[PATCH] virtio_fs: Change module name to virtiofs.ko

[PATCH] virtio_fs: Change module name to virtiofs.ko

[Vivek Goyal]

We have been calling it virtio_fs and even file name is virtio_fs.c. Module
name is virtio_fs.ko but when registering file system user is supposed to
specify filesystem type as "virtiofs".

Masayoshi Mizuma reported that he specified filesytem type as "virtio_fs" and
got this warning on console.

  ------------[ cut here ]------------
  request_module fs-virtio_fs succeeded, but still no fs?
  WARNING: CPU: 1 PID: 1234 at fs/filesystems.c:274 get_fs_type+0x12c/0x138
  Modules linked in: ... virtio_fs fuse virtio_net net_failover ...
  CPU: 1 PID: 1234 Comm: mount Not tainted 5.4.0-rc1 #1

So looks like kernel could find the module virtio_fs.ko but could not find
filesystem type after that.

It probably is better to rename module name to virtiofs.ko so that above
warning goes away in case user ends up specifying wrong fs name.

Reported-by: Masayoshi Mizuma <msys.mizuma@gmail.com>
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
---
 fs/fuse/Makefile |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: rhvgoyal-linux/fs/fuse/Makefile
===================================================================
--- rhvgoyal-linux.orig/fs/fuse/Makefile	2019-10-11 13:53:43.905757435 -0400
+++ rhvgoyal-linux/fs/fuse/Makefile	2019-10-11 13:54:24.147757435 -0400
@@ -5,6 +5,7 @@
 
 obj-$(CONFIG_FUSE_FS) += fuse.o
 obj-$(CONFIG_CUSE) += cuse.o
-obj-$(CONFIG_VIRTIO_FS) += virtio_fs.o
+obj-$(CONFIG_VIRTIO_FS) += virtiofs.o
 
 fuse-objs := dev.o dir.o file.o inode.o control.o xattr.o acl.o readdir.o
+virtiofs-y += virtio_fs.o

Re: [PATCH] virtio_fs: Change module name to virtiofs.ko

[Masayoshi Mizuma]

Hi Vivek,

On Fri, Oct 11, 2019 at 02:18:26PM -0400, Vivek Goyal wrote:
> We have been calling it virtio_fs and even file name is virtio_fs.c. Module
> name is virtio_fs.ko but when registering file system user is supposed to
> specify filesystem type as "virtiofs".
> 
> Masayoshi Mizuma reported that he specified filesytem type as "virtio_fs" and
> got this warning on console.
> 
>   ------------[ cut here ]------------
>   request_module fs-virtio_fs succeeded, but still no fs?
>   WARNING: CPU: 1 PID: 1234 at fs/filesystems.c:274 get_fs_type+0x12c/0x138
>   Modules linked in: ... virtio_fs fuse virtio_net net_failover ...
>   CPU: 1 PID: 1234 Comm: mount Not tainted 5.4.0-rc1 #1
> 
> So looks like kernel could find the module virtio_fs.ko but could not find
> filesystem type after that.
> 
> It probably is better to rename module name to virtiofs.ko so that above
> warning goes away in case user ends up specifying wrong fs name.

The warning is gone after applied this patch, thanks!
Please feel free to add:

    Tested-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>

- Masa

> 
> Reported-by: Masayoshi Mizuma <msys.mizuma@gmail.com>
> Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
> Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
> ---
>  fs/fuse/Makefile |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> Index: rhvgoyal-linux/fs/fuse/Makefile
> ===================================================================
> --- rhvgoyal-linux.orig/fs/fuse/Makefile	2019-10-11 13:53:43.905757435 -0400
> +++ rhvgoyal-linux/fs/fuse/Makefile	2019-10-11 13:54:24.147757435 -0400
> @@ -5,6 +5,7 @@
>  
>  obj-$(CONFIG_FUSE_FS) += fuse.o
>  obj-$(CONFIG_CUSE) += cuse.o
> -obj-$(CONFIG_VIRTIO_FS) += virtio_fs.o
> +obj-$(CONFIG_VIRTIO_FS) += virtiofs.o
>  
>  fuse-objs := dev.o dir.o file.o inode.o control.o xattr.o acl.o readdir.o
> +virtiofs-y += virtio_fs.o

Re: [PATCH] virtio_fs: Change module name to virtiofs.ko

[Stefan Hajnoczi]

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On Fri, Oct 11, 2019 at 02:18:26PM -0400, Vivek Goyal wrote:
> We have been calling it virtio_fs and even file name is virtio_fs.c. Module
> name is virtio_fs.ko but when registering file system user is supposed to
> specify filesystem type as "virtiofs".
> 
> Masayoshi Mizuma reported that he specified filesytem type as "virtio_fs" and
> got this warning on console.
> 
>   ------------[ cut here ]------------
>   request_module fs-virtio_fs succeeded, but still no fs?
>   WARNING: CPU: 1 PID: 1234 at fs/filesystems.c:274 get_fs_type+0x12c/0x138
>   Modules linked in: ... virtio_fs fuse virtio_net net_failover ...
>   CPU: 1 PID: 1234 Comm: mount Not tainted 5.4.0-rc1 #1
> 
> So looks like kernel could find the module virtio_fs.ko but could not find
> filesystem type after that.
> 
> It probably is better to rename module name to virtiofs.ko so that above
> warning goes away in case user ends up specifying wrong fs name.
> 
> Reported-by: Masayoshi Mizuma <msys.mizuma@gmail.com>
> Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
> Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
> ---
>  fs/fuse/Makefile |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> Index: rhvgoyal-linux/fs/fuse/Makefile
> ===================================================================
> --- rhvgoyal-linux.orig/fs/fuse/Makefile	2019-10-11 13:53:43.905757435 -0400
> +++ rhvgoyal-linux/fs/fuse/Makefile	2019-10-11 13:54:24.147757435 -0400
> @@ -5,6 +5,7 @@
>  
>  obj-$(CONFIG_FUSE_FS) += fuse.o
>  obj-$(CONFIG_CUSE) += cuse.o
> -obj-$(CONFIG_VIRTIO_FS) += virtio_fs.o
> +obj-$(CONFIG_VIRTIO_FS) += virtiofs.o
>  
>  fuse-objs := dev.o dir.o file.o inode.o control.o xattr.o acl.o readdir.o
> +virtiofs-y += virtio_fs.o

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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Re: [PATCH] virtio_fs: Change module name to virtiofs.ko

[Miklos Szeredi]

On Fri, Oct 11, 2019 at 8:18 PM Vivek Goyal <vgoyal@redhat.com> wrote:
>
> We have been calling it virtio_fs and even file name is virtio_fs.c. Module
> name is virtio_fs.ko but when registering file system user is supposed to
> specify filesystem type as "virtiofs".
>
> Masayoshi Mizuma reported that he specified filesytem type as "virtio_fs" and
> got this warning on console.
>
>   ------------[ cut here ]------------
>   request_module fs-virtio_fs succeeded, but still no fs?
>   WARNING: CPU: 1 PID: 1234 at fs/filesystems.c:274 get_fs_type+0x12c/0x138
>   Modules linked in: ... virtio_fs fuse virtio_net net_failover ...
>   CPU: 1 PID: 1234 Comm: mount Not tainted 5.4.0-rc1 #1
>
> So looks like kernel could find the module virtio_fs.ko but could not find
> filesystem type after that.
>
> It probably is better to rename module name to virtiofs.ko so that above
> warning goes away in case user ends up specifying wrong fs name.
>
> Reported-by: Masayoshi Mizuma <msys.mizuma@gmail.com>
> Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
> Signed-off-by: Vivek Goyal <vgoyal@redhat.com>

Thanks, applied.

Miklos