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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-03 01:14:04 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-03 01:14:04 +0400 |
commit | 736a2dd2571ac56b11ed95a7814d838d5311be04 (patch) | |
tree | de10d107025970c6e51d5b6faeba799ed4b9caae /drivers/char/virtio_console.c | |
parent | 0b2e3b6bb4a415379f16e38fc92db42379be47a1 (diff) | |
parent | 01d779a14ef800b74684d9692add4944df052461 (diff) | |
download | linux-736a2dd2571ac56b11ed95a7814d838d5311be04.tar.xz |
Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio & lguest updates from Rusty Russell:
"Lots of virtio work which wasn't quite ready for last merge window.
Plus I dived into lguest again, reworking the pagetable code so we can
move the switcher page: our fixmaps sometimes take more than 2MB now..."
Ugh. Annoying conflicts with the tcm_vhost -> vhost_scsi rename.
Hopefully correctly resolved.
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (57 commits)
caif_virtio: Remove bouncing email addresses
lguest: improve code readability in lg_cpu_start.
virtio-net: fill only rx queues which are being used
lguest: map Switcher below fixmap.
lguest: cache last cpu we ran on.
lguest: map Switcher text whenever we allocate a new pagetable.
lguest: don't share Switcher PTE pages between guests.
lguest: expost switcher_pages array (as lg_switcher_pages).
lguest: extract shadow PTE walking / allocating.
lguest: make check_gpte et. al return bool.
lguest: assume Switcher text is a single page.
lguest: rename switcher_page to switcher_pages.
lguest: remove RESERVE_MEM constant.
lguest: check vaddr not pgd for Switcher protection.
lguest: prepare to make SWITCHER_ADDR a variable.
virtio: console: replace EMFILE with EBUSY for already-open port
virtio-scsi: reset virtqueue affinity when doing cpu hotplug
virtio-scsi: introduce multiqueue support
virtio-scsi: push vq lock/unlock into virtscsi_vq_done
virtio-scsi: pass struct virtio_scsi to virtqueue completion function
...
Diffstat (limited to 'drivers/char/virtio_console.c')
-rw-r--r-- | drivers/char/virtio_console.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index ce5f3fc25d6d..1b456fe9b87a 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -78,8 +78,8 @@ struct ports_driver_data { }; static struct ports_driver_data pdrvdata; -DEFINE_SPINLOCK(pdrvdata_lock); -DECLARE_COMPLETION(early_console_added); +static DEFINE_SPINLOCK(pdrvdata_lock); +static DECLARE_COMPLETION(early_console_added); /* This struct holds information that's relevant only for console ports */ struct console { @@ -503,7 +503,7 @@ static int add_inbuf(struct virtqueue *vq, struct port_buffer *buf) sg_init_one(sg, buf->buf, buf->size); - ret = virtqueue_add_buf(vq, sg, 0, 1, buf, GFP_ATOMIC); + ret = virtqueue_add_inbuf(vq, sg, 1, buf, GFP_ATOMIC); virtqueue_kick(vq); if (!ret) ret = vq->num_free; @@ -572,7 +572,7 @@ static ssize_t __send_control_msg(struct ports_device *portdev, u32 port_id, sg_init_one(sg, &cpkt, sizeof(cpkt)); spin_lock(&portdev->c_ovq_lock); - if (virtqueue_add_buf(vq, sg, 1, 0, &cpkt, GFP_ATOMIC) == 0) { + if (virtqueue_add_outbuf(vq, sg, 1, &cpkt, GFP_ATOMIC) == 0) { virtqueue_kick(vq); while (!virtqueue_get_buf(vq, &len)) cpu_relax(); @@ -622,7 +622,7 @@ static ssize_t __send_to_port(struct port *port, struct scatterlist *sg, reclaim_consumed_buffers(port); - err = virtqueue_add_buf(out_vq, sg, nents, 0, data, GFP_ATOMIC); + err = virtqueue_add_outbuf(out_vq, sg, nents, data, GFP_ATOMIC); /* Tell Host to go! */ virtqueue_kick(out_vq); @@ -1040,7 +1040,7 @@ static int port_fops_open(struct inode *inode, struct file *filp) spin_lock_irq(&port->inbuf_lock); if (port->guest_connected) { spin_unlock_irq(&port->inbuf_lock); - ret = -EMFILE; + ret = -EBUSY; goto out; } @@ -1202,7 +1202,7 @@ int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int)) return hvc_instantiate(0, 0, &hv_ops); } -int init_port_console(struct port *port) +static int init_port_console(struct port *port) { int ret; |