locking/rwlocks: fix write_lock_nested for RT
Fix build break of write_lock_nested for RT.
Link: https://lkml.kernel.org/r/YZfrMTAXV56HFWJY@google.com
Signed-off-by: Minchan Kim <minchan@kernel.org>
Suggested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>