[PATCH] page migration: handle freeing of pages in migrate_pages()

Do not leave pages on the lists passed to migrate_pages().  Seems that we will
not need any postprocessing of pages.  This will simplify the handling of
pages by the callers of migrate_pages().

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Jes Sorensen <jes@trained-monkey.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 7 deletions

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 8778f58880c4..244f3f130e4a 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -603,11 +603,8 @@ int migrate_to_node(struct mm_struct *mm, int source, int dest, int flags)
         check_range(mm, mm->mmap->vm_start, TASK_SIZE, &nmask,
                         flags | MPOL_MF_DISCONTIG_OK, &pagelist);
 
-        if (!list_empty(&pagelist)) {
+        if (!list_empty(&pagelist))
                 err = migrate_pages_to(&pagelist, NULL, dest);
-                if (!list_empty(&pagelist))
-                        putback_lru_pages(&pagelist);
-        }
         return err;
 }
 
@@ -773,9 +770,6 @@ long do_mbind(unsigned long start, unsigned long len,
                         err = -EIO;
         }
 
-        if (!list_empty(&pagelist))
-                putback_lru_pages(&pagelist);
-
         up_write(&mm->mmap_sem);
         mpol_free(new);
         return err;