mm/migrate: Pass vm_fault pointer to migrate_misplaced_page()
migrate_misplaced_page() is only called during the page fault handling so
it's better to pass the pointer to the struct vm_fault instead of the vma.
This way during the speculative page fault path the saved vma->vm_flags
could be used.
Change-Id: I254a7c9d91dca9ee8a9afd5eccd6de9af5dc8bc0
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Patch-mainline: linux-mm @ Tue, 17 Apr 2018 16:33:19
[vinmenon@codeaurora.org: 4.9 porting changes]
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
diff --git a/mm/migrate.c b/mm/migrate.c
index 85ac806..595b456 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1855,7 +1855,7 @@
* node. Caller is expected to have an elevated reference count on
* the page that will be dropped by this function before returning.
*/
-int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma,
+int migrate_misplaced_page(struct page *page, struct fault_env *fe,
int node)
{
pg_data_t *pgdat = NODE_DATA(node);
@@ -1868,7 +1868,7 @@
* with execute permissions as they are probably shared libraries.
*/
if (page_mapcount(page) != 1 && page_is_file_cache(page) &&
- (vma->vm_flags & VM_EXEC))
+ (fe->vma_flags & VM_EXEC))
goto out;
/*