[PATCH v2] lib: radix_tree: Fix error in docs about locks

[Adam Barth <aurorean@gmail.com>]

This text refers to the "first 7 functions", which was correct when
written but became incorrect when Johannes Weiner added another function
to the list in 139e561660fe ("lib: radix_tree: tree node interface").

Remove the sentence because it doesn't add any additional information
and would need to be updated each time the list changes.

Signed-off-by: Adam Barth <aurorean@gmail.com>
---
Changes in v2:
  - Removed the sentence entirely, as suggested by derRichard.

 include/linux/radix-tree.h | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h
index 33170db..204aa02 100644
--- a/include/linux/radix-tree.h
+++ b/include/linux/radix-tree.h
@@ -154,10 +154,9 @@ do {									\
  * radix_tree_gang_lookup_tag_slot
  * radix_tree_tagged
  *
- * The first 7 functions are able to be called locklessly, using RCU. The
- * caller must ensure calls to these functions are made within rcu_read_lock()
- * regions. Other readers (lock-free or otherwise) and modifications may be
- * running concurrently.
+ * The caller must ensure calls to these functions (other than
+ * radix_tree_tagged) are made within rcu_read_lock() regions. Other readers
+ * (lock-free or otherwise) and modifications may be running concurrently.
  *
  * It is still required that the caller manage the synchronization and lifetimes
  * of the items. So if RCU lock-free lookups are used, typically this would mean
-- 
1.9.1