tree d07b99ec8eec119b53ddc2223de9027d7a8c0263
parent 728ffb86f10873aaf4abd26dde691ee40ae731fe
author Anton Blanchard <anton@samba.org> 1312466859 +0000
committer David S. Miller <davem@davemloft.net> 1312540263 -0700

net: Cap number of elements for sendmmsg

To limit the amount of time we can spend in sendmmsg, cap the
number of elements to UIO_MAXIOV (currently 1024).

For error handling an application using sendmmsg needs to retry at
the first unsent message, so capping is simpler and requires less
application logic than returning EINVAL.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable <stable@kernel.org> [3.0+]
Signed-off-by: David S. Miller <davem@davemloft.net>