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From: Anton Ivanov <aivanov@brocade.com>
To: user-mode-linux-devel@lists.sourceforge.net
Cc: Anton Ivanov <aivanov@brocade.com>
Subject: [uml-devel] [PATCH 2/3] Errata: HR Timer subsystem
Date: Fri, 20 Nov 2015 16:45:14 +0000	[thread overview]
Message-ID: <1448037915-921549-2-git-send-email-aivanov@brocade.com> (raw)
In-Reply-To: <1448037915-921549-1-git-send-email-aivanov@brocade.com>

The signals should be restored to their pre-off state
not turned on.

Signed-off-by: Anton Ivanov <aivanov@brocade.com>
---
 arch/um/kernel/skas/mmu.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 9591a66..a845de6 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -53,6 +53,7 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm)
 	struct mm_context *to_mm = &mm->context;
 	unsigned long stack = 0;
 	int ret = -ENOMEM;
+    unsigned long int flags;
 
 	stack = get_zeroed_page(GFP_KERNEL);
 	if (stack == 0)
@@ -62,12 +63,12 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm)
 	if (current->mm != NULL && current->mm != &init_mm)
 		from_mm = &current->mm->context;
 
-	block_signals();
+	local_irq_save(flags);
 	if (from_mm)
 		to_mm->id.u.pid = copy_context_skas0(stack,
 						     from_mm->id.u.pid);
 	else to_mm->id.u.pid = start_userspace(stack);
-	unblock_signals();
+    local_irq_restore(flags);
 
 	if (to_mm->id.u.pid < 0) {
 		ret = to_mm->id.u.pid;
-- 
2.1.4


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  reply	other threads:[~2015-11-20 16:45 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-20 16:45 [uml-devel] [PATCH 1/3] IRQ Reentrancy guard Anton Ivanov
2015-11-20 16:45 ` Anton Ivanov [this message]
2015-11-20 18:12   ` [uml-devel] [PATCH 2/3] Errata: HR Timer subsystem Anton Ivanov
2015-11-20 16:45 ` [uml-devel] [PATCH 3/3] Signal handling cleanup Anton Ivanov

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