1 /* AFS File Server client stubs
3 * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
12 #include <linux/init.h>
13 #include <linux/slab.h>
14 #include <linux/sched.h>
15 #include <linux/circ_buf.h>
16 #include <linux/iversion.h>
20 #include "protocol_yfs.h"
22 static const struct afs_fid afs_zero_fid;
24 static inline void afs_use_fs_server(struct afs_call *call, struct afs_cb_interest *cbi)
26 call->cbi = afs_get_cb_interest(cbi);
30 * decode an AFSFid block
32 static void xdr_decode_AFSFid(const __be32 **_bp, struct afs_fid *fid)
34 const __be32 *bp = *_bp;
36 fid->vid = ntohl(*bp++);
37 fid->vnode = ntohl(*bp++);
38 fid->unique = ntohl(*bp++);
43 * Dump a bad file status record.
45 static void xdr_dump_bad(const __be32 *bp)
50 pr_notice("AFS XDR: Bad status record\n");
51 for (i = 0; i < 5 * 4 * 4; i += 16) {
54 pr_notice("%03x: %08x %08x %08x %08x\n",
55 i, ntohl(x[0]), ntohl(x[1]), ntohl(x[2]), ntohl(x[3]));
59 pr_notice("0x50: %08x\n", ntohl(x[0]));
63 * Update the core inode struct from a returned status record.
65 void afs_update_inode_from_status(struct afs_vnode *vnode,
66 struct afs_file_status *status,
67 const afs_dataversion_t *expected_version,
73 t = status->mtime_client;
74 vnode->vfs_inode.i_ctime = t;
75 vnode->vfs_inode.i_mtime = t;
76 vnode->vfs_inode.i_atime = t;
78 if (flags & (AFS_VNODE_META_CHANGED | AFS_VNODE_NOT_YET_SET)) {
79 vnode->vfs_inode.i_uid = make_kuid(&init_user_ns, status->owner);
80 vnode->vfs_inode.i_gid = make_kgid(&init_user_ns, status->group);
81 set_nlink(&vnode->vfs_inode, status->nlink);
83 mode = vnode->vfs_inode.i_mode;
87 vnode->vfs_inode.i_mode = mode;
90 if (!(flags & AFS_VNODE_NOT_YET_SET)) {
91 if (expected_version &&
92 *expected_version != status->data_version) {
93 _debug("vnode modified %llx on {%llx:%llu} [exp %llx]",
94 (unsigned long long) status->data_version,
95 vnode->fid.vid, vnode->fid.vnode,
96 (unsigned long long) *expected_version);
97 vnode->invalid_before = status->data_version;
98 if (vnode->status.type == AFS_FTYPE_DIR) {
99 if (test_and_clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags))
100 afs_stat_v(vnode, n_inval);
102 set_bit(AFS_VNODE_ZAP_DATA, &vnode->flags);
104 } else if (vnode->status.type == AFS_FTYPE_DIR) {
105 /* Expected directory change is handled elsewhere so
106 * that we can locally edit the directory and save on a
109 if (test_bit(AFS_VNODE_DIR_VALID, &vnode->flags))
110 flags &= ~AFS_VNODE_DATA_CHANGED;
114 if (flags & (AFS_VNODE_DATA_CHANGED | AFS_VNODE_NOT_YET_SET)) {
115 inode_set_iversion_raw(&vnode->vfs_inode, status->data_version);
116 i_size_write(&vnode->vfs_inode, status->size);
121 * decode an AFSFetchStatus block
123 static int xdr_decode_AFSFetchStatus(struct afs_call *call,
125 struct afs_file_status *status,
126 struct afs_vnode *vnode,
127 const afs_dataversion_t *expected_version,
128 struct afs_read *read_req)
130 const struct afs_xdr_AFSFetchStatus *xdr = (const void *)*_bp;
131 bool inline_error = (call->operation_ID == afs_FS_InlineBulkStatus);
132 u64 data_version, size;
133 u32 type, abort_code;
136 abort_code = ntohl(xdr->abort_code);
138 if (xdr->if_version != htonl(AFS_FSTATUS_VERSION)) {
139 if (xdr->if_version == htonl(0) &&
142 /* The OpenAFS fileserver has a bug in FS.InlineBulkStatus
143 * whereby it doesn't set the interface version in the error
146 status->abort_code = abort_code;
150 pr_warn("Unknown AFSFetchStatus version %u\n", ntohl(xdr->if_version));
154 if (abort_code != 0 && inline_error) {
155 status->abort_code = abort_code;
159 type = ntohl(xdr->type);
163 case AFS_FTYPE_SYMLINK:
164 if (type != status->type &&
166 !test_bit(AFS_VNODE_UNSET, &vnode->flags)) {
167 pr_warning("Vnode %llx:%llx:%x changed type %u to %u\n",
180 #define EXTRACT_M(FIELD) \
182 u32 x = ntohl(xdr->FIELD); \
183 if (status->FIELD != x) { \
184 flags |= AFS_VNODE_META_CHANGED; \
192 EXTRACT_M(caller_access); /* call ticket dependent */
193 EXTRACT_M(anon_access);
197 status->mtime_client.tv_sec = ntohl(xdr->mtime_client);
198 status->mtime_client.tv_nsec = 0;
199 status->mtime_server.tv_sec = ntohl(xdr->mtime_server);
200 status->mtime_server.tv_nsec = 0;
201 status->lock_count = ntohl(xdr->lock_count);
203 size = (u64)ntohl(xdr->size_lo);
204 size |= (u64)ntohl(xdr->size_hi) << 32;
207 data_version = (u64)ntohl(xdr->data_version_lo);
208 data_version |= (u64)ntohl(xdr->data_version_hi) << 32;
209 if (data_version != status->data_version) {
210 status->data_version = data_version;
211 flags |= AFS_VNODE_DATA_CHANGED;
215 read_req->data_version = data_version;
216 read_req->file_size = size;
219 *_bp = (const void *)*_bp + sizeof(*xdr);
222 if (test_bit(AFS_VNODE_UNSET, &vnode->flags))
223 flags |= AFS_VNODE_NOT_YET_SET;
224 afs_update_inode_from_status(vnode, status, expected_version,
232 return afs_protocol_error(call, -EBADMSG, afs_eproto_bad_status);
236 * Decode the file status. We need to lock the target vnode if we're going to
237 * update its status so that stat() sees the attributes update atomically.
239 static int afs_decode_status(struct afs_call *call,
241 struct afs_file_status *status,
242 struct afs_vnode *vnode,
243 const afs_dataversion_t *expected_version,
244 struct afs_read *read_req)
249 return xdr_decode_AFSFetchStatus(call, _bp, status, vnode,
250 expected_version, read_req);
252 write_seqlock(&vnode->cb_lock);
253 ret = xdr_decode_AFSFetchStatus(call, _bp, status, vnode,
254 expected_version, read_req);
255 write_sequnlock(&vnode->cb_lock);
260 * decode an AFSCallBack block
262 static void xdr_decode_AFSCallBack(struct afs_call *call,
263 struct afs_vnode *vnode,
266 struct afs_cb_interest *old, *cbi = call->cbi;
267 const __be32 *bp = *_bp;
270 write_seqlock(&vnode->cb_lock);
272 if (!afs_cb_is_broken(call->cb_break, vnode, cbi)) {
273 vnode->cb_version = ntohl(*bp++);
274 cb_expiry = ntohl(*bp++);
275 vnode->cb_type = ntohl(*bp++);
276 vnode->cb_expires_at = cb_expiry + ktime_get_real_seconds();
277 old = vnode->cb_interest;
278 if (old != call->cbi) {
279 vnode->cb_interest = cbi;
282 set_bit(AFS_VNODE_CB_PROMISED, &vnode->flags);
287 write_sequnlock(&vnode->cb_lock);
292 static ktime_t xdr_decode_expiry(struct afs_call *call, u32 expiry)
294 return ktime_add_ns(call->reply_time, expiry * NSEC_PER_SEC);
297 static void xdr_decode_AFSCallBack_raw(struct afs_call *call,
299 struct afs_callback *cb)
301 const __be32 *bp = *_bp;
303 cb->version = ntohl(*bp++);
304 cb->expires_at = xdr_decode_expiry(call, ntohl(*bp++));
305 cb->type = ntohl(*bp++);
310 * decode an AFSVolSync block
312 static void xdr_decode_AFSVolSync(const __be32 **_bp,
313 struct afs_volsync *volsync)
315 const __be32 *bp = *_bp;
318 creation = ntohl(*bp++);
327 volsync->creation = creation;
331 * encode the requested attributes into an AFSStoreStatus block
333 static void xdr_encode_AFS_StoreStatus(__be32 **_bp, struct iattr *attr)
336 u32 mask = 0, mtime = 0, owner = 0, group = 0, mode = 0;
339 if (attr->ia_valid & ATTR_MTIME) {
340 mask |= AFS_SET_MTIME;
341 mtime = attr->ia_mtime.tv_sec;
344 if (attr->ia_valid & ATTR_UID) {
345 mask |= AFS_SET_OWNER;
346 owner = from_kuid(&init_user_ns, attr->ia_uid);
349 if (attr->ia_valid & ATTR_GID) {
350 mask |= AFS_SET_GROUP;
351 group = from_kgid(&init_user_ns, attr->ia_gid);
354 if (attr->ia_valid & ATTR_MODE) {
355 mask |= AFS_SET_MODE;
356 mode = attr->ia_mode & S_IALLUGO;
360 *bp++ = htonl(mtime);
361 *bp++ = htonl(owner);
362 *bp++ = htonl(group);
364 *bp++ = 0; /* segment size */
369 * decode an AFSFetchVolumeStatus block
371 static void xdr_decode_AFSFetchVolumeStatus(const __be32 **_bp,
372 struct afs_volume_status *vs)
374 const __be32 *bp = *_bp;
376 vs->vid = ntohl(*bp++);
377 vs->parent_id = ntohl(*bp++);
378 vs->online = ntohl(*bp++);
379 vs->in_service = ntohl(*bp++);
380 vs->blessed = ntohl(*bp++);
381 vs->needs_salvage = ntohl(*bp++);
382 vs->type = ntohl(*bp++);
383 vs->min_quota = ntohl(*bp++);
384 vs->max_quota = ntohl(*bp++);
385 vs->blocks_in_use = ntohl(*bp++);
386 vs->part_blocks_avail = ntohl(*bp++);
387 vs->part_max_blocks = ntohl(*bp++);
388 vs->vol_copy_date = 0;
389 vs->vol_backup_date = 0;
394 * deliver reply data to an FS.FetchStatus
396 static int afs_deliver_fs_fetch_status_vnode(struct afs_call *call)
398 struct afs_vnode *vnode = call->reply[0];
402 ret = afs_transfer_reply(call);
406 _enter("{%llx:%llu}", vnode->fid.vid, vnode->fid.vnode);
408 /* unmarshall the reply once we've received all of it */
410 ret = afs_decode_status(call, &bp, &vnode->status, vnode,
411 &call->expected_version, NULL);
414 xdr_decode_AFSCallBack(call, vnode, &bp);
415 xdr_decode_AFSVolSync(&bp, call->reply[1]);
417 _leave(" = 0 [done]");
422 * FS.FetchStatus operation type
424 static const struct afs_call_type afs_RXFSFetchStatus_vnode = {
425 .name = "FS.FetchStatus(vnode)",
426 .op = afs_FS_FetchStatus,
427 .deliver = afs_deliver_fs_fetch_status_vnode,
428 .destructor = afs_flat_call_destructor,
432 * fetch the status information for a file
434 int afs_fs_fetch_file_status(struct afs_fs_cursor *fc, struct afs_volsync *volsync,
437 struct afs_vnode *vnode = fc->vnode;
438 struct afs_call *call;
439 struct afs_net *net = afs_v2net(vnode);
442 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
443 return yfs_fs_fetch_file_status(fc, volsync, new_inode);
445 _enter(",%x,{%llx:%llu},,",
446 key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
448 call = afs_alloc_flat_call(net, &afs_RXFSFetchStatus_vnode,
449 16, (21 + 3 + 6) * 4);
451 fc->ac.error = -ENOMEM;
456 call->reply[0] = vnode;
457 call->reply[1] = volsync;
458 call->expected_version = new_inode ? 1 : vnode->status.data_version;
459 call->want_reply_time = true;
461 /* marshall the parameters */
463 bp[0] = htonl(FSFETCHSTATUS);
464 bp[1] = htonl(vnode->fid.vid);
465 bp[2] = htonl(vnode->fid.vnode);
466 bp[3] = htonl(vnode->fid.unique);
468 call->cb_break = fc->cb_break;
469 afs_use_fs_server(call, fc->cbi);
470 trace_afs_make_fs_call(call, &vnode->fid);
472 afs_make_call(&fc->ac, call, GFP_NOFS);
473 return afs_wait_for_call_to_complete(call, &fc->ac);
477 * deliver reply data to an FS.FetchData
479 static int afs_deliver_fs_fetch_data(struct afs_call *call)
481 struct afs_vnode *vnode = call->reply[0];
482 struct afs_read *req = call->reply[2];
487 _enter("{%u,%zu/%llu}",
488 call->unmarshall, iov_iter_count(&call->iter), req->actual_len);
490 switch (call->unmarshall) {
494 req->offset = req->pos & (PAGE_SIZE - 1);
496 if (call->operation_ID == FSFETCHDATA64) {
497 afs_extract_to_tmp64(call);
499 call->tmp_u = htonl(0);
500 afs_extract_to_tmp(call);
503 /* extract the returned data length */
505 _debug("extract data length");
506 ret = afs_extract_data(call, true);
510 req->actual_len = be64_to_cpu(call->tmp64);
511 _debug("DATA length: %llu", req->actual_len);
512 req->remain = min(req->len, req->actual_len);
513 if (req->remain == 0)
519 ASSERTCMP(req->index, <, req->nr_pages);
520 if (req->remain > PAGE_SIZE - req->offset)
521 size = PAGE_SIZE - req->offset;
524 call->bvec[0].bv_len = size;
525 call->bvec[0].bv_offset = req->offset;
526 call->bvec[0].bv_page = req->pages[req->index];
527 iov_iter_bvec(&call->iter, READ, call->bvec, 1, size);
528 ASSERTCMP(size, <=, PAGE_SIZE);
530 /* extract the returned data */
532 _debug("extract data %zu/%llu",
533 iov_iter_count(&call->iter), req->remain);
535 ret = afs_extract_data(call, true);
538 req->remain -= call->bvec[0].bv_len;
539 req->offset += call->bvec[0].bv_len;
540 ASSERTCMP(req->offset, <=, PAGE_SIZE);
541 if (req->offset == PAGE_SIZE) {
544 req->page_done(call, req);
550 ASSERTCMP(req->remain, ==, 0);
551 if (req->actual_len <= req->len)
554 /* Discard any excess data the server gave us */
555 iov_iter_discard(&call->iter, READ, req->actual_len - req->len);
556 call->unmarshall = 3;
558 _debug("extract discard %zu/%llu",
559 iov_iter_count(&call->iter), req->actual_len - req->len);
561 ret = afs_extract_data(call, true);
566 call->unmarshall = 4;
567 afs_extract_to_buf(call, (21 + 3 + 6) * 4);
569 /* extract the metadata */
571 ret = afs_extract_data(call, false);
576 ret = afs_decode_status(call, &bp, &vnode->status, vnode,
577 &vnode->status.data_version, req);
580 xdr_decode_AFSCallBack(call, vnode, &bp);
581 xdr_decode_AFSVolSync(&bp, call->reply[1]);
589 for (; req->index < req->nr_pages; req->index++) {
590 if (req->offset < PAGE_SIZE)
591 zero_user_segment(req->pages[req->index],
592 req->offset, PAGE_SIZE);
594 req->page_done(call, req);
598 _leave(" = 0 [done]");
602 static void afs_fetch_data_destructor(struct afs_call *call)
604 struct afs_read *req = call->reply[2];
607 afs_flat_call_destructor(call);
611 * FS.FetchData operation type
613 static const struct afs_call_type afs_RXFSFetchData = {
614 .name = "FS.FetchData",
615 .op = afs_FS_FetchData,
616 .deliver = afs_deliver_fs_fetch_data,
617 .destructor = afs_fetch_data_destructor,
620 static const struct afs_call_type afs_RXFSFetchData64 = {
621 .name = "FS.FetchData64",
622 .op = afs_FS_FetchData64,
623 .deliver = afs_deliver_fs_fetch_data,
624 .destructor = afs_fetch_data_destructor,
628 * fetch data from a very large file
630 static int afs_fs_fetch_data64(struct afs_fs_cursor *fc, struct afs_read *req)
632 struct afs_vnode *vnode = fc->vnode;
633 struct afs_call *call;
634 struct afs_net *net = afs_v2net(vnode);
639 call = afs_alloc_flat_call(net, &afs_RXFSFetchData64, 32, (21 + 3 + 6) * 4);
644 call->reply[0] = vnode;
645 call->reply[1] = NULL; /* volsync */
646 call->reply[2] = req;
647 call->expected_version = vnode->status.data_version;
648 call->want_reply_time = true;
650 /* marshall the parameters */
652 bp[0] = htonl(FSFETCHDATA64);
653 bp[1] = htonl(vnode->fid.vid);
654 bp[2] = htonl(vnode->fid.vnode);
655 bp[3] = htonl(vnode->fid.unique);
656 bp[4] = htonl(upper_32_bits(req->pos));
657 bp[5] = htonl(lower_32_bits(req->pos));
659 bp[7] = htonl(lower_32_bits(req->len));
661 refcount_inc(&req->usage);
662 call->cb_break = fc->cb_break;
663 afs_use_fs_server(call, fc->cbi);
664 trace_afs_make_fs_call(call, &vnode->fid);
665 afs_make_call(&fc->ac, call, GFP_NOFS);
666 return afs_wait_for_call_to_complete(call, &fc->ac);
670 * fetch data from a file
672 int afs_fs_fetch_data(struct afs_fs_cursor *fc, struct afs_read *req)
674 struct afs_vnode *vnode = fc->vnode;
675 struct afs_call *call;
676 struct afs_net *net = afs_v2net(vnode);
679 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
680 return yfs_fs_fetch_data(fc, req);
682 if (upper_32_bits(req->pos) ||
683 upper_32_bits(req->len) ||
684 upper_32_bits(req->pos + req->len))
685 return afs_fs_fetch_data64(fc, req);
689 call = afs_alloc_flat_call(net, &afs_RXFSFetchData, 24, (21 + 3 + 6) * 4);
694 call->reply[0] = vnode;
695 call->reply[1] = NULL; /* volsync */
696 call->reply[2] = req;
697 call->expected_version = vnode->status.data_version;
698 call->want_reply_time = true;
700 /* marshall the parameters */
702 bp[0] = htonl(FSFETCHDATA);
703 bp[1] = htonl(vnode->fid.vid);
704 bp[2] = htonl(vnode->fid.vnode);
705 bp[3] = htonl(vnode->fid.unique);
706 bp[4] = htonl(lower_32_bits(req->pos));
707 bp[5] = htonl(lower_32_bits(req->len));
709 refcount_inc(&req->usage);
710 call->cb_break = fc->cb_break;
711 afs_use_fs_server(call, fc->cbi);
712 trace_afs_make_fs_call(call, &vnode->fid);
713 afs_make_call(&fc->ac, call, GFP_NOFS);
714 return afs_wait_for_call_to_complete(call, &fc->ac);
718 * deliver reply data to an FS.CreateFile or an FS.MakeDir
720 static int afs_deliver_fs_create_vnode(struct afs_call *call)
722 struct afs_vnode *vnode = call->reply[0];
726 _enter("{%u}", call->unmarshall);
728 ret = afs_transfer_reply(call);
732 /* unmarshall the reply once we've received all of it */
734 xdr_decode_AFSFid(&bp, call->reply[1]);
735 ret = afs_decode_status(call, &bp, call->reply[2], NULL, NULL, NULL);
738 ret = afs_decode_status(call, &bp, &vnode->status, vnode,
739 &call->expected_version, NULL);
742 xdr_decode_AFSCallBack_raw(call, &bp, call->reply[3]);
743 /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
745 _leave(" = 0 [done]");
750 * FS.CreateFile and FS.MakeDir operation type
752 static const struct afs_call_type afs_RXFSCreateFile = {
753 .name = "FS.CreateFile",
754 .op = afs_FS_CreateFile,
755 .deliver = afs_deliver_fs_create_vnode,
756 .destructor = afs_flat_call_destructor,
759 static const struct afs_call_type afs_RXFSMakeDir = {
760 .name = "FS.MakeDir",
761 .op = afs_FS_MakeDir,
762 .deliver = afs_deliver_fs_create_vnode,
763 .destructor = afs_flat_call_destructor,
767 * create a file or make a directory
769 int afs_fs_create(struct afs_fs_cursor *fc,
772 u64 current_data_version,
773 struct afs_fid *newfid,
774 struct afs_file_status *newstatus,
775 struct afs_callback *newcb)
777 struct afs_vnode *vnode = fc->vnode;
778 struct afs_call *call;
779 struct afs_net *net = afs_v2net(vnode);
780 size_t namesz, reqsz, padsz;
783 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags)){
785 return yfs_fs_make_dir(fc, name, mode, current_data_version,
786 newfid, newstatus, newcb);
788 return yfs_fs_create_file(fc, name, mode, current_data_version,
789 newfid, newstatus, newcb);
794 namesz = strlen(name);
795 padsz = (4 - (namesz & 3)) & 3;
796 reqsz = (5 * 4) + namesz + padsz + (6 * 4);
798 call = afs_alloc_flat_call(
799 net, S_ISDIR(mode) ? &afs_RXFSMakeDir : &afs_RXFSCreateFile,
800 reqsz, (3 + 21 + 21 + 3 + 6) * 4);
805 call->reply[0] = vnode;
806 call->reply[1] = newfid;
807 call->reply[2] = newstatus;
808 call->reply[3] = newcb;
809 call->expected_version = current_data_version + 1;
810 call->want_reply_time = true;
812 /* marshall the parameters */
814 *bp++ = htonl(S_ISDIR(mode) ? FSMAKEDIR : FSCREATEFILE);
815 *bp++ = htonl(vnode->fid.vid);
816 *bp++ = htonl(vnode->fid.vnode);
817 *bp++ = htonl(vnode->fid.unique);
818 *bp++ = htonl(namesz);
819 memcpy(bp, name, namesz);
820 bp = (void *) bp + namesz;
822 memset(bp, 0, padsz);
823 bp = (void *) bp + padsz;
825 *bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME);
826 *bp++ = htonl(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
827 *bp++ = 0; /* owner */
828 *bp++ = 0; /* group */
829 *bp++ = htonl(mode & S_IALLUGO); /* unix mode */
830 *bp++ = 0; /* segment size */
832 afs_use_fs_server(call, fc->cbi);
833 trace_afs_make_fs_call1(call, &vnode->fid, name);
834 afs_make_call(&fc->ac, call, GFP_NOFS);
835 return afs_wait_for_call_to_complete(call, &fc->ac);
839 * Deliver reply data to any operation that returns file status and volume
842 static int afs_deliver_fs_status_and_vol(struct afs_call *call)
844 struct afs_vnode *vnode = call->reply[0];
848 _enter("{%u}", call->unmarshall);
850 ret = afs_transfer_reply(call);
854 /* unmarshall the reply once we've received all of it */
856 ret = afs_decode_status(call, &bp, &vnode->status, vnode,
857 &call->expected_version, NULL);
860 /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
862 _leave(" = 0 [done]");
867 * FS.RemoveDir/FS.RemoveFile operation type
869 static const struct afs_call_type afs_RXFSRemoveFile = {
870 .name = "FS.RemoveFile",
871 .op = afs_FS_RemoveFile,
872 .deliver = afs_deliver_fs_status_and_vol,
873 .destructor = afs_flat_call_destructor,
876 static const struct afs_call_type afs_RXFSRemoveDir = {
877 .name = "FS.RemoveDir",
878 .op = afs_FS_RemoveDir,
879 .deliver = afs_deliver_fs_status_and_vol,
880 .destructor = afs_flat_call_destructor,
884 * remove a file or directory
886 int afs_fs_remove(struct afs_fs_cursor *fc, struct afs_vnode *vnode,
887 const char *name, bool isdir, u64 current_data_version)
889 struct afs_vnode *dvnode = fc->vnode;
890 struct afs_call *call;
891 struct afs_net *net = afs_v2net(dvnode);
892 size_t namesz, reqsz, padsz;
895 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
896 return yfs_fs_remove(fc, vnode, name, isdir, current_data_version);
900 namesz = strlen(name);
901 padsz = (4 - (namesz & 3)) & 3;
902 reqsz = (5 * 4) + namesz + padsz;
904 call = afs_alloc_flat_call(
905 net, isdir ? &afs_RXFSRemoveDir : &afs_RXFSRemoveFile,
906 reqsz, (21 + 6) * 4);
911 call->reply[0] = dvnode;
912 call->reply[1] = vnode;
913 call->expected_version = current_data_version + 1;
915 /* marshall the parameters */
917 *bp++ = htonl(isdir ? FSREMOVEDIR : FSREMOVEFILE);
918 *bp++ = htonl(dvnode->fid.vid);
919 *bp++ = htonl(dvnode->fid.vnode);
920 *bp++ = htonl(dvnode->fid.unique);
921 *bp++ = htonl(namesz);
922 memcpy(bp, name, namesz);
923 bp = (void *) bp + namesz;
925 memset(bp, 0, padsz);
926 bp = (void *) bp + padsz;
929 afs_use_fs_server(call, fc->cbi);
930 trace_afs_make_fs_call1(call, &dvnode->fid, name);
931 afs_make_call(&fc->ac, call, GFP_NOFS);
932 return afs_wait_for_call_to_complete(call, &fc->ac);
936 * deliver reply data to an FS.Link
938 static int afs_deliver_fs_link(struct afs_call *call)
940 struct afs_vnode *dvnode = call->reply[0], *vnode = call->reply[1];
944 _enter("{%u}", call->unmarshall);
946 ret = afs_transfer_reply(call);
950 /* unmarshall the reply once we've received all of it */
952 ret = afs_decode_status(call, &bp, &vnode->status, vnode, NULL, NULL);
955 ret = afs_decode_status(call, &bp, &dvnode->status, dvnode,
956 &call->expected_version, NULL);
959 /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
961 _leave(" = 0 [done]");
966 * FS.Link operation type
968 static const struct afs_call_type afs_RXFSLink = {
971 .deliver = afs_deliver_fs_link,
972 .destructor = afs_flat_call_destructor,
978 int afs_fs_link(struct afs_fs_cursor *fc, struct afs_vnode *vnode,
979 const char *name, u64 current_data_version)
981 struct afs_vnode *dvnode = fc->vnode;
982 struct afs_call *call;
983 struct afs_net *net = afs_v2net(vnode);
984 size_t namesz, reqsz, padsz;
987 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
988 return yfs_fs_link(fc, vnode, name, current_data_version);
992 namesz = strlen(name);
993 padsz = (4 - (namesz & 3)) & 3;
994 reqsz = (5 * 4) + namesz + padsz + (3 * 4);
996 call = afs_alloc_flat_call(net, &afs_RXFSLink, reqsz, (21 + 21 + 6) * 4);
1000 call->key = fc->key;
1001 call->reply[0] = dvnode;
1002 call->reply[1] = vnode;
1003 call->expected_version = current_data_version + 1;
1005 /* marshall the parameters */
1007 *bp++ = htonl(FSLINK);
1008 *bp++ = htonl(dvnode->fid.vid);
1009 *bp++ = htonl(dvnode->fid.vnode);
1010 *bp++ = htonl(dvnode->fid.unique);
1011 *bp++ = htonl(namesz);
1012 memcpy(bp, name, namesz);
1013 bp = (void *) bp + namesz;
1015 memset(bp, 0, padsz);
1016 bp = (void *) bp + padsz;
1018 *bp++ = htonl(vnode->fid.vid);
1019 *bp++ = htonl(vnode->fid.vnode);
1020 *bp++ = htonl(vnode->fid.unique);
1022 afs_use_fs_server(call, fc->cbi);
1023 trace_afs_make_fs_call1(call, &vnode->fid, name);
1024 afs_make_call(&fc->ac, call, GFP_NOFS);
1025 return afs_wait_for_call_to_complete(call, &fc->ac);
1029 * deliver reply data to an FS.Symlink
1031 static int afs_deliver_fs_symlink(struct afs_call *call)
1033 struct afs_vnode *vnode = call->reply[0];
1037 _enter("{%u}", call->unmarshall);
1039 ret = afs_transfer_reply(call);
1043 /* unmarshall the reply once we've received all of it */
1045 xdr_decode_AFSFid(&bp, call->reply[1]);
1046 ret = afs_decode_status(call, &bp, call->reply[2], NULL, NULL, NULL);
1049 ret = afs_decode_status(call, &bp, &vnode->status, vnode,
1050 &call->expected_version, NULL);
1053 /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
1055 _leave(" = 0 [done]");
1060 * FS.Symlink operation type
1062 static const struct afs_call_type afs_RXFSSymlink = {
1063 .name = "FS.Symlink",
1064 .op = afs_FS_Symlink,
1065 .deliver = afs_deliver_fs_symlink,
1066 .destructor = afs_flat_call_destructor,
1070 * create a symbolic link
1072 int afs_fs_symlink(struct afs_fs_cursor *fc,
1074 const char *contents,
1075 u64 current_data_version,
1076 struct afs_fid *newfid,
1077 struct afs_file_status *newstatus)
1079 struct afs_vnode *vnode = fc->vnode;
1080 struct afs_call *call;
1081 struct afs_net *net = afs_v2net(vnode);
1082 size_t namesz, reqsz, padsz, c_namesz, c_padsz;
1085 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
1086 return yfs_fs_symlink(fc, name, contents, current_data_version,
1091 namesz = strlen(name);
1092 padsz = (4 - (namesz & 3)) & 3;
1094 c_namesz = strlen(contents);
1095 c_padsz = (4 - (c_namesz & 3)) & 3;
1097 reqsz = (6 * 4) + namesz + padsz + c_namesz + c_padsz + (6 * 4);
1099 call = afs_alloc_flat_call(net, &afs_RXFSSymlink, reqsz,
1100 (3 + 21 + 21 + 6) * 4);
1104 call->key = fc->key;
1105 call->reply[0] = vnode;
1106 call->reply[1] = newfid;
1107 call->reply[2] = newstatus;
1108 call->expected_version = current_data_version + 1;
1110 /* marshall the parameters */
1112 *bp++ = htonl(FSSYMLINK);
1113 *bp++ = htonl(vnode->fid.vid);
1114 *bp++ = htonl(vnode->fid.vnode);
1115 *bp++ = htonl(vnode->fid.unique);
1116 *bp++ = htonl(namesz);
1117 memcpy(bp, name, namesz);
1118 bp = (void *) bp + namesz;
1120 memset(bp, 0, padsz);
1121 bp = (void *) bp + padsz;
1123 *bp++ = htonl(c_namesz);
1124 memcpy(bp, contents, c_namesz);
1125 bp = (void *) bp + c_namesz;
1127 memset(bp, 0, c_padsz);
1128 bp = (void *) bp + c_padsz;
1130 *bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME);
1131 *bp++ = htonl(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
1132 *bp++ = 0; /* owner */
1133 *bp++ = 0; /* group */
1134 *bp++ = htonl(S_IRWXUGO); /* unix mode */
1135 *bp++ = 0; /* segment size */
1137 afs_use_fs_server(call, fc->cbi);
1138 trace_afs_make_fs_call1(call, &vnode->fid, name);
1139 afs_make_call(&fc->ac, call, GFP_NOFS);
1140 return afs_wait_for_call_to_complete(call, &fc->ac);
1144 * deliver reply data to an FS.Rename
1146 static int afs_deliver_fs_rename(struct afs_call *call)
1148 struct afs_vnode *orig_dvnode = call->reply[0], *new_dvnode = call->reply[1];
1152 _enter("{%u}", call->unmarshall);
1154 ret = afs_transfer_reply(call);
1158 /* unmarshall the reply once we've received all of it */
1160 ret = afs_decode_status(call, &bp, &orig_dvnode->status, orig_dvnode,
1161 &call->expected_version, NULL);
1164 if (new_dvnode != orig_dvnode) {
1165 ret = afs_decode_status(call, &bp, &new_dvnode->status, new_dvnode,
1166 &call->expected_version_2, NULL);
1170 /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
1172 _leave(" = 0 [done]");
1177 * FS.Rename operation type
1179 static const struct afs_call_type afs_RXFSRename = {
1180 .name = "FS.Rename",
1181 .op = afs_FS_Rename,
1182 .deliver = afs_deliver_fs_rename,
1183 .destructor = afs_flat_call_destructor,
1187 * create a symbolic link
1189 int afs_fs_rename(struct afs_fs_cursor *fc,
1190 const char *orig_name,
1191 struct afs_vnode *new_dvnode,
1192 const char *new_name,
1193 u64 current_orig_data_version,
1194 u64 current_new_data_version)
1196 struct afs_vnode *orig_dvnode = fc->vnode;
1197 struct afs_call *call;
1198 struct afs_net *net = afs_v2net(orig_dvnode);
1199 size_t reqsz, o_namesz, o_padsz, n_namesz, n_padsz;
1202 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
1203 return yfs_fs_rename(fc, orig_name,
1204 new_dvnode, new_name,
1205 current_orig_data_version,
1206 current_new_data_version);
1210 o_namesz = strlen(orig_name);
1211 o_padsz = (4 - (o_namesz & 3)) & 3;
1213 n_namesz = strlen(new_name);
1214 n_padsz = (4 - (n_namesz & 3)) & 3;
1217 4 + o_namesz + o_padsz +
1219 4 + n_namesz + n_padsz;
1221 call = afs_alloc_flat_call(net, &afs_RXFSRename, reqsz, (21 + 21 + 6) * 4);
1225 call->key = fc->key;
1226 call->reply[0] = orig_dvnode;
1227 call->reply[1] = new_dvnode;
1228 call->expected_version = current_orig_data_version + 1;
1229 call->expected_version_2 = current_new_data_version + 1;
1231 /* marshall the parameters */
1233 *bp++ = htonl(FSRENAME);
1234 *bp++ = htonl(orig_dvnode->fid.vid);
1235 *bp++ = htonl(orig_dvnode->fid.vnode);
1236 *bp++ = htonl(orig_dvnode->fid.unique);
1237 *bp++ = htonl(o_namesz);
1238 memcpy(bp, orig_name, o_namesz);
1239 bp = (void *) bp + o_namesz;
1241 memset(bp, 0, o_padsz);
1242 bp = (void *) bp + o_padsz;
1245 *bp++ = htonl(new_dvnode->fid.vid);
1246 *bp++ = htonl(new_dvnode->fid.vnode);
1247 *bp++ = htonl(new_dvnode->fid.unique);
1248 *bp++ = htonl(n_namesz);
1249 memcpy(bp, new_name, n_namesz);
1250 bp = (void *) bp + n_namesz;
1252 memset(bp, 0, n_padsz);
1253 bp = (void *) bp + n_padsz;
1256 afs_use_fs_server(call, fc->cbi);
1257 trace_afs_make_fs_call2(call, &orig_dvnode->fid, orig_name, new_name);
1258 afs_make_call(&fc->ac, call, GFP_NOFS);
1259 return afs_wait_for_call_to_complete(call, &fc->ac);
1263 * deliver reply data to an FS.StoreData
1265 static int afs_deliver_fs_store_data(struct afs_call *call)
1267 struct afs_vnode *vnode = call->reply[0];
1273 ret = afs_transfer_reply(call);
1277 /* unmarshall the reply once we've received all of it */
1279 ret = afs_decode_status(call, &bp, &vnode->status, vnode,
1280 &call->expected_version, NULL);
1283 /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
1285 afs_pages_written_back(vnode, call);
1287 _leave(" = 0 [done]");
1292 * FS.StoreData operation type
1294 static const struct afs_call_type afs_RXFSStoreData = {
1295 .name = "FS.StoreData",
1296 .op = afs_FS_StoreData,
1297 .deliver = afs_deliver_fs_store_data,
1298 .destructor = afs_flat_call_destructor,
1301 static const struct afs_call_type afs_RXFSStoreData64 = {
1302 .name = "FS.StoreData64",
1303 .op = afs_FS_StoreData64,
1304 .deliver = afs_deliver_fs_store_data,
1305 .destructor = afs_flat_call_destructor,
1309 * store a set of pages to a very large file
1311 static int afs_fs_store_data64(struct afs_fs_cursor *fc,
1312 struct address_space *mapping,
1313 pgoff_t first, pgoff_t last,
1314 unsigned offset, unsigned to,
1315 loff_t size, loff_t pos, loff_t i_size)
1317 struct afs_vnode *vnode = fc->vnode;
1318 struct afs_call *call;
1319 struct afs_net *net = afs_v2net(vnode);
1322 _enter(",%x,{%llx:%llu},,",
1323 key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
1325 call = afs_alloc_flat_call(net, &afs_RXFSStoreData64,
1326 (4 + 6 + 3 * 2) * 4,
1331 call->key = fc->key;
1332 call->mapping = mapping;
1333 call->reply[0] = vnode;
1334 call->first = first;
1336 call->first_offset = offset;
1338 call->send_pages = true;
1339 call->expected_version = vnode->status.data_version + 1;
1341 /* marshall the parameters */
1343 *bp++ = htonl(FSSTOREDATA64);
1344 *bp++ = htonl(vnode->fid.vid);
1345 *bp++ = htonl(vnode->fid.vnode);
1346 *bp++ = htonl(vnode->fid.unique);
1348 *bp++ = htonl(AFS_SET_MTIME); /* mask */
1349 *bp++ = htonl(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
1350 *bp++ = 0; /* owner */
1351 *bp++ = 0; /* group */
1352 *bp++ = 0; /* unix mode */
1353 *bp++ = 0; /* segment size */
1355 *bp++ = htonl(pos >> 32);
1356 *bp++ = htonl((u32) pos);
1357 *bp++ = htonl(size >> 32);
1358 *bp++ = htonl((u32) size);
1359 *bp++ = htonl(i_size >> 32);
1360 *bp++ = htonl((u32) i_size);
1362 trace_afs_make_fs_call(call, &vnode->fid);
1363 afs_make_call(&fc->ac, call, GFP_NOFS);
1364 return afs_wait_for_call_to_complete(call, &fc->ac);
1368 * store a set of pages
1370 int afs_fs_store_data(struct afs_fs_cursor *fc, struct address_space *mapping,
1371 pgoff_t first, pgoff_t last,
1372 unsigned offset, unsigned to)
1374 struct afs_vnode *vnode = fc->vnode;
1375 struct afs_call *call;
1376 struct afs_net *net = afs_v2net(vnode);
1377 loff_t size, pos, i_size;
1380 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
1381 return yfs_fs_store_data(fc, mapping, first, last, offset, to);
1383 _enter(",%x,{%llx:%llu},,",
1384 key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
1386 size = (loff_t)to - (loff_t)offset;
1388 size += (loff_t)(last - first) << PAGE_SHIFT;
1389 pos = (loff_t)first << PAGE_SHIFT;
1392 i_size = i_size_read(&vnode->vfs_inode);
1393 if (pos + size > i_size)
1394 i_size = size + pos;
1396 _debug("size %llx, at %llx, i_size %llx",
1397 (unsigned long long) size, (unsigned long long) pos,
1398 (unsigned long long) i_size);
1400 if (pos >> 32 || i_size >> 32 || size >> 32 || (pos + size) >> 32)
1401 return afs_fs_store_data64(fc, mapping, first, last, offset, to,
1404 call = afs_alloc_flat_call(net, &afs_RXFSStoreData,
1410 call->key = fc->key;
1411 call->mapping = mapping;
1412 call->reply[0] = vnode;
1413 call->first = first;
1415 call->first_offset = offset;
1417 call->send_pages = true;
1418 call->expected_version = vnode->status.data_version + 1;
1420 /* marshall the parameters */
1422 *bp++ = htonl(FSSTOREDATA);
1423 *bp++ = htonl(vnode->fid.vid);
1424 *bp++ = htonl(vnode->fid.vnode);
1425 *bp++ = htonl(vnode->fid.unique);
1427 *bp++ = htonl(AFS_SET_MTIME); /* mask */
1428 *bp++ = htonl(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
1429 *bp++ = 0; /* owner */
1430 *bp++ = 0; /* group */
1431 *bp++ = 0; /* unix mode */
1432 *bp++ = 0; /* segment size */
1435 *bp++ = htonl(size);
1436 *bp++ = htonl(i_size);
1438 afs_use_fs_server(call, fc->cbi);
1439 trace_afs_make_fs_call(call, &vnode->fid);
1440 afs_make_call(&fc->ac, call, GFP_NOFS);
1441 return afs_wait_for_call_to_complete(call, &fc->ac);
1445 * deliver reply data to an FS.StoreStatus
1447 static int afs_deliver_fs_store_status(struct afs_call *call)
1449 struct afs_vnode *vnode = call->reply[0];
1455 ret = afs_transfer_reply(call);
1459 /* unmarshall the reply once we've received all of it */
1461 ret = afs_decode_status(call, &bp, &vnode->status, vnode,
1462 &call->expected_version, NULL);
1465 /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
1467 _leave(" = 0 [done]");
1472 * FS.StoreStatus operation type
1474 static const struct afs_call_type afs_RXFSStoreStatus = {
1475 .name = "FS.StoreStatus",
1476 .op = afs_FS_StoreStatus,
1477 .deliver = afs_deliver_fs_store_status,
1478 .destructor = afs_flat_call_destructor,
1481 static const struct afs_call_type afs_RXFSStoreData_as_Status = {
1482 .name = "FS.StoreData",
1483 .op = afs_FS_StoreData,
1484 .deliver = afs_deliver_fs_store_status,
1485 .destructor = afs_flat_call_destructor,
1488 static const struct afs_call_type afs_RXFSStoreData64_as_Status = {
1489 .name = "FS.StoreData64",
1490 .op = afs_FS_StoreData64,
1491 .deliver = afs_deliver_fs_store_status,
1492 .destructor = afs_flat_call_destructor,
1496 * set the attributes on a very large file, using FS.StoreData rather than
1497 * FS.StoreStatus so as to alter the file size also
1499 static int afs_fs_setattr_size64(struct afs_fs_cursor *fc, struct iattr *attr)
1501 struct afs_vnode *vnode = fc->vnode;
1502 struct afs_call *call;
1503 struct afs_net *net = afs_v2net(vnode);
1506 _enter(",%x,{%llx:%llu},,",
1507 key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
1509 ASSERT(attr->ia_valid & ATTR_SIZE);
1511 call = afs_alloc_flat_call(net, &afs_RXFSStoreData64_as_Status,
1512 (4 + 6 + 3 * 2) * 4,
1517 call->key = fc->key;
1518 call->reply[0] = vnode;
1519 call->expected_version = vnode->status.data_version + 1;
1521 /* marshall the parameters */
1523 *bp++ = htonl(FSSTOREDATA64);
1524 *bp++ = htonl(vnode->fid.vid);
1525 *bp++ = htonl(vnode->fid.vnode);
1526 *bp++ = htonl(vnode->fid.unique);
1528 xdr_encode_AFS_StoreStatus(&bp, attr);
1530 *bp++ = htonl(attr->ia_size >> 32); /* position of start of write */
1531 *bp++ = htonl((u32) attr->ia_size);
1532 *bp++ = 0; /* size of write */
1534 *bp++ = htonl(attr->ia_size >> 32); /* new file length */
1535 *bp++ = htonl((u32) attr->ia_size);
1537 afs_use_fs_server(call, fc->cbi);
1538 trace_afs_make_fs_call(call, &vnode->fid);
1539 afs_make_call(&fc->ac, call, GFP_NOFS);
1540 return afs_wait_for_call_to_complete(call, &fc->ac);
1544 * set the attributes on a file, using FS.StoreData rather than FS.StoreStatus
1545 * so as to alter the file size also
1547 static int afs_fs_setattr_size(struct afs_fs_cursor *fc, struct iattr *attr)
1549 struct afs_vnode *vnode = fc->vnode;
1550 struct afs_call *call;
1551 struct afs_net *net = afs_v2net(vnode);
1554 _enter(",%x,{%llx:%llu},,",
1555 key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
1557 ASSERT(attr->ia_valid & ATTR_SIZE);
1558 if (attr->ia_size >> 32)
1559 return afs_fs_setattr_size64(fc, attr);
1561 call = afs_alloc_flat_call(net, &afs_RXFSStoreData_as_Status,
1567 call->key = fc->key;
1568 call->reply[0] = vnode;
1569 call->expected_version = vnode->status.data_version + 1;
1571 /* marshall the parameters */
1573 *bp++ = htonl(FSSTOREDATA);
1574 *bp++ = htonl(vnode->fid.vid);
1575 *bp++ = htonl(vnode->fid.vnode);
1576 *bp++ = htonl(vnode->fid.unique);
1578 xdr_encode_AFS_StoreStatus(&bp, attr);
1580 *bp++ = htonl(attr->ia_size); /* position of start of write */
1581 *bp++ = 0; /* size of write */
1582 *bp++ = htonl(attr->ia_size); /* new file length */
1584 afs_use_fs_server(call, fc->cbi);
1585 trace_afs_make_fs_call(call, &vnode->fid);
1586 afs_make_call(&fc->ac, call, GFP_NOFS);
1587 return afs_wait_for_call_to_complete(call, &fc->ac);
1591 * set the attributes on a file, using FS.StoreData if there's a change in file
1592 * size, and FS.StoreStatus otherwise
1594 int afs_fs_setattr(struct afs_fs_cursor *fc, struct iattr *attr)
1596 struct afs_vnode *vnode = fc->vnode;
1597 struct afs_call *call;
1598 struct afs_net *net = afs_v2net(vnode);
1601 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
1602 return yfs_fs_setattr(fc, attr);
1604 if (attr->ia_valid & ATTR_SIZE)
1605 return afs_fs_setattr_size(fc, attr);
1607 _enter(",%x,{%llx:%llu},,",
1608 key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
1610 call = afs_alloc_flat_call(net, &afs_RXFSStoreStatus,
1616 call->key = fc->key;
1617 call->reply[0] = vnode;
1618 call->expected_version = vnode->status.data_version;
1620 /* marshall the parameters */
1622 *bp++ = htonl(FSSTORESTATUS);
1623 *bp++ = htonl(vnode->fid.vid);
1624 *bp++ = htonl(vnode->fid.vnode);
1625 *bp++ = htonl(vnode->fid.unique);
1627 xdr_encode_AFS_StoreStatus(&bp, attr);
1629 afs_use_fs_server(call, fc->cbi);
1630 trace_afs_make_fs_call(call, &vnode->fid);
1631 afs_make_call(&fc->ac, call, GFP_NOFS);
1632 return afs_wait_for_call_to_complete(call, &fc->ac);
1636 * deliver reply data to an FS.GetVolumeStatus
1638 static int afs_deliver_fs_get_volume_status(struct afs_call *call)
1645 _enter("{%u}", call->unmarshall);
1647 switch (call->unmarshall) {
1650 afs_extract_to_buf(call, 12 * 4);
1652 /* extract the returned status record */
1654 _debug("extract status");
1655 ret = afs_extract_data(call, true);
1660 xdr_decode_AFSFetchVolumeStatus(&bp, call->reply[1]);
1662 afs_extract_to_tmp(call);
1664 /* extract the volume name length */
1666 ret = afs_extract_data(call, true);
1670 call->count = ntohl(call->tmp);
1671 _debug("volname length: %u", call->count);
1672 if (call->count >= AFSNAMEMAX)
1673 return afs_protocol_error(call, -EBADMSG,
1674 afs_eproto_volname_len);
1675 size = (call->count + 3) & ~3; /* It's padded */
1676 afs_extract_begin(call, call->reply[2], size);
1679 /* extract the volume name */
1681 _debug("extract volname");
1682 ret = afs_extract_data(call, true);
1688 _debug("volname '%s'", p);
1689 afs_extract_to_tmp(call);
1692 /* extract the offline message length */
1694 ret = afs_extract_data(call, true);
1698 call->count = ntohl(call->tmp);
1699 _debug("offline msg length: %u", call->count);
1700 if (call->count >= AFSNAMEMAX)
1701 return afs_protocol_error(call, -EBADMSG,
1702 afs_eproto_offline_msg_len);
1703 size = (call->count + 3) & ~3; /* It's padded */
1704 afs_extract_begin(call, call->reply[2], size);
1707 /* extract the offline message */
1709 _debug("extract offline");
1710 ret = afs_extract_data(call, true);
1716 _debug("offline '%s'", p);
1718 afs_extract_to_tmp(call);
1721 /* extract the message of the day length */
1723 ret = afs_extract_data(call, true);
1727 call->count = ntohl(call->tmp);
1728 _debug("motd length: %u", call->count);
1729 if (call->count >= AFSNAMEMAX)
1730 return afs_protocol_error(call, -EBADMSG,
1731 afs_eproto_motd_len);
1732 size = (call->count + 3) & ~3; /* It's padded */
1733 afs_extract_begin(call, call->reply[2], size);
1736 /* extract the message of the day */
1738 _debug("extract motd");
1739 ret = afs_extract_data(call, false);
1745 _debug("motd '%s'", p);
1753 _leave(" = 0 [done]");
1758 * destroy an FS.GetVolumeStatus call
1760 static void afs_get_volume_status_call_destructor(struct afs_call *call)
1762 kfree(call->reply[2]);
1763 call->reply[2] = NULL;
1764 afs_flat_call_destructor(call);
1768 * FS.GetVolumeStatus operation type
1770 static const struct afs_call_type afs_RXFSGetVolumeStatus = {
1771 .name = "FS.GetVolumeStatus",
1772 .op = afs_FS_GetVolumeStatus,
1773 .deliver = afs_deliver_fs_get_volume_status,
1774 .destructor = afs_get_volume_status_call_destructor,
1778 * fetch the status of a volume
1780 int afs_fs_get_volume_status(struct afs_fs_cursor *fc,
1781 struct afs_volume_status *vs)
1783 struct afs_vnode *vnode = fc->vnode;
1784 struct afs_call *call;
1785 struct afs_net *net = afs_v2net(vnode);
1789 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
1790 return yfs_fs_get_volume_status(fc, vs);
1794 tmpbuf = kmalloc(AFSOPAQUEMAX, GFP_KERNEL);
1798 call = afs_alloc_flat_call(net, &afs_RXFSGetVolumeStatus, 2 * 4, 12 * 4);
1804 call->key = fc->key;
1805 call->reply[0] = vnode;
1806 call->reply[1] = vs;
1807 call->reply[2] = tmpbuf;
1809 /* marshall the parameters */
1811 bp[0] = htonl(FSGETVOLUMESTATUS);
1812 bp[1] = htonl(vnode->fid.vid);
1814 afs_use_fs_server(call, fc->cbi);
1815 trace_afs_make_fs_call(call, &vnode->fid);
1816 afs_make_call(&fc->ac, call, GFP_NOFS);
1817 return afs_wait_for_call_to_complete(call, &fc->ac);
1821 * deliver reply data to an FS.SetLock, FS.ExtendLock or FS.ReleaseLock
1823 static int afs_deliver_fs_xxxx_lock(struct afs_call *call)
1828 _enter("{%u}", call->unmarshall);
1830 ret = afs_transfer_reply(call);
1834 /* unmarshall the reply once we've received all of it */
1836 /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
1838 _leave(" = 0 [done]");
1843 * FS.SetLock operation type
1845 static const struct afs_call_type afs_RXFSSetLock = {
1846 .name = "FS.SetLock",
1847 .op = afs_FS_SetLock,
1848 .deliver = afs_deliver_fs_xxxx_lock,
1849 .done = afs_lock_op_done,
1850 .destructor = afs_flat_call_destructor,
1854 * FS.ExtendLock operation type
1856 static const struct afs_call_type afs_RXFSExtendLock = {
1857 .name = "FS.ExtendLock",
1858 .op = afs_FS_ExtendLock,
1859 .deliver = afs_deliver_fs_xxxx_lock,
1860 .done = afs_lock_op_done,
1861 .destructor = afs_flat_call_destructor,
1865 * FS.ReleaseLock operation type
1867 static const struct afs_call_type afs_RXFSReleaseLock = {
1868 .name = "FS.ReleaseLock",
1869 .op = afs_FS_ReleaseLock,
1870 .deliver = afs_deliver_fs_xxxx_lock,
1871 .destructor = afs_flat_call_destructor,
1875 * Set a lock on a file
1877 int afs_fs_set_lock(struct afs_fs_cursor *fc, afs_lock_type_t type)
1879 struct afs_vnode *vnode = fc->vnode;
1880 struct afs_call *call;
1881 struct afs_net *net = afs_v2net(vnode);
1884 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
1885 return yfs_fs_set_lock(fc, type);
1889 call = afs_alloc_flat_call(net, &afs_RXFSSetLock, 5 * 4, 6 * 4);
1893 call->key = fc->key;
1894 call->reply[0] = vnode;
1895 call->want_reply_time = true;
1897 /* marshall the parameters */
1899 *bp++ = htonl(FSSETLOCK);
1900 *bp++ = htonl(vnode->fid.vid);
1901 *bp++ = htonl(vnode->fid.vnode);
1902 *bp++ = htonl(vnode->fid.unique);
1903 *bp++ = htonl(type);
1905 afs_use_fs_server(call, fc->cbi);
1906 trace_afs_make_fs_calli(call, &vnode->fid, type);
1907 afs_make_call(&fc->ac, call, GFP_NOFS);
1908 return afs_wait_for_call_to_complete(call, &fc->ac);
1912 * extend a lock on a file
1914 int afs_fs_extend_lock(struct afs_fs_cursor *fc)
1916 struct afs_vnode *vnode = fc->vnode;
1917 struct afs_call *call;
1918 struct afs_net *net = afs_v2net(vnode);
1921 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
1922 return yfs_fs_extend_lock(fc);
1926 call = afs_alloc_flat_call(net, &afs_RXFSExtendLock, 4 * 4, 6 * 4);
1930 call->key = fc->key;
1931 call->reply[0] = vnode;
1932 call->want_reply_time = true;
1934 /* marshall the parameters */
1936 *bp++ = htonl(FSEXTENDLOCK);
1937 *bp++ = htonl(vnode->fid.vid);
1938 *bp++ = htonl(vnode->fid.vnode);
1939 *bp++ = htonl(vnode->fid.unique);
1941 afs_use_fs_server(call, fc->cbi);
1942 trace_afs_make_fs_call(call, &vnode->fid);
1943 afs_make_call(&fc->ac, call, GFP_NOFS);
1944 return afs_wait_for_call_to_complete(call, &fc->ac);
1948 * release a lock on a file
1950 int afs_fs_release_lock(struct afs_fs_cursor *fc)
1952 struct afs_vnode *vnode = fc->vnode;
1953 struct afs_call *call;
1954 struct afs_net *net = afs_v2net(vnode);
1957 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
1958 return yfs_fs_release_lock(fc);
1962 call = afs_alloc_flat_call(net, &afs_RXFSReleaseLock, 4 * 4, 6 * 4);
1966 call->key = fc->key;
1967 call->reply[0] = vnode;
1969 /* marshall the parameters */
1971 *bp++ = htonl(FSRELEASELOCK);
1972 *bp++ = htonl(vnode->fid.vid);
1973 *bp++ = htonl(vnode->fid.vnode);
1974 *bp++ = htonl(vnode->fid.unique);
1976 afs_use_fs_server(call, fc->cbi);
1977 trace_afs_make_fs_call(call, &vnode->fid);
1978 afs_make_call(&fc->ac, call, GFP_NOFS);
1979 return afs_wait_for_call_to_complete(call, &fc->ac);
1983 * Deliver reply data to an FS.GiveUpAllCallBacks operation.
1985 static int afs_deliver_fs_give_up_all_callbacks(struct afs_call *call)
1987 return afs_transfer_reply(call);
1991 * FS.GiveUpAllCallBacks operation type
1993 static const struct afs_call_type afs_RXFSGiveUpAllCallBacks = {
1994 .name = "FS.GiveUpAllCallBacks",
1995 .op = afs_FS_GiveUpAllCallBacks,
1996 .deliver = afs_deliver_fs_give_up_all_callbacks,
1997 .destructor = afs_flat_call_destructor,
2001 * Flush all the callbacks we have on a server.
2003 int afs_fs_give_up_all_callbacks(struct afs_net *net,
2004 struct afs_server *server,
2005 struct afs_addr_cursor *ac,
2008 struct afs_call *call;
2013 call = afs_alloc_flat_call(net, &afs_RXFSGiveUpAllCallBacks, 1 * 4, 0);
2019 /* marshall the parameters */
2021 *bp++ = htonl(FSGIVEUPALLCALLBACKS);
2023 /* Can't take a ref on server */
2024 afs_make_call(ac, call, GFP_NOFS);
2025 return afs_wait_for_call_to_complete(call, ac);
2029 * Deliver reply data to an FS.GetCapabilities operation.
2031 static int afs_deliver_fs_get_capabilities(struct afs_call *call)
2036 _enter("{%u,%zu}", call->unmarshall, iov_iter_count(&call->iter));
2038 switch (call->unmarshall) {
2040 afs_extract_to_tmp(call);
2043 /* Extract the capabilities word count */
2045 ret = afs_extract_data(call, true);
2049 count = ntohl(call->tmp);
2051 call->count = count;
2052 call->count2 = count;
2053 iov_iter_discard(&call->iter, READ, count * sizeof(__be32));
2056 /* Extract capabilities words */
2058 ret = afs_extract_data(call, false);
2062 /* TODO: Examine capabilities */
2068 _leave(" = 0 [done]");
2072 static void afs_destroy_fs_get_capabilities(struct afs_call *call)
2074 struct afs_server *server = call->reply[0];
2076 afs_put_server(call->net, server);
2077 afs_flat_call_destructor(call);
2081 * FS.GetCapabilities operation type
2083 static const struct afs_call_type afs_RXFSGetCapabilities = {
2084 .name = "FS.GetCapabilities",
2085 .op = afs_FS_GetCapabilities,
2086 .deliver = afs_deliver_fs_get_capabilities,
2087 .done = afs_fileserver_probe_result,
2088 .destructor = afs_destroy_fs_get_capabilities,
2092 * Probe a fileserver for the capabilities that it supports. This can
2093 * return up to 196 words.
2095 struct afs_call *afs_fs_get_capabilities(struct afs_net *net,
2096 struct afs_server *server,
2097 struct afs_addr_cursor *ac,
2099 unsigned int server_index)
2101 struct afs_call *call;
2106 call = afs_alloc_flat_call(net, &afs_RXFSGetCapabilities, 1 * 4, 16 * 4);
2108 return ERR_PTR(-ENOMEM);
2111 call->reply[0] = afs_get_server(server);
2112 call->reply[1] = (void *)(long)server_index;
2113 call->upgrade = true;
2114 call->want_reply_time = true;
2117 /* marshall the parameters */
2119 *bp++ = htonl(FSGETCAPABILITIES);
2121 /* Can't take a ref on server */
2122 trace_afs_make_fs_call(call, NULL);
2123 afs_make_call(ac, call, GFP_NOFS);
2128 * Deliver reply data to an FS.FetchStatus with no vnode.
2130 static int afs_deliver_fs_fetch_status(struct afs_call *call)
2132 struct afs_file_status *status = call->reply[1];
2133 struct afs_callback *callback = call->reply[2];
2134 struct afs_volsync *volsync = call->reply[3];
2135 struct afs_fid *fid = call->reply[0];
2139 ret = afs_transfer_reply(call);
2143 _enter("{%llx:%llu}", fid->vid, fid->vnode);
2145 /* unmarshall the reply once we've received all of it */
2147 ret = afs_decode_status(call, &bp, status, NULL,
2148 &call->expected_version, NULL);
2151 xdr_decode_AFSCallBack_raw(call, &bp, callback);
2152 xdr_decode_AFSVolSync(&bp, volsync);
2154 _leave(" = 0 [done]");
2159 * FS.FetchStatus operation type
2161 static const struct afs_call_type afs_RXFSFetchStatus = {
2162 .name = "FS.FetchStatus",
2163 .op = afs_FS_FetchStatus,
2164 .deliver = afs_deliver_fs_fetch_status,
2165 .destructor = afs_flat_call_destructor,
2169 * Fetch the status information for a fid without needing a vnode handle.
2171 int afs_fs_fetch_status(struct afs_fs_cursor *fc,
2172 struct afs_net *net,
2173 struct afs_fid *fid,
2174 struct afs_file_status *status,
2175 struct afs_callback *callback,
2176 struct afs_volsync *volsync)
2178 struct afs_call *call;
2181 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
2182 return yfs_fs_fetch_status(fc, net, fid, status, callback, volsync);
2184 _enter(",%x,{%llx:%llu},,",
2185 key_serial(fc->key), fid->vid, fid->vnode);
2187 call = afs_alloc_flat_call(net, &afs_RXFSFetchStatus, 16, (21 + 3 + 6) * 4);
2189 fc->ac.error = -ENOMEM;
2193 call->key = fc->key;
2194 call->reply[0] = fid;
2195 call->reply[1] = status;
2196 call->reply[2] = callback;
2197 call->reply[3] = volsync;
2198 call->expected_version = 1; /* vnode->status.data_version */
2199 call->want_reply_time = true;
2201 /* marshall the parameters */
2203 bp[0] = htonl(FSFETCHSTATUS);
2204 bp[1] = htonl(fid->vid);
2205 bp[2] = htonl(fid->vnode);
2206 bp[3] = htonl(fid->unique);
2208 call->cb_break = fc->cb_break;
2209 afs_use_fs_server(call, fc->cbi);
2210 trace_afs_make_fs_call(call, fid);
2211 afs_make_call(&fc->ac, call, GFP_NOFS);
2212 return afs_wait_for_call_to_complete(call, &fc->ac);
2216 * Deliver reply data to an FS.InlineBulkStatus call
2218 static int afs_deliver_fs_inline_bulk_status(struct afs_call *call)
2220 struct afs_file_status *statuses;
2221 struct afs_callback *callbacks;
2222 struct afs_vnode *vnode = call->reply[0];
2227 _enter("{%u}", call->unmarshall);
2229 switch (call->unmarshall) {
2231 afs_extract_to_tmp(call);
2234 /* Extract the file status count and array in two steps */
2236 _debug("extract status count");
2237 ret = afs_extract_data(call, true);
2241 tmp = ntohl(call->tmp);
2242 _debug("status count: %u/%u", tmp, call->count2);
2243 if (tmp != call->count2)
2244 return afs_protocol_error(call, -EBADMSG,
2245 afs_eproto_ibulkst_count);
2250 afs_extract_to_buf(call, 21 * sizeof(__be32));
2253 _debug("extract status array %u", call->count);
2254 ret = afs_extract_data(call, true);
2259 statuses = call->reply[1];
2260 ret = afs_decode_status(call, &bp, &statuses[call->count],
2261 call->count == 0 ? vnode : NULL,
2267 if (call->count < call->count2)
2272 afs_extract_to_tmp(call);
2274 /* Extract the callback count and array in two steps */
2276 _debug("extract CB count");
2277 ret = afs_extract_data(call, true);
2281 tmp = ntohl(call->tmp);
2282 _debug("CB count: %u", tmp);
2283 if (tmp != call->count2)
2284 return afs_protocol_error(call, -EBADMSG,
2285 afs_eproto_ibulkst_cb_count);
2289 afs_extract_to_buf(call, 3 * sizeof(__be32));
2292 _debug("extract CB array");
2293 ret = afs_extract_data(call, true);
2297 _debug("unmarshall CB array");
2299 callbacks = call->reply[2];
2300 callbacks[call->count].version = ntohl(bp[0]);
2301 callbacks[call->count].expires_at = xdr_decode_expiry(call, ntohl(bp[1]));
2302 callbacks[call->count].type = ntohl(bp[2]);
2303 statuses = call->reply[1];
2304 if (call->count == 0 && vnode && statuses[0].abort_code == 0)
2305 xdr_decode_AFSCallBack(call, vnode, &bp);
2307 if (call->count < call->count2)
2310 afs_extract_to_buf(call, 6 * sizeof(__be32));
2314 ret = afs_extract_data(call, false);
2319 xdr_decode_AFSVolSync(&bp, call->reply[3]);
2327 _leave(" = 0 [done]");
2332 * FS.InlineBulkStatus operation type
2334 static const struct afs_call_type afs_RXFSInlineBulkStatus = {
2335 .name = "FS.InlineBulkStatus",
2336 .op = afs_FS_InlineBulkStatus,
2337 .deliver = afs_deliver_fs_inline_bulk_status,
2338 .destructor = afs_flat_call_destructor,
2342 * Fetch the status information for up to 50 files
2344 int afs_fs_inline_bulk_status(struct afs_fs_cursor *fc,
2345 struct afs_net *net,
2346 struct afs_fid *fids,
2347 struct afs_file_status *statuses,
2348 struct afs_callback *callbacks,
2349 unsigned int nr_fids,
2350 struct afs_volsync *volsync)
2352 struct afs_call *call;
2356 if (test_bit(AFS_SERVER_FL_IS_YFS, &fc->cbi->server->flags))
2357 return yfs_fs_inline_bulk_status(fc, net, fids, statuses, callbacks,
2360 _enter(",%x,{%llx:%llu},%u",
2361 key_serial(fc->key), fids[0].vid, fids[1].vnode, nr_fids);
2363 call = afs_alloc_flat_call(net, &afs_RXFSInlineBulkStatus,
2364 (2 + nr_fids * 3) * 4,
2367 fc->ac.error = -ENOMEM;
2371 call->key = fc->key;
2372 call->reply[0] = NULL; /* vnode for fid[0] */
2373 call->reply[1] = statuses;
2374 call->reply[2] = callbacks;
2375 call->reply[3] = volsync;
2376 call->count2 = nr_fids;
2377 call->want_reply_time = true;
2379 /* marshall the parameters */
2381 *bp++ = htonl(FSINLINEBULKSTATUS);
2382 *bp++ = htonl(nr_fids);
2383 for (i = 0; i < nr_fids; i++) {
2384 *bp++ = htonl(fids[i].vid);
2385 *bp++ = htonl(fids[i].vnode);
2386 *bp++ = htonl(fids[i].unique);
2389 call->cb_break = fc->cb_break;
2390 afs_use_fs_server(call, fc->cbi);
2391 trace_afs_make_fs_call(call, &fids[0]);
2392 afs_make_call(&fc->ac, call, GFP_NOFS);
2393 return afs_wait_for_call_to_complete(call, &fc->ac);
2397 * deliver reply data to an FS.FetchACL
2399 static int afs_deliver_fs_fetch_acl(struct afs_call *call)
2401 struct afs_vnode *vnode = call->reply[1];
2402 struct afs_acl *acl;
2407 _enter("{%u}", call->unmarshall);
2409 switch (call->unmarshall) {
2411 afs_extract_to_tmp(call);
2414 /* extract the returned data length */
2416 ret = afs_extract_data(call, true);
2420 size = call->count2 = ntohl(call->tmp);
2421 size = round_up(size, 4);
2423 acl = kmalloc(struct_size(acl, data, size), GFP_KERNEL);
2426 call->reply[0] = acl;
2427 acl->size = call->count2;
2428 afs_extract_begin(call, acl->data, size);
2431 /* extract the returned data */
2433 ret = afs_extract_data(call, true);
2437 afs_extract_to_buf(call, (21 + 6) * 4);
2440 /* extract the metadata */
2442 ret = afs_extract_data(call, false);
2447 ret = afs_decode_status(call, &bp, &vnode->status, vnode,
2448 &vnode->status.data_version, NULL);
2451 xdr_decode_AFSVolSync(&bp, call->reply[2]);
2459 _leave(" = 0 [done]");
2463 static void afs_destroy_fs_fetch_acl(struct afs_call *call)
2465 kfree(call->reply[0]);
2466 afs_flat_call_destructor(call);
2470 * FS.FetchACL operation type
2472 static const struct afs_call_type afs_RXFSFetchACL = {
2473 .name = "FS.FetchACL",
2474 .op = afs_FS_FetchACL,
2475 .deliver = afs_deliver_fs_fetch_acl,
2476 .destructor = afs_destroy_fs_fetch_acl,
2480 * Fetch the ACL for a file.
2482 struct afs_acl *afs_fs_fetch_acl(struct afs_fs_cursor *fc)
2484 struct afs_vnode *vnode = fc->vnode;
2485 struct afs_call *call;
2486 struct afs_net *net = afs_v2net(vnode);
2489 _enter(",%x,{%llx:%llu},,",
2490 key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
2492 call = afs_alloc_flat_call(net, &afs_RXFSFetchACL, 16, (21 + 6) * 4);
2494 fc->ac.error = -ENOMEM;
2495 return ERR_PTR(-ENOMEM);
2498 call->key = fc->key;
2499 call->reply[0] = NULL;
2500 call->reply[1] = vnode;
2501 call->reply[2] = NULL; /* volsync */
2502 call->ret_reply0 = true;
2504 /* marshall the parameters */
2506 bp[0] = htonl(FSFETCHACL);
2507 bp[1] = htonl(vnode->fid.vid);
2508 bp[2] = htonl(vnode->fid.vnode);
2509 bp[3] = htonl(vnode->fid.unique);
2511 call->cb_break = fc->cb_break;
2512 afs_use_fs_server(call, fc->cbi);
2513 trace_afs_make_fs_call(call, &vnode->fid);
2514 afs_make_call(&fc->ac, call, GFP_KERNEL);
2515 return (struct afs_acl *)afs_wait_for_call_to_complete(call, &fc->ac);
2519 * FS.StoreACL operation type
2521 static const struct afs_call_type afs_RXFSStoreACL = {
2522 .name = "FS.StoreACL",
2523 .op = afs_FS_StoreACL,
2524 .deliver = afs_deliver_fs_status_and_vol,
2525 .destructor = afs_flat_call_destructor,
2529 * Fetch the ACL for a file.
2531 int afs_fs_store_acl(struct afs_fs_cursor *fc, const struct afs_acl *acl)
2533 struct afs_vnode *vnode = fc->vnode;
2534 struct afs_call *call;
2535 struct afs_net *net = afs_v2net(vnode);
2539 _enter(",%x,{%llx:%llu},,",
2540 key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
2542 size = round_up(acl->size, 4);
2543 call = afs_alloc_flat_call(net, &afs_RXFSStoreACL,
2544 5 * 4 + size, (21 + 6) * 4);
2546 fc->ac.error = -ENOMEM;
2550 call->key = fc->key;
2551 call->reply[0] = vnode;
2552 call->reply[2] = NULL; /* volsync */
2554 /* marshall the parameters */
2556 bp[0] = htonl(FSSTOREACL);
2557 bp[1] = htonl(vnode->fid.vid);
2558 bp[2] = htonl(vnode->fid.vnode);
2559 bp[3] = htonl(vnode->fid.unique);
2560 bp[4] = htonl(acl->size);
2561 memcpy(&bp[5], acl->data, acl->size);
2562 if (acl->size != size)
2563 memset((void *)&bp[5] + acl->size, 0, size - acl->size);
2565 trace_afs_make_fs_call(call, &vnode->fid);
2566 afs_make_call(&fc->ac, call, GFP_KERNEL);
2567 return afs_wait_for_call_to_complete(call, &fc->ac);