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-rw-r--r--drivers/firmware/qemu_fw_cfg.c8
-rw-r--r--drivers/vhost/scsi.c4
-rw-r--r--drivers/vhost/vhost.c4
-rw-r--r--drivers/vhost/vsock.c2
-rw-r--r--drivers/virtio/virtio_balloon.c24
5 files changed, 29 insertions, 13 deletions
diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index 0e2011636fbb..5cfe39f7a45f 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -10,9 +10,9 @@
* and select subsets of aarch64), a Device Tree node (on arm), or using
* a kernel module (or command line) parameter with the following syntax:
*
- * [fw_cfg.]ioport=<size>@<base>[:<ctrl_off>:<data_off>]
+ * [qemu_fw_cfg.]ioport=<size>@<base>[:<ctrl_off>:<data_off>]
* or
- * [fw_cfg.]mmio=<size>@<base>[:<ctrl_off>:<data_off>]
+ * [qemu_fw_cfg.]mmio=<size>@<base>[:<ctrl_off>:<data_off>]
*
* where:
* <size> := size of ioport or mmio range
@@ -21,9 +21,9 @@
* <data_off> := (optional) offset of data register
*
* e.g.:
- * fw_cfg.ioport=2@0x510:0:1 (the default on x86)
+ * qemu_fw_cfg.ioport=2@0x510:0:1 (the default on x86)
* or
- * fw_cfg.mmio=0xA@0x9020000:8:0 (the default on arm)
+ * qemu_fw_cfg.mmio=0xA@0x9020000:8:0 (the default on arm)
*/
#include <linux/module.h>
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 35e929f132e8..1bc9be829fb4 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -519,7 +519,7 @@ static void vhost_scsi_complete_cmd_work(struct vhost_work *work)
vs_completion_work);
DECLARE_BITMAP(signal, VHOST_SCSI_MAX_VQ);
struct virtio_scsi_cmd_resp v_rsp;
- struct vhost_scsi_cmd *cmd;
+ struct vhost_scsi_cmd *cmd, *t;
struct llist_node *llnode;
struct se_cmd *se_cmd;
struct iov_iter iov_iter;
@@ -527,7 +527,7 @@ static void vhost_scsi_complete_cmd_work(struct vhost_work *work)
bitmap_zero(signal, VHOST_SCSI_MAX_VQ);
llnode = llist_del_all(&vs->vs_completion_list);
- llist_for_each_entry(cmd, llnode, tvc_completion_list) {
+ llist_for_each_entry_safe(cmd, t, llnode, tvc_completion_list) {
se_cmd = &cmd->tvc_se_cmd;
pr_debug("%s tv_cmd %p resid %u status %#02x\n", __func__,
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index d6dbb28245e6..33ac2b186b85 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1175,7 +1175,7 @@ static int iotlb_access_ok(struct vhost_virtqueue *vq,
{
const struct vhost_umem_node *node;
struct vhost_umem *umem = vq->iotlb;
- u64 s = 0, size, orig_addr = addr;
+ u64 s = 0, size, orig_addr = addr, last = addr + len - 1;
if (vhost_vq_meta_fetch(vq, addr, len, type))
return true;
@@ -1183,7 +1183,7 @@ static int iotlb_access_ok(struct vhost_virtqueue *vq,
while (len > s) {
node = vhost_umem_interval_tree_iter_first(&umem->umem_tree,
addr,
- addr + len - 1);
+ last);
if (node == NULL || node->start > addr) {
vhost_iotlb_miss(vq, addr, access);
return false;
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index c9de9c41aa97..5a5e981bd8e4 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -518,6 +518,8 @@ static int vhost_vsock_dev_open(struct inode *inode, struct file *file)
goto out;
}
+ vsock->guest_cid = 0; /* no CID assigned yet */
+
atomic_set(&vsock->queued_replies, 0);
vqs[VSOCK_VQ_TX] = &vsock->vqs[VSOCK_VQ_TX];
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index f0b3a0b9d42f..7960746f7597 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -143,16 +143,17 @@ static void set_page_pfns(struct virtio_balloon *vb,
static unsigned fill_balloon(struct virtio_balloon *vb, size_t num)
{
- struct balloon_dev_info *vb_dev_info = &vb->vb_dev_info;
unsigned num_allocated_pages;
+ unsigned num_pfns;
+ struct page *page;
+ LIST_HEAD(pages);
/* We can only do one array worth at a time. */
num = min(num, ARRAY_SIZE(vb->pfns));
- mutex_lock(&vb->balloon_lock);
- for (vb->num_pfns = 0; vb->num_pfns < num;
- vb->num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) {
- struct page *page = balloon_page_enqueue(vb_dev_info);
+ for (num_pfns = 0; num_pfns < num;
+ num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) {
+ struct page *page = balloon_page_alloc();
if (!page) {
dev_info_ratelimited(&vb->vdev->dev,
@@ -162,6 +163,19 @@ static unsigned fill_balloon(struct virtio_balloon *vb, size_t num)
msleep(200);
break;
}
+
+ balloon_page_push(&pages, page);
+ }
+
+ mutex_lock(&vb->balloon_lock);
+
+ vb->num_pfns = 0;
+
+ while ((page = balloon_page_pop(&pages))) {
+ balloon_page_enqueue(&vb->vb_dev_info, page);
+
+ vb->num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE;
+
set_page_pfns(vb, vb->pfns + vb->num_pfns, page);
vb->num_pages += VIRTIO_BALLOON_PAGES_PER_PAGE;
if (!virtio_has_feature(vb->vdev,

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