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radix tree: Remove radix_tree_iter_find
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This API is unsafe to use under the RCU lock.  With no in-tree users
remaining, remove it to prevent future bugs.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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Matthew Wilcox (Oracle) committed Nov 2, 2019
1 parent 5a74ac4 commit 797060e
Showing 1 changed file with 0 additions and 18 deletions.
18 changes: 0 additions & 18 deletions include/linux/radix-tree.h
Original file line number Diff line number Diff line change
Expand Up @@ -315,24 +315,6 @@ radix_tree_iter_lookup(const struct radix_tree_root *root,
return radix_tree_next_chunk(root, iter, RADIX_TREE_ITER_CONTIG);
}

/**
* radix_tree_iter_find - find a present entry
* @root: radix tree root
* @iter: iterator state
* @index: start location
*
* This function returns the slot containing the entry with the lowest index
* which is at least @index. If @index is larger than any present entry, this
* function returns NULL. The @iter is updated to describe the entry found.
*/
static inline void __rcu **
radix_tree_iter_find(const struct radix_tree_root *root,
struct radix_tree_iter *iter, unsigned long index)
{
radix_tree_iter_init(iter, index);
return radix_tree_next_chunk(root, iter, 0);
}

/**
* radix_tree_iter_retry - retry this chunk of the iteration
* @iter: iterator state
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