[GIT PULL] Ceph updates for 5.17-rc1

[Ilya Dryomov]

Hi Linus,

The following changes since commit df0cc57e057f18e44dac8e6c18aba47ab53202f9:

  Linux 5.16 (2022-01-09 14:55:34 -0800)

are available in the Git repository at:

  https://github.com/ceph/ceph-client.git tags/ceph-for-5.17-rc1

for you to fetch changes up to a0b3a15eab6bc2e90008460b646d53e7d9dcdbbb:

  ceph: move CEPH_SUPER_MAGIC definition to magic.h (2022-01-13 13:40:07 +0100)

There is a trivial conflict caused by removal of ceph_kvmalloc()
helper that went though the akpm tree.  I pushed the resolution to
for-linus-merged just in case.

----------------------------------------------------------------
The highlight is the new mount "device" string syntax implemented
by Venky Shankar.  It solves some long-standing issues with using
different auth entities and/or mounting different CephFS filesystems
from the same cluster, remounting and also misleading /proc/mounts
contents.  The existing syntax of course remains to be maintained.

On top of that, there is a couple of fixes for edge cases in quota
and a new mount option for turning on unbuffered I/O mode globally
instead of on a per-file basis with ioctl(CEPH_IOC_SYNCIO).

----------------------------------------------------------------
Colin Ian King (1):
      rbd: make const pointer spaces a static const array

Jeff Layton (4):
      ceph: drop send metrics debug message
      ceph: don't check for quotas on MDS stray dirs
      ceph: add new "nopagecache" option
      ceph: move CEPH_SUPER_MAGIC definition to magic.h

Kotresh HR (1):
      ceph: Fix incorrect statfs report for small quota

Venky Shankar (6):
      libceph: generalize addr/ip parsing based on delimiter
      libceph: rename parse_fsid() to ceph_parse_fsid() and export
      ceph: new device mount syntax
      ceph: record updated mon_addr on remount
      doc: document new CephFS mount device syntax
      ceph: mount syntax module parameter

Xiubo Li (1):
      ceph: remove redundant Lsx caps check

 Documentation/filesystems/ceph.rst |  25 +++++-
 drivers/block/rbd.c                |   5 +-
 fs/ceph/caps.c                     |   3 +-
 fs/ceph/file.c                     |  24 ++++--
 fs/ceph/metric.c                   |   2 -
 fs/ceph/quota.c                    |  17 ++++
 fs/ceph/super.c                    | 169 ++++++++++++++++++++++++++++++++++---
 fs/ceph/super.h                    |  28 +++---
 include/linux/ceph/libceph.h       |   3 +-
 include/linux/ceph/messenger.h     |   2 +-
 include/uapi/linux/magic.h         |   1 +
 net/ceph/ceph_common.c             |  18 ++--
 net/ceph/messenger.c               |  15 ++--
 13 files changed, 255 insertions(+), 57 deletions(-)