reiserfs: le*_add_cpu conversion

replace all:
little_endian_variable = cpu_to_leX(leX_to_cpu(little_endian_variable) +
					expression_in_cpu_byteorder);
with:
	leX_add_cpu(&little_endian_variable, expression_in_cpu_byteorder);
generated with semantic patch

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/reiserfs/objectid.c

@@ -114,7 +114,7 @@ void reiserfs_release_objectid(struct reiserfs_transaction_handle *th,
 		if (objectid_to_release == le32_to_cpu(map[i])) {
 			/* This incrementation unallocates the objectid. */
 			//map[i]++;
-			map[i] = cpu_to_le32(le32_to_cpu(map[i]) + 1);
+			le32_add_cpu(&map[i], 1);
 
 			/* Did we unallocate the last member of an odd sequence, and can shrink oids? */
 			if (map[i] == map[i + 1]) {
@@ -138,8 +138,7 @@ void reiserfs_release_objectid(struct reiserfs_transaction_handle *th,
 			/* size of objectid map is not changed */
 			if (objectid_to_release + 1 == le32_to_cpu(map[i + 1])) {
 				//objectid_map[i+1]--;
-				map[i + 1] =
-				    cpu_to_le32(le32_to_cpu(map[i + 1]) - 1);
+				le32_add_cpu(&map[i + 1], -1);
 				return;
 			}
 

fs/reiserfs/stree.c

@@ -1419,8 +1419,7 @@ int reiserfs_delete_object(struct reiserfs_transaction_handle *th,
 
 		inode_generation =
 		    &REISERFS_SB(th->t_super)->s_rs->s_inode_generation;
-		*inode_generation =
-		    cpu_to_le32(le32_to_cpu(*inode_generation) + 1);
+		le32_add_cpu(inode_generation, 1);
 	}
 /* USE_INODE_GENERATION_COUNTER */
 #endif