get rid of block_write_begin_newtrunc

Move the call to vmtruncate to get rid of accessive blocks to the callers
in preparation of the new truncate sequence and rename the non-truncating
version to block_write_begin.

While we're at it also remove several unused arguments to block_write_begin.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 6 deletions

diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index accc9f81bb63..3f69054f86d9 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -203,12 +203,8 @@ int block_write_full_page_endio(struct page *page, get_block_t *get_block,
 int block_read_full_page(struct page*, get_block_t*);
 int block_is_partially_uptodate(struct page *page, read_descriptor_t *desc,
                                 unsigned long from);
-int block_write_begin_newtrunc(struct file *, struct address_space *,
-                                loff_t, unsigned, unsigned,
-                                struct page **, void **, get_block_t*);
-int block_write_begin(struct file *, struct address_space *,
-                                loff_t, unsigned, unsigned,
-                                struct page **, void **, get_block_t*);
+int block_write_begin(struct address_space *mapping, loff_t pos, unsigned len,
+                unsigned flags, struct page **pagep, get_block_t *get_block);
 int __block_write_begin(struct page *page, loff_t pos, unsigned len,
                 get_block_t *get_block);
 int block_write_end(struct file *, struct address_space *,