get rid of nobh_write_begin_newtrunc

[mirror_ubuntu-hirsute-kernel.git] / fs / buffer.c

diff --git a/fs/buffer.c b/fs/buffer.c
index d54812b198e9d968007e407448a898cbc83fddb9..559daf76bca44a88f32c442a0422ba0c3f1bc091 100644 (file)
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2510,11 +2510,11 @@ static void attach_nobh_buffers(struct page *page, struct buffer_head *head)
 }
 
 /*
- * Filesystems implementing the new truncate sequence should use the
- * _newtrunc postfix variant which won't incorrectly call vmtruncate.
+ * On entry, the page is fully not uptodate.
+ * On exit the page is fully uptodate in the areas outside (from,to)
  * The filesystem needs to handle block truncation upon failure.
  */
-int nobh_write_begin_newtrunc(struct file *file, struct address_space *mapping,
+int nobh_write_begin(struct address_space *mapping,
                        loff_t pos, unsigned len, unsigned flags,
                        struct page **pagep, void **fsdata,
                        get_block_t *get_block)
@@ -2547,7 +2547,7 @@ int nobh_write_begin_newtrunc(struct file *file, struct address_space *mapping,
                unlock_page(page);
                page_cache_release(page);
                *pagep = NULL;
-               return block_write_begin_newtrunc(file, mapping, pos, len,
+               return block_write_begin_newtrunc(NULL, mapping, pos, len,
                                        flags, pagep, fsdata, get_block);
        }
 
@@ -2654,35 +2654,6 @@ out_release:
 
        return ret;
 }
-EXPORT_SYMBOL(nobh_write_begin_newtrunc);
-
-/*
- * On entry, the page is fully not uptodate.
- * On exit the page is fully uptodate in the areas outside (from,to)
- */
-int nobh_write_begin(struct file *file, struct address_space *mapping,
-                       loff_t pos, unsigned len, unsigned flags,
-                       struct page **pagep, void **fsdata,
-                       get_block_t *get_block)
-{
-       int ret;
-
-       ret = nobh_write_begin_newtrunc(file, mapping, pos, len, flags,
-                                       pagep, fsdata, get_block);
-
-       /*
-        * prepare_write() may have instantiated a few blocks
-        * outside i_size.  Trim these off again. Don't need
-        * i_size_read because we hold i_mutex.
-        */
-       if (unlikely(ret)) {
-               loff_t isize = mapping->host->i_size;
-               if (pos + len > isize)
-                       vmtruncate(mapping->host, isize);
-       }
-
-       return ret;
-}
 EXPORT_SYMBOL(nobh_write_begin);
 
 int nobh_write_end(struct file *file, struct address_space *mapping,