exofs: replace inode uid,gid,mode initialization with helper function

Ack-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index 76d2a79..d7c6afa 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -1123,16 +1123,7 @@
 	sbi = sb->s_fs_info;
 
 	sb->s_dirt = 1;
-	inode->i_uid = current->cred->fsuid;
-	if (dir->i_mode & S_ISGID) {
-		inode->i_gid = dir->i_gid;
-		if (S_ISDIR(mode))
-			mode |= S_ISGID;
-	} else {
-		inode->i_gid = current->cred->fsgid;
-	}
-	inode->i_mode = mode;
-
+	inode_init_owner(inode, dir, mode);
 	inode->i_ino = sbi->s_nextid++;
 	inode->i_blkbits = EXOFS_BLKSHIFT;
 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;