linux-kernel - [PATCH 11/20] tile: Do not call do

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Date:	Sat, 26 May 2012 00:04:27 +0200
From:	Richard Weinberger <richard@....at>
To:	linux-kernel@...r.kernel.org
Cc:	linux-arch@...r.kernel.org, Richard Weinberger <richard@....at>,
	Chris Metcalf <cmetcalf@...era.com>
Subject: [PATCH 11/20] tile: Do not call do_signal() with irqs disabled

get_signal_to_deliver() calls try_to_freeze() which might sleep.

Cc: Chris Metcalf <cmetcalf@...era.com>
Signed-off-by: Richard Weinberger <richard@....at>
---
 arch/tile/kernel/process.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index f572c19..911cb99 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -27,6 +27,7 @@
 #include <linux/kernel.h>
 #include <linux/tracehook.h>
 #include <linux/signal.h>
+#include <linux/irqflags.h>
 #include <asm/stack.h>
 #include <asm/switch_to.h>
 #include <asm/homecache.h>
@@ -548,6 +549,8 @@ struct task_struct *__sched _switch_to(struct task_struct *prev,
  */
 int do_work_pending(struct pt_regs *regs, u32 thread_info_flags)
 {
+	local_irq_enable();
+
 	/* If we enter in kernel mode, do nothing and exit the caller loop. */
 	if (!user_mode(regs))
 		return 0;
-- 
1.7.7.3

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