Re: FAILED: patch "[PATCH] mm: /proc/pid/pagemap: inspect _PAGE_SOFT_DIRTY only on" failed to apply to 3.11-stable tree

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On Wed, Oct 30, 2013 at 11:45:21AM -0700, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
> 
> The patch below does not apply to the 3.11-stable tree.
> If someone wants it applied there, or to any other stable or longterm
> tree, then please email the backport, including the original git commit
> id to <stable@xxxxxxxxxxxxxxx>.

Like this?
---
From: Cyrill Gorcunov <gorcunov@xxxxxxxxx>
Subject: [PATCH] mm: /proc/pid/pagemap: inspect _PAGE_SOFT_DIRTY only on present pages

If a page we are inspecting is in swap we may occasionally report it as
having soft dirty bit (even if it is clean).  The pte_soft_dirty helper
should be called on present pte only.

Backport of e9cdd6e771580e6ff872e5c64e8b766972c7d1bc

Signed-off-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
---
 fs/proc/task_mmu.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6.git/fs/proc/task_mmu.c
===================================================================
--- linux-2.6.git.orig/fs/proc/task_mmu.c
+++ linux-2.6.git/fs/proc/task_mmu.c
@@ -938,6 +938,8 @@ static void pte_to_pagemap_entry(pagemap
 		frame = pte_pfn(pte);
 		flags = PM_PRESENT;
 		page = vm_normal_page(vma, addr, pte);
+		if (pte_soft_dirty(pte))
+			flags2 |= __PM_SOFT_DIRTY;
 	} else if (is_swap_pte(pte)) {
 		swp_entry_t entry;
 		if (pte_swp_soft_dirty(pte))
@@ -955,8 +957,6 @@ static void pte_to_pagemap_entry(pagemap
 
 	if (page && !PageAnon(page))
 		flags |= PM_FILE;
-	if (pte_soft_dirty(pte))
-		flags2 |= __PM_SOFT_DIRTY;
 
 	*pme = make_pme(PM_PFRAME(frame) | PM_STATUS2(pm->v2, flags2) | flags);
 }
--
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