[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH v3 7/9] xen/gntdev: Add initial support for dma-buf UAPI





On 06/12/2018 09:41 AM, Oleksandr Andrushchenko wrote:

diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index a09db23e9663..e82660d81d7e 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -48,6 +48,9 @@
  #include <asm/xen/hypercall.h>
#include "gntdev-common.h"
+#ifdef CONFIG_XEN_GNTDEV_DMABUF
+#include "gntdev-dmabuf.h"
+#endif
MODULE_LICENSE("GPL");
  MODULE_AUTHOR("Derek G. Murray <Derek.Murray@xxxxxxxxxxxx>, "
@@ -566,6 +569,15 @@ static int gntdev_open(struct inode *inode, struct file 
*flip)
        INIT_LIST_HEAD(&priv->freeable_maps);
        mutex_init(&priv->lock);
+#ifdef CONFIG_XEN_GNTDEV_DMABUF
+       priv->dmabuf_priv = gntdev_dmabuf_init();
+       if (IS_ERR(priv->dmabuf_priv)) {
+               ret = PTR_ERR(priv->dmabuf_priv);
+               kfree(priv);
+               return ret;
+       }
+#endif
+
        if (use_ptemod) {
                priv->mm = get_task_mm(current);
                if (!priv->mm) {
@@ -616,8 +628,13 @@ static int gntdev_release(struct inode *inode, struct file 
*flip)
        WARN_ON(!list_empty(&priv->freeable_maps));
        mutex_unlock(&priv->lock);
+#ifdef CONFIG_XEN_GNTDEV_DMABUF
+       gntdev_dmabuf_fini(priv->dmabuf_priv);
+#endif
+
        if (use_ptemod)
                mmu_notifier_unregister(&priv->mn, priv->mm);
+
        kfree(priv);
        return 0;
  }
@@ -987,6 +1004,107 @@ static long gntdev_ioctl_grant_copy(struct gntdev_priv 
*priv, void __user *u)
        return ret;
  }
+#ifdef CONFIG_XEN_GNTDEV_DMABUF
+static long
+gntdev_ioctl_dmabuf_exp_from_refs(struct gntdev_priv *priv,
+                                 struct ioctl_gntdev_dmabuf_exp_from_refs 
__user *u)


Didn't we agree that this code moves to gntdev-dmabuf.c ?

-boris


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.