RDMA/uverbs: Replace ib_uverbs_file with uverbs_attr_bundle for write

Now that we can add meta-data to the description of write() methods we
need to pass the uverbs_attr_bundle into all write based handlers so
future patches can use it as a container for any new data transferred out
of the core.

This is the first step to bringing the write() and ioctl() methods to a
common interface signature.

This is a simple search/replace, and we push the attr down into the uobj
and other APIs to keep changes minimal.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

drivers/infiniband/core/rdma_core.c

@@ -224,12 +224,14 @@ int uobj_destroy(struct ib_uobject *uobj)
  * uverbs_put_destroy.
  */
 struct ib_uobject *__uobj_get_destroy(const struct uverbs_api_object *obj,
-				      u32 id, struct ib_uverbs_file *ufile)
+				      u32 id,
+				      const struct uverbs_attr_bundle *attrs)
 {
 	struct ib_uobject *uobj;
 	int ret;
 
-	uobj = rdma_lookup_get_uobject(obj, ufile, id, UVERBS_LOOKUP_DESTROY);
+	uobj = rdma_lookup_get_uobject(obj, attrs->ufile, id,
+				       UVERBS_LOOKUP_DESTROY);
 	if (IS_ERR(uobj))
 		return uobj;
 
@@ -248,11 +250,12 @@ struct ib_uobject *__uobj_get_destroy(const struct uverbs_api_object *obj,
  * the uobj.
  */
 int __uobj_perform_destroy(const struct uverbs_api_object *obj, u32 id,
-			   struct ib_uverbs_file *ufile, int success_res)
+			   const struct uverbs_attr_bundle *attrs,
+			   int success_res)
 {
 	struct ib_uobject *uobj;
 
-	uobj = __uobj_get_destroy(obj, id, ufile);
+	uobj = __uobj_get_destroy(obj, id, attrs);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
 
@@ -267,7 +270,7 @@ static struct ib_uobject *alloc_uobj(struct ib_uverbs_file *ufile,
 	struct ib_uobject *uobj;
 	struct ib_ucontext *ucontext;
 
-	ucontext = ib_uverbs_get_ucontext(ufile);
+	ucontext = ib_uverbs_get_ucontext_file(ufile);
 	if (IS_ERR(ucontext))
 		return ERR_CAST(ucontext);
 

drivers/infiniband/core/rdma_core.h

@@ -137,10 +137,10 @@ struct uverbs_api_ioctl_method {
 };
 
 struct uverbs_api_write_method {
-	ssize_t (*handler)(struct ib_uverbs_file *file, const char __user *buf,
-			   int in_len, int out_len);
-	int (*handler_ex)(struct ib_uverbs_file *file, struct ib_udata *ucore,
-			  struct ib_udata *uhw);
+	ssize_t (*handler)(struct uverbs_attr_bundle *attrs,
+			   const char __user *buf, int in_len, int out_len);
+	int (*handler_ex)(struct uverbs_attr_bundle *attrs,
+			  struct ib_udata *ucore, struct ib_udata *uhw);
 	u8 disabled:1;
 	u8 is_ex:1;
 };