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Message-Id: <20190128155924.51521-105-sashal@kernel.org>
Date: Mon, 28 Jan 2019 10:56:51 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Bart Van Assche <bvanassche@....org>,
Thomas Gleixner <tglx@...utronix.de>, peterz@...radead.org,
tj@...nel.org, johannes.berg@...el.com,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.19 105/258] timekeeping: Use proper seqcount initializer
From: Bart Van Assche <bvanassche@....org>
[ Upstream commit ce10a5b3954f2514af726beb78ed8d7350c5e41c ]
tk_core.seq is initialized open coded, but that misses to initialize the
lockdep map when lockdep is enabled. Lockdep splats involving tk_core seq
consequently lack a name and are hard to read.
Use the proper initializer which takes care of the lockdep map
initialization.
[ tglx: Massaged changelog ]
Signed-off-by: Bart Van Assche <bvanassche@....org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: peterz@...radead.org
Cc: tj@...nel.org
Cc: johannes.berg@...el.com
Link: https://lkml.kernel.org/r/20181128234325.110011-12-bvanassche@acm.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
kernel/time/timekeeping.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index f3b22f456fac..7846ce24ecc0 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -50,7 +50,9 @@ enum timekeeping_adv_mode {
static struct {
seqcount_t seq;
struct timekeeper timekeeper;
-} tk_core ____cacheline_aligned;
+} tk_core ____cacheline_aligned = {
+ .seq = SEQCNT_ZERO(tk_core.seq),
+};
static DEFINE_RAW_SPINLOCK(timekeeper_lock);
static struct timekeeper shadow_timekeeper;
--
2.19.1
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