linux-toradex.git/net/ceph, branch v4.17-rc1

Merge tag 'ceph-for-4.17-rc1' of git://github.com/ceph/ceph-client

2018-04-10T19:25:30+00:00

Pull ceph updates from Ilya Dryomov:
 "The big ticket items are:

   - support for rbd "fancy" striping (myself).

     The striping feature bit is now fully implemented, allowing mapping
     v2 images with non-default striping patterns. This completes
     support for --image-format 2.

   - CephFS quota support (Luis Henriques and Zheng Yan).

     This set is based on the new SnapRealm code in the upcoming v13.y.z
     ("Mimic") release. Quota handling will be rejected on older
     filesystems.

   - memory usage improvements in CephFS (Chengguang Xu).

     Directory specific bits have been split out of ceph_file_info and
     some effort went into improving cap reservation code to avoid OOM
     crashes.

  Also included a bunch of assorted fixes all over the place from
  Chengguang and others"

* tag 'ceph-for-4.17-rc1' of git://github.com/ceph/ceph-client: (67 commits)
  ceph: quota: report root dir quota usage in statfs
  ceph: quota: add counter for snaprealms with quota
  ceph: quota: cache inode pointer in ceph_snap_realm
  ceph: fix root quota realm check
  ceph: don't check quota for snap inode
  ceph: quota: update MDS when max_bytes is approaching
  ceph: quota: support for ceph.quota.max_bytes
  ceph: quota: don't allow cross-quota renames
  ceph: quota: support for ceph.quota.max_files
  ceph: quota: add initial infrastructure to support cephfs quotas
  rbd: remove VLA usage
  rbd: fix spelling mistake: "reregisteration" -> "reregistration"
  ceph: rename function drop_leases() to a more descriptive name
  ceph: fix invalid point dereference for error case in mdsc destroy
  ceph: return proper bool type to caller instead of pointer
  ceph: optimize memory usage
  ceph: optimize mds session register
  libceph, ceph: add __init attribution to init funcitons
  ceph: filter out used flags when printing unused open flags
  ceph: don't wait on writeback when there is no more dirty pages
  ...

ceph: quota: add initial infrastructure to support cephfs quotas

2018-04-02T09:17:51+00:00

This patch adds the infrastructure required to support cephfs quotas as it
is currently implemented in the ceph fuse client.  Cephfs quotas can be
set on any directory, and can restrict the number of bytes or the number
of files stored beneath that point in the directory hierarchy.

Quotas are set using the extended attributes 'ceph.quota.max_files' and
'ceph.quota.max_bytes', and can be removed by setting these attributes to
'0'.

Link: http://tracker.ceph.com/issues/22372
Signed-off-by: Luis Henriques 
Reviewed-by: "Yan, Zheng" 
Signed-off-by: Ilya Dryomov

libceph, ceph: add __init attribution to init funcitons

2018-04-02T08:12:48+00:00

Add __init attribution to the functions which are called only once
during initiating/registering operations and deleting unnecessary
symbol exports.

Signed-off-by: Chengguang Xu 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: adding missing message types to ceph_msg_type_name()

2018-04-02T08:12:46+00:00

Some of message types are missing in ceph_msg_type_name(),
so just adding them for better understanding of output information.

Signed-off-by: Chengguang Xu 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: fix misjudgement of maximum monitor number

2018-04-02T08:12:45+00:00

num_mon should allow up to CEPH_MAX_MON in ceph_monmap_decode().

Signed-off-by: Chengguang Xu 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph, ceph: change permission for readonly debugfs entries

2018-04-02T08:12:45+00:00

Remove write permission for debugfs entries which only have readonly
function.

Signed-off-by: Chengguang Xu 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

ceph: add newline to end of debug message format

2018-04-02T08:12:44+00:00

Some of dout format do not include newline in the end,
fix for the files which are in fs/ceph and net/ceph directories,
and changing printk to dout for printing debug info in super.c

Signed-off-by: Chengguang Xu 
Reviewed-by: "Yan, Zheng" 
Signed-off-by: Ilya Dryomov

libceph, ceph: move ceph_calc_file_object_mapping() to striper.c

2018-04-02T08:12:43+00:00

ceph_calc_file_object_mapping() has nothing to do with osdmaps.

Signed-off-by: Ilya Dryomov

libceph: striping framework implementation

2018-04-02T08:12:42+00:00

Signed-off-by: Ilya Dryomov

libceph: handle zero-length data items

2018-04-02T08:12:40+00:00

rbd needs this for null copyups -- if copyup data is all zeroes, we
want to save some I/O and network bandwidth.  See rbd_obj_issue_copyup()
in the next commit.

Signed-off-by: Ilya Dryomov 
Reviewed-by: Alex Elder