From 3609c471a1b86bffc812d8a2f0299892aa11a5e6 Mon Sep 17 00:00:00 2001
From: Michael Lyle <mlyle@lyle.org>
Date: Tue, 9 Jan 2018 11:13:23 -0800
Subject: [PATCH] bcache: closures: move control bits one bit right
Git-commit: 3609c471a1b86bffc812d8a2f0299892aa11a5e6
Patch-mainline: v4.16-rc1
References: bsc#1093023
Otherwise, architectures that do negated adds of atomics (e.g. s390)
to do atomic_sub fail in closure_set_stopped.
Signed-off-by: Michael Lyle <mlyle@lyle.org>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Coly Li <colyli@suse.de>
---
drivers/md/bcache/closure.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
index 392a87cf1b92..3b9dfc9962ad 100644
--- a/drivers/md/bcache/closure.h
+++ b/drivers/md/bcache/closure.h
@@ -127,10 +127,10 @@ enum closure_state {
* annotate where references are being transferred.
*/
- CLOSURE_BITS_START = (1U << 27),
- CLOSURE_DESTRUCTOR = (1U << 27),
- CLOSURE_WAITING = (1U << 29),
- CLOSURE_RUNNING = (1U << 31),
+ CLOSURE_BITS_START = (1U << 26),
+ CLOSURE_DESTRUCTOR = (1U << 26),
+ CLOSURE_WAITING = (1U << 28),
+ CLOSURE_RUNNING = (1U << 30),
};
#define CLOSURE_GUARD_MASK \
--
2.16.3