified (or whatever) pages */
479 endPos = (afs_offs_t) off + len; /* position we're supposed to write up to */
480 while ((afs_offs_t) toff < endPos
481 && (afs_offs_t) toff < avc->f.m.Length) {
482 /* If not invalidating pages use page_lookup_nowait to avoid reclaiming
483 * them from the free list
486 if (flags & (B_FREE | B_INVAL))
487 pages = page_lookup(vp, toff, SE_EXCL);
489 pages = page_lookup_nowait(vp, toff, SE_SHARED);
490 if (!pages || !pvn_getdirty(pages, flags))
496 UpgradeSToWLock(&avc->lock, 671);
500 code = afs_putapage(vp, pages, &toff, &tlen, flags, cred);
511 UpgradeSToWLock(&avc->lock, 670);
516 code = pvn_vplist_dirty(vp, toff, afs_putapage, flags, cred);
520 if (code && !avc->vc_error) {
522 UpgradeSToWLock(&avc->lock, 669);
525 avc->vc_error = code;
529 ReleaseWriteLock(&avc->lock);
531 ReleaseSharedLock(&avc->lock);
532 afs_BozonUnlock(&avc->pvnLock, avc);
533 afs_Trace2(afs_iclSetp, CM_TRACE_PAGEOUTDONE, ICL_TYPE_LONG, code,
534 ICL_TYPE_LONG, NPages);
541 afs_putapage(struct vnode *vp, struct page *pages, u_offset_t * offp,
542 size_t * lenp, int flags, afs_ucred_t *credp)
545 struct vcache *avc = VTOAFS(vp);
547 u_int tlen = PAGESIZE;
548 afs_offs_t off = (pages->p_offset / PAGESIZE) * PAGESIZE;
551 * Now we've got the modified pages. All pages are locked and held
552 * XXX Find a kluster that fits in one block (or page). We also
553 * adjust the i/o if the file space is less than a while page. XXX
555 if (off + tlen > avc->f.m.Length) {
556 tlen = avc->f.m.Length - off;
558 /* can't call mapout with 0 length buffers (rmfree panics) */
559 if (((tlen >> 24) & 0xff) == 0xff) {
564 * Can't call mapout with 0 length buffers since we'll get rmfree panics
566 tbuf = pageio_setup(pages, tlen, vp, B_WRITE | flags);
571 tbuf->b_lblkno = lbtodb(pages->p_offset);
574 afs_Trace4(afs_iclSetp, CM_TRACE_PAGEOUTONE, ICL_TYPE_LONG, avc,
575 ICL_TYPE_LONG, pages, ICL_TYPE_LONG, tlen, ICL_TYPE_OFFSET,
576 ICL_HANDLE_OFFSET(off));
577 code = afs_ustrategy(tbuf, credp); /* unlocks page */
581 pvn_write_done(pages, ((code) ? B_ERROR : 0) | B_WRITE | flags);
592 afs_nfsrdwr(struct vcache *avc, struct uio *auio, enum uio_rw arw,
593 int ioflag, afs_ucred_t *acred)
598 afs_int32 mode, sflags;
600 struct dcache *dcp, *dcp_newpage;
601 afs_size_t fileBase, size;
604 afs_int32 pageOffset, extraResid = 0;
605 afs_size_t origLength; /* length when reading/writing started */
606 long appendLength; /* length when this call will finish */
607 int created; /* created pages instead of faulting them */
609 int didFakeOpen, eof;
610 struct vrequest treq;
614 AFS_STATCNT(afs_nfsrdwr);
616 /* can't read or write other things */
617 if (vType(avc) != VREG)
620 if (auio->uio_resid == 0)
623 afs_Trace4(afs_iclSetp, CM_TRACE_VMRW, ICL_TYPE_POINTER, (afs_int32) avc,
624 ICL_TYPE_LONG, (arw == UIO_WRITE ? 1 : 0), ICL_TYPE_OFFSET,
625 ICL_HANDLE_OFFSET(auio->uio_loffset), ICL_TYPE_OFFSET,
626 ICL_HANDLE_OFFSET(auio->uio_resid));
628 #ifndef AFS_64BIT_CLIENT
629 if (AfsLargeFileUio(auio)) /* file is larger than 2 GB */
634 osi_Panic("rdwr: !acred");
636 if (code = afs_InitReq(&treq, acred))
639 /* It's not really possible to know if a write cause a growth in the
640 * cache size, we we wait for a cache drain for any write.
642 afs_MaybeWakeupTruncateDaemon();
643 while ((arw == UIO_WRITE)
644 && (afs_blocksUsed > PERCENT(CM_WAITFORDRAINPCT, afs_cacheBlocks))) {
645 if (afs_blocksUsed - afs_blocksDiscarded >
646 PERCENT(CM_WAITFORDRAINPCT, afs_cacheBlocks)) {
647 afs_WaitForCacheDrain = 1;
648 afs_osi_Sleep(&afs_WaitForCacheDrain);
650 afs_MaybeFreeDiscardedDCache();
651 afs_MaybeWakeupTruncateDaemon();
653 code = afs_VerifyVCache(avc, &treq);
655 return afs_CheckCode(code, &treq, 45);
657 afs_BozonLock(&avc->pvnLock, avc);
658 osi_FlushPages(avc, acred); /* hold bozon lock, but not basic vnode lock */
660 ObtainWriteLock(&avc->lock, 250);
662 /* adjust parameters when appending files */
663 if ((ioflag & IO_APPEND) && arw == UIO_WRITE) {
664 auio->uio_loffset = avc->f.m.Length; /* write at EOF position */
666 if (auio->afsio_offset < 0 || (auio->afsio_offset + auio->uio_resid) < 0) {
667 ReleaseWriteLock(&avc->lock);
668 afs_BozonUnlock(&avc->pvnLock, avc);
671 #ifndef AFS_64BIT_CLIENT
672 /* file is larger than 2GB */
673 if (AfsLargeFileSize(auio->uio_offset, auio->uio_resid)) {
674 ReleaseWriteLock(&avc->lock);
675 afs_BozonUnlock(&avc->pvnLock, avc);
680 didFakeOpen = 0; /* keep track of open so we can do close */
681 if (arw == UIO_WRITE) {
682 /* do ulimit processing; shrink resid or fail */
683 if (auio->uio_loffset + auio->afsio_resid > auio->uio_llimit) {
684 if (auio->uio_loffset >= auio->uio_llimit) {
685 ReleaseWriteLock(&avc->lock);
686 afs_BozonUnlock(&avc->pvnLock, avc);
689 /* track # of bytes we should write, but won't because of
690 * ulimit; we must add this into the final resid value
691 * so caller knows we punted some data.
693 extraResid = auio->uio_resid;
694 auio->uio_resid = auio->uio_llimit - auio->uio_loffset;
695 extraResid -= auio->uio_resid;
698 mode = S_WRITE; /* segment map-in mode */
699 afs_FakeOpen(avc); /* do this for writes, so data gets put back
700 * when we want it to be put back */
701 didFakeOpen = 1; /* we'll be doing a fake open */
702 /* before starting any I/O, we must ensure that the file is big enough
703 * to hold the results (since afs_putpage will be called to force the I/O */
704 size = auio->afsio_resid + auio->afsio_offset; /* new file size */
706 origLength = avc->f.m.Length;
707 if (size > avc->f.m.Length) {
708 afs_Trace4(afs_iclSetp, CM_TRACE_SETLENGTH, ICL_TYPE_STRING,
709 __FILE__, ICL_TYPE_LONG, __LINE__, ICL_TYPE_OFFSET,
710 ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_OFFSET,
711 ICL_HANDLE_OFFSET(size));
712 avc->f.m.Length = size; /* file grew */
714 avc->f.states |= CDirty; /* Set the dirty bit */
715 avc->f.m.Date = osi_Time(); /* Set file date (for ranlib) */
717 mode = S_READ; /* map-in read-only */
718 origLength = avc->f.m.Length;
721 if (acred && AFS_NFSXLATORREQ(acred)) {
722 if (arw == UIO_READ) {
724 (avc, PRSFS_READ, &treq,
725 CHECK_MODE_BITS | CMB_ALLOW_EXEC_AS_READ)) {
726 ReleaseWriteLock(&avc->lock);
727 afs_BozonUnlock(&avc->pvnLock, avc);
737 counter = 0; /* don't call afs_DoPartialWrite first time through. */
739 /* compute the amount of data to move into this block,
740 * based on auio->afsio_resid. Note that we copy data in units of
741 * MAXBSIZE, not PAGESIZE. This is because segmap_getmap panics if you
742 * call it with an offset based on blocks smaller than MAXBSIZE
743 * (implying that it should be named BSIZE, since it is clearly both a
745 size = auio->afsio_resid; /* transfer size */
746 fileBase = ((arw == UIO_READ) && (origLength < auio->uio_offset)) ?
747 origLength : auio->afsio_offset; /* start file position for xfr */
748 pageBase = fileBase & ~(MAXBSIZE - 1); /* file position of the page */
749 pageOffset = fileBase & (MAXBSIZE - 1); /* xfr start's offset within page */
750 tsize = MAXBSIZE - pageOffset; /* how much more fits in this page */
751 /* we'll read tsize bytes, but first must make sure tsize isn't too big */
753 tsize = size; /* don't read past end of request */
754 eof = 0; /* flag telling us if we hit the EOF on the read */
755 if (arw == UIO_READ) { /* we're doing a read operation */
756 /* don't read past EOF */
757 if (fileBase + tsize > origLength) {
758 tsize = origLength - fileBase;
759 eof = 1; /* we did hit the EOF */
761 tsize = 0; /* better safe than sorry */
765 /* Purge dirty chunks of file if there are too many dirty
766 * chunks. Inside the write loop, we only do this at a chunk
767 * boundary. Clean up partial chunk if necessary at end of loop.
769 if (counter > 0 && code == 0 && AFS_CHUNKOFFSET(fileBase) == 0) {
770 code = afs_DoPartialWrite(avc, &treq);
774 /* write case, we ask segmap_release to call putpage. Really, we
775 * don't have to do this on every page mapin, but for now we're
776 * lazy, and don't modify the rest of AFS to scan for modified
777 * pages on a close or other "synchronize with file server"
778 * operation. This makes things a little cleaner, but probably
779 * hurts performance. */
784 break; /* nothing to transfer, we're done */
786 if (arw == UIO_WRITE)
787 avc->f.states |= CDirty; /* may have been cleared by DoPartialWrite */
789 /* Before dropping lock, hold the chunk (create it if necessary). This
790 * serves two purposes: (1) Ensure Cache Truncate Daemon doesn't try
791 * to purge the chunk's pages while we have them locked. This would
792 * cause deadlock because we might be waiting for the CTD to free up
793 * a chunk. (2) If we're writing past the original EOF, and we're
794 * at the base of the chunk, then make sure it exists online
795 * before we do the uiomove, since the segmap_release will
796 * write out to the chunk, causing it to get fetched if it hasn't
797 * been created yet. The code that would otherwise notice that
798 * we're fetching a chunk past EOF won't work, since we've
799 * already adjusted the file size above.
801 ObtainWriteLock(&avc->vlock, 551);
802 while (avc->vstates & VPageCleaning) {
803 ReleaseWriteLock(&avc->vlock);
804 ReleaseWriteLock(&avc->lock);
805 afs_osi_Sleep(&avc->vstates);
806 ObtainWriteLock(&avc->lock, 334);
807 ObtainWriteLock(&avc->vlock, 552);
809 ReleaseWriteLock(&avc->vlock);
811 afs_size_t toff, tlen;
812 dcp = afs_GetDCache(avc, fileBase, &treq, &toff, &tlen, 2);
818 ReleaseWriteLock(&avc->lock); /* uiomove may page fault */
820 data = segmap_getmap(segkmap, AFSTOV(avc), (u_offset_t) pageBase);
821 raddr = (caddr_t) (((uintptr_t) data + pageOffset) & PAGEMASK);
823 (((u_int) data + pageOffset + tsize + PAGEOFFSET) & PAGEMASK) -
826 /* if we're doing a write, and we're starting at the rounded
827 * down page base, and we're writing enough data to cover all
828 * created pages, then we must be writing all of the pages
829 * in this MAXBSIZE window that we're creating.
832 if (arw == UIO_WRITE && ((long)raddr == (long)data + pageOffset)
834 /* probably the dcache backing this guy is around, but if
835 * not, we can't do this optimization, since we're creating
836 * writable pages, which must be backed by a chunk.
839 dcp_newpage = afs_FindDCache(avc, pageBase);
841 && hsame(avc->f.m.DataVersion, dcp_newpage->f.versionNo)) {
842 ObtainWriteLock(&avc->lock, 251);
843 ObtainWriteLock(&avc->vlock, 576);
844 ObtainReadLock(&dcp_newpage->lock);
845 if ((avc->activeV == 0)
846 && hsame(avc->f.m.DataVersion, dcp_newpage->f.versionNo)
847 && !(dcp_newpage->dflags & (DFFetching))) {
849 segmap_pagecreate(segkmap, raddr, rsize, 1);
851 ObtainWriteLock(&afs_xdcache, 252);
852 /* Mark the pages as created and dirty */
853 afs_indexFlags[dcp_newpage->index]
854 |= (IFAnyPages | IFDirtyPages);
855 ReleaseWriteLock(&afs_xdcache);
858 ReleaseReadLock(&dcp_newpage->lock);
859 afs_PutDCache(dcp_newpage);
860 ReleaseWriteLock(&avc->vlock);
861 ReleaseWriteLock(&avc->lock);
862 } else if (dcp_newpage)
863 afs_PutDCache(dcp_newpage);
868 afs_fc2errno(segmap_fault
869 (kas.a_hat, segkmap, raddr, rsize,
873 AFS_UIOMOVE(data + pageOffset, tsize, arw, auio, code);
874 segmap_fault(kas.a_hat, segkmap, raddr, rsize, F_SOFTUNLOCK,
878 code = segmap_release(segkmap, data, sflags);
880 (void)segmap_release(segkmap, data, 0);
883 ObtainWriteLock(&avc->lock, 253);
891 afs_FakeClose(avc, acred);
893 if (arw == UIO_WRITE && (avc->f.states & CDirty)) {
894 code2 = afs_DoPartialWrite(avc, &treq);
899 if (!code && avc->vc_error) {
900 code = avc->vc_error;
902 ReleaseWriteLock(&avc->lock);
903 afs_BozonUnlock(&avc->pvnLock, avc);
905 if ((ioflag & FSYNC) && (arw == UIO_WRITE)
906 && !AFS_NFSXLATORREQ(acred))
907 code = afs_fsync(avc, 0, acred);
910 * If things worked, add in as remaining in request any bytes
911 * we didn't write due to file size ulimit.
913 if (code == 0 && extraResid > 0)
914 auio->uio_resid += extraResid;
915 return afs_CheckCode(code, &treq, 46);
919 afs_map(struct vnode *vp, offset_t off, struct as *as, caddr_t *addr, u_int len, u_char prot, u_char maxprot, u_int flags, afs_ucred_t *cred)
921 struct segvn_crargs crargs;
923 struct vrequest treq;
924 struct vcache *avc = VTOAFS(vp);
926 AFS_STATCNT(afs_map);
929 /* check for reasonableness on segment bounds; apparently len can be < 0 */
930 if (off < 0 || off + len < 0) {
933 #ifndef AFS_64BIT_CLIENT
934 if (AfsLargeFileSize(off, len)) { /* file is larger than 2 GB */
940 if (vp->v_flag & VNOMAP) /* File isn't allowed to be mapped */
943 if (vp->v_filocks) /* if locked, disallow mapping */
947 if (code = afs_InitReq(&treq, cred))
950 if (vp->v_type != VREG) {
955 code = afs_VerifyVCache(avc, &treq);
959 afs_BozonLock(&avc->pvnLock, avc);
960 osi_FlushPages(avc, cred); /* ensure old pages are gone */
961 avc->f.states |= CMAPPED; /* flag cleared at afs_inactive */
962 afs_BozonUnlock(&avc->pvnLock, avc);
966 if ((flags & MAP_FIXED) == 0) {
967 map_addr(addr, len, off, 1, flags);
974 (void)as_unmap(as, *addr, len); /* unmap old address space use */
975 /* setup the create parameter block for the call */
976 crargs.vp = AFSTOV(avc);
977 crargs.offset = (u_int) off;
979 crargs.type = flags & MAP_TYPE;
981 crargs.maxprot = maxprot;
982 crargs.amp = (struct anon_map *)0;
983 crargs.flags = flags & ~MAP_TYPE;
985 code = as_map(as, *addr, len, segvn_create, (char *)&crargs);
989 code = afs_CheckCode(code, &treq, 47);
993 code = afs_CheckCode(code, &treq, 48);
1000 * For Now We use standard local kernel params for AFS system values. Change this
1004 #ifdef AFS_SUN511_ENV
1005 afs_pathconf(struct vnode *vp, int cmd, u_long *outdatap,
1006 afs_ucred_t *credp, caller_context_t *ct)
1008 afs_pathconf(struct vnode *vp, int cmd, u_long *outdatap,
1010 #endif /* AFS_SUN511_ENV */
1012 AFS_STATCNT(afs_cntl);
1015 *outdatap = MAXLINK;
1018 *outdatap = MAXNAMLEN;
1021 *outdatap = MAXPATHLEN;
1023 case _PC_CHOWN_RESTRICTED:
1029 case _PC_FILESIZEBITS:
1030 #ifdef AFS_64BIT_CLIENT
1037 #ifdef AFS_SUN511_ENV
1038 return fs_pathconf(vp, cmd, outdatap, credp, ct);
1040 return fs_pathconf(vp, cmd, outdatap, credp);
1041 #endif /* AFS_SUN511_ENV */
1047 afs_ioctl(struct vnode *vnp, int com, int arg, int flag, cred_t *credp,
1054 afs_rwlock(struct vnode *vnp, int wlock)
1056 rw_enter(&(VTOAFS(vnp))->rwlock, (wlock ? RW_WRITER : RW_READER));
1061 afs_rwunlock(struct vnode *vnp, int wlock)
1063 rw_exit(&(VTOAFS(vnp))->rwlock);
1069 afs_seek(struct vnode *vnp, offset_t ooff, offset_t *noffp)
1073 #ifndef AFS_64BIT_CLIENT
1074 # define __MAXOFF_T MAXOFF_T
1076 # define __MAXOFF_T MAXOFFSET_T
1079 if ((*noffp < 0 || *noffp > __MAXOFF_T))
1085 #ifdef AFS_SUN59_ENV
1086 afs_frlock(struct vnode *vnp, int cmd, struct flock64 *ap, int flag,
1087 offset_t off, struct flk_callback *flkcb, afs_ucred_t *credp)
1089 afs_frlock(struct vnode *vnp, int cmd, struct flock64 *ap, int flag,
1090 offset_t off, afs_ucred_t *credp)
1095 * Implement based on afs_lockctl
1098 #ifdef AFS_SUN59_ENV
1100 afs_warn("Don't know how to deal with flk_callback's!\n");
1102 if ((cmd == F_GETLK) || (cmd == F_O_GETLK) || (cmd == F_SETLK)
1103 || (cmd == F_SETLKW)) {
1104 ap->l_pid = ttoproc(curthread)->p_pid;
1108 code = convoff(vnp, ap, 0, off);
1114 code = afs_lockctl(VTOAFS(vnp), ap, cmd, credp);
1121 afs_space(struct vnode *vnp, int cmd, struct flock64 *ap, int flag,
1122 offset_t off, afs_ucred_t *credp)
1124 afs_int32 code = EINVAL;
1127 if ((cmd == F_FREESP)
1128 && ((code = convoff(vnp, ap, 0, off)) == 0)) {
1131 vattr.va_mask = AT_SIZE;
1132 vattr.va_size = ap->l_start;
1133 code = afs_setattr(VTOAFS(vnp), &vattr, 0, credp);
1141 afs_dump(struct vnode *vp, caddr_t addr, int i1, int i2)
1143 AFS_STATCNT(afs_dump);
1144 afs_warn("AFS_DUMP. MUST IMPLEMENT THIS!!!\n");
1149 /* Nothing fancy here; just compare if vnodes are identical ones */
1151 afs_cmp(struct vnode *vp1, struct vnode *vp2)
1153 AFS_STATCNT(afs_cmp);
1154 return (vp1 == vp2);
1159 afs_realvp(struct vnode *vp, struct vnode **vpp)
1161 AFS_STATCNT(afs_realvp);
1167 afs_pageio(struct vnode *vp, struct page *pp, u_int ui1, u_int ui2, int i1,
1170 afs_warn("afs_pageio: Not implemented\n");
1175 #ifdef AFS_SUN59_ENV
1176 afs_dumpctl(struct vnode *vp, int i, int *blkp)
1178 afs_dumpctl(struct vnode *vp, int i)
1181 afs_warn("afs_dumpctl: Not implemented\n");
1185 #ifdef AFS_SUN511_ENV
1187 afs_dispose(struct vnode *vp, struct page *p, int fl, int dn, struct cred *cr, struct caller_context_t *ct)
1189 fs_dispose(vp, p, fl, dn, cr,ct);
1193 afs_setsecattr(struct vnode *vp, vsecattr_t *vsecattr, int flag, struct cred *creds, struct caller_context_t *ct)
1199 afs_getsecattr(struct vnode *vp, vsecattr_t *vsecattr, int flag, struct cred *creds, struct caller_context_t *ct)
1201 return fs_fab_acl(vp, vsecattr, flag, creds,ct);
1205 afs_dispose(struct vnode *vp, struct page *p, int fl, int dn, struct cred *cr)
1207 fs_dispose(vp, p, fl, dn, cr);
1211 afs_setsecattr(struct vnode *vp, vsecattr_t *vsecattr, int flag,
1218 afs_getsecattr(struct vnode *vp, vsecattr_t *vsecattr, int flag, struct cred *creds)
1220 return fs_fab_acl(vp, vsecattr, flag, creds);
1224 #ifdef AFS_GLOBAL_SUNLOCK
1225 extern int gafs_open(struct vcache **avcp, afs_int32 aflags,
1226 afs_ucred_t *acred);
1227 extern int gafs_close(struct vcache *avc, afs_int32 aflags,
1228 int count, offset_t offset, afs_ucred_t *acred);
1229 extern int afs_ioctl(struct vnode *vnp, int com, int arg, int flag,
1230 cred_t *credp, int *rvalp);
1231 extern int gafs_access(struct vcache *avc, afs_int32 amode,
1232 int flags, afs_ucred_t *acred);
1233 extern int gafs_getattr(struct vcache *avc,
1234 struct vattr *attrs, int flags,
1235 afs_ucred_t *acred);
1236 extern int gafs_setattr(struct vcache *avc,
1237 struct vattr *attrs, int flags,
1238 afs_ucred_t *acred);
1239 extern int gafs_lookup(struct vcache *adp, char *aname,
1240 struct vcache **avcp, struct pathname *pnp,
1241 int flags, struct vnode *rdir, afs_ucred_t *acred);
1242 extern int gafs_remove(struct vcache *adp, char *aname,
1243 afs_ucred_t *acred);
1244 extern int gafs_link(struct vcache *adp, struct vcache *avc,
1245 char *aname, afs_ucred_t *acred);
1246 extern int gafs_rename(struct vcache *aodp, char *aname1,
1247 struct vcache *andp, char *aname2,
1248 afs_ucred_t *acred);
1249 extern int gafs_symlink(struct vcache *adp, char *aname,
1250 struct vattr *attrs, char *atargetName,
1251 afs_ucred_t *acred);
1252 extern int gafs_rmdir(struct vcache *adp, char *aname,
1253 struct vnode *cdirp, afs_ucred_t *acred);
1254 extern int gafs_mkdir(struct vcache *adp, char *aname,
1255 struct vattr *attrs, struct vcache **avcp,
1256 afs_ucred_t *acred);
1257 extern int gafs_fsync(struct vcache *avc, int flag, afs_ucred_t *acred);
1258 extern int gafs_readlink(struct vcache *avc, struct uio *auio,
1259 afs_ucred_t *acred);
1260 extern int gafs_readdir(struct vcache *avc, struct uio *auio,
1261 afs_ucred_t *acred, int *eofp);
1262 extern void gafs_inactive(struct vcache *avc,
1263 afs_ucred_t *acred);
1264 extern int gafs_fid(struct vcache *avc, struct fid **fidpp);
1265 extern int gafs_create(struct vcache *adp, char *aname,
1266 struct vattr *attrs, enum vcexcl aexcl, int amode,
1267 struct vcache **avcp, afs_ucred_t *acred);
1268 #ifdef AFS_SUN511_ENV
1269 extern int afs_pathconf(struct vnode *vp, int cmd, u_long *outdatap,
1270 afs_ucred_t *credp, caller_context_t *ct);
1272 extern int afs_pathconf(struct vnode *vp, int cmd, u_long *outdatap,
1273 afs_ucred_t *credp);
1274 #endif /* AFS_SUN511_ENV */
1276 #if defined(AFS_SUN511_ENV)
1277 /* The following list must always be NULL-terminated */
1278 const fs_operation_def_t afs_vnodeops_template[] = {
1279 VOPNAME_OPEN, { .vop_open = gafs_open },
1280 VOPNAME_CLOSE, { .vop_close = gafs_close },
1281 VOPNAME_READ, { .vop_read = afs_vmread },
1282 VOPNAME_WRITE, { .vop_write = afs_vmwrite },
1283 VOPNAME_IOCTL, { .vop_ioctl = afs_ioctl },
1284 VOPNAME_SETFL, { .vop_setfl = fs_setfl },
1285 VOPNAME_GETATTR, { .vop_getattr = gafs_getattr },
1286 VOPNAME_SETATTR, { .vop_setattr = gafs_setattr },
1287 VOPNAME_ACCESS, { .vop_access = gafs_access },
1288 VOPNAME_LOOKUP, { .vop_lookup = gafs_lookup },
1289 VOPNAME_CREATE, { .vop_create = gafs_create },
1290 VOPNAME_REMOVE, { .vop_remove = gafs_remove },
1291 VOPNAME_LINK, { .vop_link = gafs_link },
1292 VOPNAME_RENAME, { .vop_rename = gafs_rename },
1293 VOPNAME_MKDIR, { .vop_mkdir = gafs_mkdir },
1294 VOPNAME_RMDIR, { .vop_rmdir = gafs_rmdir },
1295 VOPNAME_READDIR, { .vop_readdir = gafs_readdir },
1296 VOPNAME_SYMLINK, { .vop_symlink = gafs_symlink },
1297 VOPNAME_READLINK, { .vop_readlink = gafs_readlink },
1298 VOPNAME_FSYNC, { .vop_fsync = gafs_fsync },
1299 VOPNAME_INACTIVE, { .vop_inactive = gafs_inactive },
1300 VOPNAME_FID, { .vop_fid = gafs_fid },
1301 VOPNAME_RWLOCK, { .vop_rwlock = afs_rwlock },
1302 VOPNAME_RWUNLOCK, { .vop_rwunlock = afs_rwunlock },
1303 VOPNAME_SEEK, { .vop_seek = afs_seek },
1304 VOPNAME_CMP, { .vop_cmp = afs_cmp },
1305 VOPNAME_FRLOCK, { .vop_frlock = afs_frlock },
1306 VOPNAME_SPACE, { .vop_space = afs_space },
1307 VOPNAME_REALVP, { .vop_realvp = afs_realvp },
1308 VOPNAME_GETPAGE, { .vop_getpage = afs_getpage },
1309 VOPNAME_PUTPAGE, { .vop_putpage = afs_putpage },
1310 VOPNAME_MAP, { .vop_map = afs_map },
1311 VOPNAME_ADDMAP, { .vop_addmap = afs_addmap },
1312 VOPNAME_DELMAP, { .vop_delmap = afs_delmap },
1313 VOPNAME_POLL, { .vop_poll = fs_poll },
1314 VOPNAME_PATHCONF, { .vop_pathconf = afs_pathconf },
1315 VOPNAME_PAGEIO, { .vop_pageio = afs_pageio },
1316 VOPNAME_DUMP, { .vop_dump = afs_dump },
1317 VOPNAME_DUMPCTL, { .vop_dumpctl = afs_dumpctl },
1318 VOPNAME_DISPOSE, { .vop_dispose = afs_dispose },
1319 VOPNAME_GETSECATTR, { .vop_getsecattr = afs_getsecattr },
1320 VOPNAME_SETSECATTR, { .vop_setsecattr = afs_setsecattr },
1321 VOPNAME_SHRLOCK, { .vop_shrlock = fs_shrlock },
1324 vnodeops_t *afs_ops;
1325 #elif defined(AFS_SUN510_ENV)
1326 /* The following list must always be NULL-terminated */
1327 const fs_operation_def_t afs_vnodeops_template[] = {
1328 VOPNAME_OPEN, gafs_open,
1329 VOPNAME_CLOSE, gafs_close,
1330 VOPNAME_READ, afs_vmread,
1331 VOPNAME_WRITE, afs_vmwrite,
1332 VOPNAME_IOCTL, afs_ioctl,
1333 VOPNAME_SETFL, fs_setfl,
1334 VOPNAME_GETATTR, gafs_getattr,
1335 VOPNAME_SETATTR, gafs_setattr,
1336 VOPNAME_ACCESS, gafs_access,
1337 VOPNAME_LOOKUP, gafs_lookup,
1338 VOPNAME_CREATE, gafs_create,
1339 VOPNAME_REMOVE, gafs_remove,
1340 VOPNAME_LINK, gafs_link,
1341 VOPNAME_RENAME, gafs_rename,
1342 VOPNAME_MKDIR, gafs_mkdir,
1343 VOPNAME_RMDIR, gafs_rmdir,
1344 VOPNAME_READDIR, gafs_readdir,
1345 VOPNAME_SYMLINK, gafs_symlink,
1346 VOPNAME_READLINK, gafs_readlink,
1347 VOPNAME_FSYNC, gafs_fsync,
1348 VOPNAME_INACTIVE, gafs_inactive,
1349 VOPNAME_FID, gafs_fid,
1350 VOPNAME_RWLOCK, afs_rwlock,
1351 VOPNAME_RWUNLOCK, afs_rwunlock,
1352 VOPNAME_SEEK, afs_seek,
1353 VOPNAME_CMP, afs_cmp,
1354 VOPNAME_FRLOCK, afs_frlock,
1355 VOPNAME_SPACE, afs_space,
1356 VOPNAME_REALVP, afs_realvp,
1357 VOPNAME_GETPAGE, afs_getpage,
1358 VOPNAME_PUTPAGE, afs_putpage,
1359 VOPNAME_MAP, afs_map,
1360 VOPNAME_ADDMAP, afs_addmap,
1361 VOPNAME_DELMAP, afs_delmap,
1362 VOPNAME_POLL, fs_poll,
1363 VOPNAME_DUMP, afs_dump,
1364 VOPNAME_PATHCONF, afs_pathconf,
1365 VOPNAME_PAGEIO, afs_pageio,
1366 VOPNAME_DUMPCTL, afs_dumpctl,
1367 VOPNAME_DISPOSE, afs_dispose,
1368 VOPNAME_GETSECATTR, afs_getsecattr,
1369 VOPNAME_SETSECATTR, afs_setsecattr,
1370 VOPNAME_SHRLOCK, fs_shrlock,
1373 struct vnodeops *afs_ops;
1375 struct vnodeops Afs_vnodeops = {
1420 struct vnodeops *afs_ops = &Afs_vnodeops;
1424 gafs_open(struct vcache **avcp, afs_int32 aflags,
1430 code = afs_open(avcp, aflags, acred);
1436 gafs_close(struct vcache *avc, afs_int32 aflags, int count,
1437 offset_t offset, afs_ucred_t *acred)
1442 code = afs_close(avc, aflags, count, offset, acred);
1448 gafs_getattr(struct vcache *avc, struct vattr *attrs,
1449 int flags, afs_ucred_t *acred)
1454 code = afs_getattr(avc, attrs, flags, acred);
1461 gafs_setattr(struct vcache *avc, struct vattr *attrs,
1462 int flags, afs_ucred_t *acred)
1467 code = afs_setattr(avc, attrs, flags, acred);
1474 gafs_access(struct vcache *avc, afs_int32 amode, int flags,
1480 code = afs_access(avc, amode, flags, acred);
1487 gafs_lookup(struct vcache *adp, char *aname,
1488 struct vcache **avcp, struct pathname *pnp, int flags,
1489 struct vnode *rdir, afs_ucred_t *acred)
1494 code = afs_lookup(adp, aname, avcp, pnp, flags, rdir, acred);
1501 gafs_create(struct vcache *adp, char *aname, struct vattr *attrs,
1502 enum vcexcl aexcl, int amode, struct vcache **avcp,
1508 code = afs_create(adp, aname, attrs, aexcl, amode, avcp, acred);
1514 gafs_remove(struct vcache *adp, char *aname, afs_ucred_t *acred)
1519 code = afs_remove(adp, aname, acred);
1525 gafs_link(struct vcache *adp, struct vcache *avc,
1526 char *aname, afs_ucred_t *acred)
1531 code = afs_link(adp, avc, aname, acred);
1537 gafs_rename(struct vcache *aodp, char *aname1,
1538 struct vcache *andp, char *aname2,
1544 code = afs_rename(aodp, aname1, andp, aname2, acred);
1545 #ifdef AFS_SUN510_ENV
1547 struct vcache *avcp = NULL;
1549 (void) afs_lookup(andp, aname2, &avcp, NULL, 0, NULL, acred);
1551 struct vnode *vp = AFSTOV(avcp), *pvp = AFSTOV(andp);
1553 mutex_enter(&vp->v_lock);
1554 if (vp->v_path != NULL) {
1555 kmem_free(vp->v_path, strlen(vp->v_path) + 1);
1558 mutex_exit(&vp->v_lock);
1559 vn_setpath(afs_globalVp, pvp, vp, aname2, strlen(aname2));
1570 gafs_mkdir(struct vcache *adp, char *aname, struct vattr *attrs,
1571 struct vcache **avcp, afs_ucred_t *acred)
1576 code = afs_mkdir(adp, aname, attrs, avcp, acred);
1582 gafs_rmdir(struct vcache *adp, char *aname, struct vnode *cdirp,
1588 code = afs_rmdir(adp, aname, cdirp, acred);
1595 gafs_readdir(struct vcache *avc, struct uio *auio,
1596 afs_ucred_t *acred, int *eofp)
1601 code = afs_readdir(avc, auio, acred, eofp);
1607 gafs_symlink(struct vcache *adp, char *aname, struct vattr *attrs,
1608 char *atargetName, afs_ucred_t *acred)
1613 code = afs_symlink(adp, aname, attrs, atargetName, acred);
1620 gafs_readlink(struct vcache *avc, struct uio *auio, afs_ucred_t *acred)
1625 code = afs_readlink(avc, auio, acred);
1631 gafs_fsync(struct vcache *avc, int flag, afs_ucred_t *acred)
1636 code = afs_fsync(avc, flag, acred);
1642 afs_inactive(struct vcache *avc, afs_ucred_t *acred)
1644 struct vnode *vp = AFSTOV(avc);
1645 if (afs_shuttingdown)
1649 * In Solaris and HPUX s800 and HP-UX10.0 they actually call us with
1650 * v_count 1 on last reference!
1652 mutex_enter(&vp->v_lock);
1653 if (avc->vrefCount <= 0)
1654 osi_Panic("afs_inactive : v_count <=0\n");
1657 * If more than 1 don't unmap the vnode but do decrement the ref count
1660 if (vp->v_count > 0) {
1661 mutex_exit(&vp->v_lock);
1664 mutex_exit(&vp->v_lock);
1667 * Solaris calls VOP_OPEN on exec, but doesn't call VOP_CLOSE when
1668 * the executable exits. So we clean up the open count here.
1670 * Only do this for mvstat 0 vnodes: when using fakestat, we can't
1671 * lose the open count for volume roots (mvstat 2), even though they
1672 * will get VOP_INACTIVE'd when released by afs_PutFakeStat().
1674 if (avc->opens > 0 && avc->mvstat == 0 && !(avc->f.states & CCore))
1675 avc->opens = avc->execsOrWriters = 0;
1677 afs_InactiveVCache(avc, acred);
1680 /* VFS_RELE must be called outside of GLOCK, since it can potentially
1681 * call afs_freevfs, which acquires GLOCK */
1682 VFS_RELE(afs_globalVFS);
1689 gafs_inactive(struct vcache *avc, afs_ucred_t *acred)
1692 (void)afs_inactive(avc, acred);
1698 gafs_fid(struct vcache *avc, struct fid **fidpp)
1703 code = afs_fid(avc, fidpp);
1708 #endif /* AFS_GLOBAL_SUNLOCK */