Currently, just free up any referring calls information.
Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
[nfs41: fix csr_{,target}highestslotid]
Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
---
fs/nfs/callback.h | 4 ++++
fs/nfs/callback_proc.c | 28 ++++++++++++++++++++++++++++
2 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index 1b046ec..0316a06 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -103,6 +103,9 @@ struct cb_sequenceres {
uint32_t csr_target_highestslotid;
};
+extern unsigned nfs4_callback_sequence(struct cb_sequenceargs *args,
+ struct cb_sequenceres *res);
+
#endif /* CONFIG_NFS_V4_1 */
extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res);
@@ -119,6 +122,7 @@ extern void nfs_callback_down(int minorversion);
* of slots for the backchannel.
*/
#define NFS41_BC_MIN_CALLBACKS 1
+#define NFS41_BC_MAX_CALLBACKS 1
extern unsigned int nfs_callback_set_tcpport;
extern unsigned short nfs_callback_tcpport;
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index f7e83e2..f731bbe 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -101,3 +101,31 @@ out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(res));
return res;
}
+
+#if defined(CONFIG_NFS_V4_1)
+
+/* FIXME: validate args->cbs_{sequence,slot}id */
+/* FIXME: referring calls should be processed */
+unsigned nfs4_callback_sequence(struct cb_sequenceargs *args,
+ struct cb_sequenceres *res)
+{
+ int i;
+ unsigned status = 0;
+
+ for (i = 0; i < args->csa_nrclists; i++)
+ kfree(args->csa_rclists[i].rcl_refcalls);
+ kfree(args->csa_rclists);
+
+ memcpy(&res->csr_sessionid, &args->csa_sessionid,
+ sizeof(res->csr_sessionid));
+ res->csr_sequenceid = args->csa_sequenceid;
+ res->csr_slotid = args->csa_slotid;
+ res->csr_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
+ res->csr_target_highestslotid = NFS41_BC_MAX_CALLBACKS - 1;
+
+ dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
+ res->csr_status = status;
+ return status;
+}
+
+#endif /* CONFIG_NFS_V4_1 */
--
1.6.2.1
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