docs: fix title underlines in refcount-vs-atomic.rst

Fix title underlines for newly updated refcount-vs-atomic.rst

Link: https://lkml.kernel.org/r/20250217161645.3137927-1-surenb@google.com
Fixes: 03b412c8b184 ("refcount: provide ops for cases when object's memory can be reused")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Klara Modin <klarasmodin@gmail.com>
Cc: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Lokesh Gidra <lokeshgidra@google.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Mateusz Guzik <mjguzik@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Minchan Kim <minchan@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: "Paul E . McKenney" <paulmck@kernel.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Shivank Garg <shivankg@amd.com>
Cc: Sourav Panda <souravpanda@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/Documentation/core-api/refcount-vs-atomic.rst b/Documentation/core-api/refcount-vs-atomic.rst
index 9551a7bbfd382a5f4974cd3860a7a358e0ed57e2..94e628c1eb4975ed903d6c2140f6b5f4b6431978 100644 (file)
--- a/Documentation/core-api/refcount-vs-atomic.rst
+++ b/Documentation/core-api/refcount-vs-atomic.rst
@@ -87,7 +87,7 @@ Memory ordering guarantee changes:
 
 
 case 2) - non-"Read/Modify/Write" (RMW) ops with release ordering
--------------------------------------------
+-----------------------------------------------------------------
 
 Function changes:
 
@@ -139,7 +139,7 @@ Memory ordering guarantees changes:
 
 
 case 6) - increment-based RMW ops with acquire ordering that return a value
------------------------------------------------------
+---------------------------------------------------------------------------
 
 Function changes: