linux-toradex.git/include/linux/ceph, branch v5.1-rc4

libceph: wait for latest osdmap in ceph_monc_blacklist_add()

2019-03-20T15:27:40+00:00

Because map updates are distributed lazily, an OSD may not know about
the new blacklist for quite some time after "osd blacklist add" command
is completed.  This makes it possible for a blacklisted but still alive
client to overwrite a post-blacklist update, resulting in data
corruption.

Waiting for latest osdmap in ceph_monc_blacklist_add() and thus using
the post-blacklist epoch for all post-blacklist requests ensures that
all such requests "wait" for the blacklist to come into force on their
respective OSDs.

Cc: stable@vger.kernel.org
Fixes: 6305a3b41515 ("libceph: support for blacklisting clients")
Signed-off-by: Ilya Dryomov 
Reviewed-by: Jason Dillaman

ceph: add mount option to limit caps count

2019-03-05T17:55:17+00:00

If number of caps exceed the limit, ceph_trim_dentires() also trim
dentries with valid leases. Trimming dentry releases references to
associated inode, which may evict inode and release caps.

By default, there is no limit for caps count.

Signed-off-by: "Yan, Zheng" 
Reviewed-by: Jeff Layton 
Signed-off-by: Ilya Dryomov

libceph: allow setting abort_on_full for rbd

2019-01-07T21:47:48+00:00

Introduce a new option abort_on_full, default to false. Then
we can get -ENOSPC when the pool is full, or reaches quota.

[ Don't show abort_on_full in /proc/mounts. ]

Signed-off-by: Dongsheng Yang 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: assume argonaut on the server side

2018-11-08T16:51:11+00:00

No one is running pre-argonaut.  In addition one of the argonaut
features (NOSRCADDR) has been required since day one (and a half,
2.6.34 vs 2.6.35) of the kernel client.

Allow for the possibility of reusing these feature bits later.

Signed-off-by: Ilya Dryomov 
Reviewed-by: Sage Weil

libceph: support the RADOS copy-from operation

2018-10-22T08:28:23+00:00

Add support for performing remote object copies using the 'copy-from'
operation.

[ Add COPY_FROM to get_num_data_items(). ]

Signed-off-by: Luis Henriques 
Reviewed-by: Ilya Dryomov 
Signed-off-by: Ilya Dryomov

libceph: preallocate message data items

2018-10-22T08:28:22+00:00

Currently message data items are allocated with ceph_msg_data_create()
in setup_request_data() inside send_request().  send_request() has never
been allowed to fail, so each allocation is followed by a BUG_ON:

  data = ceph_msg_data_create(...);
  BUG_ON(!data);

It's been this way since support for multiple message data items was
added in commit 6644ed7b7e04 ("libceph: make message data be a pointer")
in 3.10.

There is no reason to delay the allocation of message data items until
the last possible moment and we certainly don't need a linked list of
them as they are only ever appended to the end and never erased.  Make
ceph_msg_new2() take max_data_items and adapt the rest of the code.

Reported-by: Jerry Lee 
Signed-off-by: Ilya Dryomov

libceph: introduce ceph_pagelist_alloc()

2018-10-22T08:28:21+00:00

struct ceph_pagelist cannot be embedded into anything else because it
has its own refcount.  Merge allocation and initialization together.

Signed-off-by: Ilya Dryomov

libceph: osd_req_op_cls_init() doesn't need to take opcode

2018-10-22T08:28:20+00:00

Signed-off-by: Ilya Dryomov

libceph: bump CEPH_MSG_MAX_DATA_LEN

2018-10-22T08:28:20+00:00

If the read is large enough, we end up spinning in the messenger:

  libceph: osd0 192.168.122.1:6801 io error
  libceph: osd0 192.168.122.1:6801 io error
  libceph: osd0 192.168.122.1:6801 io error

This is a receive side limit, so only reads were affected.

Cc: stable@vger.kernel.org
Signed-off-by: Ilya Dryomov

libceph: implement CEPHX_V2 calculation mode

2018-08-02T19:33:25+00:00

Derive the signature from the entire buffer (both AES cipher blocks)
instead of using just the first half of the first block, leaving out
data_crc entirely.

This addresses CVE-2018-1129.

Link: http://tracker.ceph.com/issues/24837
Signed-off-by: Ilya Dryomov 
Reviewed-by: Sage Weil