From: Andi Kleen <ak@suse.de>
To: jbeulich@novell.com, patches@x86-64.org,
linux-kernel@vger.kernel.org, stable@kernel.org
Subject: [PATCH 2.6.22] [1/5] i386: allow debuggers to access the vsyscall page with compat vDSO
Date: Wed, 15 Aug 2007 12:38:54 +0200 (CEST) [thread overview]
Message-ID: <20070815103854.450BB14F28@wotan.suse.de> (raw)
In-Reply-To: <200708151238.148026000@suse.de>
From: "Jan Beulich" <jbeulich@novell.com>
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
arch/i386/kernel/sysenter.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6.22-stable/arch/i386/kernel/sysenter.c
===================================================================
--- linux-2.6.22-stable.orig/arch/i386/kernel/sysenter.c
+++ linux-2.6.22-stable/arch/i386/kernel/sysenter.c
@@ -336,7 +336,9 @@ struct vm_area_struct *get_gate_vma(stru
int in_gate_area(struct task_struct *task, unsigned long addr)
{
- return 0;
+ const struct vm_area_struct *vma = get_gate_vma(task);
+
+ return vma && addr >= vma->vm_start && addr < vma->vm_end;
}
int in_gate_area_no_task(unsigned long addr)
next prev parent reply other threads:[~2007-08-15 10:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-15 10:38 [PATCH 2.6.22] [0/5] x86 updates for 2.6.22-stable Andi Kleen
2007-08-15 10:38 ` Andi Kleen [this message]
2007-08-15 10:38 ` [PATCH 2.6.22] [2/5] x86_64: Check for .cfi_rel_offset in CFI probe Andi Kleen
2007-08-15 10:38 ` [PATCH 2.6.22] [3/5] x86_64: Change PMDS invocation to single macro Andi Kleen
2007-08-15 10:38 ` [PATCH 2.6.22] [4/5] i386: Fix double fault handler Andi Kleen
2007-08-15 10:38 ` [PATCH 2.6.22] [5/5] i386: Handle P6s without performance counters in nmi watchdog Andi Kleen
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