| Message ID | 20181011135722.15246-1-idryomov@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | libceph: bump CEPH_MSG_MAX_DATA_LEN | expand |
On Thu, Oct 11, 2018 at 9:58 AM Ilya Dryomov <idryomov@gmail.com> wrote: > > 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 <idryomov@gmail.com> > --- > include/linux/ceph/libceph.h | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h > index 49c93b9308d7..68bb09c29ce8 100644 > --- a/include/linux/ceph/libceph.h > +++ b/include/linux/ceph/libceph.h > @@ -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" > > -- > 2.14.4 > Reviewed-by: Jason Dillaman <dillaman@redhat.com>
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index 49c93b9308d7..68bb09c29ce8 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -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"
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 <idryomov@gmail.com> --- include/linux/ceph/libceph.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)