diff options
Diffstat (limited to 'drivers/virtio')
| -rw-r--r-- | drivers/virtio/Kconfig | 11 | ||||
| -rw-r--r-- | drivers/virtio/virtio_balloon.c | 13 | ||||
| -rw-r--r-- | drivers/virtio/virtio_mmio.c | 7 |
3 files changed, 21 insertions, 10 deletions
diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig index 023fc3bc01c6..078615cf2afc 100644 --- a/drivers/virtio/Kconfig +++ b/drivers/virtio/Kconfig @@ -43,6 +43,17 @@ config VIRTIO_PCI_LEGACY If unsure, say Y. +config VIRTIO_PMEM + tristate "Support for virtio pmem driver" + depends on VIRTIO + depends on LIBNVDIMM + help + This driver provides access to virtio-pmem devices, storage devices + that are mapped into the physical address space - similar to NVDIMMs + - with a virtio-based flushing interface. + + If unsure, say Y. + config VIRTIO_BALLOON tristate "Virtio balloon driver" depends on VIRTIO diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 44339fc87cc7..226fbb995fb0 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -18,6 +18,7 @@ #include <linux/mm.h> #include <linux/mount.h> #include <linux/magic.h> +#include <linux/pseudo_fs.h> /* * Balloon device works in 4K page units. So each page is pointed to by @@ -745,20 +746,14 @@ static int virtballoon_migratepage(struct balloon_dev_info *vb_dev_info, return MIGRATEPAGE_SUCCESS; } -static struct dentry *balloon_mount(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int balloon_init_fs_context(struct fs_context *fc) { - static const struct dentry_operations ops = { - .d_dname = simple_dname, - }; - - return mount_pseudo(fs_type, "balloon-kvm:", NULL, &ops, - BALLOON_KVM_MAGIC); + return init_pseudo(fc, BALLOON_KVM_MAGIC) ? 0 : -ENOMEM; } static struct file_system_type balloon_fs = { .name = "balloon-kvm", - .mount = balloon_mount, + .init_fs_context = balloon_init_fs_context, .kill_sb = kill_anon_super, }; diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c index f363fbeb5ab0..e09edb5c5e06 100644 --- a/drivers/virtio/virtio_mmio.c +++ b/drivers/virtio/virtio_mmio.c @@ -463,9 +463,14 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned nvqs, struct irq_affinity *desc) { struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev); - unsigned int irq = platform_get_irq(vm_dev->pdev, 0); + int irq = platform_get_irq(vm_dev->pdev, 0); int i, err, queue_idx = 0; + if (irq < 0) { + dev_err(&vdev->dev, "Cannot get IRQ resource\n"); + return irq; + } + err = request_irq(irq, vm_interrupt, IRQF_SHARED, dev_name(&vdev->dev), vm_dev); if (err) |
