Am 09.10.20 um 17:14 schrieb Jason Gunthorpe:
On Fri, Oct 09, 2020 at 05:03:38PM +0200, Christian König wrote:
+/*
+ * Change backing file, only valid to use during initial VMA setup.
+ */
+void vma_set_file(struct vm_area_struct *vma, struct file *file)
+{
+ if (file)
+
On Fri, Oct 09, 2020 at 05:03:38PM +0200, Christian König wrote:
> +/*
> + * Change backing file, only valid to use during initial VMA setup.
> + */
> +void vma_set_file(struct vm_area_struct *vma, struct file *file)
> +{
> + if (file)
> + get_file(file);
> +
> +
Add the new vma_set_file() function to allow changing
vma->vm_file with the necessary refcount dance.
v2: add more users of this.
v3: add missing EXPORT_SYMBOL, rebase on mmap cleanup,
add comments why we drop the reference on two occasions.
Signed-off-by: Christian König
Reviewed-by:
