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(parent: 162a689) | patch
virtio: console makes incorrect assumption about virtio API
authorRusty Russell <rusty@rustcorp.com.au>
Thu, 8 Apr 2010 15:46:16 +0000 (09:46 -0600)
committerRusty Russell <rusty@rustcorp.com.au>
Thu, 8 Apr 2010 00:16:17 +0000 (09:46 +0930)
commit9ff4cfab82d27e9fda72315f911bbaa9516e04bc
treea3c16833f8d9c0eb3d4194f4fd11c98e3899ffb4tree | snapshot
parent162a689a13ed61c0752726edb75427b2cd4186c1commit | diff
virtio: console makes incorrect assumption about virtio API

The get_buf() API sets the second arg to the number of bytes *written*
by the other side; in this case it should be zero as these are output buffers.

lguest gets this right (obviously kvm's console doesn't), resulting in
continual buildup of console writes.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Amit Shah <amit.shah@redhat.com>
drivers/char/virtio_console.c diff | blob | history
Full containers within linux kernel