Displaying 7 results from an estimated 7 matches for "out_unlock_put".
2011 Mar 19
1
[patch 2/2] xen-gntdev: unlock on error path in gntdev_mmap()
...100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -662,7 +662,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
if (map->flags) {
if ((vma->vm_flags & VM_WRITE) &&
(map->flags & GNTMAP_readonly))
- return -EINVAL;
+ goto out_unlock_put;
} else {
map->flags = GNTMAP_host_map;
if (!(vma->vm_flags & VM_WRITE))
@@ -700,6 +700,8 @@ unlock_out:
spin_unlock(&priv->lock);
return err;
+out_unlock_put:
+ spin_unlock(&priv->lock);
out_put_map:
if (use_ptemod)
map->vma = NULL;
2011 Mar 19
1
[patch 2/2] xen-gntdev: unlock on error path in gntdev_mmap()
...100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -662,7 +662,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
if (map->flags) {
if ((vma->vm_flags & VM_WRITE) &&
(map->flags & GNTMAP_readonly))
- return -EINVAL;
+ goto out_unlock_put;
} else {
map->flags = GNTMAP_host_map;
if (!(vma->vm_flags & VM_WRITE))
@@ -700,6 +700,8 @@ unlock_out:
spin_unlock(&priv->lock);
return err;
+out_unlock_put:
+ spin_unlock(&priv->lock);
out_put_map:
if (use_ptemod)
map->vma = NULL;
2011 Mar 19
1
[patch 2/2] xen-gntdev: unlock on error path in gntdev_mmap()
...100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -662,7 +662,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
if (map->flags) {
if ((vma->vm_flags & VM_WRITE) &&
(map->flags & GNTMAP_readonly))
- return -EINVAL;
+ goto out_unlock_put;
} else {
map->flags = GNTMAP_host_map;
if (!(vma->vm_flags & VM_WRITE))
@@ -700,6 +700,8 @@ unlock_out:
spin_unlock(&priv->lock);
return err;
+out_unlock_put:
+ spin_unlock(&priv->lock);
out_put_map:
if (use_ptemod)
map->vma = NULL;
2019 Oct 30
0
[PATCH v2 09/15] xen/gntdev: use mmu_range_notifier_insert
...> map->flags |= GNTMAP_readonly;
> }
>
> + if (use_ptemod) {
> + map->vma = vma;
> + err = mmu_range_notifier_insert_locked(
> + &map->notifier, vma->vm_start,
> + vma->vm_end - vma->vm_start, vma->vm_mm);
> + if (err)
> + goto out_unlock_put;
> + }
> mutex_unlock(&priv->lock);
>
> + /*
> + * gntdev takes the address of the PTE in find_grant_ptes() and passes
> + * it to the hypervisor in gntdev_map_grant_pages(). The purpose of
> + * the notifier is to prevent the hypervisor pointer to the PTE from
&g...
2019 Oct 28
1
[PATCH v2 09/15] xen/gntdev: use mmu_range_notifier_insert
...ap(struct file *flip, struct vm_area_struct *vma)
map->flags |= GNTMAP_readonly;
}
+ if (use_ptemod) {
+ map->vma = vma;
+ err = mmu_range_notifier_insert_locked(
+ &map->notifier, vma->vm_start,
+ vma->vm_end - vma->vm_start, vma->vm_mm);
+ if (err)
+ goto out_unlock_put;
+ }
mutex_unlock(&priv->lock);
+ /*
+ * gntdev takes the address of the PTE in find_grant_ptes() and passes
+ * it to the hypervisor in gntdev_map_grant_pages(). The purpose of
+ * the notifier is to prevent the hypervisor pointer to the PTE from
+ * going stale.
+ *
+ * Since thi...
2019 Oct 28
32
[PATCH v2 00/15] Consolidate the mmu notifier interval_tree and locking
From: Jason Gunthorpe <jgg at mellanox.com>
8 of the mmu_notifier using drivers (i915_gem, radeon_mn, umem_odp, hfi1,
scif_dma, vhost, gntdev, hmm) drivers are using a common pattern where
they only use invalidate_range_start/end and immediately check the
invalidating range against some driver data structure to tell if the
driver is interested. Half of them use an interval_tree, the others
2019 Nov 12
20
[PATCH hmm v3 00/14] Consolidate the mmu notifier interval_tree and locking
From: Jason Gunthorpe <jgg at mellanox.com>
8 of the mmu_notifier using drivers (i915_gem, radeon_mn, umem_odp, hfi1,
scif_dma, vhost, gntdev, hmm) drivers are using a common pattern where
they only use invalidate_range_start/end and immediately check the
invalidating range against some driver data structure to tell if the
driver is interested. Half of them use an interval_tree, the others