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radix-tree: Add rcu_dereference and rcu_assign_pointer calls

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Some of these have been missing for many years.  Others were recently
introduced by me.  Fortunately, we have tools that help us find such
things.

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
This commit is contained in:
Matthew Wilcox 2017-02-13 15:22:48 -05:00
parent c0cdbf819c
commit 12320d0ff1
2 changed files with 16 additions and 12 deletions
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2
include/linux/radix-tree.h
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@ -561,7 +561,7 @@ radix_tree_next_slot(void **slot, struct radix_tree_iter *iter, unsigned flags)
return NULL;
found:
if (unlikely(radix_tree_is_internal_node(*slot)))
if (unlikely(radix_tree_is_internal_node(rcu_dereference_raw(*slot))))
return __radix_tree_next_slot(slot, iter, flags);
return slot;
}