On Wed, Mar 11, 2020 at 05:59:19PM -0700, Andrew Morton wrote: > hm, it's hard to get excited over this. Open-coding the > refcount_dec_and_lock_irqsave() internals at a callsite in order to > make sparse happy. > > Is there some other way, using __acquires (for example)? sparse is really bad at conditional lock acquisition. we have similar problems over the vfs. but we shouldn't be obfuscating our code to make the tool happy.