On 03/06/2012 04:15 PM, Ted Ts'o wrote:
On Tue, Mar 06, 2012 at 10:59:55AM +0100, Bernd Schubert wrote:
Arg, my bad, I introduced this issue when I converted from f_flags
to f_mode, seems I forgot all of those above :(
Hrm, I thought I had tested sufficiently, but obviously I did not :(
Here's the test tool.
http://www.pci.uni-heidelberg.de/tc/usr/bernd/downloads/test_seekdir/
While quickly looking, I think it only affects NFSv2, which I think
I indeed didn't test. I only run tests for 32 bit and 64-bit user
space and NFSv3. But yes, NFSv2 is an important test too. Not sure
if I will find time for that today.
I think the problem case to worry about would have been on a 32-bit
NFS server (think embedded/bookshelf NAS servers) and NFSv3, since
that's where the inconsistency would have meant that hash2pos would
use the 32-bit codepath, but pos2maj_hash would use the 64-bit
codepath, and so then... kablooey.
Will send an updated version later on.
If it's just those changes, no worries, as I've already fixed up the
f_flags vs. f_mode issue in my copy of the patches.
Let me know if there are any other changes that you'd like to make or
issues that you've spotted.
Ted, thanks a bunch! I really will try to be more careful updating
patches next time. And during the next days I'm also going to review the
patches again, at least I hope I find the time for that while being on
vacation).
Thanks again,
Bernd
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