[BUGFIX][PATCH] flush icache before set_pte() in ia64 take7, [1/2]migration fix

From: KAMEZAWA Hiroyuki
Date: Tue Aug 07 2007 - 04:25:50 EST


In migration, a new page should be cache flushed before set_pte()
in some archs which have virtually-tagged cache..

V6 -> V7:
* adjusted against .2.6.23-rc2.

V5 -> V6:
* no changes (added new patches to the patch set)
V4 -> V5:
* changed flush_icache_page to flush_cache_page.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>

---
mm/migrate.c | 1 +
1 file changed, 1 insertion(+)

Index: linux-2.6.23-rc2.test/mm/migrate.c
===================================================================
--- linux-2.6.23-rc2.test.orig/mm/migrate.c
+++ linux-2.6.23-rc2.test/mm/migrate.c
@@ -171,6 +171,7 @@ static void remove_migration_pte(struct
pte = pte_mkold(mk_pte(new, vma->vm_page_prot));
if (is_write_migration_entry(entry))
pte = pte_mkwrite(pte);
+ flush_cache_page(vma, addr, pte_pfn(pte));
set_pte_at(mm, addr, ptep, pte);

if (PageAnon(new))

-
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/