libceph: provide data length when preparing message
authorAlex Elder <elder@inktank.com>
Tue, 2 Apr 2013 17:09:50 +0000 (12:09 -0500)
committerSage Weil <sage@inktank.com>
Thu, 2 May 2013 04:18:03 +0000 (21:18 -0700)
commit98fa5dd883aadbb0020b68d0f9367ba152dfe511
tree982654be5c409de9dd5a48521985e6533b8da4b4
parente5975c7c8eb6aeab8d2f76a98c368081082795e0
libceph: provide data length when preparing message

In prepare_message_data(), the length used to initialize the cursor
is taken from the header of the message provided.  I'm working
toward not using the header data length field to determine length in
outbound messages, and this is a step in that direction.  For
inbound messages this will be set to be the actual number of bytes
that are arriving (which may be less than the total size of the data
buffer available).

This resolves:
    http://tracker.ceph.com/issues/4589

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
net/ceph/messenger.c