Commit 94e6992b authored by Ilya Dryomov's avatar Ilya Dryomov
Browse files

libceph: bump CEPH_MSG_MAX_DATA_LEN 



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: default avatarIlya Dryomov <idryomov@gmail.com>
parent bddff633

include/linux/ceph/libceph.h

+7 −1
Original line number Diff line number Diff line
@@ -81,7 +81,13 @@ struct ceph_options { 


#define CEPH_MSG_MAX_FRONT_LEN	(16*1024*1024)

#define CEPH_MSG_MAX_MIDDLE_LEN	(16*1024*1024)

#define CEPH_MSG_MAX_DATA_LEN	(16*1024*1024)



/*

 * Handle the largest possible rbd object in one message.

 * 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_AUTH_NAME_DEFAULT   "guest"

CRA Git | Maintained and supported by SUSTech CRA and CCSE