tree d0c5e30a637a99cb780e47193167c3a8aa655659
parent 9cf7490360bf2c46a16b7525f899e4970c5fc144
author Hans Westgaard Ry <hans.westgaard.ry@oracle.com> 1454488017 +0100
committer David S. Miller <davem@davemloft.net> 1455010086 -0500

net:Add sysctl_max_skb_frags

Devices may have limits on the number of fragments in an skb they support.
Current codebase uses a constant as maximum for number of fragments one
skb can hold and use.
When enabling scatter/gather and running traffic with many small messages
the codebase uses the maximum number of fragments and may thereby violate
the max for certain devices.
The patch introduces a global variable as max number of fragments.

Signed-off-by: Hans Westgaard Ry <hans.westgaard.ry@oracle.com>
Reviewed-by: Håkon Bugge <haakon.bugge@oracle.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>