AuxXxilium/linux_dsm_epyc7002
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cac2661c53
linux_dsm_epyc7002/net
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Steffen Klassert cac2661c53 esp4: Avoid skb_cow_data whenever possible 
This patch tries to avoid skb_cow_data on esp4.

On the encrypt side we add the IPsec tailbits
to the linear part of the buffer if there is
space on it. If there is no space on the linear
part, we add a page fragment with the tailbits to
the buffer and use separate src and dst scatterlists.

On the decrypt side, we leave the buffer as it is
if it is not cloned.

With this, we can avoid a linearization of the buffer
in most of the cases.

Joint work with:
Sowmini Varadhan <sowmini.varadhan@oracle.com>
Ilan Tayari <ilant@mellanox.com>

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Ilan Tayari <ilant@mellanox.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-01-17 10:22:57 +01:00
..
6lowpan 6lowpan: ndisc: no overreact if no short address is available 2016-09-19 20:19:34 +02:00
9p IB/core: add support to create a unsafe global rkey to ib_create_pd 2016-09-23 13:47:44 -04:00
802 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
8021q Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
appletalk appletalk: use IS_ENABLED() instead of checking for built-in or module 2016-09-10 21:19:10 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-17 20:17:04 -08:00
ax25 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-06 21:33:19 -05:00
bluetooth Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-12-16 10:24:44 -08:00
bridge Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
caif Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-06 21:33:19 -05:00
can ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
ceph libceph: remove now unused finish_request() wrapper 2016-12-14 22:39:08 +01:00
core net: dev_weight: TX/RX orthogonality 2016-12-29 15:38:35 -05:00
dcb net: dcb: set error code on failures 2016-12-03 23:54:25 -05:00
dccp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
decnet Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dns_resolver KEYS: Add a facility to restrict new links into a keyring 2016-04-11 22:37:37 +01:00
dsa net: dsa: Implement ndo_get_phys_port_id 2016-12-29 22:16:53 -05:00
ethernet net: make default TX queue length a defined constant 2016-11-07 20:15:55 -05:00
hsr Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-10-30 12:42:58 -04:00
ieee802154 Makefile: drop -D__CHECK_ENDIAN__ from cflags 2016-12-16 00:13:43 +02:00
ipv4 esp4: Avoid skb_cow_data whenever possible 2017-01-17 10:22:57 +01:00
ipv6 IPsec: do not ignore crypto err in ah6 input 2017-01-16 12:57:48 +01:00
ipx ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
irda Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
iucv Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-12-12 19:25:04 -08:00
kcm Merge branch 'work.splice_read' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-07 15:36:58 -07:00
key netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
l2tp net: l2tp: ppp: change PPPOL2TP_MSG_* => L2TP_MSG_* 2016-12-10 23:29:11 -05:00
l3mdev net: ipv6: Remove l3mdev_get_saddr6 2016-09-10 23:12:53 -07:00
lapb Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
llc net: fix sleeping for sk_wait_event() 2016-11-14 13:17:21 -05:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-17 20:17:04 -08:00
mac802154 ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-06 21:33:19 -05:00
ncsi net/ncsi: Improve HNCDSC AEN handler 2016-10-20 11:23:08 -04:00
netfilter ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
netlabel genetlink: mark families as __ro_after_init 2016-10-27 16:16:09 -04:00
netlink Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
netrom
nfc genetlink: mark families as __ro_after_init 2016-10-27 16:16:09 -04:00
openvswitch openvswitch: upcall: Fix vlan handling. 2016-12-27 12:28:07 -05:00
packet Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
phonet netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
qrtr Merge tag 'qcom-soc-for-4.7-2' into net-next 2016-05-17 14:11:19 -04:00
rds RDS: use rb_entry() 2016-12-20 14:22:49 -05:00
rfkill rfkill: Use switch to demux userspace operations 2016-04-05 10:48:53 +02:00
rose Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
rxrpc rxrpc: abstract away knowledge of IDR internals 2016-12-14 16:04:10 -08:00
sched net: dev_weight: TX/RX orthogonality 2016-12-29 15:38:35 -05:00
sctp sctp: refactor sctp_datamsg_from_user 2016-12-29 14:44:03 -05:00
strparser strparser: Propagate correct error code in strp_recv() 2016-10-12 01:51:49 -04:00
sunrpc ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
switchdev Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-10-30 12:42:58 -04:00
tipc tipc: don't send FIN message from connectionless socket 2016-12-23 17:53:47 -05:00
unix Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-17 20:17:04 -08:00
wimax genetlink: mark families as __ro_after_init 2016-10-27 16:16:09 -04:00
wireless Makefile: drop -D__CHECK_ENDIAN__ from cflags 2016-12-16 00:13:43 +02:00
x25 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
xfrm xfrm: fix possible null deref in xfrm_init_tempstate 2017-01-16 08:36:33 +01:00
compat.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
Kconfig bpf: BPF for lightweight tunnel infrastructure 2016-12-02 10:51:49 -05:00
Makefile strparser: Stream parser for messages 2016-08-17 19:36:23 -04:00
socket.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
sysctl_net.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2016-10-06 09:52:23 -07:00