From 9bf6ffdabdd6e70a0b69d032a0aff091afe1773e Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 26 Aug 2016 15:06:04 +0200 Subject: [PATCH 1/2] locking/atomic, arch/sh: Fix ATOMIC_FETCH_OP() We cannot use the "z" constraint twice, since its a single register (r0). Change the one not used by movli.l/movco.l to "r". Reported-by: Fengguang Wu Tested-by: Fengguang Wu Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Rich Felker Cc: Thomas Gleixner Cc: Yoshinori Sato Signed-off-by: Ingo Molnar --- arch/sh/include/asm/atomic-llsc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/include/asm/atomic-llsc.h b/arch/sh/include/asm/atomic-llsc.h index caea2c45f6c2..1d159ce50f5a 100644 --- a/arch/sh/include/asm/atomic-llsc.h +++ b/arch/sh/include/asm/atomic-llsc.h @@ -60,7 +60,7 @@ static inline int atomic_fetch_##op(int i, atomic_t *v) \ " movco.l %0, @%3 \n" \ " bf 1b \n" \ " synco \n" \ - : "=&z" (temp), "=&z" (res) \ + : "=&z" (temp), "=&r" (res) \ : "r" (i), "r" (&v->counter) \ : "t"); \ \ From 96b03ab86d843524ec4aed7fe0ceef412c684c68 Mon Sep 17 00:00:00 2001 From: Vivien Didelot Date: Thu, 22 Sep 2016 16:55:13 -0400 Subject: [PATCH 2/2] locking/hung_task: Fix typo in CONFIG_DETECT_HUNG_TASK help text Fix the indefinitiley -> indefinitely typo in Kconfig.debug. Signed-off-by: Vivien Didelot Cc: Andrew Morton Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160922205513.17821-1-vivien.didelot@savoirfairelinux.com Signed-off-by: Ingo Molnar --- lib/Kconfig.debug | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 2e2cca509231..cab7405f48d2 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -821,7 +821,7 @@ config DETECT_HUNG_TASK help Say Y here to enable the kernel to detect "hung tasks", which are bugs that cause the task to be stuck in - uninterruptible "D" state indefinitiley. + uninterruptible "D" state indefinitely. When a hung task is detected, the kernel will print the current stack trace (which you should report), but the