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virtio: Reorder fields in 'struct virtqueue'

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Group some variables based on their sizes to reduce hole and avoid padding.
On x86_64, this shrinks the size of 'struct virtqueue'
from 72 to 68 bytes.

It saves a few bytes of memory.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Message-Id: <8f3d2e49270a2158717e15008e7ed7228196ba02.1676707807.git.christophe.jaillet@wanadoo.fr>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Peter Lafreniere <peter@n8pjl.ca>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
This commit is contained in:
Christophe JAILLET
2023-02-18 09:10:31 +01:00
committed by Michael S. Tsirkin
parent e4be66e5f3
commit 48cd6bc5b2
1 changed files with 1 additions and 1 deletions
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2
include/linux/virtio.h
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@@ -34,8 +34,8 @@ struct virtqueue {
unsigned int index;
unsigned int num_free;
unsigned int num_max;
void *priv;
bool reset;
void *priv;
};
int virtqueue_add_outbuf(struct virtqueue *vq,