9pfs: add link to 9p developer docs

To lower the entry level for new developers, add a link to the 9p
developer docs (i.e. qemu wiki) to MAINTAINERS and to the beginning of
9p source files, that is to: https://wiki.qemu.org/Documentation/9p

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Acked-by: Greg Kurz <groug@kaod.org>
Message-Id: <E1leeDf-0008GZ-9q@lizzy.crudebyte.com>

MAINTAINERS

@@ -1881,6 +1881,7 @@ virtio-9p
 M: Greg Kurz <groug@kaod.org>
 M: Christian Schoenebeck <qemu_oss@crudebyte.com>
 S: Odd Fixes
+W: https://wiki.qemu.org/Documentation/9p
 F: hw/9pfs/
 X: hw/9pfs/xen-9p*
 F: fsdev/

hw/9pfs/9p-local.c

@@ -10,6 +10,11 @@
  * the COPYING file in the top-level directory.
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "9p.h"
 #include "9p-local.h"

hw/9pfs/9p-posix-acl.c

@@ -11,6 +11,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "qemu/xattr.h"
 #include "9p.h"

hw/9pfs/9p-proxy.c

@@ -10,6 +10,11 @@
  * the COPYING file in the top-level directory.
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include <sys/socket.h>
 #include <sys/un.h>

hw/9pfs/9p-synth.c

@@ -12,6 +12,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "9p.h"
 #include "fsdev/qemu-fsdev.h"

hw/9pfs/9p-util.c

@@ -10,6 +10,11 @@
  * See the COPYING file in the top-level directory.
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "qemu/xattr.h"
 #include "9p-util.h"

hw/9pfs/9p-xattr-user.c

@@ -11,6 +11,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "9p.h"
 #include "fsdev/file-op-9p.h"

hw/9pfs/9p-xattr.c

@@ -11,6 +11,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "9p.h"
 #include "fsdev/file-op-9p.h"

hw/9pfs/9p.c

@@ -11,6 +11,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include <glib/gprintf.h>
 #include "hw/virtio/virtio.h"

hw/9pfs/codir.c

@@ -11,6 +11,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "fsdev/qemu-fsdev.h"
 #include "qemu/thread.h"

hw/9pfs/cofile.c

@@ -11,6 +11,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "fsdev/qemu-fsdev.h"
 #include "qemu/thread.h"

hw/9pfs/cofs.c

@@ -11,6 +11,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "fsdev/qemu-fsdev.h"
 #include "qemu/thread.h"

hw/9pfs/coth.c

@@ -12,6 +12,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "block/thread-pool.h"
 #include "qemu/coroutine.h"

hw/9pfs/coxattr.c

@@ -11,6 +11,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "fsdev/qemu-fsdev.h"
 #include "qemu/thread.h"

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

@@ -11,6 +11,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "hw/virtio/virtio.h"
 #include "qemu/sockets.h"

hw/9pfs/xen-9p-backend.c

@@ -8,6 +8,11 @@
  *
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 
 #include "hw/9pfs/9p.h"

tests/qtest/libqos/virtio-9p.c

@@ -16,6 +16,11 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "libqtest.h"
 #include "qemu/module.h"

tests/qtest/virtio-9p-test.c

@@ -7,6 +7,11 @@
  * See the COPYING file in the top-level directory.
  */
 
+/*
+ * Not so fast! You might want to read the 9p developer docs first:
+ * https://wiki.qemu.org/Documentation/9p
+ */
+
 #include "qemu/osdep.h"
 #include "libqtest-single.h"
 #include "qemu/module.h"