linux-toradex.git/fs/ceph/mds_client.h, branch v4.8-rc1

ceph: unify cap flush and snapcap flush

2016-07-28T01:00:42+00:00

This patch includes following changes
- Assign flush tid to snapcap flush
- Remove session's s_cap_snaps_flushing list. Add inode to session's
  s_cap_flushing list instead. Inode is removed from the list when
  there is no pending snapcap flush or cap flush.
- make __kick_flushing_caps() re-send both snapcap flushes and cap
  flushes.

Signed-off-by: Yan, Zheng

ceph: use list instead of rbtree to track cap flushes

2016-07-28T01:00:42+00:00

We don't have requirement of searching cap flush by TID. In most cases,
we just need to know TID of the oldest cap flush. List is ideal for this
usage.

Signed-off-by: Yan, Zheng

ceph: mount non-default filesystem by name

2016-07-28T01:00:40+00:00

To mount non-default filesytem, user currently needs to provide mds
namespace ID. This is inconvenience.

This patch makes user be able to mount filesystem by name. If user
wants to mount non-default filesystem. Client first subscribes to
fsmap.user. Subscribe to mdsmap. after getting ID of filesystem.

Signed-off-by: Yan, Zheng

ceph: remove ceph_mdsc_lease_release

2016-07-28T01:00:38+00:00

Nothing calls it.

Signed-off-by: Jeff Layton 
Reviewed-by: Yan, Zheng

ceph: rados pool namespace support

2016-07-28T00:55:38+00:00

This patch adds codes that decode pool namespace information in
cap message and request reply. Pool namespace is saved in i_layout,
it will be passed to libceph when doing read/write.

Signed-off-by: Yan, Zheng

libceph: define new ceph_file_layout structure

2016-07-28T00:55:36+00:00

Define new ceph_file_layout structure and rename old ceph_file_layout
to ceph_file_layout_legacy. This is preparation for adding namespace
to ceph_file_layout structure.

Signed-off-by: Yan, Zheng

ceph: using hash value to compose dentry offset

2016-05-25T23:15:36+00:00

If MDS sorts dentries in dirfrag in hash order, we use hash value to
compose dentry offset. dentry offset is:

  (0xff << 52) | ((24 bits hash) << 28) |
  (the nth entry hash hash collision)

This offset is stable across directory fragmentation. This alos means
there is no need to reset readdir offset if directory get fragmented
in the middle of readdir.

Signed-off-by: Yan, Zheng

ceph: record 'offset' for each entry of readdir result

2016-05-25T23:15:35+00:00

This is preparation for using hash value as dentry 'offset'

Signed-off-by: Yan, Zheng

ceph: define 'end/complete' in readdir reply as bit flags

2016-05-25T23:15:35+00:00

Set a flag in readdir request, which indicates that client interprets
'end/complete' as bit flags. So that mds can reply additional flags in
readdir reply.

Signed-off-by: Yan, Zheng

ceph: define struct for dir entry in readdir reply

2016-05-25T23:15:34+00:00

This avoids defining multiple arrays for entries in readdir reply

Signed-off-by: Yan, Zheng