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authorJeff Garzik <jeff@garzik.org>2006-03-24 09:24:04 -0500
committerJeff Garzik <jeff@garzik.org>2006-03-24 09:24:04 -0500
commit11ed56fb7899f9eb9eaef8e5919db1bf08f1b07e (patch)
treeb01421cb139b11065d776ed361a7a12b3a1aecc9 /fs/buffer.c
parent54da9a3968448681d0ddf193ec90f2480c5cba1c (diff)
parent2cc432eed0491df66e14b578139bba2c75fb3f9a (diff)
Merge branch 'upstream'
Conflicts: drivers/scsi/sata_vsc.c
Diffstat (limited to 'fs/buffer.c')
-rw-r--r--fs/buffer.c60
1 files changed, 0 insertions, 60 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index 62cfd17dc5fe..1d3683d496f8 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3051,66 +3051,6 @@ asmlinkage long sys_bdflush(int func, long data)
}
/*
- * Migration function for pages with buffers. This function can only be used
- * if the underlying filesystem guarantees that no other references to "page"
- * exist.
- */
-#ifdef CONFIG_MIGRATION
-int buffer_migrate_page(struct page *newpage, struct page *page)
-{
- struct address_space *mapping = page->mapping;
- struct buffer_head *bh, *head;
-
- if (!mapping)
- return -EAGAIN;
-
- if (!page_has_buffers(page))
- return migrate_page(newpage, page);
-
- head = page_buffers(page);
-
- if (migrate_page_remove_references(newpage, page, 3))
- return -EAGAIN;
-
- bh = head;
- do {
- get_bh(bh);
- lock_buffer(bh);
- bh = bh->b_this_page;
-
- } while (bh != head);
-
- ClearPagePrivate(page);
- set_page_private(newpage, page_private(page));
- set_page_private(page, 0);
- put_page(page);
- get_page(newpage);
-
- bh = head;
- do {
- set_bh_page(bh, newpage, bh_offset(bh));
- bh = bh->b_this_page;
-
- } while (bh != head);
-
- SetPagePrivate(newpage);
-
- migrate_page_copy(newpage, page);
-
- bh = head;
- do {
- unlock_buffer(bh);
- put_bh(bh);
- bh = bh->b_this_page;
-
- } while (bh != head);
-
- return 0;
-}
-EXPORT_SYMBOL(buffer_migrate_page);
-#endif
-
-/*
* Buffer-head allocation
*/
static kmem_cache_t *bh_cachep;