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radix tree: Remove radix_tree_iter_find 

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>
This commit is contained in:
Matthew Wilcox (Oracle) 2019-11-01 22:21:54 -04:00
parent 5a74ac4c4a
commit 797060ec42
1 changed files with 0 additions and 18 deletions
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18
include/linux/radix-tree.h
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@ -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