[PATCH] cleanup write_one_page

Remove writeout_one_page(), waitfor_one_page() and the now-unused
generic_buffer_fdatasync().

Add new

	write_one_page(struct page *page, int wait)

which is exported to modules.  Update callers to use that.  It's only
used for IS_SYNC operations.

1 files changed, 0 insertions, 43 deletions

diff --git a/fs/buffer.c b/fs/buffer.c
index fd4393201bd0..aa9dba564280 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1891,49 +1891,6 @@ int block_write_full_page(struct page *page, get_block_t *get_block)
 	return __block_write_full_page(inode, page, get_block);
 }
 
-/*
- * Commence writeout of all the buffers against a page.  The
- * page must be locked.   Returns zero on success or a negative
- * errno.
- */
-int writeout_one_page(struct page *page)
-{
-	struct buffer_head * const head = page_buffers(page);
-	struct buffer_head *arr[MAX_BUF_PER_PAGE];
-	struct buffer_head *bh;
-	int nr = 0;
-	BUG_ON(!PageLocked(page));
-	bh = head;
-	do {
-		if (!buffer_locked(bh) && buffer_dirty(bh) &&
-				buffer_mapped(bh) && buffer_uptodate(bh))
-			arr[nr++] = bh;
-	} while ((bh = bh->b_this_page) != head);
-	if (nr)
-		ll_rw_block(WRITE, nr, arr);	
-	return 0;
-}
-EXPORT_SYMBOL(writeout_one_page);
-
-/*
- * Wait for completion of I/O of all buffers against a page.  The page
- * must be locked.  Returns zero on success or a negative errno.
- */
-int waitfor_one_page(struct page *page)
-{
-	int error = 0;
-	struct buffer_head *bh, *head = page_buffers(page);
-
-	bh = head;
-	do {
-		wait_on_buffer(bh);
-		if (buffer_req(bh) && !buffer_uptodate(bh))
-			error = -EIO;
-	} while ((bh = bh->b_this_page) != head);
-	return error;
-}
-EXPORT_SYMBOL(waitfor_one_page);
-
 sector_t generic_block_bmap(struct address_space *mapping, sector_t block,
 			    get_block_t *get_block)
 {