[PATCH 12/13] doc: Update whatisRCU.rst

["Uladzislau Rezki (Sony)" <urezki@gmail.com>]

The kfree_rcu() macro is deprecated. Rename it to the
kfree_rcu_mightsleep() in this documentation.

Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---
 Documentation/RCU/whatisRCU.rst | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/RCU/whatisRCU.rst b/Documentation/RCU/whatisRCU.rst
index 2c5563a91998..8eddef28d3a1 100644
--- a/Documentation/RCU/whatisRCU.rst
+++ b/Documentation/RCU/whatisRCU.rst
@@ -597,10 +597,10 @@ to avoid having to write your own callback::
 If the occasional sleep is permitted, the single-argument form may
 be used, omitting the rcu_head structure from struct foo.
 
-	kfree_rcu(old_fp);
+	kfree_rcu_mightsleep(old_fp);
 
-This variant of kfree_rcu() almost never blocks, but might do so by
-invoking synchronize_rcu() in response to memory-allocation failure.
+This variant almost never blocks, but might do so by invoking
+synchronize_rcu() in response to memory-allocation failure.
 
 Again, see checklist.rst for additional rules governing the use of RCU.
 
-- 
2.30.2