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Re: [PATCH v3 1/3] virtio: Add virito_fs linux headers
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [PATCH v3 1/3] virtio: Add virito_fs linux headers |
Date: |
Mon, 30 Sep 2019 10:50:49 +0100 |
User-agent: |
Mutt/1.12.1 (2019-06-15) |
* Michael S. Tsirkin (address@hidden) wrote:
> On Tue, Sep 17, 2019 at 05:00:55PM +0100, Dr. David Alan Gilbert (git) wrote:
> > From: "Dr. David Alan Gilbert" <address@hidden>
> >
>
> typo in subject
oops thanks.
>
> > Pull in the virtio_fs.h linux header and the constant for the virtiofs
> > ID.
> >
> > Signed-off-by: Stefan Hajnoczi <address@hidden>
> > Signed-off-by: Vivek Goyal <address@hidden>
> > Signed-off-by: Miklos Szeredi <address@hidden>
>
> This isn't how we add this normally, we normally add
> the header to update-linux and then run it and add
> the result.
update-linux doesn't need changing because it's got:
"$tmpdir"/include/linux/*virtio*.h \
> In particular if someone reruns update-linux then the
> ID will be gone and build will fail.
>
> I suggest we either wait a bit until things land in Linux,
> or add these things in a private header for now,
> with an eye towards moving when header lands in Linux.
I'll rerun update-linux to regenerate this patch and repost the set.
Dave
>
>
> > ---
> > include/standard-headers/linux/virtio_fs.h | 41 +++++++++++++++++++++
> > include/standard-headers/linux/virtio_ids.h | 1 +
> > 2 files changed, 42 insertions(+)
> > create mode 100644 include/standard-headers/linux/virtio_fs.h
> >
> > diff --git a/include/standard-headers/linux/virtio_fs.h
> > b/include/standard-headers/linux/virtio_fs.h
> > new file mode 100644
> > index 0000000000..00bd7a6fa7
> > --- /dev/null
> > +++ b/include/standard-headers/linux/virtio_fs.h
> > @@ -0,0 +1,41 @@
> > +#ifndef _LINUX_VIRTIO_FS_H
> > +#define _LINUX_VIRTIO_FS_H
> > +/* This header is BSD licensed so anyone can use the definitions to
> > implement
> > + * compatible drivers/servers.
> > + *
> > + * Redistribution and use in source and binary forms, with or without
> > + * modification, are permitted provided that the following conditions
> > + * are met:
> > + * 1. Redistributions of source code must retain the above copyright
> > + * notice, this list of conditions and the following disclaimer.
> > + * 2. Redistributions in binary form must reproduce the above copyright
> > + * notice, this list of conditions and the following disclaimer in the
> > + * documentation and/or other materials provided with the distribution.
> > + * 3. Neither the name of IBM nor the names of its contributors
> > + * may be used to endorse or promote products derived from this software
> > + * without specific prior written permission.
> > + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
> > ``AS IS'' AND
> > + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> > + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
> > PURPOSE
> > + * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
> > + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
> > CONSEQUENTIAL
> > + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> > + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> > + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
> > STRICT
> > + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
> > WAY
> > + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> > + * SUCH DAMAGE. */
> > +#include "standard-headers/linux/types.h"
> > +#include "standard-headers/linux/virtio_ids.h"
> > +#include "standard-headers/linux/virtio_config.h"
> > +#include "standard-headers/linux/virtio_types.h"
> > +
> > +struct virtio_fs_config {
> > + /* Filesystem name (UTF-8, not NUL-terminated, padded with NULs) */
> > + uint8_t tag[36];
> > +
> > + /* Number of request queues */
> > + uint32_t num_request_queues;
> > +} QEMU_PACKED;
> > +
> > +#endif /* _LINUX_VIRTIO_FS_H */
> > diff --git a/include/standard-headers/linux/virtio_ids.h
> > b/include/standard-headers/linux/virtio_ids.h
> > index 32b2f94d1f..73fc004807 100644
> > --- a/include/standard-headers/linux/virtio_ids.h
> > +++ b/include/standard-headers/linux/virtio_ids.h
> > @@ -43,6 +43,7 @@
> > #define VIRTIO_ID_INPUT 18 /* virtio input */
> > #define VIRTIO_ID_VSOCK 19 /* virtio vsock transport */
> > #define VIRTIO_ID_CRYPTO 20 /* virtio crypto */
> > +#define VIRTIO_ID_FS 26 /* virtio filesystem */
> > #define VIRTIO_ID_PMEM 27 /* virtio pmem */
> >
> > #endif /* _LINUX_VIRTIO_IDS_H */
> > --
> > 2.21.0
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
- [Qemu-devel] [PATCH v3 0/3] Add virtio-fs (experimental), Dr. David Alan Gilbert (git), 2019/09/17
- [Qemu-devel] [PATCH v3 1/3] virtio: Add virito_fs linux headers, Dr. David Alan Gilbert (git), 2019/09/17
- [Qemu-devel] [PATCH v3 3/3] virtio: add vhost-user-fs-pci device, Dr. David Alan Gilbert (git), 2019/09/17
- [Qemu-devel] [PATCH v3 2/3] virtio: add vhost-user-fs base device, Dr. David Alan Gilbert (git), 2019/09/17
- Re: [Qemu-devel] [PATCH v3 0/3] Add virtio-fs (experimental), Cornelia Huck, 2019/09/18
- Re: [PATCH v3 0/3] Add virtio-fs (experimental), Michael S. Tsirkin, 2019/09/25