filemap: Remove AOP_FLAG_CONT_EXPAND

This flag is no longer used, so remove it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>

fs/buffer.c

@@ -2352,8 +2352,7 @@ int generic_cont_expand_simple(struct inode *inode, loff_t size)
 	if (err)
 		goto out;
 
-	err = pagecache_write_begin(NULL, mapping, size, 0,
-				    AOP_FLAG_CONT_EXPAND, &page, &fsdata);
+	err = pagecache_write_begin(NULL, mapping, size, 0, 0, &page, &fsdata);
 	if (err)
 		goto out;
 

include/linux/fs.h

@@ -275,7 +275,6 @@ enum positive_aop_returns {
 	AOP_TRUNCATED_PAGE	= 0x80001,
 };
 
-#define AOP_FLAG_CONT_EXPAND		0x0001 /* called from cont_expand */
 #define AOP_FLAG_NOFS			0x0002 /* used by filesystem to direct
 						* helper code (eg buffer layer)
 						* to clear GFP_FS from alloc */