fs: move code out of buffer.c

Move invalidate_bdev, block_sync_page into fs/block_dev.c.  Export
kill_bdev as well, so brd doesn't have to open code it.  Reduce
buffer_head.h requirement accordingly.

Removed a rather large comment from invalidate_bdev, as it looked a bit
obsolete to bother moving.  The small comment replacing it says enough.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-09-16 02:31:11 -04:00
parent 94ea4158f1
commit ff01bb4832
28 changed files with 40 additions and 83 deletions

View file

@ -11,7 +11,6 @@
#include <linux/slab.h>
#include <linux/mount.h>
#include <linux/buffer_head.h>
#include "internal.h"
#define list_to_page(head) (list_entry((head)->prev, struct page, lru))