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Pavel Emelyanov ef64a54f6e sock: Introduce the SO_PEEK_OFF sock option 
This one specifies where to start MSG_PEEK-ing queue data from. When
set to negative value means that MSG_PEEK works as ususally -- peeks
from the head of the queue always.

When some bytes are peeked from queue and the peeking offset is non
negative it is moved forward so that the next peek will return next
portion of data.

When non-peeking recvmsg occurs and the peeking offset is non negative
is is moved backward so that the next peek will still peek the proper
data (i.e. the one that would have been picked if there were no non
peeking recv in between).

The offset is set using per-proto opteration to let the protocol handle
the locking issues and to check whether the peeking offset feature is
supported by the protocol the socket belongs to.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2012-02-21 15:03:48 -05:00
..
boot Merge branch 'v3.3-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes 2012-02-13 05:50:26 +00:00
common ARM: 7293/1: logical_cpu_map: decouple CPU mapping from SMP 2012-01-23 10:20:05 +00:00
configs Consolidate i.MX 5 platforms to be under the new shared i.MX 3/5/6 tree. 2012-01-23 14:50:30 -08:00
include/asm sock: Introduce the SO_PEEK_OFF sock option 2012-02-21 15:03:48 -05:00
kernel ARM: 7322/1: Print BUG instead of undefined instruction on BUG_ON() 2012-02-09 16:25:37 +00:00
lib ARM: 7301/1: Rename the T() macro to TUSER() to avoid namespace conflicts 2012-01-25 11:07:40 +00:00
mach-at91 ARM: at91: drop ide driver in favor of the pata one 2012-02-13 18:31:37 +01:00
mach-bcmring ARM: bcmring: fix build failure in mach-bcmring/arch.c 2012-02-04 11:38:20 -08:00
mach-clps711x Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-cns3xxx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-davinci ARM: davinci: update mdio bus name 2012-01-27 22:29:09 +05:30
mach-dove ARM: orion: Fix USB phy for orion5x. 2012-02-09 16:16:35 -08:00
mach-ebsa110 Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-ep93xx ep93xx: fix build of vision_ep93xx.c 2012-02-13 06:56:39 +00:00
mach-exynos Merge branch 'v3.3-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes 2012-02-13 05:50:26 +00:00
mach-footbridge Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-gemini ARM: big removal of now unused vmalloc.h files 2011-11-26 19:21:29 -05:00
mach-h720x Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-highbank ARM: 7293/1: logical_cpu_map: decouple CPU mapping from SMP 2012-01-23 10:20:05 +00:00
mach-imx Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm 2012-01-28 13:27:10 -08:00
mach-integrator Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-iop13xx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-iop32x Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-iop33x Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-ixp4xx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-ixp23xx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-ixp2000 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-kirkwood ARM: orion: Fix USB phy for orion5x. 2012-02-09 16:16:35 -08:00
mach-ks8695 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-l7200/include/mach ARM: add an extra temp register to the low level debugging addruart macro 2011-09-26 10:11:25 -04:00
mach-lpc32xx Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
mach-mmp Merge branch 'samsung/driver' into next/drivers 2012-01-09 16:16:29 +00:00
mach-msm ARM: 7293/1: logical_cpu_map: decouple CPU mapping from SMP 2012-01-23 10:20:05 +00:00
mach-mv78xx0 ARM: orion: Fix USB phy for orion5x. 2012-02-09 16:16:35 -08:00
mach-mxs clock management changes for i.MX 2012-01-09 14:44:15 -08:00
mach-netx Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-nomadik Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-omap1 New feature development 2012-01-09 14:38:51 -08:00
mach-omap2 These are the bug fixes that have accumulated since 3.3-rc3 in arm-soc. 2012-02-18 15:40:00 -08:00
mach-orion5x ARM: orion: Fix USB phy for orion5x. 2012-02-09 16:16:35 -08:00
mach-picoxcell Merge branch 'picoxcell-fixes' of git://github.com/jamieiles/linux-2.6-ji into fixes 2012-01-16 22:45:42 -08:00
mach-pnx4008 Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-prima2 Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-pxa Revert "RTC: sa1100: support sa1100, pxa and mmp soc families" 2012-01-19 17:19:18 +00:00
mach-realview ARM: 7298/1: realview: fix mapping of MPCore private memory region 2012-01-25 09:24:36 +00:00
mach-rpc Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-s3c64xx ARM: S3C6410: Use device names for both I2C clocks 2012-01-27 14:43:44 +09:00
mach-s3c2410 ARM: SAMSUNG: Fix missing api-change from subsys_interface change 2012-01-27 15:35:47 +09:00
mach-s3c2412 ARM: SAMSUNG: Fix missing api-change from subsys_interface change 2012-01-27 15:35:47 +09:00
mach-s3c2416 ARM: SAMSUNG: Fix missing api-change from subsys_interface change 2012-01-27 15:35:47 +09:00
mach-s3c2440 ARM: SAMSUNG: Fix missing api-change from subsys_interface change 2012-01-27 15:35:47 +09:00
mach-s3c2443 ARM: SAMSUNG: Fix missing api-change from subsys_interface change 2012-01-27 15:35:47 +09:00
mach-s5p64x0 ARM: SAMSUNG: Fix missing api-change from subsys_interface change 2012-01-27 15:35:47 +09:00
mach-s5pc100 Cleanups for the Samsung platforms 2012-01-09 14:30:28 -08:00
mach-s5pv210 ARM: SAMSUNG: Fix missing api-change from subsys_interface change 2012-01-27 15:35:47 +09:00
mach-sa1100 Merge branch 'sa11x0-mcp-fixes' into fixes 2012-01-26 21:06:54 +00:00
mach-shark Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-shmobile Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma 2012-02-04 10:54:26 -08:00
mach-spear3xx Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-spear6xx Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mach-tegra ARM: tegra: paz00: fix wrong UART port on mini-pcie plug 2012-02-06 18:32:51 -08:00
mach-u300 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl 2012-01-10 10:19:57 -08:00
mach-ux500 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm 2012-01-28 13:27:10 -08:00
mach-versatile Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
mach-vexpress ARM: 7293/1: logical_cpu_map: decouple CPU mapping from SMP 2012-01-23 10:20:05 +00:00
mach-vt8500 ARM: big removal of now unused vmalloc.h files 2011-11-26 19:21:29 -05:00
mach-w90x900 Merge branch 'master' into fixes 2012-01-13 15:00:22 +00:00
mach-zynq Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
mm ARM: 7321/1: cache-v7: Disable preemption when reading CCSIDR 2012-02-09 16:25:37 +00:00
nwfpe ARM: 7207/1: Use generic ARM instruction set condition code checks for nwfpe. 2011-12-13 08:52:02 +00:00
oprofile oprofile, arm/sh: Fix oprofile_arch_exit() linkage issue 2011-12-23 11:58:34 +01:00
plat-iop Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
plat-mxc arm-soc fixes for 3.3-rc: 2012-01-28 13:21:54 -08:00
plat-nomadik Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
plat-omap ARM: OMAP2: Fix the OMAP2 only build break seen with 2011+ ARM tool-chains 2012-02-07 21:33:16 -08:00
plat-orion ARM: orion: Fix USB phy for orion5x. 2012-02-09 16:16:35 -08:00
plat-pxa Merge branches 'drivers/macb-gem' and 'drivers/pxa-gpio' into next/drivers 2011-11-23 20:47:41 +00:00
plat-s3c24xx Merge branch 'master' into fixes 2012-01-13 15:00:22 +00:00
plat-s5p Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2012-01-07 12:03:30 -08:00
plat-samsung ARM: SAMSUNG: Fix platform data setup for I2C adapter 0 2012-01-27 14:51:21 +09:00
plat-spear Merge branch 'depends/rmk/restart' into next/cleanup 2012-01-07 11:51:28 +00:00
plat-versatile ARM: 7293/1: logical_cpu_map: decouple CPU mapping from SMP 2012-01-23 10:20:05 +00:00
tools ARM: Update mach-types 2011-12-23 22:58:10 +00:00
vfp arm: remove several unnecessary module.h include instances 2011-10-31 19:30:48 -04:00
Kconfig ARM: 7291/1: cache: assume 64-byte L1 cachelines for ARMv7 CPUs 2012-01-23 10:20:05 +00:00
Kconfig-nommu
…
Kconfig.debug Merge branches 'at91/gpio', 'at91/ioremap', 'drivers/macb-gem-cleanup' and 'msm/misc' into next/cleanup 2011-12-01 12:34:21 +00:00
Makefile Consolidate i.MX 5 platforms to be under the new shared i.MX 3/5/6 tree. 2012-01-23 14:50:30 -08:00