search for: iminor

...ange, is the intention to create a single global char dev? If so, why is there this: +static int vhost_vdpa_open(struct inode *inode, struct file *filep) +{ + struct vhost_vdpa *v; + struct vhost_dev *dev; + struct vhost_virtqueue **vqs; + int nvqs, i, r, opened; + + v = vhost_vdpa_get_from_minor(iminor(inode)); ? If the idea is to create a per-vdpa char dev then this stuff belongs in vhost_vdpa_probe(), the cdev should be part of the vhost_vdpa, and the above should be container_of not an idr lookup. Jason

...ange, is the intention to create a single global char dev? If so, why is there this: +static int vhost_vdpa_open(struct inode *inode, struct file *filep) +{ + struct vhost_vdpa *v; + struct vhost_dev *dev; + struct vhost_virtqueue **vqs; + int nvqs, i, r, opened; + + v = vhost_vdpa_get_from_minor(iminor(inode)); ? If the idea is to create a per-vdpa char dev then this stuff belongs in vhost_vdpa_probe(), the cdev should be part of the vhost_vdpa, and the above should be container_of not an idr lookup. Jason

...ei > > If so, why is there this: > > +static int vhost_vdpa_open(struct inode *inode, struct file *filep) > +{ > + struct vhost_vdpa *v; > + struct vhost_dev *dev; > + struct vhost_virtqueue **vqs; > + int nvqs, i, r, opened; > + > + v = vhost_vdpa_get_from_minor(iminor(inode)); > > ? > > If the idea is to create a per-vdpa char dev then this stuff belongs > in vhost_vdpa_probe(), the cdev should be part of the vhost_vdpa, and > the above should be container_of not an idr lookup. > > Jason

...) return ret; } -#ifdef CONFIG_COMPAT -static long pp_compat_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - return pp_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); -} -#endif - static int pp_open(struct inode *inode, struct file *file) { unsigned int minor = iminor(inode); @@ -790,9 +782,7 @@ static const struct file_operations pp_fops = { .write = pp_write, .poll = pp_poll, .unlocked_ioctl = pp_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = pp_compat_ioctl, -#endif + .compat_ioctl = compat_ptr_ioctl, .open = pp_open, .release = pp_release,...

...) return ret; } -#ifdef CONFIG_COMPAT -static long pp_compat_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - return pp_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); -} -#endif - static int pp_open(struct inode *inode, struct file *file) { unsigned int minor = iminor(inode); @@ -790,9 +782,7 @@ static const struct file_operations pp_fops = { .write = pp_write, .poll = pp_poll, .unlocked_ioctl = pp_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = pp_compat_ioctl, -#endif + .compat_ioctl = compat_ptr_ioctl, .open = pp_open, .release = pp_release,...

...> + > > +static int vhost_vdpa_open(struct inode *inode, struct file *filep) > > +{ > > + struct vhost_vdpa *v; > > + struct vhost_dev *dev; > > + struct vhost_virtqueue **vqs; > > + int nvqs, i, r, opened; > > + > > + v = vhost_vdpa_get_from_minor(iminor(inode)); > > + if (!v) > > + return -ENODEV; > > + > > + opened = atomic_cmpxchg(&v->opened, 0, 1); > > + if (opened) { > > + r = -EBUSY; > > + goto err; > > + } > > + > > + nvqs = v->nvqs; > > + vhost_vdpa_reset(v); &gt...

...tatic long pp_compat_ioctl(struct file *file, unsigned int cmd, > - unsigned long arg) > -{ > - return pp_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > -} > -#endif > - > static int pp_open(struct inode *inode, struct file *file) > { > unsigned int minor = iminor(inode); > @@ -790,9 +782,7 @@ static const struct file_operations pp_fops = { > .write = pp_write, > .poll = pp_poll, > .unlocked_ioctl = pp_ioctl, > -#ifdef CONFIG_COMPAT > - .compat_ioctl = pp_compat_ioctl, > -#endif > + .compat_ioctl = compat_ptr_ioctl, >...

...) return ret; } -#ifdef CONFIG_COMPAT -static long pp_compat_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - return pp_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); -} -#endif - static int pp_open(struct inode *inode, struct file *file) { unsigned int minor = iminor(inode); @@ -790,9 +782,7 @@ static const struct file_operations pp_fops = { .write = pp_write, .poll = pp_poll, .unlocked_ioctl = pp_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = pp_compat_ioctl, -#endif + .compat_ioctl = generic_compat_ioctl_ptrarg, .open = pp_open, .release = pp...

...) return ret; } -#ifdef CONFIG_COMPAT -static long pp_compat_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - return pp_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); -} -#endif - static int pp_open(struct inode *inode, struct file *file) { unsigned int minor = iminor(inode); @@ -786,9 +778,7 @@ static const struct file_operations pp_fops = { .write = pp_write, .poll = pp_poll, .unlocked_ioctl = pp_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = pp_compat_ioctl, -#endif + .compat_ioctl = compat_ptr_ioctl, .open = pp_open, .release = pp_release,...

...dev. > + return -ENOTSUPP; > +} > + > +static int vhost_vdpa_open(struct inode *inode, struct file *filep) > +{ > + struct vhost_vdpa *v; > + struct vhost_dev *dev; > + struct vhost_virtqueue **vqs; > + int nvqs, i, r, opened; > + > + v = vhost_vdpa_get_from_minor(iminor(inode)); > + if (!v) > + return -ENODEV; > + > + opened = atomic_cmpxchg(&v->opened, 0, 1); > + if (opened) { > + r = -EBUSY; > + goto err; > + } > + > + nvqs = v->nvqs; > + vhost_vdpa_reset(v); > + > + vqs = kmalloc_array(nvqs, sizeof(*vqs), GFP_...

...dev. > + return -ENOTSUPP; > +} > + > +static int vhost_vdpa_open(struct inode *inode, struct file *filep) > +{ > + struct vhost_vdpa *v; > + struct vhost_dev *dev; > + struct vhost_virtqueue **vqs; > + int nvqs, i, r, opened; > + > + v = vhost_vdpa_get_from_minor(iminor(inode)); > + if (!v) > + return -ENODEV; > + > + opened = atomic_cmpxchg(&v->opened, 0, 1); > + if (opened) { > + r = -EBUSY; > + goto err; > + } > + > + nvqs = v->nvqs; > + vhost_vdpa_reset(v); > + > + vqs = kmalloc_array(nvqs, sizeof(*vqs), GFP_...

...vtest->list); + spin_unlock(&viotest_list_lock); + + kfree(vtest); + +} + +static int viotest_open(struct inode *inode, struct file *file) +{ + struct viotest_dev *vtest; + bool found=false; + + spin_lock(&viotest_list_lock); + + list_for_each_entry(vtest, &viotest_list, list) + if (iminor(inode) == MINOR(vtest->dev)){ + found=true; + break; + } + + BUG_ON(!found); + + spin_unlock(&viotest_list_lock); + + file->private_data = vtest; + + return nonseekable_open(inode, file); +} + +static int viotest_release(struct inode *inode, struct file *file) +{ + struct viotest_dev...

...vtest->list); + spin_unlock(&viotest_list_lock); + + kfree(vtest); + +} + +static int viotest_open(struct inode *inode, struct file *file) +{ + struct viotest_dev *vtest; + bool found=false; + + spin_lock(&viotest_list_lock); + + list_for_each_entry(vtest, &viotest_list, list) + if (iminor(inode) == MINOR(vtest->dev)){ + found=true; + break; + } + + BUG_ON(!found); + + spin_unlock(&viotest_list_lock); + + file->private_data = vtest; + + return nonseekable_open(inode, file); +} + +static int viotest_release(struct inode *inode, struct file *file) +{ + struct viotest_dev...

This is the third version of the macvtap device driver, following another major restructuring and a lot of bug fixes: * Change macvtap to be based around a struct sock * macvtap: fix initialization * return 0 to netlink * don't use rcu for q->file and q->vlan pointers * macvtap: checkpatch.pl fixes * macvtap: fix tun IFF flags * Use a struct socket to make tx flow control work * disable

This is the third version of the macvtap device driver, following another major restructuring and a lot of bug fixes: * Change macvtap to be based around a struct sock * macvtap: fix initialization * return 0 to netlink * don't use rcu for q->file and q->vlan pointers * macvtap: checkpatch.pl fixes * macvtap: fix tun IFF flags * Use a struct socket to make tx flow control work * disable

This is the third version of the macvtap device driver, following another major restructuring and a lot of bug fixes: * Change macvtap to be based around a struct sock * macvtap: fix initialization * return 0 to netlink * don't use rcu for q->file and q->vlan pointers * macvtap: checkpatch.pl fixes * macvtap: fix tun IFF flags * Use a struct socket to make tx flow control work * disable

I did not get this ready for the merge window, but people asked what the status of this is so I'm posting it now to solicit feedback. The first patch just adds some hooks into macvlan.c and is less invasive than the previous version. That part should be fine and I'd like this to get merged into macvlan for 2.6.33 if people agree that the approach is right. The second patch adds the

I did not get this ready for the merge window, but people asked what the status of this is so I'm posting it now to solicit feedback. The first patch just adds some hooks into macvlan.c and is less invasive than the previous version. That part should be fine and I'd like this to get merged into macvlan for 2.6.33 if people agree that the approach is right. The second patch adds the

I did not get this ready for the merge window, but people asked what the status of this is so I'm posting it now to solicit feedback. The first patch just adds some hooks into macvlan.c and is less invasive than the previous version. That part should be fine and I'd like this to get merged into macvlan for 2.6.33 if people agree that the approach is right. The second patch adds the

Hi, This is a proof of concept of GPU forwarding for Linux guest on Linux host. I'd like to get comments and suggestions from community before I put more time on it. To summarize what it is: 1. It's a solution to bring GPU acceleration for Linux vm guest on Linux host. It could works with different GPU although the current proof of concept only works with Intel GPU. 2. The basic idea