On Thu, 2009-12-17 at 00:40 +0000, Al Viro wrote:
> In the meanwhile, see if this fixes it
> 8f4cb3a4252a053d2c7299d7d251389bddf0bcd4
> diff --git a/mm/shmem.c b/mm/shmem.c

I can confirm that this fixes the problem. (When applied to a virgin
linux-2.6 checkout, without reverting anything)

Thank you :)

> index f848506..eef4ebe 100644
> --- a/mm/shmem.c
> +++ b/mm/shmem.c
> @@ -1830,6 +1830,8 @@ shmem_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
>  			iput(inode);
>  			return error;
>  		}
> +#else
> +		error = 0;
>  #endif
>  		if (dir->i_mode & S_ISGID) {
>  			inode->i_gid = dir->i_gid;

Regards,
Tony V.