Debugging lsetxattr / llistxattr

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Hi all,

I'm having some difficulty debugging a symlink xattr problem, though
luckily it is reproducible.

A basic test that adds an xattr to a symlink:

   ceph_lsetxattr(symlink path, ...);
   ceph_llistxattr(symlink path, ...);

results in a return value of 0 from llistxattr (no xattrs found).
However, calling ceph_fsync() in between the two calls seems to
refresh something, and things work as expected. I traced through the
setxattr path, but haven't found any place that treats the symlink
differently. So, no luck yet.

www.soe.ucsc.edu/~jayhawk/mds.a.log.tar.gz
www.soe.ucsc.edu/~jayhawk/client.admin.log

Thanks,
- Noah
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