[Suspend2][ 04/13] [Suspend2] Follow page routine.

[Nigel Cunningham <nigel@suspend2.net>]

This variant of the follow page routine is used by Suspend2 to find
existing pages that belong to a process without changing anything in the
process.

Signed-off-by: Nigel Cunningham <nigel@suspend2.net>

 mm/memory.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index 0ec7bc6..1021043 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -958,6 +958,15 @@ no_page_table:
 	return page;
 }
 
+/*
+ * We want the address of the page for Suspend2 to mark as being in pageset1. 
+ */
+
+struct page *suspend2_follow_page(struct mm_struct *mm, unsigned long address)
+{
+	return follow_page(mm->mmap, address, 0);
+}
+
 int get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 		unsigned long start, int len, int write, int force,
 		struct page **pages, struct vm_area_struct **vmas)

--
Nigel Cunningham		nigel at suspend2 dot net
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/