9p: typo fixes and minor cleanups

Typo fixes and minor cleanups for v9fs
Signed-off-by: Rob Landley <rob@landley.net>
Reviewed-by: Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

include/net/9p/9p.h

@@ -241,10 +241,10 @@ enum p9_open_mode_t {
 
 /**
  * enum p9_perm_t - 9P permissions
- * @P9_DMDIR: mode bite for directories
+ * @P9_DMDIR: mode bit for directories
  * @P9_DMAPPEND: mode bit for is append-only
  * @P9_DMEXCL: mode bit for excluse use (only one open handle allowed)
- * @P9_DMMOUNT: mode bite for mount points
+ * @P9_DMMOUNT: mode bit for mount points
  * @P9_DMAUTH: mode bit for authentication file
  * @P9_DMTMP: mode bit for non-backed-up files
  * @P9_DMSYMLINK: mode bit for symbolic links (9P2000.u)
@@ -362,7 +362,7 @@ struct p9_qid {
 };
 
 /**
- * struct p9_stat - file system metadata information
+ * struct p9_wstat - file system metadata information
  * @size: length prefix for this stat structure instance
  * @type: the type of the server (equivalent to a major number)
  * @dev: the sub-type of the server (equivalent to a minor number)
@@ -687,10 +687,10 @@ struct p9_rwstat {
  * @size: prefixed length of the structure
  * @id: protocol operating identifier of type &p9_msg_t
  * @tag: transaction id of the request
- * @offset: used by marshalling routines to track currentposition in buffer
+ * @offset: used by marshalling routines to track current position in buffer
  * @capacity: used by marshalling routines to track total malloc'd capacity
  * @pubuf: Payload user buffer given by the caller
- * @pubuf: Payload kernel buffer given by the caller
+ * @pkbuf: Payload kernel buffer given by the caller
  * @pbuf_size: pubuf/pkbuf(only one will be !NULL) size to be read/write.
  * @private: For transport layer's use.
  * @sdata: payload

include/net/9p/client.h

@@ -60,7 +60,7 @@ enum p9_trans_status {
 };
 
 /**
- * enum p9_req_status_t - virtio request status
+ * enum p9_req_status_t - status of a request
  * @REQ_STATUS_IDLE: request slot unused
  * @REQ_STATUS_ALLOC: request has been allocated but not sent
  * @REQ_STATUS_UNSENT: request waiting to be sent

include/net/9p/transport.h

@@ -41,6 +41,7 @@
  * @pref: Preferences of this transport
  * @def: set if this transport should be considered the default
  * @create: member function to create a new connection on this transport
+ * @close: member function to discard a connection on this transport
  * @request: member function to issue a request to the transport
  * @cancel: member function to cancel a request (if it hasn't been sent)
  *
@@ -48,7 +49,7 @@
  * transport module with the 9P core network module and used by the client
  * to instantiate a new connection on a transport.
  *
- * BUGS: the transport module list isn't protected.
+ * The transport module list is protected by v9fs_trans_lock.
  */
 
 struct p9_trans_module {

net/9p/client.c

@@ -92,9 +92,6 @@ static int get_protocol_version(const substring_t *name)
 	return version;
 }
 
-static struct p9_req_t *
-p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...);
-
 /**
  * parse_options - parse mount options into client structure
  * @opts: options string passed from mount
@@ -518,12 +515,15 @@ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req)
 	return err;
 }
 
+static struct p9_req_t *
+p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...);
+
 /**
  * p9_client_flush - flush (cancel) a request
  * @c: client state
  * @oldreq: request to cancel
  *
- * This sents a flush for a particular requests and links
+ * This sents a flush for a particular request and links
  * the flush request to the original request.  The current
  * code only supports a single flush request although the protocol
  * allows for multiple flush requests to be sent for a single request.
@@ -1298,7 +1298,7 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset,
 	if (count < rsize)
 		rsize = count;
 
-	/* Don't bother zerocopy form small IO (< 1024) */
+	/* Don't bother zerocopy for small IO (< 1024) */
 	if (((clnt->trans_mod->pref & P9_TRANS_PREF_PAYLOAD_MASK) ==
 			P9_TRANS_PREF_PAYLOAD_SEP) && (rsize > 1024)) {
 		req = p9_client_rpc(clnt, P9_TREAD, "dqE", fid->fid, offset,