Eric Dumazet
cef401de7b
net: fix possible wrong checksum generation ...
Pravin Shelar mentioned that GSO could potentially generate
wrong TX checksum if skb has fragments that are overwritten
by the user between the checksum computation and transmit.
He suggested to linearize skbs but this extra copy can be
avoided for normal tcp skbs cooked by tcp_sendmsg().
This patch introduces a new SKB_GSO_SHARED_FRAG flag, set
in skb_shinfo(skb)->gso_type if at least one frag can be
modified by the user.
Typical sources of such possible overwrites are {vm}splice(),
sendfile(), and macvtap/tun/virtio_net drivers.
Tested:
$ netperf -H 7.7.8.84
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to
7.7.8.84 () port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 3959.52
$ netperf -H 7.7.8.84 -t TCP_SENDFILE
TCP SENDFILE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.8.84 ()
port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 3216.80
Performance of the SENDFILE is impacted by the extra allocation and
copy, and because we use order-0 pages, while the TCP_STREAM uses
bigger pages.
Reported-by: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 00:27:15 -05:00
ARM: 7588/1: amba: create a resource parent registrator
2012-12-03 11:15:35 +00:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-01-15 15:05:59 -05:00
can: add private data space for CAN sk_buffs
2013-01-26 16:59:01 +01:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2012-12-20 14:00:13 -08:00
ARM: arm-soc: Updates for Marvell mvebu/kirkwood
2012-12-14 14:54:26 -08:00
UAPI: Remove empty Kbuild files
2013-01-02 17:36:10 -08:00
Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux
2012-12-18 16:51:10 -08:00
iio:imu: Add support for the ADIS16480 and similar IMUs
2012-11-20 21:28:51 +00:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2012-12-18 12:46:37 -08:00
ARM: arm-soc: Device-tree updates, take 2
2012-12-14 14:42:53 -08:00
This is the MFD patch set for the 3.8 merge window.
2012-12-16 18:55:20 -08:00
mlx4_core: Allow choosing flow steering mode
2012-12-19 11:47:22 -08:00
MMC highlights for 3.8:
2012-12-11 11:19:09 -08:00
mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width
2012-12-03 16:36:52 +02:00
netfilter: nf_ct_sip: support Cisco 7941/7945 IP phones
2013-01-17 21:12:44 +01:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch
2012-11-30 12:01:30 -05:00
pinctrl: generic: add input schmitt disable parameter
2012-11-21 08:55:26 +01:00
IOMMU Updates for Linux v3.8
2012-12-20 10:07:25 -08:00
Highlights:
2012-12-13 19:26:04 -08:00
UAPI: Remove empty Kbuild files
2013-01-02 17:36:10 -08:00
Merge remote-tracking branch 'regulator/topic/tol' into regulator-next
2012-12-10 12:43:22 +09:00
Linux 3.7-rc8
2012-12-07 17:02:47 +00:00
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2012-12-14 14:27:45 -08:00
Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux
2012-12-20 14:04:11 -08:00
UAPI: Remove empty Kbuild files
2013-01-02 17:36:10 -08:00
Merge branch 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-12-14 10:03:23 -08:00
gpio / ACPI: add ACPI support
2012-11-30 12:37:36 +01:00
ASN.1: Define indefinite length marker constant
2012-12-14 13:06:41 +10:30
Revert "libata: check SATA_SETTINGS log with HW Feature Ctrl"
2012-12-14 09:34:01 -05:00
include: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
ath9k: allow to load EEPROM content via firmware API
2012-12-10 15:49:57 -05:00
atm: add release_cb() callback to vcc
2012-12-02 00:05:12 +00:00
ASoC: atmel-ssc: add phybase in device structure
2012-11-20 18:18:52 +09:00
linux/audit.h: move ptrace.h include to kernel header
2013-01-11 14:54:56 -08:00
Revert "bdi: add a user-tunable cpu_list for the bdi flusher threads"
2012-12-17 11:29:09 -08:00
backlight: add of_find_backlight_by_node()
2012-12-17 17:15:16 -08:00
mm: introduce a common interface for balloon pages mobility
2012-12-11 17:22:26 -08:00
ssb/bcma: add common header for watchdog
2012-12-06 14:58:56 -05:00
Merge branch 'akpm' (Andrew's patch-bomb)
2012-12-20 20:00:43 -08:00
blk: avoid divide-by-zero with zero discard granularity
2012-12-19 07:18:35 -08:00
mm/bootmem.c: remove unused wrapper function reserve_bootmem_generic()
2012-12-12 17:38:35 -08:00
bsg: Remove unused function bsg_goose_queue()
2012-12-06 14:33:02 +01:00
include/linux/bug.h: fix sparse warning related to BUILD_BUG_ON_INVALID
2012-11-26 17:41:24 -08:00
cgroup: remove obsolete guarantee from cgroup_task_migrate.
2012-11-20 06:44:58 -08:00
The common clock framework changes for 3.8 are comprised of lots of
2012-12-11 11:25:08 -08:00
mm: compaction: partially revert capture of suitable high-order page
2013-01-11 14:54:56 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2012-12-20 18:05:28 -08:00
Nothing all that exciting; a new module-from-fd syscall for those who want
2012-12-19 07:55:08 -08:00
byteorder: allow arch to opt to use GCC intrinsics for byteswapping
2012-12-06 01:22:31 +00:00
Nothing all that exciting; a new module-from-fd syscall for those who want
2012-12-19 07:55:08 -08:00
context_tracking: New context tracking susbsystem
2012-11-30 11:40:07 -08:00
do_coredump(): get rid of pt_regs argument
2012-11-29 00:01:25 -05:00
thermal: cpu cooling: allow module builds
2012-11-22 15:59:52 +08:00
lib: cpu_rmap: avoid flushing all workqueues
2013-01-11 14:54:54 -08:00
cpufreq: governors: remove redundant code
2012-11-15 00:33:07 +01:00
cpuidle: support multiple drivers
2012-11-15 00:34:23 +01:00
cpuset: use N_MEMORY instead N_HIGH_MEMORY
2012-12-12 17:38:32 -08:00
cred: Remove tgcred pointer from struct cred
2013-01-09 08:26:53 -08:00
vfs: remove DCACHE_NEED_LOOKUP
2012-12-20 13:57:36 -05:00
PM / devfreq: remove compiler error when a governor is module
2012-11-26 19:17:44 +09:00
dm: remove map_info
2012-12-21 20:23:41 +00:00
Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-12-14 09:59:59 -08:00
various: Fix spelling of "asynchronous" in comments.
2012-11-19 14:32:13 +01:00
common: DMA-mapping: add DMA_ATTR_FORCE_CONTIGUOUS attribute
2012-11-29 03:30:34 -08:00
dma-buf: remove fallback for !CONFIG_DMA_SHARED_BUFFER
2012-12-20 12:05:06 +05:30
drivers: cma: represent physical addresses as phys_addr_t
2012-12-11 09:28:09 +01:00
EDAC: Fix csrow size reported in sysfs
2012-11-28 11:54:40 +01:00
Revert "x86-64/efi: Use EFI to deal with platform wall clock (again)"
2012-12-15 15:20:41 -08:00
net: split eth_mac_addr for better error handling
2013-01-21 14:07:44 -05:00
Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux
2012-12-20 14:04:11 -08:00
extcon: kernel_doc style fix
2012-11-22 13:43:27 +09:00
f2fs: introduce accessor to retrieve number of dentry slots
2012-12-11 13:43:45 +09:00
kill daemonize()
2012-11-28 21:49:02 -05:00
Merge branch 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2012-12-12 08:18:24 -08:00
Merge branch 'fscache' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs into for-linus
2012-12-20 18:49:14 -05:00
kill daemonize()
2012-11-28 21:49:02 -05:00
FS-Cache: Mark cancellation of in-progress operation
2012-12-20 22:34:00 +00:00
FS-Cache: Provide proper invalidation
2012-12-20 22:04:07 +00:00
drivers/video: fsl-diu-fb: add support for set_gamma ioctls
2012-11-26 13:41:19 -06:00
fsnotify: make fasync generic for both inotify and fanotify
2012-12-11 13:44:36 -05:00
lseek: the "whence" argument is called "whence"
2012-12-17 17:15:12 -08:00
tracing: Format non-nanosec times from tsc clock without a decimal point.
2012-11-13 15:48:40 -05:00
block: store partition_meta_info.uuid as a string
2012-11-23 14:28:53 +01:00
mm: allocate kernel pages to the right memcg
2012-12-18 15:02:12 -08:00
gpiolib: rename pin range arguments
2012-11-21 10:07:48 +01:00
propagate name change to comments in kernel source
2012-12-06 10:39:54 +01:00
HID: sensors: autodetect USB HID sensor hubs
2012-12-12 16:49:10 +01:00
Merge branches 'for-3.7/upstream-fixes', 'for-3.8/hidraw', 'for-3.8/i2c-hid', 'for-3.8/multitouch', 'for-3.8/roccat', 'for-3.8/sensors' and 'for-3.8/upstream' into for-linus
2012-12-12 21:41:55 +01:00
Automatic NUMA Balancing V11
2012-12-16 15:18:08 -08:00
Automatic NUMA Balancing V11
2012-12-16 15:18:08 -08:00
mm/hugetlb: create hugetlb cgroup file in hugetlb_init
2012-12-18 15:02:15 -08:00
perf: Make perf build for x86 with UAPI disintegration applied
2012-11-19 22:21:03 +00:00
i2c: omap: Remove the OMAP_I2C_FLAG_RESET_REGS_POSTIDLE flag
2012-11-28 11:36:32 +01:00
i2c / ACPI: add ACPI enumeration support
2012-11-23 12:23:40 +01:00
wireless: fix VHT max AMPDU exponent definition
2012-12-06 14:02:51 +01:00
net: unify for_each_ip_tunnel_rcu()
2012-11-14 18:49:50 -05:00
ima: support new kernel module syscall
2012-12-14 13:05:26 +10:30
ipv6: Move comment to right place.
2013-01-13 21:04:37 -05:00
netconf: advertise mc_forwarding status
2012-12-04 13:08:10 -05:00
Remove __dev* markings from init.h
2013-01-10 10:57:01 -08:00
lib: cpu_rmap: avoid flushing all workqueues
2013-01-11 14:54:54 -08:00
net: Add support for hardware-offloaded encapsulation
2012-12-09 00:20:28 -05:00
ipack: remove use of __devinitconst
2012-11-21 15:09:26 -08:00
ipc: add sysctl to specify desired next object id
2013-01-04 16:11:45 -08:00
various: Fix spelling of "asynchronous" in comments.
2012-11-19 14:32:13 +01:00
ipv6: Store Router Alert option in IP6CB directly.
2013-01-13 20:17:14 -05:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2012-12-13 14:20:19 -08:00
ext4: fix deadlock in journal_unmap_buffer()
2012-12-25 13:29:52 -05:00
time: Kill xtime_lock, replacing it with jiffies_lock
2012-11-13 14:08:23 -05:00
linux/kernel.h: fix DIV_ROUND_CLOSEST with unsigned divisors
2012-12-20 17:40:20 -08:00
vtime: Explicitly account pending user time on process tick
2012-11-19 16:41:21 +01:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2012-12-16 15:40:50 -08:00
kobject: remove CONFIG_HOTPLUG ifdefs
2012-11-28 10:33:03 -08:00
kref: Implement kref_get_unless_zero v3
2012-11-20 16:15:02 +10:00
Merge tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2012-12-13 15:31:08 -08:00
led: Add dependency on CONFIG_LEDS_TRIGGERS to led_trigger_rename_static()
2012-11-26 14:28:51 -08:00
libata: implement ata_platform_remove_one()
2012-12-03 05:15:17 -05:00
lockdep, rwsem: provide down_write_nest_lock()
2013-01-11 14:54:55 -08:00
loop: Limit the number of requests in the bio list
2012-11-30 11:48:05 +01:00
Merge branch 'for-3.8/drivers' of git://git.kernel.dk/linux-block
2012-12-17 13:39:11 -08:00
memcg: add comments clarifying aspects of cache attribute propagation
2012-12-18 15:02:15 -08:00
hotplug: update nodemasks management
2012-12-12 17:38:33 -08:00
mm, memory-hotplug: dynamic configure movable memory and portion memory
2012-12-11 17:22:28 -08:00
mm: mempolicy: Convert shared_policy mutex to spinlock
2013-01-02 17:32:13 -08:00
net: add micrel KSZ8873MLL switch support
2012-11-23 14:29:51 -05:00
Automatic NUMA Balancing V11
2012-12-16 15:18:08 -08:00
[SCSI] miscdevice: Adding support for MPT3SAS_MINOR(222)
2012-12-01 10:07:54 +00:00
mm: compaction: partially revert capture of suitable high-order page
2013-01-11 14:54:56 -08:00
Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
2012-12-18 10:56:07 -08:00
mm: export a function to get vm committed memory
2012-11-15 15:41:22 -08:00
mm: fix zone_watermark_ok_safe() accounting of isolated pages
2013-01-04 16:11:46 -08:00
vfs: Add a user namespace reference from struct mnt_namespace
2012-11-19 05:59:19 -08:00
moduleparam: use __UNIQUE_ID()
2012-12-14 13:06:40 +10:30
mcast: define and use MRT[6]_MAX in ip[6]_mroute_opt()
2013-01-21 13:55:14 -05:00
mcast: define and use MRT[6]_MAX in ip[6]_mroute_opt()
2013-01-21 13:55:14 -05:00
selftests: IPC message queue copy feature test
2013-01-04 16:11:45 -08:00
namei.h: include errno.h
2012-12-25 18:45:06 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-01-15 15:05:59 -05:00
netpoll: prepare for ipv6
2013-01-08 17:56:09 -08:00
NFSv4.1: Move slot table and session struct definitions to nfs4session.h
2012-12-06 00:30:46 +01:00
NFSv4.1: Move the RPC timestamp out of the slot.
2012-12-15 15:21:52 -05:00
mm: cleanup register_node()
2012-12-11 17:22:27 -08:00
numa: add CONFIG_MOVABLE_NODE for movable-dedicated node
2012-12-12 17:38:34 -08:00
userns: Implement unshare of the user namespace
2012-11-20 04:18:14 -08:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2012-12-18 09:58:09 -08:00
of/address: sparc: Declare of_iomap as an extern function for sparc again
2012-11-23 22:01:15 +00:00
of/i2c: add dummy inline functions for when CONFIG_OF_I2C(_MODULE) isn't defined
2012-12-11 17:30:16 +00:00
of: define struct device in of_platform.h if !OF_DEVICE and !OF_ADDRESS
2012-12-19 16:15:17 +00:00
ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
2012-11-30 08:41:50 -08:00
ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
2012-11-20 10:04:29 -08:00
mm, oom: fix race when specifying a thread as the oom origin
2012-12-11 17:22:27 -08:00
openvswitch: add skb mark matching and set action
2012-11-26 11:33:18 -08:00
mm: Fix PageHead when !CONFIG_PAGEFLAGS_EXTENDED
2012-12-26 14:57:34 -08:00
memory-hotplug: skip HWPoisoned page when offlining pages
2012-12-11 17:22:22 -08:00
mm: introduce a common interface for balloon pages mobility
2012-12-11 17:22:26 -08:00
PCI changes for the v3.8 merge window:
2012-12-13 12:14:47 -08:00
PCI: Reduce Ricoh 0xe822 SD card reader base clock frequency to 50MHz
2012-12-26 10:43:06 -07:00
percpu_rw_semaphore: add lockdep annotations
2012-12-17 17:15:18 -08:00
net: phy: remove flags argument from phy_{attach, connect, connect_direct}
2013-01-14 15:11:50 -05:00
pidns: Stop pid allocation when init dies
2012-12-25 16:10:05 -08:00
pidns: Stop pid allocation when init dies
2012-12-25 16:10:05 -08:00
ACPI / platform: Initialize ACPI handles of platform devices in advance
2012-11-21 00:21:59 +01:00
power_supply: Register power supply for thermal cooling device
2012-11-17 20:32:33 -08:00
Merge branch 'akpm' (Andrew's patch-bomb)
2012-12-17 20:58:12 -08:00
efi_pstore: Add a sequence counter to a variable name
2012-11-26 16:07:44 -08:00
pstore: remove __dev* attributes.
2013-01-03 15:57:14 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2012-12-20 18:05:28 -08:00
time: export time information for KVM pvclock
2012-11-27 23:29:12 -02:00
pwm: Device tree support for PWM polarity
2012-11-22 22:47:12 +01:00
soreuseport: infrastructure
2013-01-23 13:44:00 -05:00
lib/rbtree.c: avoid the use of non-static __always_inline
2013-01-11 14:54:56 -08:00
rcu: Remove list_for_each_continue_rcu()
2012-11-13 14:08:21 -08:00
context_tracking: New context tracking susbsystem
2012-11-30 11:40:07 -08:00
Merge remote-tracking branch 'regmap/topic/table' into regmap-next
2012-12-11 12:39:32 +09:00
res_counter: return amount of charges after res_counter_uncharge()
2012-12-18 15:02:12 -08:00
rapidio: fix kernel-doc warnings
2012-11-16 14:33:04 -08:00
mm/rmap, migration: Make rmap_walk_anon() and try_to_unmap_anon() more scalable
2012-12-11 14:43:00 +00:00
lockdep, rwsem: provide down_write_nest_lock()
2013-01-11 14:54:55 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2012-12-20 18:05:28 -08:00
tun: fix LSM/SELinux labeling of tun/tap devices
2013-01-14 18:16:59 -05:00
tty/8250_early: Turn serial_in/serial_out into weak symbols.
2012-11-16 04:39:15 -08:00
mm: support more pagesizes for MAP_HUGETLB/SHM_HUGETLB
2012-12-11 17:22:25 -08:00
new helpers: __save_altstack/__compat_save_altstack, switch x86 and um to those
2012-12-19 18:07:41 -05:00
net: fix possible wrong checksum generation
2013-01-28 00:27:15 -05:00
slab: propagate tunable values
2012-12-18 15:02:14 -08:00
slab/slub: struct memcg_params
2012-12-18 15:02:13 -08:00
slub: slub-specific propagation changes
2012-12-18 15:02:14 -08:00
net: phy: smsc: force all capable mode if the phy is started in powerdown mode
2012-12-07 12:48:00 -05:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-12-13 12:00:02 -08:00
string: introduce helper to get base file name from given path
2012-12-17 17:15:17 -08:00
clocksource: sunxi: Add Allwinner A1X Timer Driver
2012-11-16 21:56:50 +01:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2012-12-20 18:05:28 -08:00
sysctl: Pass useful parameters to sysctl permissions
2012-11-18 20:30:55 -05:00
net: Add support for hardware-offloaded encapsulation
2012-12-09 00:20:28 -05:00
Thermal: Fix DEFAULT_THERMAL_GOVERNOR
2012-12-12 15:34:48 +08:00
fork: protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs
2012-12-18 15:02:13 -08:00
cpuidle: Quickly notice prediction failure for repeat mode
2012-11-15 00:34:19 +01:00
tracing,x86: Add a TSC trace_clock
2012-11-13 15:48:27 -05:00
TTY: introduce tty_port_destroy
2012-11-15 17:20:58 -08:00
mm, oom: fix race when specifying a thread as the oom origin
2012-12-11 17:22:27 -08:00
net: Add support for hardware-offloaded encapsulation
2012-12-09 00:20:28 -05:00
uprobes: Use percpu_rw_semaphore to fix register/unregister vs dup_mmap() race
2012-11-16 14:52:51 +01:00
proc: Usable inode numbers for the namespace file descriptors.
2012-11-20 04:19:49 -08:00
proc: Usable inode numbers for the namespace file descriptors.
2012-11-20 04:19:49 -08:00
Fix misspellings of "whether" in comments.
2012-11-19 14:31:35 +01:00
virtio: add drv_to_virtio to make code clearly
2012-12-18 15:20:43 +10:30
Automatic NUMA Balancing V11
2012-12-16 15:18:08 -08:00
mm: numa: Add pte updates, hinting and migration stats
2012-12-11 14:42:48 +00:00
vtime: Explicitly account pending user time on process tick
2012-11-19 16:41:21 +01:00
wait: add wait_event_lock_irq() interface
2012-11-30 11:47:57 +01:00
watchdog: WatchDog Timer Driver Core: fix comment
2012-12-19 22:24:55 +01:00
writeback: remove nr_pages_dirtied arg from balance_dirty_pages_ratelimited_nr()
2012-12-11 17:22:21 -08:00
