nfs41: V2 initial support for CB_RECALL_ANY
For now the clients returns _all_ the delegations of the specificed type it holds Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
parent
c79571a508
commit
31f0960778
|
@ -106,6 +106,17 @@ struct cb_sequenceres {
|
|||
extern unsigned nfs4_callback_sequence(struct cb_sequenceargs *args,
|
||||
struct cb_sequenceres *res);
|
||||
|
||||
|
||||
#define RCA4_TYPE_MASK_RDATA_DLG 0
|
||||
#define RCA4_TYPE_MASK_WDATA_DLG 1
|
||||
|
||||
struct cb_recallanyargs {
|
||||
struct sockaddr *craa_addr;
|
||||
uint32_t craa_objs_to_keep;
|
||||
uint32_t craa_type_mask;
|
||||
};
|
||||
|
||||
extern unsigned nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy);
|
||||
#endif /* CONFIG_NFS_V4_1 */
|
||||
|
||||
extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res);
|
||||
|
|
|
@ -227,4 +227,33 @@ out:
|
|||
return res->csr_status;
|
||||
}
|
||||
|
||||
unsigned nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy)
|
||||
{
|
||||
struct nfs_client *clp;
|
||||
int status;
|
||||
fmode_t flags = 0;
|
||||
|
||||
status = htonl(NFS4ERR_OP_NOT_IN_SESSION);
|
||||
clp = nfs_find_client(args->craa_addr, 4);
|
||||
if (clp == NULL)
|
||||
goto out;
|
||||
|
||||
dprintk("NFS: RECALL_ANY callback request from %s\n",
|
||||
rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR));
|
||||
|
||||
if (test_bit(RCA4_TYPE_MASK_RDATA_DLG, (const unsigned long *)
|
||||
&args->craa_type_mask))
|
||||
flags = FMODE_READ;
|
||||
if (test_bit(RCA4_TYPE_MASK_WDATA_DLG, (const unsigned long *)
|
||||
&args->craa_type_mask))
|
||||
flags |= FMODE_WRITE;
|
||||
|
||||
if (flags)
|
||||
nfs_expire_all_delegation_types(clp, flags);
|
||||
status = htonl(NFS4_OK);
|
||||
out:
|
||||
dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
|
||||
return status;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_NFS_V4_1 */
|
||||
|
|
|
@ -23,6 +23,7 @@
|
|||
#if defined(CONFIG_NFS_V4_1)
|
||||
#define CB_OP_SEQUENCE_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ + \
|
||||
4 + 1 + 3)
|
||||
#define CB_OP_RECALLANY_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
|
||||
#endif /* CONFIG_NFS_V4_1 */
|
||||
|
||||
#define NFSDBG_FACILITY NFSDBG_CALLBACK
|
||||
|
@ -326,6 +327,25 @@ out_free:
|
|||
goto out;
|
||||
}
|
||||
|
||||
static unsigned decode_recallany_args(struct svc_rqst *rqstp,
|
||||
struct xdr_stream *xdr,
|
||||
struct cb_recallanyargs *args)
|
||||
{
|
||||
uint32_t *p;
|
||||
|
||||
args->craa_addr = svc_addr(rqstp);
|
||||
p = read_buf(xdr, 4);
|
||||
if (unlikely(p == NULL))
|
||||
return htonl(NFS4ERR_BADXDR);
|
||||
args->craa_objs_to_keep = ntohl(*p++);
|
||||
p = read_buf(xdr, 4);
|
||||
if (unlikely(p == NULL))
|
||||
return htonl(NFS4ERR_BADXDR);
|
||||
args->craa_type_mask = ntohl(*p);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_NFS_V4_1 */
|
||||
|
||||
static __be32 encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
|
||||
|
@ -533,6 +553,7 @@ preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op)
|
|||
case OP_CB_GETATTR:
|
||||
case OP_CB_RECALL:
|
||||
case OP_CB_SEQUENCE:
|
||||
case OP_CB_RECALL_ANY:
|
||||
*op = &callback_ops[op_nr];
|
||||
break;
|
||||
|
||||
|
@ -540,7 +561,6 @@ preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op)
|
|||
case OP_CB_NOTIFY_DEVICEID:
|
||||
case OP_CB_NOTIFY:
|
||||
case OP_CB_PUSH_DELEG:
|
||||
case OP_CB_RECALL_ANY:
|
||||
case OP_CB_RECALLABLE_OBJ_AVAIL:
|
||||
case OP_CB_RECALL_SLOT:
|
||||
case OP_CB_WANTS_CANCELLED:
|
||||
|
@ -688,6 +708,11 @@ static struct callback_op callback_ops[] = {
|
|||
.encode_res = (callback_encode_res_t)encode_cb_sequence_res,
|
||||
.res_maxsize = CB_OP_SEQUENCE_RES_MAXSZ,
|
||||
},
|
||||
[OP_CB_RECALL_ANY] = {
|
||||
.process_op = (callback_process_op_t)nfs4_callback_recallany,
|
||||
.decode_args = (callback_decode_arg_t)decode_recallany_args,
|
||||
.res_maxsize = CB_OP_RECALLANY_RES_MAXSZ,
|
||||
},
|
||||
#endif /* CONFIG_NFS_V4_1 */
|
||||
};
|
||||
|
||||
|
|
|
@ -411,7 +411,7 @@ static void nfs_delegation_run_state_manager(struct nfs_client *clp)
|
|||
nfs4_schedule_state_manager(clp);
|
||||
}
|
||||
|
||||
static void nfs_expire_all_delegation_types(struct nfs_client *clp, fmode_t flags)
|
||||
void nfs_expire_all_delegation_types(struct nfs_client *clp, fmode_t flags)
|
||||
{
|
||||
nfs_client_mark_return_all_delegation_types(clp, flags);
|
||||
nfs_delegation_run_state_manager(clp);
|
||||
|
|
|
@ -40,6 +40,7 @@ void nfs_inode_return_delegation_noreclaim(struct inode *inode);
|
|||
struct inode *nfs_delegation_find_inode(struct nfs_client *clp, const struct nfs_fh *fhandle);
|
||||
void nfs_super_return_all_delegations(struct super_block *sb);
|
||||
void nfs_expire_all_delegations(struct nfs_client *clp);
|
||||
void nfs_expire_all_delegation_types(struct nfs_client *clp, fmode_t flags);
|
||||
void nfs_expire_unreferenced_delegations(struct nfs_client *clp);
|
||||
void nfs_handle_cb_pathdown(struct nfs_client *clp);
|
||||
int nfs_client_return_marked_delegations(struct nfs_client *clp);
|
||||
|
|
Loading…
Reference in a new issue