We are sending whole of virtio_fs_foreget struct to the other end over
virtqueue. Other end does not need to see elements like "struct list".
That's internal detail of guest kernel. Fix it.
Signed-off-by: Vivek Goyal <[email protected]>
---
fs/fuse/virtio_fs.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index 6cc7be170cb8..43224db8d9ed 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -48,11 +48,15 @@ struct virtio_fs {
unsigned int num_request_queues; /* number of request queues */
};
-struct virtio_fs_forget {
+struct virtio_fs_forget_req {
struct fuse_in_header ih;
struct fuse_forget_in arg;
+};
+
+struct virtio_fs_forget {
/* This request can be temporarily queued on virt queue */
struct list_head list;
+ struct virtio_fs_forget_req req;
};
static int virtio_fs_enqueue_req(struct virtio_fs_vq *fsvq,
@@ -325,6 +329,7 @@ static int send_forget_request(struct virtio_fs_vq *fsvq,
struct virtqueue *vq;
int ret = 0;
bool notify;
+ struct virtio_fs_forget_req *req = &forget->req;
spin_lock(&fsvq->lock);
if (!fsvq->connected) {
@@ -334,7 +339,7 @@ static int send_forget_request(struct virtio_fs_vq *fsvq,
goto out;
}
- sg_init_one(&sg, forget, sizeof(*forget));
+ sg_init_one(&sg, req, sizeof(*req));
vq = fsvq->vq;
dev_dbg(&vq->vdev->dev, "%s\n", __func__);
@@ -730,6 +735,7 @@ __releases(fiq->lock)
{
struct fuse_forget_link *link;
struct virtio_fs_forget *forget;
+ struct virtio_fs_forget_req *req;
struct virtio_fs *fs;
struct virtio_fs_vq *fsvq;
u64 unique;
@@ -743,14 +749,15 @@ __releases(fiq->lock)
/* Allocate a buffer for the request */
forget = kmalloc(sizeof(*forget), GFP_NOFS | __GFP_NOFAIL);
+ req = &forget->req;
- forget->ih = (struct fuse_in_header){
+ req->ih = (struct fuse_in_header){
.opcode = FUSE_FORGET,
.nodeid = link->forget_one.nodeid,
.unique = unique,
- .len = sizeof(*forget),
+ .len = sizeof(*req),
};
- forget->arg = (struct fuse_forget_in){
+ req->arg = (struct fuse_forget_in){
.nlookup = link->forget_one.nlookup,
};
--
2.20.1
On Wed, Oct 30, 2019 at 11:07:18AM -0400, Vivek Goyal wrote:
> We are sending whole of virtio_fs_foreget struct to the other end over
s/foreget/forget/