On Wed, Apr 07, 2010 at 03:04:46PM -0700, Linus Torvalds wrote:
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15674
> > Subject : [2.6.34-rc2 NFS4 oops] open error path failure...
> > Submitter : Daniel J Blueman <[email protected]>
> > Date : 2010-03-29 18:36 (10 days old)
> > Message-ID : <[email protected]>
> > References : http://marc.info/?l=linux-kernel&m=126988782722711&w=2
>
> This smells like the same LOOKUP_DIRECTORY thing as the first entry, but..
No, it's not the same thing; the fix is to have nfs ->d_revalidate()
return an error on failing open attempt (in insane codepath that has
->d_revalidate() handling open()). Confirmed to work by reporter...
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d79a7b3..fe0cd9e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2068,8 +2068,7 @@ nfs4_open_revalidate(struct inode *dir, struct dentry
*dentry, int openflags, st
case -EDQUOT:
case -ENOSPC:
case -EROFS:
- lookup_instantiate_filp(nd, (struct dentry
*)state, NULL);
- return 1;
+ return PTR_ERR(state);
default:
goto out_drop;
}
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