The patch titled
Subject: radix-tree: fix bug in radix_tree_iter_next() for tagged iteration
has been added to the -mm tree. Its filename is
radix-treeshmem-introduce-radix_tree_iter_next-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/radix-treeshmem-introduce-radix_tree_iter_next-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/radix-treeshmem-introduce-radix_tree_iter_next-fix.patch
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------------------------------------------------------
From: Konstantin Khlebnikov <koct9i@xxxxxxxxx>
Subject: radix-tree: fix bug in radix_tree_iter_next() for tagged iteration
Helper radix_tree_iter_next reset slot to NULL and next_index to index +
1, for tagger iteraction it also must reset cached tags in iterator to
abort next radix_tree_next_slot and go to slow-path into
radix_tree_next_chunk.
Signed-off-by: Konstantin Khlebnikov <koct9i@xxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/radix-tree.h | 1 +
1 file changed, 1 insertion(+)
diff -puN include/linux/radix-tree.h~radix-treeshmem-introduce-radix_tree_iter_next-fix include/linux/radix-tree.h
--- a/include/linux/radix-tree.h~radix-treeshmem-introduce-radix_tree_iter_next-fix
+++ a/include/linux/radix-tree.h
@@ -414,6 +414,7 @@ static inline __must_check
void **radix_tree_iter_next(struct radix_tree_iter *iter)
{
iter->next_index = iter->index + 1;
+ iter->tags = 0;
return NULL;
}
_
Patches currently in -mm which might be from koct9i@xxxxxxxxx are
tools-vm-page-typesc-add-memory-cgroup-dumping-and-filtering.patch
radix-treeshmem-introduce-radix_tree_iter_next-fix.patch
radix-tree-tests-fix-compilation.patch
radix-tree-tests-add-test-for-radix_tree_iter_next.patch
radix-tree-tests-add-regression3-test.patch
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