ceph: switch to corrected encoding of max_xattr_size in mdsmap
The addition of bal_rank_mask with encoding version 17 was merged into ceph.git in Oct 2022 and made it into v18.2.0 release normally. A few months later, the much delayed addition of max_xattr_size got merged, also with encoding version 17, placed before bal_rank_mask in the encoding -- but it didn't make v18.2.0 release. The way this ended up being resolved on the MDS side is that bal_rank_mask will continue to be encoded in version 17 while max_xattr_size is now encoded in version 18. This does mean that older kernels will misdecode version 17, but this is also true for v18.2.0 and v18.2.1 clients in userspace. The best we can do is backport this adjustment -- see ceph.git commit 78abfeaff27fee343fb664db633de5b221699a73 for details. [ idryomov: changelog ] Cc: stable@vger.kernel.org Link: https://tracker.ceph.com/issues/64440 Fixes: d93231a6 ("ceph: prevent a client from exceeding the MDS maximum xattr size") Signed-off-by:Xiubo Li <xiubli@redhat.com> Reviewed-by:
Patrick Donnelly <pdonnell@ibm.com> Reviewed-by:
Venky Shankar <vshankar@redhat.com> Signed-off-by:
Ilya Dryomov <idryomov@gmail.com>
parent
d206a76d