RDS: Make sure cmsgs aren't used in improper ways

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It hasn't cropped up in the field, but this code ensures it is
impossible to issue operations that pass an rdma cookie (DEST, MAP)
in the same sendmsg call that's actually initiating rdma or atomic
ops.

Disallowing this perverse-but-technically-allowed usage makes silent
RDMA heuristics slightly easier.

Signed-off-by: Andy Grover <andy.grover@oracle.com>

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Andy Grover 2010-04-13 12:00:35 -07:00

parent 2c3a5f9abb

commit aa0a4ef4ac

1 changed files with 9 additions and 0 deletions

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net/rds/send.c

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