samanthakumar 627d2d6b55 udp: enable MSG_PEEK at non-zero offset ... Enable peeking at UDP datagrams at the offset specified with socket option SOL_SOCKET/SO_PEEK_OFF. Peek at any datagram in the queue, up to the end of the given datagram. Implement the SO_PEEK_OFF semantics introduced in commit ef64a54f6e ("sock: Introduce the SO_PEEK_OFF sock option"). Increase the offset on peek, decrease it on regular reads. When peeking, always checksum the packet immediately, to avoid recomputation on subsequent peeks and final read. The socket lock is not held for the duration of udp_recvmsg, so peek and read operations can run concurrently. Only the last store to sk_peek_off is preserved. Signed-off-by: Sam Kumar <samanthakumar@google.com> Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-04-05 16:29:37 -04:00
..
acpi	Merge branches 'acpi-processor' and 'acpi-cppc'	2016-03-14 14:20:33 +01:00
asm-generic	arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections	2016-03-25 16:37:42 -07:00
clocksource
crypto	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2016-03-17 11:33:45 -07:00
drm	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2016-03-21 13:48:00 -07:00
dt-bindings	The clk changes for this release cycle are mostly dominated by	2016-03-23 06:06:45 -07:00
keys
kvm
linux	udp: enable MSG_PEEK at non-zero offset	2016-04-05 16:29:37 -04:00
math-emu
media	Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm	2016-03-19 16:31:54 -07:00
memory
misc	cxl: Remove cxl_get_phys_dev() kernel API	2016-03-09 23:40:02 +11:00
net	udp: enable MSG_PEEK at non-zero offset	2016-04-05 16:29:37 -04:00
pcmcia
ras
rdma	Round two of 4.6 merge window patches	2016-03-22 15:48:44 -07:00
rxrpc
scsi	SCSI misc on 20160326	2016-03-26 11:31:01 -07:00
soc	IOMMU Updates for Linux v4.6	2016-03-22 11:57:43 -07:00
sound	ASoC: Updates for v4.6	2016-03-14 14:03:29 +01:00
target	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2016-03-22 12:41:14 -07:00
trace	mm/page_isolation: fix tracepoint to mirror check function behavior	2016-04-01 17:03:37 -05:00
uapi	sock_diag: add SK_MEMINFO_DROPS	2016-04-04 22:11:20 -04:00
video
xen	xen-netback: re-import canonical netif header	2016-03-13 22:08:01 -04:00
Kbuild