On Mar. 25, 2010, 12:54 +0200, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
> On Thu, Mar 25, 2010 at 10:12:31AM +0000, Al Viro wrote:
>> On Thu, Mar 25, 2010 at 11:39:38AM +0200, Boaz Harrosh wrote:
>>
>>> It makes no difference, fails just the same. Would an "strace" help?
>> It might, especially if you ran it for identical repositories on local
>> fs and on NFS; at least that way it would be possible to see where do
>> they diverge...
>
> I wonder... What happens if you add
> if (error == -EISDIR)
> printk("blah: %s", pathname);
> right after do_lookup() call in do_last()? That would separate -EISDIR
> coming from NFS from the same thing coming from fs/namei.c...
Bingo.
It is returned from do_lookup.
@@ -1648,6 +1654,8 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
/* just plain open? */
if (!(open_flag & O_CREAT)) {
error = do_lookup(nd, &nd->last, path);
+ if (error == -EISDIR)
+ printk("%s: do_lookup returned -EISDIR %s\n", __func__, pathname);
if (error)
goto exit;
error = -ENOENT;
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