From ef83171b49c66d851a1a0dc6da5b4a4d8ee6ce9a Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Mon, 8 Apr 2019 14:16:05 +0200 Subject: [PATCH] libceph: bump CEPH_MSG_MAX_DATA_LEN (again) This time for rbd object map. Object maps are limited in size to 256000000 objects, two bits per object. Signed-off-by: Ilya Dryomov Reviewed-by: Dongsheng Yang --- include/linux/ceph/libceph.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index a3cddf5f0e60..82156da3c650 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -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" -- 2.45.2