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Xiubo Li 850bb48189 ceph: switch to corrected encoding of max_xattr_size in mdsmap 
[ Upstream commit 51d31149a8 ]

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: d93231a6bc ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-15 10:48:13 -04:00
..
auth.h libceph: set global_id as soon as we get an auth ticket 2021-06-24 21:03:17 +02:00
buffer.h
ceph_debug.h
ceph_features.h libceph, ceph: get and handle cluster maps with addrvecs 2020-12-14 23:21:50 +01:00
ceph_frag.h
ceph_fs.h ceph: fix incorrect old_size length in ceph_mds_request_args 2022-08-03 00:54:12 +02:00
ceph_hash.h
cls_lock_client.h
debugfs.h
decode.h libceph, ceph: implement msgr2.1 protocol (crc and secure modes) 2020-12-14 23:21:50 +01:00
libceph.h ceph: move mount state enum to super.h 2023-02-22 12:59:45 +01:00
mdsmap.h ceph: switch to corrected encoding of max_xattr_size in mdsmap 2024-03-15 10:48:13 -04:00
messenger.h libceph: drop last_piece flag from ceph_msg_data_cursor 2022-10-04 19:18:08 +02:00
mon_client.h
msgpool.h
msgr.h libceph: add __maybe_unused to DEFINE_MSGR2_FEATURE 2020-12-28 20:34:33 +01:00
osd_client.h libceph: clean up ceph_osdc_start_request prototype 2022-08-03 14:05:39 +02:00
osdmap.h libceph, ceph: get and handle cluster maps with addrvecs 2020-12-14 23:21:50 +01:00
pagelist.h
rados.h
string_table.h
striper.h
types.h