[PATCH] xfstests: test EROFS vs. EEXIST when creating on an RO filesystem

[Christoph Hellwig]

On Tue, Nov 27, 2012 at 03:16:39PM -0600, Eric Sandeen wrote:
> TBH, I don't know if this is posix-specified, but I found out the
> hard way that when trying to re-create existing files on a readonly 
> filesystem, some apps expect/handle EEXIST, but fail on EROFS.
> 
> This will test mkdir, mknod, and symlinks for that behavior.

Just curious, which filesystem would fail this currently or did in the
past?