[GIT PULL] Ceph updates for 5.11-rc1

[Ilya Dryomov <idryomov@gmail.com>]

Hi Linus,

The following changes since commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442:

  Linux 5.10 (2020-12-13 14:41:30 -0800)

are available in the Git repository at:

  https://github.com/ceph/ceph-client.git tags/ceph-for-5.11-rc1

for you to fetch changes up to 2f0df6cfa325d7106b8a65bc0e02db1086e3f73b:

  libceph: drop ceph_auth_{create,update}_authorizer() (2020-12-14 23:21:50 +0100)

There is a build conflict caused by the split of crypto/sha.h into
crypto/sha1.h and crypto/sha2.h that affects net/ceph/messenger_v2.c.
The resolution is to include the latter, done in for-linus-merged
just in case.

----------------------------------------------------------------
The big ticket item here is support for msgr2 on-wire protocol, which
adds the option of full in-transit encryption using AES-GCM algorithm
(myself).  On top of that we have a series to avoid intermittent
errors during recovery with recover_session=clean and some MDS request
encoding work from Jeff, a cap handling fix and assorted observability
improvements from Luis and Xiubo and a good number of cleanups.  Luis
also ran into a corner case with quotas which sadly means that we are
back to denying cross-quota-realm renames.

----------------------------------------------------------------
Colin Ian King (1):
      ceph: remove redundant assignment to variable i

Ilya Dryomov (34):
      libceph: include middle_len in process_message() dout
      libceph: lower exponential backoff delay
      libceph: don't call reset_connection() on version/feature mismatches
      libceph: split protocol reset bits out of reset_connection()
      libceph: rename reset_connection() to ceph_con_reset_session()
      libceph: clear con->peer_global_seq on RESETSESSION
      libceph: remove redundant session reset log message
      libceph: drop msg->ack_stamp field
      libceph: handle discarding acked and requeued messages separately
      libceph: change ceph_msg_data_cursor_init() to take cursor
      libceph: change ceph_con_in_msg_alloc() to take hdr
      libceph: factor out ceph_con_get_out_msg()
      libceph: make sure our addr->port is zero and addr->nonce is non-zero
      libceph: don't export ceph_messenger_{init_fini}() to modules
      libceph: make con->state an int
      libceph: rename and export con->state states
      libceph: rename and export con->flags bits
      libceph: export zero_page
      libceph: export remaining protocol independent infrastructure
      libceph: separate msgr1 protocol implementation
      libceph: move msgr1 protocol implementation to its own file
      libceph: move msgr1 protocol specific fields to its own struct
      libceph: more insight into ticket expiry and invalidation
      libceph: safer en/decoding of cephx requests and replies
      libceph, ceph: incorporate nautilus cephx changes
      libceph: amend cephx init_protocol() and build_request()
      libceph: drop ac->ops->name field
      libceph: factor out finish_auth()
      libceph, ceph: get and handle cluster maps with addrvecs
      libceph, rbd: ignore addr->type while comparing in some cases
      libceph: introduce connection modes and ms_mode option
      libceph, ceph: implement msgr2.1 protocol (crc and secure modes)
      libceph, ceph: make use of __ceph_auth_get_authorizer() in msgr1
      libceph: drop ceph_auth_{create,update}_authorizer()

Jeff Layton (15):
      ceph: don't WARN when removing caps due to blocklisting
      ceph: make fsc->mount_state an int
      ceph: add new RECOVER mount_state when recovering session
      ceph: remove timeout on allowing reconnect after blocklisting
      ceph: queue MDS requests to REJECTED sessions when CLEANRECOVER is set
      ceph: fix up some warnings on W=1 builds
      ceph: acquire Fs caps when getting dir stats
      ceph: ensure we have Fs caps when fetching dir link count
      ceph: pass down the flags to grab_cache_page_write_begin
      ceph: fix inode refcount leak when ceph_fill_inode on non-I_NEW inode fails
      ceph: when filling trace, call ceph_get_inode outside of mutexes
      ceph: don't reach into request header for readdir info
      ceph: take a cred reference instead of tracking individual uid/gid
      ceph: clean up argument lists to __prepare_send_request and __send_request
      ceph: implement updated ceph_mds_request_head structure

Liu, Changcheng (1):
      libceph: remove unused port macros

Luis Henriques (4):
      ceph: fix race in concurrent __ceph_remove_cap invocations
      ceph: downgrade warning from mdsmap decode to debug
      Revert "ceph: allow rename operation under different quota realms"
      ceph: add ceph.caps vxattr

Xiubo Li (4):
      ceph: send dentry lease metrics to MDS daemon
      ceph: add status debugfs file
      ceph: add ceph.{cluster_fsid/client_id} vxattrs
      ceph: set osdmap epoch for setxattr

 drivers/block/rbd.c                |    8 +-
 fs/ceph/addr.c                     |    6 +-
 fs/ceph/caps.c                     |   27 +-
 fs/ceph/debugfs.c                  |   20 +
 fs/ceph/dir.c                      |    9 +-
 fs/ceph/inode.c                    |   41 +-
 fs/ceph/locks.c                    |    8 +-
 fs/ceph/mds_client.c               |  280 ++-
 fs/ceph/mds_client.h               |    3 +-
 fs/ceph/mdsmap.c                   |   25 +-
 fs/ceph/metric.c                   |   18 +-
 fs/ceph/metric.h                   |   14 +
 fs/ceph/quota.c                    |   58 +-
 fs/ceph/super.c                    |   14 +-
 fs/ceph/super.h                    |    7 +-
 fs/ceph/xattr.c                    |   81 +-
 include/linux/ceph/auth.h          |   68 +-
 include/linux/ceph/ceph_features.h |   11 +-
 include/linux/ceph/ceph_fs.h       |   44 +-
 include/linux/ceph/decode.h        |    8 +
 include/linux/ceph/libceph.h       |   11 +-
 include/linux/ceph/mdsmap.h        |    2 +-
 include/linux/ceph/messenger.h     |  285 ++-
 include/linux/ceph/msgr.h          |   66 +-
 include/linux/ceph/osdmap.h        |    4 +-
 net/ceph/Kconfig                   |    3 +
 net/ceph/Makefile                  |    3 +-
 net/ceph/auth.c                    |  408 ++++-
 net/ceph/auth_none.c               |    5 +-
 net/ceph/auth_x.c                  |  298 +++-
 net/ceph/auth_x_protocol.h         |    3 +-
 net/ceph/ceph_common.c             |   63 +
 net/ceph/ceph_strings.c            |   28 +
 net/ceph/crypto.h                  |    3 +
 net/ceph/decode.c                  |  101 ++
 net/ceph/messenger.c               | 2252 +++++------------------
 net/ceph/messenger_v1.c            | 1506 ++++++++++++++++
 net/ceph/messenger_v2.c            | 3443 ++++++++++++++++++++++++++++++++++++
 net/ceph/mon_client.c              |  320 +++-
 net/ceph/osd_client.c              |  111 +-
 net/ceph/osdmap.c                  |   45 +-
 41 files changed, 7371 insertions(+), 2339 deletions(-)
 create mode 100644 net/ceph/messenger_v1.c
 create mode 100644 net/ceph/messenger_v2.c