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Diffstat (limited to 'drivers/infiniband/core/umem_rbtree.c')
-rw-r--r--drivers/infiniband/core/umem_rbtree.c109
1 files changed, 0 insertions, 109 deletions
diff --git a/drivers/infiniband/core/umem_rbtree.c b/drivers/infiniband/core/umem_rbtree.c
deleted file mode 100644
index fc801920e341..000000000000
--- a/drivers/infiniband/core/umem_rbtree.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright (c) 2014 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/interval_tree_generic.h>
-#include <linux/sched.h>
-#include <linux/gfp.h>
-#include <rdma/ib_umem_odp.h>
-
-/*
- * The ib_umem list keeps track of memory regions for which the HW
- * device request to receive notification when the related memory
- * mapping is changed.
- *
- * ib_umem_lock protects the list.
- */
-
-static inline u64 node_start(struct umem_odp_node *n)
-{
- struct ib_umem_odp *umem_odp =
- container_of(n, struct ib_umem_odp, interval_tree);
-
- return ib_umem_start(umem_odp->umem);
-}
-
-/* Note that the representation of the intervals in the interval tree
- * considers the ending point as contained in the interval, while the
- * function ib_umem_end returns the first address which is not contained
- * in the umem.
- */
-static inline u64 node_last(struct umem_odp_node *n)
-{
- struct ib_umem_odp *umem_odp =
- container_of(n, struct ib_umem_odp, interval_tree);
-
- return ib_umem_end(umem_odp->umem) - 1;
-}
-
-INTERVAL_TREE_DEFINE(struct umem_odp_node, rb, u64, __subtree_last,
- node_start, node_last, , rbt_ib_umem)
-
-/* @last is not a part of the interval. See comment for function
- * node_last.
- */
-int rbt_ib_umem_for_each_in_range(struct rb_root_cached *root,
- u64 start, u64 last,
- umem_call_back cb,
- void *cookie)
-{
- int ret_val = 0;
- struct umem_odp_node *node, *next;
- struct ib_umem_odp *umem;
-
- if (unlikely(start == last))
- return ret_val;
-
- for (node = rbt_ib_umem_iter_first(root, start, last - 1);
- node; node = next) {
- next = rbt_ib_umem_iter_next(node, start, last - 1);
- umem = container_of(node, struct ib_umem_odp, interval_tree);
- ret_val = cb(umem->umem, start, last, cookie) || ret_val;
- }
-
- return ret_val;
-}
-EXPORT_SYMBOL(rbt_ib_umem_for_each_in_range);
-
-struct ib_umem_odp *rbt_ib_umem_lookup(struct rb_root_cached *root,
- u64 addr, u64 length)
-{
- struct umem_odp_node *node;
-
- node = rbt_ib_umem_iter_first(root, addr, addr + length - 1);
- if (node)
- return container_of(node, struct ib_umem_odp, interval_tree);
- return NULL;
-
-}
-EXPORT_SYMBOL(rbt_ib_umem_lookup);