Hi, Can someone explain what the (consistent) usage of '!' does in this file? This is the only file in Documentation/ that uses this syntax. E.g.: > diff --git a/Documentation/mm/process_addrs.rst b/Documentation/mm/process_addrs.rst > index 81417fa2ed20..92cf497a9e3c 100644 > --- a/Documentation/mm/process_addrs.rst > +++ b/Documentation/mm/process_addrs.rst > @@ -716,7 +716,11 @@ calls :c:func:`!rcu_read_lock` to ensure that the VMA is looked up in an RCU > critical section, then attempts to VMA lock it via :c:func:`!vma_start_read`, > before releasing the RCU lock via :c:func:`!rcu_read_unlock`. > > -VMA read locks hold the read lock on the :c:member:`!vma->vm_lock` semaphore for > +In cases when the user already holds mmap read lock, :c:func:`!vma_start_read_locked` > +and :c:func:`!vma_start_read_locked_nested` can be used. These functions always > +succeed in acquiring VMA read lock. thanks. -- ~Randy
