| From 49faecbc581de038b423d7abbebe0d7b50ed15ef Mon Sep 17 00:00:00 2001 |
| From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| Date: Mon, 8 Apr 2013 16:08:46 +0200 |
| Subject: [PATCH] percpu-rwsem: compile fix |
| |
| The shortcut on mainline skip lockdep. No idea why this is a good thing. |
| |
| Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| --- |
| lib/percpu-rwsem.c | 4 ++++ |
| 1 file changed, 4 insertions(+) |
| |
| --- a/lib/percpu-rwsem.c |
| +++ b/lib/percpu-rwsem.c |
| @@ -84,8 +84,12 @@ void percpu_down_read(struct percpu_rw_s |
| |
| down_read(&brw->rw_sem); |
| atomic_inc(&brw->slow_read_ctr); |
| +#ifdef CONFIG_PREEMPT_RT_FULL |
| + up_read(&brw->rw_sem); |
| +#else |
| /* avoid up_read()->rwsem_release() */ |
| __up_read(&brw->rw_sem); |
| +#endif |
| } |
| |
| void percpu_up_read(struct percpu_rw_semaphore *brw) |
