Displaying 4 results from an estimated 4 matches for "9017a55".
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901750
2014 May 13
2
[PATCH v1] vhost: avoid large order allocations
A test case which generates memory pressure while performing guest administration
fails with vhost triggering "page allocation failure" and guest not starting up.
After some analysis we discovered the allocation order of vhost to be rensponsible
for this behaviour. Thus we suggest patch 1/1 which dynamically allocates the
required memory. Please see its description for details.
Thanks,
2014 May 13
2
[PATCH v1] vhost: avoid large order allocations
A test case which generates memory pressure while performing guest administration
fails with vhost triggering "page allocation failure" and guest not starting up.
After some analysis we discovered the allocation order of vhost to be rensponsible
for this behaviour. Thus we suggest patch 1/1 which dynamically allocates the
required memory. Please see its description for details.
Thanks,
2014 May 13
0
[PATCH v1] vhost: avoid large order allocations
..._vq_desc(&n->dev, vq, vq->iov,
> - ARRAY_SIZE(vq->iov),
> + UIO_MAXIOV,
> &out, &in,
> NULL, NULL);
> /* On error, stop handling until the next kick. */
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 78987e4..9017a55 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -251,6 +251,8 @@ static int vhost_worker(void *data)
>
> static void vhost_vq_free_iovecs(struct vhost_virtqueue *vq)
> {
> + kfree(vq->iov);
> + vq->iov = NULL;
> kfree(vq->indirect);...
2014 May 13
2
[PATCH v1] vhost: avoid large order allocations
...for (;;) {
head = vhost_get_vq_desc(&n->dev, vq, vq->iov,
- ARRAY_SIZE(vq->iov),
+ UIO_MAXIOV,
&out, &in,
NULL, NULL);
/* On error, stop handling until the next kick. */
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 78987e4..9017a55 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -251,6 +251,8 @@ static int vhost_worker(void *data)
static void vhost_vq_free_iovecs(struct vhost_virtqueue *vq)
{
+ kfree(vq->iov);
+ vq->iov = NULL;
kfree(vq->indirect);
vq->indirect = NULL;
kfree(vq->log)...