fuse_copy_do      598 fs/fuse/dev.c  			offset += fuse_copy_do(cs, &buf, &count);
fuse_copy_do      601 fs/fuse/dev.c  			offset += fuse_copy_do(cs, NULL, &count);
fuse_copy_do      637 fs/fuse/dev.c  		fuse_copy_do(cs, &val, &size);