[patch 2/4] mm: Dont forget to set softdirty on file mapped fault

From: Cyrill Gorcunov
Date: Mon Mar 24 2014 - 08:59:46 EST


Otherwise we may not notice that pte was softdirty.

CC: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
---
mm/memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6.git/mm/memory.c
===================================================================
--- linux-2.6.git.orig/mm/memory.c
+++ linux-2.6.git/mm/memory.c
@@ -3422,7 +3422,7 @@ static int __do_fault(struct mm_struct *
if (flags & FAULT_FLAG_WRITE)
entry = maybe_mkwrite(pte_mkdirty(entry), vma);
else if (pte_file(orig_pte) && pte_file_soft_dirty(orig_pte))
- pte_mksoft_dirty(entry);
+ entry = pte_mksoft_dirty(entry);
if (anon) {
inc_mm_counter_fast(mm, MM_ANONPAGES);
page_add_new_anon_rmap(page, vma, address);

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/