kernel_optimize_test/drivers
Alexander Duyck bd4171a5d4 igb: update code to better handle incrementing page count
Update the driver code so that we do bulk updates of the page reference
count instead of just incrementing it by one reference at a time.  The
advantage to doing this is that we cut down on atomic operations and
this in turn should give us a slight improvement in cycles per packet.
In addition if we eventually move this over to using build_skb the gains
will be more noticeable.

Link: http://lkml.kernel.org/r/20161110113616.76501.17072.stgit@ahduyck-blue-test.jf.intel.com
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Cc: Helge Deller <deller@gmx.de>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Keguang Zhang <keguang.zhang@gmail.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-14 16:04:08 -08:00
..
accessibility
acpi ACPI material for v4.10-rc1 2016-12-13 11:06:21 -08:00
amba
android
ata Merge branch 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2016-12-13 15:30:50 -08:00
atm
auxdisplay
base Driver core patches for 4.10-rc1 2016-12-13 11:42:18 -08:00
bcma
block SCSI misc on 20161213 2016-12-14 10:49:33 -08:00
bluetooth
bus
cdrom
char xen: features and fixes for 4.10 rc0 2016-12-13 16:07:55 -08:00
clk
clocksource
connector
cpufreq Power management material for v4.10-rc1 2016-12-13 10:41:53 -08:00
cpuidle
crypto
dax
dca
devfreq
dio
dma remoteproc updates for v4.10 2016-12-13 08:49:12 -08:00
dma-buf
edac
eisa
extcon
firewire
firmware arm64 updates for 4.10: 2016-12-13 16:39:21 -08:00
fmc
fpga
gpio Bulk GPIO changes for the v4.10 kernel cycle: 2016-12-13 07:54:57 -08:00
gpu Main pull request for drm for 4.10 kernel 2016-12-13 09:35:09 -08:00
hid
hsi
hv
hwmon
hwspinlock
hwtracing
i2c
ide
idle Power management material for v4.10-rc1 2016-12-13 10:41:53 -08:00
iio
infiniband
input xen: features and fixes for 4.10 rc0 2016-12-13 16:07:55 -08:00
iommu
ipack
irqchip arm64 updates for 4.10: 2016-12-13 16:39:21 -08:00
isdn
leds
lguest
lightnvm Char/Misc driver patches for 4.10-rc1 2016-12-13 12:11:01 -08:00
macintosh
mailbox
mcb
md . various fixes and improvements to request-based DM and DM multipath 2016-12-14 11:01:00 -08:00
media USB/PHY patches for 4.10-rc1 2016-12-13 11:10:36 -08:00
memory
memstick Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block 2016-12-13 10:19:16 -08:00
message SCSI misc on 20161213 2016-12-14 10:49:33 -08:00
mfd Staging/IIO patches for 4.10-rc1 2016-12-13 11:35:00 -08:00
misc Char/Misc driver patches for 4.10-rc1 2016-12-13 12:11:01 -08:00
mmc MMC core: 2016-12-14 10:55:56 -08:00
mtd
net igb: update code to better handle incrementing page count 2016-12-14 16:04:08 -08:00
nfc
ntb
nubus
nvdimm These are the documentation changes for 4.10. 2016-12-12 21:58:13 -08:00
nvme Just one simple change from Andrzej to drop the pointless return value 2016-12-14 10:31:25 -08:00
nvmem
of Char/Misc driver patches for 4.10-rc1 2016-12-13 12:11:01 -08:00
oprofile
parisc
parport
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2016-12-13 16:33:33 -08:00
pcmcia
perf
phy SCSI misc on 20161213 2016-12-14 10:49:33 -08:00
pinctrl Bulk pin control changes for the v4.10 kernel cycle: 2016-12-13 07:59:10 -08:00
platform Char/Misc driver patches for 4.10-rc1 2016-12-13 12:11:01 -08:00
pnp
power
powercap
pps
ps3
ptp
pwm
rapidio
ras
regulator
remoteproc
reset
rpmsg rpmsg updates for v4.10 2016-12-13 08:52:45 -08:00
rtc
s390 SCSI misc on 20161213 2016-12-14 10:49:33 -08:00
sbus
scsi SCSI misc on 20161213 2016-12-14 10:49:33 -08:00
sfi
sh
sn
soc This is a fairly quiet release. We don't have any patches to the core 2016-12-13 08:54:27 -08:00
spi
spmi
ssb
staging Staging/IIO patches for 4.10-rc1 2016-12-13 11:35:00 -08:00
target SCSI misc on 20161213 2016-12-14 10:49:33 -08:00
tc
thermal Power management material for v4.10-rc1 2016-12-13 10:41:53 -08:00
thunderbolt Char/Misc driver patches for 4.10-rc1 2016-12-13 12:11:01 -08:00
tty Merge branch 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2016-12-13 12:59:57 -08:00
uio
usb Just one simple change from Andrzej to drop the pointless return value 2016-12-14 10:31:25 -08:00
uwb
vfio
vhost
video xen: features and fixes for 4.10 rc0 2016-12-13 16:07:55 -08:00
virt
virtio
vlynq
vme
w1
watchdog Char/Misc driver patches for 4.10-rc1 2016-12-13 12:11:01 -08:00
xen xen: features and fixes for 4.10 rc0 2016-12-13 16:07:55 -08:00
zorro
Kconfig
Makefile