linux-toradex.git/include/linux/ceph/ceph_fs.h, branch v4.14-rc7

ceph: more accurate statfs

2017-09-06T17:56:49+00:00

Improve accuracy of statfs reporting for Ceph filesystems comprising
exactly one data pool. In this case, the Ceph monitor can now report
the space usage for the single data pool instead of the global data
for the entire Ceph cluster. Include support for this message in
mon_client and leverage it in ceph/super.

Signed-off-by: Douglas Fuller 
Reviewed-by: Yan, Zheng 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

ceph: new cap message flags indicate if there is pending capsnap

2017-09-06T17:56:44+00:00

These flags tell mds if there is pending capsnap explicitly.
Without this explicit notification, mds can only conclude if
client has pending capsnap. The method mds use is inefficient
and error-prone.

Signed-off-by: "Yan, Zheng" 
Signed-off-by: Ilya Dryomov

libceph: respect RADOS_BACKOFF backoffs

2017-07-07T15:25:17+00:00

Signed-off-by: Ilya Dryomov

ceph: fix file open flags on ppc64

2017-05-04T07:19:24+00:00

The file open flags (O_foo) are platform specific and should never go
out to an interface that is not local to the system.

Unfortunately these flags have leaked out onto the wire in the cephfs
implementation. That lead to bogus flags getting transmitted on ppc64.

This patch converts the kernel view of flags to the ceph view of file
open flags.

Fixes: 124e68e74 ("ceph: file operations")
Signed-off-by: Alexander Graf 
Reviewed-by: "Yan, Zheng" 
Signed-off-by: Ilya Dryomov

ceph: make seeky readdir more efficient

2017-05-04T07:19:20+00:00

Current cephfs client uses string to indicate start position of
readdir. The string is last entry of previous readdir reply.
This approach does not work for seeky readdir because we can
not easily convert the new postion to a string. For seeky readdir,
mds needs to return dentries from the beginning. Client keeps
retrying if the reply does not contain the dentry it wants.

In current version of ceph, mds sorts CDentry in its cache in
hash order. Client also uses dentry hash to compose dir postion.
For seeky readdir, if client passes the hash part of dir postion
to mds. mds can avoid replying useless dentries.

Signed-off-by: "Yan, Zheng" 
Signed-off-by: Ilya Dryomov

ceph: add flags parameter to send_cap_msg

2016-12-12T22:54:28+00:00

Add a flags parameter to send_cap_msg, so we can request expedited
service from the MDS when we know we'll be waiting on the result.

Set that flag in the case of try_flush_caps. The callers of that
function generally wait synchronously on the result, so it's beneficial
to ask the server to expedite it.

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

ceph: handle CEPH_SESSION_REJECT message

2016-10-03T14:13:50+00:00

Signed-off-by: Yan, Zheng

libceph: support for blacklisting clients

2016-08-24T21:49:15+00:00

Reuse ceph_mon_generic_request infrastructure for sending monitor
commands.  In particular, add support for 'blacklist add' to prevent
other, non-responsive clients from making further updates.

Signed-off-by: Douglas Fuller 
[idryomov@gmail.com: refactor, misc fixes throughout]
Signed-off-by: Ilya Dryomov 
Reviewed-by: Mike Christie 
Reviewed-by: Alex Elder

libceph: fsmap.user subscription support

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

Signed-off-by: Yan, Zheng 
Signed-off-by: Ilya Dryomov

ceph: reduce i_nr_by_mode array size

2016-07-28T00:55:39+00:00

Track usage count for individual fmode bit. This can reduce the
array size by half.

Signed-off-by: Yan, Zheng