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Diffstat (limited to 'fs/afs/yfsclient.c')
-rw-r--r--fs/afs/yfsclient.c327
1 files changed, 303 insertions, 24 deletions
diff --git a/fs/afs/yfsclient.c b/fs/afs/yfsclient.c
index 11571cca86c1..febf13a49f0b 100644
--- a/fs/afs/yfsclient.c
+++ b/fs/afs/yfsclient.c
@@ -245,12 +245,15 @@ static void xdr_decode_YFSVolSync(const __be32 **_bp,
struct afs_volsync *volsync)
{
struct yfs_xdr_YFSVolSync *x = (void *)*_bp;
- u64 creation;
+ u64 creation, update;
if (volsync) {
creation = xdr_to_u64(x->vol_creation_date);
do_div(creation, 10 * 1000 * 1000);
volsync->creation = creation;
+ update = xdr_to_u64(x->vol_update_date);
+ do_div(update, 10 * 1000 * 1000);
+ volsync->update = update;
}
*_bp += xdr_size(x);
@@ -349,18 +352,19 @@ static int yfs_deliver_status_and_volsync(struct afs_call *call)
static int yfs_deliver_fs_fetch_data64(struct afs_call *call)
{
struct afs_operation *op = call->op;
+ struct netfs_io_subrequest *subreq = op->fetch.subreq;
struct afs_vnode_param *vp = &op->file[0];
- struct afs_read *req = op->fetch.req;
const __be32 *bp;
+ size_t count_before;
int ret;
_enter("{%u,%zu, %zu/%llu}",
call->unmarshall, call->iov_len, iov_iter_count(call->iter),
- req->actual_len);
+ call->remaining);
switch (call->unmarshall) {
case 0:
- req->actual_len = 0;
+ call->remaining = 0;
afs_extract_to_tmp64(call);
call->unmarshall++;
fallthrough;
@@ -375,38 +379,39 @@ static int yfs_deliver_fs_fetch_data64(struct afs_call *call)
if (ret < 0)
return ret;
- req->actual_len = be64_to_cpu(call->tmp64);
- _debug("DATA length: %llu", req->actual_len);
+ call->remaining = be64_to_cpu(call->tmp64);
+ _debug("DATA length: %llu", call->remaining);
- if (req->actual_len == 0)
+ if (call->remaining == 0)
goto no_more_data;
- call->iter = req->iter;
- call->iov_len = min(req->actual_len, req->len);
+ call->iter = &subreq->io_iter;
+ call->iov_len = min(call->remaining, subreq->len - subreq->transferred);
call->unmarshall++;
fallthrough;
/* extract the returned data */
case 2:
- _debug("extract data %zu/%llu",
- iov_iter_count(call->iter), req->actual_len);
+ count_before = call->iov_len;
+ _debug("extract data %zu/%llu", count_before, call->remaining);
ret = afs_extract_data(call, true);
+ subreq->transferred += count_before - call->iov_len;
if (ret < 0)
return ret;
call->iter = &call->def_iter;
- if (req->actual_len <= req->len)
+ if (call->remaining)
goto no_more_data;
/* Discard any excess data the server gave us */
- afs_extract_discard(call, req->actual_len - req->len);
+ afs_extract_discard(call, call->remaining);
call->unmarshall = 3;
fallthrough;
case 3:
_debug("extract discard %zu/%llu",
- iov_iter_count(call->iter), req->actual_len - req->len);
+ iov_iter_count(call->iter), call->remaining);
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -431,8 +436,8 @@ static int yfs_deliver_fs_fetch_data64(struct afs_call *call)
xdr_decode_YFSCallBack(&bp, call, &vp->scb);
xdr_decode_YFSVolSync(&bp, &op->volsync);
- req->data_version = vp->scb.status.data_version;
- req->file_size = vp->scb.status.size;
+ if (subreq->start + subreq->transferred >= vp->scb.status.size)
+ __set_bit(NETFS_SREQ_HIT_EOF, &subreq->flags);
call->unmarshall++;
fallthrough;
@@ -451,7 +456,9 @@ static int yfs_deliver_fs_fetch_data64(struct afs_call *call)
static const struct afs_call_type yfs_RXYFSFetchData64 = {
.name = "YFS.FetchData64",
.op = yfs_FS_FetchData64,
+ .async_rx = afs_fetch_data_async_rx,
.deliver = yfs_deliver_fs_fetch_data64,
+ .immediate_cancel = afs_fetch_data_immediate_cancel,
.destructor = afs_flat_call_destructor,
};
@@ -460,14 +467,15 @@ static const struct afs_call_type yfs_RXYFSFetchData64 = {
*/
void yfs_fs_fetch_data(struct afs_operation *op)
{
+ struct netfs_io_subrequest *subreq = op->fetch.subreq;
struct afs_vnode_param *vp = &op->file[0];
- struct afs_read *req = op->fetch.req;
struct afs_call *call;
__be32 *bp;
- _enter(",%x,{%llx:%llu},%llx,%llx",
+ _enter(",%x,{%llx:%llu},%llx,%zx",
key_serial(op->key), vp->fid.vid, vp->fid.vnode,
- req->pos, req->len);
+ subreq->start + subreq->transferred,
+ subreq->len - subreq->transferred);
call = afs_alloc_flat_call(op->net, &yfs_RXYFSFetchData64,
sizeof(__be32) * 2 +
@@ -479,17 +487,19 @@ void yfs_fs_fetch_data(struct afs_operation *op)
if (!call)
return afs_op_nomem(op);
- req->call_debug_id = call->debug_id;
+ if (op->flags & AFS_OPERATION_ASYNC)
+ call->async = true;
/* marshall the parameters */
bp = call->request;
bp = xdr_encode_u32(bp, YFSFETCHDATA64);
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vp->fid);
- bp = xdr_encode_u64(bp, req->pos);
- bp = xdr_encode_u64(bp, req->len);
+ bp = xdr_encode_u64(bp, subreq->start + subreq->transferred);
+ bp = xdr_encode_u64(bp, subreq->len - subreq->transferred);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -572,6 +582,7 @@ void yfs_fs_create_file(struct afs_operation *op)
bp = xdr_encode_u32(bp, yfs_LockNone); /* ViceLockType */
yfs_check_req(call, bp);
+ call->fid = dvp->fid;
trace_afs_make_fs_call1(call, &dvp->fid, name);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -620,6 +631,7 @@ void yfs_fs_make_dir(struct afs_operation *op)
bp = xdr_encode_YFSStoreStatus(bp, &op->create.mode, &op->mtime);
yfs_check_req(call, bp);
+ call->fid = dvp->fid;
trace_afs_make_fs_call1(call, &dvp->fid, name);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -655,8 +667,9 @@ static int yfs_deliver_fs_remove_file2(struct afs_call *call)
static void yfs_done_fs_remove_file2(struct afs_call *call)
{
if (call->error == -ECONNABORTED &&
- call->abort_code == RX_INVALID_OPERATION) {
- set_bit(AFS_SERVER_FL_NO_RM2, &call->server->flags);
+ (call->abort_code == RX_INVALID_OPERATION ||
+ call->abort_code == RXGEN_OPCODE)) {
+ set_bit(AFS_SERVER_FL_NO_RM2, &call->op->server->flags);
call->op->flags |= AFS_OPERATION_DOWNGRADE;
}
}
@@ -704,6 +717,7 @@ void yfs_fs_remove_file2(struct afs_operation *op)
bp = xdr_encode_name(bp, name);
yfs_check_req(call, bp);
+ call->fid = dvp->fid;
trace_afs_make_fs_call1(call, &dvp->fid, name);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -773,6 +787,7 @@ void yfs_fs_remove_file(struct afs_operation *op)
bp = xdr_encode_name(bp, name);
yfs_check_req(call, bp);
+ call->fid = dvp->fid;
trace_afs_make_fs_call1(call, &dvp->fid, name);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -814,6 +829,7 @@ void yfs_fs_remove_dir(struct afs_operation *op)
bp = xdr_encode_name(bp, name);
yfs_check_req(call, bp);
+ call->fid = dvp->fid;
trace_afs_make_fs_call1(call, &dvp->fid, name);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -887,6 +903,7 @@ void yfs_fs_link(struct afs_operation *op)
bp = xdr_encode_YFSFid(bp, &vp->fid);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call1(call, &vp->fid, name);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -968,6 +985,7 @@ void yfs_fs_symlink(struct afs_operation *op)
bp = xdr_encode_YFSStoreStatus(bp, &mode, &op->mtime);
yfs_check_req(call, bp);
+ call->fid = dvp->fid;
trace_afs_make_fs_call1(call, &dvp->fid, name);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1024,6 +1042,9 @@ void yfs_fs_rename(struct afs_operation *op)
_enter("");
+ if (!test_bit(AFS_SERVER_FL_NO_RENAME2, &op->server->flags))
+ return yfs_fs_rename_replace(op);
+
call = afs_alloc_flat_call(op->net, &yfs_RXYFSRename,
sizeof(__be32) +
sizeof(struct yfs_xdr_RPCFlags) +
@@ -1047,6 +1068,253 @@ void yfs_fs_rename(struct afs_operation *op)
bp = xdr_encode_name(bp, new_name);
yfs_check_req(call, bp);
+ call->fid = orig_dvp->fid;
+ trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name);
+ afs_make_op_call(op, call, GFP_NOFS);
+}
+
+/*
+ * Deliver reply data to a YFS.Rename_NoReplace operation. This does not
+ * return the status of a displaced target inode as there cannot be one.
+ */
+static int yfs_deliver_fs_rename_1(struct afs_call *call)
+{
+ struct afs_operation *op = call->op;
+ struct afs_vnode_param *orig_dvp = &op->file[0];
+ struct afs_vnode_param *new_dvp = &op->file[1];
+ struct afs_vnode_param *old_vp = &op->more_files[0];
+ const __be32 *bp;
+ int ret;
+
+ _enter("{%u}", call->unmarshall);
+
+ ret = afs_transfer_reply(call);
+ if (ret < 0)
+ return ret;
+
+ bp = call->buffer;
+ /* If the two dirs are the same, we have two copies of the same status
+ * report, so we just decode it twice.
+ */
+ xdr_decode_YFSFetchStatus(&bp, call, &orig_dvp->scb);
+ xdr_decode_YFSFid(&bp, &old_vp->fid);
+ xdr_decode_YFSFetchStatus(&bp, call, &old_vp->scb);
+ xdr_decode_YFSFetchStatus(&bp, call, &new_dvp->scb);
+ xdr_decode_YFSVolSync(&bp, &op->volsync);
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * Deliver reply data to a YFS.Rename_Replace or a YFS.Rename_Exchange
+ * operation. These return the status of the displaced target inode if there
+ * was one.
+ */
+static int yfs_deliver_fs_rename_2(struct afs_call *call)
+{
+ struct afs_operation *op = call->op;
+ struct afs_vnode_param *orig_dvp = &op->file[0];
+ struct afs_vnode_param *new_dvp = &op->file[1];
+ struct afs_vnode_param *old_vp = &op->more_files[0];
+ struct afs_vnode_param *new_vp = &op->more_files[1];
+ const __be32 *bp;
+ int ret;
+
+ _enter("{%u}", call->unmarshall);
+
+ ret = afs_transfer_reply(call);
+ if (ret < 0)
+ return ret;
+
+ bp = call->buffer;
+ /* If the two dirs are the same, we have two copies of the same status
+ * report, so we just decode it twice.
+ */
+ xdr_decode_YFSFetchStatus(&bp, call, &orig_dvp->scb);
+ xdr_decode_YFSFid(&bp, &old_vp->fid);
+ xdr_decode_YFSFetchStatus(&bp, call, &old_vp->scb);
+ xdr_decode_YFSFetchStatus(&bp, call, &new_dvp->scb);
+ xdr_decode_YFSFid(&bp, &new_vp->fid);
+ xdr_decode_YFSFetchStatus(&bp, call, &new_vp->scb);
+ xdr_decode_YFSVolSync(&bp, &op->volsync);
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+static void yfs_done_fs_rename_replace(struct afs_call *call)
+{
+ if (call->error == -ECONNABORTED &&
+ (call->abort_code == RX_INVALID_OPERATION ||
+ call->abort_code == RXGEN_OPCODE)) {
+ set_bit(AFS_SERVER_FL_NO_RENAME2, &call->op->server->flags);
+ call->op->flags |= AFS_OPERATION_DOWNGRADE;
+ }
+}
+
+/*
+ * YFS.Rename_Replace operation type
+ */
+static const struct afs_call_type yfs_RXYFSRename_Replace = {
+ .name = "FS.Rename_Replace",
+ .op = yfs_FS_Rename_Replace,
+ .deliver = yfs_deliver_fs_rename_2,
+ .done = yfs_done_fs_rename_replace,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * YFS.Rename_NoReplace operation type
+ */
+static const struct afs_call_type yfs_RXYFSRename_NoReplace = {
+ .name = "FS.Rename_NoReplace",
+ .op = yfs_FS_Rename_NoReplace,
+ .deliver = yfs_deliver_fs_rename_1,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * YFS.Rename_Exchange operation type
+ */
+static const struct afs_call_type yfs_RXYFSRename_Exchange = {
+ .name = "FS.Rename_Exchange",
+ .op = yfs_FS_Rename_Exchange,
+ .deliver = yfs_deliver_fs_rename_2,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * Rename a file or directory, replacing the target if it exists. The status
+ * of a displaced target is returned.
+ */
+void yfs_fs_rename_replace(struct afs_operation *op)
+{
+ struct afs_vnode_param *orig_dvp = &op->file[0];
+ struct afs_vnode_param *new_dvp = &op->file[1];
+ const struct qstr *orig_name = &op->dentry->d_name;
+ const struct qstr *new_name = &op->dentry_2->d_name;
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter("");
+
+ call = afs_alloc_flat_call(op->net, &yfs_RXYFSRename_Replace,
+ sizeof(__be32) +
+ sizeof(struct yfs_xdr_RPCFlags) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ xdr_strlen(orig_name->len) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ xdr_strlen(new_name->len),
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSVolSync));
+ if (!call)
+ return afs_op_nomem(op);
+
+ /* Marshall the parameters. */
+ bp = call->request;
+ bp = xdr_encode_u32(bp, YFSRENAME_REPLACE);
+ bp = xdr_encode_u32(bp, 0); /* RPC flags */
+ bp = xdr_encode_YFSFid(bp, &orig_dvp->fid);
+ bp = xdr_encode_name(bp, orig_name);
+ bp = xdr_encode_YFSFid(bp, &new_dvp->fid);
+ bp = xdr_encode_name(bp, new_name);
+ yfs_check_req(call, bp);
+
+ call->fid = orig_dvp->fid;
+ trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name);
+ afs_make_op_call(op, call, GFP_NOFS);
+}
+
+/*
+ * Rename a file or directory, failing if the target dirent exists.
+ */
+void yfs_fs_rename_noreplace(struct afs_operation *op)
+{
+ struct afs_vnode_param *orig_dvp = &op->file[0];
+ struct afs_vnode_param *new_dvp = &op->file[1];
+ const struct qstr *orig_name = &op->dentry->d_name;
+ const struct qstr *new_name = &op->dentry_2->d_name;
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter("");
+
+ call = afs_alloc_flat_call(op->net, &yfs_RXYFSRename_NoReplace,
+ sizeof(__be32) +
+ sizeof(struct yfs_xdr_RPCFlags) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ xdr_strlen(orig_name->len) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ xdr_strlen(new_name->len),
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSVolSync));
+ if (!call)
+ return afs_op_nomem(op);
+
+ /* Marshall the parameters. */
+ bp = call->request;
+ bp = xdr_encode_u32(bp, YFSRENAME_NOREPLACE);
+ bp = xdr_encode_u32(bp, 0); /* RPC flags */
+ bp = xdr_encode_YFSFid(bp, &orig_dvp->fid);
+ bp = xdr_encode_name(bp, orig_name);
+ bp = xdr_encode_YFSFid(bp, &new_dvp->fid);
+ bp = xdr_encode_name(bp, new_name);
+ yfs_check_req(call, bp);
+
+ call->fid = orig_dvp->fid;
+ trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name);
+ afs_make_op_call(op, call, GFP_NOFS);
+}
+
+/*
+ * Exchange a pair of files directories.
+ */
+void yfs_fs_rename_exchange(struct afs_operation *op)
+{
+ struct afs_vnode_param *orig_dvp = &op->file[0];
+ struct afs_vnode_param *new_dvp = &op->file[1];
+ const struct qstr *orig_name = &op->dentry->d_name;
+ const struct qstr *new_name = &op->dentry_2->d_name;
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter("");
+
+ call = afs_alloc_flat_call(op->net, &yfs_RXYFSRename_Exchange,
+ sizeof(__be32) +
+ sizeof(struct yfs_xdr_RPCFlags) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ xdr_strlen(orig_name->len) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ xdr_strlen(new_name->len),
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSFid) +
+ sizeof(struct yfs_xdr_YFSFetchStatus) +
+ sizeof(struct yfs_xdr_YFSVolSync));
+ if (!call)
+ return afs_op_nomem(op);
+
+ /* Marshall the parameters. */
+ bp = call->request;
+ bp = xdr_encode_u32(bp, YFSRENAME_EXCHANGE);
+ bp = xdr_encode_u32(bp, 0); /* RPC flags */
+ bp = xdr_encode_YFSFid(bp, &orig_dvp->fid);
+ bp = xdr_encode_name(bp, orig_name);
+ bp = xdr_encode_YFSFid(bp, &new_dvp->fid);
+ bp = xdr_encode_name(bp, new_name);
+ yfs_check_req(call, bp);
+
+ call->fid = orig_dvp->fid;
trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1102,6 +1370,7 @@ void yfs_fs_store_data(struct afs_operation *op)
bp = xdr_encode_u64(bp, op->store.i_size);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1158,6 +1427,7 @@ static void yfs_fs_setattr_size(struct afs_operation *op)
bp = xdr_encode_u64(bp, attr->ia_size); /* new file length */
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1196,6 +1466,7 @@ void yfs_fs_setattr(struct afs_operation *op)
bp = xdr_encode_YFS_StoreStatus(bp, attr);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1366,6 +1637,7 @@ void yfs_fs_get_volume_status(struct afs_operation *op)
bp = xdr_encode_u64(bp, vp->fid.vid);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1430,6 +1702,7 @@ void yfs_fs_set_lock(struct afs_operation *op)
bp = xdr_encode_u32(bp, op->lock.type);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_calli(call, &vp->fid, op->lock.type);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1460,6 +1733,7 @@ void yfs_fs_extend_lock(struct afs_operation *op)
bp = xdr_encode_YFSFid(bp, &vp->fid);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1490,6 +1764,7 @@ void yfs_fs_release_lock(struct afs_operation *op)
bp = xdr_encode_YFSFid(bp, &vp->fid);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1556,6 +1831,7 @@ void yfs_fs_fetch_status(struct afs_operation *op)
bp = xdr_encode_YFSFid(bp, &vp->fid);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1736,6 +2012,7 @@ void yfs_fs_inline_bulk_status(struct afs_operation *op)
bp = xdr_encode_YFSFid(bp, &op->more_files[i].fid);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_NOFS);
}
@@ -1898,6 +2175,7 @@ void yfs_fs_fetch_opaque_acl(struct afs_operation *op)
bp = xdr_encode_YFSFid(bp, &vp->fid);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_KERNEL);
}
@@ -1948,6 +2226,7 @@ void yfs_fs_store_opaque_acl2(struct afs_operation *op)
bp += size / sizeof(__be32);
yfs_check_req(call, bp);
+ call->fid = vp->fid;
trace_afs_make_fs_call(call, &vp->fid);
afs_make_op_call(op, call, GFP_KERNEL);
}