The patch titled
mm: move_pages: no need to set pp->page to ZERO_PAGE(0) by default
has been added to the -mm tree. Its filename is
mm-move_pages-no-need-to-set-pp-page-to-zero_page0-by-default.patch
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------------------------------------------------------
Subject: mm: move_pages: no need to set pp->page to ZERO_PAGE(0) by default
From: Brice Goglin <Brice.Goglin@xxxxxxxx>
pp->page is never used when not set to the right page, so there is no need
to set it to ZERO_PAGE(0) by default.
Signed-off-by: Brice Goglin <Brice.Goglin@xxxxxxxx>
Acked-by: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Cc: Nick Piggin <nickpiggin@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/migrate.c | 6 ------
1 file changed, 6 deletions(-)
diff -puN mm/migrate.c~mm-move_pages-no-need-to-set-pp-page-to-zero_page0-by-default mm/migrate.c
--- a/mm/migrate.c~mm-move_pages-no-need-to-set-pp-page-to-zero_page0-by-default
+++ a/mm/migrate.c
@@ -846,12 +846,6 @@ static int do_move_page_to_node_array(st
struct vm_area_struct *vma;
struct page *page;
- /*
- * A valid page pointer that will not match any of the
- * pages that will be moved.
- */
- pp->page = ZERO_PAGE(0);
-
err = -EFAULT;
vma = find_vma(mm, pp->addr);
if (!vma || !vma_migratable(vma))
_
Patches currently in -mm which might be from Brice.Goglin@xxxxxxxx are
mm-stop-returning-enoent-from-sys_move_pages-if-nothing-got-migrated.patch
mm-dont-vmalloc-a-huge-page_to_node-array-for-do_pages_stat.patch
mm-extract-do_pages_move-out-of-sys_move_pages.patch
mm-rework-do_pages_move-to-work-on-page_sized-chunks.patch
mm-move_pages-no-need-to-set-pp-page-to-zero_page0-by-default.patch
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