[PATCH] Some page migration fixups

- Remove sparse comment

- Remove duplicated include

- Return the correct error condition in migrate_page_remove_references().

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/mm/migrate.c b/mm/migrate.c
index 09f6e4a..20b95db 100644 (file)
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -16,8 +16,7 @@
 #include <linux/module.h>
 #include <linux/swap.h>
 #include <linux/pagemap.h>
-#include <linux/buffer_head.h> /* for try_to_release_page(),
-                                       buffer_heads_over_limit */
+#include <linux/buffer_head.h>
 #include <linux/mm_inline.h>
 #include <linux/pagevec.h>
 #include <linux/rmap.h>
@@ -28,8 +27,6 @@
 
 #include "internal.h"
 
-#include "internal.h"
-
 /* The maximum number of pages to take off the LRU for migration */
 #define MIGRATE_CHUNK_SIZE 256
 
@@ -234,7 +231,7 @@ int migrate_page_remove_references(struct page *newpage,
        if (!page_mapping(page) || page_count(page) != nr_refs ||
                        *radix_pointer != page) {
                write_unlock_irq(&mapping->tree_lock);
-               return 1;
+               return -EAGAIN;
        }
 
        /*