[ARM] pass vma for flush_anon_page()

Since get_user_pages() may be used with processes other than the
current process and calls flush_anon_page(), flush_anon_page() has to
cope in some way with non-current processes.

It may not be appropriate, or even desirable to flush a region of
virtual memory cache in the current process when that is different to
the process that we want the flush to occur for.

Therefore, pass the vma into flush_anon_page() so that the architecture
can work out whether the 'vmaddr' is for the current process or not.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/mm/memory.c b/mm/memory.c
index 563792f4f68..af227d26e10 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1091,7 +1091,7 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
                         if (pages) {
                                 pages[i] = page;
 
-                                flush_anon_page(page, start);
+                                flush_anon_page(vma, page, start);
                                 flush_dcache_page(page);
                         }
                         if (vmas)