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From: Roland McGrath <roland@redhat.com>
To: Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 2/11] Fix gate_vma.vm_flags
Date: Sat, 13 Jan 2007 21:33:06 -0800 (PST)	[thread overview]
Message-ID: <20070114053306.059051800E5@magilla.sf.frob.com> (raw)
In-Reply-To: Roland McGrath's message of  Saturday, 13 January 2007 21:31:39 -0800 <20070114053140.351701800E5@magilla.sf.frob.com>


This patch fixes the initialization of gate_vma.vm_flags and
gate_vma.vm_page_prot to reflect reality.  This makes the "[vdso]" line in
/proc/PID/maps correctly show r-xp instead of ---p, when gate_vma is used
(CONFIG_COMPAT_VDSO on i386).

Signed-off-by: Roland McGrath <roland@redhat.com>
---
 mm/memory.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index af227d2..5beb4b8 100644  
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2606,8 +2606,8 @@ static int __init gate_vma_init(void)
 	gate_vma.vm_mm = NULL;
 	gate_vma.vm_start = FIXADDR_USER_START;
 	gate_vma.vm_end = FIXADDR_USER_END;
-	gate_vma.vm_page_prot = PAGE_READONLY;
-	gate_vma.vm_flags = 0;
+	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
+	gate_vma.vm_page_prot = __P101;
 	return 0;
 }
 __initcall(gate_vma_init);

  reply	other threads:[~2007-01-14  5:33 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-14  5:31 [PATCH 1/11] Fix CONFIG_COMPAT_VDSO Roland McGrath
2007-01-14  5:33 ` Roland McGrath [this message]
2007-01-14  5:33 ` [PATCH 3/11] Add VM_ALWAYSDUMP Roland McGrath
2007-01-14  5:34 ` [PATCH 4/11] i386 vDSO: use VM_ALWAYSDUMP Roland McGrath
2007-01-23 19:48   ` Andrew Morton
2007-01-23 19:57     ` Linus Torvalds
2007-01-23 20:11       ` Roland McGrath
2007-01-23 19:57     ` Roland McGrath
2007-01-14  5:34 ` [PATCH 5/11] x86_64 ia32 " Roland McGrath
2007-01-14  5:35 ` [PATCH 6/11] powerpc " Roland McGrath
2007-01-14  5:36 ` [PATCH 7/11] x86_64 ia32 vDSO: define arch_vma_name Roland McGrath
2007-01-14  5:36 ` [PATCH 8/11] Add install_special_mapping Roland McGrath
2007-01-14  5:36 ` [PATCH 9/11] i386 vDSO: use install_special_mapping Roland McGrath
2007-01-14  5:37 ` [PATCH 10/11] x86_64 ia32 " Roland McGrath
2007-01-14  5:37 ` [PATCH 11/11] powerpc " Roland McGrath
2007-01-17  8:49 ` [PATCH 1/11] Fix CONFIG_COMPAT_VDSO Ingo Molnar
2007-01-17  9:03   ` Roland McGrath
2007-01-24 10:25     ` Paul Mundt

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