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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-07-04 13:13:55 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-07-04 13:13:55 -0700 |
commit | 404c3bc30cb1361e1b3533643326ab472d24a618 (patch) | |
tree | 156cc9032c8aee17167d926c5bdae009ba8f36d2 /drivers/vhost/vhost.c | |
parent | Input: wacom - TPC2FG doesn't store touch id for slots (diff) | |
parent | Linux 3.5-rc5 (diff) | |
download | linux-dev-404c3bc30cb1361e1b3533643326ab472d24a618.tar.xz linux-dev-404c3bc30cb1361e1b3533643326ab472d24a618.zip |
Merge commit 'v3.5-rc5' into next
Diffstat (limited to 'drivers/vhost/vhost.c')
-rw-r--r-- | drivers/vhost/vhost.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 947f00d8e091..112156f68afb 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -191,7 +191,9 @@ static int vhost_worker(void *data) struct vhost_dev *dev = data; struct vhost_work *work = NULL; unsigned uninitialized_var(seq); + mm_segment_t oldfs = get_fs(); + set_fs(USER_DS); use_mm(dev->mm); for (;;) { @@ -229,6 +231,7 @@ static int vhost_worker(void *data) } unuse_mm(dev->mm); + set_fs(oldfs); return 0; } @@ -1598,12 +1601,12 @@ void vhost_ubuf_put_and_wait(struct vhost_ubuf_ref *ubufs) kfree(ubufs); } -void vhost_zerocopy_callback(void *arg) +void vhost_zerocopy_callback(struct ubuf_info *ubuf) { - struct ubuf_info *ubuf = arg; - struct vhost_ubuf_ref *ubufs = ubuf->arg; + struct vhost_ubuf_ref *ubufs = ubuf->ctx; struct vhost_virtqueue *vq = ubufs->vq; + vhost_poll_queue(&vq->poll); /* set len = 1 to mark this desc buffers done DMA */ vq->heads[ubuf->desc].len = VHOST_DMA_DONE_LEN; kref_put(&ubufs->kref, vhost_zerocopy_done_signal); |