CIFS: Add mid handle callback
We need to process read responses differently because the data
should go directly into preallocated pages. This can be done
by specifying a mid handle callback.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 35cf62b..8a04a01 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1312,6 +1312,13 @@ typedef int (mid_receive_t)(struct TCP_Server_Info *server,
*/
typedef void (mid_callback_t)(struct mid_q_entry *mid);
+/*
+ * This is the protopyte for mid handle function. This is called once the mid
+ * has been recognized after decryption of the message.
+ */
+typedef int (mid_handle_t)(struct TCP_Server_Info *server,
+ struct mid_q_entry *mid);
+
/* one of these for every pending CIFS request to the server */
struct mid_q_entry {
struct list_head qhead; /* mids waiting on reply from this server */
@@ -1326,6 +1333,7 @@ struct mid_q_entry {
#endif
mid_receive_t *receive; /* call receive callback */
mid_callback_t *callback; /* call completion callback */
+ mid_handle_t *handle; /* call handle mid callback */
void *callback_data; /* general purpose pointer for callback */
void *resp_buf; /* pointer to received SMB header */
int mid_state; /* wish this were enum but can not pass to wait_event */