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16fd08b859
linux/drivers/net
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Mitch Williams 16fd08b859 i40e/i40evf: avoid atomics 
In the case where we have a page fully used by receive data, we need to
release the page fully to the stack. Instead of calling get_page (which
increments the page count) followed by free_page (which decrements the
page count), just donate our reference to the stack. Although this
donation is not tax deductible, it does allow us to avoid two very
expensive atomic operations that reverse each other.

Change-ID: If70739792d5748995fc175ec92ac2171ed4ad8fc
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-17 23:11:07 -08:00
..
appletalk
arcnet
bonding bonding: use return instead of goto 2016-02-11 09:57:00 -05:00
caif
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
cris
dsa net: dsa: mv88e6xxx: fix port VLAN maps 2016-01-29 19:41:27 -08:00
ethernet i40e/i40evf: avoid atomics 2016-02-17 23:11:07 -08:00
fddi defxx: fix build warning 2016-01-25 10:51:52 -08:00
fjes
hamradio dmascc: Return correct error codes 2016-02-16 15:32:34 -05:00
hippi
hyperv hv_netvsc: cleanup netdev feature flags for netvsc 2016-02-11 07:17:58 -05:00
ieee802154 ieee802154: cc2520: Check CRC & add promiscuous 2016-01-03 09:17:42 +01:00
ipvlan ipvlan: inherit MTU from master device 2016-02-04 19:18:53 -05:00
irda net/irda: bfin_sir: remove duplicate defines 2016-01-21 10:45:45 -08:00
phy net: phy: spi_ks8995: include linux/gpio/consumer.h 2016-02-16 20:37:04 -05:00
plip net: plip: use new parport device model 2016-01-09 21:02:05 -05:00
ppp pptp: fix illegal memory access caused by multiple bind()s 2016-01-24 22:18:26 -08:00
slip
team team: track sum of rx_nohandler for all slaves 2016-02-06 02:59:51 -05:00
usb lan78xx: throttle TX path at slower than SuperSpeed USB 2016-01-28 22:51:43 -08:00
vmxnet3 Driver: Vmxnet3: Fix regression caused by 5738a09 2016-01-06 16:20:13 -05:00
wan x25_asy: Free x25_asy on x25_asy_open() failure. 2016-01-13 11:45:39 -05:00
wimax
wireless Major changes: 2016-02-16 20:38:29 -05:00
xen-netback xen-netback: implement dynamic multicast control 2016-02-07 13:58:36 -05:00
dummy.c
eql.c
geneve.c geneve: add dst caching support 2016-02-16 20:21:49 -05:00
ifb.c
Kconfig
LICENSE.SRC
loopback.c sctp: Rename NETIF_F_SCTP_CSUM to NETIF_F_SCTP_CRC 2015-12-15 16:49:58 -05:00
macvlan.c macvlan: convert to use IFF_NO_QUEUE 2016-02-17 15:19:44 -05:00
macvtap.c net: Rename NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK 2015-12-15 16:50:08 -05:00
Makefile
mdio.c
mii.c
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tun.c tun: honor IFF_UP in tun_get_user() 2015-12-17 15:25:57 -05:00
veth.c veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. 2015-12-22 15:15:34 -05:00
virtio_net.c virtio_net: validate ethtool port setting and explain the user validation 2016-02-11 11:55:38 -05:00
vrf.c vrf: duplicate include of rtnetlink.h 2016-02-11 09:45:24 -05:00
vxlan.c vxlan: treat vni in metadata based tunnels consistently 2016-02-17 23:52:12 -05:00
xen-netfront.c xen-netfront: request Tx response events more often 2016-01-28 16:08:55 -08:00