From: "Michael S. Tsirkin" <mst@redhat.com> To: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org> Cc: Jason Wang <jasowang@redhat.com>, "David S. Miller" <davem@davemloft.net>, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition Date: Mon, 3 Sep 2018 22:22:37 -0400 [thread overview] Message-ID: <20180903222127-mutt-send-email-mst@kernel.org> (raw) In-Reply-To: <20180903175906.GA11529@glebfm.cloud.tilaa.com> On Mon, Sep 03, 2018 at 08:59:13PM +0300, Gleb Fotengauer-Malinovskiy wrote: > The _IOC_READ flag fits this ioctl request more because this request > actually only writes to, but doesn't read from userspace. > See NOTEs in include/uapi/asm-generic/ioctl.h for more information. > > Fixes: 429711aec282 ("vhost: switch to use new message format") > Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org> Hmm it does make sense, and it's not too late to fix this up. Jason, what's your take on this? Was _IOW intentional? > --- > include/uapi/linux/vhost.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h > index b1e22c40c4b6..84c3de89696a 100644 > --- a/include/uapi/linux/vhost.h > +++ b/include/uapi/linux/vhost.h > @@ -176,7 +176,7 @@ struct vhost_memory { > #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 > > #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) > -#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64) > +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) > > /* VHOST_NET specific defines */ > > > -- > glebfm
WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com> To: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org> Cc: kvm@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, "David S. Miller" <davem@davemloft.net> Subject: Re: [PATCH] vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition Date: Mon, 3 Sep 2018 22:22:37 -0400 [thread overview] Message-ID: <20180903222127-mutt-send-email-mst@kernel.org> (raw) In-Reply-To: <20180903175906.GA11529@glebfm.cloud.tilaa.com> On Mon, Sep 03, 2018 at 08:59:13PM +0300, Gleb Fotengauer-Malinovskiy wrote: > The _IOC_READ flag fits this ioctl request more because this request > actually only writes to, but doesn't read from userspace. > See NOTEs in include/uapi/asm-generic/ioctl.h for more information. > > Fixes: 429711aec282 ("vhost: switch to use new message format") > Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org> Hmm it does make sense, and it's not too late to fix this up. Jason, what's your take on this? Was _IOW intentional? > --- > include/uapi/linux/vhost.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h > index b1e22c40c4b6..84c3de89696a 100644 > --- a/include/uapi/linux/vhost.h > +++ b/include/uapi/linux/vhost.h > @@ -176,7 +176,7 @@ struct vhost_memory { > #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 > > #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) > -#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64) > +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) > > /* VHOST_NET specific defines */ > > > -- > glebfm
next prev parent reply other threads:[~2018-09-04 2:22 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-09-03 17:59 [PATCH] vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition Gleb Fotengauer-Malinovskiy 2018-09-04 2:22 ` Michael S. Tsirkin [this message] 2018-09-04 2:22 ` Michael S. Tsirkin 2018-09-04 3:08 ` Jason Wang 2018-09-04 3:11 ` Michael S. Tsirkin 2018-09-04 4:23 ` David Miller 2018-09-04 4:23 ` David Miller 2018-09-04 3:11 ` Michael S. Tsirkin 2018-09-04 3:08 ` Jason Wang -- strict thread matches above, loose matches on Subject: below -- 2018-09-03 17:59 Gleb Fotengauer-Malinovskiy
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