9pfs: rename virtio-9p-coth.{c,h} to coth.{c,h}

Those two files are not virtio specific. Rename them to use generic
names.

Fix includes in various C files. Change define guards and comments in
header files.
Signed-off-by: NWei Liu <wei.liu2@citrix.com>
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

hw/9pfs/Makefile.objs

 common-obj-y  = virtio-9p.o
 common-obj-y += virtio-9p-local.o virtio-9p-xattr.o
 common-obj-y += virtio-9p-xattr-user.o virtio-9p-posix-acl.o
-common-obj-y += virtio-9p-coth.o cofs.o codir.o cofile.o
+common-obj-y += coth.o cofs.o codir.o cofile.o
 common-obj-y += coxattr.o virtio-9p-synth.o
 common-obj-$(CONFIG_OPEN_BY_HANDLE) +=  virtio-9p-handle.o
 common-obj-y += virtio-9p-proxy.o

hw/9pfs/codir.c

@@ -15,7 +15,7 @@
 #include "fsdev/qemu-fsdev.h"
 #include "qemu/thread.h"
 #include "qemu/coroutine.h"
-#include "virtio-9p-coth.h"
+#include "coth.h"
 
 int v9fs_co_readdir_r(V9fsPDU *pdu, V9fsFidState *fidp, struct dirent *dent,
                       struct dirent **result)

hw/9pfs/cofile.c

@@ -15,7 +15,7 @@
 #include "fsdev/qemu-fsdev.h"
 #include "qemu/thread.h"
 #include "qemu/coroutine.h"
-#include "virtio-9p-coth.h"
+#include "coth.h"
 
 int v9fs_co_st_gen(V9fsPDU *pdu, V9fsPath *path, mode_t st_mode,
                    V9fsStatDotl *v9stat)

hw/9pfs/cofs.c

@@ -15,7 +15,7 @@
 #include "fsdev/qemu-fsdev.h"
 #include "qemu/thread.h"
 #include "qemu/coroutine.h"
-#include "virtio-9p-coth.h"
+#include "coth.h"
 
 static ssize_t __readlink(V9fsState *s, V9fsPath *path, V9fsString *buf)
 {

hw/9pfs/virtio-9p-coth.c → hw/9pfs/coth.c

 /*
- * Virtio 9p backend
+ * 9p backend
  *
  * Copyright IBM, Corp. 2010
  *
@@ -16,7 +16,7 @@
 #include "block/thread-pool.h"
 #include "qemu/coroutine.h"
 #include "qemu/main-loop.h"
-#include "virtio-9p-coth.h"
+#include "coth.h"
 
 /* Called from QEMU I/O thread.  */
 static void coroutine_enter_cb(void *opaque, int ret)

hw/9pfs/virtio-9p-coth.h → hw/9pfs/coth.h

 /*
- * Virtio 9p backend
+ * 9p backend
  *
  * Copyright IBM, Corp. 2010
  *
@@ -12,8 +12,8 @@
  *
  */
 
-#ifndef _QEMU_VIRTIO_9P_COTH_H
-#define _QEMU_VIRTIO_9P_COTH_H
+#ifndef _QEMU_9P_COTH_H
+#define _QEMU_9P_COTH_H
 
 #include "qemu/thread.h"
 #include "qemu/coroutine.h"

hw/9pfs/coxattr.c

@@ -15,7 +15,7 @@
 #include "fsdev/qemu-fsdev.h"
 #include "qemu/thread.h"
 #include "qemu/coroutine.h"
-#include "virtio-9p-coth.h"
+#include "coth.h"
 
 int v9fs_co_llistxattr(V9fsPDU *pdu, V9fsPath *path, void *value, size_t size)
 {

hw/9pfs/virtio-9p-device.c

@@ -18,7 +18,7 @@
 #include "virtio-9p.h"
 #include "fsdev/qemu-fsdev.h"
 #include "virtio-9p-xattr.h"
-#include "virtio-9p-coth.h"
+#include "coth.h"
 #include "hw/virtio/virtio-access.h"
 
 static uint64_t virtio_9p_get_features(VirtIODevice *vdev, uint64_t features,

hw/9pfs/virtio-9p.c

@@ -19,7 +19,7 @@
 #include "virtio-9p.h"
 #include "fsdev/qemu-fsdev.h"
 #include "virtio-9p-xattr.h"
-#include "virtio-9p-coth.h"
+#include "coth.h"
 #include "trace.h"
 #include "migration/migration.h"