omfs: convert to use beXX_add_cpu()

Convert cpu_to_beXX(beXX_to_cpu(E1) + E2) to use beXX_add_cpu().

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/omfs/file.c

@@ -146,8 +146,7 @@ static int omfs_grow_extent(struct inode *inode, struct omfs_extent *oe,
 			be64_to_cpu(entry->e_blocks);
 
 		if (omfs_allocate_block(inode->i_sb, new_block)) {
-			entry->e_blocks =
-				cpu_to_be64(be64_to_cpu(entry->e_blocks) + 1);
+			be64_add_cpu(&entry->e_blocks, 1);
 			terminator->e_blocks = ~(cpu_to_be64(
 				be64_to_cpu(~terminator->e_blocks) + 1));
 			goto out;
@@ -177,7 +176,7 @@ static int omfs_grow_extent(struct inode *inode, struct omfs_extent *oe,
 		be64_to_cpu(~terminator->e_blocks) + (u64) new_count));
 
 	/* write in new entry */
-	oe->e_extent_count = cpu_to_be32(1 + be32_to_cpu(oe->e_extent_count));
+	be32_add_cpu(&oe->e_extent_count, 1);
 
 out:
 	*ret_block = new_block;