linux-stable.git/net/ceph, branch v4.8.9

libceph: fix legacy layout decode with pool 0

2016-11-18T09:51:52+00:00

commit 3890dce1d3a8b9fe3bc36de99496792e468cd079 upstream.

If your data pool was pool 0, ceph_file_layout_from_legacy()
transform that to -1 unconditionally, which broke upgrades.
We only want do that for a fully zeroed ceph_file_layout,
so that it still maps to a file_layout_t.  If any fields
are set, though, we trust the fl_pgpool to be a valid pool.

Fixes: 7627151ea30bc ("libceph: define new ceph_file_layout structure")
Link: http://tracker.ceph.com/issues/17825
Signed-off-by: Yan, Zheng 
Signed-off-by: Ilya Dryomov 
Signed-off-by: Greg Kroah-Hartman

libceph: using kfree_rcu() to simplify the code

2016-08-08T19:41:42+00:00

The callback function of call_rcu() just calls a kfree(), so we
can use kfree_rcu() instead of call_rcu() + callback function.

Signed-off-by: Wei Yongjun 
Signed-off-by: Ilya Dryomov

libceph: make cancel_generic_request() static

2016-08-08T19:41:42+00:00

Fixes the following sparse warning:

net/ceph/mon_client.c:577:6: warning:
 symbol 'cancel_generic_request' was not declared. Should it be static?

Signed-off-by: Wei Yongjun 
Signed-off-by: Ilya Dryomov

libceph: fix return value check in alloc_msg_with_page_vector()

2016-08-08T19:41:41+00:00

In case of error, the function ceph_alloc_page_vector() returns
ERR_PTR() and never returns NULL. The NULL test in the return value
check should be replaced with IS_ERR().

Fixes: 1907920324f1 ('libceph: support for sending notifies')
Signed-off-by: Wei Yongjun 
Signed-off-by: Ilya Dryomov

libceph: fsmap.user subscription support

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

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

libceph: make sure redirect does not change namespace

2016-07-28T00:55:37+00:00

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

libceph: rados pool namespace support

2016-07-28T00:55:37+00:00

Add pool namesapce pointer to struct ceph_file_layout and struct
ceph_object_locator. Pool namespace is used by when mapping object
to PG, it's also used when composing OSD request.

The namespace pointer in struct ceph_file_layout is RCU protected.
So libceph can read namespace without taking lock.

Signed-off-by: Yan, Zheng 
[idryomov@gmail.com: ceph_oloc_destroy(), misc minor changes]
Signed-off-by: Ilya Dryomov

libceph: introduce reference counted string

2016-07-28T00:55:37+00:00

The data structure is for storing namesapce string. It allows namespace
string to be shared between cephfs inodes with same layout. This data
structure can also be referenced by OSD request.

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

libceph: fix some missing includes

2016-07-28T00:55:35+00:00

- decode.h needs slab.h for kmalloc()
- osd_client.h needs msgpool.h for struct ceph_msgpool
- msgpool.h doesn't need messenger.h

Signed-off-by: Ilya Dryomov