On Tue, 2006-09-05 at 12:11 +0800, Ian Kent wrote: > On Mon, 2006-09-04 at 14:46 +0100, David Howells wrote: > > Ian Kent <raven@xxxxxxxxxx> wrote: > > > > > This is the point I'm trying to make. > > > I'm able to reproduce this with exports that don't have "nohide". > > > The mkdir used to return EEXIST, possibly before getting to the EACCES > > > test. It appears to be a change in semantic behavior and I can't see > > > where it is coming from. autofs expects an EEXIST but not an EACCES and > > > so doesn't perform the mount. I could ignore the EACCES but that would > > > be cheating. > > > > Here's something you can try: Look in fs/nfs/dir.c. Find nfs_lookup(). In > > there, find the following lines: > > > > /* If we're doing an exclusive create, optimize away the lookup */ > > if (nfs_is_exclusive_create(dir, nd)) > > goto no_entry; > > > > Comment that bit out and see what the effect it. > > Yes. > > Commenting this out results in the expected behavior. > No doubt this is because the following NFS lookup to the server returns > EEXIST which is then returned to userspace. It also breaks open(O_EXCL). Removing that is unacceptable. - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
