af_iucv: use paged SKBs for big outbound messages
authorEugene Crosser <Eugene.Crosser@ru.ibm.com>
Mon, 13 Jun 2016 16:46:14 +0000 (18:46 +0200)
committerDavid S. Miller <davem@davemloft.net>
Wed, 15 Jun 2016 19:21:04 +0000 (12:21 -0700)
commite53743994e21d2458f0129d07b253d66f96f5742
tree21bd1ef7608df9aee124d0bee23992d04a2ec0f0
parent818d49ad164cb680983568e3307a30012ab66a23
af_iucv: use paged SKBs for big outbound messages

When an outbound message is bigger than a page, allocate and fill
a paged SKB, and subsequently use IUCV send primitive with IPBUFLST
flag. This relaxes the pressure to allocate big contiguous kernel
buffers.

Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/iucv/af_iucv.c