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libceph: bump CEPH_MSG_MAX_DATA_LEN (again)

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This time for rbd object map.  Object maps are limited in size to
256000000 objects, two bits per object.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
This commit is contained in:
Ilya Dryomov 2019-04-08 14:16:05 +02:00
parent 637cd06053
commit ef83171b49
1 changed files with 4 additions and 2 deletions
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6
include/linux/ceph/libceph.h
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@ -84,11 +84,13 @@ struct ceph_options {
#define CEPH_MSG_MAX_MIDDLE_LEN (16*1024*1024)
/*
* Handle the largest possible rbd object in one message.
* The largest possible rbd data object is 32M.
* The largest possible rbd object map object is 64M.
*
* There is no limit on the size of cephfs objects, but it has to obey
* rsize and wsize mount options anyway.
*/
#define CEPH_MSG_MAX_DATA_LEN (32*1024*1024)
#define CEPH_MSG_MAX_DATA_LEN (64*1024*1024)
#define CEPH_AUTH_NAME_DEFAULT "guest"